4196 4200.output

* GB784603 (A)
Description: GB784603 (A) ? 1957-10-09
Fuel feeding apparatus for pressure burners
Description of GB784603 (A)
PATENT SPECIFICATION
Date of Application and filing Complete Specification: Nov 21, 1 i No
33307/55.
i f f) Application made in United States of America on Nov 30, 1954.
Complete Specification Published: Oct 9, 1957.
Index at acceptance:-Classes 75 ( 1), TA 2 C, TH( 1 M: 4 G); and 135,
VM 2 H.
International Classification:-F 06 k F 23 d.
COMPLETDE SPEC It FICATION Fuel Feeding Apparatus for Pressure Burners
We, ALADDIN INDUSTRIES, INCORPORATED, a corporation organised and
existing under the laws of the State of Illinois, United States of
America, of 705, Murfreesboro Road, Nashville, Tennessee, United
States of America, do hereby declare the invention, for which we pray
that a patent may be granted to us, and the method by which it is to
be performed, to be particularly described in and by the following
statement: -
This invention relates to new and improved fuel feeding apparatus for
pressure burners of the type adapted to use liquid hydrocarbon fuel
such as gasoline or kerosene, for example.
In accordance with the invention a valve for a liquid fuel burner of
the pressure type comprising a stationary member supported on a fuel
tank, a mixing tube extending downwardly from said stationary member
into said tank comprising a first tube for mixing fuel with air moving
therethrough and 'a second tube around said first tube having a closed
lower end, a general fuel passage in said stationary member connected
to an outlet conduit formed therein, a starting fuel supply passage in
communication with said first tube extending through said stationary
member, an air supply passage extending from the top of said tank
through said stationary member, an intermediate passage extending
trough said stationary member to said second tube, a valve operating

member supported on and movable relative to said stationary member and
a gasket member of resilient material disposed between said stationary
member and said valve operating member is characterized in that said
gasket member is p Oyvided with passages in alignment with said
general fuel passage, said air passage, said intermediate passage, and
said starting fuel passage, and said valve operating member is
provided with recesses adapted o interconnect desired pairs' of said
passages for the starting condition and the running condition of the
burner land to disconnect said passages for the shut-off condition of
the burner.
One principal object of the invention is to lPrice 3 s 6 d l 7.JJ.
provide a new land improved arrangement whereby the burner may be
supplied with a mixture of air and atomized fuel for starting the
burner and then may be operated with vaporized liquid fuel fed from
'the fuel tank through the generator to the burner.
A further object is to provide la fuel feeding arrangement of the
foregoing character which is highly effective and dependable, yet is
much simpler and less expensive than prior arrangements.
The invention and its operation is explained in the following
description with reference to the accompanying drawings, in which:
Figure 1 is an elevational sectional view of fuel feeding apparatus
constituting an illustrative embodiment of the invention, the view
being taken generally along la line 1-1 i Fig 3 b; Fig 2 is an
enlarged cross-sectional view taken generally along a line 2-2 in Fig
1; Figs, 3 a, 3 b, and 3 c are somewhat diagrammatic fragmentary
cross-isectional views taken generally along a line 3-3 in Fig 1, the
views showing the apparatus in starting, running, and shutoff
positions, respectively; Fig 4 is an enlarged fragmentary elevational
sectional view taken generally along a line 4-4 in Fig 3 a;' Fig 5 is
a fragmentary enlarged elevational view taken generally along a line
5-5 inFig 2; Fig 6 is an enlarged cross-sectional view taken generally
along 'a line 6-6 an Fig 1; Figs 7, 8 and -9 are diagrammatic
elevational sectional views illustrating the operation of the
exemplary apparatus in starting, running, and shutoff positions,
respectively.
If the drawings 'are considered in greater detail, it will be seen
that they illustrate, in fragmentary fashion, a pressure burner 11
having a fuel tank 12 adapted to hold gasoline, or other liquid
hydrocarbon fuel, under pressure The pressure may be provided in the
conventional manner, by means of a pump (not shown) adapted te supply
compressed air to the upper end portion of the tank, above 784,603 Irr
the body of liquid fuel It will be understood that the burner 11
includes a suitable generator tube or other structure (not shown)
adapted to heat and thereby vaporize liquid hydrocarbon fuel, together

with a burner head (not shown) for burning the fuel vapor received
from the generator.
In order to feed fuel from the tank 12 to the vapor generator, the
burner 11 is provided with fuel feeding apparatus 13, including a fuel
control valve 14 provided with a valve body 15 An outlet port 16 is
formed in one side of the valve body 15 to receive an outlet fuel pipe
or other conduit 17, which runs to the vapor generator (not shown).
Fuel is withdrawn from the tank 12 by means of a mixture tube 18 which
is conneoted at its upper end 'to the valve body and is arranged with
an open-mouthed lower end portion 19 extending downwardly into the
tank 12 for immersion in the body of liquid fuel More specifically,
the mixture tube 18 is connected to the valve body 15 by means of a
hollow stem 20 having its lower end received in the upper end of the
mixture tube The upper end of the stem 20 is threaded into a bore 21
formed in the lower end of the valve body 15 An axial bore or passage
22 extends through the stem 20.
The mixture tube 18 is arranged to provide a mixture of air
and:atomized fuel for starting the burner, before the vapor generator
has reached its operating temperature To this end, the upper end
portion of the mixture tube 1 '8 is filled with loosely packed wick
material 23 adapted to soak up liquid fuel from the tank 12 When air
is directed upwardly through the wicking 23 in the upper portion of
the tube 18, the air entrains and atomizes fuel so that a mixture of
fuel and air will flow outwardly into the bore 21 in the valve body
15.
To afford communication between the valve body 15 and the lower end
portion 19 of the mixture tube 18, the fuel feeding apparatus 13
includes a tube or conduit 24 which in this instance is in the form of
a sleeve co-axially disposed around the mixture tube The sleeve 24 is
spaced outwardly from the mixture tube 18 to define an annular passage
25 between the sleeve and the tube At its lower end, the sleeve 24 is
closed by an inturned flange 26 soldered, welded, or otherwise secured
to the mixture tube 18 Communication is afforded between the lower
ends of the sleeve 24 and the mixture tube 1,8 by means of one or more
ports 2 i 7 extending through the wall of the tube 18 adjacent the
lower end of the sleeve 24 To connect the sleeve 24 to the valve body
15, an enlarged disk-like portion 28 is formed on the stem 20 and is
received within the upper end of the sleeve 24 The enlarged portion 28
is' seated in 'a counterbore 29 formed in the valve body 15 below the
bore 21 One or more passages 30 extend through the enlarged portion 2
'8 to connect the upper end of the sleeve 24 to the bore 29.
As shown in Figs 1 and 4, generally longitudinal passages 31 and 32
are formed in the valve body 15 with their lower ends corn 70
municating with the bores 21 and 29, respectively Thus, the passages

