US675476A - Stop-motion for spinning-machines. - Google Patents

Description

Nu. $75,476. Patented June 4, I901.

F. HAGGAS, SR.

STOP MOTION FOR SPINNING MACHINES.

(Application filed May 1, 1900.)

(No Model.) 3 Sheets-Sheet t.

R I J z i Witnesses-[E H "H Inventor. 5-

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N0. $75,476. Patented June 4, 190i. F. HAGGAS, SR.

STOP MOTION FOR SPINNING MACHINES.

(Application-filed May 1, 1900.)

(N0 Model.)

3 Sheets8heet 2.

Witnesses. I nventor.

WJ MQL Attorney-7 No. 675,476. Patented June 4, 190i. F. HAGGAS, 8n. STOP MOTION FOR SPINNING MACHINES.

(Application filed m 1, 1900.)

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Attorneydfl k m w m J 8 w a e E .w 0 10 m; I 1@ y W S UNlTED STATES PATENT OFFICE.

FRED I'IAGGAS, SR., OF PROVIDENCE, RI-IODE ISLAND.

STOP-MOTION FOR SPlNNlNG-MAGHINES.

SPECIFICATION forming part of Letters Patent No. 675,476, dated June 4, 1901.

Application filed May 1, 1900. Serial No- 15,036. (No model.)

.To all whmn it may concern.-

Be it known that I, FRED HAGG-AS, Sr., of Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Stop-Motions for Spinning-Machines; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

This invention relates to the class of stopmotions used on spinning-frames, twisters, and like machines.

The object of the invention is to produce a stop-motion that will operate to stop the machine if the belt that drives that part of the mechanism that governs the laying of the thread on the cop or bobbin breaks or runs off of the pulleys and also to stop the machine when the bobbins are ready to doff.

Figure 1 is a front elevation of a part of a spinning-frame, showing the devices used in the stop-motion. Fig. 2 shows an end view of the machine, mainly of the parts connected with the stop-motion. Fig. 3 is an enlarged top view of a part of the stop-motion mechanism. Fig. t is a side view of a part of the starting and stopping mechanism of the ma-. chine. Fig. 5 is an enlarged view of the upper portion of the release motion. Fig. 6 shows a part of the lower belt and cast-off. Fig. 7 shows the details, enlarged, of the parts that govern the stop-motion with regard to stopping to doff the bobbins.

In the drawings, A A denote the end frames of the machine.

0 is the band-cylinder, held on the shaft F, which runs in hearings in the end frames.

13 indicates the driving-pulleys, fast on one end of the shaft F, and G is the belt that runs the machine.

H is the shipper-rod, with the belt-guide H on its outer end.

D is the ring or cop rail, according to the make of the machine, that governs the laying of the thread on the cop or bobbin L. A rising-and-falling motion is given to this rail D through the vertical rods T T and the chains y 3 which connect the rods to the horizontal bar S. The bar S has a hollow bracket 7; bolted on its end, (see Fig. 7,) which has a screw-thread made in one end, into which the rod S is fitted to screw, and this rod extends out through the end frame A and has a hand wheel 0 made fast on its end.

An upright lever V is held on a stud g in a stand made fast to the floor. This lever V extends up beyond the end of the hollow bracket 7c and has a stand Y, carryinga friction-roll attached to the side of the lever. Another lever V, held to swing on a pivot, hangs down one side of the friction-roll on the lever V and has a friction-roll .9 held on the opposite side that bears against the cam 12, that is held on the cross-shaft N. The crossshaft N is moved by a worm-gear N, fast on it, that engages in a worm P, held on a short shaft 0, that extends through the end frame in a long bearing P fast to the end frame. The outer end of the shaft 1) has a gear 1; fast on it, that engages with a gear 61, fast on a sleeve d, held to turn on a stud w, also fast in the end frame. A pulley g is made fast on the outer end of the sleeve d and is connected by a belt R to a small pulleyf, fast on one end of the cylinder-shaft F. In this way mo tion is conveyed from the shaft F through the cam b to the bar S and the rail D.

The usual starting and stopping of the machine is done through the shipper-rod H,which has the beltguide H on its outer end and a short arm a, having a hole with a screw-thread in it on its inner end. A screw-shaft J, having one bearing in the end frame and another bearing in a standard 0, attached to the end frame, has a screw-thread made on it that fits in the thread in the arm a. The outer end of the shaft J has a hand-wheel 0' made fast on it, by turning Which the shipper-rod H can be moved endwise either way to move the belt G to start or stop the machine.

A notch c is made in the end of the arm a (see Fig. 4:) and a projection i made on the end of the collar J, fast on the screw-shaft J, to catch in the notch c when the arm a is nearly to the hub to stop the shaft J before the arm a is jammed against the collar J. A small gear a is held on the shaft J near the frame (see Fig. 4) and a larger gear 0", held on a stud 1 fast in the end frame, engages with it. This larger gear 0 has a bevel-gear h fast on its outside, which engages with a bevel-gear 0, held loosely on a vertical shaft K. The shaft K is held to turn and slide in stands 01. a, fast on the end frame.

