US2250678A - Machine for mounting shoes on lasts - Google Patents

Description

July 29, 1941. E. QUINN A MAHINE FOR MOUNTING SHOES 0N LASTS Filed March 28, 1939 9 sheets-sheet 1 July 29, 1941. E. QUINN x 2,250,678

MACHINE FOR MOUNTING SHOES ON LASTS Filed-March 28, 1939 9 sheets-sheet 2 50 /A/ l/f/v .rml Flg. @zum ma ma@ July 29, 1941. E, QUlNN 2,250,678

MACHINE FOR MOUNTING SHOES ON LASTS Filed March 28, 1939 9 Sheets-Sheet 5 July 29, 1941. E. QUINN 2,250,678 MACHINE FOR MOUNTING SHOESON LASTS Filed March 28, 1939 9`Sheets-Sheet 4 Flg. 6.

/A/Vf/ m5;

July 29, 1941. E QUINN 2,250,678

MACHINE FOR MOUNTING SHOES ON LASTS" Filed March 28, 1939 9 Sheets-Sheet 5 July 29, 1941. E. QUINN 2,250,678

` MACHINE FOR MOUNTING SHOES 0N LASTS Filed March 28, 1939 9 Sheets-SheetI 6 July 29, 1941. E, QUINN 2,250,678

MACHINE FOR MOUNTING sHoEs f'oN LAsTs Filed. March 28, 1939 9 Sheets-Sheet 7 6 Figll.

July 29, 1941., E. QUINN MACHINE FOR MOUNTING sHoEs oN LAsTs 9 Sheets-Sheet 8 Filed March 28, 1959 j; /Zfg Jly 29, 1941.

E. QUINN n MACHINE FOR MOUNTING SHOES 0N LASTS Filed March 28, 1959 9 Sheets-Sheet 9 I /A/VE/vm/L W wm Patented July 29, 1941 MACHINE FOR MOUNTING SHOES ON LASTS Edward Quinn, Malden, Mass., assignor to The Del-Mac Shoe Process Corporation, New York, N. Y., a corporation of New York Application March 28, 1939, Serial No. 264,598

12 Claims.

This invention relates to machines for mounting shoes on lasts and is herein illustrated and described as embodied in a machine suitable for operation upon shoes of the type disclosed in United States Letters Patent No. 2,107,502,

granted February 8, 1938, upon my application. While the shoes disclosed in said Letters Patent are assembled off the last, the present invention is also applicable to the relasting of turn or McKay type shoes. In either case the practice of the invention is of particular advantage in cases wherein the operation mustJ be performed without unduly straining the shoe.

Previous relasting machines, for example, machines of the type Letters Patent No. 1,856,291, granted May 3, 1932, on the application of Arthur F. Pym, are intended to operate upon one-piece lasts. However, wherever strain must be particularly avoided it is desirable to employ hinged r separable lasts. Machines of the type disclosed in the above-mentioned Letters Patent to Pym can operate to advantage upon such lasts only if some provision is made to prevent the last, when straightened, from being broken again by the x pressure which these machines apply to the shoe bottom.

An object of the invention is to provide an improved machine for mounting shoes on lasts.

In accordance with this object a feature of the invention comprises an automatic means for operating a shoe horn to seat the heel end of a shoe upon a last, and means controlledV directly by the operator for causing the horn to perform a relasting operation upon the heel end of the shoe in advance of the operation of the automatic means. After the operation of the horn a power driven roll may be applied to thebottom of the forepart of the shoe to urge the shoe rearwardly on the last and thereby take up looseness in the toe portion. As illustrated herein the improved machine is provided with a locking member in the form of a wedge which engages both the forward and rear sections of the last to hold the last in straightened condition.

Other objects and features of the invention will be apparent from the following description, reference being had to the accompanying drawings, in which Fig. 1 is a vertical sectional view of the improved machine;

Fig. 2 is a vertical sectional View of a portion of the interior mechanism of the machine; Fig. 3 is a sectional view in a plane taken on the line III-III of Fig. 1;

disclosed in United States Fig. 4 is a vertical sectional view of the mechanism for holding the last pin;

Fig. 5 is a side elevation of a portion of the mechanism shown in Fig. 4;

Fig. 6 is a view in vertical section taken on the line VI--VI of Fig. 1; and

Figs. 7 to 14, inclusive, are views illustrating consecutive stages in the operation of mounting a shoe upon a last.