31 and 32 are in communication with the upper ends of the mixture tube
18 and the sleeve 24 In addition, the valve body 15 is formed with a
75 generally longitudinal air passage 33 (Fig 4) having its lower end
opening into the upper end portion of the tank 12 An outlet passage 34
extends upwardly from the outlet port 16.
Provision is made for selectively controlling 80 the communication
between the various passages 31-34 To this end, the valve 14 is
provided with a pair of relatively movable valve members 35 and 36,
the latter of which is rotatable relative to the former, in this in 85
stance It will be seen that the valve member is in the form of a soft
resilient rubberlike circular disk having flat upper and lower
surfaces 37 and 38 A bore 39 is formed in the upper end of the valve
body 15,to receive 90 the resilient disk 35 Preferably, the resilient
disk 35 is made of synthetic rubber or the like A flat end surface 40
is formed in the bore 39 to abut against the lower end surface 38 of
the resilient disk 35 The passages P 5 31, 32, 33 and 34 in the valve
body 15 com-.
municate with the lower ends of respective vertical ports 41, 42, 43,
and 44 (Fig 3 a) extending through the rubber-like disk 35.
As shown, the movable valve member 36 100 is diskshaped in form and is
rotatable in an enlarged counterbore 45 formed in the valve body above
the bore 39 A stem 47, extending upwardly from the valve member 36, is
fitted with a manually rotatable handle or lever 48 105 The valve
member 36 is retained in the bore by means of a flanged collar 49
threaded over the upper end of the valve body 15 A flanged detent ring
50 is retained between the collar 49 'and the valve member 36 It will
110 be seen that the collar 49 holds the valve member 3 '6 downwardly
against the rubber-like member 35, with the result that compressive
forces are exerted against the opposite end surfaces 37 and 38 of the
rubber-like disk 115 Accordingly, the disk 35, in addition to
functioning as a valve member, forms seals with the movable valve
member 36 and the valve body 15.
To define starting, running and shutoff 120 positions of 'the movable
valve member 36, the detent ring 50 is provided with angularly spaced
detent recesses 51, 52, and 53 A movable detent member 54 is provided
in the form of a ball disposed in a generally dia 125 metrical recess
55 formed in the stem 47.
A spring 56 is disposed between the ball 54 and the closed end of the
recess 55 to bias the ball outwardly It will be seen that the
rotatable valve mern 130 784,603 784 6 O'3 3 her 36 is formed with a
filat lower surface 5,7 which engages the top surface 37 of the of the
rubber-like 'disk 35 In order to control communication among the
various ports 4144, recesses 58 and 59 (Fig 3 a) are provided in the
lower surface 57 on the movable valve member 36 In the illustrated

construction, the recess 5,8 is radially disposed 'and hence is
adapted to communicate continuously with the outlet port 44, which is
axially disposed in the rubber-like disk 35 It will be seen that the
ports 41, 42, and 43 are angularly spaced from each other and are
spaced outwardly from the axial outlet port 44 Accordingly, ithe
radial recess 518 is movable into registration with the ports 41 and
42 Such registration occurs in the starting and running positions of
the valve member 36, respectively, as indicated in Figs 3 a and 3 b In
the shutoff position, illustrated in Fig 3 c, the radial recess 58 is
out of communication with all of the ports 41-43, with the result that
the outlet port 44 is shut off from any communication with the tank
12.
As shown, the second recess 59 is arcuate and is disposed with its
center of curvature coinciding with the axis of the rotatable valve
member 36 In the starting position (Fig 3 a), the recess 59 ' bridges
the ports 42 and 43 and hence provides communication between the upper
end of the tank 12 and the upper end of the sleeve 24 Accordingly, air
flows from the tank 12 into the sleeve 24, and thence through the
ports 27 into the mixture tube 1 8 The air passes upwardly through the
wicking 2 '3 in the upper end of the mixture tube, with the result
that a mixture of fuel and air passes through the port 41 and the
radial recess '5,8 into the outlet port 44, and thence to the outlet
pipe 17 leading to the vapor generator.
In the running position of the valve, as indicated in Fig 3 b, the
recess 59 is out 'of communication with the ports 41 and 43 In the
shutoff position, as shown in Fig 3 c, the recess 59 communicates only
with the port 41, but this has no effect since there is no
communication between any pair of the ports 41-44.
To prevent rotation of the rubber-like disk 351 when the valve member
3:6 is operated, one or more projections 60 are formed on the lower
side of the disk 35 and are received in corresponding recesses 61 '
(Fig 5) which are provided in the valve body 15 Two such projections
60 are utilized in the illustrated construction.
While the operation of the 'exemplary fuel feeding apparatus 13, will
be clear from the foregoing description, it may be helpful to offer a
brief resume When the pressure burner is to be lighted, the pressure
pump (not shown) is operated to build up air pressure in the upper
portion of the tank 12 above the body of liquid fuel Then the handle
48 is rotated to move the valve member 36 to the starting position, as
shown in Figs 3 a, 4, and '7, With the valve in this position, air
passes upwardly from the tank through the air passage 33 into the port
43 and thence 70 through the arcuate recess 59, into the port 42 The
air then passes downwardly through the passage 32 into the upper end
of the sleeve 24 After being conveyed downwardly through the annular

