US399790A - Meat-cutter - Google Patents

Description

(No Model.)

A. SHEPARD. MEAT CUTTER.

"No. 399,790. Patented Mar. 19, 1889.

N ETERS. Phomtnno hor, Washinglun, n. c.

ihvirnn STATES AHOS SHEPARD, OF PLANTSVILL I,

ASSTGNOR TO THE PECK, STOlV AND \VILC( X COMPANY, OF SOY'JIIINGTON, CONNEUFICU'I.

MEAT-CUTTER.

SPECIFICATION forming part of Letters Patent No. 399,790, dated March 19, 1889.

application filed August 1, 1883.

To (all whom it may concern:

Be it known that l, AMOS SHEPARD, a citizen of the United States, residing at Plantsville, in the county of Ilartford and State of Connecticut, have invented certain new and useful Improvements in Meat-Cutters, of which the following is a specification.

My invention relates to improvements in meat-cutters of the class which have a case and a rotatory device provided, respectively, with stationary and moving fOl'Clllg-llbS, a perforated plate and knives in contact with said plate, an example of which classis found in the patent to Calvin Adams, No. 32,852, of July 23, 1861, my present invention being in the nature of an improvement upon the machine of said Adams patent.

The objects of my improvement are to provide for a better construction of the parts, and to increase their efficiency.

In the accompanyingdrawings, Figure l is a plan view of my machine with the crank? hub and portion of the shaft in horizontalsee tion. Fig. 2 is an elevation looking at the discharge end of the machine. Fig. 3 is a like view with the shaft and its appendages removed. Fig. 4 is a perspective view of the shaft, the moving forcing-ribs, and the perforated plate. Fig. 5 is a horizontal section of-the case on line 0041: of Fig. 3. Fig. 6 is an elevation of the detachable ring, which constitutes a part of the casev Fig. '7 is an edge view of the same. Fig. 8 is an elevation of half of the detachable ring with a different form of knives, and Fig. I is an edge view of a portion of said ring.

A designates the case, provided with a hopper, B, and with a cylindrical flange, a, at its discharge end. The interior of the case is provided with stationary forcing-ribs I) and with knives c for contact with the inner face of the perforated plate. The grooves or spaces between the ribs 1) of the case are gradually increased in. effective area toward the discharge end to form chambers, into which the meat is forced on its passage to the perforated plate- In order that the knives 0 may be set within the cylindrical flange a with the flange projecting beyond said knives, and also to enable the knives to be ground to a plane Serial No. 281,664. (No model.)

ground to a proper level when the ring isremoved, and thereby insure a proper contact of the knives with the inner face of the perforated plate. I provide said ring C with a steady-pin, (I, Fig. 7, which enters a hole in the case, so that when the ring is in place, as shown in Figs. 3 and 5, the stationary ribs 1) and the spaces or grooves between them are continuous. I prefer to form the acting-face of the stationary forcing-ribs bthat is, the face toward which the moving ribs ad vance on a spiral of rather gradual inclination; but the inclination may be greater or the face of said ribs may be longitudinal-that is, parallel to the axis of the case.

D designates the shaft or rotatory device, having a small journal at one end which takes its bearing in the small end of the case, the projecting end of the shaft being provided with a crank or driving device, E. I secure said crank in place by means of a thumb-screw,f, Fig. 1, the shoulder of which bears against the hub g of the crank, while the other side of said crank-hub rests against the case at the shaft-bearing, as shown in Fig. 1, whereby the shaft may be adjusted to draw it endwise toward the small end of the case by turning said thumb-screw.

The shaft or rotatory device is provided with moving forcing-libs 71. As shown, two of these ribs are shorter than the others.

