US901764A - Loom. - Google Patents

Description

F. T. WITHEE & R. WHITE.

' LOOM. urucnmx FILED 51:21.20, 1906.

901,764. Patented 00a. 20;1908.

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P. T. WITHEE a; R. WHITE. 1.00M.

APPLICATION FILED M228, 1908.

901,764. Patented Oct. 20, 1908.-

2 inns-suma. 55 63 54 I FRED'l. WITHEE AND ROBERT WHITE, OF SPRINGFIELD, MASSACHUSETTS.

LOOM.

To all whom it may concern:

Be it known that we, FRED T. WITHEE and ROBERT WHITE, both citizens of the United States of America, and residents of Springfield, in the county of Hampden and State of Massachusetts, have invented new and useful Improvements in Looms, of which the following is a specification.

Our invention relates to improvements in power looms designed especially for weaving wire-cloth, and consists essentially of certain peculiar mechanism for operating the shuttle, such mechanism comprising a shuttlebox provided with a plunger spring-actuated in one direction and with a latch for holding such plunger against the force of its spring and for releasing it to said spring, a retractor for the plunger, and a releaser to throw said latch out of engagement With the plunger, all as hereinafter set. forth.

The object of our invention is to furnish a loom of the fly-shuttle variety with shuttle-operating mechanism which is accurate, positive and powerful, and which takes up the slack in the weft wire, such mechanism being simple both in construction and operation and applicable to looms of different widths.

Other objects and advantages will appear in the course of the following description.

We attain these objects by the mechanisms and means illustrated in the accompanying drawings, in which Figure 1 is an end elevation of a part of a wire-weaving loom embodying so much of our invention as can be shown therein; Fig. 2, an enlarged plan view of a part of the shuttle-operating mechanism, the plunger being at the end of the travel imparted thereto by its spring; Fig. 3, a similar view showing said plunger retracted and held by the latch; Fig. 4, a front view of the mechanism shown in. the two preceding views, such mechanism being disposed as in Fig. 2, and, Fig. 5, a plan. view of the plunger retractor and releaser.

Similar figures refer to similar parts throughout the several views.

The old parts of a loom which appear in the first view are a portion of the end of a frame 1, a batten 22 mounted to swing in the frame in the usual manner, and a slay 26. It is to be understood that said slay may be operated by any of the well-known means familiar to those skilled in the art.

Having pointed out thus briefly the prin- Specification of Letters Patent.

Application filed September 28, 1906.

Patented Oct. 20, 1908.

Serial No. 336,547.

cipal parts of the old construction which we retain, we will describe fully the new features and their functions of the shuttle-operating mechanism.

A shuttle-box 54 is securely fastened to the batten 22 at each end of the slay 26 and the upper surface of the floor of such box is in line with or a continuation of the shuttle race-way in said slay. The-box 54 may have a flange 55 at the end contiguous to the batten 22, which flange is firmly secured to the batten, or said box can be fastened in position in any other suitable manner. This box does not differ materially from other fiy-shuttle-boxes, except that it has a longitudinal slot 56 in its floor opening through the outer edge. Underneath the floor of the box 54 is a latch 57 pivoted at the outer end to said floor in front of the slot 56 at 58 and having its inner hooked terminal normally held across said slot by a spring 59 fastened to the floor by a staple 60. Two bearing lugs 61 are fastened in the box for a sliding plunger 62, which latter is provided at its inner end with a yielding or spring clip 63 for grasping the shuttle and near its outer end with a projecting member or pin 64. The pin 64 extends through the slot 56. A spring is employed to forcibly drive the plunger 62, when retracted, along the slay 26, such spring in the present case being a spiral-spring 65 having one end fastened to said plunger at a point between the lugs 61 'and the other end fastened to the inner of said lugs. The shuttle-box and the contents thereof and attachments thereto all swing with the slay.

As before stated, there is a shuttle-box 54 at each end of the slay, and the shuttle-operating mechanism, including the retractor 66 and the releaser 67 described below, is also provided at each end of the loom, but since these members at one end are the exact counterpart of the corresponding members at the other end it is not deemed necessary to encumber the case with illustrations of both sets.