passage 25 between the sleeve 24 75 and the mixture tube 18, the air
enters the tube 18 through the ports 2 7 and passes upwardly through
the wick material 23 Accordingly, fuel is mixed with the air and the
mixture passes upwardly through the passages 80 22 and' 31 to the port
41, and thence through the radial recess 58 and the port 44 into the
outlet passage 34 and the outlet pipe 17.
Accordingly, the mixture of fuel and air is carried to the burner so
as to facilitate igni 85 tion of the burner.
Once the vapor generator of the burner has been heated to its normal
operating temperature, it is desirable to supply liquid fuel to the
burner, rather than a mixture of fuel and 90 air Accordingly, the
handle 48 is rotated to move the valve member 36 to the running
position, as shown in Figs 1, 3 b, and 8 In this position of the
valve, liquid fuel passes upwardly through the lower end portion 19 95
of the mixture tube 18 and through the ports 217 into the sleeve 24
The upward movement of the liquid fuel is impelled by the air pressure
in the tank After passing through the annular passage 25 between the
sleeve 24 and 100 the mixture tube 18, the liquid fuel rises through
the passages 30 and 32 and then is conveyed through the port 42 and
the radial recess 58 into the outlet port 44 and the outlet pipe 17
105 When it is desired to extinguish the burner, the handle 48 is
rotated to move the valve member 316 into the shutoff position as
shown in Figs 3 c and 9 In this position, none of the ports 41-44 is
in communication with 110 any other port Accordingly, all
communication between the tank 12 and the outlet pipe 17 is cut off,
with the result that the burner is positively extinguished.
It will now be understood that the sleeve 115 24 serves the dual
function of an air conduit during the starting phase and a liquid fuel
conduit during the running phase of the burner In this way the
construction of the fuel feeding apparatus is greatly simplified 120
Because of the resilience of the rubber-like disk 35, pressure is
maintained between the faces 3,7 and 318 of the disk in the engaging
components, consisting of the valve member 36 and the surface 40 of
the valve body 125 Accordingly, the rubber-like disk 35 serves as both
a valving member and a sealing member.
Because of the provision of the detent elements 517, 52, 53, and 54,
the starting, run 130 784760 o 3 ning, and shutoff positions of the
handle 48 and valve member 36 are definitely and positively defined
Accordingly, the valve 14 is positive and dependable in operation It
will be apparent that the fuel feeding arrangement is low 1 in cost,
yet effective in operation.
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* GB784604 (A)
Description: GB784604 (A) ? 1957-10-09
Improvements in board games
Inventor: KIENNETH 'BR'A'DF'IELD BARBER 784,604 Date of Application
and filing Complete Specificaiion: Feb 15, 1956.
No 4772/56.
Index at acceptance:-Class 132 ( 2), H 3 B. International
Classification;-A 63 f.
COOMPLETE,SPECIFICATION
Improvements' in Board Games We, ARIEL PRODUCTIONS LIMITED, a British
Company,of 23-24, Maiden Lane, London, W C 2, do hereby declare the
invention, for which we pray that 'a patent may be granted to us, and
the method by which it is to be performed, to be particularly
described in and by the following statement:-
The present invention provides apparatus for playing a game comprising
a board presenting a map having intersecting routes representing
paths, roads or the like and a plurality of starting and desination
locations thereon, said routes being divided into sections, a
plurality of location,cardls, tokens or the like (hereinafter for
convenience referred to as location cards) usable in succession, to
indicate 'at least one starting location and at least one destination
location, and playing pieces each initially placeable on any one of
said sections and movable thence to the or an indicated starting
location and thereafter movable over a oumrney to the indicated
destination location, said map being divided by grid lines, the number
of grid rectangles extending in twoe mnutually perpendicular

directions between and including the indicated starting and
destination points serving to determine a basic score for the journey.
For example, the board may present a map as illustrated in
the,accompanying drawing, whereon are shown a suitable number of well
known, actual buildings or institutions, such as main, railway
stations 10, theatres 11, museums and the like 12, and other buildings
or sites 13 of public interest There may also be shown in the map a
suitable number of fictitious points capable of serving as starting
points or destination points, which are indicated by the circles
numbered 14.
The map, which in the example shown comprises the main roads of
central London, is divided into 24 squares lettered A to F
horizontally and numbered 1 to 4 vertically, by grid lines 15 At
various points the road system is marked with transverse Elines 16 to
divide the roads into sections These lines 'are not equally spaced but
are so, located as to provide the ends of sections at points where one
of the movable pieces on being stopped may desirably have ito be taken
over a selected altemrnative route instead of going ahead on,e same
route.
In order to provide for exercise of the skill of the players, the
pieces rare to be moved by each player in turn through one route
section at a time in any direction and around any corner up to a
section end 16, as the player may think advantageous :When playing a
game with apparatus as aforesaid, basic scoring may be effected by
values dependent upon the distance, between the statding and
destination points, determined by referring to the number of grid
squares extending in two mutually perpendicular directions between and
including said points Said values rare preferably uniform.
Thus for example, the basic score for a journey from
Paddington:Station to London Bridge Station, as shown on' the map, is
6,,comprising live squares horizontally and one square vertically,
while the basic score from Kings Cross or St Pancras Station to
Victoria Station is 4, comprising one square horizontally and three
squares vertically.
The skill for players is further excerised in knowledge of the map
'and the locations 'of the pick-up and destination points thereon.
The game may be played with the aid of pieces representing for
example, taxi cabs, each player having a number of such pieces of a
distinctive colour and being enabled to locate a first piece on
any:selected route section, so that his skill is further involved in
judging where to cruise with a view to obtaining journeys easily and
quickly, and 'also in estimating the best routes to follow when
undertaking journeys and avoiding hazards, as will hereinafter be
described.