In the drawings, L designates a last and S designates a shoe which is being mounted on the last. The last herein illustrated is of the two-part hinged type and is shown as mounted upon a last pin P with which the machine is provided. A shoe horn I-I interposed between the shoe and the last rocks about the heel end oi the last to draw the counter portion of the shoe over the last and a rubber roll R rotates against the bottom of the forep-art of the shoe to urge the shoe rearwardly upon the last. The roll R and horn H Iare arranged to be operated in timed relation to each other by a power-driven cyclically controlled mechanism. Provision is made, however, for enabling the operator to control the rotation of the roll R independently of the cyclic mechanism and also to operate the horn H directly through a foot'treadle before initiating. the operation of the power-driven mechanism which then serves to continue the movements of the horn and eventually to return the various parts to their initial positions.

The supporting structure of the machine comprises a housing` which eneloses the greater part of the mechanism for operating the roll R andthe horn H and which has an upward gooseneck extension 22 which carries the .last pin P.

The lastpin P` (Figs. l and 4) is secured in -a carrier 2li which is pivotally mounted upon a pin 25 secured in a downward extension 26 of the gooseneck 22. The last pin is normally held up at an angle slightly above the horizontal, as shown in Fig. 7, by a spring 28 housed in a bore 'formed in the downward extension 26 and acting upon a rod 30 connected to the carrier 24 through a link 32. The carrier has formed in its upper portion a notch 34 engageable with the lower end of a plunger 36 to latch the carrier in the position shown in Fig. 8 wherein the last pin extends downwardly. The plunger is normally held down by a spring 38 and may be raised by hand through a finger 40 and may also be raised automatically, as will laterr beY described, through a finger 42. The mounting of the last pin VP and the provisions abovedescribed for latching it in its operative position last when the last is open to hold the last positively against breaking The block 44 .is channel shaped in cross section, consisting of a pair of parallel walls connected byi a bridge .45.. Formed on the outer surface of the bridge 45' are serra.'

tions 43. Similar serrations 48 are formed on the rear edges of the walls of the block. These serrations frictionally engage the adjacent surfaces of the two sections of the last to prevent the block from being forced out. The block 4'4 ispivotally mounted upon the lower end of a depend'- ing link 48 which extends into the space between the walls of the block, the upper' end of the link 48 being pivotally mounted uponT a slide 5'0. A bracket 52 secured upon the gooseneck 22 carries a vertical channel shaped guideway 54' for the slide 50. The bracket 52 has a' central relatively narrow open-ended s1ot,. the upper end of which is indicated by the reference character 53,

to accommodate the link 48. The guideway 54, which bridges this slot, is secured to the bracket 52 by four screws 55. A spring pressed latch 56 (Fig. 5) pivotall-y mounted in the guideway 5'4 engages a notch in the slide and thus normally Y.

holds the slide. in an upper or inoperative position. A block 51 secured to the slide 50 prevents the slide from dropping out of its guideway when the latch is disengaged'. 'Ihe slide is provided with a hook 58 to facilitate its being raised by the operator to its inoperative position.

The power by which the machine is driven is transmitted from any convenient source through a chain 62 (Fig. 2) to a continuously rotating shaft 64 journaled inv bearings carried by .the housing. 20. A worm 66 which is freely rotatable upon but -is held against endwisemovement with respectto the shaft 24 engages a worm wheel 68 xed upon a cam shaft 18 also journaled in bear- .ings carried by the housing 20. A worm wheel 1| rotating in a housing containing lubricant engages the worm 68 for purposes of lubrication.

yThe worm 66 may be driven through a clutch mechanism comprising a clutch member 12 xed upon theshaft |54 and. a clutch member 14. frictionally engageable with the member 12 and free to slide an-d rotate upon the shaft 64. The loose clutch member 14 is urged into engaging position by springs 16 and drives the worm 66 through a tongue and slot connection. The clutch member 14 is normally held out of engagement by a bell crank lever having an arm 18 which carries a pair of pins engageable with an annular groove in the hub of the clutch member. The above-mentioned bell crank has a second arm 80 which carries a tripping lever 82 normally held down by a clutch control lever 84 which is connected through a link 86 to a lever 88 carrying a cam roll 90. A cam 92 on the shaft 1:0 engages the roll 90. A starting treadle 94 operates through Ya link 95 to trip the lever 82 and thereby release the clutch member 14 from control of the lever 84, whereupon the springs 16 urge the clutch member 14 into engaging position. The treadle .94' is normally held up against the end of a slot in the frame 20 by a spring 93. The worm 66 thereupon begins to rotate and drives the shaft 10 through the worm wheel 68. It will be observed that the cam 92 has three rises, each of which may hold the cam roll 90 in a position to hold the lever 84 down. As soon as the cam 92 begins to rotate, the lever 88 is enabled to swing in a clockwise direction, thereby enabling the lever 84 to rise. When the treadle 941 has been released the lever 84 will thus be raised high enough to .enable the tripping lever 82 to come into a position wherein an ear on the tripping lever is directly under alug on the control lever 84. Further vrotation of the cam 92 will cause the next rise ofthe cam toV depress the control lever 84 thereby rotating the bell crank 18, in a counterclockwise direction to dlsengage the clutch, thereby stopping the rotation of the cam shaft 10. A stationary brake band carried by a bracket 9| engages the clutch member 14 as soon as the latterhas moved'` away from the clutch member 12. The clutch mechanism above described' is substantially like thatv disclosedin the above-mentioned Letters Patent No. 1,856,291. Itis thus .evd'entthat'each cyclef ofoperations is initiated .by depressing the treadle 94. and terminates automatically upon rotation of the cam shaft throughal: predetermined angle.

