US1074504A - Spinning-roll. - Google Patents

Description

E. KEMPSHALL.

SPINNING- ROLL.

APPLIOATION I'ILED JAN. 29, 1913.

Patented Sept. 30, 1913.

CDLUMEH) PLANOORAPH CouWASHlNOTObh D. c

unir srr S PATNT GFMQE ELEAZER KEMPSHALL, OF NEW YORK, N. Y., ASSIGNOR TO KEMPSHALL SUPPLY COMPANY, A CORPORATION OF NEW J ERSEY.

SPINNING-ROLL.

Specification of Letters Patent.

Patented Sept. 30, 1913.

To all 10720772, it may concern:

Be it known that- I, ELEAZER KEMrsHALL, a citizen of the United' States, residing at New York, in the county of New York and State of 'New York, have invented certain new and useful Improvements in Spinning- Rolls; and I do hereby declare the following to be a full, Clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a -part of this specification.

This invention relates to rolls for Spinning machines.

The object of the invention is to provide a slow yielding mass of material, and an interposed binder of material having a less tendenoy to rebound or yield than either the outer coating of pyroxylin, or the inner material forming the base.

My invention therefore is primarily directed to a roll constructed of such material as will slowly yield eftectually to avoid breaking or displacing the thread When passng between a pair of rolls.

n the drawings: Figure 1 is an elevation of a pair of rolls, one of the latter being broken away to illustrate the invention. Fig. 2 is an enlarged detail-cross section of one of my improved rolls.

l indioates a shaft, 2 a metal core on the shaft. Around the metal core is a base of slow yielding material 3, felt being preferably employed. The base of felt is of substantial thickness, and is in a semi-compressed condition to form a tight grip on the metal core. To hold the base solid on the core, and at the same time add to the slow action of the felt, I incase the latter with a thin binder of leather, indicated at 5. The leather s stretched tight around ,the felt and clamps the same on thecore, and prevents slipping which frequently occurs When knots are formed in the thread.

The leather binder is coated with pyroXylin, indicated at 8, and When the latter is applied it takes into, or packs into the interstices or" the leather, and forme a tight grip. The materials, base, and coating form a homogeneous body of yielding material, which will slowly. rebound to its normal position after the thread passes from between the roll.

In a companion application, executed of even date, I have described and claimed a base of felt, but for a certain class of thread I find it expedient to provide a mass which will respond even slower than a body of fabric. F urthermore, When the pressure between the rolls is very great, it is essential that an effective binder between the pyroxylin and felt be provided. I find that this binder must be of such material as will slowly yeld, and must be capable of taking the pyroxylin in its outer sur-face, and at the same time it must possess the necessary strength. Leather has all of these essentials, so that. in addition to a binder, the leather acts with the feltas an etfective means to make the mass slowly 'yield without a rebound.

Having described my invention, What I claim is:

1. A roll comprising a core, a layer of thick' fabrlc on the core, a. bmder of leather on the fabric, and a coating of pyroXylin on the leather.

2. A roll comprising a core, of felt on the core, a binder of leather around the felt and a coating of pyroxylin around the leather, the pyroxylin being embedded in the interst-ices of the leather.

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

ELEAZER KEMPSHALL.

VVitnesses EMILY F. CAMP, J NO. Inman.

a thck layer Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0.

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