The location cards for indicating the starting points and destination
points, may comprise separate series for each purpose, or a joint
series for the two purposes, and bear the X t S.
At nt, -I names of said points There may be only a single card for
each such point, or a suitable plurality of cards for one or for each
of a selected number of points, When each player has located a piece
on the map, for example, a dealer may expose, from a shuffled pack of
such a joint series of cards, three cards, the first two of which
indicate starting points and,the third of which indicates a
destination point.
The players have thereupon to decide whether or not to move their
pieces towards one or other of the starting points, by one route
section at the time On the arrival of the first piece on the route
section including such a starting point the corresponding starting
point card is discarded and the owner of said piece takes the
destination card, and thereafter proceeds,to move his piece towards
the route section including the destination point.
In the use of apparatus as described, any model piece in a grid square
which includes a starting point reached by another piece, or in an
adjacent square, may be enabled to undertake the indicated journey
under a score penalty which is fixed or determined by underbidding
between the players holding such pieces, after reaching the starting
point.
A modification of the apparatus may be provided by a further plurality
of cards, tokens or the like (hereinafter for convenience called bonus
cards),taken after arrival at the starting point of the piece which is
to undertake the indicated journey to afford a bonus score determined
by the value of a duty arbitrarily indicated by said card.
For example, such bonus cards, in a game played with pieces
representing taxi cabs as above described, may indicate types of
passengers, andan amount receivable as a tip from such a passenger,
constituting a bonus score for the journey to be undertaken Such bonus
cards may, for example, be shuffled and placed in a stack face
downwards, the player undertaking the journey selecting the top card
of the stack before leaving the starting point.
Thus, in the case of bidding between a number of players to undertake
a particular journey, the extent of the bidding is not limited by the
score corresponding to the distance to be txaversed, but may also take
into account the chances of a bonus score afforded by the bonus card
to be acquired.
Further, when a starting point card is withdrawn from availability on
being taken by the player undertaking the journey from said point, it
is replaced by another card arbitrarily indicating another starting
point.

The apparatus may further include a plurality of cards, tokens or the
like (hereinafter called "hazard" cards) usable by being taken one at
a time by a player on arrival of his piece at the starting point, and
serving to make each journey'subject to a hazard arbitrarily indicated
by the card so taken Gertain of said hazard cards may serve to impose
restrictions applicable to all journeys of all pieces in play For
example, these cards may indicate a road block and enable a player
taking 70 the card to locate a counter or similar object at tany
selected point on any of the routes shown on the map, e g a road
junction, so as to close said section,to all pieces on the board, with
a view to simplifying the players 75 own journey and impeding the
movement of the other players' pieces The number of such restrictive
hazards may be limited and each further such hazard imposed on any
player may be used to replace any subsisting hazard 80 at the will of
said player Thus a second player taking a hazard card indicating a,
road block may impose such a block at any section of the routes
selected by him and remove any block already located on the board 85
Further, certain others of said hazard cards may each afford a scoring
bonus or penalty, such cards, for example, indicating additional
passengers or goods to be carried, and the corresponding tips or bonus
scores or penal 90 ties, or indicating mishaps with corresponding
penalties.
Said bonus and hazard cards are preferably capable of mixing together
for being taken one at a time in succession on arrival of pieces at 95
starting locations.
With ithe object of enabling a game to be played according to the
aforesaid method within a reasonable time, said bonuses and penalties
may be graded within a predeter 100 mined range For example, the range
may extend between one and five scoring points so as to enable a
number of players to score towards a predetermined total score
selected as the end of the game 105 The playing pieces may comprise a
plurality of mutually distinguished series (e g, series each having a
distinguishing colour) so that a player is enabled to acquire for
score value surrendered, preferably after attaining a pre 11 C
determined score, at least one further piece for playing.
It will be seen that the route sections as shown in the drawing are
unequal and in playing the game according to the aforesaid method 11 M
a route for an indicated journey may be selected by a player in
relation to the varying numbers and sizes of sections of routes
extending between the starting and destination, points 12 (
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* GB784605 (A)
Description: GB784605 (A) ? 1957-10-09
Improvements in the construction of buildings for viewing optically
projected images
7 G 43905 Date of application and filing Complete Specification: March
15, 1956.
No 8124156.
Application made in Switzerland on March 18, 1955.
Ilndex at ac plannnn:-Class 20 ( 1), A( 12: 30)0 International
Classification:-E 04 h, COMPLETE SPECIFICATION
Impro-vements in the Construction of Buildings for Viewing Opticalhy P
Lrojected Images We, MAX FRIART, of Haldenrain 6, Lucerne,
Switzerland, and HERBERT KELLER, of Hirschmattstrasse 24, Lucerne,
Switzerland, both Swiss Citizens, do hereby declare the invention, for
which we pray that a patent may be granted to us, and the method by
which it is to be performed, to be particularly described in and by
the following statement:-
It has become recently customary to show television pictures in
catering establishments, particularly in coffee houses, beer halls or
the like However, hitherto the usual domestic television sets have
been used, the small picture screen of which can be used comfortably
by a few customers only When at interesting performances the public
gathers in front of the receiver, the running of the catering
establishment is severely disturbed thereby.
There are already catering establishments in which projection plants
are provided.
These plants were subsequently fitted into the localities concerned,