As before stated, one object of the stop-motion is to prevent the breaking or running off of the belt R from spoiling the cop by winding the thread in a ridge. The way this is done is this-'a lever e, (see Fig. 5,) pivoted to the end frame, has a cam j secured near its outer end and a small arm t projects out from the cam j and rests lightly against the belt B when that belt is in place. (See Figs. and 6.) The lower end of the vertical shaft K rests on a lever that has its free end resting on the face of the camj and is held up by the cam so long as the cam is held up by the arm 15, resting against the belt R. While the shaft K is held in this way, the worm-gear 0, fast on it, will be held up from engaging with the worm 0, fast on the cylinder-shaft F; but if the belt R breaks or is thrown off the pulleys the cam j and arm will turn over from their own weight and allow the shaft K to drop and bring the worm-gear 0 into gear with worm c, which will put the shaft K in motion, and when that shaft drops a pin it in its upper end (see Fig. 3) drops into one of the slots 1' in the top of the gear 'I', which starts that gear and the gear h, that is in gear with it, which by means of the gear r, attached to it, starts the gear a, and the screw shaft J and screws the driving-belt by means of the shipper-rod onto the loose pulley and stops the machine.

To provide for the stopping of the machine when the bobbins are ready to doff, a short shaft T, held in a bearing in the end frame A, has a worm-gear 'm made fast on its inner end that engages in a worm S, fast on the cam-shaft N. (See Fig. 7.) A gear m, fast on the outer end of the shaft T, is connected by a pair of change-gears 1 2 with a gear 3, held to slide on and turn with the rod S by means of a spline in the rod and a slot in the gear 3. A rocker-shaft R is held in bearings on the end frame A and has a vertical arm P loose on it, which has a pin W in it, that strikes a pin in a collar w, fast on the shaft. A dog d is pivoted to the upper end of the arm P, close to the rod S, and a collar Z is held adjustable on the rod S bymeans of a set-screw to operate the arm P when the worm s and train of gears m, m, 1, 2, and 3 have unscrewed the rod S far enough out of the socket is to bring the collar Z against the arm P when the bar S is let down by the cam b. When the collar Z has pushed the arm P over far enough to trip the dog (1, (see Fig. 7,) by pushing it against the set-screw F, in a bracket fast on the end frame A, the vertical arm of the knee-lever g, fast on the same shaft, (see Fig. 2,) will have the hook e on its upper end pushed into the position of the dotted lines in Fig. 5, and at the next outward movement of the rod S the collar Z will strike the end of the forked dog d and push the arm P over to the dotted lines in Fig. 7, which will turn the shaft R and arm g and throw the hook e off of the end of the lever e and let the cam j drop, which will let the shaft K down and stop the machine in the same manner as described when the belt R slips off of the pulleyf.

When the machine has stopped automatically to doff, the rod S is screwed back into the hollow bracket by means of the handwheel 0 until the pin in the collar Z brings up against the pin Z in the lever V, when the machine is readyto start again.

To give the casting-off mechanism an easy start and avoid a shock when the shaft K drops the worm-gear 0" into engagement with the worm 0', that gear is held loose on the shaft and is connected with a collar 0 fast on the shaft K, by a stiff spiral spring 0 which has one end fast to the gear and the other end fast in the collar 0 and a collar 11, fast on the shaft K just above the worm-gear c", has two prongs t on its under side that engage with two prongs t in the upper side of the gear 0" after the spring 0 has taken the first shock of starting.

To allow the shaft J to screw the belt off automatically and not jam the arm a. hard against the inner bearing, the thread on the shaft is turned off for a short distance from the end, so that the arm a, will stop when it has gone far enough to move the belt off of the fast pulley,- and to provide a check when the belt is turned off by the hand wheel 0 a small shaft n is put in a bearing in the end frame, (see Fig. 4,) having a lever a fast on its outer end, with one end of the lever held under a collar m fast on the shaft K, and a weight W on the other end of the lever. An arm is on the inner end of the shaft 72 and is provided with a flat disk n, that is arranged to lie against the shaft J where the thread is turned off and stop the arm a before it runs off of the thread when turned by hand; but when automatically stopped by the dropping of the shaft K the collar m will tip the shaft over and turn the arm and disk at over out of the way of the arm on and will allow the arm to screw off of the thread before stopping the machine.

A small stop-clip d is bolted on the lever e, that projects into the center of the cam j, (see Fig. 5,) with recesses in the cam to receive it to limit its motion each way, and the arm t is'made up of parts to make it adjustable as may be necessary. (See Fig. 6.)

By reason of the great speed usually given to the band-cylinder, and the increase of that speed by the gears on the stud and screw shaft, the stopping of the machine, when the lower belt fails, is accomplished at once before any damage can be done.

The invention is applicable to spinningframes, twisters, and to most kinds of machines using a reciprocating rail to lay the thread on the cop or bobbin.

Having thus described my improvements, I claim as my invention and desire to secure by Letters Patent- 1. In a spinning-machine the combination IIO with the bar raising the ring or bobbin rail of a socket on said bar, a rod fitted to screw into said socket, a cam-shaft to raise said rail, a train of gears connecting the cam-shaft with a rod to turn it, a stop-motion, a collar fast on said rod to trip the stop-motion mechanism substantially as described to stop the machine when said rod has screwed far enough out of the socket.

2. In a spinning-machine the combination with a bar raising the ring or bobbin rail, of a rod, fitted to screw into a socket on said bar, a train of gears connecting the cam-shaft that raises the rail with said rod to turn it, a collar fast on said rod, a rocker-shaft, an arm held loosely on the rock-shaft and having a pin in its hub, a collar with a pin in it fast on said rock-shaft, a dog pivoted to the upper end of said arm, a knee-lever on said rockshaft, a horizontal lever having one end engaging with the knee-lever, a cam pivoted to the horizontal lever, and mechanism for antomatically throwing off the driving belt, substantially as described.

In testimony whereof I have hereunto set my hand. this 28th day of April, A. D. 1900.

FRED HAGGAS, SR. In presence of BENJ. ARNOLD, E. S. MARsH.

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