US1006652A - Tack-pulling machine. - Google Patents

Description

J. B. HADAWAY. TACK PULLING MACHINE.

APPLICATION FILED NOV. 19, 190B.

Patented Oct. 24, 191 1.

4 SHEBTS-SHEET 1.

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J. B. HADAWAX.

TACK PULLING MACHINE.

APPLICATION FILED NOV. 19, 1908.

Patented Oct. 24, 1911.

I 4 SHEETS-SHEET 2.

J. B. HADAWAY.

TACK PULLING MACHINE.

- APPLICATION FILED NOV. 19, 1908.

1,006,652, Patented Oct. 24, 1911.

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4 SHEETS-SHEET 4.

Patented Oct. 24, I911.

UNITED STATES PATENT ornion.

JOHN B. HADAWAY, OF BROCKTON, MASSACHUSETTS, ASSIGN'OR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

TACK-PUDDING MACHINE.

Specification of Letters-Patent.

Patented Oct. 24, 1911.

Application filed November 19, 1908. Serial No. 463,390.

Tack pulling machines have heretofore been devised by which the projecting lasting tacks may be removed from a lasted shoe preparatory to the sewing operation, and these machines may also be used to remove the projecting anchor and stay tacks after the sewing operation of the shoeis completed. Machines have also been devised for withdrawing the insole tacks which are driven in flush with the surface of the sole prior to the lasting operation, and serve to hold the sole in place upon the last until after the sewing of the upper or upper and welt is completed. Prior to the present invention, no machine has been devised which is adapted to remove both the projecting lasting, anchor andstay tacks and also to remove the flush insole tacks,'and in those cases where machines have been employed for removing the projecting tacks 1t has been necessary to either employ additional 7 machines for removing the insole tacks, or to femove these tacks by means of a hand too It is the object of the resent invention to provide a machine by w ich a part or all of the lasting tacks may be removed from the lasted shoe preparatory to the sewing operation, and by which the projecting lasting and anchor. tacks and also the flush insole tacks may be removed, after the sewin operation.

ith this object in view, one feature of the invention contemplates the provision in a machine for pulling tacks from a lasted shoe of tack pulling devices and actuating means constructed and arranged to enable the operator to either pull the tacks whlch project from the lasted shoe, or to pull the tacks which are driven in flush with the sole.

I Broadly considered, the invention contemplates the provision of any suitable-tack pulling means which is so constructed and arranged that the operator may utilize the machine to pull the projecting tacks without injury to the upper, ormay utilize the machine to withdraw the tacks which are driven in flush with the surface of the sole. The same or dilferent tack pulling tool or tools may be employed for engaging and withdrawing the projecting and flush tacks. In the simplest and preferred form of the invention, however, thetack pulling device or devices is so constructed that-the projecting and flush tacks are presented in position to be operated upon by diiferent, parts of the same tool or-tools.

A further feature ofzthe invention contemplates the provision in a machine provided with tack pulling means constructed and actuated to engage and pull either projecting or flush tacks, of work positioning devices which are constructed and arranged to permit the operator to present the lasted shoe in proper position for pulling the projecting. tacksor to present the shoe in proper position for the pulling of tacks which are driven in flush with the sole. Broadly considered, this feature of the invention contemplates the provision of any suitable form of positioning devices which will enable the operator at will to properly position the shoe for pulling either projecting or flush tacks. In the preferred form of the invention, however, the positioning devices comprise means for engaging the upper and positioning a projecting tack in proper relation to the tack pulling devices, and a tack gage for enabling the operator to properly position the sole tacks with relation to the tack pulling devices, the positioning means and gage being so constructed and arran ed that either may be brought into working a relation with the tack pulling devices at the will of the operator.

A further object of the invention is to provide an improved construction of track pulling mechanism by which insole tacks can be readily and quickly pulled from a shoe in a more eflicientmanner and with less danger of injury to the sole, or of breaking the tack and leaving a part thereof in the sole or last, than with the devices heretofore employed for this purpose.

relative shift-ing of the locating means and jaws to'brin'g the tack into the path of the jaws as they are actuated to dig into the sole on opposite sides of the tack.

In the machine hereinafter described these features of the invent-ion are embodied in a machine' adapted to pull projecting tacks as" well as to pull-tacks which are driven in flush with the. sole, but it will be understood that these features are not limited in their application to such a machine, but may be embodied in machines which are '25 not intended for pulling or not adapted to pull the projecting lastln g, stay or anchor tacks.

In addition to the features of invention above referred to, the invention also consists in certain devices, combinations and arrangements of parts hereinafter described and claimed, the advantages of which will be apparent to those skilled in the artfrom the ollowing description.

The various features of the invention will be understood from an inspection of the accompanying drawings, in which-- Figure 1 is a front elevation of the machine embodying the features of the present invention in their preferred form; Fig. 2 is a side elevation looking from right to left in Fig. 1; Fig. 3 is a front elevation with thetack pulling devices and one of the work positioning devices removed; Fig. 4.

is a; vertical sectional elevation; Fig. 5. is a sectional view on line 5-'5, Fig. 2-; and Fig.

