US122745A - Improvement in loom stop-motions and shuttles - Google Patents

Description

w. w. TU'C KER;

Improvement in Loom Shuttles and Stop Mechanism.

Patented Jan. 16, 1872.

Sc Rag a;

ATEN'I FFICE.

WILLIAM W. TUCKER, OF HARTFORD, CONNECTICUT.

IMPROVEMENT IN LOOM STOP=MOTIONS AND SHUTTLES.

Specification forming part of Letters Patent No. 122,745, dated January 16,1872.

SPECIFICATION.

I, WILLIAM W. TUCKER, of Hartford, in the county of Hartford and State of Connecticut, have invented certain new and useful Improvements in Looms, and Shuttles for the same, of which the following is a specification, reference beinghad to the accompanying drawing, in which-- Figure 1 is a view of the loom, certain parts being omitted, the same not being necessary to the understanding of my invention. Fig. 2 is a detached view of one end of the lay bearing one feature of my invention, an end view. Fig. 3 is a rear view of the parts shown in Fig. 2. Fig. 4 is a front view of the parts shown in Figs. 2 and 3. Fig. 5 is a view similar to I that in Fig.2, except that the device is" sprung,

a term that will be definitely defined hereinafter. Fig. 6 is a central vertical longitudinal section of the shuttle.

Like letters indicate like parts in all the figures.

The object and purpose of this invention are the production of a loom which shall cease automatically to operate when the warp-shed becomes imperfect.

The letter A indicates the general frame of the 100111, and B the lay, pivoted within the frame in the usual manner. At either end of the lay are the common shuttle-boxes. The letter C indicates the shuttle, whose construction and operation I will now describe. It is open alongits center as common, and this opening contains the common bobbin, &c. At one side of this openingis attached my improve ment, consisting of the wire spring I), fasten ed to the shuttle at b and its free end caught under the base of the trigger a when the de vice is set. This trigger is made of thin sheet metal, pivoted to the shuttle at 0. Both ends of the base of the trigger are beveled off (from the observer, in Fig. 6,) so that when the top of the trigger is canted to the right or left the spring b will escape over the bevel, and the curved part of the spring will fly up above the top of the shuttle. Such canting of the top of the trigger will take place when the warpshed from any reason becomes imperfect, or if any extraneous matter gets into the warp-shed. At or near near the end of the lay-beam is the double elbow d hung, and free to rotate in the bearing d affixed to the back of the beam, con nected by the connecting-rod 6 with the lever e pivoted at e to the beam. Ordinarily this device is set in the position indicated in Fig. 2, the front end of the double elbow hanging straight down and resting against the stop t. The shuttle ordinarily, and while the curved spring b is held under the base of the trigger, will not interfere with the double elbow d,- but when the warp-shed becomes imperfect and by acting on the trigger allows the curved part of the spring I) to rise, then this spring will strike against the double elbow cl, will carry its front elbow along a little way, and the weight of the long end of the lever 0 will cause the parts to assume the position shown in Fig 5, which is the position I have once before referred to as sprung. This motion of the lever c can be made available to shift the operating belt of the loom from the fixed to the loose pulley, and thus stop the loom, in a variety of ways.

In common looms the belt-shipper is upon the end of a pivoted lever with a spring, so attached to the lever as to hold the belt upon the loose pulley when not otherwise controlled; and the opposite end of the lever is confined against the action of the spring by a hook or latch taking hold upon it. One very feasible way to effect the stopping of the loom by the springing of the device described attached to the end of the lay, is to have this hook or latch attached to the frame of the loom near the front, so that while the lever e is in the position shown in Figs. 1, 2, 3, and 4, its front end, when the lay moves to the front, will pass just under the latch, and will not interfere with it; but when the lever 0 assumes the position shown in Fig. 5, then the front end thereof will be raised high enough to strike against the latch and free the shipper from its hold, which will then immediately transfer the belt to the loose pulley and thus stop the loom.

One great advantage of this stop-motion over others lies in the fact that when a loom is stopped by the other stop-motions it is necessary to examine where the fault lies, whether in the weft or the warp, while the stoppage by this invention always indicates trouble in the warp.

I claim as my invention- 1. In combination with a shuttle, the curved with the tripping mechanism, substantially as spring b and the trigger 0, arranged, constructdescribed, upon the end of the lay, the whole ed, and operating substantially as described, arranged and operated substantially as defor the purpose set forth. scribed, for the purpose set forth.

2. The combination and arrangement, with Dated September 25, 1871. the lay, of the pivoted double elbow d, the con- WILLIAM W. TUCKER. necting-rod e, and thelever e substantially as described, and for the purpose set forth. Witnesses:

3. The combination of a shuttle, having W. E. SIMONDS,

mechanism, substantially as described herein, HUGH OFLAHEBTY. (95)

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