US1560360A

US1560360A - Shoe-supporting jack

Info

Publication number: US1560360A
Application number: US362365A
Authority: US
Inventors: Laurence E Topham
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1918-09-21
Filing date: 1920-03-01
Publication date: 1925-11-03
Anticipated expiration: 1942-11-03

Description

Nov. 3,1925- L. EY TOPHAM SHOE SUPPORTING JACK Original Filed Sept. 21. 1918 Il. n

Nov. 3, 1925' L. E. TOPHAM SHOE SUPPORTING JACK l original Filed sept. 21. 191s 3 sheetshegz 2 L. E. TOPHAM SHOE SUPPORTING JACK Nov. 3,1925.

Original Filed Sept'. 21. 1918 3 Sheets-Sheet 5 lllnl Patented Nov. 3, 1925.

UNITED STATES PATENT OFFICE.

LAURENCE E. TOPHAM, OF SWAMPSCOTT, MASSACHUSETTS, ASSIGNO'R T0 'UNITED SHOE MACHINERYCORPORATIQN, 0F PATERSON, NEW JERSEY, A CORPORATION OFr NEW JERSEY.

SHOE-SUPPORTING JACK.

Original application filed ASeptember 21, 1918, Serial No. 255,209. Divided and this application led March v 1, 1920, Serial No. 362,365. Renewed .Tune 15, 1922. Serial No. 568,581.

To all whom, it may concern:

Be it known that I, LAURENCE E. '.loPHAM,

a citizen of the United States, residing at jacks and, more particularly, to jacks for use in connect-ion chines. l

It is ordinarily required in automatic machines for operating on shoes that the shoe be located yin a predetermined position longitudinally of the jack before being clamped in position.

with automatic shoe malhe adjustment and clampii'ig of the shoeA on the jack usually are separate and independent operations and resulty in the expenditure ot' considerable labor and time. The proper adjustment ofthe shoe requires more or less care and when improperly performed an .imperfectoperation usually results.

The principal Objectis of the present inven` tion are to improve and simplify the con struction and mode ot operation of shoe supporting` jacks and to produce a novel and nnproved jack upon which ashoe may be quickly and easily adjusted in a. predetermined position and clamped in such position, and which will insure the proper adjustment of the shoe before it is clamped.

With these `t'eatu'resin view, the invention consists in certain novel and improved constructions, arrangements andV combinations of parts hereinafter described.; and particularly pointed out in the claims, the advantages ot' which will be readily understood and appreciated by those skilled in the art.

'The features of the invention will be clearly understood from the accompanying `drawings illustratingthe invention in its preferred term, and the following detailed description ot the constructions therein shown.

In the drawings Figure 1 is a view in front elevation, partly in section, of a jack embodying the invention; Fig. 2 is a view in frontelevation of the jack with certain of the parts in diti'erent positions from those in whichthey are shown in Fig. 1; Fig. 3 is a plan view of the jack; Fig..4 is a detail sectional view taken substantially on the line ,4-4 of Fig. 1; Fig.`5 is a detail sectional viewI taken substantially on the line 5-5of Fig. 1; Fig. 6 is a sectional View taken substantially on the line 6 6 ofFig. 2; and Fig.`7 is a view partly in front elevation and partly in sectioniillustratling certain parts of the jack.

The-jack illustrated in the drawimg is constructedl and arranged so that in jacking a shoe the. end of the toe of the shoe is located in 'a predetermined and unvarying Aposition lengthwise of the jack regardless of the size of the shoe placedy on the jack.