6'is a detail view showing one of the tack v pulling jaws in front and side-elevation.

In the construction of machine shown, the

tack pulling devices comprise two 'aws 1 which are secured to the lower ends 0 levers 2 and are given a reciprocatory movement toward and from the work and also a vibratory motion toward and from each other. The jaw carrying levers are pivotally'supported at 3 upon a slide 4 mounted toreciprocate in suitable guideways formed in the frame of the machine. The slide is connected at its upper end to a rod 5, the upper .60 end of whichis provided with a strap encirling an eccentric 6 on the shaft 7. During the operation of the machine the shaft-7 is continuously rotated and the slide 4 and jaws carried thereby are reciprocated by the eccentric 6 to move the jaws toward and tack into position where it will from the work. During the reciprocation of the jaws, the jaw carrying levers 2 are vibrated on their pivots 3 by means of cams 8 arranged'to engage rolls carried on the upper ends of the levers, the cams being properly timed with the eccentric 6 to move the jaws toward each. other as they come into position to engage the tack to be pulled, and to open the jaws after they have been moved upward and have pulled the tack. The jaws are adjustably secured to the lower ends of the jaw carrying levers by means of clamping screws 9, and may be adjusted upon the levers by adjusting screwslO.

' In order that the jaws may be adapted to act-efliciently upon either the projecting tacks, such as lasting, stay or anchor tacks, and also upon the sole tacks which have been driven in flush with the sole, the working ends of the jaws are diiferently shaped at difierent points on their opposing edges.

-A part of the-working end of each jaw is chisel shaped, as indicated at 11 in Fig. 6, so that this partof the working end will bite into and grip the shank of a tack which may be located between the jaws as they are brought toward each other. The rear part of the working ends of' the jaw are gouge shaped, and project slightly beyond the chisel, asjindicated at 12 in Fig. 6, so that the rear 'portion of the working ends of the jaws will act to dig into the sole when it is resented in position to cut the path of I movement of the jaws, and will pass under the head of a tack embedded in the sole and located between the jaws.

In order to enable the working edges 11 of the jaws to operate upon and pull a projecting tack without danger of injury to the upper, and also to enable the operator to conveniently and rapidly position the tacks so that they will be engaged by the jaws, the machine is rovided with positioning plates 13 arranged to engage the shoe on opposite sides of aprojecting tack and to guide the roject between the edges 11 of the tack pu ling jaws. These plates also act as work supports for the work during the tack pulling movement of the jaws. The work positioning lates 13 are secured to the lower ends of evers 14 and project somewhat beyond the lower ends of the levers, so that the tack ulling jaws may operate to engage the tacr close to the surface of the shoe which is pressed against the under surface of the plates.

In order that the work' positioning lates 13 may be moved out of working reliition with the tack pulling jaws when it-is desired to pull insole tacks, the carrying levers are pivotally supported at 15 upon rock arms 16, and'are connected to their upper ends by links 17 which are pivoted to the frame of the machine at 18. By rocking the arms 16, the plate carrying levers may be swung upward and outward to carry the plates 13 out of working relation with the tack pulling jaws. I

The mechanism for operating the rock arm 16 to move the work supports into and out of working relation with the tack pulling jaws comprises a slide 19 having its upper end connected with the rock arms by means of links 20, and provided with recesses engaged by the bifurcated front end of a lever 21. The lever 21 is pivoted at 2:2

to the frame of the machine, and is normally held in position to retain the work supporting plates 13 out of working relation with the tack pulling jaws by a spring 23. The lever is operated to move the platesinto working relation with the tack pullingjaws through a rod 24 connected with a treadle (not shown).

The means for enabling the operator to properly position a soletack with relation to the tack pulling jaws when it is desired to operate upon. tacks driven in flush with the surface of the sole, consists of a tack po- 25 sitioning gage 25 formed on the front end of a lever 26 which is pivotedat 27 and is provided at its rear end with an adjusting screw 28 arranged to engage an arm 29 on the lever 21. A screw 28 is held in engage- 3c ment with the arm 29 by a spring 30. When the work positioning plates 13 are in working relation with the tack pulling jaws, the tack positioning gage 25 is held in the position indicated in Fig. 4 where it will not interfere with the proper operation of the work positioning plates, or the operation of the tack pulling jaws upon the projecting tacks presented thereto. The upper position of the gage 25' is determined by an adjust- 40 ing screw 31. When the lever 21 is operated to move the work positioning plates 13 out of working relation with the tack pulling jaws, the upward movement of the lever 21 allows the spring 30 to swing the lever 26 4 about its pivot, and thus move the gage 25 downward into position below the path of movement of the working ends of the tack pulling jaws. The lower position of the gage is determined by an adjusting screw 32. When in working relation with the tack pulling jaws, the lower end of the tack gage 25 is directly back of and below the path of movement of the working edges 12 of the jaws, and the operator may quickly and rapidly position a sole tack in proper relation to the jaws by bringing it into position directly in front of the gage holdlng the surface of the sole against the lowerend of the gage. Having thus ositioned the tack W without bringing the sur ace of the sole into the. path of movement of the tack pulling devices, the operator may, then press the sole upward, the spring 30 yielding to allow the gage to move upward until the stop 31 ar- 'rests the upward movement of the gage.

