US2085852A

US2085852A - Heel-attaching machine

Info

Publication number: US2085852A
Application number: US54859A
Authority: US
Inventors: Gouldbourn Joseph
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1935-01-01
Filing date: 1935-12-17
Publication date: 1937-07-06
Anticipated expiration: 1954-07-06

Description

July 6, 1937.

J. GOULDBOURN HEEL ATTACHING MACHINE Filed Dec. 17, 1935 a Sheets-Sheet 1 July 6, 1937. .J. GOULDBOURN 2,085,852

HEEL ATTACHING MACHINE Filed Dec. 17, 1935 A 3 Sheets-Sheet 2 //\/\/EN TUE I2 fwd/4 7/ 15 /14 QM July 6, 1937.

.1. GOULDBOURN 2,085,852

HEEL ATTACHING MACHINE v Filed Dec. 17, 1955 s Sheets-$heet 5 v 259 259 \O O Patented .iuly 6, i937 zpsasz HEEL-ATTACHHNG MACHINE Application December 1'7,- 1935, Serial No. 54,859 in Great Britain January 1, 1935 32 Claims.

This invention relates to machines for attaching heels to shoes, and especially to positioning means for the work.

I Machines for attaching heels to shoes are generally known either as inside heel-attaching machines or outside heel-attaching machines. In the former, heel-attaching fastenings are inserted from the inside of the shoe through the heelseat into the heel, While in the latter, such fastenings are inserted from the outside through the heel and into the heel-seat. In the outside type of machine, provision is sometimes made for attaching a top-lift to a heel-base, while a shoe to which said heel-base has been secured remains in the machine. This may be eiiected by pressing the top-lift on the inserted heel-attaching nails or other fastenings, which, for this purpose, are left projecting from the base a distance a little less than the thickness of the top-lift. This invention provides in heel-attaching machines of the character above indicated, novel means for positioning a shoe, as by a band-clamp, in relation to a heel held in the machine, whereby when the shoe is presented for the attachment of the heel, its relation thereto will be accurate, the positioning means being so actuated as to facilitate its engagement with the work and its 'movement to an inactive position. The positioning means may also be so controlled as to act clifierently during alternate cycles of the machine. This adapts said positioning means for use in connection with top-lift-spanking.

In another of its aspects, the invention involves novel means for pressing together in the machine a shoe and a heel, while preventing lateral tipping of the heel-end of the shoe.

The pressure mechanism disclosed herein is made the subject of an application for Letters Patent of the United States in my name jointly with Thomas A. Kestell, filed December 17, 1935,

SerialNo.54,858. I

The various objects and the several features of the present'invention, in connection with either of the kinds of heel-attaching machines hereinbefore referred to, will become apparent from a consideration of the following description, given by way of example, of a particular embodiment of the invention, which will be hereinafter illustratively described, with reference to the acccmpanying drawings, in connection with a heelattaching machine of the general character of that disclosed in Letters Patent of the United States No. 1,195,134, Gouldbourn, August 15, 1916.

In the drawings,

7 and attaching fastenings are inserted may include a anism including a treadle l2 and other parts similar to those of the previously-mentioned pat- Fig. 1 is a left-hand side elevation of the upper part of the above-indicatedheel-attaching machine, embodying this invention; 7

Fig. 2 is a side elevation, partly'in section and to a larger scale, of the upper part ofthemachine fi shown in Fig. 1; v

Fig. 3 is a front elevation, partly in section, of part of the pressure mechanism shown in Figs. 1 and 2;

Fig. 4 is a plan View of mechanism for pom- 1 tioning a shoe in the machine;

