US663139A - Shuttle-check for looms. - Google Patents

Description

No. 663,89. Patented Dec. 4, I900.

W. W. TUBBY 8|. W. H. BROOMHEAD.

SHUTTLE CHECK FDR LOOMS. I (Application filed. May 21, 19.00.)

2 Sheat-Sheet I.

(No Model.)

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No. 663,l39. P atented Dec. 4, I900. w. w. TUBBY & w. H. BROUMHEAD. SHUTTLE CHECK FUR LOOMS.

(Application flle'd May 21, 1900.} ,(No Model.) 2 SheetsSheet42.

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witnesses.

M 1+ @LJOQMM (5 MW Q QLL aer I Attorney NITED STATES ATENT FFIC-E.

WALTER WM. TUBBY AND WILLIAM H. BROOMHEAD, OF FALL RIVER, MASSACHUSETTS, ASSIGNORS OF ONE-HALF TO LEONTINE LINCOLN,

OF SAME PLACE.

SHUTTLE-CHECK FOR LOOIVIS.

SPECIFICATION forming part of Letters Patent No, 663,139, dated December 4, 1900.

Application filed May 21, 1900.

To all whom, it 11mg concern:

Be it known that we, WALTER WM. TUBBY and WILLIA H. BROOMHEAD, citizens of the United States, residing at Fall River, in the county of Bristol and State of Massachusetts,

, proved adjustable binder or swell. Fig. 2 is a plan showing the shuttle box with top removed, the shuttle being way home and there held by the binder, finger, and check-strap. Fig. 3 is a rear elevation of shuttle-box and lay-sword and shows the relations between the binder, check-strap, and lay-sword. Fig. 4 is a plan showing the arrangement of two shuttle-boxes, such as in Fig. 1, on the lay of a loom, the middle portion of which is broken out. Fig. 5 is a rear elevation of Fig. 4, showing also the picker-stick and means for operating the same. Fig. 6 is a perspective view of a flexible hinge. Fig. 7 is a like view of an adjustable clip-washer.

Heretofore swells or binders for shuttleboxes have been hinged near the outer or picker-stick ends of the boxes and the binderfaces have been so short and so much inclined to the direction of the incoming shuttles that whenever any of the latter strikes a binderface the shuttle is suddenly and violently checked and thrown out of its otherwise unobstructed course and against the opposite side of the box and almost immediately stopped. This check and consequent shock to the shuttle is due to the resistance offered to the said shuttle by the binder and its pivot, the latter of which relatively to the shuttle almost forms a dead-center. The shuttle, however, is carried along the binderface until its remaining energy is overcome by the side pressure of the binder. This constantly-repeated driving of the incoming shuttle against the binders binder-face soon so gouges the latter that the binder becomes useless and has to be replaced by another, which soon follows the course of'the preceding one; further, the shock islikely not only to throw off the filling-yarn, but also to break it, hence Serial No. 17,397. (No model.)

destruction of material in manufacture and of parts of the machine and loss of speed in manufacture. Our invention removes these objections by providing means whereby the incoming shuttle may have a straight traverse throughout its course, comes gradually to a state of rest in each box, and after the beginning of each pick is speedily freed from the resistance ofiered by the binder to the delivery of the shuttle to the other box. There being no binder pivots or hinges having almost dead-centers, as heretofore, to resist the motive power of the incoming shuttle much less power need be imparted to the shuttle, and there are no sudden checks to produce injurious effects on the yarn, shuttle, and loom, and movements of shuttles cause much less noise.

In the drawings illustrating the principle of our invention and the best mode now known to us of applying that principle, Ais a shuttlebox consisting of the usual race-plate (1, boxback 01', and box-front (1 together with my improved adjustable binder or swell H, which like other binders closes a portion of the rear of the shuttle-box. The two opposite sides of the entry-way of the shuttle-box formed by the front box-face d and the inner box-face d are parallel with each other and also with the course pursued by the shuttle I in its passage from box A to box A; but farther in beyond the inner box-face 01 this parallelism ceases, the binder-face h h of the binder H becoming slightly inclined to and approaching the front box-face 01 Between the end h of the binderface h h and the adjacent end of the inner box-face d is a small space 71?. This is to allow the binder H to approach the inner box 01 in order to secure, by means to be described later, a proper adjustment of said faces after the binder-face h h has been shaved off to even its surface worn by the delivery and receipt of the shuttle I.

The hinge or pivot H on the binder is so located that any force of the shuttle operating on the binder-face h h of the binder H cannot be resolved into a thrust or drive against, as distinguished from a pull on, the pivot or hinge H. Hence we fix our hinge or pivot H at some point, for instance, on the lay-sword 1), adjacent to theinner box-face d", and as near as is practicable in the same plane as that of the binder-face h h of the binder H. By this location of the pivot or hinge H the only substantial resistance offered by the binder H to the incoming shuttle is to its rotation about its hinge or pivot H as a center.

