US1996879A

US1996879A - Fastening-inserting machine

Info

Publication number: US1996879A
Application number: US596775A
Authority: US
Inventors: Elmer R Pope
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1932-03-04
Filing date: 1932-03-04
Publication date: 1935-04-09
Anticipated expiration: 1952-04-09

Description

April 9, 1935. E. R. POPE FASTENING INSERTING MACHINE Filed March 4, 1952 3 Sheets-Sheet 1 3 Sheets-Shea 2 1 EF i A April 9, 1935. E. R. POPE FASTENING INSERTING MACHINE Filed March 4, 1932 9, E. R. POPE I FASTENING INSERTING MACHINE Filed March 4, 1932 5 Sheets-Sheet 3 178 Fig. 7.

Patented Apr. 9, 1935 I 7 1,996,879 FASTENING-INSEBTING MACHINE Elmer R. Pope, Hamilton, Mass, assignor to United Shoe Machinery (.lor'po'ration,Paterson, N.' J a corporation of New Jersey Application March 4, 1932, Serial No; 596,775

' 59 Claims.

My invention relates to machines for inserting fastenings in such work as shoes. It is particularly designed for the attachmentof heels by nails driven from within the shoes. V

A-n object'of my invention is to improve generally the operation or such a machine and to 'render it; readily adaptable for the insertion of nails or other fasteningsin accordance with a wide range of designs, providing for the automatic supply of nails to the nailing mechanism, whatever the design for which the latter may be arranged, facilitating the vertical adjustment of the nail-drivers while maintaining a predetermined angular relation about their axes, and furnishing means whereby the heels are firmly held in place during the driving of the nails.

In the attainment of this object I combine, as one feature of my inventiomwith a support, as a jack or nailing die of a heel-attaching machine for a loader for such die, members, which may assumethe. form of nail-tubes; mounted to move upon the support, together with means arranged to position simultaneously a plurality of the mem--.

bers in accordance with a portion of a fasteninginserting design, and means operable inde-- pendently of the first-mentioned means and arranged to position simultaneously a plurality of members different from those first acted upon in accordance with another portion of said fastening-inserting design, By thus organizing the fastening-receiving instrumentalities,. the; flexibility of the system is greatly increased, enabling theoperator to set the members in certain formal designs or to modify these, when, for example, the

style of the heels as well as the size of the shoes change. By thismeans all the fastenings may be located most advantageously, thus obtaining in the heeling of shoes a secure'attachment and a tight rand-crease. Further, by providing means -for"compelling the plural positioning means to act together, the ratio of movement between'one group and the other, when once established, may be maintained. In this way the operatorhaving determined the best relation for astyle of heel, this may be continued for different shoe-sizes with manipulation of but a single positioning means, As applied to both the nail-tubes of the jack and of the loader of a'heel-attaching machine, I have herein showna guidej member for the tubes and a plurality of actuating members coroperating with the guide member and respectively movable in contact with different tubes. Preferably, the guiding and actuating efiec ts are 'b'oth furnished'by slots in the members, the actuating slots intersecting different groups of guide-slots. I compel the actuating members to move together. Regardless of whether or not the fastening receiving members or nail-tubes are, adjustable in groups, it is presents patentable novelty in a loader which is movable from a nail-receiving position, which may be beneath the foot-plate of a nail-distributor, Ito anail-delivering position over a nailing die. or..jack having movable members provided with nail-receiving passages'and variable to correspond to difierent designs, the receivingjmembersof the loader being adjustable to correspond 'to said receiving means of the die or jack. .The

loader is best movable under the powerlof the machine. As herein disclosed, the members consistof tubes pivoted at their upper extremities and having a member contacting with them below. the pivots to vary the location of their lower ends. Thus the tubes areadapted to receive nails from fixed delivery-passages at a distributor foot.- .plateand yet be brought into registration with variable receiving-passages in .a nailing die.

In the inside nailing of heels, the shoes should be centralized transversely of the supporting jack to symmetrically locate the points of insertion of the nails, and it is desirable to support the insoles atthe sides of the heel-seatto prevent them from .curling. As another feature of the invention, I

thus position and support the work by the provisionof a setof top-plates mounted upon a jack body, each plate of the set having transverse dimensions different from the associated plates and being provided with nailreceiving openings which, for the entire set, are

located inthe same relation to one another in each plate. With an arrangement of adjustable nailtubes such as has already been outlined, the nail receiving passages in the plates are in the form'of' slots in which the tubes are movable.