Fig. 5 is a section on the line VV in Fig. 4,

Fig. 6 is a section on the line VIVI in Fig. 2. The means for pressing a shoe and heel t02j.? gether and holding them so pressed while heelvertical plunger i (Fig. 2), which, at its lower end, supports work-pressing devices. The plunger is arranged to reciprocate in the machine-frame 3. It has at its rear side a vertical rack 5 engaged by a gear-segment l on the forward end of an arm 9 secured on a horizontal shaft ll extending laterally of the machine and rotatable in the frame 3. The segment-arm 9 may be actuated to move the plunger downwardly by mechent, by which preliminary pressure is applied to the work, and the power-operation of the mano chine is initiated. Formed in the plunger i is a cylindrical fluid-containing chamber l3, which is closed at its lower end and at its upper end is enlarged somewhat and is open. A cylindrical tube I5 is secured on the machine-frame by,: screws ll, I! and extends downwardly into the chamber I3, the plunger I fitting and sliding about its exterior. Threaded into the tube H5 at .its upper end is a spring-adjusting collar iii, having above the upper end of the tube a flange 2! in which are shown radial holes to'receive a bar by which the collar 19 may be turned and adjusted longitudinally of the tube. The lower end of the tube has secured in it a valve member 23 having a vertical central bore 25 and between this and the outer wall of the member a number of smaller vertical bores. One of these smaller bores is shown at 21, opening through the top of the valve member 23 and into an enlarged portion 29 of the central bore 25 near but inside the lower end of the valve member. A valve-plate 3! is seated on the top of the member 23 and there normally closes the bores El. This valveplate is pressed down against the upper end of the valve member 23 by a coil-spring 33 confined 5 in the tube I5 between the valve-plate and the collar I9. By adjusting the collar, the pressure of the spring against the valve-plate and the resistance to movement of said plate may be varied.

Slidingly mounted in a bore in the spring-adjusting collar I9 and in the bore 25 in the valve member 23 is a tubular piston 35, which passes through the spring 33. This piston at its upper end is secured in a carrier 37 extending downwardly at the front of and partly around the upper portion of the machine-frame. At each side, the piston-carrier has formed in it horizontal grooves 39, which receive the forward rounded ends of arms 4| of a forked lever 43 by which the piston is moved up and down. The lever 43 is fulcrumed on a horizontal shaft 45 extending laterally of the machine and secured in the machine-frame. The rear end of the lever has pivotally connected to it the upper extremity of a downwardly-extending rod 37, which at its lower end is connected to a crank-operated toggle 49, as in the Gouldbourn patent. When, during the power-operation of the machine, the toggle is straightened, the piston 35 is moved down positively. This piston has extending axially through it a valve-rod 5 i, the lower end of which has secured on it a valve 53 arranged to close the lower opening of the bore 25 in the valve member 23, so that fluid in the bottom of the chamber I 3 below the valve member is locked in said chamber. The enlarged upper end 55 of the valve-rod 5| has a vertical slot which receives the rounded forward end 5? of a valve-operating lever 59 fulcrumed on a horizontal shaft 5I extending across the machine-frame. The valve-operating lever 59, at its rear extremity, is connected by a rod 63 to a lever 65 actuated in the operation of the machine, similarly to that in the previously-mentioned patent which eifects the clamping engagement of the friction-plates.

The tube I5 has formed in it above the valveplate 3!, a number of openings 5?, which allow fluid to pass from the enlarged portion of the chamber i3 in the plunger I into the inside of the tube. The top of the valve member 23 has a number of recesses, one of which is shown at 59, formed in it between the bores 27 in the wall of the member. Through these recesses, fluid passing through a central opening in the valveplate 3| surrounding the piston 35 can flow through the bore 25 in the valve member 23 when the piston is raised. If the valve 53 at the bottom of the member is open, the fluid can pass into the bottom of the chamber I3 below the valve member.

