US1051797A

US1051797A - Heel-attaching machine.

Info

Publication number: US1051797A
Application number: US64378111A
Authority: US
Inventors: Arthur Bates
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1911-08-12
Filing date: 1911-08-12
Publication date: 1913-01-28
Anticipated expiration: 1930-01-28

Description

A. BATES. HEEL ATTACHING MACHINE. APPLICATION FILED AUG. 15, 1903. RBNEWBD AUG. 12, 1911.

1,051,797. Patented Jan.28, 1913.

I/I//T/vfSSES- A. BATES. HEEL ATTAGHING MACHINE. APPLIUATION FILED AUG. 15, 1903. 1111111111111) 111111.12, 1911.

1,051,797. Patented M1128, 1913.

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EBEL ATTAOHING MACHINE. APPLICATION FILED AUG. 15

, 1903. EENEWBD AUG. 12, 1911.

Patented Jan. 28, 1913. I

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ARTHUR BATES, OF LEICESTER, ENGLAND, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, 0F PATERSON, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

HEEL-ATTACHING MACHINE.

Application filed August 15, 1903, Serial No. 169,643.

Specification of Letters Patent.

Patented Jan. 28, 1913.

Renewed August 12, 1911. Serial No. 643,781.

To all w/Lom t may concern:

Be it known that I, ARTHUR BATES, a subject of the King of England, and residing at Leicester, in England, have invented certain new and useful Improvements in or Relating to IrIeel-Attaching Machines, of which the following is a specification.

This invention relates to machines for operating on heels and is herein shown as embodied in a machine for attaching heels to boots or shoes.

lVith heel-attaching machines of a kind heretofore commonly employed in which the several lifts of a heel are attached to the shoe by parallel nails which are driven through the outer lifts into the inner ones in a direction perpendicular to them, certain classes of heels, for instance the tapered, coned or undercut heels of ladies boots or shoes cannot be attached securely, for as in such heels the top and outer lifts are of an area considerably smaller than that of the heel-seat lift or offset forwardly With respect to the heel seat lift and as the attaching-nails have necessarily to be at a small distance within the outside edge of the toplift, they will be at a greater distance within the edge of the heel in the heel-seat and therefore the heel-seat lift and the lift or lifts immediately above it having no nails passing through their outer or rear portions will not be securely held.

It is an object of the present invention to provide a machine by employing which this defect may be obviated and the attaching nails may be inserted in those portions of the heel which cannot be conveniently or effectively secured by nails driven from without the boot or shoe in a direction perpendicular' to the outer lift. As shown herein, this result is effected by driving the attaching nails, or part of the attaching nails, into the heel inclined longitudinally of the heel with respect to the surface they first enter.

A further object of the invention is to provide means for engaging and securely holding during the operation of the machine a series of lifts constituting a heel when, as is the case in the heels of ladies boots or shoes above referred to, the face of the outer lift is at an angle with the face of the lheelseat lift. i .i

The invention also contemplates a machine so constructed and arranged as t0 drive with precision attaching-nails through the heel-seat lift toward the outer` lift, so that by the use of such a machine nails can be driven from within a boot into the rear part of a heel which is tapered, coned or undercut. By thus driving the attachingnails or a portion of them into the rear part of a heel from within the boot, the rear portions of the heel-seat lift and of the lifts immediately adjacent are penetrated by them near the edges and the heel is much more firmly secured than when such portions of those lifts remain unperforated by nails which, driven from without as heretofore, ipierpendicularly through the lifts of a coned, tapered or undercut heel and parallel to one another, cannot be caused to extend through the marginal portions of the heelseat and contiguous lifts.