.The shoe is gaged with relation to the jack from the forward point in the bulge of the toeportion of the upper. The jack comprises a spindle 2, a concave toe rest 4 to receive the toe of the lasted shoe and a last pin 6 for insertion in the last pin hole in the last to support the heel end of the shoe. The toe rest is mounted` on the upper end ot the arm 8 on the jack frame. The last pin 6 is carried by a lever 10 pivoted at l2 on an upwardly projecting arm on a cylindrical slide 14 mounted to slide in a bearing or guide in the central portion of the jack frame.' The mounting of the last pin on the slide 14 enables the last pin to be moved ltoward or from the toerest bythe movement of the slide. The lever 1() is formed with a series of gear teeth which mesh with similar gear teeth formed on a lever-16 pivoted lat 17 on the slide 14. As shown clearly in Fig. 1the slide 14 has a central passageway or bore, and mounted to slide in vthis bore is a second cylindrical slide 18 also having a central bore. The slide 18 is connected with the lever 16 by means of a rod 20 mounted to slide through an opening in one ,end of the slide and pivotally connected at one end with'the lever, as shown clearly in Figs. 1 and 2. Surrounding the rod 2() within the slide 18 is a'comparatively heavy coiled spring 22 interposed between the end wall of the slide and a nut 24 threaded on the other end of the rod. The relative move* ment ot' the slide lSand the rod 20 under raclrteeth formed on the upper sidexofsthe;

slide 14, a ratchet wheelBlsecuretl'toithee,l l pinion slide 14 1s moved longitudinal'ly"in its" bearing in the jack frame during thejackingof.

the shoe by the longitudinal movement of the slide 18.'

carrying a pinion QSilthe teeth'of'fwhiehzmesh with' rackfteeth for-med on the lower side of' the slide: Tli'e-,slee ve26`is rotated manually.' j to'move the slide 18; Before@ jacking ashoethe slide 14- is adjustedin accordance. with the size of the-sl'ioeto-bel sewn, sothatV4 when the shoe'i'splaced onthe -jaek the'for ward endr of the toe' of' the shoe Willibe klo-i. z cated some distance back ofithe-foravardfend; ofE the toe rest.v

applied4 to the jack ioccupies the positionf dash linesiiry Fig. =1, -they bell'cranltfeeler lever 48pivoted at 50'l in a.

The upper arm of.`

'fhe lasted shoewhen first shown in dot and heeltend ofg'the shoe-being supportedzlby the A)last pin and thetoe of tlieshoefresting on the toeY support. vWithHthe shoe .thus ,located' on thejaclrthesleeve 26 isrotated iii aclockwise;direction`r (Figse 1 and thereby moving 'the slide I 18l to the right;

22, the rod- Q() and the Jlever lltends to swing thellever 10'v in the toe of thev` shoe.-

tothe slide 14 alongitudinal@movement to the right." This movement of theV latter slide carries the shoe forwardly with: rela-f.I tion to the jack, the toe ofthe shoe sliding.-` along the" upper surface. of! thetoeresti., rlhe movement offthe slide 14-lcontinuesfuntil Y the forward; pointfr ofl the bulge in thetoe.l

portion of thel upper reachesla-y definite fixed position `longitndinally ofthe jack whenthei slide is. positively.

movement 'of `the saidV` arrested.

The devicesv for thus arresting the mover' ment of the slidel comprisel aA pinionl 310',

mounted to'rotate in a suitable bore-in the.

30, 'and a sliding pawl '34 mounted inr a bore in thewjack'franie and arranged to engage the teeth oftheratchetwheel.- Thei pawl .is

wheel 32I in a The teeth on the ratchet wheel face ina direction suoli that the pawl when in engagement therewith will prevent rotation there- The;

4,the jack frame,

The lslide 18".'ismoved ylong;i-,-. tudinally by the .rota-tion' off-a sleeve., 26.- monnted to rotate in suitable bearings in 'the-central portion off-the jack., frame" and This i fu movement of the slide 18-tl1roughthe spring a direction. to depresse Theltoe of: the shoe..` however,Vv rests on the toe support so that it.. 2i cannot` be Vappreciabl-y" depressed. movement of the-slidelA therefore imparts;y

48% being located. i-nposition to be ,forward 1 by the forwardl then slide114 the bulge` ata the toe poriaclr frame and having itsl teethin'mesh with:v

normally 1 held i in Y engagement withf the ratchet wheel by a coiled springA 36:. The longitudinal movement of 'thief slide 14 to the right rin the jack frame will' rotate:r

