US995670A

US995670A - Tack-pulling tool.

Info

Publication number: US995670A
Application number: US58524310A
Authority: US
Inventors: John B Hadaway
Original assignee: United Shoe Machinery Co AB
Current assignee: USM Ltd; United Shoe Machinery Co AB
Priority date: 1910-10-03
Filing date: 1910-10-03
Publication date: 1911-06-20
Anticipated expiration: 1928-06-20

Description

J. B. HADWAY.

TACK PULLING TOOL. APPLIOATION FILED OGT 3, 1910 Patented June 20, 1911.

lllllllll idliliklll@ PATENT tllilliiltli".

JOHN B. HADAWAY, OF SWAMPSCOTT, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY COMPANY, OF PATERSON, NEW JERSEY, A CORPORATION OF NEWv JERSEY.

fo all whom it Amay concern:

Be itI known that I, JonN l5. Himawav, a citizen of the United States, residing at Swampscott, in the. county olf' Essex and State ot' illassachusetts, have invented certain new and useful Improvements in Tack- Pulling Tools; and I do hereby declare the following to be a full, clear, and exact de scription ot' the invent-ion, such as will enable others skilled in the art to which it appertains to make and use the same.

t his invention relates to machines tor pulling tacks troni lasted shoes and more particularly to that class ot tack pulling machines in which the tacks are acted upon and extracted by a rotary tool having one or more transverse tack pulling blades or edges.

One object ot the invention is to provide a tack pulling tool ot this character with a tack puller, tile tack engaging edge of which may be readily repaired and sharpened, and may' also be maintained in proper relation to the guard tlange 0r llanges with which these tools are usually provided, as the front face otvthe puller is g adually removed or ground away by the repeated sharpening ot the puller.

In accordance with this object, one -feature oit' the. invention ',fontemplalies the provision in a rotary tack pulling tool provided with one or more `guard llanges l'or engaging the solo ot a shoe, ot a tack puller provided with an eccentric periphery back ot its transverse tack pulling edge and permitting adi ust-ment to maintain "its edge in proper relation with the guard tiange as the trout tace oit the puller is ground away in repeatedly sharpening the edge ot the puller,

In accordance with the broader 'tentures of the invention7 any suitable means may be provided for enabling the puller tofhe adjusted and secured in adjusted position so'as to bring the tack polling edge ot the puller in proper relation to the work engaging guard llange.

In the simplest and most. eliicient Ytorni ot the' invention 'which has been devised, two guard llanges are provided, although one may be omitted, these `lianges being formed as a solid spool which may he attached to a spindle or rotary support, and the hub of this spool between the tianges is drilled through on a chord, prci'era bly dianietrically, thus forn'iing an aperture in which the puller may be adjustably secured by its Specification of Letters Patent. Tnt-@unal Jung 2t), 1911i Application filed October 3, 1910.

Serial No. 585,243.

shank. lVith this construction, as the tack engaging edge ot' the puller is ground away, the proper relation between it and its` cooperating guard [lange or l'langes may be maintained by a simple longitudinal adjust nient across the-axis ot the spindle.

lt is desirable that means be provided to preventl clogging ot the tool during its operation and heretofore this has been accomplished by providing one or both ot the iiangeswith a` slot extended inward trom its perimeter ar 'anged to register with the front tace ot the tack pulling tool but, as is wellknown to those skilled in th)I art, it is also desirable that the continuity ot' the perimeter ot the guard t'lange or langes should remain unbroken.

Another object oit.: the invention is to provide a tool which will permit a ready ejection ot any-materials gathering in i'r'ront. ot the puller which would tendto clog its operation but at the same time will in'eserve the continuous bearing surface olthe guard flange or tlanges.

Yln accordamze with thisl object another feature ot the. invention contemplates the ln'ovision o'l an opening in one or both ot the guard (langes to permit leather or other matter collecting in t'ront ol" the tack pulling edge ot the puller, during its operation, readily to he pushed out`r but located within the outer margin ot the .tlange so that. the continuity ot its perimeter remains unbroken.

Other 'i'eatures ot the` invention will appear 'from the following description and will be definitely pointed out. in the appended clainis.

The preiieried l'orin oil` the invention is illustrated in the aceompanying drawings in which l Figure il is au end-elevation oli the tool; @isla ,side elevation olfthe tool with the simpel-ting spindle parti)l hrolwmaway to show how the lool is mounted in its end;

3 is a side elevation ot the tool removed from its supporting spindle and showing the llanges and puller in section on the line 3-3 of Fig. l; Fig. ll? is a transverse section on the line tl ot Fig, Q; and Figs. 5 to S are details of the puller.

In the embodiment of the invention illus trated in the drmvings, the tack pulling tool consists ot a sl'iool-shaped member comprising a hub 'l-and side lianges dand 3 prothe-guard llanges.

vided with a threaded shank i extending axially from one side of the spool and adapted to be threaded into one end of a rotary spindle 5. The tlanges 2 and 3 are in the form of disks and iorm guard tianges for the tack puller (5 which is located between them. The puller (3 is provided with a transverse tack pulling edge 7 and the` periphery 8 ot the tack puller back of the edge 7 is so shaped that it is eccentric to the axis of the spindle in order to give the clearance required for the eiiicient action of the tack pulling edge upon the tacks. lhis edge should project slightly beyond the periphery of the guard tlanges in order that it may dig under the embedded head of an insole tack and pull it from the shoe without injury t0 the sole when the sole is held tirinly against the perimeters of the guard tlange.

