US2280418A - Shoe repairing machine - Google Patents

Description

April 21, 19422. vH. R. MYERS sHE REPAIRING MACHINE Filed Dec. 4, 1939 2 Sheets-Sheet l lll/,111', I

April 21, 1942.

H. R. MYERS SHOE REPAIRING MACHINE 2 Sheets-Sheet 2 Filed Dec. 4, k1939 Pff `Patented Apr. 21, 1942 y[UNITED STATES PATENT 'o1-"trims 7 l' e SHOE REPAIRING MACHINE `Harry R. Myers, Zanesville, Ohio 1 Application December 4,1939,`seria1Ne. 307,533 l (c1. 12--33i 8 Claims.

` `This invention relates to an `improved shoe repairing-.machine of thegeneral `type Shown in my patent,` No. 2,129,437, .granted September 6, 1938.

As one oftits principal objects,` the invention seeks to provide a shoereparing` machine which may be operated with `the utmost facility for cementing patches or taps to shoe soles. t

Another object of the invention is to provid a `machine of this icharacter including an anvil havingl a resilient heating surface for conveniently receiving the shoe sole.`

A further object ofthe invention be readily removedsirom` the, machine when desired.-

`As atfurther object, `the invention seeksto pro-` vdea .shoe repairing machine `having abase provided with a standard, the standardhaving an overhanging stationary head, `and said head having` improvedmeansthereon for supporting a shoe `whereby the shoe maybe shifted toward is to provide a Shoe repairing machine wherein `the anvil may Figure Gis an enlargeddetail sectional view, partly shown in elevation, of the structureof one `of the heads employed, l t

Figure 7 is `a vertical sectional view `on the l chine. Thebase I is preferablyformed of heavy cast metal and is of substantially rectangular l contour. Svaidbase has a standard 2 formed integrally therewith and rising from one side thereand'away; from the anvil and,` when being moved away from the anviLby further movement,may l be shifted toa position to permit convenient removal of a repaired shoe.` l

As a furtherl object, `the invention provides a shoe repairingmachine wherein the means carried byfthe head consists `oi? anoperating lever, a shoe supporting element, linkage connecting the operating lever with` the shoesupporting element, i

and a spring for resilientlyfmounting the Shoe supporting element t with respect to .the head.

`Other @and .incidental objects offthe invention will become apparentlduring the course of` the following description. l i v i In the` drawings f forming va part of my appli-` cation:` l

` Figure islal `side"elevailion showing mylime proved shoe repairing machine as` it would appear `preliminary to being placed in operative position,

of, said standard including aiforwardly and medially disposed web 3` and lower flanges 4 and 5 which loweranges are formed integralV with the` base;4 The base `also includes vertically enlarged end walls 6 and I which cooperate with theweb 3 to dene compartments 8 `and 9". Thecompartments 8 and 9 removably receive shoe supporting anvils` I 0 and II which will be described more fully hereinafter. Thev standard 2 carries a bracket I2 at its upper end, said bracket extending longitudinally above the base in spaced rela- "tion thereto and carrying head mounting plates I3 and I4.

Movably mounted on the head mounting plates I3` and Mare heads I5 and I6. The heads I5 and I6 are of identical construction so that a description of one will suffice for both. I The head I5, for

the head, shoe supporting element, and operating i links and lever structure also ,beingshowm in dotted lines, in a ,raised position for permitting removal of ,a shoefaftert repair thereof,

Figure 2 is aj sideelevation of the machine in operative position; a shoe being shown in. section as it would appear in proper position on the anvil,

Figure 3 `is atop plan view" of the` machine in inoperative position,

` Figure 41s an enlarged vertical sectional view on the line--of Figure, i e, Figure 5 is `an enlarged vertical sectional view showing the head twith the plunger and stem employed in the position assumed when `the machine is in operation,

i example, is mounted on the plate I3 and is thus.y `disposedabove the anvil I0 substantially medially ofthe length thereof. Said head includes a body portion Il which is substantially rectangular .in shape, `said `body portion having `a front4 Wall vI8 whichis remevably connected therewith. As best seen in Figure`4 of thedrawings, the body I'I is formed 'with `a''longitudinally extending opening IS which is substantially rectangular in cross section. `Said body I1 is `also formed with. a recess`20. opening on one side edgeof the body, and said .recess is connected with the upper and lower facesby means ofborcsZI and 22. The plate I3 forms" the back of the head I5 so that no back wall will be required "for said head.` -A slot 23 communicates between; the-opening I9 and the rear of the head.