, the pinion 30j and'vratchet' counter-clockwise' direction (Figsfl and 2:);

of in a counter-clockwise direction. 'lhe pawl is held out of engagement with the ratchet wheel during, the movement of the slide 1 4 to the-right=-bymeans; of.' av bell 'crank retainingleverBSfpivoted at. 40 on the part of said lever constituting the upper arm thereof having the formfgofa yoke ancltembracing the, jack franla-iis shown inligs. B. and 6." TheY lower arm of the retaining lever 38 is arranged to engage the end of a projection 42. formed onthe pawlat one sideof the, apexrthereof .to hold-theflpawl ontlof engagement; with ,theratehet -wheelasshown in Fig, 1.. The upper arm ofthe retaining leveris acted upony by. acoiled spring 4 4 whichtendsto swing: the vlever 1n; a direction to. elevate the lowerarm thereof. The upper armof the retaininglever is* engaged by?. the lower end of a1rod-=46mountedfto slide .longitudinally. in;l suitable guides. in fthe., arm. 8f on the-j aclrx fra-me. Thefupper.; end of the yrod is :engaged by the end of thelower arm of a central slot in the toe rest. thefeeler, lever 48 isflocated in position'to be .engaged by thebulgeinl the .toeport-ion of the nppenof a shoe applied to tlieejacl.

When the .shoe isinitiallyplaced on the jack the parts are located substantially in v'thefpositionsI shown in Figgl',` the pawl 34 being;;lield out of` engagement fwith the ratchetwheelll; by the engagement of the end; of"l the` lower arm of,I the. retaining lever ,38 with theV endoftheprojection 42 onthel pawlgand-.the :upper arm ofthe feeler lever engaged by the toe portion of the upper of theshoe asfthe-toe of! the shoezisunoved forwardly @along their-toetrest in jackingthe shoe.; AS .theslide14- ismoved forwardlyin the jack :framegby the-rotation of the sleeveQ and thefgearzA 28, thelipinion 30 and the. ratchet wheel 32 rotate in la. counter-clockwise 'direction (Fig..1); As the .shoeis moved movement of tion of th'eupper arln f of the,` feeler engagesy the upper lever 48, thereby swinginggthe; feeler lever on its. axis and lactimting,the rod L16T-and theretainnigglever 38, in a direction to l depress the. f lower farm ,of the 'latter'.llever. `Then the forward point inathe bulge `at;thetoe reaches a predetermined position longitudinally ofi the jack., theflendpofthe lower arm of. the retaining leverl 38vis disengaged from the. endof the p rojectionff42 on :thepawl 34; The pawl is then mofved; forward by its actuating spring into engagementwith `the ratchet wheel 32 thereby arresting the rotation of thera-tchet wheel and thevpinio-n SOand the longitudinal moveinent'of: the slidek 14. VAfter this occurs, the operator imparts a further rotation to rthe sleeve 26, thereby moving the slide 18 independently oi the slide 14, and through the spring 22 the rod 2O and the lever 16 the lever 10 is tilted slightly to press the toe ot the shoe tlrmly down against the toe rest. The movement of the sleeve 26 is continued until the spring 22 is somewhat compressed so that the spring will press the toe ot the shoe against the toe rest with considerable pressure to clamp the shoe to the jack. In order to prevent reverse or countenclockwise rotation of the gear 28, a pawl 52 is mounted to slide laterally in the jack frame and is arranged to engage ratchet teeth 511 formed on the inner tace oit a flange on the sleeve 26. The pawl 52 is held in engagement with the ratchet teeth 54 by a coiled spring 56 acting on a longitudinally movable rod 57 secured at one end to the pawl (see Fig. 5). The pawl 52 acting on the ratchet teeth 54 will thus lock the gear 28 and the slide 18 in position.

