US70577A - John k - Google Patents

Description

@gaat teas sim ffm JCIIN- K. KRIEG, 0F NEW YORK, N..Y. Letters Patent No. 70,577, dated November 5, 1867; anteriated October 127, 1857.

#Oog- IMPROVED PEGGING-JAGK.

ilge tlgthnle nach it im tlgtttetttts uttut mit mating nrt-tfY tigt smite.

To ALL WHOM 1r MAY coNoEnN:

Be it known that I, JOHN K. KRIEG, oi the State, city, and county of New York, have invented certain new and useful Improvements in Pegging-Iacks; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing, which forms partn of this speciiication, in which- The jackis shown ina side elevation, with a part in section.

My said invention relates to the construction of pegging-jaclis which shall bc adapted both to boots and shoes without the necessity ot' any'variation, except length of parts to provide for a diil'erence of height.

My invention consists inmaking the last-holder hollow throughout its entire length, instead of solid, as heretofore made, for the purpose and substantially as herein described, and in the special arrangement and combination, with the said last-holder, of the short lever, to which the griping power is applied, by which I obtain the greatest amount of griping power within the required minimum limit of space.

To enable others to ineke and use my invention, I will proceed to describe the construction and operation thereof.

In constructing my improved pegging-jack, I employ the usual frame, consisting of uprights, A A, erected on and cast with a suitable base, B. I also have a last-holder, C, which has trunnions, C', forming the fulcrum ofthe clamping movement ot' the said holder C. D is a pin, projecting from the top of the holder C, on which pin the vlast is placed, having a socket to receive the pin, all in the usual manner. l

My improved jack is intended for boot-s as well as shoes, and I have therefore shown the standards A A'ns ot' sulicient height to giveiclearance for the legof the boot; and for the saine reason the last-holder C is of equal height with the standards A. The jack is also designed for small as well as large boots and shoes, and

i hence the size of the pin D is limited bythe smaller sizes of lasts. As heretofore made, this pin is cast or driven into the top of the last-holder; but from the necessarily limited size ofthe pin, as before explained, it is liable to be broken off in the operation of pegging, requiring to be renewed. In the renewal the pin must be drilled out, a tedious and troublesome operation, involving loss of time, and requiring the aid of machinists tools. Now, one ofthe objects ot' my invention is t'o overcome all these diliculties, and enable the operator, in case ot' breakage, to renew the pin himself. To do this I have the last-holder C cast hollow its entire length, as shown in the drawing. I then provide a rod, D', ot' suhcient length to 4form several pins, and I insert this rod in the hole in the last-holder, leaving tho lengt-h of one pin projecting above, osrepresented in the drawingY This I call the pin-rod. In case the pin is broken the operator has only to drive up the rod suiciently to form another pin, and this may he 'donc wit-hout the use of special-tools or the aid of a skilled mechanic. I

When the last-holder C is long, as for boot-work, the horizontal lever F, to which the treadle-rod is fastened, is placed some little distance (see drawing)-abovc the fulcrum of the holder C, the practical e'ect of which is -to lengthen the short lever F, thus reducing the liability of breakage by lessening the strain thereon, and yet not have the point of connection therewith of the treadle-rod G removed from ovcrthe centre of the jack-frame, for the jack requires te be revolved horizontally during the progress of the work in order to give the operator easy access to all sides of the sole ot' the boot, and hence this arrangement of the lever Fis important, as the end thereof is thus kept immediately over the peint of its connection (by the rod G) with the trcadle, however the jack muy be turned. To facilitate the turning of the jack, I have a cellar cast on the bottom of the hase B. Said collar is concentric to the treadle-rod G, and sits into an opening inthe bench, or in a bed of suitable corresponding shape, fixed in the bench.

lhc operation of thejaclr is 'as follows: .The lasted boot or shoe is placed with the solo upward Aon the jack, the toe resting on a block, II, (said block has small trunnions, f, which take into riotches'z' in the top of the frarnc,) while the pin D is inserted in the top of the inverted last. Pressure now-made on the treadle j draws on thc end of lever F, throwing over the top of the holder C and clamping the hoot or shoe firmly, holding it in position for the pegging.

I claim as my invention, and desire to secure by Letters Patent- The construct-ion of the hollow last-holder, in combination with thepin-rod inserted therein, and adjustable for the purposes and-as specified.

bonn K. KRIEG.

Witnesses:

C. H. Smm, Ones. II. SMITH.

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