US255739A

US255739A - utley

Info

Publication number: US255739A
Authority: US
Publication date: 1882-03-28
Anticipated expiration: 1899-03-28

Description

(No ModeL) 3 Sheets-Sheet 1. I

J. S.,UTLBY. sToP MOTION POR WINDING-ANDTWISTING 182011115188= No. 255,789 Patented 1881.281882.

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(No Model.) 3 sheetssheet 2.' l

, Y J. s. UTLBY.. STOP MOTION POR WINDNG AND TWISTING MACHINES.

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Patented Mar. 28, '1882.v

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UNITED STATES PATENT OFFICE.

JAMES S. UTLEY, OF PAWTUCKET, RHODE ISLAND.

STOP-MOTION FOR WINDING AND TWISTING MACHINES.

sPEcrEIcATIoN forming part of Letters Patent No. 255,739, dated March 28, 1882. Application filed october a?. ian. (No model.)

ing to the spindle, with a view to prevent breakage of the remaining threads, or the production of a thread composed ofless than the normal number of strands.

The shipping device which I employ in carrying my invention into effect is a vibratory latch-lever, connected at one end to a clutch, which serves to communicate movement from the driving-shaft to the spindle-gear or belting and at the other to the feed-roll stand. The lever is held in a position in which both the spindle and the feed-rolls are in action by means of the drop-bar head. When this head is moved hack the lever is unlatched, and by aspring is caused to move in a direction yto simultaneously unclutch the spindle and arrest the feed. It remains in this position until the head, after the broken thread has been peced, is moved back to its first position, said head when thus moved actin g to return the lever against the stress of its spring to a position in which the feed and spindle will again be in gear with their drivers. The lever may have a handle which can be used for this purpose, and the drop-wire head may be spring-controlled, so as to return to position when released from the lever. An incline on the drop-bar head is, when the lever is unlatched, acted on by the lever in such manner as to throw the head far enough back to be out of range of the cam. The cam, in fact, simply unlatches the lever by moving the head far enough back to bring the end of the lever against the incline, and the strong spring on the lever does the rest of the work.

The nature of my invention and the manner in which the saine is or may be carried into effect will be readily understood by reference to the accompanying drawings, in which- Figure l is a sectional side elevation ot'. so much ofa winding and twistingr machine as needed to illustrate my invention. Fig. 2 is a like view, on an enlarged scale, of that portion of the machine containing the drop-wire head and parts adjacent thereto. Fig. 3 is a front elevation of the same. Fig. 4t is a plan of the same with the feed-roll stand removed, and Fig. 5 is a rear elevation of the same.

A is the drop-wire head. B are the dropwires. G C' are the feed-rolls, and C2 the feedroll stand. The lower feed-roll, C, is powerdriven, and for this purpose has on its axle a pinion, a, which meshes with a pinion, b, on a rotary shaft, D, which, through suitableintermediaries, derives its motion from the drivingshaft of the machine. The upper feed-roll, C', is an Vidle-roll, and both rolls are grooved, as shown, although they may,if desired, bepla'in rolls. This is one known form of feed device in machines of this class, and requires no further explanation.

E is the spindle.

The machine in this instance is designed to twist and wind four threads, and for this purposefourdrop-wiresareprovided. The threads pass from their bobbins or cops over a frictioncloth or its equivalent, (not shown thence through thedrop orstop-motion wiresB5thence through the guide-eye c in front of the feedrolls, which brings the threads together into one. From the guide cthe aggregated threads pass around the feed-rolls G C as many times as there are lgrooves therein, passing thence, over a glass rod and through` an eye at the rear of the rod, and vertically over the spindie, (not shown,) and thence to the spindle, where they are twisted and wound intoone thread in the usual way.

Having indicated in a general way the organization and operation of themachine, Inow proceed to a description ot' the construction and mode of operation of those parts of the machine in which my invention is comprised.

The drop-wire head A is mounted in guides on a stand, A', so that it can slide back and forth in the direction of the width of the machine. It is by a spring, d, (connected at one end to the head A and at the other end to IOO stand A,) held normally in the position shown in Fig. 2, in which position the stop-motion pins B (which are looped to and form part of the drop-wires B) will, when any one of them is permitted to drop, fall in the path of a fourleaved revolving cam F. Under these circumstances the cam, striking against the dropwire, will force back the head A.