so that on the one hand the television screen is badly visible from
certain places, and on the other hand the entire cublic capacity of
the locality is badly utilised as regards the number of the customers
and the comfort thereof.
The invention which overcomes these deficiencies, concerns a catering
establishment with projection plant, particularly for television
pictures.
The same is characterised according to the invention by a ground floor
in which the projector is arranged, by a projection screen which is
raised with respect to the projector, and by an upper storey of at
least three different levels stepped at least one meter with re.
spect to one another and provided with chairs and tables, the
projection screen being visible unhampered from every place in the
audience and the middle ray of vision having at least an angle of
inclination of 30 with respect to the projection screen face.
In the three figures of the accompanying lPsco 35 6 d) drawing an
embodiment of the invention is illustrated, in which:Fig 1 shows a
longitudinal sectional elevation through the centre of the catering 5
f establishment, Fig 2 is a plan view of the ground floor, and Fig 3 a
plan view of the upper storey.
In the ground floor there is the entrance 55 hall (foyer) 1, from
which two entrances 13 lead right and left past the projector cabin 4
wherein the projector is diagrammatically indicated Opposite these two
entrances 13 there are two stairs 2 leading up to a plat W form 3
lying in front of the projector screen wall 5.
The projector screen itself lies at a higher level than the projector,
namely so high that the middle projection ray 14 is inclined about 65
' with respect to the horizontal.
The upper storey has threeamphitheatrical levels stepped at least one
meter one above the others The first and second level are denoted 10,
which are provided with bar 70 stools 15 and bar tables 16 The third
level, denoted 11, is moreover provided with a long fixed table 16,
small tables 17 and chairs 18 having back rests Bar stools 15 and bar
tables 16 are also arranged on the ground 75 floor of the auditorium.
From every point of the auditorium the projector screen is visible
unhampered The middle rays of vision 19 (Fig 1) from the spectators to
the centre of the projection 80 screen all have an angle of incidence
exceeding 30 ' This applies also to the most unfavourable middle ray
of vision which is shown in Fig 3 and denoted 19 u.
Stairs 20 lead alongside the walls from the 85 platform to the three
levels The walking area of a level is illuminated by screened lighting
fittings 12 of any kind desired (incandescent bulbs, fluorescent tubes
etc), which are arranged below the table tops of the next 90 higher
level, so that the spectators are in semi-darkness Below the same

table tops P S ar'r" l I, also coat hangers may be provided, namely
preferably as many coat hangers as there are seats available on the
corresponding lower level.
The kitchen is denoted 7 in the vicinity of which there are three
lifts 8 for the food to be served at the three levels The public
conveniences 9 are on that side of the entrance hall 1 which is
opposite the kitchen 7.
As will be seen from Figs 2 and 3 the outline of the plan of the
catering establishment illustrated forms an octogon which is
symmetrical about the middle projection plane (which coincides with
the plane of Fig 1) but otherwise is non-equilateral Obviously this
plan form may be built into any block of building of any desired e g
rectangular shape the other parts of which may be utilised at will, e
g as cloak rooms The outline of the plan may alternatively be elliptic
or circular.
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* GB784606 (A)
Description: GB784606 (A) ? 1957-10-09
Improvements in vacuum cleaners
A high quality text as facsimile in your desired language may be available
amongst the following family members:
CH338568 (A) DE1188777 (B) FR1148200 (A) US2814358 (A)
CH338568 (A) DE1188777 (B) FR1148200 (A) US2814358 (A) less
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The EPO does not accept any responsibility for the accuracy of data
and information originating from other authorities than the EPO; in
particular, the EPO does not guarantee that they are complete,
up-to-date or fit for specific purposes.
784606 '' Date of application and filing Complete Specification: April
12, 1956.
No 11 131156.
Application made in United States of America on Aug 31, 1955.
Index at acceptance:-Classes 8 ( 1), I 1 A 3 A 3, I 2 (D: J: L: X);
and 8 ( 2), D 3 (E 2 A: F 2 A: X).
International Classification:-A 471 B Old.
COMPLETE SPECIFICATION
Improvements in Vacuum Cleaners We, ELECTROLUX CORPORATION, a
Corporation organized and existing under the laws of the State of
Delaware, United States of America, located at Forest Avenue, Old
Greenwich, State of Connecticut, United States of America, do hereby
declare the invention, for which we pray that a patent may be granted
to us, and the method by which it is to be performed, to be
particularly described in and by the follownig statement: -
The present invention relates to vacuum cleaners and more particularly
to vacuum cleaners of the type in which there is provided means
responsive to the pressure drop through the dust bag for effecting an
automatic control of the cleaner Such control may consist in stopping
the motor, opening the front cover or both.
More particularly the invention consists of a vacuum cleaner including
a housing defining a compartment having an opening, a dust container
insertable into and removable from said compartment through said
opening, a motor fan unit for producing flow of air through said
compartment and through said container therein, a closure member for
said opening, an inlet passage extending through said closure member,
releasable means on said closure member for securing the latter to
said housing, a pneumatic device carried by said closure member for
releasing said releasable means, a differential pressure diaphragm
carried by said closure member, means for subjecting one side of said
diaphragm to the air pressure existing in said inlet passage, means
for subjecting the other side of said diaphragm to the air pressure
existing within said compartment, and valve means openable by
deflection of said diaphragm for communicating the air pressure
existing in said compartment to said pneumatic device.

In order that the invention may be more clearly understood, reference
will now be made to the accompanying drawings, wherein a specific
embodiment of the invention is lPrice 3 s 6 d l shown by way of
example, and wherein: Fig 1 is a cross-sectional view of a vacuum
cleaner in accordance with the invention and is taken on the line 1-1
of Fig 2; 5 a Fig 2 is a front view of the front cover of the vacuum
cleaner shown in Fig 1, Fig 3 is a rear view of the front cover shown
in Fig 2 with a closure plate removed; Fig 4 is a top view of a
portion of the 55 vacuum cleaner shown in Fig 1; Fig 5 is a
cross-sectional view on an enlarged scale taken on the line 5-5 of Fig
1; Fig 6 is a cross-sectional view on an enlarged scale taken on the
line 6-6 of Fig 2; 60 Fig 7 is a cross-sectional view on an enlarged
scale taken on the line 7-7 of Fig 2; and Fig 8 is a cross-sectional
view taken on the line 8-8 of Fig 7 65 Referring more particularly to
Fig 1, reference character 10 designates generally an outer elongated
airtight body A motor-fan unit comprising an electric motor 12 and a
fan 14 is mounted in a bulkhead 16 disposed 70 near the right-hand end
of the body 10, as viewed in Fig 1 The fan is formed with an inlet 18
which communicates with a dust bag compartment formed within the body
10 to the left of the bulkhead 16 Secured with 75 in the open end of
the dust bag compartment is an inner perforated body 20.
A gasket 22 of rubber or other suitable flexible material is carried
by the open ends of the bodies 10 and 20 and includes a por 80 tion 24
which serves as a seat for a dust bag, as will appear hereinafter A
metal rim 26 surrounds most of the gasket 22, except the portion 24
thereof Secured in any suitable manner to the bottom of the outer body
10 85 adjacent to the end carrying the rim 26 is a casting 28 in which
is suitably mounted a caster 30 Casting 28 also includes a lip 32
extending forwardly of the rim 26, this lip constituting one part of a
separable hinge, 90 the other part of which is designated by reference
character 34 and forms part of a front 2 784,606 cover or closure 36
This cover is generally dish-shaped so as to provide a space 38 within
which may be located the automatic controls An inlet conduit 40
extends through the central part of the cover 36 and the outer end of
this conduit is formed as one part of a separable coupling 42, the
other part of which is carried by a suction hose so that the hose may
be detachably connected to the inlet conduit The space 38 is closed by
a removable plate 44 having a central opening through which inlet 40
passes Secured in this opening in the plate is a resilient rubber ring
46 which provides a substantially airtight seal between the plate and
the outer surface of the conduit 40.
Secured to the upper surface of outer body is a channel shaped member
50 shown more particularly in Figs 1 and 8 The web portion 52 of
channel 50 is extended beyond rim 26, as is clearly shown in Fig 1,

