US1138948A - Heeling-machine. - Google Patents

Description

.I. E. GLIDDEN.

HEELING MACHINE. APPLICATION FILED APR. 19, 1910.

1,138,948. Patented May 11, 1915.

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J. E. GLIDDEN.

HEELING MACHINE.

APPLICATION FILED APR. 19,1910.

1,138,948, Patented May11,1915.

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J. E. GLIDDEN.

HEELING MACHINE.

APPLICATION FILED APR. 19. 1910.

1,138,948. Patented May11,1915.

3 SHEETS-SHEET 3.

1114211061965:- film .rlE NORRIS PETERS 60., PHOTO-LITHO.. WASHINGTON, D. Cv

JOHN E. GLIDDEN, OF BEVERLY, MASSACHUSETTS, ASSIGNOR TO'UNITEID SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NET/V JERSEY.

HEELING-MACHINE.

Specification of Letters Patent.

Patented May 11, 1915.

Application filed April 19, 1910. Serial No. 556,326.

To all whom it may concern:

Be it known that I, JOHN E. GLIDDEN, a citizen of the United States, residing at Beverly, in the county of Essex and State of Massachusetts, have invented certain Improvements in Heeling-Machines, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures. 1

This invention relates to machines for attaching heels to boots and shoes and more particularly to improvements in machines of this class adapted for both blind and surface nailing.

In the present application, the invention is illustrated and described as embodied in a machine of the type disclosed in U. S. Patent No. 694,656, Mar. 4, 1902, Mayo. In attaching a heel with a machine of this type, the heel is compressed during, and coincidentally with, the nail driving operation. This mode of operation has, at times, been found disadvantageous because the total pressure is not exerted upon the work until the end of the nail driving operation. During the first part of this operation, the pressure is sometimes insufficient to hold the heel firmly enough to prevent the resistance offered to the driving of the nails from causing the nails to cripple.

One object of the present invention is to obviate this difficulty, and in accordance with this object a feature of the invention comprises improved means for applying pressure to the heel preliminarily to the nail driving operation. The movement of the nailing die, to compress the heel, is made independent of the heel attaching movement of the driver block although a single actuator may be employed for controlling both movements. Preferably the nailing die and driver block have separate operating trains arranged, however, to so co-act that during the compression of the heel the normal relation of the die and block remains unaltered.

In the best construction known to the in ventor at'the present time the driver block is mounted upon a vertically moving plunger, or other suitable support, and is raised and lowered by means of a crank operating through a toggle. The nailing die is mounted in a cross-head on guides, or other supports, which are raised and lowered by means of a cam operating through a second toggle. The timing of the cam and crank is such that the cam moves the nailing die to compress the heel at about the time the crank is crossing dead center and is, therefore, substantially inoperative. To maintain the normal position of the drivers within the nailing die during the compression, the train for operating the drivers is constructed to permit the driver block to be advanced, at the speed of movement of the nailing die, during the compression. To this end the driver block actuating toggle is provided with a slot within which the plunger supporting the block may be moved through the engagement therewith of a moving part of the nailing die actuating train. This provides for an initial upward movement of the driver block by the operating train which advances the nailing die.

Heretofore, in heel attaching machines of this type when it was desired to change from surface to blind nailing it was necessary to provide the driver block with liners to limit the operative stroke of the drivers. Liners are unserviceable for the reason that with this mode of operation the amount of projection of the nails for blind nailing can be varied only in accordance with the particular thickness of the liner used and as the thickness of the liners changes with wear they soon become inaccurate.

Another object of the invention is to provide an improved construction to facilitate a change from blind to surface nailing. In accordance with this object another feature of the invention comprises means for adjusting the nailing die toward and from they driver block, to vary the projection of the drivers therein, permitting any particular amount of adjustment that may be desirable. This may be accomplished by the provision of a jack screw on which the nailing die is carried. It is preferred to use two jack screws at opposite ends of the die to distribute the strain and indicators are provided for each so that the adjustment of each may be made the same.