F designates a perforated plate with perforations of any desired form, the perforations in the plate being farther from the axis of the shaft than the highest points of said moving forcing-ribs, and said plate may be cast upon or secured in place at the discharge end of the shaft, so as to rotate with it, as shown. The ribs 7b of the forcer and its core or cen tral portion gradually thicken toward the discharge end. The grooves or spaces between the forcing-ribs gradually decrease toward the discharge end of the case and vanish at the junction of the moving forcing-ribs and perforated plate, while, as before stated, the spaces between the stationary forcing-ribs of the case gradually increase in area as they approach the same point. The inner face of the perforated plate is true and smooth, and the knives c at the end of the stationary forcing-ribs are ground to fit the inner face of said perforated plate. This face may be pressed as hard as may be desired against the knives c by turning the adjusting thumbscrew f at the crank end of the shaft. The bore of the case is cylindrical, and the moving forcing-ribs have their edges or perimeter formed so as to describe a cylinderthat is to say, they project a given distance from the axis of the shaft for their entire length-and this perimeter meets the inner face of the perforated plate at an angle, as shown most clearly in Fig. 4c, the angle, illustrated, bein g a right angle.

Only one side of the perforations in the plate have a cutting action, and that is the side against which the meat is pressed. If

desired, grooves may be formed on the inner face of the perforated plate which lead to the perforations on. the non-cuttin side, as illustrated, for a part of the perforations by the grooves k in Fig. 4. Upon turning the crank and shaft the meat is acted upon by the stationary and moving forcing-ribs, the two acting as a forcing mechanism for driving the meat toward the discharge end of the machine. At the same time, as the spaces between the moving ribs decrease, the meat is gradually forced farther from the center of the shaft and firmly pressed into the chambers between the knives c at the end of the case, portions of the meat also being forced into the perforations in the perforated plate, and as the plate rotates the portions thus entering the perforations in the plate are cut off by the sharp edges of the plate and the knives 0, against which the plate acts. Other portions follow, and the meat is discharged through the perforations in its reduced form substantially the same as in the Adams machine, before named. If large pieces of meat are placed within the hopper, they will be disintegrated by the action of the stationary and moving forcing-ribs sufficiently to distribute the meat to the several chambers between the knives c at the end of the case and to cause it to pass readily through the plate.

In Figs. 3 and 5 I have illustrated the knives c as formed integral with the ring 0; but, if

desired, the knives maybe formed separately and set into said ring, as illustrated in Figs. 6 and 7, or as in Figs. 8 and 9. In the latter form they are let. flatwise into recesses formed in the face of the ring O and held in place by a screw or screws, and are made long enough to have their ends project beyond the forcingribs, as indicated in Figs. 8 and 9, the broken line on in said figures indicating the face of said rib. In this construction the face of the ring is ground true and square after the knives are secured thereon, thereby truing that face of the knives. hen the knives become dull, they may be detached and ground at the ends only and then replaced, the grinding off of the ends not changing their fit against the inner face of the plate.

I claim as my invention 1. In a meat-cutter having a perforated plate and knives in contact with said plate and a case provided with stationary forcingribs, the rotary forcing device whose ribs and core gradually thicken toward the discharge end, while the spaces between its forcing-ribs gradually diminish toward the discharge end of the case and substantially vanish at their junction with the perforated plate, substan' tially as described, and for the purpose specified.

2. In a meat-cutter having a case, stationary and moving forcing-ribs, and a rotatory perforated plate, a cylindrical flange, a, at the discharge end of the case, and the separatelyformed ring C, fitted within said flange and having the knives c 011 one side of said ring for contact with the perforated plate, substantially as described, and for the purpose specified.

3. In a meat-cutter having a case provided with stationary forcing-ribs and knives at the discharge end of said ribs, a forcing device within the ribs of the case, and a perforated plate at the end of said forcing device whose perforations are outside the greatest diameter of said forcer, while the inner face of said perforated plate and perimeter of said forcer meet each other atan angle, substantially as described, and for the purpose specified.

AMOS SHEPARD.

Witnesses:

HA'ITIE L. SHEPARD, STEPHEN WALKLEY.

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