US122051A - Improvement in meat-choppers - Google Patents

Description

(z5.) WILLIAM 'PQ'. F.ATTON.

lmprovegmen't ien.-Meat Chopper.

l 122,051. Patented Dec.`19, 18`71 '.j4

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WILLIAM P. PArroN, or HAREIsBUEo., PENNSYLVANIA, Assis-NOE 0E ONE; HALE Hrs Ere-Hr 'ro JAMEs n. PIPER, 0E sAME PLAGE.

IMPROVEMENT IN MEAT-CHOPPERS.

Specification forming part of Letters Patent No. 122,051, dated December 19, 1871.

To all whom it may concern:

Be it known that I, WILLIAM P. PATTON, of the city of Harrisburg, county of Dauphin and State of Pennsylvania, have invented a new and useful Improvement in Meat-Choppers; and I hereby declare that the following is a full, clear, and exact description of the same, reference being made to the accompanying drawing and the letters of reference marked thereon.

The object of this invention is to produce a family meat or vegetable chopping-machine that can be made cheaply, be of compact form, cut rapidly, be easy to operate, simple in construction, and easy to disconnect in order to remove the chopped meat and clean the machine.

In the drawing, Figure l represents a side elevation of the device. Fig. 2 is a front elevation of the same. Figs. 3, 4, 5, and 6 are details of the working parts. Figs. 7 and 8 are enlarged views of some parts.

In Figs. 4 and 2 the base-ring is shown at F. This is an annular ring of metal, having a flange turned up at its outer edge, as shown in Fig. 2, for the purpose of retaining in place the wooden chopping-block W, that fits into the recess thus formed. Upon the outside of the ring F a piece, g, is cast. This piece has a small iange turned up on each of its side edges, and answers as a base upon which the upright piece A a stands, and to which it is rigidly attached by rivets or other suitable method, as seen at g,'Figs. l and 4. The upright piece A a is designed to act as a supportin g-frame, and carries the operating mechanism of the machine. As will be observed, it consists of two parts or pieces, A, the lower part, and a, the upper part, connected together by a lap-rule joint, as is shown in Fig. 1. This method of constructionpermits the upper part a to be turned back at right angles to the part A, if desired; but is prevented from moving forward out of a vertical line by the abutting shoulders of the rule-joint. Both the pieces Aal have ribs or flan ges formed on their front edges, to obtain suitable lightness and strength, their transverse section being of a T-form, as shown at A, Fig. 4. Upon the upper part a, a lip or projecting piece, 4, is formed, that extends downward in contact with the side of the piece A. A hole for the reception of a dowel-pin is drilled through the lip 4 and piece A, so that, upon the insertion of a wire pin, the parts A a are rigidly secured together. The upper piece A has its upper part curved so as to project forward a proper distance, and terminates in a flattened boss, 5. This upper projecting part of a is on aline parallel with the plane of the base-ring F. Another projecting piece, ab, is formed on the piece a., and terminates in a flattened boss, 6. (See Fig. 1.) The piece .e is connected to the upper projecting part of a by the curved brace t. About the center of this brace a boss, Z, is formed. It is designed to assist in supporting the shaft d, a hole of proper size perforating it for the reception of the said shaft. A similar boss is formed in the upright portion of the piece a, at a point opposite the boss Z. This supports the outer end of shaft d. (See Fig. l.) Upon the inner end of shaft (l a heavyrimmed crankwheel, b, is rigidly fastened. A transverse section of the same is shown in Fig. 5. A projecting boss is formed on its inner face through which the shaft d passes, this boss ruuning against the face of the boss Z. The rim of the wheel bis rounded, and is made to overhang on the side next the curved brace t, so as to leave a plane face or surface on the front side. The bosses 5 6 are perforated through their center with holes of proper size, to receive the verticalshaft or rod C. This shaft C carries the choppingknife e upon its lower end, and the length of the projecting pieces th at are furnished with the bosses 5 6 must be proportioned to the s ize of the base-ring F, so as to bring the shaft C directly in the center of the chopping-block W, that is bedded in said ring.

The manner of connecting the cutting-knife e to the shaft C is as follows: A thread is cut on the lower end of shaft C for the accommodation ofthe threaded lug 0. (See Figs. 2 and 8.) This lu g has a round shank formed on its side, that is designed to neatly fit a hole centrally drilled in the k11ife-stockn,and is secured in place on said knife-stock by riveting or by a nut, as may be preferred. It is essential that the lug 0 be permitted to turn in the knife-stock a; at the same time a secure connection is maintained therewith. The knife c is made preferably' of thin steel-plate, and is rigidly secured by riveting to the stock n, as shown in Fig. 8. A jam-nut, S, is provided,

