US2293624A

US2293624A - Fastening-inserting machine

Info

Publication number: US2293624A
Application number: US372307A
Authority: US
Inventors: Winfield H Parkhurst
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1940-12-30
Filing date: 1940-12-30
Publication date: 1942-08-18
Anticipated expiration: 1959-08-18

Description

Aug. 18, 1942.

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Patented Aug. 18, 1942 UNITED STATES PATENT OFFICE FASTENING-INSERTING MACHINE Application December 30, 1940, Serial No. 372,307

46 Claims.

This invention relates to machines for securing work-parts by the insertion of fastenings, and is herein disclosed as embodied in a machine for attaching heel-parts to shoes in a manner similar to the apparatus of Letters Patent of the United States No. 2,207,742, La Chapelle, July 16, 1940, which employs fastenings severed from strings of fiber, or the like.

It is an object of my invention to improve the operation of such machines as that of the patent, and to render them more convenient for the operator. In the attainment of this object, the following features are involved. The pressure which the operator may apply to the work in holding it for the insertion of the fastenings is limited to a predetermined amount. This is of particular utility in connection with such readily compressible parts as rubber lifts or heels. The adjustment of the extent of movement of the fastening-inserting drivers is facilitated. In heel-attaching, this is useful in changing from rubber-work to leather-Work. In the use of fiber fastenings, the parts to be secured are pricked by the drivers before the inserting stroke, and, as in the preceding feature, this is made easy for the operator. The form of the Work may render it desirable to prick less deeply for the fastenings over some areas, than other others. This I effect automatically under the control of mechanism for transferring fasteners to the inserting mechanism. There is provided a heelor other Work-holder arranged for ready interchangeability to present articles of difierent size for the inserting operation, and which allows for the substitution of Work-engaging portions of the fastening-inserting mechanism. For changes in the inserting design, adapting means is placed between the feeding mechanism and transferring mechanism, so, with minimum effort, the operator may direct the strings of material from a constant arrangement of passages at the feeding mechanism, to differently arranged groups of passages in which the fastenings are transferred to the inserting mechanism. As the work is pricked to different extents, when its thickness changes, the length of the fastening material fed is correspondingly varied, and, to give the fastenings better holding power as they are compressed in driving, I advance an excess of fasteninglength over the depth of pricking, this excess being proportionate to the variation in length.

In the accompanying drawings,

Fig. 1 shows the lower portion of a particular embodiment of my improved machine in broken front elevation;

3o influence of a rotatable power-shaft I3.

Fig. 2 is a broken side elevation thereof;

Fig. 3, a broken perspective view of the locking mechanism for the jack;

Fig. 4, an enlarged central Vertical section taken through the upper portion of the machine;

Fig. 5, a full front elevation thereof;

Fig. 6, a full horizontal section on the line VI--VI of Fig. 4;

Fig. 7, a horizontal section on the line VIIVII of Fig. 3; and

Fig. 8, an enlarged detail, in side elevation, of the fiber-feeding mechanism.

In its general characteristics, the present machine resembles that of the above-mentioned patent. There is, however, but a single workpricking and fastening-inserting mechanism M, with its fiber-shearing and -loading mechanism L. The features common to the two machines will be but briefly described. The work, as a shoe S to be heeled (Fig. 2), is supported upon a jack J beneath a die and abutment l8 of the mechanism M, with which die is associated a holder H retaining against the underside of the die a toplift 2, which may be of rubber, and, below this, a heel-base h. The heel-seat of the shoe is brought into preliminary engagement with the heel-base in the holder by actuation of a treadle l2, and receives final work-clamping pressure under the ciprocatory drivers I 4 of the inserting mechanism M act, through fastening-receiving passages II in the die, to first prick through the heel-parts and into the heel-seat of the shoe, and, upon a second movement, to insert fastenings in the pricked openings. These fastenings preferably consist of lengths cut from strings of fiber J (Fig. 8), advanced from feeding mechanism F to the loading mechanism L. The feeding mechanism is operated, under the influence of the pricking stroke of the drivers I 4, to advance the correct lengths of the fiber strings into the passages in the loading mechanism. Said loading mechanism then acts to shear ofi discrete fastenings and transfer these above the die-passages, presenting them to receive the inserting stroke of the drivers.

