US718944A - Bread-cutter. - Google Patents

Description

..PATENTED JAN. 20, 1903.

A; ANDERSON.

BREAD CUTTER.

APPLICATION FILED MAY 10, 1902.

N0 MOD "L.

4 will/1111111911236 4 i 1 w. J w M 1 4 6 e a 6 w m UNlTED STATES PATENT OFFICE.

ARWID ANDERSON, OF CAMBRIDGE, MASSACHUSETTS, ASSIGNOR TO FREDRIK PETERSON, OF BOSTON, MASSACHUSETTS.

BREAD-CUTTER.

SPECIFICATION formingpart of Letters Patent No. 718,944, dated January 20, 1903.

Application filed May 10, 1902.

T0 ctZZ whom it may concern.-

Be it known that I, ARWID ANDERSON, of Cambridge, county ofMiddlesex, and State of Massachusetts, have invented an Improvement in Bread-Cutters, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention relates to a machine for cutting bread or other food into slices of equal thickness by means ofa rotating knife, in connection with means for automatically feeding the material to be cut a measured distance upon each rotation of the knife.

For an understanding of my invention ref erence is made tothe accompanyingdrawings, in which- Figure 1 is a side elevation of my machine. Figs. 2 and 3 are elevations of opposite ends thereof. Figs. 4 and 5 are enlarged crosssectional views of a portion of the feeding mechanism in different positions.

As shown in the drawings, two end frames 1 and 2 are provided, which are connected by two pairs of parallel rods 3 and 4. A shaft 5 is journaled in bearings 6 and 7 in the upper ends of the frames 1 and 2, respectively, and the ends of said shaft extend beyond said frames. A knife 8 is secured to one end of the shaft 5, and a crank 9 is secured to the opposite end thereof. The knife 8 is arranged so that its cutting edge is eccentric to the axis of the shaft 5, said edge extending from said axis somewhat in the form of a spiral. A balance-wheel 10 is secured to a vertical shaft 11, which is provided with a worm-gear 12 at its upper end. A gear 13, having obliquelyarranged teeth, is secured to the shaft 5 and is arranged to mesh with the worm 12, so that the balance-wheel 10 will be rotated when the shaft 5 is driven. A smooth-surfaced rod 14 is reciprocably mounted in the frames 1 and 2, and one end of said rod is in a position to be engaged by the face of a cam 15,which is secured to the shaft 5,adjacent the gear 13. A spring 16 is arranged on the rod 14 between the frame 2 and a stop-Wire 17 in the rod, so that said spring acts constantly to force said rod toward the face of the cam 15. A stop-cam 18 is secured to the frame 2 and Serial No.106,823. (No model.)

is adapted to be adjusted so as to limit the distance which said rod may be moved by its spring 16. A follower 19 is provided with arms 20, which rest on the guide-rods 3, and said follower is provided with two apertures in its upper end through which the shaft 5 and rod 14 pass, so that said shaft may rotate freely therein and the follower slide freely on both the shaft and rod, while they act as guides therefor. A dog 21 is loosely secured to the follower 19 by means of a bolt 22, which passes through an aperture in the lower end thereof, the diameter of said aperture being slightly greater than the diameter of the bolt, as shown in Figs. 4 and 5. A spring 23 is interposed between one side of the dog and the head of the bolt 22 and presses the opposite side thereof against a shoulder 19 on the follower, the surface of which is disposed obliquely to the central line of the rod 14, so that said spring 23 will act to force the dog 21 into a corresponding position with respect to said rod. The dog is provided with an aperture 21 in its upper end, through which the rod 14 passes, said aperture being of slightlygreater diameter than said rod. Two arms or handles 24 are secured to the dog, and a stop 25 is secured to the follower 19 in such a position that the dog cannot be swung away from the follower to a point which is beyond a vertical position with respect to rod 14.