When the machine is at rest, the plunger I is held in its raised position by a spring I6 acting upon the treadle mechanism. The piston 35 is raised so that its lower end is above the bottom of the recesses 69 in the valve member 23, and the valve 53 at the bottom of the valve member is open. Consequently, the fluid can flow freely from the enlarged upper portion of the chamber I3 through the openings 57 in the tube l5, through the central opening in the valve-plate 3I and the recesses 69, and then down the bore 25 in said valve member and through the open valve 53 into the bottom of the chamber I3. After a shoe and heel to be attached thereto have been positioned between a work-pressing post I85 carried at the bottom of the plunger I and a die-block I86 of the nailing mechanism of the machine, the plunger is lowered by the arm 9 and the treadle mechanism to apply preliminary pressure to the work. During the lowering of the plunger, the fluid in the chamber I 3 flows from the upper enlarged portion into the lower portion of said chamber. Continued depression of the treadle puts the machine into operation under power, as described in the Gouldbourn patent, and during the power-cycle, the piston 35 is positively lowered by the toggle-lever 39. In its descent, the piston first closes the recesses 69 in the upper end of the valve member 23 and then forces, through the pressure thus applied to the fluid in the chamber I3, the plunger I downwardly to urge the contact members on the post I85 against the work. When this travel of the plunger is stopped by the work, downward movement of the piston 35 forces the fluid in the bottom of the chamber I3 up through the holes 2-": in the wall of the valve member 23 and past the valve-plate 3! on said member against the pressure of the spring 33. The amount of this final pressure applied to the work by the pressure devices is controlled by the spring 33, which may be adjusted by the collar I9 to vary its resistance and thus the force applied by the piston through the cylinder and its contained fluid, according to what is required by the character of the work. After the downward stroke of the piston has been completed, the valve 53 is raised, by its connections to the lever 65, to close the opening at the bottom of the valve member 23. The fluid in the lower part of the chamber I3 is therefore locked therein and upward movement of the plunger I and the post I85 is prevented during the insertion of heel-attaching fastenings. After this, the valve 53 is opened and the piston 35 is raised by their operating mechanisms. If the treadle has been released, the plunger is raised by a spring 72 associated with the treadle mechanism, the elements being thereby restored to their initial positions.

The means for positioning a shoe in relation to a heel which is to be attached thereto may include a band-clamp i! (Fig. 4) which is arranged to the back and sides of the heel-end of the upper of the shoe and to enter the crease formed by the upper and outsole. This band-clamp is preferably in the form of a strip of thin sheetmetal, bent to furnish opposite arms having substantially the shape of the heel-end of a shoe. The forward ends of the band-clamp have laterally extending ears 13, I3 pivotally connected to the forward ends of arms 35, of a pair of levers which are fulcrumed at the rear on a vertical stud l9 secured in a horizontal slide 3| which is adjustable horizontally forwardly and rearwardly of the machine. An ear 83 extends rearwardly from the band-clamp and is connected by a vertical pivot 85 to the band-clamp-slide Ill. The bancbclamp-levers l5 and I? have, respectively, extending rearwardly and to the right from them,

and 55, carrying on vertical pivots camrolls 9!, 93, respectively. These cam-rolls furnish friction-reducing surfaces equivalent to the corresponding edges of the levers and are respectively urged towards two cams 95 and 91 by a spring 59 connecting the arms 8?, 89 of the band-clamp-levers. The cams are secured on a vertical cam-shaft if rotatable in the slide BI between the cam-rolls. When the cam-shaft is rotatedin one direction, the forward ends of the band-clamp l! are moved towards each other by the cams to grip and temporarily retain the heelend of a shoe. When the cam-shaft is rotated in the opposite direction, the spring 9!! connecting the

arms

37, 89 of the band-clamp-levers opens the clamp. From the cam-shaft 5 5i extends rear-- wardly an arm 53 having rotatable in it a vertical pin i535. Through the pin is threaded a horizontal rod It! having secured on its end toward the right of the machine a knurled collar E38 by which the rod may be rotated.

The left-hand end of the rod 153'? is threaded through a vertical pin i i rotatable in a forward ly-extending arm lit of a bell-crank-lever lid fulcrumed at 2 55 upon a vertical slide 1 l7 movable on a guide 1 i8, there being ball-bearings between the slide and guide. The threads on the rod it? are right and left, so that if the rod is rotated a quick adjustment of the opposite sides of the band-clamp toward or from each other is obtained. The band-clamp-slide 82 is adjustably mounted on a dovetailed guide l 19 (Figs. 2 and 5) extending forwardly from the vertical slide ill. The guide MS has formed on its upper surface rack-teeth l2 5, which are engaged by the teeth of a pinion I23 on a horizontal shaft !25 rotatable in the slide ill. The righthand end of the shaft i25 has secured on it a hand-lever 52? by which the shaft may be rotated to adjust slide Si and band-clamp forwardly or rearwardly of the machine. The pointed end of a screw I29 threaded through the slide engages a groove in the shaft 25 to prevent it from moving endwise. the side of the band-clamp-slide ill opposite the lever I21 projects a bolt 13! on which is slidingly mounted a block shaped as shown in Fig. 5, to engage the guide H9. This block is clamped against the guide lid, to hold the band-olamp 'ii in adjusted position, by a nut or sleeve i535 threaded on the bolt iti. The sleeve may be rotated by a hand-lever 13?, so clamped upon it as to be adjustable'into a convenient position for operation.