sudebiy mounted in; the opening |s` isfa plunger 24 vwhich `plunger carries aston pin 25 at its upper end, said stop pin being normally slidably mounted in the slot 23. The plunger 24 is, as best seen in Figures 1 and 2 of the drawings, extended downwardly to a'point beneath the head. As shown in Figure 1, the rear face of the lower end of the plunger is formed with vertically spaced recesses 26 which are selectively engageable by thev inner end 21 of a set bolt 26 which set bolt is carried on the apertured and squared upperend 29 of a shoe supporting element 30. As seen, the shoe supporting element is of arcuate contour, and said shoe supporting element carries a toe or last 3| which is engageable with the upper surface .of a shoe sole within the shoe. That is to say, when a shoe is, as best seen in Figure 2 of the drawings, held in operative position, the plunger is forced downwardly for clamping the shoe sole between the upper surface of the anvil II and the lower surface ofthe toe 3| `of the element 30. The manner of shifting the plunger downwardly will now be described.

Extending through the bores 2| and 22 and through the recess 20 is a stem 32. The stem 32 is movably mounted in the bores and carries a squared collar 33 which collar is rigidly lixed to the stem and is, therefore, limited against movement thereon. The collar, as best seen in Figure 3 of the drawings, extends through a slot 34 in the wall I8 and is 4vertically movable, with movement of the stem, throughout the length of the slot. Conned between the collar 33 and the upper limits ofthe recess 20, and surrounding the stem 32, is a coiled spring 35, said spring normally urging the collar downwardly into engagement with the lower limits of the recess 20.

For manually forcing the plunger downwardly, IV provide an operating lever 36 which is formed witha manually engageable portion 31 and an "arm 33 which is disposed in obtuse anguv lar relationwith respect to the manually engageable portion 31. A pivot bolt 39 extends through the lever 36 Vat the junction of the arm with the manually engageable portion and said bolt extends through the lower end portion of the plunger 24. The arm 38 rhas its free end portion operatively connected with one end portion of a link 39 by means of a bolt 40. Said link 39 is extended downwardly, as clearly seen in Figure 1to define a stop lug 4I which is engageable with the hub 42 of the lever 36, said hub being formed to receive the bolt 38L therethrough. As will bevseen, the stop 4I limits forward and downward movement of the operating lever to such. an' extent that, in lowermost position, the manuallyengageable portion 31 will be substantially horizontal with respect to a horizontal supporting surface; The opposite end of the link 39 isconnected tothe collar 33 by means of a bolt 43. `It will now be understood that the operating lever 36 is not only connected with the plunger 24 but is also connected with the stem 32, through the collar 33 and the link 39. With further reference to the link 39, it should be observed that the lug 4| is slightly angularly disposed, with respect to the body of said link so that, beforeA the end 'of the lug engages the hub 42, when the lever is in lowered position, the axis of the bolt 40 will be moved forwardly past dead center. In this condition, the link 39 will eooperate withthe arm 38 for tending tourge the manually engageable portion downwardly. The link Y39, of course, will be urged upwardly against the tension of the. spring 35, said spring providing means for forcing the plunger downwardly under tension. As previously stated, and as shown in dotted lines in Figures 1 and 'I of the drawings, the head I5 is movable for disposing the shoe supporting element 30 upwardly and forwardly with respect to the bracket I2 so that a shoe may be readily removed therefrom after repair. In order to effect this, the plate I3 is formed as shown in Figures 1 and '7. That is to say, said plate I3 includes a straight portion 44 which is normally disposed to confront the rear edge of the slot 23 in such a manner that the pin 25 will be permitted to slide vertically within the slot and against the front face 44. The plate I3 is, however, formed with a downwardly extended arcuate face which terminates at its lower end in a stop shoulder 46. The forward and upper ends of the arcuate face 45 are disposed near the upper end of the slot 23 so that, when the plunger 24 is retracted to its uppermost position, the pin 25 will pass the upper limits of the front face 44. The entire head will be then permitted to swing about a pivot bolt 41 which extends through the head and through said plate I3. The pin 25 will thus be permitted to slide over the face 45 and, as shown in dotted lines in Figure 7, said head will be limited against pivotal movement by engagement of said pin 25 with the shoulder 46. In this position, the shoe supporting element will be disposed with the last or toe 3| in a forward raised position so that the shoe may be conveniently removed. Downward movement of the head is limited by means of a stop pin 48 which is carried by an ear 49 formed on the lower and rear extremities of the plate I3.

