US1996979A - Bobbin - Google Patents

Description

April 9, 1935. SCHWEHM ET AL 1,996,979

' BOBBIN Filed Oct. 11. 1934 WITNESS INVENTOR: 4 M 5/2/7557" SCHVEH/VI 54 OE'MAN EDA/IAN 7 BY Patented Apr. 9, 1935 UNITED STATES BOBBIN Ernest Schwehm, Jenkintown, andNorman Redman, Philadelphia, Pa., assignors to John M. Schwehm Sons, Inc., Philadelphia, Pa.,.a corporation of Pennsylvania Application October 11, 1934, Serial No. 747,836

7 Claims.

This invention relates to bobbins for looms, and has for an object to provide means for eliminating the waste of yarn due to the catching of the yarn fibers between the bobbin and the bobbin holding means of the shuttle.

It is well-known that in the weaving of fuzzy, fibery or hairy yarn, and more especially where the loom is provided with automatic bobbin replacement, the fibers or hairs of the yarn catch between the bobbin parts, and the parts of the shuttle holdingthe bobbin, preventing unwinding of a portion of the yarn from the bobbin which part is wasted, requiring also the service of employees to remove the waste yarn, resulting in considerable expense and labor.

The object of the invention is, therefore, to provide a. bobbin having means for holding the fibers or hair of the yarn out of position for engagement by the bobbin holding means, so that all of the yarn may be unwound from the bobbin in the regular course of weaving and, therefore, eliminating the waste and expense.

A further object of the invention is to provide a sleeve at the attaching end of the bobbin, said sleeve having a bell so proportioned as to direct the hairs or fibers of the yarn away from the ferrule employed upon the bobbin for association with the shuttle.

The invention, therefore, comprises in combination with a bobbin, a sleeve embracing the bobbin and providing means for association with a shuttle, said sleeve being expanded to bell shape on its end adjacent to the yarn carrying part of the bobbin, said bell being adapted to hold the fibers or hairs of the yarn away from the means also carried by the sleeve for attachment to and within, a shuttle.

The drawing illustrates an embodiment of the invention and the views therein are as follows:

Figure 1 is a View of a fragment of a conventional shuttle with a bobbin therein represented as being wound with hairy yarn, and the present invention applied to the bobbin, the invention being seen in normal top plan,

Figure 2 is a view of the bobbin, partly in plan and partly in diametrical section embodying the present invention, and

Figure 3 is a perspective view of the sleeve.

Like characters of reference indicate corresponding parts throughout the several views.

The present invention is of quite general utility and may be used effectively with various yarns, various types of bobbins, and various shuttles. It is, however, more especially adapted for carrying hairy or very fuzzy yarn, and again more particularly in association with shuttles operating in a loom having means for automatic bobbin replacement.

The bobbin proper indicated at I is a conventional type of bobbin but is no limitation upon 5 the invention, such bobbins are customarily bored as indicated at H and provided with a ferrule l2 at one end and a ferrule [3 at the attaching end which ferrule is normally turned inwardly at 14, forming a sleeve l5 within the bore II, and held in place by any approved means as the indentation Hi. The bobbin in general use is provided with a plurality of ribs I! which are normally formed by wire rings embracing the end of the bobbin and are employed for engagement by the parts I 8 of the shuttle l 9, both of which are conventionally shown at Figure l but without any limitation upon the invention.

With the conventional bobbin wound with very fuzzy or hairy yarn as indicated at Figure 1, the fibers or hairs almost invariably catch between these ribs I! and the engaging parts l8 so that the resistance provided by that holding of the fibers causes a breakage of the yarn and the stoppage of the loom and because said yarn is so caught, the part of the yarn remaining uponthe bobbin can not be used and must, be discarded and wasted. To overcome this waste, the present invention comprises a sleeve l9 which fits upon the end of the bobbin and preferably although not necessarily, abuts the ferrule l3. Preferably, this sleeve I9 will be provided with grooves 20 to receive the wire rings H although it is to be understood that ribs for the purpose may be otherwise applied or formed.

The sleeve I 9 is tapered to form a bell 2| so positioned and proportioned as to offer no obstruction to the proper introduction of the bobbin into the shuttle or the interconnection of the ribs I! and the engaging members l8, but at the same time to hold the hairs or fibers of the yarn away from such engaged position, as indicated more particularly at Figure 1, whereby the catching of the hairs or fibers of the yarn as above disclosed is prevented, and all of the yarn may be unwound from the bobbin as the weaving progresses, thereby as above disclosed, eliminating Waste of yarn and labor of removing the waste yarn from the bobbin.

It is believed that the foregoingdescription in association with the drawing will so clearly disclose the operation of the device that detailed description thereof would be surplusage.

Of course, the bobbin for looms illustrated may be modified and changed in various ways without departing from the invention herein set forth and hereinafter claimed.

We claim: g

1. A'bobbin having a head, and a bell thereon tapered outwardly from the bobbin.

2. A bobbin having a head, and a bell thereon tapered outwardly from the bobbin, providing an annular V-shaped recess between the body of the bobbin and the bell. v

3. A bobbin having secured upon its head a sleeve embracing the head, said sleeve having one endfiared outwardly to form a bell.

4. A bobbin having secured upon its head a sleeve embracing the head, said sleeve having one end flared outwardly to form a bell, said bell being located to partially overhang the yarn receiving part of the bobbin.

5. An attachment for a bobbin head comprising a substantially cylindrical sleeve having one end flared outwardly to form a bell.

6. An attachment for a bobbin head comprise ing a substantially cylindrical sleeve having one end flared outwardly to form a bell, said sleeve being provided with circumferential grooves.

7. A bobbin having a head, a sleeve embracing the head, ribs upon the sleeve for connection with a shuttle, said sleeve overhanging the yarn receiving part of the bobbin, said overhanging part being flared outwardly to form a bell.

ERNEST SCHWEI-IM. NORMAN REDMAN.

Images