A second arm Hit of the bell-crank-lever lid is connected by universal couplings a rearwardly-extending rod is! to an upwardly-extending arm Hi3 of a bell-crank-lever hi5 fulorumed on the machine-frame. The other arm it? of the bell-crank-iever ltd is pivoted to the upper end of one of a pair of toggle-links M9, 55!. The lower end of the toggle-link itll is connected to an arm !53 actuated through a link E52 fromthe treadle l2, as in the previously-mentioned patent. The toggle 549, I5! is normally maintained partly broken by the engagement of stop-lugs E55,

Hill on the toggle-links close to their common connection, which lugs are held in normal engagement by a spring i5! connected to the toggle and to the frame of the machine. Normally, the opposite sides of the band-clamp H are separated by the spring 39. When the treadle is depressed to move the work-pressing members downwardly, the first part of the movement causes, through the chain of connections between the arm R53 and the cam-shaft Edi, the band-clamp-cams as to be rotated to close the sides of the band-clamp "ii against a shoe placed between them. Thereafter, during continued depression of the treadle,

- the toggle-links i9, 15! break further, and, while the contact devices on the post l85 are actuated by the treadle to press the work, the spring l5! connected to the toggle yields and holds the cams 55, Si in the positions they reached when moving the band-clamp into engagement with the shoe. When the treadle is released and as it is fully raised by its spring, the spring l5? returns the toggle-links H59, 15! to their partly broken condition, and thereafter the cams are rotated, and the clamp H is again opened by the spring 99.

If the machine is being used for attaching a heel or heel-base to a shoe by fastenings inserted from the outside and for spanking a top-lift thereon in successive operating cycles without removing the shce from themachine, it is desirable, to avoid the opening of the band-clamp ll between the successive cycles and the releasing thereby of the shoe, to prevent the treadle from being raised to its highest position. For this purpose, a rod Elli (Fig. 1) joining the treadle-actuated lever 553 to the work-pressing devices, as in the Gouldbo-urn patent, has secured on it a block 5&3. A'star-wheel 5'55 havingsix radial arms is rotatably mounted on a horizontal stud, project ing from the machine-frame below the block U83 and between the rod so: and the frame of the machine. During each cycle of the machine, the.

star-wheel is rotated to bring either the end of one of the arms or a gap between the arms. beneath the block 63. When one or the arms is beneath the block, and the rod It! is lowered as the treadle is raised by its spring; said block engages the arm, and the band-clamp is stopped before it reaches its fully raised position and is opened. If a gap between the arms of the star-wheel I65 is below the block 563, the band-clamp will'be fully raised and opened when the treadle is released. The star-wheel has secured on it a ratchet-wheel till, which is engaged and rotated by a pawl 59 carried by a ratchet-lever ill fulcrumed on the machine-frame and urged towards the ratchetwheel by a spring 5712. The ratchet-lever is con nected by a link lit to the lever 65,,hereinbefore referred to as operating the valve 53 in the workpressing mechanism, so that during each cycle of the machine, the ratchet-whecl is rotated a distance to present to the block 563 either one of the arms on the star-wheel M or a gap between the arms. The pawl W9 may, by means of a pin H5 inserted in a hole ill in the lever and engaging said pawl, be held out of engagement with the ratchet-wheel if the machine is used for attaching heels without top-liit-spanking. This allows a gap between the star-wheel-arms to be constantly alined with the block, so that the bandclamp will be fully raised and opened each time the machine is stopped.

The work-pressing devices carried by the plunger l include, as applied to a machine of the outside heel-attaching kind, a member for engaging thecrown or top of the cone of a last in the shoe and side members for engaging the upper of the shoe at each side of the heel-end of said shoe above the band-clamp and between the top and bottom of the last. The side members assist in pressing the shoe against the heel and the heel against the top-lift, if a top-lift is being spanked on to the h eel, and prevent lateral tipping of the last and shoe when pressure is applied to the work. This tipping is especially liable to occur if the top of the last is worn or crushed.

