US759923A - Food-chopper. - Google Patents

Description

I No. 759,923. PATENTED MAY 17, 1904.

c. F. SMITH. FOOD GHOPPER.

APPLICATION FILED JULY 13, 1903. N0 MODEL.

2 SHEETS-SHEET 1.

ff/ lznsssss wi h PATENTBD MAY 17. 1904f G. E. SMITH. FOOD CHOPPER.

APPLICATION FILED JULY 1a, 1903.

2 SHEETS-SHEET 2.

NO MODEL.

UNITED STATES Patented May 17, 1904.

PATENT OFFICE.

FOOD-CHOPPER.

SPECIFICATION forming part of Letters Patent No. 759,923, dated May 1'7, 1904.

Application filed July 13, 1903. Serial No. 165,318- (ND model-) To all whom/ it may concern:

'Be it known that 1', Cinemas F. SMITH, a citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Food-Choppers, of which the following is a specification.

My invention relates to improvements in food-choppers, and the main objects of my improvement are simplicity and economy in construction and efficiency in operation.

In the accompanying drawings, Figure 1 is a sectional elevation of the main portion of my food chopper, the plane of section being vertical and extending longitudinally along the axis of the forcer. Fig. 2 is an end view of the case and forcer, showing the delivery end, the perforated plate and its nut being removed. Fig. 3 is a horizontal section of the case on the line a: of Fig. 2. Fig. 4 is a plan view of a portion of the forcer. Fig. 5 is an end View of the said forcer, showing the delivery end. Fig. 6 is a transverse section of the case on the line y 1/ of Fig. 1. Fig. 7 is a broken sectional view of a portion of the case on the line of Fig. 2. Fig. 8 is a side view of the perforated plate or outer rotary cutter.

The case A is provided with the usual hopper 9, feeding-ribs 10, and standard 11, the

latter being represented as broken off. In the preferred construction the caseis provided with an assembling-opening 12 at its crank end, the said opening being of substantially the same diameter as the bore of the case at the top of the feeding-ribs. At the delivery end of the case 1 form a series of inwardlyextended knife-arms 13, the inner ends of the said arms being slightly concaved, the same as if they were together bored out on a true circle to form the journal-bearing for that end of the forcer. These arms on their outer face are flat or square across at a right angle to the axis of the case, so that they may be used in connection with a fiat perforated plate 14 or equivalent flat rotary cutter. The

knife-arms 13 on their inner face are slanted backwardly, so that the said arms are wider at their outer ends, where they oin the case, than at their inner ends, which form the our nal-bearing, as best shown in Fig. These arms correspond in number with the feedingrib terminals on the case, so that the base or outer end of each arm is at the terminal of one of the said ribs. The spaces between the arms should extend outwardly as far or farther than the interior diameter of the case-body between the feeding-ribs. The knife-arms are also beveled off on the inside at their noncutting portion 15, as most clearly shown in Fig. 6. I prefer to form these knife-arms integral with the case by casting them in one and the same piece therewith.

The forcerB is the ordinary form of screwforcer with one long and one short thread, the terminals of the two threads merging into the two shear-blades 16 at the conical end 17 of the said forcer.- This conical end is of a bevelto lit the inner slanting faces of the knifearms 13. The said forcer is also provided with a short journal-like portion 18, angular knife-driving portion 19, and screw-threaded end 20, the said journal-like portion being fitted to the bore at the inner ends of the series of knife-arms, while the angular knifedriving portion receives the perforated plate or knife 1 L and the screw-threaded portion the holding-nut 22. The crank end of the forcer provided with a journal or flange 23, that its and ills the assembling-opening 12 of the case, and with an ordinary crank 24-, the same being represented as broken 01f.

In general, the operation is the same as in prior cutters having forcers with blades at the end that act on knife-arms at the end of the case and an external rotary cutter acting on the outer faces of the arms. The material passing through the machine flows directly from the spaces between the feeding-ribs to the spaces between the knife-arms, the noncutting beveled portions of the said arms facilitating such flow. The material also Hows between the knife-arms inwardly to the journal-bearing whereby the capacity of the chopper is increased, inasmuch as an outer rotary knife or cutter may be employed that cuts much nearer to the journal bearing than could be the case if the said arms were provided with a bearing-ring. By having the knife-arms disconnected at their inner ends the spaces between the said arms are more readily cleaned after use.

I claim as my improvement 1. In a food-chopper, the combination of a case havinga series of spiral feeding-ribs and spaces between the said ribs, with a series of knife-arms formed integral with the said case, and having inner end faces that serve as the journal-bearing at that end of the case, the said knife-arms each having an outer cutting-face extending from end to end of the said arms and an inner cutting-face that terminates at its outer end with the top, (greatest inward projection,) of the said feeding-ribs while the space between the said knife-arms extends outwardly as far as the space between the said feeding-ribs, a forcer having shearblades acting on the inner faces of the said arms and a rotary cutter mounted on the said forcer and acting on the outer face of the said knifearms.

2. Ina food-chopper, the combination of the case having a series of inclined feeding-ribs with a series of knife-arms at the delivery end of the case, the said knife-arms having fiat outer faces in one plane, inner faces slanting backwardly from their inner ends to form a conical series of cutters, each of the said knifearms belng arranged at the terminal of one of the said inclined feeding-ribs, a forcer havthe base or outer ends of the said fixed knife-v arms adjacent the cutting and beveled edges thereof, the bevel of the said arms being in the direction of the incline of the said feeding-ribs.

CHARLES F. SMITH. WVitnesses:

A. IV. KEMr'roN, F. A. SEARLE.

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