US319353A

US319353A - Process of carbonizing paper

Info

Publication number: US319353A
Authority: US
Publication date: 1885-06-02
Anticipated expiration: 1902-06-02

Description

(Specimens.)

s. E. TROTT. PBOOESS OF GARBONIZING PAPER.

No. 319.353. Patented June 2, 1 885.

u. PHERS. Pholwl-ilhngmpher. Wauhinglon. mc,

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PROCESS OF CARBONIZING PAPER.

SPECIFICATION forming part of Letters Patent No.'319,353, dated June 2., 1885.

Application filed February 6, 1884. (Specimens) To all whom it may concern:

Be it known that I, STINsoN E. Tnorr, a citizen of the United States of America, residing at Wilmington, in the county of Will and State'of Illinois, have invented certain new and useful Improvements in Oarbonized Paper and Mode of Making Same, of which the following is a specification, reference being had therein to the accompanying drawing.

The figure is a vertical cross-sectional view.

This invention consists in a method for can, bonizing paper for building and other analo j gous purposes and rendering it impervious toj moisture and less destructible for wear o1 floors, 800.

In the drawing asimple device is shown and intended more to illustrate the method and means of treating the paper to produce the result than as any particular invention, except so far as to the means of heating the carbonizing-rolls.

A A represent a pair of hollow rolls of a paper-machine, such as are heated by steam admitted through their journals in the ordi nary manner.

13 B are a pair of solid rolls, the lower one of which is intended to be heated by a flame, F, which may be of any kind or applied in any form so it will heat the roll.

0 is a sheet of straw-board paper, which, as it emerges from between the rolls A A, passes down under a roller in vat D, and from thence out between the rolls B B. The vat D contains a compound or mixture of rubber, asphaltum, and sulphur, the proportions of which can be varied to be the most effective for thekind and quality of paper used. As the paper passes through this compound or mixture, it becomes thoroughly saturated with it, and then immediately passes between the rolls B I3, the lower one of which in this case is heated to a high enough temperature to carbonize the saturated paper to a sufficient degree to render itvery compact, hard, and imsuch a degree as to destroy the iiber and texture of the paper.

The object of using a flame to heat the roll 13, or both of them, if desired, is that it is not possible to raise the temperature of a set of rolls by steam to such a degree as to produce carbonization of the paper and the substance with which it is saturated.

The paper, when thus treated and carbonized, forms a hard dense substance capable of a high degree of polish, well suited for use on floors, roofs, walls, &c., almostindestructible so far as the action of the weather is concerned.

In the device for so treating the paper any number of rolls may be used. Both the upper as well as the lower rolls may be heated by a flame; or the initial set may be heated by steam when less degree of temperature is required at first after the paper leaves the bath.

The compounds named may be substituted by others that may be their equivalent and will produce said result.

I am aware that it is not new to simply saturate paper with the materials named, and hence I do not claim it is new simply to so saturate the paper without carboniziug the composition, as stated.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is as follows, to wit:

In the manufacture of incandcscents, the method described of producing a carbonized paper by passing the paper through a compound or mixture of rubber, asphaltu m, and

sulphur, and then passing the papefso saturated between rolls heated to such degree as to carbonize the same, and forming the incandescent therefrom, substantially :as and for the purpose set forth.

STIN SON E. TROTT. Witnesses:

Tnos. H. Hurcnms, JNo. S. MILLAR.

pervious to moisture, but not'carbonized to 45