The nail-drivers of machines for the inside at-' tachment of heels are commonly inclined down-- war'dly and inwardly at'their upper nail-engaging extremities to produce a toeing-in of the nails when inserted in the work. This allows the points at which the nails are driven to be kept well out toward the crease, without causing them to emerge through the peripheries of the heels. It

is also desirable to locate each driver-end in a r definite relation to the work-supporting surface,

depth, and this positioning should be quite accurate to give the desired results. To accomplish believed that the present invention When desired, locking means may which may be separably to sink the nail-heads in theinsoles to the desired in which it is mounted, meansarranged' to move said driver longitudinally of its axis, and a member contacting with the driver to retain it against rotation during such movement. By such an organization the inclined driver-end is kept always in the same angularrelation 'circumferentially of the driver axis and the'direction in which the nails 7 are driven is kept constant, whatever the longitudinal adjustment may be. With a plurality of drivers, a member individual to each preferably provides for their longitudinal adjustment, while I "a member common to the plural driversretains them against rotation during the longitudinal movement. The first of these members'may be furnished by a nut threaded upon each driver and the second by a plate with a slot for each driver,

there being a block movable in and retained against angulardisplacement in each of the slots,

found in means for applying pressure to a heel to hold it in place upon the heel-seat of a shoe dur ing .na'iling. My improved heel-pressure comprises ahead movabletoward and from 'a shoesupport or jack, together with a plurality of heelcontact members mounted upon a carrier, an actuator arranged to move one of the contact members upon the carrier, both the carrier and actuator being movable on the head, and means forming a part of the head and arranged to move the carrier and actuator, preferably in opposite direc tions. As herein disclosed, one of the two contact. members upon the carrier is pivoted for env gagement by the actuating member. tone of the contact members may be caused by the carrier to move directly into enga ement with the heel to-be attached, as against the tread-surface, and the pivoted member to be swung under the influ- .en'ee of the actuating member'downwardly and in- Wardly against the'back .of theheel, eflectively retaining said heel against being forced rear wardly from theheel-seat. The carrier and actuator appear herein as slides movable upon a pressure-head, the carrier-slide bearing both the tread-contact member and the pivoted rear contact member. .The actuating slide engages the latter contact member to move it upon thecarrierslide, preferably through an'interposed member, as a. screw variable in-position and thus altering therelative movement ofthe two members; To' prevent a reverse movement of one of the contact members upon the carrier-slide when under pressure, as that at the rear of the heel, I may furnish means for locking such member through one'of the slides, preferably theac'tuating slide, together with actuating means for releasing the look. For the look I preferably employ detent 'mechanism connecting the chosen slide to the pressure-head. The releasing means is shown as a lever fulcrumed upon the head and engaged by a contact member upon the machine frame.

Novel features embodied in way of illustration in this locking and releasing mechanism are covered generically in Letters Patent of the United States No. 1,895,896, dated January 31, 1933. V

Inthe accompanying drawings,

Fig; 1 shows in broken perspective a portion of a heel-attaching machine embodying one'form of portion of the jack and its top-plate;

Fig. 3, a broken top plan view of the adjusting mechanism for the jacktube s;

Fig. 4, a broken perspective view of such' a mechanism for the loader-tubes;

Fig. 5, a vertical transverse section throughthe jack, the loader'and distributor-foot-plate, with the heel-pressure-head in elevation;

Fig. 6 shows separated from one another, the

elements for adjusting the drivers longitudinally; and

Fig. 7 is a side elevation of the upper portion of the machine, particularly illustrating the pressure-abutment and itsactuatinglmechanism'.

The general heeling machine structure which I have illustrated is similar to that of Letters Patent of the United States No. 1,545,575, Standish, July 14, 1925, there being a jack or work- 'support lll rising from a frame II and having reciprocating within it under the power of the machine, a driver-plunger or carrier l2. Upon the top of this plunger is a plate l3 from whichrises vertical nail-drivers l4. There is also a pressure-head l6 movable by the machine to clamp a heel to be attached upon the heel seat of a jacked shoe. I prefer to arrange the machine for power-loading, such an organizati'on'as that disclosed in Letters Patent No. 1,785,928,*'Benj'amin, December 23, 1930 being suitable. Of this there appears a foot-plate l8 to the nail-receiv ing passages of which lead tubes 20 from a naildistributor (notillustrated). An automatically actuated shutter 22 supports thenails at the footplate until they are ready to be delivered to a loader-block 24 movable by a slide '26 froni a'receiving position beneath the foot-plate to a detransfer by the loader-block the nails are held livering-position over the jack. During this ready for delivery upon an automatically controlled shutter 28.