In the machine of the patent hereinbefore referred to, to renail a heel or a top lift that had been incorrectly attached it was necessary to run the machine idly through a single-revolution, or readjust the. walking beam toggle by the hand lever, to bring the jack to the. proper height to give the correct pressure for a repetition of the operation just.

performed incorrectly. If this was not done a false pressure would be given that would injure either the shoe or the machine.

Another object of the invention is to provide a construction wherein the heel or top lift attaching operation may be repeated at will without a separate readjustment of the machine.

A further feature of the invention, accordingly, consists in the provision of means for varying the height of the jack above the nailing die, constructed to be operated automatically without the necessity of special manipulation by the operative. With this construction, if the heel attaching nails, for example, have been crippled and it is desired immediately to attach another heel, no attention to the jack is necessary, since it will be automatically located in proper relation to the nailing die as an incident to the other operations. The construction, preferably, is such that the jack is adjusted automatically for either the heel or top lift attaching operation so that either of these operations may be repeated without a separate readjustment of the machine. The illustrated construction for moving the jack automatically preliminary to the heel. attaching or the top lift attaching operation comprises wedge mechanism which acts positively to hold the jack against the heeling pressure after it has been moved into adjusted position. As shown, the wedge is connected to the heel and top lift plate and is carried, by the movement of the latter, in and out beneath the lower end of a vertically movable bar guided in the frame and acting on the rear end of the walking beam which carries the ack at its front end. The bar is provided with an adjustable stop by means of which the height to which the jack is permitted to lift is varied in accordance with the thickness of the top lift to be attached.

Other features of the invention relate to an improved last spindle for holding shoes on the jack when nailing on wooden lasts, and to certain devices, combinations and arrangements of parts, hereinafter described and claimed, which possess advantages in simplicity of construction and ease of operation which will be apparent to those skilled in the art.

The preferred embodiment of the invention is illustrated in the accompanying drawings, in which Figure 1 is a side elevation of the machine with some parts broken away to illustrate details of construction; Fig. 2 is a front elevation of the lower part of the machine with some parts broken away to show details of construction; Fig. 3 is a horizontal section on the line 33 of Fig. 1; Fig. 4 is a detail, in perspective, of the pressure indicator;

and Fig. 5 is a detail of the end of the jack when used for nailing on wood lasts.

In the embodiment of the invention illustrated in the drawings, the frame 2 supports at its upper end a walking beam 4 having at its forward end a universal joint 5, to which is adjustably connected a plunger or spindle 6 guided in the frame at 7 and adjusted by means of a hand wheel 8. To the lower end of the plunger is attached a support 9 for a jack 10. The jack support is provided with a pointer 11 cooperating with the scale 12 (see Fig. 4), the purpose of which will be explained in connection with the description of the operation of the machine. A spring 13 attached to the machine frame engages the walking beam 4 and acts to normally maintain the jack in its elevated position. All ofthese parts may be, and preferably are, 7 substantially as shown in the patent to Mayo hereinbefore referred to. The machine is provided with any of the well known forms of band clamp for the counter of the shoe, indicated generally at 14 (Fig. 1).

The driving shaft 16 (Fig. 1), continuously driven by means of a belt running over a pulley 18 at one end of the shaft, is at the rear ournaled in the lower part of the frame. Centrally of the driving shaft there is provided a crank 20 which is connected by means of a pitman 22 to the knuckle of a toggle 24 (Fig. 2) at the front of the machine. The lower arm of the toggle 24 is pivoted upon a pin 26 carried by a support 28 (Fig. 2). The support is provided with a depending cylindrical portion 29 fitted within a socket formed therefor in the frame and is permitted a setting-up adjustment both vertically and angularly by means of screws 30 and 31 (Fig. 2) respectively. The

upper arm of the toggle 2431s pivotally connected by a pin 25 (dotted lines Fig. 2) to the lower end of a plunger or spindle 32 which extends upwardly through guides 33 and 34 at the front of the frame and carries at its upper end a table upon which is mounted a driver block 36 having removably fitted therein a driver plate 37 carrying a gang of drivers. 38. The parts just described all may be, and preferably are, substantially the same as in the patent to Glidden & Elliott hereinbefore referred to.