Considering the work-support or jack J, this may be as before, but an improved mechanism is provided for elevating it and the work into engagement with the die ll], together with means whereby the pressure applied through the treadle l2 may be limited. By this means is avoided distortion of rubber lifts, if excessive force is applied by the operator. Referring to Figs. 1, 2, 3 and 7 of the drawings, a bracket I5, upon which,

the jack J is slidable horizontally, has at its underside a block I6 guided for vertical movement in the frame H of the machine, and is provided with a vertical threaded bore receiving a screw I8 rotatable upon a second block 26, also movable vertically upon the frame. A cam 22 upon the driving shaft I3, through the just indicated connections, applies final clamping pressure to the jacked work against the die. Engagement of the Work with the die has previously been effected to give preliminary pressure through the following connections to the treadle I2. This treadle projects from the lower, extremity of a slide 26, guided in vertical ways in a transmitting slide 26 movable in similar ways in the frame (Figs. 3 and 7). In the slide 26 is a vertical bore, in which is a compression-spring 36 resting at its lower extremity upon a forward projection 32' from the slide 28. Between the bottom of the slide 26 and the projection 32, there is a space so said slide may move down, compressing the spring. A weight 34 (Fig. I), joined to the slide 28 by a cable 36 running over guide-

rolls

38, 36 upon the frame, holds the treadle normally raised. Fast upon the screw I8 is a pinion 46, with which meshes a rack 42, guided for horizontal reciprocation upon the frame. Also meshing with the rack is a pinion 44, secured to a vertical shaft 46 journaled in the frame. The shaft 46 has fast upon it a spiral pinion 48, which meshes with a spiral rack 56 movable in a vertical guide 52 attached to the frame. The rack is joined by a link 54 to the slide 28. A horizontal extension from the rack, to which the link is connected, may engage the lower extremity of the shaft 46 to furnish a stop for the upward movement of the slide 26 and the treadle. Guided for movement transversely of the machine in horizontal ways in the slide 28 are

opposite blocks

56, 56, the outer sides of which have at their inner extremities downwardly and inwardly inclined ribs 56, movable in correspondingly inclined grooves 59 in the adjacent inner wall of the slide 26. At the outer extremities of the blocks are vertical series of locking teeth 66, which, when brought into engagement with opposed Vertical series of teeth 62 upon the frame I'I, secure the slide 28 against downward movement. With downwardly and inwardly inclined surfaces 64 at the inner ends of the blocks, contact complementally inclined surfaces 66 upon a wedge 68 attached to the slide 26.

When the operator depresses the treadle I2, the slide 26 is lowered, and, without compression of the spring 36, causes the depression of the slide 28, the teeth 66 upon the blocks 56 being at this time held away from the frame-teeth 62 by the ribs 56 and grooves 59. As the slide 28 descends, it draws down, through the link 54, the rack 56.

This, through the pinion 48, shaft 46 and pinion 44, shifts the rack 42, rotating the pinion 46 to turn the jack-screw I8. Said screw, acting upon the bracket I5, raises it with the jack. J to bring the work against the die I6. Upon establishment of this contact and continued downward movement of the treadle, the spring 36 is compressed, the slide 26 moving relatively to the slide 28. The surfaces 66 of the wedge 68, pressing against the surfaces 64 of the blocks 56, urge these outwardly, causing the block-teeth 66 to engage the frame-teeth 62, and locking the slide 28'to the frame. Consequently, further depression of the treadle has no effect upon said slide and the connected jack, the compression ofthe work being limited by the degree of compressibility of the spring 36. But when the treadle is released and elevated by the weight 34, the grooves 59 and ribs 56 upon the slide 26 and blocks 55, respectively, cam these blocks inwardly to effect positive withdrawal of their teeth from the frame-teeth. Because of this locking of the treadle, there is limited the preliminary pressure which the operator may apply to the work, and which, when added to the final pressure created by the cam 22, might be excessive.

The die I6 is interchangeably latched at I6 in the frame, and may have its fastening-receiving passages II arranged in a multiple of the inserting designs which are to be employed. The drivers I4, which co-operate with the passages in the die, are mounted upon a plate I4 carried upon a top-girt 18 (Fig. 5). This top-girt is secured to the upper extremities of side-

rods

66, 66, guided for vertical reciprocation in the frame and operated from the driving shaft I3. This may be, in the manner of the previously mentioned patent, through a work-pricking stroke and a shorter fastening-inserting stroke. To vary the extent of downward travel of the drivers to adapt the machine to operate upon different types of work, as the attachment of rubber lifts and leather heels, the vertical. position of the driver-plate I4 is made adjustable. It is directly mounted in ways in a carrier-plate 82 and is separably latched in place at 8|. The carrier-plate is guided for vertical movement in the top-girt andhas extended transversely at its upper side inclined ways, along which a Wedge 84 is movable (Fig. 4). At its upper side, the wedge may be shifted along horizontal ways in the top-girt. This is effected by a screw 86 threaded into the wedge and being held against longitudinal movement by the extension of a hand-wheel 88, fastened upon it, into a recess at the underside of the top-girt. By rotating the hand-wheel and thus moving the wedge, the carrier-plate, driver-plate and drivers may be raised or lowered, and the plane in which the inserting travel of the drivers terminates similarly altered.

