US1030847A - Assembling and heel-seat-lasting machine. - Google Patents

Description

C. S. NORDEN.

ASSEMBLING AND HEEL SEAT LASTING MACHINE.

APPLICATION FILED MAR.18, 1911.

Patented June 25, 1912.

CARL S. NOB/DEN, F WAKEFIELD, MASSACHUSETTS, ASSIGNOB TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

ASSEMBLING AND HEEL-SEAT-LASTING MACHINE.

mesa.

To all whom it may concern;

Be it known that I, CARL S. NoRDnN, a citizen of the United States, residing at lVakefield, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Assembling and Heel- Seat-Lasting Machines, of which thefollowing description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to machines for use in the manufacture of shoes and is embodied in a machine to be employed for assembling shoes and lasting heel seats thereon, the same being-particularly adapted for use in making shoes for which the labor cost must be relatively low such, for example, as slippers and low priced shoes.

A feature of the invention consists in combinations including an assembling spindle for holding the last while the several parts of a shoe are properly arranged thereon and capable of movement to carry the assembled shoe into operative relation to a heel clamp and into operative relation to novel heel lasting and tacking apparatus with which the spindle thereafter cooperates.

Novel features of the invention are also to be recognized in the heel clamping and holding mechanism; in the arrangement of the wipers and their actuating mechanism; in the gang tacking mechanism; in the arrangement for loading the tacker; in the automatic operation of the tacker and the spin dle for inserting the tacks and flattening the heel seat of the shoe; and in the provision for operating the several power driven mechanisms in suitable time relation and stopping the machine at a suitable time to permit inspection of the shoe before the nailing is effected.

The several features of the invention will appear more fully from the following description of the illustrated embodiment of the invention and will then be pointed out in the claims.

Figure 1 of the drawings is a perspective view illustrating a machine of the class described embodying my invent-ion; Fig. 2 shows the heel wipers and the heel clamp closed over the shoe and the gang tacker in Specification of Letters Patent.

Application filed March 18, 1911.

Patented June 25, 1912.

Serial No- 615,414.

position for loading; Fig. 3 shows a'device for use in loading magnetized drivers of the gang tacker; Fig. 4. is a vertical transverse section showing the shoe being tacked and having its heel seat flattened.

The frame 2 of the machine is shown as formed to stand on a bench, although it may be made with a base, and it has a guideway for a shoe carrier which includes a slide 4 having an assembling spindle on which the last may be applied and the upper materials and innersole assembled while the slide is drawn forwardly. The slide is then forced backwardly into position for the foot 6 of the spindle to engage the wedge face of lever S by which the spindle and thereby the shoe is elevated against spring 9 in inverse proportion to the size of the shoe, the backward movement being limited by endwise engagement of the shoe with the heel clasp 1O sooner or later according to the size of the shoe.

The lever 8 is fulcrumed at the lower side of the frame and at its rear end is acted upon by a spring plunger 12 which is guided in the frame and has on its upper end a roll for engagement with a cam let on the cam shaft 15. This cam shaft which has hearing in the frame is driven from a pulley 16 through a clutch, later described, and has a cam block 18 with opposed wedge surfaces located between the tail arms 20 of the heel clasp 10. These arms are pivoted at 22 and their depending flanges-have formed inner faces which embrace the lining or band of usual material. 7

Upon the top faces of the arms :20, over the band 10, are mounted the heel embracing wipers 25 of usual construction having pin 26 and oblique slot connections with the arms. One of the wipers has a height gage 24 under which the end of the heel seat of the shoe is positioned when the slide 4 and spindle 5 are pushed back into the machine. The wipers have at 28 a pin and slot actuating connection with the foot of an arm of a rock shaft '30 that is ournaled in the upright wings of the frame in front of cam shaft and has an operating handle 32 by which the wipers can be advanced and retracted repeatedly over the shoe heel seat to lay the upper materials into position to be tacked while the heel of the shoe is tightly clamped in the band 10, and then can be partially backed oif as in-Figs. 2 and 4 for permit-ting the operation of the tacker.