In order to enable the. roll' R; to. be raised? from lan inoperative postioninto engagement with the bottomiof the torepart of the shoe S there is pro'- vided a bracket 9.6Y which. is pivotally mounted for swinging movement. about a stationaryv shaft; 98 ixed in the upper portion of the housing 20. The roll R. iscarried upon a shaft E00@ .which is journaled: in bearings carried by aslide |82: on the bracket 96, the slide; .being movable for adjustment toward and from the shaft: 98. Such adjustment ofthe slide. |02l is effected through a shaft |04 journaled in the upper portion of the housing .28 and having a Ahan-d ,wheell [06 by which -it may be turned'. Secured upon the shaft |04 is a worm .|08 which. engages a worm wheel ||0 freely rotatable upon the .shaft 98. Securedlto ftatablegupona shaft |22rmounted in the vcarriage |20. A. second pinion. fixed to the hub of the rst engages rackteeth formed on the under 'surface ofthesli-dey i'ztosmove the slide relatively to the .bracket 96.. The above-described mounting ofthe roll R' and the provision for its adjustment are similar -to the corresponding arrangements .disclosed in the. above-mentioned Letters Patent N o. 1,856,291.

To provide for raising and lowering the roll R, a rod |24 is. pivotally connected atv its upper .end to. the bracket 96. The lower end of the'rod -|245is. freely slidable through a sleeve |26 which vis trunni'on-edv upon the end `of a lever |28. It will be observed that the lower portion of the rod |24? is withinthe housing 20, while the upper .portion passes throughr an opening |30' formed in the housing 20; `A sleeve |32 is slidably mounted upon the rod |24 at a considerable .distance above the sleeve |26. Securely xed in `the sleeve |32 and extending diametrically thereacross is a pin |34 which engages the lower `end `of a rod |38 threaded axially through the upper portionof the rod |24'. Av compression spring |40 surrounding the rod |24. is interposed between the sleeves |32 and |26.. urgng'the sleeve '|32 upwardly as far as permitted by the engagement of the pin |34 with the rod |38. A collar |42 secured upon the lower end of the rod |24 engages the lower edge of the sleeve |26 and thus retains the rod |24 within the sleeve. Adjustment of the compression of the spring |40 is effected through a hand wheel |44 carried by the rod |38. In order to provide for adjustment of the bracket 96 relatively to the rod |38 the rod is not connected directly to the bracket but is threaded through a sleeve |46 which, in turn, is pivotally connected to the bracket. The lever |28 is fulcrumed upon a fixed shaft |48 secured in the lower portion of the housing 20. Secured in fixed relation to the lever |28 for swinging movement about the fulcrum |48 is an arm |50. A cam roll |52 carried by the arm |50 engages a rotary cam |54 securely fixed upon the shaft 10. It will be evident that rotation of the cam |54 will rock the lever |28 to transmit a thrust through the spring |48 and thence through the upper portion of the rod |24 to swing the bracket 86 upwardly about its fulcrum 98. The abovedescribed construction for raising the roll R is similar to the corresponding arrangements disclosed in United States Letters Patent No. 1,930,487, granted October 17, 1933, upon the application of Harold S. Pym et al.