According to the illustrated embodiment of the invention, there is employed in a heel-attaching machine for the purpose above described, the combination with a post or other convenient base and a work-support adjustable upon it, of a nail-driver arranged to drive a nail in a direction away from the work-engaging face of said support into the work supported thereby, and means to retain the support in position in which its work-engaging face shall be in oblique relation to the path of the driver, that is to say, in such relation that the 'path of the driver shall not be normal or perpendicular to the plane or surface of that face but shall have the saine Obliquity thereto as the nail is to have in relation to the face of the lift into which it is to be driven. By this construction the said support will be enabled to press against the contiguous face of a sole, for instance the inner face of an innersole, in such manner as to hold the further face of that sole closely against the whole oblique surface of a heel-seat lift adjacent and opposed to it and to grip this and the other lifts firmly by forcing them against a die-block or other abutment as will be hereinafter described, notwithstandving the Obliquity of the said surface in relation to the abutment. Further, after the heel is thus gripped, the nail-driver driving a nail in t-he line of its own motion and in a direction away from the work-engaging face will drive it through the sole and through the rear portions of .the gripped heel-lifts. The arrangement bywhich the support is adjustable permits the obliquit-y of the face of the support and the inclination of the attaching nails to be varied to suit the vdifferent requirements of the work.

In United States Letters Patent No. 1,000,957, granted August. 15, 1911 upon divisional application Serial No. 571,360, led July 11, 1910, there is disclose-d and Claimed a machine constructed and arranged for driving all the attaching nails into a heel .blank obliquely from within a boot.

As illustrated herein, however, one embodiment of the invention comprises a machine 'having drivers arranged to drive a portion of the attaching nails from within theboot into the outer portions of an oblique heel-seat lift and other drivers arranged to drive attaching nails into the heel from without the top lift toward the heel-seat lift, preferably parallel with those driven in the opposite direction and Within the outer boundary of the top lift.

To this end an important feature of the invention consists in the provision of mechanism for driving heel attaching nails from Within and from without a boot o-r shoe, in combination With heel holding devices including a Vmember having a work engaging face disposed obliquely to the path of the drivers.

As herein shown the member having the obliquely disposed work engaging face comprises a plate apertured to permit the passage of the auxiliary drivers, or those which drive the attaching nails into the heel seat lift from within the boot, and said plate is mounted in such a way that the inclination of its work-engaging face relatively to the path of the drivers may be varied as desired. Driver guiding tubes or nozzles, disposed in alinement with the drivers, are iixed in a support With their ends projecting into the apertures of the oblique work-engaging plate, the apertures being so shaped as to permit angular movement of the plate relatively to the guiding tubes.

It is believed that heretofore a gang of tools has never been employed in a machine for operating upon heels as an element of the combination which includes a support With tool guiding devices fixed therein and a work-engaging plate having into which project said guiding devices, the plate being so mounted as to permit angular movement relatively to said fixed guiding devices, or so that the guiding devices are inclined in the same general direction from apertures normals to the work-engaging face of the plate at the points at which the axes of the guiding devices intersect said face. Accordingly, this novel construction constitutes an important feature of the invention. It will be apparent, moreover, that this feature of the invention is not limited in its use to a machine having mechanism for driving heelattaching nails from within and from without a boot or shoe, but is capable of general application to any machine having' tools for operating on a heel'.

The work-support is preferably, according to the illustrated embodiment of this invention, mounted upon a post. The naildriver for each nail to be driven obliquely toward and through the heel-seat lift may be a rod reciprocating in a guide, for in.- stance, in a tubular nozzle which is held in or upon any firm support; conveniently the post may be utilized to support the guide and also mechanism such as a driver-actuating head supported on and operated by a movable member of the heel-attaching machine for reciprocating the driver or drivers. A vertical nozzle or tube may conveniently serve as a guide for a nail-driver reciprocated therein, the upper end of the nozzle when the upper end of the driver is retracted into it forming a socket in which the nail is placed manually or mechanically, so as to rest upon the head of the driver, point uppermost. The work-support may be provided with holes or passages through which the nails are driven from the nozzles.

