US308357A - Belt-shifter or stop-motion - Google Patents

Description

' (No Model.)

H. A. GREEN.

BELT SHIPTER 0R. STOP MOTION.

III

Patented :Nov. 25, 1884.

Urvrrnn Erarrrs PATENT @FFICE HENRY A. GREEN, OF VOLUNTOYVN, CONNECTICUT.

BELT-SHIFTER 0R STOP-MOTION.

SPECIFICATION forming part of Letters Patent No. 308,357, dated November 25, 1884.

Application filed July 3, 1884. (No imam.)

To all whom it may concern.-

Be it known that I, HENRY A. GREEN, a citizen of the United States of America, residing at Voluntown, in the county of New London and State of Connecticut, have invented certain new and useful Improvements in Belt-Shifters or Stop-Motions; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable oth ers skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

This invention relates to certain new and useful improvements in belt-shifters or stopmotions, and is adapted to be applied to any class of machinery in which several parts are driven from the same shaft.

In the accompanying drawings I have shown my invention applied to a loom merely for the purpose of illustrating the application of the same.

In the accompanying drawings, Figure 1 is a perspective view. Fig. 2 is a plan view.

A represents a Speeder-frame to which my invention is applied, andB is a driving-shaft which extends horizontally over the same, and is provided with a pulley by means of which power is transmitted by means of a belt to a parallel shaft, B, journaled in the frame A. The shaft 13 is provided near its end with an idle-pulley, b, and a driving-pulley, b. The shaft 13 is connected by means of suit-able gear-wheels, c c c, to a shaft, 0, which is journaled in suitable boxes provided for the same.

Beneath the shaft 0 is a transverse bar, D, which carries the pivoted frame D, in one end of which is journaled a cone-pulley, E. On the upper shaft, 0, is secured a similar cone-pulley, E. Power is transmitted from the upper cone-pulley, E, to the lower conepulley, E, by means of a belt or other equivalent connecting device, E, which is kept taut and at a proper tension by the weight of the cone and frame E and D. E, provides a communicating means to drive the bobbins, fliers, spindles, and other parts of the weaving mechanism which are usually attached to the speeders.

In operating lathes, sewing-machines, and

This lower cone,

other machinery in which there are several apparatuses driven from the same shaft power can be applied thereto from the upper cone or from the upper driving pulley, E, or the lower one, if found convenient, and when driven from the lower one a connecting-belt will be necessary; When the machinery is driven from the upper pulley, E, the pivoted platform D may be supported at its outer end upon suitable springs. The driving-belt G, which passes over the pulley on the shaft B, passes through a projecting portion, g, formed on the lower end of the belt-shifting arm G, which arm is attached rigidly to a transverse shaft, H, which passes through suitable guides on the frame A, which shaft is provided with suitable adjustable stops, it 71. At a point upon the frame A a transverse bar is attached thereto, so as to provide a support for a bellcrank lever, J, which has a lower extending portion, J. The upper part of this bell-crank lever encircles the rod H and abuts against the button or stop 71/ when its retaining-catch K is released, as will be hereinafter described. A weight, j, is attached to the projecting member of the bell-crank lever J, as shown. The catch K, which is pivoted to the projectingportion Jofthebell-crank,isprovided near its central portion'with a recess or catch, it, which engages with a suitable horizontal projection or arm, Z, which is attached to the frame A, and is provided with an upwardlyprojecting portion, Z, or guide-arm. At a .point near the outer end of the lower conesupport, D, is pivoted a jointed connectingarm, M, the upper portion of said arm being pivoted to a projecting crank-shaft, N, which is firmly secured to a shaft, 0, which is supported in journals attached to the frame. The outer end of this shaft 0 is provided with a triplever, P, one end of which engages with the end of the catch arm or lever K. WVithin the frame and upon the shaft 0 is attached a stop-catch, P, which engages with a suitable projection or stop, 1), upon the frame, so as to limit the movement of the shaft 0.

The operation of my invention when applied to a belt-speeder or cone-pulleys carrying a belt which by shifting becomes the medium of transmitting various rates of motion is as follows: Should the belt F from the upper to the lower cone pulley break, the pivoted supporting-frame D will fall, and being connected by the jointed arm of the jointed connecting-rod to the projecting arm N on the rockshaft 0 will raise the lever P and release the catch-bar K. The weight attached to the bell-crank lever will cause the upper part of the same to abut against the stop It and move the same to one side, and the belt-shipper G, being rigidly attached to the idle-pulley I), will thus cause a stoppage 0f the machinery.

I claim- 1. In a stop-motion or belt-shifter, a pivoted frame provided with jointed arms connected to a rocking bar having a trip-lever, in combination with a pivoted bell crank, J, a rod carrying a belt-shipper, and a pivoted catcharm, K, substantially as shown.

2. In a belt-shifter or stop-motion, a pivoted frame with driving mechanism, a sliding-rod Vvitn esses:

TIMOTHY PARKER, JonN N. Lnwis.

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