US1115754A - Lemon-squeezer. - Google Patents

Description

E. WALKER.

LEMON SQUEEZER.

APPLICATION FILED DEO.17, 1910.

Patented Nov. 3,1914.

Q N [pV I 5 w & m d D J E n? J I J k d P Z J I \17 R a Q 0 o L a I q e 3] 0 m I W J q f N R 0 a m gd 0 O z 6 LI K J 3 4 /m a D d k d M A e 2 i J g w a 1 WITNESSES INVENTUH W Edwin "huff!" A TTORNEYS E. WALKER. LEMON SQUEEZER. APPLICATION FILED DBO. 17, 1910.

3 SHEETS-SHEET 2.

Patented Nov. 3,

INVENTDR Eda/an flzZ/rer WITNESSES ATTORNEYS E. WALKER.

LEMON SQUBEZER.

APPL'IGATION FILED DEO.17, 1910.

1 1 1 5,754., Patented Nov. 3, 1914.

' 3 SHEETS-SHEET 3.

WITNESSES I I INVENTUR Edwan fiQZ/rer w/v m I EDWIN WALKER, OF ERIE, PENNSYLVANIA.

LEMON-SQUEEZER.

Specification of Letters Patent.

Application filed December 17, 1910. Serial N 0. 597,916.

1 '0 all tohom it may concern l 3e it known that I, EDWIN WALKER, a citizen of the United States, residing at Erie, county of Erie, and State of Pennsylvania, have invented a certain new and useful Lemon-Squeezer, of which the following is a specification.

This invention is a device for expressing the juices'and pulp from fruits of various kinds, although the invention, or parts thereof, may be embodied on devices for operating upon substances of different kinds.

The device to be hereinafter described is intended, more particularly, to be attached or mounted upon a table, shelf, or the like, so as to position all the working parts in a very compact relation.

My device is characterized, among other things, by a novel organization of mechanisms whereby the height of said device above the table, shelf or the like is minimized; in other words, the device does. not project above the table or shelf to such an eigpent as to be either noticeable or objectiona e.

A distinctly novel feature of the invention consists of means for compressing the substance to be treated, said compressing means comprising a cooperating receptacle and a head, capable of a relative movement toward and from each other 'at different speeds, whereby the receptacle or the head may be operated to at first approach each other quicklv for bringing the head into contact with the substance to be treated, and thereafter the head and receptacle approach each other more slowly, and in a manner to secure a slow, but powerful, compressing or squeez ing action upon the substance. 1

The invention, furthermore, embodies means for imparting rotary motion to one-ofsaid parts relative to the other part during, or atthe time of, the final compression or squeezing action. I

Preferably, the receptacle is operated by a reciprocating motion with respect .to the head, and the'head is rotated relative to the receptacle, although it is not-desired to limit the invention to this specific operation of these parts. g

The invention embodies, also,a form of receptacleconstructed to preclude the pulp of the lemon-under treatment from bulging outwardly beyond the skinqor rind, the aim beingfto so confine'or positionz the lemon, and particularly the pulp thereof, as to bring the same under the squeezing action of the device. Said receptacle is provided with ribs, and, preferably, its bottom is conical, or substantially so, said bottom being perforated for the escape of the juices and the bottom of the cup may be straight ribs, it is preferred to employ curved ribs, or spiral ribs, for the reason that the pulp and the seeds expressed from the fruit will be forced toward the center of the receptacle. This displacement of the pulp and seeds is due, in part, to the rotary motion imparted to the fruitunder treatment by the rotatable head when the final squeezing or. high pressure action is obtained between the head and the receptacle, and in part to the fruit being given a rotative motion with respect to the ribs upon the bottom of the receptacle, whereby the juice and the pulp will escape through the perforations in the bottom of the receptacle, the seeds being retained upon the bottom of the cup for the reason that they cannot escape over the boundary wall of the receptacle, nor through the perforations in the bottom thereof.

Other features of the invention, and the advantages thereof, will appear in. the course of the annexed detailed description.

In the accompanying drawings I have illustrated one practical embodiment of the invention, but the construction shown therein is to be understood as illustrative, only, and not as defining the limits of the invention.