In the description following, the subjectmatter of the present invention is by way of example described in its application to a well-known type of heel-attaching machine in which a principal nail-driver and guiding and actuating devices therefor coperate to drive thel majority of the heel-attaching nails from the outer face of the outer lift through the companion lifts in a manner which has heretofore been customary, the remainder of the attaching-nails being driven parallel to them obliquely through the heel-seat lift by apparatus constructed and operating according to the present invention, the nail-driving means in said apparat-us thus becoming auxiliary in relation to the principal nail-driver.

In the accompanying drawings :-Figure 1 is a front elevation of a heel-att-aching machine of a well-known type with apparatus according to the present invention applied thereto; Fig. 2 .is a side elevation of the machine shown in front elevatio-n in Fig. 1; Fig. 3 is a side elevation, partly in section on the line 3-3 of Fig. 4), of a post which has according to this invention an adjustable lieel-support and nail-driving mechanism mounted upon it; this post is shown in position in the machine in full lines in Fig. 2 and in dotted lines in Fig. 1; above the post in Fig. 3 are shown some heel-lifts Z of an undercut heel and a die-block Gr or abutment against which the lifts are compressed by the post in the fashion hereinafter explained; Fig. 4 is a 'rear elevation corresponding to the side elevation, Fig. 3, and partly in section; Fig. 5 is a plan of the adjustable work-support forming the upper portion of Figs. 3 and 4; Fig. 6 is a front elevatio-n of a jack-carriage I forming a part of the machine illustrated in Fig. 1, movable in the frame of that machine and adapted to support the post illustrated in Figs. 1, 2, 8 and 4; Fig. 7 is a sectional plan on the line 7--7, Fig. 6; Figs. 8 and 9 are views at right angles to one another of a slider employed for a purpose hereinafter described in the jack-carriage illustrated in Figs. 6 and 7; Figs. 10 and 11 are views at right angles to one another of a shaft h mounted in the machine and hereinafter again specically referred to; Fig. 12 is a view in perspective of a heel .in which attaching nails have been inserted. Figs. 1 and 2 are on a smaller scale than that to which the whole of the remaining figures are drawn.

Like letters and reference-numerals indicate like parts throughout the drawings.

Vtith reference to Figs. 1 to 11, a description will first be given of such port-ions of those figures as are well known, are de-V scribed in the specification of prior Letters Patent of the United States to Joseph Horace Pope No. 446885, and are not in themselves of the present invention, that .is to say :#-The main frame A of the heel-attaching machine has a driving shaft B journaled in suitable bearings. This driving shaft is rotated by any usual or convenient means. Upon the driving shaft is an eccentric B8 surrounded by an eccentric strap I, the lower end of which is pivoted at e to a lower head or cross-piece E, guided in bearings in the lower front portion of the frame A. To said lower head E are secured upwardly-extending rods El, to the upper ends of which is secured a head or cross-piece F. Principal nail-drivers F:L are secured upon the head F. A stationary perforated dieblcck G is secured to the frame or standard A. This die-block, described in the specification of Patent No. 446885 aforesaid, uti-V lized for the purpose of the present invention as the abutment or one of the work engaging members herein referred to. It has perforations in it corresponding in number and position with various dispositions of the drivers F1 made according to the number and location of the nails to be driven in the heel. Loaders l deliver heel-attaching nails into the perforations 'in the die-block Gr, the loaders being provided with means whereby their nail perforations may also be suited to the number and disposition of the drivers employed at any time. A stationary block or projection A* forms a part of the fro-nt portion of the frame A. At a point above suoli stationary block is arranged a vertically-movable block ll, adapted to slide up and down in guides on the front portion of the machine and referred to hereinafter as the jack carriage support. On the top of the block Il is supported the lower end of a vertical jack-screw i the upper end of which works in a female screwthread in a jack-carriage I having ways w on its upper side on which a post K is adapted to slide out and in. The jack screw 'L' is preferably formed with a pinion on its lower end and may be rotated from a treadle suitably connected with a rack meshing with the pinion, as in the construction disclosed in said patent above mentioned.

