US1036699A - Loom-shuttle. - Google Patents

Description

G. G. PETZOLD.

LOOM SHUTTLE.

APPLICATION FILED FEB. 2, 1911.

1,036,699, Patented Augz 27, 1912.

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CHARLES G. PETZOLD, 0F PROVIDENCE, RHODE ISLAND.

LOOM-SHUTTLE.

Specification of Letters Patent.

Patented Aug. 27, 1912.

Application filed February 2, 1911. Serial No. 606,074.

To all whom it may concern:

Be it known that 1, CHARLES G. PETZOLD, a citizen of the United States, residing at Providence, county of Providence, State of Rhode Island, have invented an Improve ment in Loom-Shuttles, of which the following description, in connection with the accomp-anying drawing, is a specification, like letters on the drawing representing like parts. 7

This invention relates to shuttles for looms and has for its object to provide a novel shuttle provided with means forv detecting the presence of a knot or slub in the yarn and breaking the yarn if a knot is found therein so that the shuttle-changing or loom-stopping mechanism which is ordinarily brought into play upon the breaking of the yarn will operate to change the filling or stop the loom as the case may be, and also to provide a simple arrangement by which the yarn will be broken, thus calling into play the loom-stopping or fillingchanging mechanism whenever a float occurs or whenever the shed is not properly formed so that the warp threads bind on the shuttle.

The features wherein the invention resides will be more fully hereinafter described and then pointed out in the appended claims.

In the drawings wherein I haveillustrated a selected embodiment of my invention which is sufficient to show the principle thereof, Figure 1 is a plan view of the tln'ead-delivery end of the shuttle showing the improvements; Fig. 2 is a section on the line 00-00, Fig. 1; Fig. 3 is a side view of the slub or knot detecting plate and the fioat detector detached from the shuttle.

The shuttle body is shown at 1 and the end of the spindle on which the yarn 3 is wound is shown at 2. The yarn is delivered from the shuttle through a shuttle eye 4 of some suitable or usual construction. These elements are such as are commonly found in shuttles and form no part of the present invention.

My improvements consist of a knot or slub detecting plate 5 which is set into the shuttle to extend across the bobbin-receiving chamber 6 adjacent the thread-delivery eye 4. This plate may be held in the shuttle in any suitable way and I have herein shown the edges of it as fitting in the grooves 7 formed in the sides of the shuttle and as held from vertical movement by means of a cross pin 8 which extends across the shuttle and engages the lip or flange 9 at the bottom of the plate 5. This plate is provided with the narrow slot 10 through which the yarn 3 passes, said slot being of a width to freely admit the yarn provided the latter is perfectly smooth and free from knots, but being so narrow as to prevent'a knot or slub from being drawn through. Asa result if a knot occurs in the yarn, the said knot will catch on the plate 5 and the yarn will be broken, thus calling into play the usual fillingreplenishing or loom-stopping mechanism which are rendered operative whenever the filling does break or becomes exhausted. I have shown the slot 10 as having a widened mouth 11 to facilitate the threading up of the shuttle. Associated with this plate 5 is a device for severing the thread whenever a fioat'occurs, or whenever the shed is not properly formed. This device comprises a lever 12 pivoted to the plat-e at 13 and having a yarn-severing finger 141 which overlies the plate 5 and is adapted to swing across the slot 10 therein, as shown in dotted lines Fig, 2. The lever 12 is also provided with a finger 15 which extends at right angles to the plate 5 and adjacent the upper edge 16 of the shuttle body. The lever is normally held in the full line position Fig. 2, by means of a spring 17 or some other suitable device, and when in this position the finger 14 is at one side of the slot 10 and the finger 15 is above the level of the top of the shuttle. If during the weaving operation the shed is not properly formed so that the warp threads press on the upper side of the shuttle during its flight, the engagement of these warp threads with the arm 15 will swing the latter downwardly into the dotted line position, thus moving the finger 1 1 across the slot 12 and thereby breaking or severing the yarn 3 as will be obvious. During this operation the finger 1 1 and the edge of the slot 10 act somewhat as a pair of shears for cutting or breaking the yarn. As soon as the yarn is broken, the usual weftdetecting mechanism comes into play to either set in operation the filling-replenishing mechanism or loom-stopping mechanism as the case may be.

It will be observed that my device is very simple and can be readily applied to any shuttle.

Various changesin the construction of the parts may be made without departing from the invention. g y y Having fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a shuttle, the combination with a shuttle body having .a bobbin-receiving chamber and a delivery eye, of a plate eX- tending transversely across the end of the bobbin-receiving chamber and provided with a slot of suflicient width to receive freely yarn which is free from knots but of insufiicient width to permit knots to pass therethrough, a yarn-breaking member pivoted to said plate to swing parallel thereto, and means to actuatesaid member to break the yarn on the occurrence of a float. 2. In a shuttle the combination with a shuttle body having a bobbin-receiving chamber and a delivery eye, of a plate extending transversely across the end of the bobbin chamber and provided with a slot i name to this specification, in the presence of through which the yarn passes, a yarnbreaking member pivoted to said plate to swing arallel thereto and havin a finger extending therefrom in the direction of the a length of the shuttle and occupying a posit-ion normally slightly above the side of the I shuttleso that if the warp threads bind on the shuttle they will press said finger and swing the yarn-breaking member across the slot thereby to break the yarn.

. 3. In; a shuttle, the combination with a shuttle body having a bobbin-receiving chamber, and a delivery eye of a plate extending traversely across the end of the bobbin chamber and provided with a slot through which the yarn passes, a yarnbreaking member pivoted to said plate at the upperedge thereof adjacent said slot, said member having. a portion extending laterally therefrom, and a finger extending from the end of said lateral portion in the direction of the length of the shuttle and occupy- 7 ing a position slightly above the side of the shuttle, so that if the warp threads bind on the shuttle they will press said finger outjwardly {breaking member across the slot to break the yarn.

and thereby swing the yarn- In testimony whereofpl have signed my G. PETZOLD.

Copies of this patent may be obtained for five centsea'ch; by addressing the Commissioner of Patents,

Washington, D. 0.? I

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