and is formed as a hook 54 Pivotally mounted at 56 in the cover 36 is
a latch member 58 which is adapted to engage the hook 54 so as to
retain the cover member in place when the portion 34 of the separable
hinge is received within the portion 32 A spring 60 surround's the
pivot 56 and urges latch 58 into latching position The upper end of
the latch extends through a slot 62 formed in the front cover so as to
be accessible for manual manipulation.
The lower portion of the latch 58 constitutes an arm 64 which is
formed with a slot having an upper wide portion 66 and a lower narrow
portion 68 A pin 70 is secured to a flexible diaphragm 72 which forms
one wall of a power diaphragm chamber 74 formed in the front cover The
other end of the pin carries a head 76 which is of less diameter than
the wider portion 66 of the slot in arm 64, but is of greater diameter
than the narrower portion 68 of this slot Thus, the parts may be
assembled by deforming the 4 flexible diaphragm 72 sufficiently to
permit head 76 to pass through the wide upper portion 66, but the
diaphragm and gravity will normally hold the pin in the lower narrow
portion 68.
Mounted in the front cover 36 below the inlet opening 40 and
designated generally by reference character 78 is a control diaphragm
mechanism This includes a casing forming a diaphragm chamber in which
is disposed a flexible diaphragm 80 The space in the chamber to the
right of the diaphragm, as viewed in Fig, 1, is connected to a tube 82
with an opening formed in an intermediate portion of the inlet conduit
40 (see Fig 3) A tube 84 is connected to the other side of the
diaphragm chamber and extends around the inlet conduit 40 and the
power diaphragm chamber 74 and terminates in an opening 86 formed near
the upper edge of the plate 44 of the front cover As is shown more
particularly in Fig 7, when the front cover is in place, this opening
86 is aligned with the flared end 88 of a tube 90 which is held in
place between a bracket 92 extending upwardly from the front end of
one of the 70 flanges of channel member 50, and a downwardly extending
lip 94 on a channel member 96 which is secured to the top of the outer
body 10 The tube 90 extends through an opening formed in the outer
body so as to 75 communicate with the dust bag compartment therein
Member 96 conceals most of channel and is made of electrical
insulating material.
The casing of the control member 78 in t O cludes a cylindrical
portion 98 within which is movably mounted a valve body consisting of
a sleeve 100 to which is securely fixed a knob 102 which has threaded
engagement with the cylindrical part 98 Sleeve 100 is as formed with
an internal annular shoulder forming a valve seat with which
co-operates a valve member 104, which is urged into sealing contact
with the seat by means of a spring 106 The valve 104 is secured to a

90 stem 108 which extends into the diaphragm chamber so as to be
contacted by the diaphragm 80 if the latter is displaced to the left
The diaphragm is normally urged to the right by means of a loading
spring 110 95 As will be seen clearly in both Figs 1 and 2, the knob
102 is accessible from the exterior of cover 36 for manual rotation
and it will be seen that rotation of the knob moves the latter along
with the sleeve 100 and the valve 104 100 axially of the cylindrical
portion 98 so as to vary the displacement required of the diaphragm 80
before it strikes the stem 108 A tube 112 connects the interior of
cylindrical portion 98 to the interior of power diaphragm 105 chamber
74.
As is shown in Fig 1, a disposable dust bag designated generally by
reference character 114 is disposed within the inner body 20 This bag
includes a relatively stiff cardboard disc 110 116 to which is secured
a bag 118 of porous material, preferably paper The size and shape of
disc 116 is such that it fits on the seat formed by the portion 24 of
the gasket 22, and is formed with a central aperture 115 through which
the inlet conduit 40 extends.
When the front cover is in place, the resilient ring 46 bears against
the central portion of the disc 116 and urges the periphery of the
disc into sealing contact with the gasket por 120 tion 24.
As is shown in Fig 7, the disposable dust bag 114 may be replaced by a
permanent one consisting of a rigid rim 120 of metal or the like to
which is secured the open mouth of a 125 cloth bag 122 Rim 120 carries
a gasket consisting of a ring portion 124 and an outwardly flared
portion 126 When this bag is inserted in the cleaner and the front
cover is in place the ring portion 124 bears against the gasket 130
784,606 784,606 3 portion 24, while the flared portion 126 bears
against the plate 44 of the front cover When the motor-fan unit is
operated it produces a partial vacuum within the body 10 and
consequently atmospheric pressure acts against the outer surface of
the flared portion 126 so as to force it to the left into sealing
contact with the plate 44, and also acts against the left-hand annular
face of ring portion 124 so as to force the ring to the right and into
sealing contact with the gasket portion 24 The pressure drop of the
air passing through the dust bag 122 also exerts a force to the right,
as viewed in Fig 7, tending to hold the ring portion 124 against the
gasket portion 24.
Due to the flexibility of the material of which the gasket on rim 120
is made, the flared portion 126 may be moved to the left, while the
ring portion 124 is moved slightly to the right This construction
enables the gasket to accommodate itself to rather wide variations in
the distance between the plate 44 and the gasket portion 24, which
variations are bound to occur in the mass production of the vacuum

