US695982A - Weft stop-motion for narrow-ware looms. - Google Patents

Description

Patented Mar. 25, I902.

F. B. WILKINS.

WEFT STOP MOTION FOR NARROW WARE LOOMS.

(Application filed Nov. 22, 1901.)

(No Model.)

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W itnesses.

Attorney;

'1 OFFICE.

FRED B. \VILKINS, OF WOONSOOKET, RHODE ISLAND.

WEE-"T STOP-MOTlON FOR NARROVV-WARE LOOIVIS.

SPEUIFIGATION forming part of Letters Patent N 0. 695,982, dated March 25, 1 902. Application filed November 22, 1901. serial No. 83,264. (No model.)

To all whom, it may concern..-

Be it known thatI, FRED B.WILKINs, a resident of the city of W'oonsocket, in the county of Providence and Stateof Rhode Island,- have invented certain new and useful Improvements in Weft Stop-Motions for Narrow-WVare Looms; 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 weft stop-motions for narrow-ware looms used for weaving tapes, ribbons, and other like fabric. It is fully described and illustrated in this specification and the annexed drawings.

Figure 1 represents a top View of the device attached to a part of the breast-beam of a loom with a shuttle passing. Fig. 2 shows an elevation of the device on the breast-beam in section with the parts connecting the stop-m 0- tion with the shipper-bar that casts off the belt. Fig. 3 is a part of the breast-beam from the inner side.

The construction and operation of the invention are as follows:

A represents part of a breast-beam of a loom.

C is a plate arranged to slide under a plate J, made fast on the top of the breast-beam A.

This plate 0 extends when clear in so as nearly to touch the reed when it heats up the filling and has a square hole T in it near its inner nd. A leverD pivots in a stud extending down from the under side of the sliding plate 0 (see Fig. 2) and has on the upper side of the inner end a number of thin plates g, placed side by side,-with a narrow space between them. These plates are so placed as to stand with their upper ends in the hole T in the plate 0, so as to bear up against the woven tape as it passes over it in the process of weaving.

A small shaft F is placed just under the breast-beam A and held at each end in bearings in the end frames of the loom. A hub G, held loosely on this shaft, has two arms or levers M and V extending from it in toward the lathe K, (see Fig. 2,) and the lower one of these levers M holds the dagger N,which is arranged to be held up so that its end will not be struck by the hunter P on the lathe K, when the plates 9 are prevented from rising in the-hole 'l by the woven tape web 0 passing over them, the dagger N being held up by the wire R, which connects it with the outer end of the plate-leverD. The other lever Von the same hub G has a roll on the stud r on its inner end arranged to stand over the lever E, that holds the end of the shipper H in a notch 70, made in its upperside, so that when the dagger N is allowed to drop, so as to be struck by the hunter]? in beating up, the roll 1' will push down the leverE, as shown by the dotted lines, and release the end ll of the shipper, so that it will spring inward and by throwing off the belt stop the loom.

The plate J is preferably a piece of angleiron that extends across the top of the breastbeam A and'down on its front to hold the parts of the beam in line, as it is parted here and a Vacant space left (see Fig. 3) to allow the lever D on the sliding plate to fall back without striking the breast-beam. A hole a is made through the front of the angle-iron to receive the sliding plate 0, (see Fig. 8,) and ways are attached to the under side from the hole 72 to support the sliding plate 0. A notch a is made in one side of the slidingplate 0, and a spring-detent b is placed on one side (see Fig. 1) Where the angle-iron is broken away, so as to spring into the notch and prevent the plate from moving back too easily.

The object of allowing the plate 0 to slide back is to avoid smashing the shuttle S when it happens to stop in front of the plate 0, as the peculiar shape of the shuttles used in the narrow-ware looms makes it incapable of withstanding a blow on the front.

In loomsofthis class, because of the shape of the shuttles and their limited motion, it is not found feasible to apply the well-known weft stop-motion used on wide looms, that stop the loom instantly when the fillingthread breaks or runs out, and the users are satisfied if they can stop the loom before it has run many picks after the failure of the filling. This idea of a stop-motion has been tried and found to work well, as it will be readily seen that so long as the filling-thread is intact and .the warp as it passes over the hole T in the plate 0 has the filling-thread in by the dotted lines and free the end of the shipper H from the notch 70, so it will spring back and throw olf the driving-belt and stop the loom.

Having thus described my improvements, what I claim as my invention, and desire to secure by Letters Patent, is-- 1. In a narrow-Ware loom the combination of a narrow plate held to slide in ways on the top of the breast-beam and having a hole in r it near its inner end, a notch in said plate, a spring-detent to enter said notch in the plate and detain it in normal position, a lever held on a pivot in a stud on the under side of said plate, thin vertical plates held on the top of the inner end of said lever and under the hole in said narrow plate, and means for connecting said lever with the belt-shipper, substantially as described.

2. In a narrow-ware loom, a plate held on the top of the breast-beam extending nearly to the reed when beating up and having a hole in it near its inner end, in combination with a horizontal lever held on a pivot on its under side and having thin Vertical plates on the upper side of its inner end, a knee-lever held to swing on a shaft under the breastbeam and having a dagger in the end of one arm and a stud in the end of the other arm, a lever holding the belt-shipper and arranged to be struck by said stud, a connecting-link between said dagger and the horizontal lever, substantially as described.

In testimony whereof I have hereunto set my hand this 15th day of November, A. D. 1901.

FRED B. WILKINS.

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