Across the jack, just above the upper end of the plunger 12, extends a plate -carrying ver- 'tical nail-and driver-receiving tubes. These tubes are shown as four in number. Of these there is a pair 32, .32 corresponding to the breastnails and a succeeding intermediate pair, 34. There is also an opening 36' to receive the'rear driver. The tubes 32 and are flanged at their lower extremities to be guided respectively in

slots

38, 38 and 40, 40 in the plate 30, these slots having upper walls overhanging the flanges and retaining the tubes against upward displacement. The;

direction of extension and length of. the slots is such that the tubes may be" moved to' position them for the insertion of nails in accordance'with I every design which it is' desired to employ. Movof the breast-tubeeslide receiving an externally threaded sleeve 46 mounted to turn upon the front of the plate 30, while the intermediate-tube slide has threaded into it a spindle 48 rotatable within the sleeve. Both the sleeveand spindle are held against longitudinal movement. Formed upon the outer end of the sleeve is a head or fingerpiece 50, and just outside this is a head 52. fast upon the spindle. Each head is shown as bearing 1 .a scale, the graduations of which mayv indicate positions for the respective pairs of tubes in different nailing designs. The graduations maybe referred'to index-points 5 formed upon brackets or upon the jack. The. sleeve and spindle may be rotated independently toposition each pair of tubes separately, or they may be compelled to rotate together to simultaneously adjust both pairs by a coupling orlocking pin 56 threaded through the head 52 so. its inner point may. enter or be removed from a registering opening in the head 50. By the separate rotation of the sleeve and spindle the slides 4.2 and M may be moved from front to. rear of the platetll, their slots are thus differently located longitudinally of the guide-slots 3B and. This cams the

tubes

32 and 34 along said slots. to different positions, the movement of the tubes of each pair being in opposite directions transversely. of thejack. It will be seen that this adjustment of driver-tubes in independent groups permits the operator to not only change the nailing design as. the shoe and itsheel vary in size, but also to. meet the requirements of heels of different contours by adjusting thefpairs of breastnail-tubes and intermediate tubes independently of each other, and thereby. bring all in the desired close relation to the crease. Furthermore, the

. best relation having been established, the two adjusting devices may be coupled by the pin 56 to move together, and the chosen ratio maintained for different heel-sizes.

.In addition to their passage through the slots 38; and fill-0f the plate 30, the

tubes

32 and 34 receive the guidance of a top-plate 60 of the jack, in which plate are pairs of

slots

62 and 64 lying respectively in the same vertical planes as the plate-slots 38 and49 (Fig. 2). Through this plate 60 the upper extremities of the tubes just emerge to allow the insole of a jacked shoe to bear upon them. An opening 66 in the top-plate receives the rear driver, which is shown as non-adjustable laterally. Together the plate 60 and the tubes may be viewed as the equivalent of a nailing die. It is desirable to hold the jacked shoe against lateral movement, so nailing may be centralized; and also to support the edges of the insole at the heel-seat against being bent down during the heeling operation. To accomplish this, I preferably provide a set of top-plates which, while they maybe or" the same length from front to rear of the jack, have difierent transverse dimensions. They may be held in place, to be readily interchangeable, by an engaging projection and slot68 at the rear and aprojection and opening 10 at the front, a spring-actuated pin 12 cooperating with; the projection to separably lock the top upon the jack. In Fig. 2 the smallest size of top-platev appears, and in Fig. 1 a larger size.

One of the drivers i4, that at the rear, is fixed against lateral movement in the plate I3, while the companion drivers are movable in slots 8%) in the plate. To give the desired inward inclination to the nails, as appears at N in Fig. 7,

the ends of the drivers which engage the nailheads. are inclined downwardly and inwardly toward the vertical axis of the jack. The extent to which the driver-ends emerge from the top of the jack; is best variable, sothe heads of the attaching nails may be sunk below the surface of the insole. To maintain the inclined end-surfaces incorrect relation to the periphery of the jack and to the work, the drivers should be kept from, turning about their longitudinal axes while the vertical adjustment is being made, and this retaining means should not interfere with the attainment of a relatively fine adjustment. I accomplish this result in the following manner: The plate l3: has fast upon and spaced from it an upper section 8.2 provided with slots: 8*, registering with the slots at in the main portion of the plate. The foot of each laterally adjustable driver enters an opening in a guide-block 86; movable in one of the slots 89. Each driver is slotted longitudinally as, is indicated at 88 (Fig. 6) and entering this slot is a projection Gillying in an opening in a're'taining-block 92 which; 5111':- rounds the driver, such block being movable in one of the slots 84. By this means each pair of members and 92 and the associated driver is guided for lateral adjustment, and at the same time the driver is held by the projection, 99 against rotation within the'slot of the retaining section 82. To produce the longitudinaladjustment of the driver, it is threaded at 94, and upon this thread a nut 95. is arranged to. turn between the plate l3 and its section 82. Above thesection 82 a nut 98 is threaded on the rod. By turning the nut 88 the rod may be adjusted longitudinally have been adjusted. The block has an upper sec;v