The gang tacker comprises a reciprocating cross head 35 movable in vertical guides 36 on the frame, Fig. 2, and having rack teeth on the rear face in engagement with the segment toothed front endof tacker lever 38 which is fulcrumed at 39 and at its rear end has a rollthat is held by a spring 40 in contact wit-h the edge of cam block 18. The nail block 44 has a shank 45 that fits in a vertical channel in the front face of the cross head. The headed stem 46 attaches the nail block to the shank but permits it to yield upwardly against a spring 48, the head of the stem being countersunk in the nail block as shown in Fig. 4. The driver head 50 is clamped to the lower face of shank 45 by the reduced threaded upper end of the stem and is directly engaged by the crosshead 35 for applying the tack driving force. The spring 48 maintains the drivers 52 normally withdrawn slightly into the nail block. The drivers are magnetized to enable them to support the tacks by their heads. The shank 45 is pivotally connected at 55 to the cross head 35 to permit it to be turned up into the position shown in Fig. 2 to facilitate placing the tacks upon the drivers. A spring pin 56 frictionally retains the cross head in its operative position.

For applying the tacks to the magnetized drivers in the nail block a paddle 60 is provided with a rib 61 of felt or other suitable material having the horseshoe contour of the driver pattern. A shallow tack box 62 is supported on a table at the right of the machine and reciprocated by a lever 64 extending into the path of ratchet teeth on a disk 65 on the cam shaft, a spring 66 being arranged to snap the box back sharply as each ratchet tooth passes the lever. This operation shakes up the tacks and causes many of them to arrange themselves on their heads so that they can be readily impaled on the rib 61 when the paddle is pressed down upon them. The paddle thus supplied with a quantity, of tacks is presented to the nail block and each driver by its magnetism attracts to itself a tack which can be adjusted by the operator if necessary into exact position for driving. The ends of the drivers being withdrawn slightly into the nail block enables the tacks to be supported and guided by the walls of the driver passages. The box 62 has a bracket 67 for holding the paddle.

V The clutch shown includes the friction. disk 70 fast on shaft 15 and disk 71, the hub of which has a sliding connection by pins 72 with the hub of the pulley 16. Each of the hubs is slightly beveled on its ends to present a taper groove 7 4 between them. A clutch controller comprises a lever 75 the upper arm of which is forked and each branch carries a'thin edged wedge roll 76 adapted to be pressed into the taper groove 74 between the hubs and force the disk 71 into driving contact with the disk 70 to turn the cam shaft. The disk 71 carries a throwout block 7 7 which at the end of onehalf revolution of the cam shaft will engage the fork of the control lever carrying the wedge roll 76 that is operative and moves it out of the groove 74, the hubs being flattened at the throwout point adjacent to the block 77. A friction pin 78 engaging the lower end of the control lever pre vents loose movement of it and an operating rod with handle 80 provides for rocking the lever to throw into engagement with the groove 74 the wedge wheel on the side opposite to that at which the throwout block 77 is at the time located.