To enable the sleeve 26 to be turned by the operator, an operating sleeve 58 is mounted loosely on the outer end ot the sleeve 26, the sleeve 58 having radially extending arms 'termed upon .its outer end to enable it to be turned readily by hand. The sleeve 58 is connected with the sleeve 26 by means ot a screw 6() mounted in the sleeve 58 and having its inner end engaged in a slot 62 in the sleeve 26. The slot 62 has the shape shown clearly in Fig. 8. Thel shape ot the slot enables the sleeve 58 to be moved longitudinally ot the sleeve 26. To enable the pawl 52 to be thrown out ot engagement with the ratchet teeth 5st, a rod Get. is mounted to slide in the central bore in the sleeve 26 and is arranged to engage at its inner end a projection on the pawl. A coiled spring 66 is mounted on the reduced outer end of the rod 6ft and is interposed between a shoulder on the rod and a bushing 68 threaded into the sleeve 58, and having a central opening through which the rod passes. The inward inoven'ient. ot the rod 6i relative to the sleeve 58 limited by the engage-ment ot a collar TO mounted on the outer end of the rod with the bushing. lVhen the sleeve 58 is in its outer position on the sleeve 26, as shown in Fig. 6, the bushing 68 is engaged with the collar 70 and the rod 61 is held in its outer position in the sleeve 26, allowing the pawl 52 to be held in engagement wwith the ratchet teeth 54e by the action ot the spring 56. In jacking the shoe the sleeve 58 is located in its outer position on the sleeve 26, as shownV in Fig. 6. and is turned in a clockwise direction. Through the connection between the sleeve 58 and the sleeve 26 the latter sleeve is turned in a clockwise direction to actuate the slide 18 to locate the shoe in a predetermined position on the `iack and to secure the same in such position as above described. ln unjacking the shoe the sleeve 58 is pushed inwardly relatively to the sleeve 26-to en gage the screw 6() in 'the inner part of the slot 62, and is then turned in a clockwise direction. lVhile the sleeve 58 is moved inwardly relatively to the sleeve 26 the pawl 52 is held trom moving out ot engagement with the ratchet teeth 52.1 by the lateral pressure ot the ratchet teeth on the pawl due to the action ot the coiled spring 56, and the movement of the sleeve 58l compresses the coiled spring 66. c As the sleeve 58 is turned in a clockwise direction the screw 60 engages the right hand end or-.the inner part of the slot 62 which is formed to allow considerable lost `motion between the sleeve 58 and the sleeve 26 and the sleeve 26 turned against the tension exerted by the spring 22 thereby relieving the pressure ot the ratchet teeth 5ft on the pawl 52. The coiled spring 66 which is considerably heavier than the coiled spring 5.6 then moves the rod 64 inwardly in the sleeve 26 thereby moving the pawl against the action of the spring 56 to disengage the pawl 'from `the ratchet teeth 54. The sleeve 58 is then turned in a couliter-clockwise direction.. By this coluiter-clockwise turning movement ot the sleeve 58 the sleeve 26 is turned in a counterclockwise direction to actu-ate the slide 18 lirst to relieve the pressure ot the toe on the 9- toe rest, and then to move the slide Maand the shoe therewith rearwardlyot the jack traine so that the shoe may be readily removed t'rom thejack. To reset the pawl Sel and the retaining lever 38 in the positions shown in Fig. 1 the pawl is disengaged from the ratchet wheel by the turning movement oft the sleeve 58 in a counter-clockwise direction in unjacking the shoe. To this end a lever 72 is mounted to rotate on the sleeve 26 and is formed with a tork at its upper end .which embraces the head ot' a screw 74': mounted on the pawl 84. The lever 72 also formed with a cone-shaped recess 76 adapted to receive the cone-shaped inner end` o1 the sleeve 58. lVhen the sleeve 58 is in its outer position on the sleeve, 26, the inner eind of the sleeve 58 is disengaged :trom the recess 7 6, as shown in Fig. 6. Then the sleeve 58 is moved inwardly relatively to the sleeve 26 and is turned in a clockwise direction, the inner end ot the sleeve 58 is engaged in the recess 7 6 but is held outot contact with the lever 72 by the engagement ot the screw 60 with the inner edge ot the inner part of the slot 62 which is inclined as shown clearly in Fig. During the movement ot the sleeve 58 in a countenclockwise direction in unjacking the shoe said, sleeve `moves independently ot' the sleeve 26 carrying the screw 60 into the. left hand end ot the inner part of the slot 62. The inner end ot the sleeve 58 is then engaged with the lever 7 2 in the recess 76 and through the trictional engagement between the sleeve the shoe placed on the: jaclr It is also to' be noted that with this jack constructionthe operator'cannot jack the shoe without locating the shoe properl7 with relation y to the jack, the op" ration of the" mechanism tor securing the 'shoe on the jack being controlled by thef position oit the shoe.`