The member which engages the crown of the last is a plate It! (Figs. 2 and 3), which may or may not have a last-pin extending downwardly from it, depending upon the character of the shoe being operated upon. The plate is mounted on the underside of a block E83 for limited movement laterally of the shoe. The block is carried by the lower end of the post 485 and is arranged to tip about an axis lying in the underside of the plate i8! and close to the last-pin, if such is pro vided, so that the plate NH and block I83 can tip lengthwise of the shoe. I The block has formed on it an arcuate gear-segment ltl, and the post 'has rotatably mounted in it a shaft 589 on which is a spiral gear lei meshing with the segment. The shaft may be rotated by a knurled head 193 on its forward end to adjust the angle of the plate I8 I, and the shaft may be locked in adjusted position by a plunger and notches in the shaft (not shown). The post 185 is pivotally mounted on a horizontal shaft I95 extending laterally of the machine and secured in a slide I91 mounted for fore-and-aft movement in a guideway formed in the underside of a plate it?!) on the lower end of a carrier-sleeve 2Ill surrounding the lower end of the plunger I and arranged to move to a limited extent longitudinally thereof. At the inner side of the post I 85 is a rearwardly-extending arm 203 which at its end curved upwardly and forwardly and has formed in it a slot 205 which, when the post is in operating position, first lies horizontally and then curves upwardly at its rear, generally concentric to the shaft I95. A roll 28'! is rotatable on the plate I99 in the slot 205. When the post I35 and slide I97 are pulled forward by the operator, the slot travels along the roll 207 until the curved part reaches said roll, when forward movement of the slide ceases and the post may be tipped on its pivot I95 forward and up, until the upper end of the curved part of the slot engages the roll. The post is then in a convenient position for the withdrawal of the work and the applying of fresh work. When in its forward and raised position, the post is locked to the slide by a, pin 209 in said post, which engages a springplunger 2H in the slide.

Connected to the slide I9? is a link 253, which at its lower end is joined to the vertical slide I I 'I' which carries the band-clamp-slide 8!, so that the band-clamp it moves up and down with the slide I97. The link 2I3 is threaded through pins 2 I5, 2 I! rotatable respectively in the slide I I? and in a lever 2 I 9, fulcrumed on the slide I91 and hav ing a forked forward end engaged by a pin 22I in the post I85. The link 2I3 has right and left screw-threads on'its opposite ends, so that by rotating the link the vertical slide 1, and with it the band-clamp, may be adjusted up or down relatively to the post to cause said band clamp to be properly positioned to receive the heel-end of a shoe. When the slide I97 is moved forward and the post 185 is swung up, the pin 22I turns the lever 2I9 in a clockwise direction, as viewed in Fig. 2. The link is therefore actuated to draw up the band-clamp further than it has already been raised as the slide l ill and band-clamp were elevated by the plunger i upon release of the treadle. This provides additional clearance for the presentation of a heel and top-lift to the machine.

The members which engage the upper at opposite sides of the heel-end of the shoe consist of two leather-faced blocks 223, 223 (Fig. 3), which are mounted for limited rocking movement lengthwise and heightwise of the shoe on the lower ends of upwardly and outwardly

curved bars

225, 225, adjustably held in the lower ends of upwardly-extending clamp-levers 22?, 221 situated on opposite sides of the post I85. The clamp-levers are fulcrumed on

horizontal pivots

229, 229 secured in the outer extremities of a pair of lever-carrying arms 23L 23!. These arms 23I are fixed at their opposite ends to

horizontal studs

233, 233 rotatable in lugs extending laterally from the sleeve 28I of the work-pressing mechanism. The

pivots

233, 233 of the levercarrying arms are on opposite sides of the vertical axis of the plunger I, and the pivot 229 of each clamp-lever 227 at the outer end of its arm is on the opposite side of said axis from the pivot of the arm. The lever-carrying arms 23I, 23I thus cross each other, passing through vertical openings extending laterally through the sleeve 20I and plunger I. The clamp-levers at their upper ends are guided in

vertical grooves

235, 235 formed in blocks 23?, 23'! secured to the machine-frame. The sides of the grooves prevent fore-and-aft springing of the levers, which, at their upper ends, carry cam-

