US1070520A - Roll. - Google Patents

Description

H. PARKER.

ROLL.

APPLICATION 11.51) JULY 15, 11111.

\ 520 Patented Aug. 19, 1913.

@ U3 WITNESSES." Q INVENTOR. 1 Howard Par/ren- Zw's A TTORNEY.

UNITED STAl. ES PAT FFICE.

HOWARD PARKER, 01? NASHUA, NEW HAMPSHIRE, ASSIGNOR TO THE IMPROVED PAPER MACHINERY COMPANY, OF MAINE.

0E NASHUA, NEW HAMPSHIRE, A CORPORATION ROLL.

orenzo.

Specification of Letters Patent.

Patented Aug. 19,1913.

Application filed. July 15, 1911. Serial No. 638,691.

To all whom it may concern Be it known that-I, HOWARD PARKER, a citizen of the United States, and a resident of Nashua, in the county of Hillsboro, State of New Hampshire, have invented certain new and useful Improvements in Rolls, of which the following is a specification.

This invention relates to improvements in rolls which may be used for various purposes, the roll illustrated in the drawings being designed for use as a couch ,roll in aper making and pulp treating machines.

hese rolls usually comprise a rigid core and have a surface applied to them of felt or some such material. In the drawings: Figure 1 is a side elevation partly in section of a portion of a roll made in accordance with my invention. Fig. 2 is an end view thereof with parts broken away to show construction. Figs. 3 and t are detailed views of the covering material.

In the embodiment of the invention illustrated (1 denotes the core of the roll, which preferably is provided with longitudinally extending lagging strips 6, which are spaced at intervals about the core. On this core I wind the cpvering of the roll, which is preferably of felt, binding it in place by a suitable binding wire f which at intervals is fastened down on to the lagging strips by the staples 8.

By preference the felt covering I form from old paper machine felts which, as is well known, are of considerable width and length. I out these felts up into strips about three inches wide, superimpose two or more of these strips, preferably five or six of them, as indicated in Fig. 3, and stitch them together along their edges at 0 and along each side of the center as at d. I then cut through all but one or two of these strips along the center as indicated at m in Fig. 4, so that the strip can be folded on itself as indicated in Fig. 3. The binding wire f lies in the bottom of the groove thus formed. It

- will be seen that as this strip is wound on to the roll the sheets of felt are arranged edge wise on the core. lhe surfaceof the roll can be readily turned down to smooth it ofi when necessary.

Actual experience with rolls made in accordance with my invention when utilized for pressing surplus water out of a web of paper or pulp has shown it to possess material advantages in that, owing to its structure and to the manner in securing the covering material in place, it. provides escape passages for the waste water carrying it away from the point where the web is being pressed and preventing it from running back on to the web and softening it so that it will crush when passing through the press roll.

I claim as my invention:

1. A roll surfacing material comprising a plurality of layers of fibrous material superlmposed one upon another, less than the whole number of said strips being out along their median line and secured to the uncut strips, the uncut strip or strips being folded along the median line forming a completed strip of double thickness of the original strip and which is adapted to be wound spirally on to a core with the strips arranged edge wise thereon.

2. A roll surfacing material comprising a plurality of strips of textile material sup'erimposed one upon another and stitched together near their edges and at each side of the median line of said strip, part of said strips being out along their median line between the two rows of stitches, the remaining strips being folded upon themselves along the median line, the finished structure being adapted to be spirally Wound on to a core with the strips arranged edge wise wit-h relation thereto.

, HO WARD PARKER.

Witnesses:

A. A. PACKARD, ROBERT A. FRENCH.

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