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Publication numberUS517148 A
Publication typeGrant
Publication dateMar 27, 1894
Filing dateSep 19, 1888
Publication numberUS 517148 A, US 517148A, US-A-517148, US517148 A, US517148A
InventorsWilhelm Schefpel
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Wilhelm schefpel
US 517148 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

(No Model.)


No. 517,148. Patented Mar. 27, 1894.


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SPECIFICATION forming part of Letters Patent o. 517,148, dated March 27, 1894.

Application iiled September 19, 1888. Serial No. 285,829.

(No model.) Patented in Germany January 7,1886, No. 38,898; in

France December 8, 1886, No. 180,151; in England December 183, 1886, No. 16,307l and December 21,1887,N0. 17,555; in Austria-Hungary April 15, 1887, No. 47,578 and No. 15,242, and April 9, 1888, No. 50,097 and No. 10,242, and in Belgium December 8, 1888,11'0. 75,531.

l To all whom t may concern:

Be it known that I, WILHELM SCHEEEEL, a

subject 0f the Emperor of Germany, formerly of Remscheid, now residing at Mlheim-ontheRhine,Rhenish Prussia, Germany, have invented new and useful Improvements in Meat-Chopping Machines, (for which I have obtained patents in Germany, No. 38,398, dated January7, 1886, No. 42,173, dated November 2, 1886,(additional patent,) No. 44,750, dated May 12, 1887, (additional patent,) and No. 52,257, dated October 1, 1889, (additional patentg) in England, No. 16,307, dated December 13, 1886, and No. 17,555, dated December 21, 1887; in Austria-Hungary, No. 47,578 and No. 15,242, dated April l5, 1887, and No. 50,097 and No. 10,242, dated April 9, 1888; in France, No. 180,151, dated December 8, 1886, and in Belginm,No. 75,531, dated December 8, 1888,) of which the following is a specification. v My improvements in meat chopping machines have for their object to obtain an easier going of the machines, a ner cut of the meat, an easy and convenient fixing of the cutters into the cylinder, and nally an easy and ready changeability of the number and sort of disk cutters and knives and their convenient fixing in the machine.

The objects in view are obtained by making the speed of the cutting knives independent from the speed of the propeller screw, by arranging a separate box ring into the machine casing into which the knives and cutters fit, and by using distance rings fitted into the box rings in place of knives or disks.

In the accompanying drawings my various improvements named are represented.

Figure 1 is a longitudinal section through a machine showing the general arrangement of the driving gear for the propeller screw and for the cutter spindle placed inside of it and with only two knives or cutters and one cutter disk. Fig. 2 shows a section through the hind part of a machine with three cutter disks arranged one after the other and with the size of the holes in them diminishing toward the end and with knives on the cutter spindle before and behind the two first disks and one knife in front of the last disk. In these two arrangements the knives and disks are put in the machine, each one separately. Fig. 3 shows a similar View with four disks and corresponding knives and with the special arrangement that the knives and disks are here placed inside of a special ring. Fig. 4 is a longitudinal section through the ring, knives and disks asthey are put together and mounted on the cutter spindle and in the machine casing. Fig. 5 is partly a cross section through line I II of Fig. 3, and partly an end view of it. Fig. 6 shows a modification of the disk cutter ring with the distance ring placed in it for leaving out one set of knives. Fig. 7 is a similar arrangement with only two sets of cutters and disks. Fig. 8 shows on the left side a section through line III IV and on the right side through line V VI. of Fig. 6.

Similar letters refer to similar parts throughout the drawings, in which-` The pedestal casing B and feed hopper C of the machine, Fig. 1 are arranged as usual with machines of this construction. The shaft of the propeller screw -D is hollow and inside of it I place a spindle E and instead of driving the propeller screw direct, I place underneath the cylindrical casing a first shaft F which may be tted with a driving handle for small sizes, or with a pulley for large sizes. On this shaft F I fix the two spur wheels G and H, the smaller one of which gears with the large wheel I keyed on the propeller shaft D and the large one gears with the small wheel K on the cutter spindle E. The wheels .F and G and K and H respectively may be exchanged for other sizes in order to vary the speed of the propeller screw and of the cutter spindle at pleasure and as it may be best suited for the material to be out, raw or boiled meat, fat, 85e., but in all cases it will be advisable to let the cutter spindle rotate faster than the propeller screw, though the reverse will not be impossible or excluded, if found otherwise desirable. Close to the end of the propeller screw I iix ou the cutter spindle a star knife L and immediately in front of that a disk cutter lVI through the center of which passes the cutter spindle, being thus carried and supported by the disk which is held in place by the box nut N.