cleaners.
As previously mentioned, a channel member 96 is secured to the top of
outer body 10.
As is shown in Fig 1, the left-hand end of the channel member is
formed with a downward extension 128 which is formed with a shoulder
on the left side thereof, as viewed in Fig 1 The web 52 of channel
member 50 is formed with an opening through which the projection may
be inserted and if the channel 96 is thereafter moved slightly to the
left, the shoulder on projection 128 will be engaged underneath the
web of the channel 50 and this end of the channel 96 will thus be held
securely in place.
An electric switch 130 is mounted within channel member 96, as is
shown in Figs 1 and 5 The switch itself is of the standard toggle type
and includes a pivoted actuating arm 132 As is shown in Fig 5 the top
of 4; channel 96 in the neighborhood of switch 130 is formed with
three parallel slots and the arm 132 extends outwardly through the
center slot The switch itself is enclosed within a switch case which
includes a pair of vertical side walls 134, a bottom wall 136 and one
vertical end wall 138 A switch actuating member includes a pair of
vertical arms 140 joined together at the top by a connecting member
142 The vertical arms 140 extend through the two outer slots formed in
the chamber member 96 and are disposed between the side walls of the
channel and the side walls 134 of the switch case The lower ends of
these arms are formed with cylindrical outwardly extending projections
144 which are received in recesses formed in the side walls of the
channel 96 and the switch case is formed with a pair of projections
146 which, when the case is in position, retain the projections 144 in
their recesses The material of which the arms 140 are made is somewhat
resilient, thus permitting the arms to be deformed towards each other
sufficiently for the projections 144 to pass through the outer slots
in the top of channel 96 and then to snap 70 outwardly when the
projections 144 are brought into alignment with the recesses in the
side walls of the channel 96 Thereafter, the switch case with the
switch 130 therein may be inserted between arms 140 and the 75
projection 146 thereon will assure that the projections 144 remrain in
their recesses The parts are so dimensioned that the case will be
retained in position between the top of the channel 96 and the top of
the outer body 80 when the channel is secured in place The underside
of the top portion 142 is formed with a recess or pocket 148 which is
adapted to receive the end of pivoted arm 132 with a certain amount of
play so that when the 85 switch actuating member is pivoted about the
projections 144 it will move the switch arm 132, which is pivoted in
the switch 130 ' about a different center.
Extending outwardly from one of the arms 90 of the switch actuating

member is a pin 141 which, as is shown more particularly in Figs 5 and
6, enters a slot 143 formed in one end of a rod 145 This rod is
slidably supported in an extension 147 on the inside of 95 channel 96
and a spring 149 urges the rod to the left The spring tends to project
the lefthand end of the rod between the rim 26 and the end of channel
96 and into contact with the plate 44 of cover 36 when the latter is
in 100 place When the cover is removed the spring is able to move the
rod to the left and if the switch is in the "on" position, in which
position pin 141 is in the dotted line position as shown in Fig 6,
this movement of the rod 105 will pivot the switch actuating member
again counterclockwise to the off position illustrated in Fig 6 When
the rod is held in the position shown in Fig 6 by the cover member,
the switch actuating member may be 110 moved back and forth between
the "on" and "off" positions, the pin 141 merely moving back and forth
through the slot 143.
A suitable fastening means, such as a bolt extends through the channel
member 96 115 adjacent to the switch and also through one end of a
handle member 152 so a's to secure both the channel and the handle to
the outer body 10 The channel is formed with an opening 154 through
which the handle 152 120 extends so that the above mentioned end
thereof may be underneath the channel, while the major portion of the
channel is above it.
The handle 152 is made of electrical insulating material which is also
flexible 125 As is shown more particularly in Figs 1 and 4, the
right-hand end of the channel member 96 is formed as a terminal block
for the electrical connections The upper surface of the member 96 at
this end is formed 130 784,606 4 784,606 with a serpentine groove 156
which is adapted to receive an electrical cord 158 The inner end of
the groove 156 terminates in a recess 160 in which are secured a pair
of terminals 162 and 164 respectively -Adjacent to each terminal the
member 96 is formed with a narrow groove 166 A spring contact 168 is
secured to each terminal and extends into the adjacent narrow groove
The cord 158 has a pair of conductors 170 to the end of each of which
is fastened a contact strip 172 These strips are disposed in the
narrow grooves 166 in current carrying relationship with the spring
contacts 168, the resiliency of the latter urging them into such
relationship.
A conductor 174 is connected to the terminal 162 and leads to the
motor 12, while a conductor 176 is connected to the terminal 164 and
passes underneath a portion of the channel 96 to the switch 130
Another conductor 178 leads from the switch underneath the channel and
is connected to a conductor leading to the motor.
A rear portion 182 of the handle 152 serves as a cover member for
enclosing the grooves 156 and 166 and the recess 160 of the terminal