The retractor 66 and the releaser 67 comprise abutments,' flanges, or ribs suitably supported in the paths of travel of the pin 64 as it moves forward and back with the slay. At the back end of the releaser rib is a projection or abutment 68 which lies in the path of travel of the latch 57 when said latch goes backward with the slay, and this abutment 68 constitutes part of the releaser.

is as follows, assuming that a shuttle 69 has just been shot through the shed and come to rest with one nose within the grasp of the clip 63. The pin 6% at this time is in its inward position or at point 70, Fig. 5, but is at once forced outward at right-angles to the direction in which it is now being car ried by the forwardly swinging slay 26, it being understood that said slay moves forward as soon as the shuttle has been shot. his double motion of the pin is produced by the slay on the one hand and by the retractor 66 on the other. By the time the pin has moved from the point 7 0 to the point Tl, Fig. 5, it will have been forced past the hook of the latch 57, the spring 59 yielding to permit said pin to pass said hook but immediately forcing the latch back into position. N ow upon the backward swing of the slay the latch catches the pin and holds it so that it no longer bears on the retractor but passes therefrom to the releaser 67 which, during the continued backward movement of the slay, causes the pin to again move outward away from the latch. By the time the pin arrives at the point 72, Fig. 5, it having passed from the point 71 to said point 72, the latch hook has encountered the abutment 68 of the releaser and has been thereby thrust out of the path of the pin. The pin is released when it reaches the point 72 and the shuttle is shot. The described lateral movements outward are imparted to the pin owing to the fact that the retractor rib extends forward and outward from a point adjacent to said pin when it occupies its extreme inward position or the position nearest the slay, and that the releaser rib extends rearward and outward from a point adjacent to the pin when held by the latch; in other words, the front end of the retractor rib is farther away from the plane of the adjacent end of the slay than is the rear end of this rib, and the rear end of said releaser rib is farther away from said plane than is the front end of said lastmentioned rib. It will now be readily understood that the pin G l in its travel away from the slay 26 carries with it the plunger 62 against the resiliency of the spring 65 and, since the shuttle 69 is in the grasp of the clip 63 at the adjacent end of said plunger, said shuttle goes with the plunger, thus taking the slack out of the weft-wire and tightening the same. Then when the pin is released, at the end of the backward sweep of the slay, the spring 65 drives the plunger along the slay with sufiicient force to shoot the shuttle through the shed and into the the shock occasioned by'the more or less sudden and violent stopping of said plunger after said spring has expended its force causing said shuttle to free itself from the clip 63. A repetition of the operations just described next takes place at the opposite end of the loom as the slay swings forward and back once more. In this manner the weaving process continues indefinitely.

It is evident that various changes in the shape, size, arrangement and construction of some or all of the parts which enter into shuttledriving mechanism may be made without departing from the nature of our invention. In this connection attention is called to the fact that the shuttle-box might in some cases consist merely of the floor and one side or even of the floor alone only so much of the box being required for the purposes of our invention as is necessary to support the plunger and intimately associated members, therefore it is to be understood that the term box as used in the claims does not necessarily include more than what may be needed for the accommodation of the aforesaid parts.

hat we claim as our invention, and desire to secure by Letters Patent, is

1. Shuttle-operating mechanism, for a loom, comprising the slay, a shuttle plunger provided with a projecting member and spring-actuated in one direction, traveling with said slay, a latch also traveling with the slay and normally lying in the lateral path of said member, and stationary means, lying in the path of the member'which it takes with the slay and of the path of said latch which it takes when the slay swings rearward, to alternately actuate the member into engagement with the latch and out of such engagement.

2. The combination, in a loom, with the slay and the shuttle-box at each end thereof, of a plunger spring-actuated in one direction, longitudinally mounted in such box, provided with means at its inner end for grasping and releasing a shuttle and further provided with a downwardly-extending pin which projects below the floor of said box,

and a yielding latch attached to the under-c side of said floor in operative relation to said pin and adapted to hold and release the shuttleoperating mechanism comprising a plunger spring-actuated in one direction, in such box, provided with means for grasping and releasing a shuttle and provided with a projecting member, a yielding latch. in operative relation with such member, and stationary means to cause said member to be actuated into engagement with said latch and said plunger to be retracted against the resiliency of its spring upon the forward sweep of said slay and to cause the member to be released from the latch and the plunger to be released to the spring upon the rearward sweep of the slay.

5. The combination, in a loom, with the slay and the shuttle-box at each end thereof, of a plunger spring-actuated in one direction, longitudinally mounted in such box, provided with means at its inner end for grasping and releasing a shuttle and further provided with a downwardly-extending pin which projects below the floor of said box, and a stationary retractor in the path of said pin to cause the same to be forced outward with said plunger against the resiliency of the plunger spring when said slay swings forward.

6. The combination, in a 100111, with the slay and the shuttle-box at each end thereof, of a plunger spring-actuated in one direction, longitudinally mounted in such box, provided with means at its inner end for grasping and releasing a shuttle and further provided with a downwardly-extending pin which projects below the floor of said box, a yielding latch attached to the underside of said floor in operative relation to said pin, and a stationary retractor in the path of said pin to cause the same to be forced outward with said plunger against the resiliency of the plunger spring into engagement with said latch when said slay swings forward.

FRED T. WITHEE. ROBERT WHITE. Witnesses as to WVithee:

F. A. CUTTER, ALLEN WEBSTER. Witnesses as to White:

J AS. J. TEELING, HOWARD GILLIN.

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