YRotation of the roll R is effected through mechanism comprising beveled gearing |56 driven by a shaft |58 journaled in the carriage |02. The lower end of the shaft |58 is connected through a universal joint to an extensible telescoping shaft |60 the lower end of which, in turn, is connected through a universal joint to a vertical shaft |62 journaled in bearings carried by the housing |20. Upon the lower portion of the shaft |82 is secured a worm wheel |64 which engages a worm |86l mounted for free rotation upon the continuously driven shaft 64. The worm |66 is driven through a friction clutch |68 which is operated through a lever |10 fulcrumedupon a pin |1| carried by a stationary bracket within the housing 20. Extending from the lever is a forked arm |12, the two branches of which are pivotally connected to the lower ends of a pair of parallel links |14, one `of the links being visible in Fig. 2. The upper ends of the links |14 are pivotally connected to a sleeve |16 surrounding a vertical rod |18. The rod |18 is freely slidable and rotatable in bearings |80 carried by the housing 20, and may turn freely within the sleeve |16. A pair of collars |82 and |84 secured `to the rod |18 in abutting relation to the respective ends of the sleeve |16 cause the sleeve to partake of the vertical movements of the rod. Threaded upon the rod |18 below the collar |84 is a nut |86.V Slidably mounted on the rod |18 some distance below the nut |88 is a block |88. A collar |90 secured to the rod A|18 below the block |88 limits the downward movement of the block relatively to the collar. A compression spring |92 surrounding the rod |18 and interposed between the nut |86 and the block |88 normally holds the block down against the collar |90. The rod |18 is free to turn within the block |88, the block, however, being held against turning byra guide post |94 upon which it is freely slidable. The compression of the spring |92 may be adjusted by turning the rod |18 within the nut |86, the upper end of the rod .being squared, as indicated by the reference numeral |96 to facilitate turning. The nut v| 86 hasa squared portion which slidably engages two guide lugs 2 00 on the inner wall *ofV the housing 20 to keepthe nut from turning. Av pair of studs 202 are provided to Vprevent the nut |86 from being disengaged from the threads on the rod |84. These studs are threaded `into the nut |86 on opposite sides of the rod |18 and have smooth shanks which' slidably engage openings in a Vplate 204 whichsurrounds the collar |84. and rests upon aflange formed on the lower in diametrically opposed relation a pinion (not.

shown) mounted for free rotation on the block |88. 'I'his arrangement enables either rack bar tobe raised even if the other is stationary, in which case the pinion will roll up on the stationary rack bar and raise the block |88, Ythus transmitting a yielding thrust through the spring |92 into the rod |18. One of the rack bars is connected bya link 208 to one arm ,of a lever 2|0 fulcrumed upon a. stationary shaft 2|2. v The lever 2|0 has another arm carrying a roll 2|4 which engages a cam 2|6 secured upon the shaft 10. A spring 2|8 normally holds the roll in engagement with its cam. Rotation of the cam shaft 10' will thus cause the friction clutch |68 to engage automatically at a predetermined point in the cycle of operations. The other rack bar is connected through a similar link to a treadle 220 by which the operator can engage the friction clutch, |68 at will. v The treadle 220 is normally held up against the end of a slot in the frame 20 by a spring 2|9. The above-described mechanism for rotating the roll R and for controlling the rotation thereof Vis substantially like corresponding mechanism disclosed in the abovementioned Letters Patent No.V 1,856,291. Attention is directed particularly to Fig. 13 of said Letters Patent for a showing of a similar arrangement of a pinion and two operating racks. u

