US1570534A

US1570534A - Bobbin

Info

Publication number: US1570534A
Application number: US678257A
Authority: US
Inventors: Sweeney Edward; George A Hunsberger
Original assignee: Individual
Current assignee: Individual
Priority date: 1923-12-03
Filing date: 1923-12-03
Publication date: 1926-01-19
Anticipated expiration: 1943-01-19

Description

Jan, 19 1926;

E. SWEENEY ET AL BOBBIN Original Filed Dec. 5. 1923 9 Edward J'weeney Ge a rge ALHunsberger INVENTOR 0 BY M a ATTORNEY rmnied'ieaie, 192e,

UNITED STATES 1,510,534 P-ATENT- OFFICE.

EDWARD SWEENEY, or nonmsrown. AND GEORGE nunsnnnenn, or rorrsrown,

PENNSYLVANIA.

Application filed December 8, 1928, Serial No. 678,257. Renewed December 9, 1925.

To all whom it may concern Be it known that we, EDWARD SWEENEY and GEORGE A. HUNSBERGER, citizens of the United States, residing at Norristown and Pottstown, respectively, in the county of Montgomery and State of Pennsylvania, have invented new and useful Improvements in Bobbins, of which the-following is a speci1 fieation. I

This invention relates to bobbins, cones'or similar structures used in weaving or knitting, and an object of the. invention is to provide a covering for cone bobbins of the conventional type now in use, which W111 eliminate'the large majority of the disadvantages and inconveniences contingent with yarn, improper unwinding and what is the use of the present type of bobbins and cover, among which are the catching of the thread, part1cularly in cases of thread, silk,

or artificial silk, upon rough places in the bobbin, causing rupturing of the threador commercially known as bunching of the yarn resulting in-loss of yarn and causing -im erfections in the articles being made.

nother object of this invention is to pro vide a cover as specified which provides an outer roughened surface which is resilient and embodies sfuflicient roughness to permit the proper winding of the yarn thereon or.

unwinding therefrom and which also em- '-bodies suflicient resiliency to permit yielding of minute portionsof the roughened surface to'prevent the catching or s lipping of the yarn thereon.

Other objects of the inventionwill appear in the following detail description, and in the accompanying drawings wherein:

Figure 11s a view artlyfin side eleva= tion and partly in section, showing one of,

the improved covers mounted upon a bottle bobbin.

- Figure-2-is a view partly in side eleva tion and partlyin section, showing one form of the improved cover mounted upon a cone bobbin,

- Figure 3is'a seetion, showingv parts in elevation, of a modified form of the bobbin.

Figure 4is a side elevation of a further modified formof bobbin cover.

- Referring more articularly to the draw-' ings, the bottle bo bin-1 "of a proved t e is illustrated in Fi I and it isunderst re 1 oft e drawings, that in the usual a proved type of bottle bobbins. in use t e substantially frustro-conical body 2 is made of wood and has its outer surface roughened to permitthe properwinding of the yarn thereon. However, in practical use, it has been found that in unwinding, the yarn catches on rough places in the outer sur-' face of the bobbin body 2 and breaks, or causes bunching of the yarn on the bobbin, and consequently, results in loss of yarn and imperfections in the article being made. To overcome such features, a cow ering 3 is made of soft rubber preferably of what is commonly known as sponge rubber, and the outer surface of the c0"ering 3 is roughas shown at it-said roughness being provided by the irregularities in the rubber cause-:1 by the air holes and spongy construction of the rubber. The roughened surface 4 embodies sufiici'ent roughness to permit the proper. winding of the yarn or thread thereon. However, the

resiliency of the rubber will permit yield- 3 action on the yarn is the same as above.

mentioned, relative to the body 2 of the bottle bobbin and to overcome this, the covering 6 which is also made of spongy rubber is provided. In Figure 2 of the drawings, the cover 6 entirely encloses the bob:

bin 5, and in such cases, it is necessary that the tip or apex ortion 7 of the cover 6 have its outer surace smooth to permit the yarn to run off? the bobbin, while the majoriortion of the outer cover 6 is roughene as shown at 8, in the same manner as the cover 3 is roughened. L

In Figure 3 of the drawings, the modified form' of the bobbin'isshown in which the main conical body 10 is formed of hard rub-- ber and the outer surface of the hard rubber has a coverin or layer 11 of spongy rubber' thereon, w ich is vulcanized to the outer surlface of the bo'dy lO roviding'substantia ing thereof and prevent the yarn from catcha one pie'ce bObblIl comprising the silient or pliable outer portion. The outer surface of the spongy or resilient portion 11 is roughened, as shown at 12, all over, with the exception of the outer surface of the tip or apex portion 13 which is smooth to permit the yarn to run oifthe bobbin freely.

In Figure 4 of the drawings, a further modified form of the. bobbin structure is shown in which the cover which is made of soft spongy rubber is shown as tacked, or otherwise suitably attached to the cone 21. In this form the covering 20 may be cut from a sheet of spongy rubber and either tacked, stitched or otherwise suitably attached to the cone bobbin 21, and the covering 20 is shown shorter. than the cone bobbin 21 leaving the tip or apex 22 of the bobbin free from the covering, so as to facilitate the running off of the yarn from the bobbin.

It is to be understood, that in the construction of the moulded forms of covering, as shown in Figure 2 of the drawing, the apex of the bobbin proper, may be left free from the covering, as shown in Figure 4 of the drawings, without departing from the spirit of this invention, and the same is also true of making thetype of bobbin, as illustrated in Figure 3 of the drawings.

It is, of course, to be understood, that the invention may be constructed in various other manners and the parts associated in differentrelations, and therefore, we do not desire to be limited in any manner, except as set forth in the claims hereunto appended.

What we claim is:

1. As a new article of manufacture, a cover for yarn bobbins formed of sponge rubber and having a rough outer surface.

2. As a new article of manufacture, a cover for yarn bobbins formed of sponge rubber and having a rough' outer surface, the outer surface of the apex portion of said covering being smooth.

3. As a new article of manufacture, a bobbin comprising abody formed of a compound of hard rubber and having an outer covering of resilient sponge rubber mounted thereover.

4. As a new article of manufacture, a bobbin comprising a body formed of a compound of hard rubber and having an outer covering of resilient sponge rubber mounted thereover, and vulcanized thereto.

5. As a new article of manufacture, a bobbin comprising a body formed of a compound of hard rubber and having an outer covering of resilient sponge rubber mount-- ed thereover and vulcamzed thereto, the

outer surface of said covering being rough,

the apex portion of the outer surface of said covering being smooth.

In testimony whereof we affix our signatures.

EDWARD SWEENEY. GEORGE HUNSBERGER'.