A multiple nailing die 40, which receives the ends of the drivers, is removably secured, as usual, above the driver block in a crosshead 42. The cross-head is adjustably sup ported at its ends upon a pair of guide rods 44. These rods extend through ears 39 upon the driver block, through the guide 33 and are seated at their lower ends in a second cross-head 46 which is pivotally connected by pins 47 to the upper arms of a second toggle 48 formed in two parts and arranged at the sides of the toggle 24. The lower arms of the double toggle 48 are pivotally mounted upon the ends of the pin 26 in the support 28. To the lower arms of the double toggle 48 there is connected the forked end of a rearwardly extending yoke bar 50 (Fig. 1), supported upon the upper end of a link 51 mounted on the frame, which embraces Within its yoke a cam 52 mounted upon the driving shaft, the yoke carrying diametrically disposed cam rolls 54 which bear continuously and simultaneously upon the surface of the cam. A coiled spring 56 is connected at one end to the frame and at its other to the yoke bar and acts in a direction to assist the cam 52 to raise the nailing die. 7

The operation of this part of the mechanism is as follows. The operative adjusts the jack by means of the hand wheel 8 until the pointer 11 indicates upon the scale 12 the height of heel whichis to be operated upon, the scale being so mounted on the frame that when the pointer is thus adjusted a pressure suitable for this height of heel is used. A shoe is then placed upon the jack and it is pushed into the band clamp 14 against the pressure of the spring pressed plunger 58 which acts to normally keep the jack in the position shown in Fig. 1. The machine is then set in operation, by means of an actuator hereinafter described, and the cam 52 immediately operates through its train of mechanism to straighten the double toggle 48 and lift the cross-head 46 which in turn lifts the guides 44 and nailing die 40. The nailing die meets and gives a positive compression to the heel, which has previously been placed in position, and thereafter the crank 20 operates through its train of mechanism to straighten the toggle 24 which advances the driver block and attaches the heel to the shoe by driving the gang of nails in the nailing die through the heel.

The timing of the machine, permittin the compression of the heel to be complete before the nails are driven, is obtained in the following manner. The risers on the cam 52, which operate to straighten the toggle 48, are so placed that this toggle is straightened at or about the time that the crank 20 is crossing dead center, as shown in Fig. 1. The nailing die will, therefore, be advanced to compress the heel at a time when the driver block is substantially stationary. If, however, the driver block were allowed to remain stationary, the advance of the nailing die would alter the normal relation of the block and die. The die would be withdrawn from the ends of the drivers and difficulty would be encountered in causing the drivers to again enter the nail holes in the nailing die when the block was thereafter advanced to drive the nails. Furthermore, under these conditions the nails might drop out of the die. To overcome these difficulties the upper arms of the toggle 24 are provided with slots 60 (see dotted lines Figs. 1 and 2) within which the pin 25 may move, and the lower end of the plunger 32 is cut away so as to form a shoulder 62 (Fig. l), which is engaged on the upward movement of the nailing die by a set screw 64 carried by the lower cross-head 46. WVith this construction the cam 52 for operating the nailing die not only advances the nailing die but, through the interconnection of the crank and cam trains of mechanism by reason of the engagement of the set screw 64 with the shoulder 62, also advances the driver block relatively to the toggle 24 which movement is permitted by a movement of the pin 25 within the slots 60- of said toggle. The speed of movement of the block and die is, of course, the same and the normal relation of the two parts is, therefore, maintained during the compression of the heel. By the time the compression is completed by the nailing die, the crank 20 has passed dead 7 center and the straightening of the toggle 24 begins to raise the plunger 32 carrying the driver block and this movement is continued imtil the nails are driven. While the cam constitutes means for advancing die and block simultaneously, the crank constitutes additional means to advance the block after the die comes to rest.