When the tack pulling edge becomes dulled or nicked by reason of its successive engagements with the tacks, it is removed from the head l and its edge sharpened by grinding away the i'ront face t) of the puller. Since the periphery 8 of the puller back ot thetack pulling edge is eccentric, the grinding away of the liront tace gradually brings the edge 7 nearer the axis ot' the tool and tends tp destroy the proper relation ot' the edge to the perimeters ot the guard tlanges. The tack pulling edge ol the pullersI is maintained in proper relation to the periuuftersl of the guard tianges by a comLa-nsating adjustment of the puller as the ilace ol the puller is ground away,

ln the preferred construction the puller is provided with a shank it), preferably cylindrical for a purpose which will hereinat'ter appear, which is slipped into an aperture 'll drilled through the hub l on a chord thereot', preferably a diameter. One sideet the shank l() is slabbed-oil', as at l), and the puller is held in any desired position of adjustn'ient across the axis oi the spindle 5 bylneans oi a set screw 123 threaded into a suitably located opening tormed in the ilange 3. The set screw 13 holds the puller tirmly in dill'erent positionsin the hub .l to compensate t'or the variation in the location oi the tack pulling edge produced by grinding away the iace ot' the tack puller. Ats this lace is ground away the position ol the puller in the aperture l'l otl the hub l may be successively shifted so that the transverse tack pulling edge, ol: the puller will project the proper distance beyond the perimeters of 1t will be obvitats to those skilled in the art that the construction just described provides for a quick and accurate adjustment in the simplest manner.

It is desirable that there be provision in tools ot this character 'for ejeeting waste r edge ot' the puller during its operation, to

prevent clogging and stopping an effective operation of the tool. 1t is also desirable that the perimeters of the guard tlanges which rest upon the sole of the shoe remain unbroken so as to provide a rm bearing at all times, and by reason of the smooth continuous surface presented to the shoe sole prevent its being injured by mai-ring. To thisI end one or both of the [langes may loe provided with an opening 14 therethrough within the margin of the tlange registering with the heel ol the puller and through which the waste materials may be ejected. 'lhe end et this opening adj aeent the heel of the puller is beveled, as shown at 15, and this beveled end with the rounded side of the shank l() ot the puller acts in the nature ot' a chute to assist in the easy egress of the materials.

llaving explained the nature and object ot' the invention and specitically described one lorm ot' tack pulling tool in which it may be embodied, what is claimed as new, is:-

l. A rotary tack pulling tool, having, in combination, a puller provided with a transverse tack pulling edge and an eccentric periphery back of said edge, a guard iange at one side ot the puller, and means permitting adjustment of the puller across the axis ot' rotation ot the tool, substantially as described.

2. A rotary tack pulling tool, having, in combination, a rotary spindle having a hub at one end provided with an aperture drilled therethrough on a chord thereof, a puller ha\ing a transverse tack pulling edge adjustaldy secured by its shank in said apers ture and a guard [lange at one side of the puller..substantially as described.

I). it rotary tack pulling tool, having, in combination, a rotary spindle having a hub at one end, a puller having a transverse tack pulling edge projecting from the hub, and a guard tlange at one side oil the puller having an opening theretl'irough but within the margin oliI the tlange arranged 't0 register with the heel ot the puller, substantially as described.

l. rotary tack pulling tool, having', in combination, a puller provided with a transverse tack pulling` edge and an eccentric periphery back ot said edge, and a guard ltangf` at one side of the puller provided with an opening 't'or the ejectmcnt tt waste materials. said opening having its end at the het-I otl the puller beveled outwardly to assist the materials in passing out, substantially as described.

A rotary tack pulling tool, having, in eomlnnation, a spindle having a hub at one end. a puller, having a transverse tack pulling edge and a cylindrical shank, projecting trom the hub, and a guard flange at one side ol' the puller provided with a slot cut therethrough for the ejectment of Waste materials,

said slot having its end at the heel of the puller beveled outwardly forming substantially a continuation of the rounded shank of the puller. to assist the materials in passing out, substantially as described.

` 6. A rotary tack pulling tool, having, in combination, a rotary spindle, a spool at one` end thereof comprising a hub and two flanges, a puller provided With a transverse tack pulling edge adjustably mounted in a diametrical aperture in the hub, and one of said 4.flanges havinga slot cut therethrough for the ejectnlent of Waste materials, substantially as described. A

7. A rotary'tack pulling tool, having, in combination, a hub, two guard flanges having continuous perimeters, a puller having a transverse tack pulling edge between said flanges, and provision for ejecting Waste material sidewise from between the anges, substantiallyl as described.

JGHN B. HADAWAY.

Witnesses:

CHESTER E. ROGERS, LAURA M. Goonmnsn.