US1677448A - hopkins - Google Patents

Description

July 17, 1928. 1,677,448 A. DU B. HOPKINS GRATER I Filed Dec. 5, 1927 2 Sheets-Sheet 2 INVENTOR. was/02 13110 0 fie #105 BY W W ATTORNEYS.

Patented July 1?, was.

J i GRATER.

Application filed December 5, 1927. serial in. 237,736.

This invention relates to fruit'and vegetable graters, and the prlnclpal ob ect of the same is to provide a. str ctly samtary grater in which the grating operation is performed in a closed casing, so. that foreign material can not obtain access thereto, and 1n -Wl110ll the operating parts are shielded so that there is no danger of injury being done to the operator incidental to the operating of the ill) machine.

Another object of the invention is the' construction of a. grater which is peculiarly reinforced, or braced to prevent sagging, or

twisting out of shape, of .the base structure of the same, whereby a very durable and efiicient machine 1s produced. I

. This application discloses certain new and useful improvements made to my machine as disclosed in my prior United States Patent No. 977,872, patented Dec. 6, 1910.

With the foregoing and other objects in view, my invention comprises certain novel constructions, combinations and arrange ments-of parts as will be hereinafter fully described, illustrated in the accompanying drawings, and more particularly pointed out in the appendedclaims. v

in the drawings: Figure 1 is a perspective view of the improved grater.

Figure 2 is a. vertical, longitudinal sectional view of my grater.

Figure. '3 is a transverse sectional view of the grater. q v

Figure 4 is a view in end elevation of the grater. v p Figure 5 is an enlarged fragmentary sectional'view taken on line 5 5, Figure 1, and looking in the direction of the arrows. teferring to the drawings by numerals, 1 designates a flat base which has, upstanding inwardly curved or troughed sides 2', form ing. .springs adapted to takeup any undu'epressure placed upon the grater when using the same. The top edges of the spring sides are connected by a concaved seat 3, in which the casing a is firmly and permanently seated. The body of said casing is substantially cylindrical and is open at its top. The rear of said body is continued up;- ward-ly on a slight outward incline, which together with similarly arranged end portions provide a guiding hopper 5 for con veying the material tobe grated or crushed.

The ends of the cylindrical body are provided with vertical slots 6 that extend from their upper edges to the center thereof, the

upper ends of'said slots being. flaringfand the lowerends being rounded, to provide bearings 77. At the lower portion of one of said ends. and preferably in alignment with the slot Otherein, (Figs. .1 and 2), drain cock 81s prov ded, which commun cates. with the lower part of the interior of the casing, and by ineans'of which the liquid contents thereof may-be drained off; I provide a sieve or strainer; 9 to efficiently strain" the j liquid or. fluids cock8' 2). I e i The upper longitudinal edgeof the eash1g4 has a hinge connection with a cover 10 for closing the to'pof s'aid casing," said cover 10 being integral with an airguI rIy projecting cover 11 for the front o-f'thehop per 5, the cover 11;-'in turn, having a hinge connection with a cover 12 for the top of said hopper 5. This arrangement of'covers passing off through drain provides means whereby the top ofthe'hop I per may beop'ened without opening the front thereof or opening the cylinder 4;

and also permits both the hopper and the casing .tobe opened, the independent open-H ing of the-hopper being for thefpnrpo se of regulating the feed-of material, and the opening of the casing being for thepurpose'f of'removal'of the gratedlmaterial or to per mit cleaning of the casing and'hopper, as

will he readily understood. Each section orcover: 10, 11 andjli hasat its enamelr cal flanges 1'3 that overhang the" ends ofthfe' grater for lreeping 'the contents of the casingand the hopper from spilling out. Each' end of thehopper cover 1231's provided at'its fiange 13 with an outstanding lug 1 1 (Fig. 1) adapted to be engaged by a pivoted latch 15, Q.fh t ai qV y.b e b ably fastened in a hopper-closingposition.