The hinge or pivot which we prefer to use is made of some flexible materialsuch, for instance, as leather or sheet metal-so as to allow at the hinge not only a rotary but also a slightlateral movement of the binder. Such a hinge is shown in Fig. 6. It has a longitudinal slot 71 which enables it and the binder H to be adjusted and secured together by a bolt 71 provided with an adjustable clip-washer 77, portions of whose edges are bent overthe edges of the hinge H,thns forming a channel in which the hinge may, when necessary, be slid longitudinally and then be secured in adjustment desired. The hinge H ismade fast to the lay-sword d by a bolt h, for instance.

The movements given to the binder-face h h and their limitations are obtained by having on one side of the binder H, near its free end, the usual finger J, secured to the protection-rod], and on the other a thimble or swell bolt K, fixed to the race-plate d, the finger J always pressing the binder H against either the shuttle I or the thimble J, thus keeping the binder-face h 7t either in action or readiness for action on the shuttle I. To the free end of the binder a check-strap H is fixed. It passes around outside the pickerstick and along the front of the shuttle-box, where it connects with a runner L, attached to a like check-strap H on the opposite box A or at some fixed point, as on the lay. From the foregoing it will be clear that the advancing shuttle I on coming in contact with the binder-face h h meets not a sharp incline, but one forming a long and easy bearing surface or entrance, and that when the angle formed by the intersection ofthe plane of the path of the incoming shuttle with that containing the pivot of the binder and, if possible, also the presser-face is less than a right angle the pounding of the shuttle against what almost forms a dead-center is obviated with all objections arising therefrom. While by increasing the strength of the pressure of the finger J against the binder H the shuttle I can be successfully stopped, we prefer to use the check-strap H in combination with the picker-stick F, without said increase in the finger-pressure. As the pickershuttle I, which then stops.

stick F in its movement precedes the incoming shuttle I it is forced back, takes up the slack of the check-strap H and thus draws in the binder H still harder against the Consequently the operation of checking the shuttle is one which is free from sudden and objectionable interruptions. To deliver the shuttle I to the other box A, it is immediately freed from the'brake action of the check-strap H by the very first movement of the picker-stick F, operated by means M. Further, the brake action of thebinder H is very limited by reason of the fact that the points of contact, as h, between the binder-face and the shuttle are Well in the rear of the middle portion of the outgoing shuttle H, and hence only a small outward movement ofthe shuttle carries the latter by the point of extreme pressure It on the binder-face h h, which sub stantially immediately stops, impeding the progress of the outgoing shuttle I.

As will appear from Figs. 4 and 5, a further description both of shuttle-box A, its binder H 850., located near the opposite end of the lay, and operation thereof on the reciprocating shuttle I is hardly necessary, except, perhaps, to say that while one delivers the shuttle I the'other receives it, and vice versa. In short, our invention does away with the old drive or thrust of the incoming shuttle against I the binder and its pivot and secures an easy entrance of the shuttle into the box. It brings about a speedy release of the shuttle from the grip of the binder. There is a consequent saving in motive power by removing unnecessary breakage forces, less wear and tear upon the loom, less breakage of yarn, less throwing off of filling-yarn from the shuttle, less noise, greater speed in the loom, and, last, a great saving in binders by preventing their speedy destruction and loss by wearing.

It will be plain to all skilled in the art that various changes may be made in the preferred construction above described without departure from our invention.

Having described our invention, what we claim is- 1. The combination, in a shuttle-box,of the box-front thereof, with a shuttle-binder having a swell on its inner face, the outer end of the binder being free to vibrate about its pivot or hinge at the inner end of the binder, said pivot or hinge being of flexible material and having .a longitudinal slot therein whereby the binder can be adjusted endwise and secured to the hinge by the use of a bolt; means to hold the binder in binding contact with the shuttle a check-strap, one of whose ends is attached to the free end of the binder, while the other end of the strap is suitably anchored; a picker stick; and means to operate the picker-stick.

2. In a loom, a box-front of a shuttle-box, a shuttle-binder,the outer end of which is free to vibrate about a pivot or hinge of flexible material at the inner end of the binder; means to hold the binder in binding contact with the shuttle; a check-strap, one of whose ends is attached to the free end of the binder, and

the other end of the strap being secured to a runner; a picker-stick, and means to operate the picker-stick; in combination with the following bnt opposite parts; a box-front of a shuttle-box; a shuttle-binder, the outer end In testimony whereof We affix our signatures in presence of two witnesses.

WALTER WM. TUBBY. WILLIAM H. BROOMHEAD.

Witnesses:

ERNEST I. JACKSON, RICHARD P. BORDEN.

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