US851905A - Automatic shuttle-changing loom with sliding front plate for the shuttle box. - Google Patents

Description

PATENTED APR. 30

E. s. STIMPSON. AUTOMATIC SHUTTLE CHANGING LOOM WITH SLIDING FRONT PLATE FOR THE SHUTTLE BOX.

APPLIGATION FILED MAB. 8.1906.

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v No. 851.905. I I PATENTED APR. 30, 1907.

E. s. STIMPSON.

AUTOMATIC SHUTTLE CHANGING LOOM WITH SLIDING FRONT PLATE FOR THE SHUTTLE BOX.

APPLICATION FILED MAR. 8.1906.

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UNiTnn STATES TATTTNT oriricn EDWARD S. STIMPSON, OF HOPEDALE, MASSACHUSETTS,

ASSIGNOR TO DRAPER COMPANY, OF PORTLAND, MAINE, A CORPORATION OF MAINE.

AUTOMATIC SHUTTLE-CHANGING LOOM WITH SLIDING FRONT PLATE FOR THE SHUTTLE-BOX.

ire/851,905.

Specification of Letters Patent.

fatented April 30, 1907.

Application filed March 8. 1906. Serial No. 304,852.

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Be it known that I, ED\VARI) S. STDIPSON, of Hopedale, in the county of Worcester and State of Massachusetts, have invented certain new and useful Improvements in Automatic Shuttle-Changing Looms with Sliding Front-Plates for the Shuttle-Boxes, of which the following is a specification.

In an omatic weftreplenishing looms wherein the weft replenishment is accom plished by discharging the spent shuttle and inserting a fresh shuttle, it is a custon'iary plan tomove the front-plate of the shuttleboX at the supply side of the loom upwardly so as to permit the insertion of the fresh shuttle by a substantially horizontal move ment into the then open shuttle-box; and, after the fresh shuttle has thus been put into place, the front-plate descends into normal position, thus closing the shuttle-box, and the fresh shuttle is then in position to proceed with the weaving operations. In such looms, the fresh shuttle may not be inserted accurately into place on the race-plate of the lay and this defective position of the shuttle is enhanced in case the usual rear binder is being pressed forwardly by its usual spring at the time the fresh shuttle is inserted.

The object of the present invention is to enable the front-platc of the shuttle-box to properly descend into place in case the fresh shuttle is not accurately located on the raceplate of the lay and at the same time to force the shuttle into its proper position ready to be picked through the shed.

In carrying out the object of this invention, the front-plate is mounted on a frame which slides in inclined guideways so that when the front-plate is moved away from the raceplate of the lay to admit the fresh shuttle, it also moves forwardly, thus leaving a larger space between its rear face and the opposite rear wall of the shuttle-box for the reception of the fresh sh ttle and to compensate for possible mi acement thereof on the raceplate. Then, when the. front-plate resumes its normal position, it moves backwardly, thus forcing the inserted shuttle into proper place on the lay.

The present improvements are illustrated in the accompanying drawings, in which Figure 1, is a side View of one end of the lay and of so much of a loom as is necessary for an understanding of the present invention. Fig. 2, is a vertical cross-section of the shuttle-box of the lay. Fig. 3, is a rear view partly in section of the guides and frame of the front-plate, and showing their relation to the lay.

A, is the lay; B, the front-plate at the supply side of the loom; C, the rear wall of the shuttle-box, illustrated as being constituted by a usual forwardly spring-pressed binder; and I), is the top-plate of the shuttle-box. The front-plate B, is secured to two for wardly projecting arms E, of the sliding frame F. This sliding frame has hubs (1, which slide on two guide rods II, II, which are fixed to brackets I, J, secured to the lay. These rods H, furnish an inclined guideway for the front-plate frame F. As shown, the inclined guideway thus formed inclines for wardly and upwardly from the top of the race-plate IQ, of the lay. It will thus be evident that when the front-plate is lifted from the race-plate, it will at the same time be moved forwardly away from the binder (l; and, on the other hand, when the front-plate descends, it will also move bzwkwardly toward the binder. Fig. 1, of the drawings shows the front-plate in its normal descended position resting on the front-plate. The front-plate is raised above the position shown in Fig. 2, so as to allow the fresh. shuttle (indicated at L), to be inserted horizontally beneath it. Fig. 2, shows the front-plate so far descended as to have itslower edge just below the upper edge of the shuttle. It will be evident from an inspection of this figure that during the further descent of the frontplate it will force the shuttle lnwkwardly against the binder and into proper position in .line with the picker so that its first [light through the shed will be true.

As shown, the front-plate is restored to its closed position and. is normally maintained in such position by means of springs M, each of which surrounds one of the guide rods IT, and which bears at opposite ends against one of the upper fixed brackets I, and one of the hubs G, of the frame. The front-plate may be elevated and moved forwardly by any appropriate means-known in the art. In Fig. 1, there is illustrated a usual change shaft N, which is set into rotation when a change of shuttles is to be effected. This change shaft carries a cam O, which acts upon a lever P, pivoted at Q, the forward end of said lever being connected by a link R, with a stud S, on the frame F. At the appropriate period in the rotation of the change shaft, the cam O, through the intermediate connections, elevates and moves forward the front-plate. After the fresh shuttle has been inserted, the high part of the cam 0, passes and the springs M, restore the front-plate to its normal position. The closing springs M, are employed because, should the shuttle be so badly displaced as not to permit the descent of the front-plate, the springs will be maintained stretched Without damage either to the shuttle or to the front-plate.

I claim, l

1. An automatic shuttle-changing loom l having, in combination, a front-plate for the shuttle-box at the supply side of the loom mounted in inclined guide'ways so that when inclined guideways at the supply side of the loom, the inclination of said guideways being upwardly and forwardly from the race-plate of the lay, a frame mounted to slide in said guidev 'ays, a front-plate for the shuttle-box carried by and moving with said frame, and means for moving said frame in both directions.

In Witness whereof, I have hereunto signed my name in the presence of tWo subscribing Witnesses.

EDWARD S. STIMPSON.

\Vitnesses GEORGE Orrs DRAPER, Ermnsr W. Woon.

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