To vary conveniently the depth of the pricking stroke of the drivers I4, the top-girt I6 has a vertical extension 96, across the upper portion of which is secured a contact-plate 92. At the opposite sides of the extension are vertical ways, in which a slide 94 is guided. Movable transversely in ways at the bottom of the slideis an eccentric-strap or block 95. Fitting within an opening in this block is an eccentric 96, fast upon the inner end of a spindle 98 rotatable in a bridge I66 between the opposite sides of the frame, said bridge being located in front of the side-rods. Secured to the outer end of the spindle, is a hand-crank I62 carrying a locking pin I64, which may enter any one of a circular series of openings I66 formed in a disk I66 attached to the front of the bridge. Upon the slide 64, in vertical alinement with the contactplate 92, a cushion or bumper II6, of yieldable material, is carried. As the drivers make their downward pricking stroke, the plate moves into engagement with the cushion, stopping the de-. scent of the top-girt and, therefore, of the drivers. Thepoint at which this occurs will depend upon the vertical position of the cushion. This is determined by the angular adjustment of the eccentric 96, controlled by the disk-opening I66 in which the plunger I64 has been placed by the operator. The range of adjustment may be increased by substituting contact-plates of different thickness. There may be associated with the openings in the disks, designations showing the depth of pricking which will result from the positioning f the eccentric by the use of a particular opening.

Some of the drivers I4, as those inserting the fastenings nearest the breast of a heel, operate over areas of the heel-seat which are considerably curved outwardly. For this reason,

it is desirable that the depth of insertion, and therefore the pricking stroke, shall be less than that of the companion drivers. When, however, the inserting stroke of the drivers is made, they should all advance to the same plane to correspondingly locate the outer ends of the fastenings. Referring particularly to Fig. 4 of the drawings, the two breast-drivers are carried by a secondary plate H2, guided for vertical movement at the front of the primary plate I4. At its upper side, the plate II2 has a T-projection II4, guided in complemental ways in an adjusting wedge II6 provided with opposite projections H8, H8 movable in upwardly and rearwardly inclined ways in the plate I4. An expansionspring I urges the wedge outwardly, to so occupy the space between the plates I4 and H2 as to hold down the latter.

Upon the inner side of a door I22, hinged upon the frame and normally closed as a guard for the inserting mechanism M, a vertical plate I24 is pivotally supported upon arms I26, I26, it being urged inwardly by a spring-actuated plunger I28 slidable horizontally in the door. With the door closed, the plunger forces the plate against a roll I30, rotatable upon the forward end of the wedge IIG, this being carried rearwardly and upwardly in its inclined ways against the force of the spring I20, elevating the plate II2. As a result of this, the breast-drivers are raised to prick the work less deeply over the outwardly curved portion of the heel-seat. Rotatable upon the lower edge of the plate I24 is a roll I32, which lies in the path of the loading or fastening-delivering mechanism L, when this advances to make its delivery to the die I0. During the pricking stroke of the drivers I4, the loading mechanism is retracted, as appears in Fig. 4, and does not engage the roll I32, so the plate is held in its advanced position by the plunger I28 and the wedge H6 is forced back, as above described. During the inserting stroke of the drivers, the loading mechanism is forward over the die, at this time acting upon the roll I32 to carry back the plate I24 against the force of the plunger I28. The plate is thus withdrawn from the wedge-roll I30, and the spring I20 forces the wedge forward, lowering the plate H2 and the breast-drivers. This corresponds in vertical relation to the other drivers, so the depth of insertion of the outer ends of all the fastenings is the same. Because of the vertical extension of the roll-engaging surface of the plate I24, it exerts its controlling influence upon the wedge IIB, regardless of the vertical travel of the wedge-carrying driver-plate I4.

It may be desired to attach with this machine either heel-lifts of leather, or the like, or yieldable lifts of rubber. In the first instance, the die I0, at its underside, should present a smooth surface to the work. In the second, it is preferable to have upon the die frusto-conical projections I33 about the lower openings of the passages I I, these either seating in the usual depressions in the tread-surface of the lift, or, in absence of these, entering and compressing the yieldable material. I satisfy these conditions by the application to the die of interchangeable contact-plates, one of which is shown at I34 in Figs. 4 and 5 of the drawings. The one illustrated has the projections I33, and at its opposite side-edges is received by dovetail grooves in the die. It is locked in operating position by a spring-plunger I38 movable in the die, and, when this plunger is raised from a depression in the plate, may readily be withdrawn through a finger-piece I40 and replaced by another plate. This may be one with a smooth surface for leather-work, and such smooth plates, or those with the projections, have openings corresponding to a particular one of the inserting designs which are in multiple in the die.