block These ends of both the handle and the member 96 may be enclosed
within a metal case 184 which may have a projecting finger 186 for
holding one of the nozzles usable with the vacuum cleaner A fastening
bolt or the like 188 passes through the case 184, the end 182 of the
handle 152 and the member 96 to secure them to the outer body 10.
In order that the cord 158 may be spaced above the rear end of body 10
sufficiently to permit movement of a bail, to be described below, the
rear straight portion of groove 156 may be inclined upwardly and the
lower surface of portion 182 of the handle may be correspondingly
grooved.
A stamping 190 for retaining a filter 192 is secured in the right-hand
end of the outer body 10, preferably by means of a press fit.
Removably secured to this end of the body is a cord reel designated
generally by reference character 194 This includes three stampings
suitably secured together as by spot welding The first stamping 196
co-operates with the stamping 190 to hold the filter 192 therebetween
Secured to stamping 196 is a stamping 198 which has an inclined flange
portion and a central aperture 200 Secured to this stamping is a third
stamping 202 which likewise has a flange portion and a central opening
204 The two flange portions together form a groove within which the
electric cord 158 may be wound when the cleaner is not in use The
central openings 200 and 204 of the stampings serve as an exhaust
passage for the discharge of air from the vacuum cleaner.
Secured to the lower edge of stamping 198 of the cord reel 194 is an
angle member 206 which may be received in a co-operating angle member
208 secured to the bottom of outer body 10 The upper edge of stamping
198 is formed with a projecting portion 210 which may be engaged by a
bail 212, the ends of 70 which are pivoted in the metal case 184 as is
shown more particularly in Fig 4 Thus, if it is desired to move the
cord reel in order to replace the filter 192, the bail 212 may be
lifted to clear the projection 210 whereupon 75 the cord reel may be
pivoted in a clockwise direction about the angle 208 until the angle
206 may be disengaged therefrom.
The right-hand end of the cleaner may be supported in any suitable
manner, such as by 80 a pair of wheels 214 rotatably mounted on a
transverse axial 216.
The above described device operates as follows: In order to first
place a dust bag in the 85 cleaner, the latch 58 may be depressed
manually so as to disengage it from the hook 54, whereupon the front
cover may be removed entirely from the cleaner by virtue of the
separable hinge 32, 34 Thereupon either a 90 paper dust bag 114, as
shown in Fig 1, or a cloth dust bag 122, as shown in Fig 7, may be
inserted within the inner body 20 The cover 36 is then replaced by
engaging the portions 32 and 34 of the hinge and pivoting the cover 95

clockwise until latch 58 engages hook 54 If a paper bag has been
placed in the machine the inlet 40 of the front cover will pass
through the central opening of the cardboard disc 116 and the
resilient ring 146 surround 10 o ing the inlet conduit 40 will bear
against the central portion of the disc so as to hold the periphery
thereof in sealing relationship with the gasket portion 24 If, on the
other hand.
a cloth bag has been placed in the cleaner 105 the flared portion 126
of the gasket on the bag will bear against the closure plate 44.
while the ring portion 124 will bear against the gasket portion 24, as
previously described, and the inlet 40 will discharge 110 directly
into the open mouth of the bag 122.
The motor 12 is started by pivoting the switch actuating member 142 so
as to throw the switch arm 132 to the "on" position.
With the front cover in place, the rod 145 is 1 l S held in the
position shown in Fig 6, and hence pin 141 on the switch actuating
member may move freely in slot 143 Operation of the fan causes air to
be drawn in through the inlet 40, through the material of the bag 120
118 or 122, and through the holes in the inner body 20 to the inlet 18
The air discharged from the fan passes over the motor 12 and through
the filter 192 and is discharged through the central openings 200 and
125 204.
If a hose is connected to the inlet conduit and dust-ladened air is
conveyed therethrough, the dust will be collected within the lust bag
while the clean air will continue as 130 784,606
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* Legal notice
* Terms of use
* 5.8.23.4; 93p
* GB784607 (A)
Description: GB784607 (A) ? 1957-10-09
Improvements in or relating to fabricated structural elements

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The EPO does not accept any responsibility for the accuracy of data
and information originating from other authorities than the EPO; in
particular, the EPO does not guarantee that they are complete,
up-to-date or fit for specific purposes.
784,607 Date of filing Complete Specification: Dec 8, 1953.
Application Date: Sept 8, 1952.
No 22552/52.
Index at acceptance:-Class 140, A( 2 H: 5 E: 11 H: 16 C).
International Classification:-B 63 b E 04 b.
COMPLETE SPECIFICATION
Improvements in or relating to Fabricated Structural Elements I,
WILFRID SPENCER HOPPER of 28 River Street, Chippenham, in the County
of Wiltshire, a British Subject, do hereby the invention for which I
pray that a patent may be granted to me, and the method by which it is
to be performed, to be particularly described in and by the following
statement: -
This invention relates to fabricated structural elements such as
walls.
The object of this invention is mainly to overcome the difficulty of
bending relatively thick walls and to provide a light structure free
from any tendency to warp Accordingly it cannot be applied to walls of
a metallic substance.
According to this invention a method of fabricating a structural
element such as a wall comprises depositing a mixture of liquid or
plastic adhesive and sawdust or the like on a thin panel or lamina of
non metallic substance Which is held to a curve allowing the mixture
to set and adding applying or superimposing a second panel or lamina
of non metallic substance thus forming a reinforcing layer between the
said panels or laminas.
The element may be fabricated by depositing the said adhesive and the
said sawdust or the like alternately on the first panel, allowing the
sawdust or the like ito be impregnated by the adhesive as the deposits
are made adding the second panel and allowing the whole deposit to set
in position between the panels or laminas of non metallic substance.
A multiple structural element according to this invention may be

fabricated by the use of extra similar panels or laminas of non
metallic substance each with similar intermediate deposits The further
panels or laminas may be added at the same time 'as the fabrication of
the first pair as a structural element or at a later stage.
A structural element according to this invention comprises two panels
or laminae of non metallic substance joined and reinforced by a
deposit being a mixture of an adhesive and sawdust or the like between
them or a plurality of panels or laminae may,be provided in a spaced
apart relationship and joined by layers of the said mixture between
them.
The invention' is particularly applicable for constructing curved
wooden hulls such as a ship's hull and avoids the difficulty of having
to bend a relatively thick board into 'the required shape Referring
to,the example of a ship's hull, the method according to this
invention is applied to the construction thereof by first bending a
thin, board or panel or lamina of non metallic substance ito the
required outside shape of the hull or a substantial part thereof, next
depositing:a layer of the sawdust and glue mixture on the said panel
or lamina and covering this layer again with a thin panel or lamina of
substantially the same shape as the first panel or lamina both the
panels or laminae being of non metallic substance.
It will be seen that it is much easier to bend the thin panels or
laminae and fabricate the complete hull than to bend thick wood into
the shape of the hull or small parts thereof later to be joined
together.
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* 5.8.23.4; 93p

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