tion H39 (Fig-5) between which and thewrnain portion 24 of the block the shutter 28 is movable. The block-section illll is shown as having f vertical passages Hi2 so positioned as to register with the foot-plate-openings of the distributor tubes 20, when the loader is in its rearward nails receiving relation. In the body of the loader are recesses H34 vertically alined with the passages I92 andwhich contain the heads H36 of nail-tubes m3. Theseheads are curved upon their upper and under sides and so engage the opposed walls that the tubes are mounted for universal cscillae tionv They are guided to swing in inclined slots H11 in pairs corresponding to the top-plate-

slots

62 and 54 and are movable in said slots by camplates I I2 and i M (Fig. l) respectively controlled through heads or finger-pieces Hdand 1 5-8 and threaded actuating members, preciselyas in the adjustment of the jack-tubes. The graduations on the tube-setting heads of the loader mechanism may be the same as upon those of the jack, so the operator, upon setting the jack-tubes for a particular nailing, can, with little effort,

correspondingly position the loader-tubes. To the latter the distributor supplies its nails, without change, to the upper pivoted ends through the passages I02 and these loader-tubes, by their gradual inclination between their upper and lower extremities, transfer their nailsfrom one fixed arrangement of tubes to variable designs without danger of causing clogging. I

In the attachment of heels by inside nailing there is, on account of theinclination of the treadsurface of heels with respect to the heel-seat, this being as illustrated by the heel H and shoe Sin Fig. 7, a constant force tending to. displace the heels rearwardly. My improvedpressure abutment is especially designed to-resist thistendency.

Mounted to move vertically in the head It is a carrier-slide I20 which has adjustable at its lower extremity, as to its angle from front to rear of the machine, a carrier-block I22 Movable in ways extending transversely of the under side ofthe block, so vertical alinement with the jack may angularly about a pivot-pin I40.

' head I6 in a direction parallel to the carrier-slide be'attained, is a member I24 furnishing one section of a universal joint, a second joint-section I26 being movable therein. A contact-plate I28 is drawn against the under side of the member I26 by a tension-spring I39 joining the'plate and block through openings in the joint-sections. The plate I 28 furnishes a member for contact with the tread-surface of the heel. Pivoted at I32 upon the carrier-slide above the block H2 is an arm I34,-and secured upon this armis a holder I36 for. a rear heel-contact member I38, which preferably consists of a padded fork shown as adjustable Movable in the is an actuating slide I42, joined to move simultaneously with the carrier-slide but oppositely thereto by gearing I44. 'The' lower extremity of the slide I42 has a contact member I46, which spring I50 joining the holder to the head I6.

may be furnished by a screw and is therefore adjustable. I The head upon this screw bears against a substantially horizontal surface I48 upon the holder I36 of the rear heel-contactmember. This engagement is yieldably maintained by a tension- The spring elevates'the slide I42 until its movement is stopped by a screw I49 threaded through the top the head; This, through the gearing I44,

' correspondingly" depresess the carrier-slide.

When, in the operation of the machine, the head is lowered to apply pressure to the heel H situated upon the heel-seat of the jacked shoe S, the treadplate i 28 first contacts with the heel andthe slide I20 yields, the gearing I44 forcing the slide I42 down. The spring R50 is at this time holding the rear contact member I38 away from the heel, the normal positionbeing determined by the adjust I 'ment of the screw I46. As the actuating slide descends; the-pressure of the screw against the surface I48 turns the arm I34 about its pivot,

. swinging the member I38 downwardly and inwardly against the back of the heel,-this continuing until the forces applied to the heel by the two slides through'theircontact members are equal ized. Of these forces there will always be a substantial component produced by the forwardmovement of the member I38 about its pivot, which will directly oppose rearward displacement of the heel. Means is included in the abutment for positively locking the rear contact member against: yielding upon its pivot during the application of pressure. For this purpose the actuating slide I 42 has associated with it detent mechanism, comprising a rack I52 mounted upon the about the shaft. This detent I56 is urged against therack by aspring I60, and has a projection I62 WhlCh GXIZBIIdS outside the detent I54 to re ceive its contact when thelatter is separated from the rack. Secured to one extremity of the shaft I56 is an arm I64 (Fig. 1) having a lateral projection IBBentering an opening in ,a block I 51 guided in a slot in a normally substantially vertical arm I68 of a lever IIEI' fulcrumed upon the head. During the movement of the slide I 42 the projection I66gmay travel freely along the slot. A spring I12 exerts its'force to hold the lever raised and by pressing the forward wall of .the slot against the block I 61 forces the detent I54 into engagement with the rack I52. When, after a heelingoperation, the head I6v rises to remove the pressure from the work, a projection I14 from the lever "I strikes a horizontallyentending contact member I16 which may be adjustably secured to the frame II by slot-and-screw connections H8. This engagement urges the rear wall of the slot in the lever arm. I68 against. the block I67, rotating the shaft I56 anti-clockwise (Fig. 7) and withdrawing the detent I 54, from the rack. The detent I54, by engagement with the projection I62, releases the associated detent'l58, leaving the slide I42 free to'assume its normal position.