With the underside of the plate I34 is associated the heeland top-lift-holder H. To the die I0, at each side of the plate, is secured a retaining strip I42 supporting a horseshoe-shaped heel-ring I 33, which will receive between its arms a rubber lift, somewhat compressed, and hold this against the under face of the die. This heel-ring is hinged to the strips M2 in recesses I44, and is normally latched up in horizontal position by a spring-plunger I45 mounted upon the forward extremity of one of the supportstrips, and engaging the ring. Said ring has a rearward extension i-il, upon which are movable about vertical pivots opposite forwardly extending arms M8, M8 for grasping between them a heel-base. The arms are geared at I to move together, and are drawn toward each other by a tension-spring I52 connecting them. The holder H is used in the customary manner by inserting a rubber lift in the rin and a base between the arms, it retaining one above the other for the driving of the fastenings through them into the heel-seat of the jacked shoe. When the plate I34 with the projections I33 is to be removed from or applied to the die, the latch I is freed, and the ring I 33 turned down in its pivot-recesses M l, so both the ring I46 and the arms IE3 are separated from the plate. This leaves clear a space beneath the die, through which the projections I33 may move without interference during manipulation of the plate I34. To permit the ring, with its supported arms, to be changed for elements adapted to engage heel-parts of different sizes, the pivotrecesses I44 for the ring are downwardly and forwardl inclined, being open at their lower portions (Fig. 4). Consequently, when the ring is raised and latched, it is retained in position, but, when lowered, may be separated from the die for substitution.

The strings I of fiber, which furnish the fastenings, are taken from unillustrated reels, which, to be convenient of access and for manipulation when the fastening-inserting design is changed, are supported upon the upper portion of the frame, as are also the feeding mechanisms F, F (Fig. 5). These feeding mechanisms and their actuation may be, except as to a detail which will be hereinafter considered, as in the previously mentioned patent, the fiber being advanced to the loader mechanism L step-bystep to an extent determined by the pricking stroke of the drivers I 4. This feed is produced by a pair of rolls I53, I53 (Fig. 8), geared together at I 54, and one of which is oscillated through a link E55 connected to the top-girt I8 and to a reciprocatory rack I55 meshing with a gear I51 on one of the roll-shafts. From the rolls, the fiber passes through flexible tubes I58 (Fig. 4), the lower extremities of which are inserted in Vertical passages I60 in a foot-plate I62. This footplate is attached to a vertical rod I64, movable in a guide member I66 and in an overhanging bracket IE8 mounted upon the frame, a horizontal extension of the bracket having passages 59 continuing those in the footplate. Said foot-plate may be raised and lowered through a hand-lever I!!! (Fig. 5), fulcrumed at I'I2 upon the frame and pivotally joined to the foot-plate at Ild. To an arm I16 of the lever, a rod I78 is attached, this bein urged to the right by an expansion-spring I80 to hold the foot-plate normally lowered. Depending from the foot-plate and guided in the extension of the bracket I58 is a latch-pin I82, which may enter any one of a series of openings I84 (Fig. 6) in an adapter-bar I86, which is guided in the member I85. The bar is provided along its length with a plurality of spaced groups of passages I88, arranged in accordance with the inserting designs which are to be employed and which are herein shown as three in number. These groups of passages are inclined vertically to different degrees, but at their upper extremities are identical in their relation, being arranged to register with the passages I59 and I89. Included in the loading mechanism L is a multiple fiber-shearing and -transferring block I90, containing groups of passages I92 for all the inserting designs. The inclination of the barpassages I88 is such that one of each of its groups may be brought into registration with one of the multiple designs in the block I90. This block, as in the hereinbefore cited patent, is oscillated and reciprocated by slide-and-crank mechanism we to shear oil fastenings advanced by the mechanisms F, F, through the passages I58, I69 and IE9 into the block-passages 92 and convey these fastenings into registration with the die-passages II, to be inserted in the work by the descent of the drivers I4. When the inserting design is to be altered, the strings of fiber are withdrawn from the passages in the bar I88, by turning a hand-wheel I98 (Fig. 4) upon one of the roll-shafts of each of the feeders F. Then, the lever Ill! is depressed and the foot-plate H52 lifted. This frees the bar I86 from the latch-pin I82, so said bar may be shifted longitudinally by a hand-hold 2% upon one of its extremities. When the chosen group of openings is in registration with the unvarying passages I69 and I58, as determined by a springclick ZBI carried by the member I65 and engaging one of three depressions in the bar, the release of the latch into the corresponding openings I84 again secures the bar. The inclination of its chosen group of passages correctly leads into one of the groups of multiple passages I92 in the loader-block.