Having described the construction of my machine, the operation may be described as follows: The loaf of bread or other material which is to be sliced is placed on the transverse rods 4, with one end against the follower 19 and the opposite end projecting past the path of the knife 8, the follower having previously been moved so as to permit the loaf to be arranged in this position. 7 The shaft 5 is then rotated in the direction of the arrow in Fig. 2, and as it rotates the knife revolves and cuts off the end of the loaf which projects across its path. As the shaft 5 is rotated the cam 15 thereon is also rotated, so that its face engages the end of the rod 14 and slides the same longitudinally toward the knife and in the direction of the arrow in Fig. 4. As the spring 23 normally forces the dog 21 into the oblique position shown in Fig. 4, the Walls of the aperture 21 therein will engage or bite the rod 14, so that said rod cannot slide through said aperture when it is moved toward the knife. The result will be that the dog will be moved with the rod 14, which in turn will slide the follower 19 on the guide-rods 3 and shaft 5 toward the knife, moving the loaf of bread with it a distance corresponding to the distance which the rod 14 is moved by the cam 15. The cam 15 is arranged in such a position that this movement will take place after the end of the knife has passed the loaf and moved to the position shown in Figs. 2 and 3, so that the loaf will be moved forward the desired distance before the knife again swings into engagement with the loaf. As soon as the highest part of the cam 15 passes the end of the rod 14 the spring 16 will force the rod back to its initial position in the direction of the arrow in Fig. 5. This movement will cause the dog 21 to swing back with the rod until it engages the stop 25, and as the movement of the dog to this position causes the same to release its hold on the rod the follower 19 will not be moved back with the rod 14, but will remain in the position to which it has previously been advanced. The rod 14 is moved away from the knife until the stop-wire 17 engages the stop-cam 18, and then the spring 23 will force the dog back into the position shown in Fig. 4 and the operation above described is repeated.

The thickness of the slices to be out are determined by simply rotating the stop-cam 18, thus varying the distance which the rod 14 may be moved back from the position to which it is forced by the cam 15. Obviously the greaterthe distance which the rod 14 is moved the greater will be the thickness of the slices which will be out. After the loaf has been completely sliced the follower is drawn back by the handles 24 to the position desired, the pull on the handles throwing the dog back into engagement with the stop 25 and out of locking engagement with rod 14 and preventing the dog from interfering with the movement of the follower.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A machine for the purpose described, comprising end frames, a rotary driving-shaft mounted in said frames, a knife secured on said shaft, a rod reciprocably mounted in said frames, means for reciprocating said rod, a follower slidably mounted on said rotary driving-shaft, an automatic clutch carried on said follower through which said rod passes, and means for causing said clutch to engage said rod to move said follower'therewith in one direction and allow said rod to pass through it in the reverse direction, substantially as described.

2. A machine for the purpose described, comprising end frames, a rotary driving-shaft mounted in said frames, a knife and a cam secured on said shaft, a rod reciprocably mounted in said frames, said rod moved in one direction by said cam, a spring for moving said rod in the reverse direction, a follower slidably mounted on said rotary driving-shaft, an automatic clutch carried on said follower through which said rod passes, and means for causing said clutch to engage said rod to move said follower therewith in one direction and allow said rod to pass through it in the reverse direction, substantially as described.

3. A machine for the purpose described, comprising end frames, a rotary driving-shaft mounted in said frames, a knife secured on said shaft, a rod reciprocably mounted in said frames, means for reciprocating said rod, a follower slidably mounted on said rotary driving-shaft and having a shoulder, a dog carried on said follower through which said rod passes, a bolt secured to said follower and loosely supporting said dog, and a spring on said bolt for causing said dog to normally bear against said shoulder in an oblique position with respect to said rod and engage the same to move said follower therewith in one direction and allow said rod to pass through it in the reverse direction, substantially as described.

4. -A machine for the purpose described, comprising end frames, a rotary driving-shaft mounted in said frames, a knife and acam secured on said shaft, a rod reciprocably mounted in said frames, said rod moved in one direction by said cam, a spring for moving said rod in the reverse direction, an adjustable stop for varying the distance which said rod may be moved by said spring, a follower slidably mounted on said rotary driving-shaft, an automatic clutch carried on said follower through which said rod passes, and means for causing said clutch to engage said rod to move said follower therewith in one direction and allow said rod to pass through itin the reverse direction, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ARWID ANDERSON.

Witnesses:

LOUIS H. HARRIMAN, H. B. DAVIS.

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