The horn H is pivotally mounted for swinging movement upon avpin 22| carried by a bracket 230 mounted upon the upper end of a tubular rod 224. 'I'he lower portion of the rod |92 is in telescopic engagement with a rod 226 the lower end of which is fulcrumed upon a stationary shaft 228 secured in the lower portion of the housing 20. A tension spring 222 having its lower end anchored within the rod 224 and its upper end secured to a tail 232 extending from the horn H yeldably urges the horn upwardly about the kpin 22| to a stop position. 'I'he movements of the horn H are derived from two components one of which is represented by the sliding movement of the tubular rod 224 on the rod"226 and the other of which is represented by the rockingof the arm 226 about its fulcrum pin 228. The tubular rod 224 may be raised on the rod 226 by mechanism comprising a lever 234 (Figs. 1, 3 and 6) fulcrumed at one end upon a stationary shaft 238 and having a forked opposite end to which are pivotally connected two parallel depending links 238 on opposite sides of the rod 224. The lower ends of the links 238 are pivotally connected to a sleeve 240 adjustably clamped upon the r 0d` 22 8.V The intermediate portion ofthe lever 234 carries a roll 242 which engages a cam 244 secured? upon. the shaft 1.8.. A spring. 24.5 normally 'holds the roll 242against the .cam 244., yIt isevi'dent. that rotation of the cam. 244 will operate to raise the rod 224. and to enable `it to descend. To enable the rod` 2.261 to be'rocked about thefulcrum 2.281thereis. provided alongitudinatslot 245 (Fig. '6.) in the tubular rod' 224 through which extends an -ear 246 secured. to the rod 22.6'. Pivotally connected'to the ear.v 246 is. Aone end of a link. 248v the oppositeverid of which is pivotally connected to a sleeveV 250 which, .in turn, is adjustably mountedfon a. sleeve 252|' carried upon a .rod 252 (Fig.. 6) Collars secured. to the rod 2:52 at the `endsof thesleeve 25| hold the sleeve against axial movement relatively to the rod while enabling the rod to. turn freely within the sleeve. Movement of' the rod1252 to the left, as viewed in Fig. l, is accomplished through a link `254 pivotally connected at vone .end to a sleeve 256 and at its other end to one armofa lever 258v fulcrumedupon the pin 236. Theother armof' the lever 258 carries arollZ which engages Aacam 262 mounted' uponv the shaft 756. A spring v263 normallyv holds the roll 260 on the cam 262'. Threaded upon an end portionlof the rod 252 is a nutv 26'4. which4 sl-idably engages the interior of a bearing 226 carried by the housing 20. The nut 264is'keyedto the bearing` to prevent turning. Surrounding the rod 252 and interposed between the sleeves 256 and the nut 264 is a compression spring 268 which yieldingly transmits the thrust of `the sleeveY 256 into the rod 252. A collar abutting the sleeve 251 holds the sleeve 256- against the thrust of the spring 268. The rod 252 is keyed to a spiral gear 210 the hub portion of which is mounted in a bearing 222' carried by the housing 2U. A collar 273" secured to the hub of the gear 210' engages an annular slot in the bearing 2112 to holdthe gear against endwise movement. A gear 2T41 engaging the gear 210 maybe turnedby a hand wheel' 216 to cause rotation of the rod` 252' in the nut 264; thusA varying the compression of the spring 268. The horn H above mentioned and also the mechanism as so far described for operating it are similar to corresponding mecha-1 nism described in the above-mentionedy Letters PatentNo. 1,856,291.

As has alreadybeen. mentioned, the horn H 'maybe operated directlyby a treadle as well as byk the automatic mechanism, the two components-of movement-being imparted to the horn bymechanism which will nowbe described. Extending from one of the links 238 is a lug 218 throughwhich passes a cable-280. One end of thel cable 288LV is secured to -a block 282 below the lug 2181- A spring 84 anchored at its lower end to a portion of the housing 20 and secured at its`- upper' end to the -block 282 exerts a downwardtension upon the cable. The cable passes upwardly through the lug 218 past a guide pulley 283^mounted on a studwhich. pivotallyconnects the adjacent link 238 tothe lever 234 and thence upwardly around a pulley 288-and thence downwardly outside of the housing 2U to a slide 289 (Fig. 3)A to which is secured a treadle 290. For convenience the wall ofthe frame for this locality consists of a door 292 hingedon pintels 294 ('Fig; 6l) carried: by' the housing 20. The door 293-ma-y be held shut by a hook 295 engaging theinner' w-all of the housing 20. The hook 295 has a round shank which may be turned from the outside to disengage it. The portion of the treadle extending within the g-uidewayis retained therein by gibs 296. It i-'s evident that depressionof the treadle 290i will cause the cable 286 to..liiit.`the block 282.against the tension of. the spring :284 .into contact with the under surface .of the. lug 2'l8..to raise the link 238 and thereby .the .tubular rod224. In order to obtain the properly: related. component of swinging movement aboutthefulcrum; 22B-.there is provided a wedgeshaped cam 298: having an inclined surface engageable with a roll 300. Pivotally mounted uponthestuds which connect the links 238 to the lever'234 is a yoke 3824 in which is secured a studi 384. upon which the roll 300 is freely rotatable'. vAbearing memberY 366 carried by the yoke .302;.engagesl the tubular rod 224. As the treadle 296. is depressed to raise the horn H the yoke 302 wi-ll alsov be raised, causing the roll 380-l to travel upalong the inner surface of the door 292 and then: upl the inclined' surface of the cam .298, thereby'rocking the rodk 224-in a counterclockwise direction Aas viewed in Fig. 1. A tension spring 388 "interposed between the yoke 302 and the sleeve 2flholds the'cam roll 380 against the surface of the door or against the cam. 298 during the upward movement of the roll. The cam 298 is .pivotally mounted at its upper or thick end Auponsa stud 3mi carried upon a slide 3I2 which extends through a slot-313 formed in the door 292. The slide 31 21 is adjustable in and out, or to the right. and left, as seen in Fig. 1, being slidable 'in a guideway formed in a second slide 3I4, which, inf turn, is slidfable for purposes of adjustment in a vertical guidew-ay 3|5 formed on the outside ofthe door 292. The lower or thin end o1" Athe-cam 298 rests against the inner surface of the door 292. The door 292 above the thin edge of the cam 298' is bulged outwardly, as indicated by the reference numeral 346. As soon as-I the `roll 308- in its upwardtravel passes the upper end of the cam 298-r the` spring 308 causes it to move to the right, as. viewed in Fig. 1, until itengages the inner surface of the bulged portion 3HE of the wall. The cam in its descent may now pass between the inner surface of the Wall and the cam 298, the inner wall of the door sloping gradually as the roll descends to enable the ro'llfto push the-caml 298 to the left out of its way untilit is past the thin end of the cam, whereupon afspring 3'8- draws the cam to the right until the thin end again rests against the unbulged portion of the door 292.