Further description of the anvils I9 and II will now be given. It is desired to point out that the anvils are of identical construction so that a description of one will sulce for both. The anvil II, for example, comprises a substantially U-shaped frame 59. The frame 59 includes a depressed central portion which denesa well 5I for the reception of water or other liquid. A drain bore 52 leads from the well and is normally closed by a screw plug 53. The well 5| is provided with a thickened bottom wall 54 which is formed with a recess 55 in its lower surface for the reception of a heating element 56. At one end the recess 55 is slightly enlarged, at 51, to receive a thermostat unit 58. A plate 59 closes the recess and securely retains the heating element and thermostat unit in place. The portion 51 of the recess 55 has Contact springs 60 and 6I mounted therein, said contacts being electrically connected with the heating element 56, the contact 69, however, being connected through the thermostat unit 58. Pairs of insulated studs are shown at 62, one of said studs being provided for engaging each of the springs 60 and 6I, the studs 62 being connected in anv electric circuit with a source of electrical current and a control switch. The well is covered by a tread 63 which is formed of rubber or other resilient material, said tread having its upper end edges held in place on the frame 50 by means of clips 64v and 65. Clips G6 engage each side edge of the tread. The clips securely fasten the tread in position so that liquid contained in the well will be prevented from escaping from between the ends of the tread and the ends of the frame.,A The tread will, of course, provide a resilient support for a shoe.

Screws 61 are passed through the front and rear walls of the base I and engage each anvil and retain it in operative position. As will be seen, two screws are carried in the front of the base and one at the rear. This arrangement, of

` be employed if desired.

claimed as new is:

t 2,2eo`,41e course, permits prop'erlocationbfivthe anvilstwfithf` The dpg'eratin` oftL thewirivention would appear obvious from "the foregoing description.` "Howeverjit deemed advisable to `insert afbrief statement concerning said operation. Preliminary to l placingl a shoe to be `repaired in position,

the `lever3l5 isiraised so thatthe plunger^24` will beretracted to itslfull uppermostposition; The manually engageabyle portion 31 will bel'disposed vvertically and the shoe engagingelement 3l!` will be` disposed between the head and the anvilfand out of engagement with said anvil. The spring `3 5 will, ofcourse; `urgethe Astem 32 toits lowermost position. l If foundfmore convenienuthe lever 36 may `be Aforced rearwardly `for causingthe pin45 to ride over thebase 25-"and into. engagement with the shoulders 46, whenthe headwill be'shiftedtd horizontaiposition and the last orv toe 3l shiftedftolvertical position;V The machine is nowlready forthe placing of1 a shoe on the toe orlast,` `itbeing amatter of` choice whether the headiis disposed vertically `or horizontally. The shoe is placed on the llast with the sole thereof in engagement with the `under-surface ofsaid last.I The lever 36, is swung downwardly for clamping the sole of theshoe between the upper surfaceof the anvil andthe under surface of said t last, As the lever is moved downwardly, and the last forces the shoe `against the anvihtheV arm 38 and` link 39 will `shift the stem 32 upwardly againstthe tensionof" the spring 35. As previouslydescrib'ed, when in fullwdownward position,

tnepivo't bpm 4u`wi11 beldisposed slightly past dead" center so that `the spring may `exert full downwardpressureon the last for clamping the element, a plunger carried byy 'the f head and oper- `atively connecting the` shoe supporting element with" the headlan operating lever, resilient means carried bythe head,` and means connectingthe operating lever with? the plungerv and resilient means, said last-mentioned means being operable for shifting'theshoe supporting element downa shoe supporting element, a plunger carried by shoe in place onthe-anvil. The'anvll, of course, d

is heated by connecting the electrical current source to the heating element. `After heating of the heating element to a desired temperature, it will be possible to effect the cementing of a new `sole or tap in place, as fully explained in my e patent, No. 2,129,437. After the repair job has been completed, it is only necessary to shift the fmanually engageable portionv 31 for raising the lever 36 and lifting the plunger `24. After the plunger 24 has been raised to its full uppermost limit, the pin will `clear the slot 23 and will permit the head to be `rocked rearwardly Afor raising the element to the position shown in dotted lines in Figures 2 and '7,'` whereupon the repaired shoe may be quickly and easily removed.`

Attention is directedfto the fact that, although I have shown but two heads and their associated structure, it shouldbe understood that more may It is also `desired to mention that the last 3| may be ofthe configuration shown, or may be of a size adapting lt particularly for use for cementing patches onshoe toes.l

The invention is characterized bythe utmost l simplicity and durability. l The head construction not being required.

