Automatic toaster

• US 4,044,660 A
• Filed: 03/08/1976
• Issued: 08/30/1977
• Est. Priority Date: 03/08/1976
• Status: Expired due to Term

• Current Assignee: Marvin Glass & Associates
• Original Assignee: Marvin Glass & Associates
• Inventors: Morrison, Howard J., Brand, Derek A., Montague, Douglas P.
• Primary Examiner(s): Wilhite, Billy J.
• Application Number:
  US05/664,918
• Time in Patent Office: 540 Days
• Field of Search: 99/387, 99/389, 99/390, 99/326, 99/391, 99/386, 99/343, 99/443 C, 221/253, 219/214
• US Class Current: 99/326
• CPC Class Codes: A47J 37/0857 with bread supports or heating means movable during the toasting operation

Abstract

An automatic toaster for continuously toasting bread slices one at a time, from the bottom of a generally vertical stack of bread slices. The bread toaster includes a housing having a discharge opening at one end and a hopper at the other end for receiving a vertical stack of bread slices. A conveyor feeds the bread slices one at a time between a pair of heating elements whereafter the bread is ejected through the discharge opening in the housing. The pair of heating elements are mounted above and below the conveyor and are movable toward and away from the conveyor so the amount of toasting on each bread slice can be determined according to the preference of the user. An automatic counter is connected to the conveyor for counting the number of slices being toasted and for turning off the toaster after a predetermined number of slices of toast have been made. A mechanism is provided for intermittently lifting the stack of bread from the second to the bottom slice thereof to facilitate moving the lowermost slice from the stack.

Claims

1. A toaster for automatically toasting a predetermined number of bread slices or the like comprising:

a housing including a discharge station at one end;

a loading station on the housing generally at an end opposite from the discharge station for supporting a generally vertical stack of bread slices;

conveyor means mounted on the housing for continuously feeding the bread slices one at a time from the bottom of the stack through the housing to the discharge station;

a pair of heating elements mounted on the housing between the loading station and the discharge station, on either side of the conveyor means; and

lifting means mounted on the housing adjacent the loading station on the side thereof in the direction of travel of the conveyor means for engaging and elevating the slices of bread above the lowermost slice, said lifting means including cam means actuated by the movement of said slices of bread on said conveyor means into engagement therewith for raising all but said lowermost slice relative to the conveyor to facilitate feeding of only the lowemost slice between the heating elements and to the discharge station.

2. The toaster of claim 1 including a counter in driving relationship with said conveyor means for counting the number of bread slices emerging through the discharge station and switch means connected to said heating elements and said conveyor means for energization thereof, said switch means being connected to said counter means for automatically terminating power to the heating elements and the conveyor means after a predetermined number of bread slices have been discharged from the discharge station.

3. The toaster of claim 1 wherein said heating elements are movably mounted for movement in a generally vertical direction toward and away from said conveyor means and includes a darkness gauge interconnected to said movable heating elements for moving said elements toward and away from said conveyor means at presettable increments to vary the amount of toasting for the bread slices.

4. The toaster of claim 1 including return means to move the vertically stacked bread slices in the direction opposite the travel of the conveyor means and away from the lifting means after said lowermost bread slice is removed from the bottom of the stack.

5. A toaster for automatically toasting a predetermined number of bread slices or the like comprising:

a housing including a discharge station at one end;

a loading station on the housing generally at an end opposite from the discharge station for supporting a generally vertical stack of bread slices;

conveyor means mounted on the housing for continuously feeding the bread slices one at a time from the bottom of the stack through the housing to the discharge station;

a pair of heating elements mounted on the housing between the loading station and the discharge station, on either side of the conveyor means; and

lifting means mounted on the housing adjacent the loading station on the side thereof in the direction of travel of the conveyor means for engaging and elevating the slices of bread above the lowermost slice, said lifting means including cam means comprising a generally vertical cam plate and a pair of generally horizontally directed opposed pins on the housing in engagement with a pair of canted slots formed in the cam plate which cause the cam plate to raise upwardly when engaged by the moving vertically stacked bread slices to raise all but the lowermost slice relative to the conveyor to facilitate feeding of said lowermost slice between the heating elements.

6. The toaster of claim 5 including return means to move the vertically stacked bread slices in the direction opposite the travel of the conveyor means and away from the cam plate after said lowermost bread slice is removed from the bottom of the stack.

7. The toaster of claim 5 including a notch formed at the lowermost end of each slot for maintaining the cam plate in its uppermost position to facilitate toasting of other items which are substantially thicker than a single slice of bread.

8. A toaster for automatically toasting a predetermined number of bread slices or the like comprising:

a housing including a discharge station at one end;

a loading station on the housing generally at an end opposite from the discharge station for supporting a generally vertical stack of bread slices, said loading station being slightly elongated in a direction between the discharge station and the loading station to permit the vertically stacked bread slices to move horizontally;

conveyor means mounted on the housing for continuously feeding the bread slices one at a time from the bottom of the stack through the housing to the discharge station;

a pair of heating elements mounted on the housing between the loading station and the discharge station, on either side of the conveyor means; and

lifting means mounted on the housing adjacent the loading station on the side thereof in the direction of travel of the conveyor means for engaging and elevating the slices of bread above the lowermost slice, said lifting means including cam means comprising a generally vertical cam plate and a pair of generally horizontally directed opposed pins on the housing in engagement with a pair of canted slots formed in the cam plate which cause the cam plate to raise upwardly when engaged by the moving vertically stacked bread slices to raise all but the lowermost slice relative to the conveyor to facilitate feeding of said lowermost slice between the heating elements.