The operator may wish, as the feed of the fiber J is varied under the control of the pricking stroke of the drivers I4, to proportionately increase the excess of the length of the fastenings, which is to be compressed as the drivers complete the insertion. This, I accomplish by making the pitch-diameter of the gear I51 less than the diameters of the rolls I53. Since, for any reciprocation of the rack lfit through a distance depending upon length of the pricking stroke of the drivers, the peripheries of the roll I52, turned by the smaller gear I51, will oscillate through an are greater in length than said pricking stroke, there will always be an excess of material fed to be compacted by the drivers. Further, as the depth of pricking increases, there will be a cor respondin lengthening of this excess. The fiber 75,

employed in this machine owes some ofits holding power in the work to the fact that it is made by twisting a strip helically. This is as in Letters Patent of the United States, No. 1,729,169, La Chapelle, September 24, 1929. When the fastenings formed from it are inserted, the driving pressure tends to untwist the helix, adding to its diameter. Therefore, with an increase in fastening-length, I obtain a proportionately greater force of retention, not only exerted by the pricking-controlled portion but also by the excesslength.

Let it be assumed that the apparatus is to be employed for the attachment to a shoe S of a leather base it and a rubber-lift Z, by fastenings severed from strings f of fiber. The operator makes certain that there is mounted beneath the die It! a plate I34, having lift-entering projections 833 with their passages arranged in the correct inserting design, the drivers I4 being similarly arranged upon their plates I4 and H2. The adapting bar I86 is positioned to bring the correct group of its passages I88 into registration with the foot-plate-passages I68 and the loaderblock-passages I92, the foot-plate-projection I82 latching the bar in place. The depth of the pricking stroke of the driver is determined by adjustment of the eccentric 96 and the extent of the inserting stroke by that of the wedge 84. The shoe is placed upon the jack J, and depression of the treadle I2 raises the heel-seat into contact with the cup of the base it with a pressure limited by the yield of the spring 3th Upon starting the power-operation of the apparatus, the rotation of the cam 22 applies final pressure to the work, and the drivers are reciprocated to prick said work. Then, the loader-block I 90 advances to shear fastenings from the strings I, which have been delivered from the feeders F through the adapting bar, and transfers them above the die I9. These fastenings exceed in length the depth of pricking to permit their expansion in the work. Finally, the drivers are again reciprocated to carry the fastenings out of the loader block and insert them in the pricked openings for the attachment of the heel-parts to the shoe. For these two strokes, the breast-drivers are raised by the wedge IIB during pricking to act less deeply than their companions, and are then returned with their ends in a common inserting plane, and for both are definitely fixed in position. With the return of the jack J to its normal position, the cycle of operation is completed, and the heeled shoe may be removed from the jack.

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

1. The combination with a work-supporting member, of an abutment member, the members being relatively movable to apply pressure to the work, a device for actuation by the operator to efiect such relative movement, and means made effective during the movement of the device for locking one of the members against movement and thereby preventing increase of pressure by the operator..

2. The combination with a work-supporting member, of an abutment member, the members being relatively movable, a device for actuation by the operator to effect such relative movement and to apply preliminary pressure to the work, mechanism through which final pressure is appliedto the work, and means made elTectiVe during the movement of the device for locking one of the members against movement andthereby preventing increase of pressure by the operator during the application of final pressure.

3. The combination with a work-supporting member, of an abutment member, the members being relatively movable to apply pressure to the work, a device for actuation by the operator to effect such relative movement, and means made effective during the movement of the device and after the application of a predetermined pressure for locking one of the members against movement and thereby preventing increase of pressure by the operator.

4. The combination with a work-supporting member, of an abutment member, the members being relatively movable to apply pressure to the work, a device for actuation by the operator to effect such relative movement, an element through which the effect of the device is transmitted, means for locking said element against movement, and means acting in the relative movement between the device and transmitting element for operating the locking means.

5. The combination with a Work-supporting member, of an abutment member, the members being relatively movable to apply pressure to the work, a device for actuation by the operator to effect such relative movement, an element through which the effect of the device is transmitted, means for locking said element against movement, a spring connecting the device and transmitting element, and means acting upon yield of the spring for operating the locking means.

6. In a fastening-inserting machine, fasteninginserting mechanism, a jack movable toward and from the inserting mechanism, a slide movable by the operator, a slide connected to the jack, a spring through which movement of the operator-slide is transmitted to the jack-slide, a looking member movable upon the jack-slide for engagement with a relatively fixed element, and means for actuating the locking member upon yield of the spring.