In the operation of the machine the last is applied to the spindle 5 and the slide is drawn forwardly to give clearance for arranging the parts of the shoe upon the last without interference with the lasting and tacking devices.v When the shoe has been thus prepared for the operation of the machine. movement of the slide carries it backwardly in a right line between the jaws of the clamp or band 10. The shoe and the slide are moved rearwardly until the rear end of the shoe is firmly pressed against the band and under the height gage 24, the spring 9 yielding topermit this latter positioning. The machine is then started by movement of the handle 80 connected with the clutch controller 75 which throws one of the wedge wheels 76 into the groove 74 for forcing the friction disk 71 into driving contact with the disk 70. During the half-revolution of the cam shaft 15 before the throwout block 77 forces the wedge roll out of the groove 74 the wedges on the cam block 18 are forced between the tail arms 20 of the heel clamp and actuate the clamp to embrace tightly the heel portion of the shoe and hold the upper and counter firmly clamped against the side faces of the last at the edge of the heel seat. The same movement advances the wipers up to the edge of the shoe. After the machine comes to rest the operator manipulates the handle 32 to actuate the wipers for laying the upper over upon the heel seat in position to be tacked and finally backing the wipers partially off to uncover the tacking line. While the machine is still at rest the gang ta'cker, while occupying the position shown in Fig. 2 is supplied with a complement of tacks from the paddle 60 which picks up the tacks from the tack box 62 in which a quantity f acks have become arranged with their points up by reason of the vibration of the tack box by its lever 64. The nail block with the tacks held on the magnetized drivers, as shown in Fig. 2, is then turned down into its operative position, Figs. 1 and 4, and the machine again started. During this portion of the cycle the tacks are driven by the operation of the lever 38 on the driver head 50 and the nail block is forced down yieldingly by its spring 48, Fig. 4:. At the same time that the tacks are being driven, or at the end of the tack driving operation, the spindle 5 is lifted by the action of cam 14 on the spindle supporting lever 8. This compresses and flattens the upper materials upon the heel seat to prepare this portion of the shoe for the reception of the outer sole. It will be noted that the face of the lever 8 upon which the spindle rests is inclined upwardly and backwardly to compensate for differences in size of shoes, it being understood that the thickness or height of the shoe varies substantially in proportion to variation in the length of the shoe from the heel pin hole to its rear face. The elevation of this spindle and the shoe by lever 8 forces all the tacks evenly into the heel seat and clenches them upon the anvil plate of the last so that no subsequent pounding down is required as is usual for the purpose of forcing down the tacks that are irregularly driven where inserted one at a time. Vhile the final tack inserting and clenching pressure of the unyielding drivers is being effected the nail block is compressing and flattening the upper material. The nail block may rest upon the wipers to form a pressure resisting abutment for them as shown in Fig. 4 when the lever 8 raises the shoe, or the nail block may be small enough to fit inside the wipers. The shoe comes from the machine with its heel portion fully ready for the reception of the outer sole. hen the tack driving and upper flattening pressure has been relieved the heel clamp releases the shoe and an arm 88 on the cam shaft engages a thrust rod 89 connected with slide 4- and pushes the slide and the shoe out of the machine into position for the shoe to be removed and another shoe applied to the assembling spindle.

Having explained the nature of the invention and described a preferred construction embodying the same, I claim as new and desire to secure by Letters Patent of the United States:

1. An assembling and heel seat lasting machine having, in combination, an assembling spindle, lasting and tacking devices, a slide by which the spindle with the shoe thereon can be moved backwardly into operative relation to said devices, and means for raising the spindle and shoe in proportion to the distance which the shoe is moved backwardly to compensate for differences in the sizes of shoes.

2. An assembling and heel seat lasting machine having, in combination, an assembling spindle, lasting and tacking devices, means for limiting backward movement and gaging the height for the shoe, a slide in which the spindle is movable endwise and which, with the spindle, is movable to carry the assembled shoe backwardly against the stop and under the height gage, and an inclined support for the spindle formed to lift the spindle toward the height gage in proportion to the backward movement of the shoe.

3. An assembling and heel seat lasting machine having, in combination, an assembling spindle, lasting and tacking devices,

, said lasting devices comprising a clasp having a heel embracing band, levers supporting said band and having tail. arms and a double wedged cam adapted to be forced between said arms for effecting clamping of the upper materials to the side faces of the last around the edge of the heel seat.

4. An assembling and heel seat lasting machine having, in combination, an assembling spindle, lasting and tacking devices, said lasting devices comprising levers having depending flanges provided with formed inner faces to embrace the heel portion of the shoe, wipers supported on the top faces of said levers, and actuating means for said levers and wipers.