Figure 1 is a vertical section, partly in elevation, of a lemon squeezer embodying this-invention, the receptacle being lowered relative to a rotatable compressor or head. Fig. 2 is a plan view with the cap of a casing removed to illustrate the parts contained withinsaid casing. Fig. 3 is a vertical section on the line 3-3 of Fig. 2, parts being tional elevation similar to Fig. 1 but with .the receptacle lifted into close relation to the-compressoror head, whereby the substancemay be compressed and treated for extracting the juices and pulp. Fig. 5 is a a detail plan'view of a ribbed and perfo rated receptacle adapted for use in the ma- Cl'llIlIle.: I v 1 A designates a casing 'forsome ofthe Patented Nov. 3, 1914.

compressing or Y pulp. Whilethe ribs on shown, also, in elevation. Fig. 4 is a. sec-.

'105 detail view of a cam 1n elevation. Fig. 6 1s I working parts, other working-parts being positioned below the casing exteriorlythereed openings,

of, as will hereafter appear. The casing is provided with a chamber, a, the bottom, sides and ends of which are closed, but the top is, preferably, open, said top being closed by a cover, a, adapted to be secured removably in position, whereby access may be obtained to the working parts housed within the casing. Said casing is compact in construction and it is provided with means for retaining it fixedly in position upon a shelf, table, bar, or other device, in such manner that the machine does not extend for an objectionable or appreciable distance above the top of said shelf, etc.

As shown more clearly in Fig. 3, the casin is provided with a rearwardly extending 1e go, o, and with a plurality of arms, I), said ledge and the arms being positioned to rest upon and to fit below the shelf, respectively. The arms are provided with threadin which work clamping screws, B, the latter being provided with heads, 5 and with finger pieces, 6 for their convenient adjustment. The machine is applied or fitted to an edge of the shelf by ledge, b, resting thereon, after which screws, B, are adjusted for the heads, o to engage with the under face of the shelf whereby the machine is adapted tobe clamped fixedly in position upon the shelf. As shown, cover, (0, extends over the ledge for the purpose of incasing and concealing it. On its under or bottom side the casing is provided with lugs, d, having openings,

for the reception of vertically positioned rods, D, said lugs serving as guides for said rods when the latter are reciprocated.

E, designates a crosshead, the same being positioned within the casing for reciprocating movement therein. The crosshead is provided with bent or curved end portions, 6, the latter having lugs, 6, through which pass the upper ends of rods, D. The rods are fastened rigidly to thelugs of the crosshead, whereby the rods and the crosshead are united for movement together and in a vertical direction relative to casing, A.

The front wall of casing, is shown in Fig. 2 as being provided with ribs, f, f, positioned parallel to each other so as to produce in connection with the rods, D, a guideway for the crosshead. The crosshead is provided with a guide member, G, which works in said guide way, said member, Gr, being constructed with a slot or recess, g, shown in explained. The crosshead is provided, also, with .a stud or roller, h, positioned on one face of said cross.

head and substantially midway between the ends thereof.

H is a shaft bearing provided on the front wall of said casing. u said heating is journaled a main shaft, H, the same being provided with a crank handle, H vfor its convenient operation. That end of the shaft which lies within chamber, a, of the casing carries a master wheel, L-the same embodyinga combined gear and cam. Said master wheel, I, is positioned for operation within the path of the reciprocating crosshead, the latter bein slidable relative to the master wheel. Said master wheel is provided with bevel gear teeth, 2', on one face thereof, and on the other face-of said wheel is a rib, j, forming a cam, see Figs. 2, 3 and 5 of the drawings, and the dotted lines in Figs. 1 and l. The master-wheel is provided, also, with a stud or roller, positioned on that face of the wheel having the gear teeth, and preferably near the periphery of said wheel. Said stud or roller, J, of the master wheel is positioned for cooperation with slot or recess, 9, in guide member, G, of the crosshead when the master wheel is turned through a certain part of its motion, whereby stud or roller, J, operates to impart a reciprocating motion to the crosshead and to rods, D. Stud or roller,

71., of the crosshead is positioned for cooperationwith the cam, j, of the master wheel when said master wheel turns through a certain part of its revolution, the cooperating cam, j, and stud or roller, h, acting to J, the same being impart the final squeezing or pressing operation upon the fruit or substance under treatment, as Wlll presently appear.