'7. In a fastening-inserting machine, fasteninginserting mechanism, a jack movable toward and from the inserting mechanism, a slide movable by the operator, a slide connected to the jack, a spring through which movement of the operator-slide is transmitted to the jack-slide, and a locking member movable upon the jack-slide for engagement with a relatively fixed element, the locking member and operator-slide having complemental inclined surfaces which contact upon yield of the spring.

8. In a fastening-inserting machine, a frame,

fastening-inserting mechanism carried thereby, a jack movable upon the frame toward and from the inserting mechanism, a slide movable by the operator, a slide connected to the jack, a spring through which movement of the operator-slide is transmitted to the jack-slide, locking members oppositely movable upon the jack-slide into engagement with the frame, said locking members being provided with oppositely inclined opposed surfaces, and a wedge projecting from the oper-' 10. In a fastening-inserting machine, fastening-inserting mechanism, a jack movable toward and from the inserting mechanism, a slide movable by the operator, a transmitting slide, a spring interposed between the slides, a rack connected to the transmitting slide, a second rack connected to the jack, a shaft, and gears upon the shaft meshing with both racks.

11. In a fastening-inserting machine, fastening-inserting mechanism, a jack movable toward and from the inserting mechanism, a slide movable by the operator, a transmitting slide, a spring interposed between the slides, a locking member movable upon the transmitting slide for engagement with a relatively fixed element upon yield of the spring, a rack connected to the transmitting slide, a second rack connected to the jack, a shaft, and gears upon the shaft meshing with both racks.

12. In a fastening-inserting machine, an inserting die provided with fastening-receiving passages, rods reciprocating at opposite sides of the die, a top-girt joining the side-rods and provided with horizontal ways, a wedge movable in the ways, a carrier-plate guided for vertical movement in the top-girt and having ways in which the wedge is received at its underside, a driver-plate separably secured to the carrier plate, and drivers depending from the driverplate and operating in the die-passages.

13, In a fastening-inserting machine, inserting mechanism comprising a reciprocatory carrier, fastening-drivers mounted thereon, a stop for the carrier, and means for supporting the stop in different vertical positions to arrest the travel of the carrier.

14. In a fastening-inserting machine, inserting mechanism comprising a reciprocatory carrier, fastening-drivers mounted thereon, a stop for the carrier, and an adjusting member movable by the operator to differently position the stop.

15. In a fastening-inserting machine, inserting mechanism comprising a reciprocatory carrier, fastening-drivers mounted thereon, a stop for the carrier, a rotatable adjusting member for the stop, and means for fixing the adjusting member in different angular positions.

16. In a fastening-inserting machine, inserting mechanism comprising a reciprocatory carrier, fastening-drivers mounted thereon, a stop for the carrier, means for supporting. the stop in different vertical positions to arrest the travel of the carrier, and means arranged to support the drivers in different vertical positions upon the carrier.

17. In a fastening-inserting machine, inserting mechanism comprising a reciprocatory carrier, fastening-drivers mounted thereon, a stop for the carrier. means for supporting the stop in different vertical positions to arrest the travel of the carrier, and a member movable upon the carrier and arranged to support the drivers in different vertical positions thereon.

18. In a fastening-inserting machine, inserting mechanism comprising a reciprocatory carrier, fastening-drivers mounted thereon, a movable stop guided by the carrier, and an adjusting member for the stop mounted upon a member fixed relatively to the carrier and variable in position by the operator.

19. In a a fastening-inserting machine, reciprocatory side-rods, a top-girt joining the siderods and having a contact-portion, a slide guided in the top-girt, means for supporting the slide in different positions for engagement by the contact-portion of the top-girt, and fasteningdrivers carried upon the top-girt.

20. In a fastening-inserting machine, reciprocatory side-rods, a top-girt joining the side-rods and having a contact-portion, a slide guided in the top-girt, an eccentric by which the slide is supported, means arranged to fix the eccentric in different angular positions, and fasteningdrivers carried upon the top-girt.

21. In a fastening-inserting machine, reciprocatory side-rods, a top-girt joining the side-rods and having a contact-portion, a slide guided in the top-girt, means for supporting the slide in different positions for engagement by the contact-portion of the top-girt, a wedge movable upon the top-girt, a plate carried by the wedge, and drivers depending from the plate.

22. In a fastening-inserting machine, a reciprocatory carrier, fastening-drivers mounted thereon, a portion of the drivers being held against movement upon the carrier while others are movable thereon in the direction of fastening-insertion, and a member movable upon the carrier to fix in position the last-mentioned driver or drivers.