The driving shaft 16 is provided with the well known type of one-revolution Horton clutch indicated generally at 66 (Fig. 2), the controlling lever 68 being operated by means of a treadle 70, all substantially as shown in the patent to Glidden & Elliott hereinbefore referred to. It is thus seen that although separate trains of mechanism are employed for operating the nailing die and driver block, still their operation is controlled by a single actuator. The driving shaft is also provided with a brake wheel 72 (Fig. 2) acted upon by a brake lever 74 (Fig. 1) arranged and operated in a manner substantially similar to the wheel and lever shown in said patent.

The purpose of the adjustable connection of' the nailing die to its guide rods'44 will now be explained. In blind nailing, as is well known to those skilled in the art, the distance between the driver plate and nailing die is such that at the completion of the stroke of the driver block the ends of the drivers are still a short distance from the face of the nailing die. In surface nailing, however, the stroke of the driver should be such that at its completion the ends of the drivers are flush with the face of the nailing die. In order to permit an adjustment of the distance between the driver block and nailing die and thus provide for both blind and surface nailing in the same machine, the nailing die cross-head 42 is mounted upon jack screws 76 (Fig. 2) threaded upon the upper ends of the guide rods t-i. The heads of these jack screws project through the cross-head and have secured thereto pointers 78 (Fig. 3) which are held from movement relative to the jack screws by pins 7 9 and cooperate with stationary scales 80 on the cross-head. The guide rods at are held from rotary movement by means of set screws 82 (Figs. 1 and 2) threaded therein which move in slotted ways 83 formed at the ends of the guide 33. By turning the jack screws 7 6 the cross-head 42 is moved toward or from the nail block 36 and the pointers serve to indicate when the adjustment at each end of the cross-head is the same so that the face of the nailing die may be kept horizontal. The jack screws are locked in any position of adjustment by means of thumb nuts 86 (Figs. 2 and Referring now to Fig. 3, the machine is provided with a heel and top lift plate 88 pivoted at 89 at the upper side of the crosshead 42. It is also provided with a nail loader 90 pivoted on the frame at 91 and movable by the operative by means of a handle 92. The nail loader is supplied with successive gangs of nails by means of a nail assorting mechanism indicated generally by 94 (Fig. 1), the nails passing through tubes 95 to a station just above the nail loader from which they are delivered when the loader is in its outward position, as shown in Figs. 1 and 3. The heel and top lift plate 88 is normally held turned about its pivot 89 with the top lift holder 95 in operative position by means of a coiled spring 98 (Fig. 3), connected at one end to the heel and top lift plate and at its other end to the frame of the machine. 'When the nail loader 90 is moved forward to deliver its gang of nails to the nailing die, a cam or bunter 99 (Fig. 3) engages the heel and top lift plate and turns it about its pivot against the force of the spring 98 until the heel holder 100 is moved to operative position and the plate is then looked in this position by means of a latch 101, the nail loader being returned to its outward position. The upward movement of the driver block in attaching the heel causes a release of the latch 101 and permits the spring 98 to turn the heel and top lift plate about its pivot and automatically place the top lift holder in operative position. A dash pot 102 is provided to cushion the return movement of the heel and top lift plate. All of these parts just referred to, or their equivalents, with the exception of the dash pot, may be and are substantially the same as in the patent to Mayo hereinbefore referred to.

