US112480A - Improvement in shuttles for sewing-machines - Google Patents

Description

UNITED STATES PATE-NT Genion.

JAMES MOORE, OF GRINNELL, IOWA.

IMPROVEMENTA INSHUTTLES FOR SEWING-MACHINES.

Specification forming part of Letters Patent No. 112,480, dated March 7, 1871.

y To all 'whom ztfmay concern:

. sewing-machines,.as will `be hereinafter more fully set forth. l

`In order to enable others skilled in the art to which my invention appertains to make and use the same, I will new proceed to describe its construction and operation, referring to the y annexed drawing, in which- Figure lrepresents alongitudinal vertical section of my shuttle, and/Fig. 2 is a perspective view of the same, the bobbin being thrown open.

A represents the shuttle, and B the bobbin. C is a frame or thread-guide, made of any suitable metal, of one continuouspiece, and soldered to ame-tal block, D,whieh is pi voted within the front end of the shuttle. The bobbin B has its journal-bearings in the block D and in `the outer end of the frame C. The frame Gis provided with holes a a, as shown in Fig. 2, to each ofwhich a slot, b, leads from the edge of the metal, said holes receiving the thread after passing through the slots, thus enabling the operator to thread more easily, than by putting through regular holes.

v Within the block D is a cavity, in which is placed a i headed pin, d, surrounded by a spiral spring, cfas shown inIiig.` l. The spring December, 1870.

e forces the head of the pin d inward, so as to i cover the hole through which the journal of the bobbin passes, pushing it into place. The head of the pin is so large that when it comes up against the frame it ceases to press the end of the bobbin, yet it keeps the bobbin in its place and Vleaves it room to play without frietion.

In Fig. 2 I have represented how the thread is passed through the holes a a, one of said holes having its slot extending to one edge ot' the frame, while all the others have their slots through the opposite edge. The hole in the shuttle through which the thread passes out has also a slot, f, as shown, so as to obviate the difticultyin threading.

Having thus fully described my invention,-

what I claim as new, and desire to secure by Letters Patent, is-

l. The frame C, made of one piece of metal, and provided with holes a a and slots b b, substantially as shown and described, and for theV i and arranged substantially as shown and described, and for the purposes herein set forth. In testimony that I claim the foregoing I have hereunto set my hand this 16th day of JAMES' D. MOORE. Witnesses:

JAS. H. Sco'r'r,

GHAs H. SPENCER.

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