23. In a fastening-inserting machine, a reciprocatory primary carrier, fastening-drivers mounted thereon, a secondary carrier movable upon the primary carrier, drivers mounted upon the secondary carrier, and an adjusting member movable to different positions between the primary carrier and the secondary carrier.

24. In a fastening-inserting machine, a reciprocatory primary carrier, fastening-drivers mounted thereon, a secondary carrier movable upon the primary carrier, drivers mounted upon the secondary carrier, and a wedge interposed between the primary and secondary carriers and by which said secondary carrier is supported.

25. In a fastening-inserting machine, a reciprocatory carrier, fastening-drivers mounted thereon, a portion only of the drivers being movable upon the carrier, an inserting-die with which the drivers co-operate, a member movable to deliver fastenings to the die, and an adjusting member movable upon the carrier under the control of the delivering member to vary the position of the drivers upon the carrier in the direction of fastening-insertion.

26. In a fastening-inserting machine, a reciprocatory carrier, fastening-drivers mounted thereon, a portion only of the drivers being movable upon the carrier, an inserting-die with which the drivers co-operate, a member movable to deliver fastenings to the die, an adjusting member movable upon the carrier to vary the position of the drivers upon the carrier in the direction of fastening-insertion, and a member set by the delivering member to control the adjusting member.

2'7. In a fastening-inserting machine, a reciprocatory primary carrier, fastening-drivers mounted thereon, a secondary carrier movable upon the primary carrier, drivers mounted upon the secondary carrier, an adjusting member movable upon the primary carrier and engaging the secondary carrier, an extended member along which the adjusting member travels in the movement of the primary carrier, and means for setting the extended member in different positions to control the adjusting member.

28. In a fastening-inserting machine, a reciprocatory carrier, fastening-drivers mounted thereon, 'a portion of the drivers being movable uponthe carrier, an inserting-die with which the drivers co-operate, a member movable to deliver fastenings to the die, an adjusting member movable upon the carrier under the control of the delivering member to vary the position of the drivers upon the carrier, a member urged into engagement with the adjusting member to position the movable drivers, and means for withdrawing such engaging member from the adjusting member.

29. In a fastening-inserting machine, inserting mechanism comprising a carrier and drivers movable thereon, a movable closure guarding the inserting mechanism, and means carried by the closure for controlling the position of the drivers.

30. In a fastening-inserting machine, inserting mechanism comprising a carrier and drivers movable thereon, an adjusting member for the drivers movable upon the carrier, a door guarding the inserting mechanism, and a member movable upon the door for engagement with the adjusting member.

31. In a fastening-inserting machine, inserting mechanism comprising a carrier and drivers movable thereon, an adjusting member for the drivers movable upon the carrier, a door guarding the inserting mechanism, a member movable upon the door for engagement with the adjusting member, and a member movable to deliver fastenings to the inserting mechanism and contacting with the engaging member to set it in different positions.

32. In a fastening-inserting machine, a fastening-receiving die, a reciprocatory carrier, drivers fixed in the carrier and co-operating with the die, drivers movable upon the carrier and co-operating with the die, the carrier and drivers being movable through work-pricking and fastening-inserting strokes, a wedge interposed between the carrier and the movable drivers, a plate with which the wedge contacts in the reciprocation of the carrier, means for forcing the plate toward the wedge to elevate the drivers upon the carrier for the pricking stroke, and means for retracting the plate to release the wedge for lowering the drivers upon the carrier during the inserting stroke.

33. In a fastening-inserting machine, a fastening-receiving die, a reciprocatory carrier, drivers fixed in the carrier and co-operating with the die, drivers movable upon the carrier and co-operating with the die, the carrier and drivers being movable through work-pricking and fastening-inserting strokes, a wedge interposed between the carrier and the movable drivers, a plate with which the wedge contacts in the reciprocation of the carrier, means for forcing the plate toward the wedge to elevate the drivers upon the carrier for the pricking stroke, a 1oaderblo'ck delivering fastenings to the die, said loader-block acting upon the plate to free the wedge for lowering the drivers upon the carrier during the inserting stroke.

34. In a heel-attaching machine, inserting mechanismcomprising a die provided with fastening-receiving passages, a lift-holding ring pivoted upon the die to be swung away therefrom, means for releasably retaining the ring in operating position, and heel-base-holding arms pivoted upon the ring.

35. In a heel-attaching machine, inserting mechanism comprising a die provided with fastening-receiving passages and spaced retaining strips secured to the die, a lift-holding ring pivoted upon the retaining strips, a latch movable upon one of the strips for engagement with the ring, and heel-base-holding arms pivoted upon the ring.