For reasons well known to those skilled in the art, it is desirable to place the same pressure upon the shoe in attaching the top lift as is used when attaching the heel. For this purpose, in the present machine, as in the machines of the prior patents hereinbefore referred to, the jack 10 is permitted to be moved upward by the spring 13 a distance equal to the thickness of the top lift prior to the top lift attaching operation. The mechanism herein provided to gain this end, comprises a housing 103 (Figs. 1 and 3) at the rear of the frame which forms a guideway for wedge 104 connected by a link 105 to the heel and top lift plate. This wedge operates beneath the end of a rod 106 pivoted at its upper end to the rear end of the walking beam 4 and guided at its lower end in an aperture formed in the upper side of the housing 103. With this construction when the nail loader 90 is moved forward by the operative to deposit a gang of nails to the nailing die, thereby turning the heel and top lift plate to the right (Fig. 3) about its pivot, the connection'of the plate, to the wedge through the link 105 draws the wedge forward beneath the lower end of the rod and tilts the walking beam in a manner to lower the ack 10 to a point at such a distance from the nailing die to provide for the desired compression of the heel. After the heel has been attached the automatic angular movement of the heel and top lift plate to place the top lift holder in operative position acts upon the wedge through the link 105 to move the wedge rearwardly and permit the spring 13 to tilt the walking beam in a direction to raise the jack. The point to which the jack is raised is determined by means of an adjustable stop formed by a nut 107 threaded on the lower end of the rod 106 and locked in adjusted position by a jam nut 108. The position of the nut 107 on the rod 106 determines the eXtent of its downward movement and, therefore, the extent of the upward movement of the jack. The wedge 10 i is moved by the heel and top lift plate a sufficient distance to the rear to withdraw it fromengagement with the lower end of the rod 106. Thus, when the top lift is attached, a firm bearing is provided by the transmission of the pressure through the walking beam 4 and rod 106 directly to the frame. The nut 107 may be independently adjusted to accord with the thickness of the top lift to be used.

By means of the construction just described for varying the height of the jack for the heel and top lift attaching operations, it will be apparent that either operation may be repeated at will, if either is unsuccessful, without a separate adjustment of the machine to'obtain the proper compression for the repeated operation. If, in blind nailing, the nails in the heels have crippled and it is desired to immediately repeat the heel attaching operation, although the height of the jack has just been automatically altered by the shifting of the heel and top lift plate, the movement of the nail loader by the operative, to deliver a new gang of nails to the nailing die, draws the wedge 10 1 forward and causes the jack to be repositioned for the heel attaching operation. If a top lift has been incorrectly applied to the heel this operation may be immediately repeatedbecause, at the completion of the top lift attaching operation, the position of the wedge remains unchanged and, therefore, the height of the jack is unaltered. The change in height of the jack from top lift to heel position can be obtained only by the movement of the nail loader by the operative.

The operation of the machine will be sufficiently understood from the foregoing description. It need only be said here that the treadle is ordinarily depressed twice, once for the heel and once for the top lift although if desired the operative may keep his foot on the treadle until after the top lift attaching operation has been started.

Referring now to Fig. 5, when it is desired to nail shoes upon wood lasts the jack 10 is provided at its lower end with a last plate 109 having a heel spindle 110, provided with diametrically arranged axial slots connected by a diametrical' slot across the lower end of the spindle, and seated within these slots.

is a horseshoe-amped spring 111, the arms of which normally project beyond the surface of the spindle. \Vhen nailing upon a wood last, the heel socket 112 of the last is placed over the heel spindle 110 and the yielding arms of the spring 111 serve to frictionally engage the walls of the socket and hold the last upon the jack which,

otherwise, owing to the fact that the shoe is placed in the machine sole down, would fall off as the jack is being moved into operative position unless held by the operative.

In interpreting the following claims, the term heel is to be understood as including within its meaning either a heel or a top lift, or both of these articles, except where the context prohibits such an interpretation. All references to position or direction of movement of the parts in the claims are to be interpreted as terms of designation and not of limitation, as chviously it is the relative position, or relative direction of movement, which is alone of importance.

Nothing herein contained is to be interpreted as limiting this invention in the scope of its application to use in connection with the particular type of machine selected for purposes of illustration and explanation, for while it is preferred to employ the specific construction and arrangement of the parts shown and described since this construction and arrangement is the simplest and most efficient embodying the invention which has yet been devised, it will be understood that this construction and arrangement is not essential except so far as it is specified in the claims and may be varied or modified without departing from the broader features of the invention.

What is claimed as new, is

1. In a heel attaching machine, the combination of a nailing die, a jack adjustable relatively to the die into different heel and top lift'attaching positions, and means for eflecting such adjustments automatically constructed to permit the repetition of one of the attaching operations without manipulation by the operative.

2. In a heel attaching machine, the combi nation ofa shoe support, a nailing die, a driver block, a toggle for actuating said die to cause compression of the work, means connected to said toggle for actuating the same, an independent toggle for actuating the driver block and separate mechanism for actuating the last named toggle, said means and said mechanism being timed to act successively in the order stated.