Clamps c are secured to the under side of the die-block Gr to receive all the lifts (for example the lifts Z, Figs. 1 and 3) constituting a heel, with the exception of the toplift which is spanked into place upon them after the other liftshave been nailed to the shoe and is held in a top-lift holder with which the present invention has no concern and which therefore is not herein described.

Mounted upon t-he upper end of the post K is a movable work-support K1 pivoted to it by the transverse pivot pin /t and adapted to support upon its work-engaging face la" the heel end of the sole or innersole of a boot placed over the head of the pest in the manner indicated in Fig. 3; 7c `is an adjusting screw in a screw-threaded hole in the upper end of the post K and bearing against the underside of the worksupport K1, which support it can adjust about the pivot-pin 7c to the desired angle, the screw moving the work-support upward about the pivot-pin 7u or allowing it to move downward about the pin under the influence of gravity. The boot having been thus positioned on the post, the adjusting-screw le having been turned to cause the face la of the support K1 to assume a position in which it will bear fairly against the slanting heel-seat, and the post K having been moved in the ways 'w of the jack-carriage I. to bring its upper end with the heel-seat of the sole or innersole immediately above it underneath the perforations of the die-block G, the post is next forced upward to a height varying with the different heights of heel so as to bring the heel portion of the boot or shoe sole against the under or slant side of the series of heel lifts held by the heel clamps c. This upward movement of the post is effected by a rotation of the jackscrew i, which moves the jack-carriage I upward away from the vertically-movable block Il and from the shaft h journaled therein,

that is to say, 1n a direction which is transverse to the axis of the shaft L. One

of the filled loaders M1 is n ext swung into position above the die-block G so that its perforations coincide with those of the said die-block. The loader is then discharged allowing its nails to drop into corresponding perforations in the die-block with the nail-points resting on the heel. The head F is then moved downwardly for about one half of its stroke, and during such motion the heel is automatically and firmly held between the under-face of the perforated dieblock G and the sole of the boot by a further upward movement of the post K., a movement due to a rise of the block H, which moves the screw z' endwise and thus applies a thrust therethrough to the jackcarriage I and post K which firmly compresses the lifts of the heel between the under-face of the die-block G and the post and shoe-sole and holds the heel, shoe vand post firmly in position during the nailing operation. The motion of the head or crc-sspiece F continuing, the principal naildrivers F l drive the nails from the dieblock into the heel and sole and cause the points of the nails to be clenched against the Lipper or work-supporting face of the work-support K1. lf a top-lift is afterward to be spanked on to the heel, the nail-heads are left slightly projecting above the heel as is common in this art. The shaft /L in the block H is oscillated in its bearings in time with the rise and fall of the block H, that is to Say, it rotates in the direction of the arrow thereon (Fig. 1) through an arc of say about 20O when the block H rises,

and in the reverse direction to the same extent when the block descends; the shaft z. is given this kind of oscillation by reason of its employment as part of a mechanism for bringing about the rise and fall of the block H, such mechanism forming no part of the present invention.

The heel-attaching machine and the operations of its parts as thus far described in detail are not of the present invention; they effect the attaching of heels in a manner well understood and by nails which, like the nails X in Fig. 12, are perpendicular to the several lifts, parallel to one another,

. and within the boundary of the smallest of those lifts. Still with reference to Figs. l to 11, but having regard now to improvements according to the present invention whereby the remainder of the attaching-nails, for example the nails Y of F ig. l2, can be driven in the direction of the outer lift through the face of a heel-seat lift which is at an angle to the outer lift and to the nails that varies in different kinds and sizes of work z-Below the level of the work-support- K1 are drivers l, 2, as the nail-drivers F1 principal drivers, may

which, inasmuch are regarded as the 1n the present 1nstance be termed auxiliary nail-drivers, although, as will hereinafter be made clear, the drivers l, 2 might be employed as the only nail-drivers in a machine unprovided with the principal nail-drivers F1. Only one of the plurality of auxiliary drivers l, 2, which are similar in construction and operation, will herein be particularly described, for the construction and mode of operation of its companion will thereafter be understood without the need for further description. Moreover it is within the present invention to employ only one such driver in a heel-attaching machine.