K, designates a carrier positioned below casing, A, of the machine, said carrier being capable of a reciprocating motion with rods, D, and crosshead, E. As shown, the carrier is provided with perforated lugs, 70, through which pass the lower ends of rods, D, said rods being providedwith adjusting nuts, d, positioned forengagement with the upper and lower faces of lugs, is, for the purpose of rigidly'fastening the carrier to the rods. The carrier is provided with a central openiang and with internal shoulders, Z, m, shouler, m, being positioned above and parallel to shoulder, Z, see Fig. 1.

O, designates a receptacle forthe material to be treated, said receptacle being preferably embodied as a cup. On its under side the receptacle is provided with a ledge, 0, adapted to occupy the shoulder, m, of thecarrier, whereby the receptacle may be placed in position upon the carrier so as to be supported thereby and to be movable therewith, said receptacle being easily lifted out of position. and removed from the carrier. The receptacle isprovided with a'bottom, O, preferablysubstantially conical in shape, although the particular shape of the receptacle is not a material item. On its upper face the bottom, O, of the receptacle is provided with a plurality of ribs, P. As shown, the ribs are curved from the outer. wall of the receptacle, and they extend inwardly toward the center thereof. I.may employ straightribs, extending radially shown, cup, L, has

bolt having a winged thumb nut,

the bottom, but it is pre- The curved ribs from the center of ferred to use curved ribs. do not meet'at the center of the bottom, thus leaving a flat raised central part in the bottom, which part assists in retaining the fruit in position within the cup. The ribs provide curved shoulders which extend substantially radially from the center of the bottom to the surrounding wall of the cup, the surface of the bottom between the ribs being inclined from the shoulders which are formed by the ribs. In addition to the ribs, the bottom of the cup is provided with openings, 7), for the exit'of the juices and lp from the material under compression. Said openings, p, are positioned close to the shoulders formed by the ribs, as clearly shown in Fig. 6; any desired number of openings being employed in each series adjacent to one of the ribs.

The cup is square or hexagonal externally,

and it is fitted in a correspondingly shaped opening provided in carrier, K, whereby the cup, when seated upon the carrier, is precluded from rotating relative to said carrier, the cup remaining in, or occupying a substantially stationary position upon the carrier during the final operation of compressing and rotating the material under treatment.

L, designates a collecting cup supported in the carrier and positioned below receptacle, 0, within which the material is adapted to be compressed. The collecting cup is composed, preferably, of glass, metallic substance, but the particular ma. terial of the cup is not essential. At its edge, the cup is provided with a flange Z, adapted to occupy shoulder, Z, of the carrier, said cup L, being fitted removably to the carrier for the purpose of withdrawing the cup when desired in order to clean it.- As an inclined bottom, m, and a central outlet, m said outlet providingfor the escape of thejuices and pulp expressed from the material under treatment and flowing through the perforations, p, in the bottom of receptacle, 0.

The glass or other container is adapted to be positioned below cup, L, and to be supported in a holder, N, the latter being fastened to the rod, at, extending upwardly into an opening provided in one of the guides, d, of the casing, whereby the rod, n, is adapted to be fastened detachably to the casing by a Q, designates a compressor adapted for cooperation with receptacle, 0. Said compressor is shown as a head, the under face of which corresponds in shape to bottom, O, of the receptacle. Said head is shown as having a recess, q, provided with radial ribs, 1;, said ribs of the compressor being brought into close relation to the ribbed surface, P, of the bottom, 0, of the cup, during the or other non-' final compressing and rotating operation of the material under treatment. The compressor is attached rigidly to the lower end of the vertical shaft, R, the latter being mounted in opening, r, provided centrally in the bottom portion of casing, A. Said shaft is provided near its upper end with a collar, r, which rests upon the bottom of the easing to preclude downward movement of the shaft and the compressor. The upper end of said shaft, R, is provided with a beveled gear, R, which meshes with beveled gear teeth, 5, of the rotary master wheel, I, said master wheel serving to impart rotary motion to shaft, R, and compressor, Q, when the crank, H is moved in one direction or the other for imparting rotary motion to shaft, H.