3. In a heel attaching machine, the combination of a shoe support, a nailing'die, a driver block, a toggle for actuating'said die to cause compression of the work, means connected to said toggle for actuating the same, an independent toggle for actuating the driver block andseparate mechanism for actuating the last named toggle, said means and said mechanism being timed to act successively in the order stated, and a single controlling device for said means and mechanism.

4. In a heel attaching machine, the combination of nailing mechanism including Yupwardly movable drivers, a downwardly extending work support located above said nailing mechanism, and means upon said work support for engaging frictionally a last and holding the last suspended upon the work support.

5. In a heel attaching machine, the combination of upwardly acting nailing mechanism, a downwardly extending work support located above said nailing mechanism, and expansible spring means upon said work support for entering the socket of a last and holding said last suspended upon the V 8. A heel attaching machine, having, in combination, a shoe support, a suitably supported nailing die, a suitably supported driver block, toggles for advancing said die and block toward the shoe support connected to their respective supports, the driver block toggle having a slot in one of its ends, and means controlled by the advance of the die support for advancing the block support within the toggle slot and relatively to its toggle, substantially as described.

9. A heel attaching machine, having, in combination, a driver. block sustaining a driver plate and drivers, a movable nailing die into which the drivers penetrate, means for adjusting the die to vary the penetration of the drivers within the die, and means for indicating the amount of such adjustment, substantially as described.

10. A heel attaching machine, having, in combination, a driver block sustaining a driver plate and drivers, a nailing die into which the drivers penetrate supported on jack screws at opposite ends, an adjustment of said screws varying the penetration of the drivers within the die, pointers movable with the heads of said screws, and scales with which said pointerscoiiperate to indicate the amount of adjustment, substantially as described.

11. In a heel attaching machine, the com-' bination of upwardly acting nailing mecha nism, a depending work support and means for detachablyholding a wood last suspended upon the work support when the work is out of engagement with the nailing mechanism.

12. A heel attaching machine, having, in combination, a nailing die, a j aok adjustable to different positions relative to the die, for the heel and top lift operations, machine controlled means for obtaining the latter adjustment, and operative controlled means only for obtaining the former adjustment,

whereby the jack remains in its top lift position after the. top lift operation is completed, substantially as described.

13. A heel attaching machine, having, in combination, a nailing die,a movable nail loader, a jack, means for automatically adjusting the jack forthe top lift operation after the heel operation, and means con trolled by the movement'of the nail loader toward the die to readjust the jack for another heel operation, substantially as described.

14. A heel attaching machine, having, in combination, a nailing die, a jack, a jack adjusting device, a movable work holding plate, connections between said adjusting device and plate by virtue of which the jack is adjusted in accordance with the position of the plate relative to the die, and means for moving the plate, substantially as described.

15. A heel attaching machine, having, in combination, a nailing die, a jack, a jack adjusting device, a heel and top lift plate, automatic means to move the plate relative to the die for the top lift operation, manually controllable means to move the plate relative to the die for the heel operation, and means connecting the adjusting device to said plate, substantially as described.

16. In a heel attaching machine, the combination of a nailing die, a jack adjustable relatively to the die into different heel and top lift attaching positions, and means for effecting such adjustments automatically, constructed to permit the repetition of either of the attaching operations without a separate readjustment of the machine by the operative. v

17. In a heel attaching machine, the combination of a nailing die, a jack, a wedge, means for actuating the wedge automatically to move the jack into heel attaching position, means for moving the nailing die toward the jack to compress the work, and means for driving the heel attaching nails.

18. In a heel attaching machine,the combination of a. nailing die, a jack movable toward the die to heel attaching position, wedge means for moving the jack automatically into said position, means for positively moving the nailing die toward the jack to exert pressure upon the heel and means for driving attaching nails into the heel. 1

In testimony whereof I have signed my name to this specification inthe presence of two subscribing witnesses.

JOHN E. GLIDDEN.

lVitnesses HERBERT WV. KENWAY, JAMEs R. HonDER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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