5. An assembling and heel seat lasting machine having, in combination, an assembling spindle, lasting and tacking devices, said lasting devices comprising the heel clasp levers 20, having formed inner faces and laterally extending upper faces, the band 10 lining the inner faces of the levers and formed to embrace the heel portion of the last, the wipers 25 having a pin and slot connection with the top faces of the levers, means for actuating the levers to effect clamping of the upper materials against the side faces of the last at the edge of the heel seat, and means for actuating the Wipers to force the upper over upon the last bottom from the edge of the heel seat inwardly.

G. A machine of the class described having, in combination, the heel clamp levers 20 having an angular formation to present inner shaped faces opposed to the side faces of the last, the top wiper supporting faces parallel with the bottom of the last, wipers 25 mounted on said upper faces, and devices for actuating the levers and the wipers to last a heel seat.

7 A machine of the class described having, in combination, heel embracing levers, means for actuating said levers, heel embracing wipers mounted on said levers and movable therewith, and means for imparting to the wipers additional movements for forcing the upper inwardly over the edge of the last bottom.

8. A machine of the class described having, in combination, a heel clasp, wipers, means for supporting the wipers, a rock shaft having pin and slot connections with the wipers, and a hand lever for turning the rock shaft to actuate the wipers.

9. A machine of the class described having, in combination, a heel clasp, wipers 25 having pin 26 and inclined slot guides, a rock shaft 30 having an arm provided with a pin 28 and slot connection with the wipers, and the lever 32 for actuating the rock shaft.

10. A machine of the class described having, in combination, a shoe support, a heel band, levers supporting the heel band and having tail arms and a double faced wedge cam 18 arranged for movement between the tail arms to close the band of the shoe.

11. A machine of the class described having, in combination, a heel embracing wiper, power mechanism for closing the band and initially moving the wipers and separate manually actuated means for operating the wipers to lay the upper into lasted position.

12. A machine of the class described having, in combination, a heel embracing band, wipers, means operating in time relation to close the band and initially move the Wipers, said machine having provision for additional manual actuation of the wipers while the band is closed, gang tacking and heel seat flattening devices, and means for operating said devices in time relation.

13. A machine of the class described having, in combination, a heel clasp, heel wipers, power mechanism for closing the clasp, said mechanism being arranged to come to rest with the heel clamped, means for actuating the wipers to do their work, and a tacker and connections from the tacker to the power mechanism to effect fastening of the lasted upper when the machine is restarted.

14. A machine of the class described, having in combination, a heel clasp, heel wipers, power mechanism for closing the clasp, said mechanism being arranged to come to rest with the heel clamped, means for actuating the wipers to last the upper over the heel seat of the shoe, a gang tacker arranged to be positioned over the lasted heel seat while the machine is at rest, and power means for actuating the tacker to do its work.

15. A machine of the class described having, in combination, heel seat lasting means including heel embracing wipers and means for actuating them, a gang tacker arranged to be positioned manually over the lasted heel seat, and mechanism for actuating said tacker to fasten the upper.

16. A machine of theclass described having, in combination, heel seat lasting means, a nail block having a heel seat' flattening face, a gang of drivers operating through said nail block, and means for actuating said drivers to do their work and for forcing the nail block toward the shoe to flatten the heel seat.

17. A machine of the class described having, in combination, heel seat lasting means, a nail block having a heel seat flattening face, a gang of drivers operating through said nail block, and means for actuating said drivers to do their work, and additional means for effecting relative movement of the nail block and the last to flatten the upper material upon the heel seat.

18. A machine of the class described having, in combination, heel seat lasting means, a gang tacker, an actuator with which said tacker is permanently connected and upon which the tacker is movable away from operative position to facilitate the lasting of the heel seat and adapted to bepositioned manually in operative relation to the shoe and power mechanism for actuating the tacker to fasten the upper.

