US154745A - Improvement in looms for weaving tape - Google Patents

Description

v 3Sheets--Sheet1. C. H. CHAPMAN.

Looms for Weaving Tape;

N0.l54,745. u Patented Sept.8,18 74.

- J WITNESSES INVENTOR THE GRAPHIC CO.PHOT0'LITH.398- 44 PARK PLACE, N.Y.

1 3Sheets--Sheet3. B. H. GHAPMAN.

Looms for'we aving Tape.

N0.154,745; PatentedSept.8,1874.

V\E I k l f WITNESSES, 'INVENTORH m2 GRAPHIC c0.PHOYo-uTH.39&4l Him PLACE,N.Y.

. of the harness-frames.

STATES P TENT Orricn.

1 7 1 cHAn ns' n. CHAPMAN, orlsnnannv, MASSACHUSETTS.

IMPROVEMENT m Looms FOR wEAvlNe TAPE.

S pecification forming part of Letters Patent No. 154,745, dated September 8, 1874'; application filed September 29, 1873.

"To all whom it may concern:

new and useful Improvements in Machines forWeaving Tape, of which the following is a specification My invention consists in a series of devices for weaving tape, the nature of which can be best understood by reference to the specification and drawings.

is a vertical section of the same. Fig. 3 is a detail plan showing part of the tape, the weft rod or needle, the shuttle, and their immediate adjuncts. Fig.4 is'an elevation of the parts shown in Fig. 3. Fig. 5 is an elevation showing the device for governing the throw Fig. 6 is an elevation showing, in detail, part of the shipping device or stop-motion.

A- B represent the frame, to which the other parts of the machine are attached. U, Figs. 1 and 2, is the warp-roller, U being the warp. This warp passes through the harness-frame N, reeds M and over the breast-beam U then around and between the rolls V, and onto the reel V, Fig. 2. Besides the warp-threads U I have another warp-thread, E Fig. 3, one end of which is connected to the shuttle S, Fig. 3. The other end passes over with the other warp-threads, and is connected to the reel V The function of the warp or shuttle thread E is to form a stitch with the weftthread E, and thus constitute one of the selvage-edges of the tape, the other selvage-edge being formed by the usual weaving process.

The weft-thread E is on the spool E, which is located under the front part of the frame, (see Fig. 1,) from which it passes through the guidehole E Fig. 1, to the tension device E, Fig. 1; thence through the guides F and D Fig. 4, to the spring take-up F, from which it passes back to the eye D inthe heel of the weft-rod D thence to the hole or eye at D in the end of the weft-rod, (see Figs. 1 and 4,) from which point it passes to the woven tape. The shuttle S is moved backward and forward by the slide K, operated by the pitman K crank 0 shaft 0, gears 0 O shaft and drivingpulley C The slide K (see Fig. 3) has a pro- Figure 1 is.a plan of my machine. Fig. 2-

' 1 jecting arm, K which engages with the rear Be it known that 1, CHARLES HJOHAPMAN, i of Shirley, in the county of Middlesex and: 'State of Massachusetts, have invented certain of the shuttle, and presses it forward; also, an arm, KflFigs. 2 and 3, having a lever, K Fig. 2, the lower end of which is held-in position by a spring, so as to operate against the front endof the shuttle and cause it to move back. To take the shuttle out of the race,-the lever K can be turned up so as to allow the removal of the shuttle. The weft-rod D is operated by the pitman D lever D, and cam 0 Fig. 1. The end D of the weft-rod (see Fig. 4') has anupward projection,'as shown, by which the weft-thread is held above the rod at the point where the shuttle passes, so that the point of the shuttle 'is sure to pass under the thread. Motion is communicated to the reed M? through the rocker-shaft M Fig. 2, lever M, and cam L on the shaft 0 Fig. 2. Motion is communicated to the harness-frames N by means of the connections N N N and R and levers" R and rocking cams R, each frame having a rocking cam, R, to operate it.

These rocking cams R are hung on the shaft N Fig. 2, and are free to oscillate on the same. The shaft N Figs. 2 and 5, is caused to revolve by a worm-gear, N N Fig. 1, which receives motion from the main shaft 0 Fig. 1. N Fig. 5, and N are two cam-wheels, which are fastened to and revolve with the shaft N, Fig. 4:. P is a rocking frame, swinging about the shaft N to which motion is communicated by the arm P operated by the cam P on the shaft G so that, when the lever is in motion, P is constantly vibrating back and forth. P is a pawl attached to P, and arranged to operate the rocking cam B, so that as P vibrates it will throw the cam forward, thereby lifting the arm R and, through R N giving motion to the harnessframe. The pawl P has a small pin, P projecting from it, and extending over the periphery of the cam N", and, as the cam N revolves, the high parts of the same will come in contact with the pin P and lift the pawl 1? up, so that it will not come in contact with the notch in the cam R, and, consequently, the harness-frame to which it belongs will remain stationary. The frame Q, pawl Q pin Q and cam N are arranged to operate on another rocking cam, similar to R, for the purpose of operating another harness-frame or sets of frames. The

number of these devices for operating the harness-frames will depend upon the character of the work to be produced. The belt-shipping device shown in Figs. 1 and 2 consists of a belt-fork spring-lever, T and vertical rod T", which is bent at its upper end, so as to.

form a handle, T, as shown in Figs. 1 and 6; and upon the shaft T I fix a holding-lever, T which is caught by a latch, T, Fig. 1. This device is to prevent the belt-shipper from springing back and throwing the belt onto the loose pulley C.

When the loom is in motion, and it is desirable to throw the belt off, and thus stop the loom, it is only necessary to push the latch T out of contact with the lever T in which case the shipper will fly back, and the machine stop.

In Figs. 1, 2, and 6, I 'show an automatic device for throwing 011' the latch T and thus stopping the loom, when, from any cause, the filling-thread is not woven into the warp. This device consists of a lever, T, (see Fig. 2,) the upper end of which rests upon the woven tape. Immediately under the point of the feeler'lever T a hole is made in the breastbeam, which is covered by the tape, the tape preventing the point of the lever fromgoing into the hole, which it would otherwise do, being impelled by the spring t.- Now, if the warp is unfilled, and the machine continues to run, the warp-threads alone will not be suflicient to prevent the pointof the feeler-lever T from falling into the hole' in the breast-beam. When this takes place, the opposite end T of the lever rises up, taking with it the bent lever T T, Fig. 6. This bent lever T T is fastened to the rear of the latch T Figs. 1 and 6. If this bent lever T T is moved by the action of the feeler-lever T T, so as to come opposite the rod K (see Figs. 3 and 6,) then, as the shuttle-carrier K advances, K (see Figs. 3 and 6) will hit the lever T Figs. 3 and 6, and push it outward, carrying with it the latch T and thus releasing the shipperholder T and stopping the loom.

The thread-guide F and take-up F, Fig. 4, are attached to the weft-rod D, Fig. 1, so that they move with it, and thus greatly lessen the sudden tension on the thread.

I claim as my invention- 1. The combination of the feeler-lever T, the

CHARLES H. CHAPMAN. Witnesses:

WILLIAM EDsoN, FRANK G. PARKER.

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