It is believed that `further 'description isunnecessary. e

Having thus described the invention, what is 1. In a shoe repairing machine. a base, a standard carriedby the base, a head carried by the standard, a shoe supporting element, an anvil one edge of said slot normally alining with the the head and operativelyconnecting the shoe supporting element with said head, a stem carried by the head; a spring about the stem, an operating` lever, means operatively connecting the operating lever with the plunger andI the stem, and means carried by the plunger fornormally ilimitingthe head to restin vertical position, said "operating lever beingshiftable in one direction" and against the tension of the spring forclamping the sole of a shoe between the shoe supporting` elementand the anvil and in another direction for raising the shoe supporting element to clear the anvil, saidoperating lever being further movable 'for clearing the last-mentioned means and permitting shifting of the head about the "pivotal connectionwhereby the shoe supporting element will bedisposed for permitting-ready removal of a repaired` shoe;

3 ."I`n a machine of the classi described, the combination with a base havinga standard having "an end` plate, a head, means pivotally cnnecting the head with the end plate, said end plate having an arcuate face and a straight edge, said head having an opening provided with a slot,

straight edge, a shoe supporting element, a

plunger carried slidably in the head and operatively connecting the shoe supporting element with the head, a pin carried by the plunger and normally movable in the slot, resilient means carried bythe head, an operating lever, means i operatively `connecting the operating lever with the plunger and the resilient means, and an anvil carried by the base, said operating lever being movable in one direction for shifting the plunger and shoe supporting element for. clamping a shoe sole between the anvil and said shoe supporting element under the tension of the resilient means, said operating lever also being movable in the opposite directionfor raising the plunger and the shoe supporting element and freeing the shoe sole from between said element and anvil, said lever being further movable in the last-mentioned direction for clearing the pin from the slot and the straight edge whereby said pin will be permitted to tr-avel over the arcuate surface as the head is shifted 0n the pivotal means for disposing the shoe supporting element to a position for convenient removal of the shoe.

i 4. In a shoe repairing machine, a base having a standard formed with a bracket, said bracket having an end plate formed with a front face, an arcuate face, and a shoulder, a head, means pivotally connecting the head with the end plate, said head having an opening formed with a slot having an inner end normally alined with the front face of the plate, a plunger carried slidably in the opening of the head, a pin carried bythe plunger and normally movable within the slot,

` carriedby the basebeneath the Vshoe supportingV a shoe supporting element carried by the plunger, resilient means carried by the head, an operatinglever, and means-operatively connecting the operating lever with the plunger and with the resilient means, said plungery being shiftable in one direction for clamping a shoe sole beneath the shoe supporting element and under tension of the resilient means, said operating lever being movable initially in the opposite direction for raising the shoe supporting element, said operating lever being further movable for clearing the pin from the slot whereby said pin may be shifted along the arcuate face upon shifting of the head about the pivot means for engaging the pin with the shoulder and disposing the shoe supporting element to a position Afor permitting convenient removal of a shoe thereon.

5. In a shoe repairing machine as recited in claim 4, wherein the resilient means includes a stem, a collar on the stem, and a spring about the stem between the collar and a portion of the head.

6. In a shoe Irepairing machine, a head, means pivotally connecting the head with a bracket, said head having an opening and a recess, -a plunger slidable in the opening, a stem shiftable in the recess, a, collar on the stem, a spring between the collar and the upper limits of the recess, said head having a front wall formed with a slot receiving .a portion of the collar therethrough, a shoe supporting element, means operatively connecting the shoe supporting element with the plunger, an operating lever, means pivotally connecting the operating lever with the plunger, and a link having one end connected with the collar and the other end connected with the operating lever, said link having an offset lug, vsaid operating lever being movable in one direction for clamping a shoe Isole beneath the element under the tension of the spring, said tension being ycommunicated to the element and plunger through the collar and link and said op-- erating lever, said stem being shiftable against thetension of the spring, said operating lever being movable in an opposite direction for shifting the shoe supporting element to free a Shoe sole from 4beneath said element, said lug permitting shifting of the operating lever past dead center.

7.- In combination with a base having a standard provided with a web having flanges, and insulated studs carried by the flanges, an anvil having a frame formed with a depressed portion dening a well, said depressed portion having a thickened bottom wall formed with a recess, a heating element in the recess, contact springs electrically connected with the'recess and being removably engageable With the studs, and a resilient tread carried by the frame in overhanging relation to the Well and liquid therein, said tread defining a resilient surface for a shoe beingrepaired.

8. In a shoe repairing machine, a base, a standard on the base, a head on the standard, a shoe supporting element, means carried by the head and operatively connecting the head with the shoe supporting element, resilient means carried by the head, and an operating lever pivotally mounted on the head and operatively connected with the shoe supporting element and said resilient means, said Vlever being shiftable for clamping a shoe above the base and against the tension of said resilient means.

- HARRY R. MYERS. f

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