US466851A

US466851A - graham

Info

Publication number: US466851A
Authority: US
Publication date: 1892-01-12
Anticipated expiration: 1909-01-12

Description

(No Model.) 2 Sheets-Sheet 1; E. H. GRAHAM. POSITIVE SHUTTLE MOTION FOR L'OOMS.

No. 466,851. Patented Jam 12, 1892.

(No Model.) 2 Sheets-Sheet 2;

E. H. GRAHAM. POSITIVE SHUTTLE MOTION FOR LOOMS.

No. 466,851. Patented-Jan. 12, 1892,.

UNITED STATES PATENT OFFICE.

EDMUND II. GRAHAM, OF BIDDEFORD, MAINE, ASSIGNOR OF ONE-HALF TO LEVI VVOODBURY, OF IVASHINGTON, DISTRICT OF COLUMBIA.

POSITIVE SHUTTLE-MOTION FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 466,851, dated January 12, 1892.

Application filed September 10, 1890, Serial No. 364,507. (No model.)

To all whom, it may concern: on the line 0c of Fig. 4. Fig. 3 shows two Be it known that I, EDMUND II. GRAHAM, a views of the shuttle proper with rolls omitted. citizen of the United States, residing at Bid- Fig. 4 is a front view of one end of the lay. deford, in the county of York and State of Fig. 5 is an elevation of the traveler, showing 5 5 5 Maine, have invented certain new and useful method of attaching it to the chain. Fig. 6'

Improvementsin Positive Shuttle-Motions for is a plan or top view of top of a portion of Looms; and I do hereby declare the followthe lay with the hand-rail removed. Fig. 7 ing to be a full, clear, and exact description represents the opposite end of the lay from of the invention, such as will enable others that shown in Fig. 6, the parts being dupli- 6o to skilled in the art to which it appertains to cated.

make and use the same. A is the frame of the loom; b, the cam- My invention relates to that class of looms shaft; 0, the lay rocker-shaft; D, the lay; cl, having a positive shuttle-motion or a shuttle the lay-sword; r, the reed, and d the handfed by positive mechanism as distinguished rail. These parts areall well-known parts of 15 from looms wherein the shuttle is shotfrom the loom and need no further description.

side to side. In the top of the lay is a longitudinal The object of my present invention is to groove extending the entire length of thelay, improve the construction of that class of posiwhich is elongated at each end to support tive shuttle-motion looms wherein the shutshuttle-operating mechanism hereinafter to 2o tle-driver is moved by an endless chain, to be described. A traveler or slide 6 is adaptwhich it is connected by a link. In these ed to run in this groove on guide 6. The looms as hitherto constructed the sprocket-. traveler is reciprocated by means of an endwheels at the ends of the lay were of small less band or sprocket-chain F, which extends diameter and the channel in Which the chain through the groove in the laybelow the guide 2 5 ran was the same width as the sprocket-wheel, e. The chain F passes around sprocketthereby making the upper part of the lay wide wheels E, one of which is located at each end and heavy. In myloomI narrow up thechanof the lay. In the drawings I have shown nel in which the chain runs, increasing the but one end of the lay; but the opposite end diameter of the sprocket-wheels, and I conis a duplicate .of the end shown. Two guide- 0 o fine the chain within its channel by means of wheels E are provided, one on each side of guide-wheels. the chain near the sprocketwheel, by which A further object of my invention is to prothe chain is confined within the narrow limvide guides on which the shuttle can run its of the groove. These wheels are pivoted which shall be independent of the reed and to studs on cross-pieces 6 which are bolted 3 5 which shall yet allow the threads of the warp to the under side of the lay. The traveler to pass through. This I accomplish by seis connected with the chain by means of a curing two rails to the lay directly in front of link l, (see Fig. 5,) which is pivoted to a stud the reed, one above and one below, and havin one of the links and to a stud Z, projecting pins projected from the edges of the said ing from the under side of the traveler. o rails on which the grooved wheels of the shut- Motion is imparted to the shuttle f by tle may run, but which will allow the warpmeans of an anti-friction wheel or truck (2 threads to pass. which is pivoted to the traveler. The shuttle f I have illustrated in the accompanying is mounted on grooved rolls f f f f the first v drawings a loom having my shuttle-motion two above and the others below. The upper 5 in the form which I prefer to use, although I rolls f run on the guide-pins of the guidedo not wish to limit myself to the exact (le rail g, which pins g fit the grooves of the tails herein shown. rolls, and the lower rolls run on a similar In the drawings, Figure 1 represents the line of pins fixed in the guide-rail g. The