Agra ting or crushing cylinder l 'ti has its body portion provided wit-11 aplurality' of rows of struck up spurs 17. SaidQcylindei 16 is of a size'to permit free rotationof-the same within'casing 4., anddias its ends threaded as indicated at 18 for the reception of'the threaded caps19 Saiolicaps 19 can also be'securedto'cylinder 1 6 "by" catches, s milar to'thOse usedfifolj;Securing preserve jar'tops in positiona One" end" cap carries a stub shaft 20, the other cap carries a shaft 21. The shaftsQO and 21ers adapted to be fitted within the end slots 6 of the casing t and rotatein the end bearings 7 if bearings, and are removably held therein by the end'latches 22 that are pivoted at 23 to one side of said slots 6 and are provided with a notch 24 (Fig. 1) which engages over i in shafts when said latches are rotated to straddle the shaft. The latches 22 are formed of flat metal and are of sufficient size to entirely close the vertical slots .6, thereby pre-.

'will, therefore, be seen that the end latches perform two functions, to wit: they retain the shafts and crushing cylinder in place as well as close ,or seal the V-shape slots 6; the

bend latches being held against pivotal, movement, and snugly against the ends of casing 4 by the binding and clamping action of the cover and its end flanges when closed upon the casing. a

The-shaft 2O terminates. in a crank handle 26, which is equipped with a grip 27 by means of which the grating cylinder may be manually operated. Said shaft21 also carries a pulley 28, by means of which the shaft may be placed incbelted communication with a motor for operating thecylinder, when necessaryor desirable.

To efficiently fasten my grater to table 29, I preferably employ four screws 30, extending through the curved side 2 and base 1 into the table, as clearly shown in Figures 1 and 5. To prevent these screws 30 from havinga tearing action on the metal through which they pass, I provide for each, a primar-y sleeve 31 enclosing and slidably mounted upon an auxiliary sleeve. 32 (Finn. 5). Each .of the sleeves 31. and 32 exten into apertures of the base and sides, so that the apertures are reinforced, with no out or raw edge exposed, hence their tearlng pos sibilities are greatly decreased. The .pri-

.mary sleeve is provided with a flat collar 33 thatrests flat upon the top face of the curved V side, which further increases the durability and efiicieno of my grater by giving a good bearing sur ace for the head of the screw.

During the life of my grater,considerable.

strain is exerted upon the spring sides 2 and seat 3, which; causes them to have movements indicated by dotted lines A, in Figures 3, 4

and 5. Now, the screw-structures not only efliciently fasten my grater to a support, such as table 29, but they also brace the whole apparatus against sagging or twisting or undue bending, which 1s very desirable, be-

cause practically a rigid and durable structhe grating cylinder securely in place withy in said casing. Another feature of my apparatus is the employment of removable end caps, held by any suitable fastening means upon the grating cylinder, whlch can be readily removed to give access to the interior of said cylinder.

. l Vhile I have described the preferred embodiment of my invention and illustrated the same'in the accompanying drawings, certain minor changes or alterations may appear to one skilled in the art to which this invention relates during the extensive manufacture of the same, and I, therefore, reserve the right to make such changes or alterations as shall fairly fall within the scope of the appended claims.

What I claim is:

1. In an apparatus of the class described, the combinationof a casing provided with ends, said ends provided with shaft receiving slots, a cylinder wit-h shafts seated in said slots, end latches on the ends of said casing and normally straddling said shafts and entirely closing said receiving slots, and a cover for said casing normally closing over and bearing upon said end latches forholding them in a lockedposition.

2. In an apparatus of the class described, the combination of a. casing-provided with substantially V-shaped slots having bearings formed at their inner ends, a cylinder provided with shafts extending from its ends, said shafts journalled in the bearings of said V-shaped slots, large flat end latches pivotally secured to the ends of said casing and straddling said shafts and'entirely closing said V-shaped slots and extending to the top edge of said casing, and a cover for said casing provided with end flanges bearing against the sides of said end latches and the cover bearing upon tlie-"top of said end latches whereby the latches and shafts are held in position against displacement off said cylinder. In testimony whereof I hereunto affix my signature.

AUGUSTA DU BUISSON HOPKINS.

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