and is placed on the threaded part of sha-ft C, so

as to bear against the top face of the lug O. It

is constructed with a flange or projection on its upper part, that overhangs the knife-stock n in such a manner as to permit said stock to oscillate slightly on the lug O. The Lipper end of the shaft C is reduced in its body so as to form a shoulder upon which the block V rests, said block being drilled to fit the reduced part in such manner as to permit the shaft C to turn in it. A threaded hole is formed in the block V at right angles to the hole through which the shaft C passes. AThe form of the top of the block is shown in a view given at Fig. 6. The shaft C is connected to the crank-wheel b by a pitman, c c. This pitman is given a yokeform, as shown in Fig. 2. The boss 5 of the upper projection of piece@ passes through the yoke-connection c c, and so permits the upper end of said yoke-connection to be secured by a set-screw, l,to the block V, (see Fig. 1,) and also in the enlarged view given at Fig. 9. A piece of leather is placed between the end of the set-screw l and the body ofthe shaft C, against which the said screw is forced with a proper pressure for a purpose that will be hereafter shown. Upon the upper end of the shaft C, immediately above the block V, the ratchetwheel D is securely fastened. A boss, centrally formed and projecting` from its lower face, bears against the upper face of the block V without preventing the rotation of the shaft C. The upper face of the ratchet-wheel D has ratchet-teeth of proper size cut around` its edge, as shown in Figs. l, 2, and 6. The yoked pitman c c has an arch, fr, formed on its upper part, as seen in Figs. l and 2. This arch r is intended to carry the pawl Im, (see Fig. 2,) and as said arch projects a proper distance above the upper face of the ratchetwheel D, and is in a line with its outer edge, it is evident that the pawl m will properly mesh into the ratchet-teeth. The free end ofthe pawl m is curved up, as shown in Fig. 2. A hook or projection is also formed on the arch r, immediately below it so that a continuous gum-band spring, 2, can be stretched over the projection and the end of the pawl, and thus hold said pawl m in yielding connection with the teeth of the wheel D. The lower end ofthe pitman c c is attached to the crank-wheel b by a threaded setscrew passing through a hole in the pitman and screwing tightly in the wheel at a proper distance from its center, to give` the shaft C the proper movement. A crank-handle, G, is secured to the end of the shaft d, that projects through the boss in the part a, of the upright frame A a, and is designed to communicate motion to the machine. The base-ring F has a tin-plate or sheet metal ring formed on or placed over it, as shown in Figs. l and 2. Said ring or hoop B constitutes the containing-vessel in which is placed the meat or vegetables to be chopped. It should be of a proportionate height, and being merely forced down' over the outside of the ring F, can be easily removed when it is required.

The operation of the machine is as follows: Meat or vegetables being placed in the tub B, the handle of the machine is revolved; the crankwheel b causes the pitman cto communicate aV vertical reciprocatory motion to the shaft C, and consequently to the knife e. Every stroke of the pitman c c oscillates the arch r, above the setscrew l, that point being the center of motion or fnlcrum of said arch, and as the pawl m is pivoted above the screw 1, it is caused to vibrate and take a tooth in the ratchet-wheel D, and thus cause a limited axial movement of the shaft C at every revolution of the crank-wheel b. The feed or rotative movement of the knife, as just described, can be made to take place either when the knife is at the bottom of the tub B, or at the moment when it has attained its full elevation, by simply turning the crank G veither toward or frgin the operator. The machine works best when the feed movement is effected above or at the top of its stroke. The feeding can be changed to allow the machine to be run either toward or from the operator, and change on the upper center, by cutting the teeth of the ratchet-wheel either right or left-handed, (that is, sloped in either direction.) The pawl must be pivoted on either side of the arch to suit the relative cut of the teeth. The set-screw l bearing against the leather plug forces it against the shaft C, and thus produces the requisite friction to hold the shaft C stationary while the pawl is moving back to take a tooth in the wheel D. If the machine is rotated to feed when the knife is at the top of its stroke, the pawl changes from one tooth of the wheel to the other. When the knife is down on the chopping-block W, the bite of the knife on the block thus aids to hold the shaft from moving while the pawl is changing teeth. The part a of the upright frame A can be swung back clear of the tub B by placing the knife e on the upper center, thus permitting the contents of the tub to be removed without hindrance. By removing the tin ring, the chopping-block can be scraped and properly cleaned without trouble.

The oscillation of the knife e on the lug O is provided to insure the knife coming down squarely on the block in case said block should become uneven by use, or the knife be ground away more at one end than the other. It also facilitates the cheap construction of the machine, as it dispenses with any critical adjustment of the upright part A a in regard to the chopping-block W, which would he necessary if the knife was rigidly secured at a right angle to the shaft C.

Having given a full, clear, and exact description of my invention, and pointed out its utility, what I claim as new, of my invention, and desire -to secure by Letters Patent of the United States, 1s-

l. The construction of the frame-pieceAa, with the rule -joint herein shown and described, and for the purpose specified.

2. In a meat-chopper, the yoke-pitman c c, when it is constructed and combined with the shaft C, block V, connecting-pin l, crank-wheel b, shaft el, frame-piece a, and crank G, so as to operate the shaft C vertically, as herein described.

3. The combination of the shaft C and knife e with the hinged-frame A a, ratchet-wheel D, blockV V, pawl m, yoke-pitman c, crank-Wheel b, and its block V, shaft C, and oscillating knife e, substansha-ft d, t0 give an axial rotative motion to the tially as and for the purpose. set forth. knife-shaft O, substantially as shown, und for the WM. P. PATTON. [L. 8.] purpose specified.

4. The combination of the. base-ring F, frame Witnesses: A a, crank-Wheel b, shaft d, yoke-pitman c, arch- ROBERT A. JOHNSTON, piece i", and pawl m, with the ratchet-wheel D, R. J. FLEMING. (25)

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