rolls

239, 23!! held against the bottoms of the grooves by a spring 2M uniting the levers. The upper edge of each of the lever-carrying arms has formed in it a curved recess which is comparatively close to the pivot 233 of the arm and is engaged by a rounded end of an actuating lever 243 pivoted in the opening in the plunger I through which the lever-carrying arms pass. The upper edge of the actuating lever 243, the rounded ends of which are of comparatively short radius from the pivot of the lever, is curved about a horizontal axis extending forwardly and rearwardly of the machine and passing through the vertical axis of the plunger i. The curved edge of the actuating lever seats in a correspondingly curved recess 245 formed in the upper wall of the opening in the plunger through which the lever-carrying arms pass. A pin 241 in the plunger, which passes through a hole in the actuating lever larger than the pin, allows said lever to rock but prevents it from falling if the lever-carrying arms are removed. These arms are normally raised by a spring 249 connected to pins extending downwardly from the arms at their pivots.

The plunger-sleeve 2M has rotatably mounted in it a horizontal pin 25I (Fig. 2) secured by a screw 253. The pin extends from the front of the sleeve toward the rear and at its outer end has a squared portion by which it may be rotated. The inner end of the pin has an eccentric portion 255 which enters a hole 251 in the plunger of greater diameter than the eccentric portion. With the plunger I in its raised position, the portion 255 of the pin engages the lower wall of the hole, and the sleeve 2m and parts carried by it are thereby suspended. When a shoe on the post has been swung downwardly and moved back to position the shoe in the band-clamp II the blocks 223 are preferably comparatively close to the upper so that the operators fingers cannot accidentally be caught between the shoe and blocks when the latter are actuated.

When the plunger 4 is depressed by the treadle I 2, the plate IBI and the blocks 223 move down together with the shoe until the heel-seat engages a heel supported upon the die-block I86. Thereafter, during continued downward movement of the plunger I, the plate I8! is arrested, and the actuating lever 243, depressed by the plunger-surface 265, swings the lever-carrying arms 23I downwardly about their pivotal axes to move the levers 22'! and cause their blocks 223 to enga-ge'the shoe. At this time, the lower wall of the hole 257 in the plunger moves away from the eccentric-portion 255 of the pin 25I in thesleeve 26L By adjustment of the eccentric 255, the initial spacing of the arms 23I from the lever 2 83 and consequently the extent of clamping movement of the blocks 223 may be varied. Owing to the arcuate movement of the fulcra of the clamp-levers 227 on the lever-carrying arms 23!, and the vertical movement of the upper ends of the clamp-levers by reason of their guidance by the frameblocks 231, the clamping blocks 223 are moved towards the shoe in a path approximately at right angles to the faces of the upper which they. engage. Consequently, they do not scrape over and mar the upper-material. The pivotal mounting of the actuating lever 243 in the plunger allows the blocks 223 to accommodate themselves to the position of the sides of the heel-end of the shoe laterally of the machine. When the plunger i is moved down to apply pressure to the work, and the plate l8| and blocks 223 are depressed by the actuating le ver, the pressure of the blocks against the shoe is equalized by the tipping of said lever. Owing to the recesses in the lever-carrying arms 23l being comparatively close to the pivots of the arms as compared with the fulcra 228 of the levers 221 at the ends of the arms, the pressure of the plate 58! against the last is greater than the pressure of the blocks 223 against the upper.

If a low shoe rather than a high shoe is being operated upon, a last-pin in the plate 48! may be dispensed with, and the post need not, unless desired, be moved upon the plunger l to introduce a shoe into the machine or to remove it therefrom, since the last will project above the upper. Consequently, the shoe and last can be presented to the band-clamp by passing the rear portions under the plate. In this case, the additional raising of the bandclamp by the lever 2i9 will not occur, its elevation when the treadle is released allowing the introduction and removal of the work.

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

1. In a heel-attaching machine, a positioning member for the rear portion of a shoe, said positioning member having opposite sides movable toward and from each other, a device movable to apply pressure to the work, a member by which the operation of the machine may be controlled, and connections to the controlling member for moving the sides of the positioning member toward each other and for imparting to the device its pressure-movement.

2. In a heel-attaching machine, a positioning member for the rear portion of a shoe, said positioning member having opposite sides movable toward. and from each other, means by which the operation of the machine is controlled, connections to the controlling means for moving the sides of the positioning member, and means included in the connections for varying the normal space between the sides of said positioning member.