36. In a heel-attaching machine, mechanism comprising a die provided with fastening-receiving passages and spaced retaining strips secured to the die, there being in the strips recesses opening at their sides in an inclined direction from the adjacent surface of the die, a lift-holding ring provided with projections pivoted in the strip-recesses and separable through the inclined openings, and a latch normally securing the ring against the die.

37. In a heel-attaching machine, inserting mechanism comprising a die provided with fastening-receiving passages, means for mounting interchangeably upon the die a plate having passages registering with those in the die, and a heel-holder mounted upon the die outside the plate and being movable upon said plate to a position to free the plate for removal and replacement.

38. In a heel-attaching machine, inserting mechanism comprising a die provided with fastening-receiving passages, a plate separably mounted upon the die and having passages registering with those in the die and projections extending outwardly from the passages, a heelholder pivoted upon the die outside the plateprojections, and means for releasably retaining the heel-holder in heel-presenting position upon the die.

39. In a fastening-inserting machine, fasteing-inserting mechanism, fastening-transferring mechanism having passages arranged in a pluinserting rality of inserting designs and delivering to the inserting mechanism, means for feeding fastening material through passages having openings arranged in a single design, and adapting means movable between the feeding passages and the transferring passages for directing the fastening material from the single design of said feeding passages to the plural designs of the transferring passages.

40. In a fastening-inserting machine, fastening-inserting mechanism, fastening-transferring mechanism having passages arranged in a plurality of inserting designs and delivering to the inserting mechanism, means for feeding fastening material through passages having openings arranged in an unvarying design, and an adapting membermovable between the feeding passages and the transferring passages and provided with a plurality of groups of passages, each group of passages opening at one extremity in the design of the feeding means and at the other extremity in one of the designs of the transferring mechanism.

41. In a fastening-inserting machine, fastening-inserting mechanism, fastening-transferring mechanism having passages arranged in a plurality of inserting designs and delivering to the inserting mechanism, means for feeding fastening material through passages having openings arranged in an unvarying design, an adapting member movable between the feeding passages and the transferring passages and provided with a plurality of groups of passages, each group of passages opening at one extremity in the design of the feeding means and at the other extremity in one of the designs of the transferring mechanism, and means for latching the adapting member with any one of its groups of passages in registration with both the feeding passages and the transferring passages.

42. In a fastening-inserting machine, fastening-inserting mechanism, fastening-transferring mechanism, fastening-feeding mechanism having delivering tubes terminating in a foot-plate, a loader-block movable between the foot-plateand inserting mechanism and having passages for a plurality of inserting-designs, and an adapting bar movable between the foot-plate and the loader-block and provided with a plurality of groups of passages, any one of which may be brought into registration with the delivering tubes at the foot-plate and with one of the designs of the loader-block.

43. In a fastening-inserting machine, fastening-inserting mechanism, fastening-transferring mechanism, fastening-feeding mechanism having delivering tubes terminating in a movable footplate, a loader-block movable between the footplate and inserting mechanism and having passages for a plurality of inserting-designs, an adapting bar movable between the foot-plate and the loader-block and provided with a plurality of groups of passages, any one of which may be brought into registration with the delivering tubes at the foot-plate and with one of the designs of the loader-block, and means carried by the foot-plate for latching the bar in various positions.

44. In a fastening-inserting machine, fastening-inserting mechanism, fastening-transferring mechanism, fastening-feeding mechanism having delivering tubes terminating in a foot-plate provided with a projection, a loader-block movable between the foot-plate and inserting mechanism and having passages for a plurality of insertingdesigns, and an adapting bar movable between the foot-plate and the loader-block and provided with a plurality of groups of passages, any one of which may be brought into registration with the delivering tubes at the foot-plate and with one of the designs of the loader-block, said bar having a series of openings, any one of which may receive the foot-plate-projection.

45. In a fastening-inserting machine, inserting mechanism comprising reciprocatory drivers, means for imparting to said drivers successive work-pricking and fastening-inserting strokes, means arranged to vary the depth of the pricking stroke, and means for feeding fastening material for insertion and causing the extent of feed to vary with the depth of pricking but with the length of material advanced exceeding such depth proportionately to changes in the depth.

46. In a fastening-inserting machine, inserting mechanism comprising reciprocatory drivers, means for imparting to said drivers successive work-pricking and fastening-inserting strokes, means arranged to vary the depth of the pricking stroke, a pair of rotatable rolls engaging the material to feed it for insertion, a rack reciprocated in accordance with the depth of the pricking stroke of the drivers, and a gear meshing with the rack and through which the rolls are rotated, the pitch-diameter of the gear being less than the diameter of the rolls.

WINFIELD H. PARKHURST