US132742A - Improvement in pegging-machines - Google Patents

Description

L. D. WHEELER.

Improvement in Pegging-Machines.

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LORENZO D. WHEELER, OF FITGHBURG, MASSACHUSETTS.

IMPROVEMENT IN PEGGING'MACHlNES.

Specification forming part of Letters Patent No. 132,742, dated November 5, 1872.

To all whom it may concern:

Be it known that I, LORENZO D. WHEELER, of Fitchburg, in the county of Worcester and State of Massachusetts, have invented a new and useful Improvement in Peggin g-Machines; and I do hereby declare the following to be a reference being had to the accompanying drawing, in which Figure 1 is a perspective view of my machine in operative position; Fig. 2 is a vertical sectional elevation of the lasting-arm and its operative mechanism. and Fig. 3 is anelevation of the latch between the pitman andlever which This invention relates to that class .of pegging-machines wherein no last is employed during the process of driving the pegs; and it consists in the hereinafter-described arrangement of devices whereby the knife is operated to cut off the pegs after the same are driven home, and also in the construction of the knife That others may fully understand my invention I will particularly describe it.

A is the frame of my machine having at its top the driving-shaft and pulleyB, which transmits motion to the operative mechanism of my machine. The pulley B is moved by the belt 11, which receives motion from the prime mover. On the front side near the top of the frame A are suitable guides G, and other devices for the purpose of perforating the shoe-sole and feeding and driving the pegs. These devices do not differ from those in common use for similar purposes, and are driven by the shaft B. No claim is herein laid upon said devices, and therefore they'are not shown nor described. A t the front of the frame A, and supported in E, having at its top an arm, F, bent as shown, so that its point can reach within a boot or shoe to the toe thereof. The end of said arm F reaches to a point exactly beneath the point of the perforating-awl c, which is also coincident with the axis of the shaft E. The shoesole is thereby supportedoagainst the stroke of the awl and the blow of the peg-driver. The shaft E revolves in its bearings in the lugs D, and also has a movement therein in the direction of its axis, so that the work may be adjusted as desired, and by depressing the shaft ly sharp to out without said motion.

E it may be removed from the action of the pegging mechanism. The shaft E rests at its lower end in a step, g, upon the lever G, and is held up, when the machine is operating, with a yielding pressure by the weight H, at the rear end of lever G. The foot-piece h, at the front end of said lever, enables the operator to depress the lever and shaft E when required. Across the upper end of the arm F thereis a groove and a sliding plate, I, fitted therein. Said plate is of tempered steel, and is caused to slide forward immediately after the peg is driven to cut the same off flush with the inner surface of the sole.

So much of the machine as is included in the above general description is in common use, and therefore is not claimed herein.

Heretofore the sliding plate I has been fashioned with a knife-edge at its front end for the purpose ofcuttingthe peg; but said edge does not cut, as it has no drawing motion imparted to it, and as it cannot be maintained sufficient- The knife so fashioned must also be drawn back sufficiently far toavoid the blow of the awl, and therefore the leather is left without support immediately in vicinity of the awl and peg as it is driven through. I propose, in stead of forming the plate I with a knife-edge, to perforate said plate att' near its center, and to time its movement so that the peg will be projected into said perforation when it is driven home. By this means the leather is supported all around the awl-hole and peg when it is driven, and the latter, being confined in the hole 2', is sheared off by the motion of said plate, instead of being bent over or broken merely, as is commonly the case when the knife-edge becomes dull. The reciprocations of the plate I are produced by the lever J and connectin g-rods K L operating within the arm F and shaft E, as shown in Fig. 2. The shaft E is hollow, and a long slot, 0, extends along one side. A collar, M, is fitted to slide snugly over said shaft, and is provided with a stud,

N, which projects through the slotc into the interior cavity of said shaft. The rod L passes through said stud, and is adjusted therein by means of the set-nuts l I, so that said collar may be moved up or down to adjust the position of plate I accurately in reference to the axis of the awl, as may be necessary when pegging thin or thick soles. An annular groove is formed in the collar M to receive a clutch-ring, O, which is moved by a forked lever, P, pivoted to the side of the frame A, and actuated by an eccentric rod, Q, from the main shaft B. Thus at every revolution of said shaft the lever P is moved, and thereby the collar M with its connections and the plate I are operated. The proper timing of these movements is effected by the setting of the eccentric upon the main shaft. When the shaft E is depressed to remove the shoe away from the pegging devices, it is necessary to disconnect the lever P from the eccentric-rod Q, and this may be conveniently effected by means of the slot 12 made in the said lever, along which the wrist q may slide when the disengagement takes place. The latch R con- Fig. 3.

Having described my invention, whatI claim as new is-- 1. In combination with the arm F and the pegging mechanism, the perforated sliding plate I, as and for the purpose set forth.

2. In combination with the arm F, shaft E, and plate I, with the operative mechanism of the latter, the sliding collar M provided with the stud N, as and for the purpose set forth.

3. In combination with the collar M and the gimbal-ring O, the slotted lever P provided with the latch R, and the crank-rod Q, as set forth.

4. In combination with the plate I and its operative mechanism, the collar M and the adjusting-nuts Z 1,33 set forth. 7

LORENZO D. WHEELER.

\Vitnesses:

0. N. WrLsoN, Amos B. DAY.

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