US568718A

US568718A - George

Info

Publication number: US568718A
Authority: US
Publication date: 1896-09-29
Anticipated expiration: 1913-09-29

Description

(No Model.)

G. O. DRAPER.

SHUTTLE FOR LOOMS.

No. 568,718. Patented Sept. 29, 1896.

ED673131".- George afiraper, Z M y I UNITED STATES PATENT OFFICE.

GEORGE O. DRAPER, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO GEO. DRAPER & SONS, OF SAME PLACE.

SHUTTLE FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 568,718, dated September 29, 1896. Application filed August 6, 1896. Serial No,'601,889. (No model.)

To all whiom it may concern.-

Be it known that I, GEORGE O. DRAPER, of Hopedale, county of Worcester, and State of Massachusetts, have invented an Improvement in Shuttles for Looms, of which the following description, in connection with the accompanying drawings, is a specification, like letters and numerals on the drawings representing like parts.

This invention has for its object to improve the construction of loom-shuttles containing bobbins the heads of which are held by or between separable spring-arms, whereby the said arms may hold the said bobbin-head more securely and spread their hold more uniformly over the head.

Figure 1 shows a top view of a shuttle embodying my improvements; Fig. 2, a lefthand end view of the head of the bobbin or weft-carrier; Fig. 3, a section of Fig. 2 in line w, and Fig. 4 shows a modified form of bobbin or weft-carrier.

The shuttle-body A is of the class adapted to be used in a loom wherein the bobbins or filling-carriers are supplied automatically to the shuttle. The body has an inclined bridge a to direct the head I) of the bobbin or weftcarrier down into position between the jaws c and c of the bobbin-holder. This holder is substantially such as represented in United States Patent No. 538,507, dated April 30, 1895.

I-Ieretofore the heads I) of the weft-carriers or bobbins b have been cylindrical from end to end, and the rings or annular projections thereon have been of the same diameter.

In use it has been found that the jaws a fail to engage the ring nearest the tip of the bobbin as firmly as that farthest from the said tip, and to overcome this difficulty and insure the firm and secure holding of the head throughout its entire outer ringed surface I have made the rings 2 3 4 of the said heads of a decreasing diameter from the tip end of the spindle outwardly, and in this way, as the jaws connected at acommon point and adapted to be sprung apart are sprung apart by the insertion of the ringed head, the inclination of the jaws due to their change of position exactly contact with and engage and hold all the rings of the head alike and with equal force, thus preventing any liability of the bobbin beingheld loosely and moving unduly in the jaws in the shuttle.

Of the series of rings 2 3 4 the ring 2 is of greater diameter than 3, and ring 3 is of greater diameter than ring 4.

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

A bobbin or weft-carrier having a head provided with a series of annular rings of different diameter, the ring nearest the tip of the bobbin being of greatest diameter, substantially as described.

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

GEORGE O. DRAPER.

\Vitnesses:

E. D. BANCROFT, H. F. SEARLES.