The auxiliary driver l normally occupies a position in which its upper end is retracted within a tubular guide or nozzle 3, so that the space in the nozzle between the mouth thereof, which projects above the post, and said upper end of the driver constitutes a receptacle into which an attaching nail Y is placed manually, or by mechanical means forming no part of the present invention,-

so as to rest as, shown upon the head of the driver, point upward. The upper ends 3X of the nozzles 8 extend through the pivotpin 7c which is fixed and into holes la* in the support K1, which, as aforesaid, is movable. In order that the upper ends of these nozzles may not impede the movement of the suppo-rt K1 about the pivot-pin l@ the holes 7c* are elongated by ,slightly bellmouthing them in planes transverse to the axis of the pin 7c, as shown in Figs. 3 and 5. The driver is forced rapidly upward through the guide or nozzle 3 driving the nail in the line of motion of the driver and in a direction away from the work-supporting face fr of the support K1 obliquely into the lift-s Z, Fig. 3, which rest upon it and are compressed as aforesaid between'the under-face of the die-block G and the shoe-sole. lt will be observed that the auxiliary driver l is arranged to drive a nail into a portion of the heel outside t-he lift of smallest area. The auxiliary driver 2 rises simultaneously with the auxiliary driver 1 and drives the other of the two nails Y in the same manner. As will appear from the construct-ion described, the nails driven by the auxiliary drivers are inserted simultaneously with the insertion of the nails from without the shoe. The auxiliary drivers l, 2 rest upon a driver-actuating device, which is the head or driver block t of a reciprocating plunger 5 contained within the post- K and forming part of a nail-driving mechanism whereby the drivers are reciprocated. To the lower end of this plunger is attached a plate 6 extending' toward the front of the post and provided with a tubular extension 7 sliding within a. guide 8 forming part of the post and containing a spring 9 in compression between the lower portion of the extension and a pin 11 passing through a slot 12 in the upper portion thereof and fixed in the post K. This spring 9 is for the purpose of insuring the return of the plungerl 5 to the lower limit of its travel after each driving operation. The upward movement of the plunger 5 may be effected at intervals as desired by and convenient means commonly known in the mechanic arts, for instance, by a moving member of the heel-attaching machine such as the shaft 7L which is operatively connected to and driven from the shaft B, hereinbefore referred to, by devices described in detail in the specification of Patent No. 4116885 aforesaid. By way of example one form of a mechanism whereby the said shaft h. effects the operation of the plunger 5 is hereinafter described.

In the construction of post hereinbefore described the work-support K1 is provided with an adjusting-device to set the support obliquely, and with nail-driving means, as described; that these parts are mounted on the post is a practical conv-enience in that their proper correlation is not affected by shifting a post out of one attaching machine into another, hence such a shift involves but a brief expenditure of time and does not necessitate the employment of skilled labor. The face of the die-block or abutment G against which the heel-lifts are compressed need not be horizontal. It may be sloped or shaped in any convenient manner which will cause it to afford a fair bearing to the outer lift of a heel presented to it at an angle by the work-support K1. A handle 5x projects through a slot KX to the exterior of the post from the plunger' 5; it is used to raise the plunger manually to lift the drivers far enough to enable the operator to ascertain, if in doubt, whether they have all been supplied with nails or not.

