The document discusses different types of machinery used in tool rooms including hydraulic lifts, travelators, and elevator control systems. It describes how hydraulic lifts use pistons and hydraulic oil to lift cabins at speeds up to 200 feet per minute. Travelators are used commercially to increase customer flow and density. Elevator control systems aim to bring lifts to the correct floor safely and comfortably using inputs like sensors, buttons, and key controls and outputs that accelerate, decelerate, and travel at safe speeds. The document provides details on single automatic, selective collective, and group automatic elevator operation types.

1. UNIT-1
MACHINERIES

19. HYDRAULIC LIFT
 The hydraulic elevators are classified into four types
such as holed, hole less & roped elevators.
 A hydraulic elevator is power-driven by a piston that
moves within a cylinder.
 The piston movement can be done by pumping
hydraulic oil to the cylinder.
 The piston lifts the lift cab easily, and the oil can be
controlled by an electrical valve.
 The operating of these elevators can be done at
speeds up to 200 ft or 61 meters for each minute.

54. SPECIAL FEATURES REQUIRED FOR
LIFTING ARRANGEMENT AND
INSTALLATION

55. Uses of Travelators
 They used to increase customer density and thus
help boost sales
in buildings.
 used for commercial purposes.
 They ensure a smooth traffic flow.
 They help channel passenger flows.
 They have a high transportation capacity.
 They are open and convey people continuously.
 They ensure that all floor are frequented evenly.
 Travelators should be provided as a matter of
principle whenever
shopping or cabbage carts are to be transported.

56. Elevator Control
System

57. Aims of the control system
• To bring the lift car to the correct floor.
• To minimize travel time.
• To maximize passenger comfort by providing a smooth
ride.
• To accelerate, decelerate and travel within safe speed
limits.
Types of elevator control systems
1- Single Automatic operation:
 First automated system w/o single call button on each
floor and single button for each floor inside car.
 Called if no one is using it.
 Passenger has exclusive use of the car until rip is
complete.
2- Selective collective operation

58. 3- Group automatic operation
 For large buildings with many elevators which are
controlled with programmable microprocessors to
respond.
Elevator control system components:
The elevator as a control system has a number of
components. These can basically be divided into the
following:
1. Inputs.
2. Outputs.
3. Controllers.

59. Inputs, which include
A- Sensors:
1.Magnetic and/or photo electric
2. Infrared
3. Weight sensor (OverLoad Device)
4. PVT (Primary Velocity Transducer)
B- Buttons:
1.Hall Buttons
2. Floor Request Buttons
3.Open Door Button
4.Emergency Stop Button
5.Emergency Bell Button
6. Registration panel

60. C- Key Controls:

62. Types of Tool room Machines
Grinding Machine
Milling Machines
Shaping Machine
Slotting Machine
Bandsaw Machine
Hacksaw Machine