In Fig. 2 the casing, driving gear, propeller screw and cutter spindle are arranged in a similar manner, only the arrangement of knives and disks is different. Three cutter disks M, M', M2 being placed in the machine casing one behind the other; the first one M having large holes; the second one M smaller ones and the last M2 yet nerones. Close to the face and at the back of the disks M and M are fixed on the cutter spindle the star knives L L and O O whereas there is only one knife L on the face of the last disk M2 and none at its back. It will be easily understood, that the meat cut by this machine will be much finer, and because the pieces are reduced gradually as they advance and pass through different disks, the machine will go very easy and be of great efficiency.

In using more than two knives it has been found desirable to improve the machine in such a manner that theknives and cutter disks may be put together outside of the casing and that all of them, disks and knives may be pushed in one lot on the cutter spindle and into the casing. In order to enable this to be done in a convenient manner, I provide the machine with a separate box or ring P (Figs. 3 and 4), the inside diameter of which corresponds exactly with the size of the disksand with the diameter of the knives. At the two opposite sides this ring is provided with longitudinal grooves Q into which fit the edges of the disks, preventing them from turning round with the cutter spindle and the knives. In using this box ring for placing it together with the knives and disks in the machine casing, I take an auxiliary spindle of same thickness as the cutter spindle or a piece of round bar iron on which I shift the disks and knives and then I push the ring, together with the disks and cutters in it into the casing and on the spindle, and then I secure the whole by the nut N which is screwed on the casing. In order to be able to use only part of the cutters and disks and to fix them, just as safely and easily in the machine casing, I use a box ring S of somewhat different shape as it is shown by Figs. 6, 7, and 8 and I provide the machine further with special distance rings. This box ring S (Figs. 6 and 7), is made with an inward flange T and at its outside it is provided with a shoulder or recess U. The flange T has for its object to hold the distance rings V V (Figs. 6 and 7) which are put in the box ring in place of. the knives and disks taken out of it, if the meat needs not to be cut so tine or for some other reason and the outer shoul der is provided to give a hold to the fastening screw N for securing the box ring together with the distance ring, disks and knives in the machine casing.

Figs. 6 and 7 show the use of the box rings and of the distance rings, the length of which of course corresponds always to one, two, three, die., sets of knives and disks respectively.

The special arrangement of knives and disks shown by Fig. G where there is only one sharp knife in the face of the first disk, and then only one double edged knife between each two following disks,is for cutting boiled meat. I may still mention that the knives may be made straight or in curved lines. For cutting raw meat they are made by preference with a sharp edge, whereas boiled meat is chopped better by the use of broad edged knives, as shown by Fig. 6.

I am aware that prior to my invention meat chopping machines have been made with a propellerserew operating in conjunction with a rotating knife and a fast cutter disk. I therefore do not claim such a combination broadly, but

What I do claim as my invention, and desire to secure by Letters Patent, is-

In a meat chopping machine,an independently rotating propeller screw having a hollow shaft, a separate cutter spindle rotating therein, said spindle being provided with one or more perforated disks and knives at the end which projects beyond the propeller screw, the box ring plain or provided with flange T and shoulder U, as desired, in com bination with the distance rings V, fitted into the box rings in place of knives or disks, substantially as shown and described.

In testimony that I claim the foregoing I have hereunto set my hand this 11th day of August, 1887.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2509002 *Nov 28, 1945May 23, 1950Peter Jorgensen Martin MichaelMeat grinder
US6007007 *Jan 26, 1999Dec 28, 1999Ing Eberhard HaackCutter assembly for meat grinder
Cooperative ClassificationB02C18/302