This being the construction of my new device, the operation thereof is as follows: Vith the crank, H in the position shown in Fig. 1, master wheel, I, is turned for stud or roiler, J, to lie-within slot or recess, g, of the cr'os'shead. Rods, D, carrier, K, re.- ceptacle, O, and cup, L, are'lowered away from the compressor Q, thus separating the compressor, Q, and receptacle, 0, so that the operator is able to readily place the material to be treated within the cup. Assuming that a lemon is to be squeezed, it is .cut in half, and the divided fruit is placed within receptacle, O, with the pulp thereof in contact with the ribbed perforated bottom, 0, of said receptacle. The operator turns crank. H, from the into the position of Fig. 4, whereupon the following operations take place: Master wheel, I, is rotated so that the beveled teeth, 71, thereof impart rotary motion to beveled gear, R, shaft, R, and compressor, Q, and at the same time the stud or roller, J, is carried upwardly during a part of the rotation of the master wheel. Such upward motion of stud or roller, J, acts upon the slotted or recessed guide member, G, to impart a quick upward movement to the crosshead, E, whereby rods, 'D, carrier, K, receptacle, 0, and cup, L, are lifted quickly for the pur position of Fig. 1 over pose of bringing the material to be compressed in the cup, 0, into contact with the recessed or ribbed surface of compressor, Q. J approaches the limit of its high point of travel, it leaves the slot or recess, 9, in guide, the stud or roller, J, of the master wheel fromthe slotted or recessed guide of the crosshead, and just as stud or roller, J, leaves the crosshead. the end portionof cam, j, of the master wheel passes below the stud or roller, 71,.positioned-at the middle of the crosshead, whereby the crosshead and the parts carried thereby are precluded from dropping with relation to the master wheel and the compressor. As the master wheel continues to return, with cam, j, in contact G, so as to disconnect forations in the bottom of tically strained. The'rotating with the roller or stud,

e rator to turn the crank in an opposite with stud or roller, h,'of-the crosshead, and with the receptacle, O, and other devices on carrier, K, in raised position with relation to compressor, Q, said cam, 3', acts upon stud or roller, h, to still further elevate the crosshead and receptacle, 0, whereby the final squeezing or compressing operation, at slow speed, is given to the material under treatment by the continued elevation of the crosshead under the action of cam, 9'. While said final squeezing or compressing operation takes place as just described, compressor, Q, is rotated by shaft, R, geared to the master wheel, said compressor acting to impart a rotative movement to the material under treatment during such final compressing operation. The ribs upon the upper surface of the bottom of the cup operate to'force the pulp toward the center of the cup, thereby precluding the pulp from projecting'out side the skin or rind of the lemon and bringing all the material into position between tlie'con1pressor and the cup so as to squeeze it. T he juices and pulp expressed from the material are free to escape through the per-'- the cup, so that the expressed liquid and pulpy matters will be collected by the cup, L, and delivered through openings, m in the bottom thereof into a glass or other vessel supported by holder, N, below said cup, L. While the juices and some .of the pulp are free to escape through the perforated and ribbed bottom of the receptacle, 0, the seeds and other parts of the pulp are retained within said receptacle, the liquid matter being pracand squeezing operations having been completed by the movement of the crank in one direction, it is now in order for the operator to reverse the direction of the operation of the crank in order to open the machine and provide for the removal of the residue left in receptacle, O, as the result of the compressing operation. It is only necessary for the (zip- 1- rection, or from the position shown in Fig. 4- hack to the position illustrated in Fig. 1. \Vhen the crank begins its movement in the reverse direction, the master wheel, I, is rotated to withdrawcam, 7',

h, and immediately thereafter stud, J, entersinto the slot or recess. of guide, G, whereby movement of the crank and the master wheel operate to quicklylower the crosshead, the carrier, the receptacle, and cup, L, thus separating the receptacle from'the compressor bv an easily and expeditiously perfomed operation so that the receptacle is exposed for convenient access by the attendant.

' Having thus fully described the invention, what I claim as new, and desire to secure by Letters Patent, is:

1. In a device of the class described, arement relative to speeds thereto.

3. In a device of the class described, the combination with a frame, of a receptacle, a compressor, and means for imparting reciprocating motion, at variable speeds, to one part relative to the other, said means from engagement by embodying a crosshead fittedwithin said frame for slidable movement relative thereto, and a rotatable member provided with devices positioned for successive contact directly with said crosshead.

l. In a device of the class described, a receptacle, a' compressor, means for rotating one of said parts relative to the other, and means for imparting reciprocating motion, at variable speeds, to one part relative to the other, embodying a crosshead limited to slidable movement, and a rotatable member having devices positioned for successive contact directly with said crosshead.