One form of operative connection between the plunger 5 of Figs. 3 and l and the shaft B of a heeling machine such as is shown in Figs. 1 and 2 can be arranged as follows (see Figs. 1 to 11) In the block H is the driver-actuating shaft h adapted to oscillate in the manner hereinbefore described. Fixed on one end of that shaft is an arm 18 connected by a link 14 to one arm 15 of a bell-crank lever 15-16 pivoted at 17 on one (17) of a pair of

studs

17, 18, by which a cover plate 19 is secured upon the face of the jack-carriage I. Behind the cover plate 19 and guided partly by a groove 20 therein and partly by another groove 21 in the face of the jaclecarriage is a slider Q2, shown in detail in Figs. 8 and 9, in which is a hardened roller 23 which has a running it in a hole therein; the lower part of the slider is partly cut away to leave a shoulder 24 through which a portion of the periphery of the said roller projects; this roller rests upon the arm 16 of the bell-crank lever 15 16, and the upper' end 25 of the slider' bears against the underside of the plate 6 which projects as aforesaid from the plunger 5 (Figs. 3 and 4). The shaft h is oscillated in the block H by mechanism which, as aforesaid, forms no partof the present invention and is operatively connected with the main driving-shaft B of the machine. When it moves in the direction of the arrow shown near it in Fig. 1, it moves, by means of the link 14;, the bell-crank lever 15 16 so that the arm 16 thereof moves upward, lifting the slider 22, which, acting against the plate 6 on the plunger 5, lifts the latter and .with it the head 4r and

auxiliary naildrivers

1, 2. Movement of the shaft h in a direction opposite to that which is indicated by the arrow near it in Fig. 1, causes the arm 16 of the bell-crank lever to move downward into the position in which it is shown in that figure, so that it lowers the slider 22 and permits the spring 9, Fig. 3, to depress the plunger 5 and cause the head 4t thereof to lower the auxiliary nail-drivers until their upper ends are retracted into the guides or nozzles 3.

The arm 15 of the bell-crank lever 15, 16, or any movable member which is the equivalent thereof, and like it is mounted upon the jacloearriage I and operatively connected with the plunger, may be connected with another member such as the arm 13, in operative connection with the shaft 7L, by a link 14 pivoted to and connecting the parts 15 and 13, and if care be taken to dispose this pivoted link at approximately a right angle to the path of motion of the 'jackcarriage, which path is vertical in the eX- ample illustrated, and approximately in the line in which the link 14 has to move in transmitting the motion of part 13 to part 15, it will be found that either no angular motion at all, or an angular motion so small as to be negligible, is imparted to the bellcrank 15 16 by reason of its movement of translation upward and downward with the jack-carriage I, but that nevertheless the movement of translation is not interfered with neither is the bell-crank 15 16 taken thereby out of a relationship to the arm 13 which is such as to permit of the instant angular movement of the bell-crank in response to angular movement of the shaft 7L, such movement taking place, moreover, through an angle which is constant or approximately so for a given angular movement of the shaft z., no matter to where the pivot 17 of the bell-crank lever may have been shifted within the limits of the small movement of translation imparted to it in the rise and fall of the ack-carriage I. The feature of this arrangement which is novel in a heel-attaching machine is that the length of stroke of the nail-drivers l, 2 or 10 imparted to them by the slider 22 and plunger 5 moving in company remains practically constant in relation to the post K and unaffected by the different amounts ot vertical adjustment received by that post for different heights of heel.

l/Vhat I claim as my invention and desire to secure by Letters Patent is l. In al heel-attaching machine, the combination with a principal nail-driver and guiding 'and actuating devices for that naildriver, of a base, a work-support adjustable upon it, auxiliary nail-driving means to drive a nail in a direction away from the work-supporting face of said support into thework supported thereby, and means for retaininglry the support in positions in which its work-supporting tace shall be in oblique relation to the path of the driver.

