US1128706A - Roller for roller cotton-gins. - Google Patents

Description

I. M EURLING. ROLLER FOB ROLLER COTTON GINS.

APPLICATION FILED MAR. '7, 1911.

Patented Feb. 16, 1915.

mvgmoa 44mm? BY r WITNESSES ATTORNEYS *HE NORRIS PETERS C0,, #HOTO-LITHOU WASHINuIUN. D. C

ASSIGNOli'. TO DUPLEX GIN COMPANY, OF NEW YORK, N. Y., A CORPORATION OF ARIZONA.

ROLLER FOR ROLLER COTTON-GINS.

of the United States of America, and a resident of Brooklyn, county of Kings, and State of New York, have invented certain new and useful Improvements in Rollers for Roller Cotton-Grins, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

My invention relates particularly to the peripheral portion of the rollers, in which the friction surface for direct coaction with the fibers is contained, and consists, first, in disposing the friction surface throughout in a plurality of levels, the specific form of the surface preferably comprising alternate helical bands or strips disposed at two different levels; and second, in constructing the peripheral portion of the roller of a plurality of helically disposed strips composed of material comprising rubber and woven fabric, the alternate strips being of fine and coarse material respectively.

The main object of my invention is to increase the frictional hold of the surface of the roller upon the cotton fibers so as to in crease the eflicienoy thereof, and a further object of my invention is to reduce the expense of manufacture of such rollers, the walrus hide and other material commonly usedat the present day for the peripheral portion of the rollers being very expensive.

In order that my invention may be fully understood, I will now proceed to describe an embodiment thereof, having reference to the accompanying drawings illustrating the same, and will then point out the novel features in claims.

In the drawings: Figure 1 is a view in side elevation of a ginning roller constructed in accordance with my invention. Fig. 2 is a view in transverse section therethrough. Fig. 3 is a perspective view of a portion of the peripheral part of the roller.

The core 5 of the roller is of any suitable nature, the exterior thereof being of the cylinder form shown. The peripheral portion of the roller comprises a plurality of substantially rectangular strips 67 helically wound around the said core. The strips 7 are of slightly greater thickness than the strips 6 whereby the outer surfaces Specification of Letters Patent.

Application filed March 7, 1911.

Patented Feb. 16, 1915. Serial No. 612,874.

of the said strips the outer surfaces of the strips 6. The perlpheral friction surface of the roller will in this way be formed in two different levels and the bands or the strips of the surface at each level will follow helical paths.

The material of which the strips 6 and 7 are preferably composed is that commonly own as steam packing. It comprises a plurality of layers of woven textile, such as cotton cloth, surrounded with, and embedded in, a composition having rubber as a basis. Thisclass of materialcomes in many forms, that is to say, the woven textile fabric is of various degrees of fineness, the finer textile fabric resulting also in a harder material and the coarser fabric resulting in a softer material, and in accordance with one feature of my invention I form the alternate strips of coarse and fine material, the strips 6 having the lower level being composed of a relatively hard, fine material, while the strips 7 (the surfaces of which project radially beyond the surface of composed of a relatively soft, coarse material. These strips are conveniently out from material made in sheets, the woven fabric being laid in the plane of the sheets, and after the strips have been cut therefrom I preferably lay them edgewise on the core of the roller so that the'plane of the fabric lies in radial lines with respect to the roller. Thus the out edges of the fabric constitute the friction surface, the result being the formation of a nap-like surface which is particularly suitable for ginning purposes. The coarse and relatively soft radially extending portions quickly become worn so that this tendency to nap-like form is increased, the result being a high degree of efficiency otherwise quite difficult to attain.

It is usual in ginning rollers of this description to cut helical grooves in the ginning surface of the roller, and such grooves 8 may be readily cut in the faces of the strips in the present instance the direction of such grooves being preferably opposite to the direction of the strips as is shown in the drawings.

It will of course be understood that the strips are suitably secured in any desired manner to the core of the roller.

What I claim is:

1. A ginning roller for roller cotton gins comprising a cylindrical core, and a pluralthe strips 6) being.

7 project radially beyond ityjof strips disposed V and helically Wound around the said core,

v the alternate strips being composed of a mafothe'r level.

' face of. the latterzsaid strips being arranged terial comprising'rubber and coarse WOVGII' fabric, and a material comprising rubber and fine Woven fabrlc.

2. Aginningroller .forroller cotton comprising a cylindrical core, and "-a. plurality of strips disposedside byside thereon and helically Wound around the said core, the; alternate strips beingcomp'osed ofa material comprising rubber and coarse Wovenfabric, the outer surface of which is arranged'at one level, and a-material comprising rubber and fine Woven fabric, the outersurfaceof which is arrangedat an- A ginmngroller for roller cotton gins comprising a cylindrical core, and a' plurality of strips disposed side by side thereon and hel'ically a wound around the said core, the alternate strips being composed of a material; comprising rubber and coarse woven fabric, and a material comprising rubber and fine Woven fabric, the Eouter sur- Copi es ot this patenting he obtained for side by sid thereon toproject radially beyond the outer surface of the former said strips.

4., A ginning roller for roller cotton gins comprising a cylindrical core having helically Wound thereon a flat faced strip and thinner flat faced strip of harder material longitudinally filling the helical spaces between adj acent layers of said first strip, the

roller thus, covered having cut therein a hellric of unlike degrees of hardness, with the plane of the fabric radiallydisposed on said roller and with the softer ofv said layers P thicker than the other, the roller thus covered having cut therein a helical groove'w-ith the pitch thereof running in the opposite d1- rection to that of said covering layers.

. IVAR MEURLING.

Witnesses:

LYMAN S; ANDREWS J r.,

"F; B GnAvEs.

five c entsieiacmby adqressingthe Commissioner 0! Patents, j ;Was1 1ngton, D. 0; s 1

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