The operation of mounting-the shoe S upon the hinged last L by the use of the machine disclosed herein will nowV be described. The toe end of the last is loosely inserted into the shoe while the last is in broken condition and the last is then mounted upon the last pin P while the latter occupies its uppermost or out-of-the-way position. If desired, the last may be mounted upon the last pin before the shoe is loosely mounted upon the toe end o f the last. Referring to Fig. 7, it'will be observed that the toe end of the shoe is inclined somewhat from the vertical tov enable it to clear the-slide 50- and the guid'eway 54. 'I'he roll R and the horn H will occupy their normal, or lowermost positions, as shown in Fig. l. The operator then swings theA shoe and last downwardly about the pin 25y to the position indicated in Fig. 8, turning the last about the last pin to bring the heel end of the last into alinement with the horn H. The horn H is raised by depression of the treadle 29|! to such a height as to cause the heel end of the last in its downward swinging movement to engage the horn tangentially, the spring 222 permitting the h orn to yield slightly. When the last pifn has reached its lowermost position the lower end of the rod 36 will snap into the recess 34 .to

V lock the last pin in operating position. The horn H, as shown in Fig. 8, will now press against the bottom of the heel endof the last. The extent to which the horn overlaps the last bottom depends largely upon the adjustment of the sleeve 25D along the sleeve 25| and upon the adjustment of the slide 3 l2 in its guideway. The most desirable heightwise position of the last for the fulcruming of the horn about the heel end of the last may be determined by a stop nut 23 threaded on the last pin 1and engageable with the cone of the last. The operator now further depresses the treadle 290, causing the horn carrier 230 to rise and rock about the heel end of the last bottom until the horn begins to engage the interior of the shoe upper. The operator will now feel the resistance of the shoe through the treadle and will govern the pressure he is exerting through the treadle accordingly. While the operator is thus actuating the horn through the treadle he will press downwardly upon the toe portion of the shoe with his right hand, as indicated in Fig. 9, guiding the heel end of the shoe upwardly with his left hand. The downward pressure of his hand, together with the force exerted by the horn, will cause the broken last to straighten. The operator is enabled to coordinate the work done by the horn H with that done by his hands, applying greater or less force wherever required as the operation progresses. After the last has been straightened he depresses the treadle 29D until it touches the floor, and holds it there. Such operation of the horn through the treadle 290 will cause the rolls 242 and 260 to be raised from the cams 244 and 262 respectively. The last and shoe will then occupy the position indicated in Fig. 10 with the heel end of the shoe partly drawn over the last and with the horn, using the last as a fulcrum, exerting a rearward pull upon the heel end of the shoe upper. The operator can now observe if the shoe is properly alined relatively to the last and if twisted he will straighten it by hand.

Although the shoe is now partially mounted upon the last there is still some looseness between the toe portion of the shoe and the last. It is undesirable to rely upon tension alone to draw the shoe rearwardly upon the last to take up this looseness because of the danger of unduly stretching or otherwise damaging the shoe. The

operator now trips the latch 56, enabling the wedge block 44 to drop down into the space between the forward and rear sections of the last L. The block 44, by reason of its pivotal connection to the link 48 and by reason of the link 48 being pivotally connected to the slide 50, will automatically nd its way into the space between the sections of the last. The serrations 46 and 48 now hold the last securely in straightened condition. 'I'he operator then depresses the starting treadle 94 to initiate the rst cycle of operation of the machine. The automatic operation of the machine brings the roll R up against'` the bottom of the forepart of the shoe with considerable pressure and the roll rotates against the shoe bottom tovurge the shoe rearwardly on the last and the first cycle of operation automatically ends. After the termination of the first cycle the operator again makes sure that the shoe is not twisted in relation to the last, and he may tap the toe portion-of the shoe or manipulate it in such manner as may be required. The operator may then depress the treadle 220 to cause further rotation of the roll R if called for.