2; In a heel-attaching machine, the combination with an abutment, a principal naildriver, and guiding and actuating devices for-that nail-driver, of a base, a work-support adjustable upon it, auxiliary nail-driving means to drive a nail in a direction awayfrom the work-supporting taceof said supportinto the work supported thereby, and meansi''or retaining the support in positions in which its work-supporting face shall be in oblique relation to the path of the driver. v

3. In aheel-attaching machine, the combination with a principal naildriver, and guiding and actuating devices for that naildriver, of a base, a work-support adjustable upon it, auxiliary nail-driving means to drive a nail in a direction away from the work-supporting face ot said support into the work supported thereby, means for retainingv the support in positions in which its work-supporting face shall be in oblique relation to the path of the driver, an abutment, and mechanism whereby the distance between 'the abutment and work-support is varied.

4:. In a heel-attaching machine, the combination with a principal nail-driver, guiding and vvactuating devices for that nail-driver and a post, of a work-support adjustably mountedr upon the post, a nail-driving incohanism upon the post comprising an auxiliary driver to drive a nail in a direction away from the work-supporting face of said support into the 'work supported thereby, and means for retainingthe support in positions in :whiclrits worl-siippol'ting'-face shall be in oblique relation to the path of' the auxiliary' driver.

5. In a heel-attaching machine, the combination with. an abutment, a principal naildriver, guidingandactuating devices for that'nail-driver, and av post, of a work-support adjustably'inounted upon the post, naildrivingV mechanism upon the post comprising an auxiliary driver to drive a nail in a direction away from the work-supporting tace of said support into the work supported thereby, and means for retaining the support in positions in which its work-supporting face shall be in oblique relation tothe path of the auxiliary driver.

6. In a heel-attaching' machine, the combination with a principal nail-driver, guiding' and actuating devices for that nail-driver, and a post, of a work-support adjustably mounted uponA the post, nail-driving mechanism upon the post comprising `an auxiliary driver to drive a nail in a direction away from the work-supporting face ot' said support into the work supported thereby,` means for retaining the support in positions in which its work-supporting tace shall be in oblique relation to the path of the auxiliary driver, an abutment and mechanism, whereby the distance between the post and abutment is varied.

7. In a heel-attaching machine, the=combination with a principal nail-driver, guiding and actuating devices therefor, and a post, of an adjustable work-support, a tubular nozzle, an auxiliary nail-driver in the nozzle, mechanism for reciprocating the auxiliary nail-driver, and means for retaining the support in positions in which its work-supporting face shall be in oblique relation to the path of the driver.

8. In a heel-attaching machine, the combination with a principal nail-driver, guiding and actuating' devices therefor, of an adjustable wo-rk-support provided with apassage for a nail, an auxiliary nail-driver, means which o-perate it to drive a naill out of'said passage in a direction away from the worl support-ing face of said work-supportinto the work supported thereby, and means for retaining thesupport in positions in which its work-supporting` tace shall be infoblique relation to the path of the auxiliary driver.

9. In a heel-attaching machine, the combination with a post, and an adjustable worksupport, of a nozzle fixed inthe post, a naildriver in the nozzle with its upper endfretracted within said nozzle so that the space in the nozzle between the mouth thereof and i said upper end of the driver constitutes a receptacle for a nail, mechanism for reciprocating the driver, and means for retaining the support in positions in which its worksupporting-'face shall be in oblique-relation to the path of the driver.

l0. A machine for attaching heels, having in combination, means for holding a heel under pressure upon the heel seat of'a shoe., mechanism for automatically driving heel attaching nails from without the through the heel and into the vheel 4seat andy mechanism for simultaneously' drivingfheel shoe attaching nails automatically from within the shoe at the rear of the nails driven from Without.

11. In a heel-attaching machine, the combinatio-n with mechanism for driving nails Afrom without and within a boot or shoe into a heel in a direction perpendicular to its tread face, of means for holdilig the heel under pressure upon the boot or shoe in attaching position, said means being arranged for adjustment to permit heels with heel seat faces of different degrees of inclination with relation to their tread faces to be sustained in attaching position.

