US2267230A - Binder booster for looms - Google Patents

Description

J. B. BELL BINDER BOOSTER FOR LOOMS 2 Sheets-Sheet 1 Filed Sept. 10, 1940 INVENTOR ATTO RNEYS Dec. 23, 1941.

J. B. BELL BINDER BOOSTER FOR LOOMS Filed Sept. 10, 1940 2 Sheets-Sheet 2 ATTORNEYS Patented Dec. 23, 1941 UNITED STATES PATENT OFFICE BINDER BOOSTER FOR LOOMS James Bruce Bell, Seneca, S. 0.

Application September 10, 1940, Serial No. 356,219

4 Claims.

This invention relates to looms and more particularly to an improved provision for controlling the dagger whereby an increase in travel and an acceleration is attained in the movement of the dagger from engagement with the frog, with a corresponding acceleration in its return movement into engagement with the frog.

A further object is to simplify the structure and at the same time make for the ready attachment of the dagger controlling means to the loom and to secure a more positive actuation of the dagger only its controlling means, which, together with the acceleration in the movement of the dagger, permits of an increased speed in the operation of the loom.

With the foregoing and other objects and advantages to be attained, as will hereinafter be more fully described, the invention consists in the general structure and particular parts of a special attachment to be applied as an intermediary between the shuttle binder of the loom and the lever arm extension of the dagger as hereinafter described and defined in the appended claims, reference being had to the accompanying drawings illustrating a practical embodiment of the invention, in which- Figure l is a fragmentary View in rear elevation of the lay and adjacent portion of the sword on which it is mounted together with the applied attachment of the present invention and the associated portions of the shuttle binder and dagger;

Figure 2 is a fragmentary plan view and partial horizontal section on the line 22 of Figure 1; and

Figure 3 is a partial elevation and vertical section on the line 33 of Figure 1.

Referring now to the drawings in detail, the numeral l designates the lay of a conventional loom and the numeral 2 the adjacent portion of e one of the swords on which the lay is mounted. As shown, the sword has a shoulder portion 3 on which the adjacent bottom portion of the lay rests and from this shoulder portion the sword is formed with a fiat, elongated, platelike vertical extension 4 which is secured to the adjacent side face portion of the lay by a bolt 5 which extends throughout the width of the lay and is provided on its screw-threaded end portion with a retaining nut 6.

Located above the lay l is the conventional shuttle binder I, which is usually urged toward the shuttle or inwardly of the shuttle box by the cooperative engagement therewith of a finger or lever arm extension of the dagger and the dagger being either'urged by a spring element or by the overweighting of its portion at the side of its pivotal axis on the protector rod whereby the constant tendency of the dagger is to move toward the frog of the loom, and, by which provision, upon forceful movement of the shuttle binder I outwardly, the dagger is lifted from engagement with the frog.

As shown more clearly in Figure 3, the dagger, designated by the numeral 8, is mounted on a conventional protector rod 9 which is j-ournaled at its opposite ends in bearing brackets l0, one of which is conventionally shown mounted on the front portion of the adjacent sword 2. The beveled free end portion H of the dagger 8, when the shuttle is removed from the shuttle box of the loom, is lowered to a plane as shown in full lines in Figure 3 where it will engage the undercut steel or shoulder member l2 on the upper face of the frog l3, at which time, the regular lever arm extension at the opposite side of the pivotal axis of the dagger is in engagement with the shuttle binder, as hereinbefore described, so that, at this time, the shuttle binder is moved to its inner position which is that shown in full lines in Figure 3. When the shuttle is placed in the shuttle box the binder element 1 is accordingly moved outwardly, and in the conventional loom in which the lever arm extension of the dagger is of an effective length from the axis of the protector rod 9 substantially the same as the length of the dagger, the dagger end I I lifts only a relatively short distance from the frog l3 to clear the steel or shoulder member l2 thereof, and, in any case, the lift of the dagger end is never in excess of the distance that the upper end of the lever extension of the dagger travels with the outward movement of the shuttle binder. Therefore, if the shuttle is not properly placed in the shuttle box or a worn shuttle is used, it sometimes happens that the movement of the shuttle binder is not sufficient to lift the dagger clear of the steel or shoulder member l2 of the frog, thereby preventing operation of the loom until the dagger has by some special means or instrumentality been lifted clear of the frog member f2 and thus causing a delay in the operation of the loom.

The attachment of the present invention has been developed and brought about to overcome the disadvantage just above noted, and the inventive idea is to shorten the lever arm extension of the dagger and to interpose between the shortened arm and the shuttle binder an intermediary in the form of a special lever element which directly engages and is actuated by the shuttle binder and in turn is engaged by the shortened lever arm extension so that said intermediate lever element moves the shortened lever arm extension of the dagger the same distance said intermediate lever element travels when actuated by the shuttle binder and thereby lifts the dagger to a higher plane than is possible under the old system of leverage hereinabove described.

As shown, the dagger 8 is provided with an integral extension I4 rearward of its pivotal axis, on which extension is sleeved a tubular body portion I5 of a shortened lever arm I6, said body portion I5 being secured in longitudinally adjusted position on the extension I4 by setscrews I I. The lever arm I6 is provided at its upper end with a rounded head I8, the inner face portion I9 being convex (see Figure 3), said portion I9 engaging the intermediate lever element 20 to be now described. I

The intermediate lever element 20 is substantially T-shape, having a stem portion 2| which is horizontally disposed and pivotally mounted on a supporting bracket 22, which latter is placed against the outer face of the vertical extension 4 of the sword 2 and secured thereto by being provided with an aperture for the reception of the end portion of the same bolt 5 which secures the lay to the sword and the nut 6 of said bolt 5 being tightened against the outer face of the bracket 22 instead of directly against the sword extension 4 and thereby clamping the sword portion between the bracket and the adjacent side of the lay. The bracket 22 is provided with a bored lug 23 which receives a headed pintle 24 which is inserted downwardly through an alined bore in a corresponding hub portion 25 provided at the end of the stem 2| of said intermediate lever element 20 and secured in place by a cotter pin 26 which is passed through a transverse aperture in the pintle 24 just beneath the lug 23 of the bracket 22.