Except for the novel features with their various adjustments which have already been discussed, the operating procedure in connection with the machine of this invention may be similar to those.

of the Standish and Benjamin patents mentioned and requires no description.

Having described by invention, what I claim as new and desire to secure by Letters Patent of the United States is: I g 1 1. In a fastening-inserting machine, a support, members mounted to move upon the support and having fastening-receiving passages, means arranged toposition simultaneously a plurality of the members in'a'ccordance with aportion of a previously fastening-inserting design, and meansloperable independently of theflrst-mentioned m'eans and arranged to position simultaneously a plurality of members different fro'mithose first acted upon in accordance'with another portion of such fastening-inserting design. I I

2. In a fastening-inserting machine, a support, members mounted to move upon the support and having fastening-receiving passages, means arranged to position certain of the members in'ac-' cordance with a portion of a. fastening-inserting design, means operable independently of the firstmentioned means and arranged to position certain other of the members in accordance with a different portion of such fastening-inserting design, and means for compelling the positioning means to act together. 7

3. In a heel-attaching machine, a nailing die,

nail-tubes mounted to move in the die, a member movable in engagement with a group of tubes to position said tubes in accordance with a portion the loader, means arranged to position a group of the tubes in accordance with a portion of a nail ing design, and means operable independently of a nailing design, and a member movable in en- 5 of the first-mentioned means and arranged to poa different portion of such nailing design,

- 5. In a fastening-inserting machine, co-operating supports, members mounted to move on each support and having fastening-receiving passages, the passages of: the members on one support delivering fastenings to the passages of the members on the other support, means arranged to position certain of the members upon each support in acsition another group of tubes in accordancewith cordance with a portion of a fastening-inserting design, and means operable independently of the first-mentioned means and arranged to position sign, and means for causing the positioning means or both supports to act simultaneously. I

"'7. In a heel-attachingvmachine, a nailing 'die, nail-tubes mounted to move in thedie, means arranged to position a group of the tubes in ac cordance with a portion of a nailing design, means operable independently of the first-mentioned means, and arranged to position anothergroup or the tubes in accordance with a different portion of such a nailing design, a traveling nail-loader delivering to the die, nail-tubes mounted'to move upon the loader, means arranged toposition a group of the: loader-tubes to correspond to, a group of the die-tubes, and means operable independently of the first-mentioned loader-tubepositioning means and arranged to position another group of the loader-tubes to correspond to the'second group of die-tubes.

V 8. Ina fastening-inserting machine, a support, a guide member carried by the support, fastening-receiving tubes movable upon the guide member and a plurality of actuating members cooperating-with the guide memberand being respectively movable in contact with different tubes. 9.; In a fastening-inserting machine, a'suppor't,

a guide member carried by the support, fasteningereeeiving tubes movable upon the guide memher, a plurality of actuating members co-operati-ng with the guide member and being respective-. ly movablein contact with differenttubes, and latching means for causing the actuating members to move together, n

I 19. In a fastening-inserting machine, a support, a guide member carried bythe support and provided with slots, fasteningereceiving tubes movable in said slots, a plurality of actuating members each having tube-receiving slots intgr secting the planes of different groups of guide s ots, and means a a ged t mo t ac ua n members independently of each other. I

111. In a heel-attaching machine, a jack, nailtubes mounted therein, a guide-plate fixed in the jack and having slots through which the nailtubes pass, and two cam-plates slidable upon the jack and each having slots receiving groups of tubes difierent from the associated cam-plate. I

, 12; In a heel-attaching machine, a loader block, nail-tubes movable therein, a guide-plate fixed in the loader-block and having slots through which the nail-tubes pass, and two cam-plates slidable upon the block and each having slots receiving groups of tubes difierentfrom the associated cam-plate. I 13. In a heel-attaching machine, a jack, nailtubes mounted therein, a guide-plate fixed in the jack and having slots through which the nailtubes pass, two cam-plates slidable upon thejack andeach having slots receiving groups of tubes different from the associated, cam-plate, and loading mechanism including a loader-block traveling from a nail-receiving position to a nail-dev; livering position overthe jack, nail-tube's'mov able upon the loader-block, a guide-plateiixed upon the loader-block and'having slots which register with the guide-plate-sloits of the jack.

in the delivering positionof the loader-block and tvvo cam-plates slidable upon the block and each having tube-receiving slots corresponding respectively to those of the cam-plates of the jack.