In many cases however it is desirable to disylO pense with the automatic rotation of the roll R, which may be done by simply removing the cam roll 2 I4 together with the stud upon which it rotates. The roll R can now be rotated only by depressing the treadle 220, which operates by causing the link 20B attached to the treadle rod (Fig. 2) to exert a direct thrust against the under surface of the block |88. The rst cycle of automatic operation will now merely bring the roll R into operating position without rotating it. After the termination of the` first cycle the operator causes the roll R to be rotated under his direct control, the degree of pressure which he exerts upon the treadle 220 determining the amount of force which can be transmitted through the roll R before the clutch |68 slips. The shoe is thus urged rearwardly on the last to take up all looseness at the toe portion. No movement of the horn takes place at this time except, perhaps, a slight yielding movement as the longitudinal tension in the shoe slackens.

The second cycle of operations is initiated by again depressing the starting treadle 94. Rotae tion of the cams 244 and 262 eventually will bring their raised portions into engagement with their respective rolls, and thus cause the horn I-I to be controlled by the rotary cams. In the course of this cycle the horn I-I isV raised automatically from the position shown in Fig. 11 to that'shown in Fig. 12, drawing the heel end of the shoe completely upon the last. During the latter stages of this cycle the roll is retracted from the shoe bottom. The horn in its upward movement is withdrawn from between the shoe and last and as it continues upwardly it engages the nger 42 and raises the latch rod 36, enabling the spring 28 to swing the shoe lupwardly toward out-of-the-.way position. In Fignl the shank of the horn I-I and the pin 22| are shown in broken lines at their uppermost positions. The spring metal plate 43 serves as a Aguide for these parts as they move upwardly. The second cycle now terminates, and the operator now removes the last and shoe from the last pin and from the wedge block 44 which readily disengages as the Vshoe and last are withdrawn.

The starting treadle is depressed once more to initiate the third and last cycle of operation, wherein all the machine parts are automatically returned to their initial positions, with the exception of the wedge block 44 which is raised manually.

In mounting the next shoe upon itsl last the operator, if he so desires, canvkeep his foot on the special h orn treadle 29)y before initiating the last cycle. By reason of the direct control which the special horn treadle gives him he can let the horn down to a position suitable for engagement with the heel end of the last while the last is swinging down into operating position.

It may be observed that the improvements* of the machine described herein do not in any Way prevent the machine from being used for operations upon one-piece lasts in the manner of the machine disclosed in the above-mentioned Letters Patent No. 1,856,291 if it is desired to do so. 'I'he illustrated machine can also be used with lasts of the self-locking type. In such cases the wedge block 44 will not be used. v

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In a machine for mounting-shoes on lasts,a shoe horn, automatic means for operating said horn to seat the heel end of a shoe upon a last,

and means directly controlled by the operator for causing said horn to perform va relasting operation upon the `heel lendfof the shoe in advance of the operation of said automatic means;

2. -A machine for mounting shoes on lasts, comprising a support for a last with a shoe loosely mounted thereon,"a horn, power operated means for rocking said horn about the heel end of the last to draw the `shoe on the last and for withdrawing the horn from between the shoe and the last, and treadle operated means for effecting said movements of the horn independently of and in place `of said Vpower 'operated means to enable the operator to move the horn under direct control before starting said power operated means.

3. A machine for mounting shoes on lasts, comprising a support for a last with a shoe loosely mounted thereon, -a horn, a carrier upon which said horn is vyieldingly mounted for rocking movement, a pair of driven .rotary cams, mechanism operated by said cams for 'causing said carrier to move the Ehorn to draw the lshoe over vthe heel 'end of the last, one of said cams serving to impart to Vsaid carrier a heightwise component of movement and the other cam serving to impart a vlengthwise component relatively to the last, tr'eadle operated means for raising the carrier independently of said cams, and a stationary cam for imparting to said vcarrier `a component of movement lengthwise of the shoe as the Lcarrier is raised by the treadle to enable the horn to perform `anoperative movement Aunder direct control of vthe'operator vbefore causing the horn to be moved by said rotary cams.

