US339941A - Loom-shuttle - Google Patents

Description

(No Model.)

B. SHAND.

LOOM SHUTTLE.

Patented Apr. 13, 1886.

UNITED STATES PATENT OFFICE.

ROBERT SHAND, OF PHILADELPHIA, PENNSYLVANIA.

LOOM-SHUTTLE.

SPECIFICATION forming part of Letters Patent No. 339,941,6ated April 13, 1886.

Application filed June 29, 1885.

To all whom it may concern:

Be it known that I, ROBERT SHAND, a citizen of the United States, and a resident of Philadelphia, Pennsylvania, have invented certain Improvements in Loom -Shuttles, of which the following is aspecitication.

Hy invention relates to that class of loomshuttles in which the cop is placed directly in the chamber of the shuttle and held therein by a cover-strip, my invention consisting of an improved elastic attachment for this coverstrip, with the object of dispensing with the strips of elastic fabric which are now extensively employed.

In the accompanying drawings, Figure 1 is a longitudinal section of a loonrshuttle with my improvements; Fig. 2, a plan view of the same; Fig. 3, a detached perspective view of the elastic attachment for the cover-strip de tached from the shuttle.

A represents the body of the shuttle, which is provided near one end with the usual delivery-eye, a, and has formed in it a chamber, '1), for the reception of the cop :0, which delivers from the end, as usual, and is confined in the chamber b by the cover-strap B, the cop being prevented from slipping longitudinally by reason of the serrated shell of the shuttle body.

Usually the strap B consists of a web of elastic fabric secured at one end to the shuttle body, and having at the opposite end a hook,

, (1, adapted to a transverse rod or bar, f, in the shuttle. The objection to a retaining-strap of this character is that it is rapidly worn out, and has a tendency to lose or partially lose its elasticity after a short time. To overcome these objections, I use a retaining-strap of leather or other inelastic material, and provide an elastic connection for this strap at one end. This connection, as shown in Figs. 1 to 3, comprises a drum, 9, free to turn onatransverse pin, h, driven through the shuttle-body, the drum being acted upon by a spring, i, which is coiled around the reduced end of saiddrum, one end of the spring being connected to the drum and the other end to a plate, m, having beveled edges for adaptation toadovetailed recess formed in the shuttle-body near one end of the chamber 1).

The tendency of the spring 1' is to turn the Serial No. 170,098. (No model.)

drum in the direction of the arrow, Fig. 1, and thus impart tension to the strap 15, and cause the latter to bear firmly upon the cop x, the drum yielding, however, when it is desired to release the hook (I from the barf, in order to lift the strap to remove the cop or insert a fresh one.

The plate we may, if desired, be dispensed with, and the outerend of the springiadapted to an opening formed directly in the shuttlebody; but the use of the plate preferred, as it provides a better bearing for the end of the spring, and permits the titling together ol'the parts before their application to the shuttle, all that is then necessary beingto seen re them in position by inserting the pin h.

1 am aware that a spring-drum and strap have been used for the purpose of drawing a block along a shuttle-spindle and l'orcinga cop l'rom the same; but this is essentially differcut from my invention, no spindle or sliding block being employed in my shuttle, and the function of the strap B being simply to serve as a cover for the cop and retain the latter in place. \Vhen the sliding block is employed for acting on one end of the cop, the opposite or delivering end ofthe same isjam med against the end of the recess in the shuttle-body, and the threads are thereby subjected to friction, tending to retard their free delivery, whereas in myimproved shuttle that end of the strap opposite the drum has a hooked catch adapted to a retaining-pin in the shuttle; hence the tension of the strap has no such effect as that above described.

I claim as my invention 1. The combination of a shuttle-body re cessed for the reception of a cop, a drum, g, hung to a spindle near one end of said recess, a retainer, f, near the opposite end of the same, a spring acting upon the drum, and a flexible but inelastic strap connected at one end to the drum and having at the opposite end a catch adapted to the retainer f, all substantially as specified.

2. The combinationofthe shuttlebody having a recess for the reception of the cop, alateral recess communicating with the said copreceiving recess near one end of the same, a cop-holding strap, B, a retaining-pin, f, for one end of said strap, a drum, to which the other end of the strap is connected, a plate, In testimony whereof I have signed my name 4) m, adapted to the lateral recess of the shuttleto this specifieationin the presence of two sub- 10 J body, a spring connected at one end to the scribing Witnesses.

drum and at the opposite end to'said plate, I v 1 5 and a pin, 71, passing through openings in the 6 ROBERT SHAND' drum, plate, and shuttle-body, and serving as Witnesses:

a spindle for the drum' and as a retainer for VILLIAM F. DAVIS,

the plate m, all substantially as specified. HARRY SMITH.

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