, j 14. In a nailing machine, a support, nail-tubes movable thereon, a guide member fixed upon the support and having slots through which the nailtubes pass, a threaded sleeve rotatableupon the support, a threaded spindle rotatable in the sleeve, a cam member having threaded engagement with the sleeve and provided with slots cooperatingwith certain of the guide member slots, and a- -ca'm member having threaded engagement with the spindle and providedwith slots co-opcrating with other or" the guide member slots.

15. In a nailing machine, a support, nail-tubes movable thereon, a guide member fixed upon the support and having slots through which the nailtubes pass, a threaded sleeve rotatable upon the support, a threaded spindle rotatable. in the sleeve, locking means for separably connecting the spindle and sleeve, a .:cam member having threaded engagement with the sleeve and provided with-slots co-operating with certain of the guide member slots, and a cam member having threaded engagement with the spindle and providedwith slots co-operating with other of the guide member slots.

16. In a heel-attaching machine, a jack having nail-receiving means movable thereon, a loader movable from a nail-receiving position to a naildelivering position, said loader being provided with movable members in which are nai1=receiv-.

ing passages, and means arranged to adjust the members to difierent positions upon the loader to correspond .to the nail-receiving means, of the jack.

17. In a heel-attaching machine, a loader movable from a nail-receiving position to av nail-' delivering position, said loader being provided with movable tubes in which are nail-receiving passages, and a member contacting with a plurality of the tubes and movable to change their positions on the loader simultaneously. 18. In a heel-attaching machine, a loader movable from a nail-receiving position to a nail-delivering position, said loader being provided with tubes pivoted at their upper extremities and each having a nail-receiving-passage, and a member contacting with the tubes below their pivots and being movable to vary the location of their lower ends. I a

19. In a heel-attaching machine, a dieprovided with nail-passages, a loader movable from a nail-receiving position to a nail-delivering position over the die, said loader being provided with movable members in which are nail-receiving passages, and means arrangedto adjust the loader members to correspond to the passages in the die. I i 20. In a heel-attaching machine, a die provided with nail-passages variable in position, a loader movable from a nail-receiving position to a naildelivering position .over the die, said loader havingmovable nail-tubes, and means arranged'to vary the position or" the loader-tubes to correspond to the die-passages.

21. In a heel-attaching machine, a jack provided with nail-receiving tubes, means arranged to move the tubes to position the nails in accordance with different designs, and a movable loader provided with nail-holding elements variable in 22. In a heel-attaching machine, a jack provided with nail-receiving tubes, means arranged to move the tubes to position the nails in accordance with different designs, a movable loader pro vided with nail-holding elements variable in positicn upon said loader to supply nails to the jack for, all the designs to be "nailed, and means for moving the loader. and its variable elements under 7 the power of the machine to cause nail-delivery to the jack. t V A 23.; In a heehattaching machine, a foot-plate in'which are nail-delivering passages maintained ina constant relation,-a jack provided with nailtubes variable in position, a loader-block' movable from a nail receiving position beneath the footplate to a nail-delivering position over the jack,

said loader-block having nail-tubes pivoted at their upper extremities for registration with the foot-plate-passages, and means for moving. the lower ends of the loader-block tubes to register with thejack-tubes in different locations. 7

24. In a heel-attaching machine, a jack having abody-portion, a top-plate belonging to a set of interchangeable top-plates arranged to'be individually applied to the jack-body, each of said plates having transverse dimensions different from the associated plates and being provided with a group of nail-receiving openings, the openings of all'plates being located in the same relation'to'ion'e another, and means for separably connecting any one of the top-plates to the jackbody.

25. In a heel-attaching machine, a jack having a body-portion, a top-plate belonging to a set of interchangeable top-plates arranged to beindividually applied'to the jack-body, each of said plates having the same dimensions from front to rear of thejack and different dimensions laterally thereof and being provided with nail-receiving openings, the openings of all the plates of the set being located in the same relation to one another, and means for separably, connecting any one of the top-plates to the jack-body.

I 26. In a heel-attaching machine, a jack having a body-portion, a top-plate belonging to a set of interchangeable top-plates arranged to be individually applied to the jack-body, each of' said plates having transverse dimensions difierent from the associated plates and being provided with slots, the slots of all the plates being locatedin the same relation to one another, nail-tubes supe portedjupon the jack-body and being movable along the slots, and means for separably connectin'gany, one of the top-plates to the jack-body.