3. In a heel-attaching machine, a band-clamp comprising opposite shoe-engaging arms movable toward and from each other, a lever connected to each arm, means by which the operation of the machine is controlled, and connections between said controlling means and the levers for simultaneously moving each of the arms toward the other arm.

4. In a band-clamp, opposite shoe-engaging arms movable toward and from each other, a lever connected to each arm, a rotatable shaft extending between the levers, a cam individual to each lever and carried by the shaft with its periphery contacting with the inner edge of its lover, a treadle, and connections to the treadle for rotating the shaft.

5. In a band-clamp, opposite shoe-engaging arms movable toward and from each other, a lever connected to each arm, a rotatable shaft, a cam contacting with each lever and being carried by the shaft, a screw for varying the normal space between the arms, and connections to the screw for rotating the shaft.

6. In a heel-attaching machine, a movable positioning member for a shoe, means for moving the member, and means acting during alternate operating cycles of the machine for rendering the moving means inefiective.

7. In a heel-attaching machine operable in successive cycles to nail a heel and to spank a top-lift thereon, a band-clamp, means for opening and closing the clamp, and means for rendering said opening and closing means ineffective during the top-lift-spanking cycle.

8. In a heel-attaching machine, a band-clamp, a member movable to allow the opening of the clamp, and means for limiting the movement of the member during alternate cycles of the machine as compared with the movement occurring during the intermediate cycles;

9. In a heel-attaching machine, a band-clamp having arms movable toward and from each other, means for'se'p'arating the arms, and a member movable in the operation of the machine for rendering the moving means ineffective.

10. In a heel-attaching machine, a band-clamp having arms movable toward and from each other, connections by which the arms are moved, a member movable by the connections, a rotatabie device provided with alternate projections and depressionswith which the member co-operates, and means for rotating the device.

11. In a heel-attaching machine, a band-clamp having arms movable toward and from each other, connections by which the arms are moved, a member movable by the connections and having a projection, a rotatable star-wheel with the periphery of which the projection contacts, and means for rotating the star-wheel under the power of the machine.

12. In a heel-attaching machine, movable,

work-pressing means, a movable work-position ing member co-operating therewith, connections to the work-pressing member for moving the positioning member, and means movable upon; the pressing means for imparting additional move ment to the positioning member.

13. In a heel-attaching machine, work-pressing means movable in a plurality of directions,

a movable work-positioning member co-operating 1 with the work-pressing means, and connections between the pressing means and the positioning member for moving said positioning member upon movement of the pressing .means in one direction and for imparting additional movement to the positioning member upon movement of the pressing means in another direction.

l l. In a heel-attaching machine, a reciprocatory support, a work-pressing member movable upon the support, a work-positioning member co-operating with the pressing member, an actuating member movable upon the support under the influence of the pressing member, and connections to the actuating member for moving the positioning member.

15. In a heel-attaching machine, a reciprocatory plunger, a post mounted to swing upon the plunger, a lever having its fulcrum carried by the plunger and actuated by the swinging of the post, a movable band-clamp co-operating with tory plunger, a, slide movable upon the plunger,

a post pivoted upon the slide and provided with a rearward and upward extension in which is a slot receiving a projection upon the slide and controlling successive sliding and swinging movements of the post, a movable band-clamp 00- operating with the post, and connections to the post for moving the band-clamp.

17. In a heel-attaching machine, a reciprocatory plunger, a slide movable upon the plunger, a post pivoted upon the slide and provided with a rearward and upward extension -in which is a slot receiving a projection upon the slide and controlling successive sliding and swinging movements of the post, a movable band-clamp cooperating with the post, a lever fulcrumed upon the slide and actuated by the swinging of the post, and a link connecting the lever and bandclamp.

18. In a heel-attaching machine, a reciprocatory support, .a post mounted thereon and arranged to engage the crown of a last within a shoe to be heeled, levers fulcrumed at opposite sides of the post to move therewith and provided with portions for contact with the work, and a member movable with the support to actuate the levers.

19. In a heel-attaching machine, a reciprocatory support, a post mounted to move longitudi nally thereof and arranged to engage the crown of a last within a shoe to be heeled, levers fulcrumed at opposite sides of the post to move therewith and provided with portions for contact with the work, and a member movable relatively to the post to actuate the levers.

