US746306A - Tack-pulling machine. - Google Patents

Description

"No. 746,306. 4 PATENTED DEC. 8, 1903. b 0. L. EATON.

TACK PULLING MACHINE.

APPLIGATION FILED AUG. 7, 1902.

N0 MODEL. 2 SHEETS-SHEET 1.

ii I

mtnesses." lhbeni'or; %JMM@ fik No. 746,306. PATENTED DEC.8,1'903.

C.L.EATON.

TACK PULLING MACHINE.

v APPLICATION FILED AUG. 7, 1902. NO MODEL. 2 SHEETS-SHEET 2.

Wl'l fneascs: I aa lzvfjnizzr; 6 x ence atgm UN T D" STATES Patented December 8, 1903.

PATENT. OFFICE.

CLARENCE L EATON, E BINGI-IAMTON, NEW YORK.

TAVCK-PULLING MACHINE.

SPECIFICATION forming part of Letters Patent No. 746,306, dated December 8, 1903. Application filed August 7, 1902. Serial Nn. 11 8,'7'74=. (No model.)

- to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to tack-pulling machines, and has for its object to produce a simple and cheap machine adapted to remove the lasting-tacks from a lasted boot or shoe prior to the securing together by the welt-sewing machine of the upper, insole, and welt.

After a shoe has been lasted it is permitted to set for a short period of time, usually about twenty-four hours, before the lasting tacks are removed in order that whenr'emoved the upper will retain the shape imparted thereto by the lasting-machine and will not be dis placed during the operation of the welt-sewing machine 'in sewing together the upper, welt, and insole. The lasting-tacks, how ever, must be removed before the welt, upper, and insole can be stitched together, for the reason that unless they are removed there is great danger of breaking or injuring the needle as it passes through the meeting edges ofthe upper and welt and the lip of the insole. It has been heretofore proposed to provide a welt-sewing machine with atack-pulling attachment designed and intended to remove lasting tacks as the sewing progresses and immediately in advance of the action of the needle; but the efforts in this direction have proved unsuccessful, for the reason, that the presence of the tack-puller tended to complicate the machine and to put upon the operating mechanism thereof an additional burden, which had a tendency to cause irregular operation of the sewing mechanism. It has also been proposed to provide independent tack-pulling machines; but they have generally been of a complicated and expensive character and for that reason have not come into use.

The object of the presentinvention is to provide a simple machine of a compact and effiywork-bench, table, or other support.

cient construction composed ot' few parts and requiring but little power' to operate it and which shall be of small size, so that it can be placed upon a work-bench in convenientjuxtaposition to the welt-sewing machine, so that the operator prior to the presentation of the lasted shoe to the operation of the welt-sewing machinem'ay quickly removethe lasted tacks from the shoe.

To the above ends the presentinvention consists of the devices and combinations which will be hereinafter described and claimed.

The present invention is illustrated in the accompanying drawings, in which Figure 1 shows the machine in front eleva tion with the shoe shown imposition to have its lasted tacks removed. Fig. 2 shows a top plan view of the machine. Fig. 3 shows the machine in side elevation. Fig. 4. shows in perspective one of the tack-pullers removed from the machine, and Fig. 5 shows in perspective the guard or foot which cooperates with the tack-puller.

Similar referencecharacters will be employed throughout the specification and draw-.

ings to designate corresponding parts.

' The machine comprises 'a suitable frame consisting of a standard '1, having a base 2, which may be fastened by bolts "3 upon a (Not shown.) At the upper end of the standard 1 the frame is provided with the bearing 4, in which is mounted to turn the shaft 5, having at one end the fast and loose pulleys 6 and 7, driven by a belt from any suitable source of power to produce a rapid rotation of the shaft 5.

At the forward end of the shaft 5 is seen red, by means of a set-screw 8,a head 9, which carries diametrically arranged with relation to each other the tack-pullers 10, two such tack pullers being shown in thedrawings; but it is obvious that their number may be increased,if desired. The tack-pullers 10 are provided with beveled-ends 11", in which are formed notches 12, arranged to engage the head of the tack 'for'the purpose of withdrawing the tack from the lastedshoe.

Cooperating with the tack-pulling devices 10 is a curved guard 13, which surrounds and incloses a portion of the path of movement of the tack-pullers and which at its lower end is provided with a closed slot 14:, the forward end of which is Vshaped, as shown at 15, and arranged to receive and position the tacks in line to be operated upon by the tack-pullers 10, as shown clearly in Fig. 1 of the drawings.

It is essential that the notch in the guard or foot 13 may be positioned with relation to the tack-pullers so that the beveled end of the tack-pullers will engage the tacks just as they reach and are about to pass the lowermost point in their path of movement, and for this purpose the tack-pullers are arranged to be adjusted on the head 9, and the guard or foot 13is adjustably connected by means of a bolt 16, which takes in a slot 17, formed in the outer end of the curved arm 18, by means of which the foot or guard 13 may be adjusted in the arc of a circle so as to properly position the notch 15 with relation to the path of movement of the tack-pullers 10.

The arm 18 is fastened by a bolt 19 to the top of the bearing 4 and may be adjusted thereon by means of a slot 20, so that the notch 15 in the foot or arm 13 may be accurately positioned with relation to the notches 12 in the tack-pullers 10. The tack-pullers are provided with slots 21 and are held to the head 9 by means of screws 22.

In operation after the tack-pullers and the guard or foot 13 have been adjusted with relation to each other the shaft 5 is rapidly revolved, so as to cause a rotation of the tackpullers 10 in the direction of the arrow shown in Fig. 1, and the shoeis held in the hands of the operator with its sole portion in close contact with the under face of the guard or foot 13 and moved forward in the direction shown by the arrow on the shoe, and as the tack reaches the notch in the guard or foot 13 it will be in a position to be engaged by that tack-puller which may be at that time in the position shown in Fig. 1 of the drawings, and as the tack-puller engages the head of the tack it quickly removes it from the shoe and throws it out of the way.

It will be noted that the tack-pulling device in its engagement with the tack expends its thrust against a fixed abutment-namely, the notched end 15 of the slot 14s0 that there will be no jar or vibration imparted to the hands of the operator caused by the engagement of the tack-puller with the tack, and thus the operator is enabled to hold and position the shoe without the necessity of overcoming the shocks and jars incident to the operation of the machine.

Having described my invention, I claim as new and desire to secure by Letters Patent of the United States- 1. In a tack-pulling machine, the combination with a rotating head and a tack-puller carried thereby, of a curved guard or foot provided with a closed slot against one end of which the tack is held to be acted upon by the tack-puller, substantially as described.

2. In a tack-pulling machine, the combina tion with a rotating head and atack-puller carried thereby, of an adjustable guard or foot provided with a closed slot notched at one end, substantially as described.

3. In a tack-pulling machine, the combination witha rotating tack-puller having a tackengaging edge parallel with the axis of rotation, of a guard or foot against which the tacks are held, and means for relatively ad justing the tack-puller and the guard or foot to secure the positioning of the tacks in proper relation to the path of movement of the tack-puller, substantially as described.

4. In a tack-pulling machine, the combination of a movable tack-puller and a guard or foot provided with an abutment arranged transversely to the line of movement of said tack-puller and against which the tacks are held, substantially as described.

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

CLARENCE L. EATON.

Witnesses:

T. HART ANDERSON, WM. F. FRENDENREICH.

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