1 2'7. Ina heel-attaching machine, a jack having a body-portion, a top-plate belonging to a set of interchangeable top-plates aranged to be individually applied to the jack-body, each plate of the set having transverse dimensions diiferent from the associated plates and being provided I with slots, means for separably connecting any one of the top-plates to the jack-body, a plunger reciprocating in the jack-body, tubes movable in the jack-body and extending into the top-plateslots, drivers operating: in the tubes and being movable upon the plunger, and means mounted upon the jack-body for moving the tubes and drivers along the top-plate-slots to correspond to diiierent nailing designs. 7 28. In a heel-attaching machine, a carrier, a nail-driver movable upon the carrier and'having attests;

an inclined end for contact with the nails to be driven, and meansarranged to move the driver upon the carrier longitudinally of its axis while maintaining the inclined endin the same angular ,ofits axis, andja member, common mpmm drivers and co-operating ;with--them1toflretain them against movement. s p

31. In a heel-attaching machine, a jack, a nailtube movable transversely thereof, a plunger mov-' able longitudinally of the jack, a driver carried by the plunger, said driver operatingm the tube and being movable therewith,;means rotatable upon the driver for moving it longitudinally upon the plunger,'and means, engaging the driver during its transverse movement for preventing its rotation. 1: I j 32. In a heel-attaching machine, a jack, a nail-. tube movable transversely thereof, a plunger mov able longitudinally of the jack, a driver carried by the plunger, said driver operating in the tube and being movable therewith, means arranged rotation. during the longitudinal duringits transverse and longitudinal movement nally of its axis, and means'engaging the driver for preventing its'rotation- 33 .111 a heel-attachingmachinefa'jack, a plunger movable longitudinally of the jack, 2:.

driver carried by theplunger, means for moving the driver longitudinally upon the plunger, and means for retaining the driver against rotation during such movement, -said retaining means and driver being provided with a co-operating slot and projection. t f

34. In a heel-attaching machine, a jack, a plunger movable longitudinally of the jack, a threaded driver carried by the plunger, a retaining member f or the driver, said retaining member and driver being provided with a cooperating slot and projection, and a nut engaging the driver-thread and contacting with the retaining member. 7

35.111 a heel-attaching machine, a jack. a V I 55 plunger movable longitudinally of the Jack ,"a threaded driver carried by the plunger, a retaining member for the driver, said retaining member and driver being provided with ace-operating slot and projection, and nuts engaging the driverthread and contacting with opposite sides of the retaining member. i

36. In a heel-attaching machine, a. jack,nailtubes movable transversely thereof, a plunger movable longitudinally of the jack, a driver carried by the plunger and operating in each nailtube, each driver being movable with its tube, a retaining block for each driver, said block and driver being'provided with a -co-operating slot and projection, and a'retaining plate having slots in which all the blocks are movable. Y

3'7. In a'heel-attaching machine, a jack, a'pluv rality of nail-tubes movable transversely thereof, a plunger movable longitudinally of the jack and carrying a slotted driver-plate, drivers operating in the'tubes and movablelongitudinally of the slots, and a retaining member engaging each driver and movable in its plunger-slot, such retaining member while in the slot positively locking the corresponding driver against'rotation.

38. Ina heel-attaching machine, a jack, a plurality of nail-tubes movable transversely thereof, a plunger movable longitudinally'of the jack, said plunger carrying aslotted driver-plate and being formed in spaced sections provided with pairs Of registering slots, a driver operating in each tube and lying in a pair of slots, a guide-blocl for each driver movable in a slot in one plate-section, and a retaining block for each driver movable in a slot in the other plate-section.

39. In a heel-attaching machine, a jack, a pluralit'y of nail-tubes movable transversely thereof, 'a. plunger movable longitudinally of the jack, said plunger carrying a slotted driver-plate and being formed in spaced sections provided with pairs of registering slots, a threaded driver operating in each tube and lying in a pair of slots, a guideblock for each driver movable in a slot in one plate-section, a retaining block for each driver movable in a slot in the other plate-section, and a pair of nuts threaded upon each driver at opposite sides of the retaining block.

40. In a heel-attaching machine, a shoe-support, and a heel-pressure head movable toward and from the support and having heel-contact members, a carrier for plural contact members movable on the head, an actuator movable on the head and arranged to move one of the contact members upon the carrier and means forming a part of the head and arranged to move the carrier and actuator.

41. In a heel-attaching machine, a shoe-support, and a heel-pressure device co-operating with the support and having a carrier and an actuator movable upon it, a heel-contact member mounted upon the carrier, a second heel-contact member pivoted upon the carrier and engaged by the actuator and means arranged to move the carrier and actuator in opposite directions.