19. A machine of the class described having, in combination, heel seat lasting means for working the upper over a last bottom and holding it in position to be fastened, a gang tacker, an actuator with which said tacker is permanently connected and upon which the tacker is angularly movable from tacking relation to the shoe into a loading position remote from the shoe, -and power mechanism for operating. the tacker to fasten the upper.

20. A machine of the class described having, in combination, heel seat lasting means for working the upper over a last bottom and holding it in position to be fastened, a gang tacker comprising a nail block and magnetized drivers and movable angularly from a tack driving position in which the nail block is faced toward the shoe into a position in which the nail block is exposed for the presentation of tacks to the drivers, and mechanism for actuating the drivers to insert the tacks.

21. A machine of the class described having, in combination, heel seat lasting means for working the upper over a last bottom and holding it in position to be fastened, a gang heel tacker comprising a reciprocating cross head, a nail block and magnetized drivers operating therethrough, said block and drivers being connected to the cross head to permit movement from tack driving position into a position in' which the driver ends are. exposed for the application of tacks thereto, means for arranging tacks, and a device adapted for manual actuation to transfer the tacks to the magnetized drivers.

22. A machine of the class described having, in combination, heel seat lasting means for working the upper over a last bottom and holding it in position to be fastened, a gang heel tacker comprising a reciprocating cross head, a nail block pivoted on the cross head to swing upwardly into nail loading position and arranged to be directly engaged by the cross head for applyingthe tack drlving force substantially as described when it is turned down, and means for reciprocating the cross head.

23. A machine of the class described having, in combination, heel seat lasting means, heel seat tacking means, actuating mechanism arranged to stop the machine before the operation of the tacking means, and means to force the shoe automatically out of the machine after the heel seat has been tacked.

24:. A machine of the class described having, in combination, shoe clamping means, heel seat lasting means, heel seat gang tacking means, power operating mechanism arranged to cause a rest in the machines operation between the clamping and the tack ing operations and to eject the shoe after it has been tacked and unclamped.

25. A machine of the class described having, in combination, means for holding and clamping a last and upper in position to be lasted, means for lasting the upper, means for tacking the lasted upper, and power operating mechanism for the clamping means arranged to stop the machine before the tacking operation.

26. A machine of the class described having, in combination, means for holding and clamping a last and upper in position to be lasted, means for lasting the upper, means for tacking the lasted upper, and power op erating mechanism for the clamping and the tacking means arranged to stop the ma chine between the clamping and the tacking operations.

27. A machine of the class described having, in combination, means for holding and clamping a last and upper in position to be lasted, means for lasting the upper, means for tacking the lasted upper, and power operating mechanism for the clamping and the tacking means arranged to stop the machine after the shoe is clamped and to eject the shoe after the shoe is unclamped.

28. A machine of the class described having, in combination, a shoe support, a heel embracing wipers, means for actuating the wipers, means for lifting the shoe against the wipers, and means movable after the over-wiping operations into position for engaging the wipers from above to resist displacement of them by the upward pressure of the shoe against them.

29. A machine of the class described having, in combination, a shoe support, heel embracing wipers, means for actuating the wipers, means for engaging the wipers from above after the overwiping operation, and means for relatively actuating said engaging means and the shoe support to efi'ect compression of the shoe stock on the heel seat of the last.

30. A machine of the class described having, in combination, a shoe support, heel embracing wipers, means for actuating the wipers, means for engaging the wipers from above after the overwiping operation, and means forcing said engaging means down wardly to elfect compression of the upper materials through the wipers.

31. A machine of the class described having, in combination, a shoe support, heel embracing wipers, means for actuating the wipers, a nail block formed to engage upon the top face of the wipers and having nail drivers arranged to operate within the wiper edges, and means for applying force to effect insertion of tacks by the drivers and compression of the upper stock by the wipers and nail block.

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

CARL S. NORDEN.

Witnesses:

ADIN M. PERKINS, JAs. BLACK.

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

Images