US239410A - Bobbin - Google Patents

Description

0. E. WAIT,

(No. Model.)

Bobbin.

Ir /E Will- E5525. du /0%? 4 UNITED STATES PATENT EEIoE.

OSCAR E. WAIT, OF FALL RIVER, ASSIGNOR OF ONE-HALF TO GEORGE DRAPER & SONS, OF HOPEDALE, MASSACHUSETTS.

BOBBIN.

SPECIFICATION forming part of Letters Patent No. 239,410, dated March 29, 1881.

' Application filed October 15, 1880. (No model.)

To all whom it may concern Be it known that I, OsoAR E. WAIT, of Fall River, county of Bristol, and State of Massachusetts, have invented new and useful Improvements in Bobbins, of which the following description, in connection with the accompanying drawings, is a specification.

This invention relates to bobbins, and has for its object to so strengthen the base of the bobbin as to prevent it from being broken by the action of the shuttle-catch thereon or by blows.

Certain patents of the United States granted to Jacob H. Sawyer, No. 176,359, April 18, 1876, and to Daniel lVright, No. 169,505, November 2, 1875, show the class of bobbin upon which this my invention is an improvement.

In both the Sawyer and the Wright bobbins a shuttle-catch engages an annularly-pro- 2o jecting shoulder or rim forming an integral part of the bobbin, the grain of the wood running across the said shoulder parallel with the axis of the bobbin.

A shoulder formed by grooving the base of the bobbin internally, as in the Sawyer and Wright plans, is very liable to be broken or chipped out by the strain upon it of the shuttle-catch. To obviate this diffioulty I take a band of tough flexible wood, the grain running in the direction of its length, and wind it spirally to form a tube, and I then out this tube into sections to form rings or bushings, which may be readily inserted into the bobbin-chamber at its base, a space being left, if desired, above the upper end of the bushing, to permit the end of the shuttle-catch to engage the bushing at its upper end. The grain of the wood in the shoulder formed by the upper end of the bushing runs substantially circumferentially about the bushing rather than vertically across it, thus furnishing a very strong shoulder, which cannot be broken out by the action of the catch upon it.

Figure l is a side elevation, partly in section, of one form of shuttle-bobbin provided with my improved bushing. Fig. 2 is a vertical section of a bobbin of different form, Fig.

3 represents a band or piece of tough wood twisted spirally to form a tube from which to out the bobbin-bushings, the contiguous edges of the band being pressed or otherwise brought substantially in contact when the bushings are out from the spirally-twisted band, preparatory to being inserted in the chambered bobbins.

In the practice of my invention I first take an ordinary bobbin, either such as represented at a or b, and provide it at its lower end with a suitable chamber to receive the bushing e, to be hereinafter described. To manufacture this bushing e, I take a narrow band or strip, 0, of tough-grained wood, with the grain running in the direction of its length, and. twist it spirally about a former or core to form a tube substantially such as represented in Fig. 3, the contiguous edges of the band being brought substantially in contact. This done, I cut the said tube into sections of sufficient length to constitute bushings for and insert them within the bobbin-chambers. The chamber made in the bobbin to receive the bushing is of such size and shape as to leave a space, a, about the top of the bushing when the bobbin is to be used in a shuttle, thus permitting the top of the bushing to act as a shoulder to be engaged by the usual bobbin or shuttlecatch shown in the Wright patent referred to, or by any other suitable well-known catch. The grain of the wood in this bushing, forming the shoulder to be acted upon by the shuttle-catch, runs substantially about the bobbin in the direction of the length of the bushing, or in the direction of the arrow thereon, thus producing a very strong shoulder, which. cannot be broken by the action of the shuttleoatch upon it.

Instead of using wood for the band 0 or bushings, I might use any other well-known strong bushing of vegetable or animal nature, such as vulcanized fiber.

A bobbin provided at its base with a bushing, 0, as described, cannot be broken as readily as other bobbins, or split by reason of strain within the base of the bobbin, or by blows or undue pressure upon the outer side.

My invention is equally applicable to speeder In testimony whereof I have signed my name and other bobbins. to this specification in the presence of two 16 I claimi subscribing witnesses. As an improved article of manufacture, a s 5 chambered bobbin provided at or near its base ObOAR WAIT with a spirally-twisted bushing, a; substan- Witnesses: tially such as described, and for the purpose F. J. DUTGHER,

set forth. W. S. BANOROFT.

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