US687520A - Shuttle-box for looms. - Google Patents

Description

No. 687,520. Patented Nov. 26, |90l.. W. F. DRAPEB.

SHUTTLE BOX FUR LOOMS.

(Application filed July 20, 1901.) (No Model.) I

I. $4M r @M/4W4 UNlTED STATES PATENT OFFICE.

WILLIAM F. DRAPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO DRAPER COMPANY, OF I-IOPEDALE, MASSACHUSETTS, A CORPORA- TION or MAINE.

SHUTTLE-BOX FOR LooMs.

SPECIFICATION formiilg 'part Of Letters Patent N6.- 687,520, dated. November 26, 1901. Application filed .l'nly 20,1901. Serial No 69,000. (No model.)

7 To all whom it may concern:

Be it known that I, WILLIAM F. DRAPER,

a citizen of the United States, and a resident ment in Shuttle-Boxes for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the d rawings representing like parts.

This invention relates more particularly to shuttle-boxes for looms; and it has for its principal object the production of means whereby the top portion of the shuttle-box may yield temporarily at the inlet end of the box should the shuttle strike such portion of the box, the practically instantaneous return of the yielding member or part acting to at once replace the shuttle in its proper path of movement. The usual cover-plate or shuttle-box top, which acts as a guard for entering shuttles, is made as a rigid fast piece of metal and is absolutely unyielding should the leading end of the shuttle lift and hit the plate, as not infrequently happens, and by reason of the unyieldingness of the plate the shuttle is apt to be displaced from its proper path and will not be accurately positioned in the box.

The novel features of my invention will be hereinafter described, and particularly pointed out in the following claims.

Figure 1 is a front elevation of one end of a lay-beam with a shuttle-box thereon embodying one form of my invention. Fig. 2 is a perspective view detached of the coverplate or guard shown in Fig. 1. Fig. 3 is a view similar to Fig. 1, but showing another form of my invention; and Fig. 4 is a top or plan view detached of the cover-plate shown in Fig. 3.

Referring to Figs. 1 and 3, the lay-beam A,

the picker-stick P, lay-sword A and the back binder B, mounted to rock on the vertical pivot-stud b, may be and are of any usual or well-known construction,and for convenience in illustration I have shown the structure herein as based on the structure shown in United States Patent No. 630,097, dated August 1, 1899. In the said patent the coverplate for the shuttle-box is secured at its outer end to the stud Z) and at the inner end by a fastening-bolt c to connect the cover plate at the latter point with the side of the box-plate. Such cover-plate is made as a casting and is unyielding of itself and is secured in place in an unyielding manner.

Referring now to Figs. 1 and 2, the coverplate is made in two parts 0 0", connected by a transverse pivot 0 so that the part 0 which overhangs the inlet end of the box, may rise and fall, turning about the substantially horizontal fulcrum 0 The part C is provided with a socketed eye 0 to embrace the vertical stud b, and it also has an ear or projection c to receive the fastening-bolt 0*, which is extended through the ear 0 into the side member D of the box, substantially as in the patent referred to, and in this embodiment of my invention the member 0 is rigidly secured in place. Between the top of the ear 0 and the nut c of the fastening-bolt 0 I have interposed the base s of a suitable leaf-spring s, which extends substantially in the direction of the lay and bears upon the top of the movable part 0 of the cover-plate, the spring normally maintaining the movable member 0 seated upon the top of the side member D, as shown in full lines, Fig. 1.

When a shuttle in entering the box rises at its leading end for any reason, as indicated in dotted lines, Fig. 1, the impact of the shuttle against the under face of the movable member 0 will lift the latter or rock it on its fulcrum c compressing the spring 3, so that there is a temporary yielding of the box-cover at the inlet end of the shuttle-box, thereby doing away with the shock which would be due to the shuttle striking an absolutely rigid part, and the practically instantaneous reflex action of the spring returns the member 0 to its normal position, and thereby presses down and returns the shuttle to its proper normal path, so that it will enter and be properly positioned in the shuttle-box.

The shuttle S is shown in dotted lines in Fig. 1 as tipped up and having struck the movable member O', the dotted-line position of the latter showing the effect of the impact of the shuttle thereupon.

In Figs. 3 and 4 I have shown another form of my invention, and herein the cover-plate may be substantially of the form shown in the patent referred to, the cover-plate being made as a casting in one piece and provided with the car 0 having a hole 0 for the fasteningbolt, the outer end of the cover-plate having the socketed eye 0, as before, for the stud b. Instead, however, of bolting the cover-plate rigidly in'place by a fastening-bolt, as-in the patent referred to, I use a longer bolt, as 0 Fig. 3, and between the top of the ear 0 and the under side of the nut c I interpose a suitable spring 3 shown as a spiral spring coiled around the bolt. The spring 3 is stiif enough to normally maintain the cover-plate in position resting upon the side member D; but should the shuttle tip up as it enters the box it will strike the inlet end of the coverplate, which I have indicated as a Whole by 0 and will lift the inner end thereof against the stress of the spring 3 In this instance the socketed eye a will loosely fit the stud b to permit the slight rocking movement of the cover-plate 0 when hit by the shuttle. To prevent binding, the hole a is preferably made slightly elongated in the direction of the length of the cover-plate, so that the slight rise and fall of the latter are readily per mitted without interference by the bolt.

My invention is not restricted to the precise construction and arrangement herein shown, for, so far as I am aware, it is broadly new to provide 'a shuttle-box with resilient means overhanging its outer orinlet end,such means being adapted to yield upon impact of the shuttle, and accordingly changes or modifications may be made without departing from the spirit and scope of my invention.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a shuttle-box for looms, a cover-plate having a pivotally-mounted inner end, and a spring to retain the pivoted end in normal position.

2. In a loom, a lay, a shuttle-box thereon, a cover-plate therefor having its inner end vertically movable, a support for the outer end of the cover-plate, and a spring to act upon and retain the inner end of the plate in normal position.

In testimony whereof I have signed my name to this specification in the presence of two subscribing Witnesses.-

VVILLIAM F. DRAPER.

Witnesses:

GEORGE OTIS DRAPER, ERNEST W. W001).

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