• Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Be the first to comment
    Be the first to like this
No Downloads

Views

Total Views
181
On Slideshare
0
From Embeds
0
Number of Embeds
0

Actions

Shares
Downloads
3
Comments
0
Likes
0

Embeds 0

No embeds

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
    No notes for slide

Transcript

  • 1. Judith Lievens
  • 2. History
  • 3. History
    • Why do people toast bread?
    To preserve it
    To makeitcrunchier
    To makeitsweeter
    To makeit perfect for spreads
  • 4. History
    • Before the toaster bread was toasted over an open firewith the help of a variety of simple tools.
    • 5. 1900s: electricity in all householdstherecame a wave of technologicalinnovationsand a demandforhouseholdappliances, one of themthe toaster
    • 6. First: embeddedheating system
  • History
    • March1905Nichrome (Albert Marsh)
    Surface of toast needs to beheatedabove 154°CNeed of a wirethatreaches high temperatures without beingdamaged of starting a fire.
     Nichrome(alloy of nickel and chromium)
  • 7. History
    • Numerous prototype electric toasters and in1909 : firstelectric toaster (Frank Shailorfor General Electrics)
    This was the firstcommerciallysuccessfulelectric toaster
    Problems:
    When is the toast ready?
    Flippingwithyour handsburns!
  • 8. History
    • 1913 Lloyd and HazelCopeman: ‘‘automatic toaster’’Turning the toast without touchingit
    Five toaster related
    patents ontheirnames
    Manycompaniespaidroyalties to Copemanor
    findotherways to turn
    the toast.
  • 9. History
    Problem: burnt toast
    Byincorporatingsprings and a variable timer: pop-up toaster onMay 29, 1919 by Charles Strite
    PatentedonOctober 18, 1921
    Manufactured and sold to the Childs restaurant chain
    Redesign in 1926: “the Toastmaster” available to the public
  • 10. History
    Major breakthrough in 1928presliced-loaf and sealed-bagprocessby Otto Frederick Rohwedder
    1930sliced Wonder Bread
    1933 more slicedthanunslicedbread
     Strite’spop-up made sensenow and became a standard in American households