20. In a heel-attaching machine, a reciprocatory support, a carrier movable longitudinally thereof, a work-engaging post mounted upon the carrier, work-engaging members movable at opposite sides of the carrier, and a member carried by the support to actuate both work-engaging members.

21. In a heel-attaching machine, a reciprocatcry support, a carrier movable longitudinally thereof, a work-engaging post mounted upon the carrier, work-engaging members movable at opposite sides of the carrier, a member carried by the support to actuate both work-engaging members, and means arranged to vary the normal relation between the actuating member and the work-engaging members.

22. In a heel-attaching machine, a reciprocatory support, a carrier movable longitudinally thereof, a work-engaging post mounted upon the carrier, arms pivoted at opposite sides of the carrier, a work-engaging lever fulcrumed upon each arm. and a member carried by the support for contact with both arms.

23. In a heel-attaching machine, a reciprocatory support, a carrier movable longitudinally thereof, means arranged to vary the normal position of the carrier upon the support, a workengaging post mounted upon the carrier, arms pivoted at opposite sides of the carrier, a workengaging lever fulcrurned upon each arm, and a member carried by the support for contact with both arms.

24. In a heel-attaching machine, a reciprocatory support, a carrier movable longitudinally thereof, a work-engaging post mounted upon the carrier, arms pivoted at opposite sides of the carrier, 2. work-engaging lever fulcrumed upon each arm, and a member carried by the support for contact with both arms to actuate the levers,

said levers being guided in their movement by engagement with sluiaces fixed relatively to the carrier.

25. In a heel-attaching machine, a reciprocatory support, a carrier movable longitudinally thereof, a work-engaging post mounted upon the carrier, arms pivoted at opposite sides of the carrier, a Work-engaging lever fvlcrumed upon each arm, and a member carried by the support for contact with both arms, the pressure applied by the levers to the work being less than that applied by the post.

26. In a heel-attaching machine, a reciprocatory plunger, a sleeve movable upon the plunger, a work-engaging post mounted upon the sleeve, arms pivoted at opposite sides of the sleeve and crossing each other, a lever fulcrumed upon each arm and provided with a work-engaging block, and means for actuating the levers.

27. In a heel-attaching machine, a frame, a plunger arranged to reciprocate thereon, a sleeve movable upon the plunger, a work-engaging post mounted upon the sleeve, arms pivoted at opposite sides of the sleeve and cr ssing each other, and a lever fulcrumed upon each arm and provided at one end with a work-engaging block and at the other end with a roll guided by a surface upon the frame.

28. In a heel-attaching machine, a reciprocatory plunger, a sleeve movable upon the plunger, a work-engaging post mounted upon the sleeve, arms pivoted at opposite sides of the sleeve .and crossing each other, a spring connecting the arms,

a lever fulcrumed upon each arm and provided with a work-engaging block, and means for actud ating the levers.

29. In a heel-attaching machine, a reciprocatory plunger, a sleeve movable upon the plunger, a work-engaging post mounted upon the sleeve, arms, pivoted at opposite sides of the sleeve and crossing each other, a lever fulcrunied upon each arm and provided with a work-engaging block, a spring connecting the levers, and means for actuating the levers.

30. In a heel-attaching machine, a reciprocatory plunger, a sleeve movable upon the plunger, a work-engaging post mounted upon the sleeve, arms pivoted at opposite sides of the sleeve, a work-engaging lever fulcrumecl upon each arm, and a lever fulcrumed upon the plunger and contacting with both arms.

31. In a heel-attaching machine, a reciprocatory plunger, a sleeve movable upon the plunger, a Work-engaging post mounted upon the sleeve,

arms pivoted at opposite sides of the sleeve, a

work-engaging lever fulcrumed upon each arm, and a lever fulcrumed upon the plunger and contacting with both arms at points closer to the pivots of the arms than to the fulcra of the levers upon said arms.

32. In a heel-attaching machine, a reciprocatory plunger provided with an opening, a sleeve movable upon the plunger, an eccentric of less diameter than the plunger-opening rotatable upon the sleeve and arranged for contact with the wall of said plungei o pening, a work-engaging post mounted upon the sleeve, arms pivoted at opposite sides of the sleeve, a work-engaging lever fulcrumed upon each arm, and means for actuating the levers.

JOSEPH GOULDBOURN.