end view of a loom or so much thereof as is roll c which is pivoted to the traveler, plays 10c 50 necessary to understand my invention. Fig. between the rolls f of the shuttle and serves 2 is a transverse section of a part of the loom to impart the motion of the traveler to the tad shuttle. The cop is held on a spindle reinovably attached to the shuttle. The spindle is formed with a hook-shaped end, which is hooked over the pin t",secured to the shuttle-body for this purpose. (See Fig. 3.) The spindle is held in place by means of a spring 2' attached to the shuttle-body and having a curved portion which fits a depression in the hook-shaped end of thespindle directly opposite the pin i. The shuttle is threaded by passing the yarn through the eye 1' The sprocket-wheel E is supported on the upper end of a shaft 0 which is rotated continuously by mechanism which I will now describe. The shaft 0 is journaled in abearing 0 attached to the under side of the lay, and its lower end is stepped in a bearing 0 secured to the end of the rocker; shaft C, which is extended for that purpose. On the lower end of the shaft 0 is a pinion c, which engages a connecting-gear C, which turns loosely on the rocker-shaft. A pinion 5 also engages the gear 0, this pinion being fixed on the lower end of a shaft 12 the upper end of which has a pinion 6 which engages a gear Z2, placed on the end of the cam-shaft. The shaft 6 is journaled in bearings 19 b", bolted to loom-frame. It will thus be seen that the motion of the cam-shaft is transmitted through a train of gearing to the sprocket-wheel E and a continuous motion imparted to the sprocket-chain. The relative size of the gear 17 will determine the speed of the sprocket wheel and chain, and consequently of the shuttle.

The operation of my shuttle-motion is evident from its construction. As already shown, a continuous rotary motion is imparted to the sprocket-chain by which the traveler is moved from end to end of the lay. When it reaches the end, the link travels around the sprocketwheel, leaving the traveler stationary, after which the motion is reversed. Itwill thus be seen that by reason of the continuous motion of operative parts of the device the shuttle may be moved with great rapidity without producing that jar which is occasioned by suddenly reversing the motion of heavy bodies. The traveler and the shuttle are the only parts which are reciprocated, and hence the shock of reversing will be very slight. The threads of the warp as the shuttle traverses the lay will easily pass between the rolls 6 and f the pins 9 allowing them to lie close to the rail and out of reach of the grooves of the rolls.

While guides for the grooved rolls composed of pins allow the warp to lie flat on the rail, I do not wish to limit myself to the use of pins for this purpose, as other forms of guides may be used with good results, dispensing with the pins;

I claim- 1. Ina positive shuttle-motion for looms, a reciprocating shuttle, grooved rolls between which said shuttle is mounted, and guiderails on which said rolls run, provided each with a row of pins adapted to enter the grooves of said rolls, in combination,substantially as shown.

2. In a positive shuttle-motion for looms, a reciprocating traveler, a reciprocating shuttle, grooved rolls on which said shuttle is mounted, guide-rails on which said grooved rolls run, said guide-rails having a row of pins adapted to fit the grooves of said rolls, and an anti-friction roll pivoted to said traveler and adapted to play between two of said grooved rolls and toimpart the motion of said traveler to said shuttle, in combination, sub stantially as shown.

3. In a positive shuttle-motion for looms, the combination of a lay, two guide-rails attached to the said lay, between which guiderails the warp passes, and a reciprocating shuttle mounted on rolls adapted to run between and be guided by said guide-rails, substantially as shown.

In testimony whereof I affix my signature in presence of two witne ses.

EDMUND II. GRAHAM.

IVitnesses:

O. H. LEAVITT, S. W. Runs.