This upward movement of the sole and gage brings the surface of the sole into the path of movement of the working edges 12 of.

the jaws, so that as the jaws are advanced toward the workand are moved toward each other, they dig into the surface of the sole on opposite sides of the tack and pass under ,the head of the tack. During the upward ortack pulling movement of the j aws, the gage acts as a work support for resisting the pull of the tack pulling jaws. By manipulating the treadle connected with the rod 24, the operator may'at will bring the work supporting plates 13 into position to cooperate with the tack pulling jaws, and may rapidly and conveniently present any projecting tacks, such as last, anchor or stay tacks, to the tack pulling devices, without danger of injury to the upper, or may bring the tack the same tack pullingjaws shouldbeutilized for pulling both the insole and lasting tacks, nor is it essential, in case the same jaws are utilized for pulling all the tacks, that different parts of the working ends of the jaws should be differently formed, or that the insole and projecting tacks should be presented to different parts of the working edges of the jaws.

Having explained the nature and object of the invention, what I claim is 1. A tack pulling machine ,having, in combination,-opposed tack engaging jaws provided with working ends shaped to dig into the sole of a shoe and pass beneath the head of a tack, and continuously operating mechanism for actuating the jaws to dig into the sole on opposite sides of the tack and pull the tack from the shoe, substantially as described.

2. A tack pulling machine, having, in

combination, opposed tack engaging jaws provided with working ends shaped to dig into the sole of a shoe and pass beneath the head of a tack, mechanism for actuating the jaws to dig into the sole on opposite sides of the tack and pull the tack from the shoe, and means for locating a tack and then relatively shifting the locating means and jaws to bring the tack into the path of the jaws, substantially as described.

3. A. tack pulling machine, having, in

combination, opposed tack engaging jaws provided with working ends shaped to dig into the sole'ofa shoe and pass beneath the head of a tack, mechanism for actuating the jaws to dig into the sole on opposite sides of the tack and pull the tack from the shoe, and means for locating the tack with the surface of the sole cutting the path of the working edge-of the jaws, substantially as described. i

4;. A tack pulling machine, having, in combination, tack pulling devices provided with means for engaging a projecting tack .and with means for engaging a flush insole tack, actuating mechanism for the tack pulling devices, meansfor engaging the upper and positioning a lasting tack with relation to the tack pulling devices, and a sole tack gage, substantially as described.

5. A tack pulling machine, having, in combination, opposed cooperating tack pulling jaws constructed'and actuated to engage and pull either projecting or flush tacks, mechanism. or {continuously actuating the jaws, and work positioning devices constructed and arranged to permit the operator at will to present the shoe in relation to the jaws to pull either pro ecting tacks or to pull flush tacks, substantially as described.

6. A tack pulling machine, having, in combinatiomtack pulling devices, means for v positioning a shoe to pull projecting tacks,

means for positioning a shoe to pull sole tacks, and means for selectively bringing either of said: means into working relation .to the tack pulling devices, substantially as described.

7 A tackpulling machine, having, in combination, tack pulling devices, means for protecting the upper in pulling lasting tacks,

propera sole tack gage, and means for selectively bringing said protecting means or gage into working relation to the tack pulling devices, substantially as described.

8. A tack pulling machine, having, in combination, work positioning devices constructed and arranged to hold the face of the work out of the path of the pulling devices, work positioning devices constructed and arranged to position the work with the face cutting the path of movement of the pulling devices, and means for selectively bringing either of said work positioning devices into working relation with the tack pulling devices, substantially as described.

9. A tack pulling machine, having, in combination, two opposed tack pulling jaws, means for actuating the jaws to engage the opposite sides of a tack and pull it from the shoe, work positioning plates for guiding the the tack between the jaws, and means for bringing the work positioning plates into or out of working relation with the tack pulling jaws, substantially as described.

10. A tack pulling machine, having, in combination, two opposed tack pulling aws, means for actuating the jaws to en age the opposite sides of a tack and pull it trom the shoe, work positioning plates for guiding the tack between the jaws, a sole tack gage, and means or bringing the work positioning plates and sole tack gage selectively into and out. of Working relation with the tack pulling jaws, substantially as described.

In testimony whereof I aflix my signature, in presence of two witnesses.

' JOHN B. HADAWAY. Witnesses:

IRA L. FISH, N. D. MCPHAIL.

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