The drop-wires, as usual, consist each ofthe eye part B, mounted so as to be free to vibrate on the axle B2, and the stop-motion piu B',- looped to B and extending down through a guide-opening in the head. For the sake of clearness the wires are shown in their elevated position out of range of the cam F. This position, however, they assume only when threads under tension pass through their eyes, the threads serving to uphold them. When any one of the threads breaks its drop-wire falls, so as to bring its lower end, B', in the path of the cam, with the result above mentioned. This movement of the drop-wire head, due to the breaking of any one of the threads passing through the drop-wires, I avail of to arrest the movement of both the feed and the spindle. To this end I pivot to the lnachine, on a vertical axis, e, a lever, G. One end of this lever,

as at f, is formed so that it will, when the dropbar head A is in operative position, enter and engage a notch,g, on the front end ofthe head, as seen in Fig. 4, assuming the spindle side of the machine to be the front of the machine. A powerful spring, L, considerably stronger than the drop-wire head-spring d, pulls this end of the lever toward the head, so as'to cause it to bear tightly against the head. Under.

l while the lever, as soon as released, acts to throw back the head out of range of the cam.

On the upper face of the latch end of the le- `ver G is an incline, j, which is intended to .stop the feed. For this purpose the feed-roll stand G2 is supported in guides, so as to be verit brings the` two into gear again.

fthe incline] lies under the correspondingly-intically'movable. When raised it lifts the pinion a out of gear with its driver b,and so arrests movement of the feed,and whendropped The toe of clined lower end of the stand in such position that when the lever G is in its latched position the stand will be permitted to drop low enough to bring the pinions a b linto gear, as indicated in full lines in Fig. 5. When, howl ever, the lever is unlatched and isv brought by its spring to the position shown in dotted lines in Fig. 4, the inclinej will be forced under the stand, with the effect of lifting the latter far To arrest movement ofthe spindle E, I make use of the opposite arm of the lever G. This arm at its end is provided with a pin, 7c, as shown in Figs. 3 and 4, which enters an annular groove, l, in the hub ofa pulley, H, mounted loosely on the cam-shaft F', which is the main or driving shaft of the machine. Upon therevolving camshaft is fixed one half of a clutch, m, the other half, m', of which is formed on the contiguous face of the pulley-hub. The pul. ley H, through suitable intermediate belts and pulleys, (indicated at l 2 3 4, Fig. 1,) is connected to the spindlewhirl, and thus drives the spindle. When the lever G is in its latched position (shown in full lines in Fig. 4) the pulley H is in clutch with the revolving camshaft, and thus revolves the spindle. When, however, the leveris unlatched and in the position indicated in dotted lines, Fig. 4, the pulley, by means of the pin 7c, will be forced back out of clutch with the cam-shaft, and the spindle consequently will cease to revolve. Thus, upon theforward movement of the drop-wire head, due to the breaking of any one of the threads, the lever will be unlatched, with the effect of simultaneously stopping the movement of both feed and spindle. The parts remain in this position until after piecing the broken thread, the drop-wire head is again brought back to its rst position, and the lever is again latched in place. parts I provide the lever G with a handle-arm, G", by which it can be moved against the stress of its spring h. When thus moved it will cease to press ou the drop-wire head, and the latter, by the action of its spring d, will return automatically to its first position.

I have described, in illustration of my invention, mechanism which 1 believe to be best adapted to carry the same into effect, and which possesses advantages on the score ot' simplicity, economy, and efficiency over other devices which could be employed for the same purpose. It is manifest, however, that the result aimed at by me can be attained 'by mechanical devices different in structure from those hereinbefore described. I do not therefore limit myself to the particular instrumentalities herein shown and specified by me in illustration of my invention', but

What I claim, and desire to secure by Letters Patent, is as follows:

1. In combination with the spindle driving and feed mechanisms, the pivoted springcontrolled shipping-lever, engaging at one end the clutch of the spindledriving mechanism and provided with an incline at its other end to act on the feed-roll stand, and the movable drop-wire head, acting, when in operative position, to latch the lever in a position'in which both spindle and feed are in gear with their drivers, substantially as and for the purposes hereinbefore set forth. A

2. The spindle-driving and the feed mech- IOO To facilitate this readjustment of the IIO anism and the spring-controlled shipping-lever, provided with a handleand engaging said spindle'driving and feed mechanisms, substantially as described, in combination with 5 the revolving stop-motion cam, the drop-wires,

and the movable drop-wire head, formed to engage and latch the lever, and provided with a spring to move it in a direction opposite to that in which it is moved by the revolving 1o cam, substantially as and for the purposes hereinbefore set forth.

3. The combination, with the spindle-driving and feed mechanisms, the drop-Wire head, drop-wires, and stop-motion cam, of the horizontal spring-con trolled shipping-lever, en gag- 15 ing with one end the clutch of the spindledriving mechanism, and with the other the feed mechanism and when released operating laterally upon the drop-Wire head to force the same out 0f range .of the stop-motion cam, subzo stantially as hereinbefore shown and described.

In testimony whereof I have hereunto set my hand this 24th day of October, 1881.

JAMES S. UTLEY.

' Witnesses:

J oHN F. GRAHAM, OHAs. E. RUSSELL.