US253240A

US253240A - tongue

Info

Publication number: US253240A
Authority: US
Publication date: 1882-02-07
Anticipated expiration: 1899-02-07

Description

(No Model.)

T. s TONGUE. DRIVING MEGHANISM FOR SEWING AND OTHER MACHINES No. 253,240.. Patented Feb. 7.11882 torne s UNITED STATES PATENT OFrrca.

THOMAS S. TONGUE, OF BIRMINGHAM, COUNTY OF WARYVIOK, ENGLAND.

DRIVING MECHANISM FOR SEWING AND OTHER MACHINES.

SPECIFICATION forming part of Letters Patent No. 253,240, dated February '7, 1882. Application filed December 29, 1881. (N model.) Patented in England October 24, 1878.

- scription of the invention, which will enable others skilled in the art to which it appertains to made and use the same, reference being had to the accompanying drawings, which form a part of this specification. I

This invention relates to certain improve ments in the driving mechanism for sewing and other machines, and has for its object to so construct and arrange the fly-wheel and the driving-wheel,thatthelattercan be made either fast or loose upon its shaft at the will of the operator, whereby he will be enabled to wind cotton for shuttles or on spools withoutdriving the machine.

A further object of my invention is to improve the arrangement of treadles, as hereinafter fully set forth.

In the drawings, Figure 1 illustrates the application of my improvement to a sewing-machine stand or frame. Fig. 2 is a perspective view of the driving-wheel. Fig. 3 is a view of the spring-ring and wedge, and Fig. 4. represents the fly-wheel, and Fig. 5 represents a modification.

A indicates the fulcrum-bar of the two treadles B B, which bar I arrange at the front of the frame or stand (J, the treadles leading therefrom rearward or away from the operator.

D indicates a bar connecting the fulcrumbar with the rear tie-rod, E ,aud F represents the standard, which is secured upon barD, and on which the vibratory beam G is pivoted.

This vibratory beam connects with the rear ends of the treadles by means of links H, one of the said treadles being connected by acounecting-rod, I, with a crank upon the drivingshaft K.

011 the driving-shaft are mounted the loose driving-wheel L and the fly-wheel M, which is rigid upon said shaft. The fly-wheel, or, as herein shown, the driving-wheel, is recessed, as in Fig. 2, and within a circular channel in said recess is arranged an iron or steel spring-ring, N, made square in cross-section, and having a slot, 0, which receives one end of a wedge, P. The hub Q of the fly-wheel closes the recess of thedriving-wheel, and upon said hub, at different distances from its center, are the two pins R B, arranged eccentrically, as shown in Fig. 4. These pins project within the recess of the driving-wheel and are employed to act upon the wedge. When the fly-wheel is revolved in one direction the'outer pin, acting upon the wedge at a point nearthe connection of the wedge with the ring, will cause the ring to turn in its circular bed or channel; but during a reverse movement of the fiy-wheel the inner pin, striking the inner end of the wedge, will move or turn the samefrom the radial position shown in Fig. 2, and hence spring the ring so as to cause it to bind against the walls of its channel, and thus cause the driving-wheel to rotate in unison with the fly-wheel'and the drivingshaft. The driving-wheel being thus either fast or loose u'ponuts shaft at the will of the operator, he is enabled to wind the cotton for shuttles or on spools without driving the machine,

By the application of the above-described driving mechanism to such and other similar purposes or uses the action and driving-are rendered much less laborious than heretofore,

the beam being situated with its treadles at the rear of the machine, in lieu of at the front, the latter being 'too direct a motion and tiring and difficult to work but by transferring the beam to the position shown the machine can be operated with great ease.

In the modification, Fig. 5, the inner and I fixed wheel, S, has wedge-shaped recesses in its periphery, and the outer wheel, S, is recessed to receive the driving-wheel and formed with an annular wall, T. Small balls U are arranged within these recesses, so that when the inner wheel turns in one direction the balls will be wedged between the wall T and the walls of the smaller ends of the wedge-shaped recesses, thus causing the outer wheel to rotate with the inner wheel.

however, brings the balls into the larger parts of the wedge-shaped recesses, and hence the outer wheel will not be driven by the move, ment of the inner wheel. f

\Vhat I claim is-- l- The o at on, with the treadl e mechilmsmhm'mg e fulcrum-bar A atthe front A reverse movement,

of the machine, from which extend rearwardly the treadles connected by a vibratory beam, G,

at the rear of the machine in lieu of the front, anda rod connecting the treadlcs with the drivingshaft, of the flywheel secured rigidlyon the latter, andhavingpins R, and the fly-whcel carrying a spring-ring, N, adapted to turn within an annular channel, and having the wedge P, adapted to be engaged by the pins on the flywheel, snbstantially as and for the purpose herein shown and specified.

2. The combination,with the fulcrum -bar A atthe front of the machine, of the treadles B, pivoted or having bearings thereon at their front ends, and extending rearwardly therefrom and connected by the vibratory beam G at the rear of the machine in lieu of the front, and the rod connecting one of the treadles THOMAS SKELDING TONGUE.

\Vitnesses:

J OHN KENDRICK,

CHARLES E. BATGHELOR.