One arm 2! of the T-head of the lever element 20 is extended upwardly into the path of the end portion of the shuttle binder I which is reduced as at 28 (see Figure 1). The end portion of this arm 21 is provided with a lateral lug 29 which extends toward and engages the rear side of the shuttle binder I, while the opposite arm 3!! of said lever element 20 is reduced in thickness in the region of its lower end, as at 3|, said reduced portion 3| being flattened for a slidable engagement of the convex head portion I9 of the lever arm I5 therewith.

From the foregoing description of the structure as illustrated in the accompanying drawings it is evident that the dagger controlling and operating means of the present invention is readily substituted in place of the conventional means heretofore provided in a loom of the character described, that is to say, it is only required that the longer, heretofore used lever arm, be removed from the dagger extension I4, if such type of dagger element is employed, and substitute in place thereof the shorter lever arm I6 of the present invention, and apply the bracket 22 and lever intermediary 20 carried thereby, it being only necessary to remove the nut 6 on the bolt 5 which holds the lay I to the sword portion 4 and then slide the apertured portion of the bracket 22 over the protruding end of the bolt and replace the nut 6 and tighten the same against the bracket.

By the use of the cooperative: assembly of the elements of the present invention, there are many advantages attained, to wit: first, easy slamming off of the loom is prevented, thus saving supplies; second, it makes possible the running of a slacker shuttle box, thereby decreasing the wear of the shuttles; third, it makes possible the use of a slacker protector rod spring; fourth, the speed of the loom can be increased twenty to thirty picks more per minute; and, fifth, old shuttles that have worn thin can be run a longer length of time due to the boosted lift of the dagger by the multiple leverage provided between the dagger and the shuttle binder. There is a still further and very important advantage in the simplified yet highly practical and efficient device of the present invention in that it can be attached to the loom in approximately five minutes, on the average, and by anyone of ordinary skill.

While the structure illustrated in the drawings embodies a practical adaptation of the invention it is obvious that considerable alteration and modification is possible within the spirit and scope of the invention as defined in the appended claims. The invention, therefore, is not limited to the specific construction and arrangement as shown.

What is claimed is:

1. In a loom, in combination with the shuttle binder and a conventional dagger mounted on and extending forwardly of a conventional protector rod, the dagger and protector rod unitary assembly including a rearward extension swingablein fixed relation to and with the dagger, an upstanding lever arm of shorter length than that of the dagger and the upper end portionof said arm having a rounded contact protuberance at a radial distance from the axis of the protector rod less than the length of the dagger, said lever arm having a base portion longitudinally adjustable on the extension of the dagger and protector rod unitary assembly, a sword, and an intermediary member comprising a substantially T-shaped lever element pivotally mounted at the end of its stem portion to the sword whereby the element is swingable horizontally about a vertical axis, the end portion of the upper arm of the head of said lever element having a lateral lug projected toward and slidably engaging the outer side of the shuttle binder and the end of the opposite arm of the head of said lever element being flattened and receiving in slidable engagement therewith the rounded contact protuberance at the end of the said lever arm carried by the extension of the dagger and protector rod unitary assembly.

2. The herein described controlling means for the dagger of a loom, comprising in combination with the sword, lay, shuttle binder and the dagger, a bracket attachable to the outer face of the sword portion to which the lay is attached and by the same bolt which conventionally connects the lay and sword, said bracket having a vertically bored lug, a substantially T-shaped lever element the stem portion of which is disposed horizontally and provided at its end with a vertically bored hub hingedly mounted on the bracket by a headed pintle inserted downwardly through the aligned bores of the lever element hub and the lug of the bracket, the upper arm of the head of said lever element having a lug at its end projected laterally and slidably engaging the outer side of the shuttle binder, the

lower arm of the head of said lever element be-' ing flattened, the dagger having an integral extension rearward of its pivotal axis, and an upstanding lever arm having a base portion sleeved on said dagger extension with provision for securing the arm in longitudinally adjusted position on the extension, said lever arm being of a length less than that of the dagger and provided at its end with a rounded protuberance slidably engaging the flattened portion of the lower arm of the head of said first mentioned lever element, said protuberance being radially distant from the axis of the dagger also less than the length of the dagger.

3. In a loom, in combination with a shuttle binder and the dagger, an upstanding lever arm mounted on an extension of the dagger rearward of the pivotal axis of the dagger, and an intermediary element controlling and actuating said lever arm comprising a lever element interposed between the arm and the shuttle binder, a vertical pivot for mounting said lever element, said lever element being substantially T-shaped with the upper arm of its head in abutting relation to the outer side of the shuttle binder and the lower arm of the head receiving the upper end of said lever arm on the dagger extension in slidable contact therewith.

4. In a loom, the combination with the shuttle binder and dagger, a sword, a lever arm movable with and in fixed relation with the dagger, said lever arm being of a length less than that of the dagger, a substantially T-shaped element, a vertical pivot, the end of the stem portion of the T-shaped element mounted on the vertical pivot for horizontal swinging movement, the upper end of the head of the T-shaped element in the path of travel of the shuttle binder and operated by the movement thereof and the lower end engaging the lever arm carried by the dagger.

JAMES BRUCE BELL.

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