12. A heel attaching machine, having, in combination, means for supporting a shoe and a heel under pressure in heel-attaching position, mechanism for driving heel-attaching nails from without the shoe through the heel into the heel seat and mechanism for driving heel-attaching nails from within the shoe into a portion of the heel at the rear of the nails driven from without the shoe and in a direction inclined forwardly of the shoe.

13. A machine for attaching heels, having in combination, means for positively forcing a heel upon the heel seat of a shoe, mechanism for thereafter automatically driving heel attaching nails from without the shoe through the heel and into the heel seat and for clenching said nails upon the interior of the shoe, and mechanism for driving Heel attaching nails automatically from within the shoe at the same time that nails are driven from without the shoe.

14. A machine for operating on heels, having, in combination, a pressure resisting member, a driver block and drivers mounted for reciprccation toward and away from said pressure resisting member, a support having apertures to permit the passage of the drivers, driver-guiding tubes fixed in said support and projecting therefrom toward said pressure resisting member, and a Work engaging plate so connected with said support as to permit angular movement of the plate relatively to said projecting tubes and having apertures to receive said tubes.

15. A machine for operating on heels, having, in combination, a pressure resistlng member, a tool block and tools mounted for reciprocation toward and away from said pressure resisting member, a support, an apertured Work engaging plate having a transverse pivot at one side whereby it is connected to said support, an adjustable stop constructed and arranged to engage said work engaging plate adjacent to its other side for sustaining said plate with its work engaging face inclined with respect to the path of the tools, and toolguiding devices fixed in said support and projecting into the apertures of said work engaging plate.

1G. A machine for operating on heels, having, in combination, a pressure resisting member for engaging one side of a heel, a gang of tools located on the opposite side of the heel and mounted to reciprocate toward and away from said member, a plate having a work engaging face oblique to the path of said tools and provided with perforations in alinement with said tools, a member having rigidly set therein tool guiding devices which extend into the perforations of said plate, and adjustable means for determining the operative position of said plate.

1T. A machine for operating on heels, having, in combination, a pressure resist-ing member for engaging one side of a heel, a plate located on the opposite side of the heel and having a substantially plane workengaging face, said plate being mounted for movement toward said member to press the work against said member and arranged with its work engaging face oblique to its path of movement, a support for said plate, and a plurality of tool guiding tubes set rigidly in said support and inclined in the same general direction from normals to the work engaging face of the plate at the points at which the axes of the tubes intersect said face.

18. A machine for operating on heels, having, in combination, a pressure resisting member, a tool block and tools arranged to reciprocate toward and from said member, a supporting member, an apertured work engaging plate having a transverse pivotal connection at one side with said supporting member, and tool guiding devices fixed in said supporting member and projecting into the apert-ures of said work engaging plate.

19. A machine for operating on heels, having, in combination, a pressure resisting member, a tool block and tools arranged to reciprocate toward and from said member, a support having fixed therein tool guiding tubes projecting toward said pressure resisting member in alinement with said tools, and a work engaging plate pivotally connected with said support and provided with apertures for tubes so shaped as to permit angular movement of said plate relatively to said tubes.

20. A machine for operating on heels having, in combination, drivers, actuating mechanism for reciprocating the drivers, separate driver-guiding tubes each having a uniform internal diameter for the full length of the driver stroke and being arranged to receive the nails to be driven, a recessed plate into which the outer ends of the driver guiding tubes project, a supporting member in which the opposite ends of the tubes are rigidly set so as to occupy at all times a fixed relation, and a work engaging member oppothe reception of said guidingV sitely disposed With respect to the recessed plate, said recessed plate being arranged to of two subscribing Witnesses. move toward the opposltely disposed Work name to this specification in,y the presence ARTHUR BATES; i engaging member preliminarily to Jhe op- Vitnesses: 5 eration of the drivers. VALTER W. BALL, In testimony whereof I have signed my JOHN R. LAW.

Copies of'this patent may be obtained for ve cents each, by addressing the Commissioner of Patent Washington, D. C.