Having explained theA nature' aii'dobj ect oi' the` invention, and' having speciiicallyv de- ,i support to "ford-e' tli'etoe of the shoe againstone direction,

and toe rest relatively toward each other scribedVl a! jack embodying thefvarioustez..- t'ure's otx tlieinvention in' their preferred i forms; what'A is claimed is: y

l. i jack 'for shoe machines having, in

combination, heel-support, a toe rest, an', actuatingniember arrangedito operate during" a; continuous iiioveiiiciitA thereof, in one direction t'o 'adjust the shoe' longitudinally ot the and to clamp the shoe on the jack, mechanism tor stopliiingtheshoe adliiisting action and forcausing the initiation ot the shoe clamping action ot' said member', andn'ieans'for tripping said mechanismA when the shoe. is located in a pre@ determined position on the jack;

2. A' ]ackl foi" shoef machines having, iii combination, a lie'elisupportl and a. toe rest relatively movableto locateY the slioewith relation to the jack "and-'to clamp theshoe ontl'iejack, aL single'operatii'i'g member ar'- loaiti'iig" movements and the relative shoe clamping :n'iove'm-ents of the heel support an d toel rest" during a continuous movement ot said` member in oiie direction", mechanism tor 'stopping the relative 'shoe locatingmoi/en meiitot the heelsupport and t'oerest and relative shoe causing the initiation fot rthe clampingmovement ot' the saii'ie, and means for 'tripping 'said "mechanism when the shoe isY located in a predetermined position on the jack;

31 A jack forshoe machineshaving,y iii combination, a tilting heel suppoitand'aftoe rest i'elJtivel'vv movable; toward and from each other, an actuatii'igjmember operating during a continuous movement thereof in first to move the heel 'support to locatethe'shoev in a: predetermined position' oiithe. jack, andthen" to tilt the heelA l the `toe. rest and therebv clamp the shoe inatteso relatively movable toward and from each other, a member connected for actuation withe oiie ot said parts during their relative movement toward each other, and ashoe locating stop arranged to engage directly said member to stop the relative ii'ioifeineiit otfthe heel 'support and `toei'est toward each other when the shoe is loca-ted in a predetermined position on the jack.

A' jack 'for shoe machines'haviiig, in combination, aheel support, a toe rest, a slide' connected with one oit said parts, airotatable shaft, gearing connectingf the shaft andthe slide, aiatchet wheel mounted ou the shaft, a pawl orengaging the ratchet wheel normally held out oi engagement therewith, and means for throwingl in 4the pawl to stop the rotation oi the ratchet wheel and the movement' ot'the slide di uing the relative movement oi' the heel sup-- port and toe rest toward each other when the 'shoe is brought to a predetermined position relativev to the jack.

(i. .A jack for shoe machines having,`in combination, a heel supportI and a toe restr'elatively movable toward and trom each other, a slide upon which oney otsaid paris is mounted, a rotatable shaft, gearing con.- necting the shaft' andslide, a ratchet wheel mounted oiivafshatha pawl loi engagement with the-ratchet wheel, a. ieeler arranged to be engagedby thetoe of the shoe, and connections between the i'eeler and the pawl 'for holding" they pawl out of engagement withthe ratohetwheel when the toe ot'tlie shoe is locatedV out ot' contact. with the teeler and for causingl the pawl tofbe thrown f' into engagementfwith the. ratchetwheel to' stop 'the rotation thereof: and thc movement otthfelslide when 'the shoe is located iii a predetermined position oii the jack. y

7.' Ai jack for shoe machineshaving,- in comb`ination,aheelfsupport and a toe rest vrelatively movable toward and from each other, amember connected vtor actuation witli'oneo'f said' parts during their relative niovement,a stop for engagement withsaid niemberto arrest'the'i'elative movement of the heel support and toe rest toward each other normally located out ot position to engage Said member, a iieeler for engagement with the shoe, andconnections between-the feeler and ythe stoparranged to -liold the stopfo'ut of operatingposition while the shoe-fis out ot contact with the `teeler-,and to cause the stop to be thrown into 'operative Il il position when the ieeler is engaged and actuated by the shoe.