5. In a deviceof the class described, a frame, a crosshead limited to reciprocating movement relative to said. frame, a rotatable member having devices positioned for successive contact directly with said crosshead whereby reciprocating motion,

speeds,'is imparted to' the crosshead, a receptacle, a compressor, and means for securing relative rotative movement between the receptacle and compressor, one of said parts having reciprocating movement with the crosshead.

6. In a device of the class described, a master wheel provided with a cam, a crosshead operated at one period of its movement the master wheel andat another period of its movement by said cam, said crosshead being guided for reciprocating movement the continued transversely with respect to the master wheel, a receptacle operated by the crosshead, and a compressor positioned for co.- operation with said receptacle.

7. In a device of the class described, a master wheel provided with a stud and with a. cam, a crosshead in cotipcrative relation to the stud andthe cam whereby the crosshead is operated at different speeds by the stud and the cam, respectively, said crosshead being limited to reciprocating move the master wheel, a recepsively upon the crosshead to impart variable at variable.

' with the cam, said crosshead being supto said crosshead, said crosshead being tosaid operating member.

, stud and a cam, a compressor geared to said to the crosshead, means for rotating said compressor, a carrier attached to the cross- "head and reciprocable therewith, and a re tacle Operated by the movement of the crosshead, and a compressor positioned for co-, operation with the-receptacle.

8. In a deviceof the class described, a master wheel provided with a cam, a crosshead having a stud adapted for cooperation ported for slidable movement independently of the master wheel, a receptacle operated by the movement of the crosshead, and a compressor positioned for cooperation with said receptacle. i

9. In a device of the class described, a crosshead, a compressor, a receptaclefopen ated by the movement of the crosshead, and adapted toicooperat'e with the compressor, and a' single operating member having means for rotating the compressor and pro-, vided, also, with means for imparting re-f ciprocating movement and at variable speeds guided for reciprocating movement relative 10. In a device of the class described, a master wheel provided with gear teeth, a

teeth of the master wheel, a crosshead having a guide for cooperation with the stud, and a stud adapted to cooperate with the cam, said crosshead being guided for reciprocating movement with respect to the master wheel, and a receptacle movable by the crosshead into and from cooperative relation to the compressor. 7

11; In a device of the class described, a crosshead, a master wheel provided with devices for cooperating successively. with the crosshead and imparting variable speeds thereto, said crosshead being guided for. reciprocating movement with respect .to the master wheel, a compressor, and a receptacle operated by themovement of the crosshead.

12. In a device of the class described, a suitable frame, a crosshead guided within the frame and limited to' reciprocating movement relative thereto, "a compressor, means for imparting reciprocating, motion ceptacle'supported by the carrier and movable therewith relatively to' the-compressor. 13.-In a device of theclass described, a

suitable frame, a crosshead guided within ging said receptacle in the frame and limited to, reciprocating movement relative thereto, a compressor, means for imparting reciprocating motion to the crosshead, means for rotating said compressor, a carrier attached to the crosshead and reciprocable therewith, a collecting cup seated on thecarrier; and a receptacle supported on the carrier above said collecting cup, said cup and the receptacle being movable with the carrier.

14. In a device of the class described, a \compressor, means for rotating it, a carrier below said compressor, means for imparting reciprocating motion to the carrier relative to the compressor, a receptacle supported by the carrier and movable therewith relative to the compressor, and cooperating flanges on the carrier and the receptaclefor retaina non-rotative position upon the carrier. I 15. In-a device of the class described, a ,compressoiya receptacle provided with substantially radial ribs upon the bottom there of, said ribs operating to direct the pulp within the rind of the material under compression, cooperating flanges on the carrier and the receptacle for retaining said receptacle in a non-rotativev position upon the carrier, means for imparting a traveling motion to one of said parts relative to the other, and means for imparting a rotative movement to one part relative to the other part. I v

16. In a device of the class described, a compressor, a cup-like receptacle provided with a perforated and substantially conical bottom, said bottom having, ribs on its upper surface operating to direct the pulp within the rind of the material under treatment, means for reciprocating the cup-like receptacle relative to the compressor, means for rotating said compressor relative to the cup-like receptacle, and cooperating devices on the carrier and the receptacle for retaining said'receptaclein anon-rotative position relative to the carrier.

In testimony whereof I have signed my name to this specification'in the presence of two subscribing Witnesses.

EDWIN WALKER.

Witnesses: i v

H. T.- BERNHARD, J. F. MoTHERsriEAD.

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