A4. In `a machine for moun'ting Ashoes on lasts,

a support for a last, a shoe horn, a carrier for said shoe fh'orn, a lever on which `said carrier is mounted fior longitudinal :movement with respect thereto, a fulcrum Vfor said lever, means for moving Asaid carrier along said lever to impart an operative movement to said shoe horn whereby t-h'e counter portion'of a'shoe loosely mounted on the last 'is drawn over the heel end of the last, a 'stationary cam, and `means including a member engageable with said cam and movable with said carrier for swinging'said carrier about said fulcrum vto control `the 'direction 'of the operative movement `of the horn to best advantage.

5. In a machine for mounting shoes on lasts, a support for a last, 'a shoe horn, a carrier for said shoe horn, a lever on which said carrier 'is -telescopically mounted for 'free longitudinal Vmovement, a fulcrum for said lever, means`for moving saidcarrier along said lever 4to impart an 'oper-ative movement to sai-d yshoe horn whereby the counter portion o'f a 'shoe Aloosely mount-ed on the last is rdrawn Aover the heel end of the last, a stationary cam, Va roll 'engageable with 'said cam and :movable with `said Acarrier arrangedvr to swing said carrier about 'said fulcrum tocont-rol the-direction -of the operative movement of the horn to best advantage, andv yieldable means for urging said 'leverin a ydirection vto hold said roll against said cam.

6. In a machine formountin'gshoes on lasts, a support .for Aa last, a shoe horn, a carrier for said horn, a llever on which said 'carrier is telescopically mounted for longitudinal movement, a fulcrumffor said lever, a treadle, Aa-cable `connecting said treadle with said carrier, guide means `for said cable constructed and. arranged to cause the cable to raise said carrier upon depression of said -treadle, the raising of said carrier serving -to move the horn 'operatively to draw vover the heelend of the last the counter portion of a shoe loosely mounted on the last, a roll engagel able with said cam and movable with said carrier larranged to swing said carrier about said fulcrum to control the direction of the operative movement of the horn to best advantage, and a spring acting on said lever to urge the roll against the cam.

7. A machine for mounting shoes ron lasts comprising a `support; for a last with a shoe loosely mounted thereon, a roll constructed and arranged to seat the forepart of the shoe on the last, a horn for-.seating the rear part of the shoe on the last, cycl-ically operating mechanism constructed and arranged to cause the roll and the horn to seat the shoe on the last, and a treadle mechanism for enabling the operator to operate the horn under direct control independently of and in place of said cyclically operating mechanism.

8. In a relasting machine, a support for one section of a hinged last, a member constructed and arranged to engage both sections of the last Wh'enfthe last is in a straightened condition to'prevent breaking of the last, and a support for said memberfconstructed and arranged for movement of the member between operative and outo-the-way positions.

9. In a relasting machine, a rlast pin for supporting the heel section of a hinged last, a member constructed and arranged to enter the space between the two sections of the last to maintain the last in straightened condition, a vertical guideway, a lslide in said guideway, a link depending from-sa'id slide, said member being pivotally mounted on said slide, and a latch for holding :said slide .up in an out-of-the-way position, said gguideway-being arranged to enable the slide when unlatched to drop -into a position wherein said member Yenters the space between the two sections of -a straightened last on said last fapin.

`1-0. Amachine rfor use l:in mounting shoes Aon lasts comprising a support for a two-part last, means .for urging a'shoe partially upon the last before the last has been completely straightened, means forholding the last in straightenedfcondition, and :means for urging the shoe further upon the last while the last is held straightened by said holding means.

ll. A machine for use in mounting shoes on lasts com-prisingv means for supporting a twopa-rt last in broken condition with the forepart of 'a shoe loosely mounted on the forepart -of the last, means for assisting the operator to straighten the last and for drawing the heel portion Vof the shoe over the heel portion of the last, means yfor holding the last in straightened condition, and means for urging the shoe rearwardly upon the straightened last.

12. VA machine for use in mounting shoes on lasts comprising means for supporting a two-part last in broken condition with the forepart of a shoe Vloosely mounted on the forepart of the last, a shoe horn, means for operating said shoe horn to draw the -heel portion of the shoe over the heel Aportion of the last, such operation of the horn serving -to assist the operator in straightening the last, a wedge movable into position between :the fore and rear sections of the last to hold the last in straightened condition, and friction means operable upon the shoe bottom to urge Ythe shoe rearwardly upon the straightened last.

l EDWARD QUINN.

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