8. A jack for shoe machines having, in combination, a heel support and a toe rest relatively movable toward and from each other, a stop iter arresting the relative movement of the heel support and the toe rest toward each other, a 'teeler for engagement with the shoe, and connections intermediate the feeler and the stop tor controlling the action oi' the stop.

9. A jaclr for shoe machines having, in combination, a jack frame, a toe rest mounted on the jack frame, a slide, a heel support pivoted on the slide, asecond slide, connections including a spring intermediate the second slide and the heel support for tilting the heel support, and means tor moving the lirst slide to adjust the shoe longitudinally of the last and i'or moving the second slide to tilt the heel support in a direction to torce the toe of the shoe against the toe rest and thereby clamp the shoe on the j ack` 10. A jack for shoe machines having, in combination, a jack f ame, a toe rest mounted on the jack trame, a slide, a heel support pivoted on the slide, a second slide mounted itor movement in a direction substantially parallel with the lirst slide, connections including a spring intermediate the second slide and the heel support tor tilting the heel support, and means acting on the second slide and operating during a continuous movement thereof in one direction first to move the slides together to adjust the heel support toward the toe rest to locate the shoe in a predetermined position longitudinally oi' the last and then to move the second slide independently oi the lirst slide to tilt the heel support and thereby torce the toe of the shoe against the toe rest to clamp the shoe on the last.

11. A jack for shoe machines having, in combination, a jack trame, a toe rest carried by the jack -frame, a slide, a heel support pivoted on the slide, a second slide mounted for movement substantially parallel with the iirst slide, connections including a spring intermediate the second slide and the heel support for tilting the heel support, a rotatable shaft, gearing connecting the second slide and the shaft operating during a continuous movement of the shaft in one direction, iirst to move the slides together to adjust the heel support toward the toe rest to locate the shoe in a predetermined position lengthwise o the last and then to move the second slide independently ofthe first slide to tilt the heel support and thereby force the toe oi' the shoe against the toe rest to clamp the shoe on the jack, means forloclring the shaft in position, and an operating handle for turning the shaft and for disengaging the locking means.

v12. A jack for shoe machines having, in

combination, parts movable to a position to receive the shoe, and mechanism comprising connected cooperating elements coacting when actuated to move the parts to adjust the shoe from receiving to a predetermined position on the jack and clamp the shoe in adjusted position.

13. A jack for shoe machines. having, in combination, a pivotally mounted heel support and a toe rest relatively movable towards and irom each other, and mechanism comprising connected cooperating elements coacting when actuated to move the heel support and toe rest relatively toward each other to locate the shoe in a predetermined position on Vthe jack and to tilt the heel support to force the toe ci' the shoe against the toe rest and clamp the shoe on the jack.

11i. A jack for shoe machines having, in combination, a heel support and a toe rest relatively movable toward and from each other to adjust the shoe on the jack, and means for stopping the relative movement of the heel support and toe rest when the shoe reaches a predetermined position.

15. A jack 'for shoe machines having, in combinatioina heel support and a toe rest relatively movable toward and from each other to adjust the shoe on the jack, and means controlled by the shoe for stopping the relative movement ot the heel support and toe rest.

16, A jack -for shoe machines having, in combination, a heel support and a toc rest relatively movable toward and from each other to adjust the shoe on the jack, a eeler for engagement with the shoe, and means controlled by the feeler tor stopping the relative movement of the heel support and toe rest.

17. A jack for shoe machines having, in combination, a heel support, a toe rest, mechanism for relatively actuating the heel support and toe rest to adjust the shoe on the jack, and a Istop device acting on the actuating mechanism to stop the relative movement of the heel support and toe rest When the shoe reaches a predetermined position.

18. A jack for shoe machines having, in combination, a heel support, a toe rest, and mechanism comprising connected cooperating elements coacting when actuated to adjust the shoe longitudinally of the jack and thereafter clamp the shoe on the jack.

19. VA jack for shoe machines having, in combination, a heel support comprising a last pin, a toe rest, and mechanism comprising connected cooperating elements coacting When actuated to move the heel support and toe rest relatively to locate the shoe longitudinally on the jack and to clamp the shoe between the last pin and toe rest.

LAURENCE E. TOPHAM.