42. In a heel-attaching machine, a shoe-support, and a heel-pressure device co-operating with the support and havingheel-contact members, a movable carrier for plural contact members, a movable actuator arranged to move one of the contact members upon the carrier and in one direction only, a yieldable member connecting such contact member and another portion of the pressure device and means arranged to move the carrier and actuator.

43. In a heel-attaching machine, a shoe-support, and a heel-pressure device co-operating with the support and having a carrier and an actuator movable upon it, a heel-contact member mounted upon the carrier, a second heel-contact member pivoted upon the carrier, means for forcing the second heel-contact member and actuator into yieldable engagement and means arranged to move the carrier and actuator in opposite directions.

44. In a heel-attaching machine, a shoe-support, and a heel-pressure device co-o-perating with the support and having a carrier and an actuator movable upon it, a heel-contact member mounted upon the carrier, a second heel-contact member pivoted upon the carrier and engaged by the actuator, an interposed member variable in position to receive such engagement and means arranged to move the carrier and actuator in opposite directions.

45. In a heel-attaching machine, a heel-pressure-head, a slide movable upon the head, a

tread-contact member mounted upon'the slide, a rear contact member pivoted upon the'slid'e, and a second slide movable upon the head and engaging the rear contact member.

46. In a heel-attaching machine, a heel-pressure-head, a slide movable upon the head, a

tread-contact member mounted upon the slide, 7

a rear contact member pivoted upon the slide, a second slide movable upon the head andenga'ging the rear contact member, and a spring join ing the rear contact member to the head.

4'7. In a heel-attaching machine, a heel-pressure-head, a slide movable upon the head, a tread-contact member'mounted uponthe slide, a rear contact member pivoted upon the slide, a second slide movable upon the headand engaging the rear contact member, a screw threaded into the second slide and being engaged by the rear member, and means for yieldably forcing the screw and the rear contact member together.

48. In a heel-attaching machine,'a heel-pressure-head, a slide movable upon the head, a tread-contact member mounted upon the slide, universal connections between the tread-contact member and the slide, a rear contact member pivoted upon the slide, and a second slide movable upon the head and engaging the rear contact member.

49. In a heel-attaching machine, a heel-abutment having co-operating members furnishing a universal joint, means for securing one of the joint-sections in place upon the abutment, a heelcontact plate engaging the other joint-section, and yieldable means for connecting the plate and abutment to hold the plate and joint assembled.

50. In a heel-attaching machine, a heel-abutment having co-operating members furnishing a universal joint, means for securing one of the joint-sections in place upon the abutment, a heelcontact plate engaging the other joint-section,

and a spring passing through the joint-sections and connected to the plate and abutment.

51. In a heel-attaching machine, a heel-pressure-head, two slides movable upon the head, two heel-contact members mounted upon one of the slides for respective engagement with the treadsurface and rear of a heel, connecting means for the slides, and means for locking one of the slides against movement in one direction.

52. In a heel-attaching machine, a heel-pressure-head, two slides movable upon the head, two heel-contact members motuited upon one of the slides for respective engagement with the tread-surface and rear of a heel, connecting means for the slides, means for locking the second slide against movement in one direction, and means operable upon movement of the head for releasing the lock.

53. In a heel-attaching machine, a heel-pressure-head, a slide movable upon the head, two heel-contact members mounted upon. said slide, a second slide movable upon the head in engagement with one of, the contact members, and detent mechanism connecting the head to the second slide.

54. In a heel-attaching machine, a heel-pres-' slide and acting upon the detent mechanism to release the slide upon movement of the head.

55. In aheel-attaching machine, aheel-pressure-head, a slide movable upon the head, a tread-contact member mounted upon the slide, a

rear contact -member pivoted upon the slide, a

second'slide movable upon the head and engaging the rear contact member, and a detent mechanism connecting the head and said second slide.

56. In a heel-attaching machine, a, frame, a pressure-head movable thereon, aheel-contact member mounted upon the head, an actuating member for the contact member, a detent pivotedj upon the actuating member, and a rack carried .by the head and engaged by the detent.

57; In aheel-attaching machine a frame, a

pressure-head movable thereonQa heel-contact member mounted upon the head, an actuating member forthe-contact member, a detent pivbtedupon the actuating member, a rack carried by the head and engaged by the detent, an arm fixed to the detent-pivot, and means contacting with the arm for separating the detent from the rack. r

58. Ina heel-attaching machine, a frame,- a

pressure-head movable thereon, a heel-contact member mounted upon the head, an actuating member for the contact member, a detentpivranged, to prevent reverse movement of the rear contact member.

ELMER R. POPE.