US88035A - Stuart gwynn - Google Patents

Description

i rolls.

'UNITED STA'I'ES'PATENT OFFICE.

srUART-GWYNN, oF-Nnw YORK, N. Y.

MAcHlNEl-'OR coNsTRucTlNe VEGETABLE MEMBRANE.

Specification forming part of Letters Patent NO. 88,035, datcd March 23, 1869.

Be it known that I, STUART GWYNN, of the city, county, and State of New York, have invented new and useful machinery and apparatus combined, which I have named, A Transforming-Machine,77 to be used in the manufacture of a new composition of matter named Vegetable Membrane and I do declare that the following is a full, clear, and exact description of the construction and mode of operating the same, reference being had to the annexed drawings, making part of this specification, in which the said machinery and apparatus combined are shown in sectional elevations-- i Figure 1 being a longitudinal section elevation of the affair as arranged to make twop1y77 Vegeta-ble membrane web;7 with an addition thereto in dotted lines, which, if added, would enable four-ply web to be made on it. Any additional number desired of the parts shown by the dotted lines may be added. Fig. 2 is a cross view of the machine or side clevation of this special part of a U-shaped perforated pipe. i

Al A A2 A are four tanks, of which A1 is to contain the transforming-fluid, and AZ the nentralizing-fluid.77 These fluids are fully described and the method of the preparation and mode of use in Letters Patent No; 73,322, granted to me January 14, 1868. A A, washwater. B is a roller made of thick Sheet-lead, or any other suitable material that will not be acted on by the fluid in which it revolves. D D1, D D2, D D3, and D D4 are pairs of squeezimg-rollers.,7 I prefer them made of vulcanized rubber. E and F are rolls of felt web,77 mounted 011 suitable axes, from which it un- I is a blue line, showing the transformed web7 as it passes on and through the wash-waters and neutralizing-fluid, and fin ally over the steam-heated drying-rolls J and J 1,

and is rolled up on roller K.

The yellow line G is the felt web passin g in contact with roller B, from which it takes off enough of the transforming-fiuid, in which the roller B revolves, to transform that web G, and also web H, represented by the green line. As soon as these two webs have passed through the first pair of squeezing-rollers, D D', they are united, and indissolubly make one transformed web, by the use of the transforming-fluid contained in tank A1.

N in Fig. 1, and N, Fig. 2, are perforated U-pipes, the holes being in the inner side of the limbs of the U. Water is ejected from these holes with force against the continuous web of vegetable membrane as it passcs slowly through the fiuids and between the limbs of the U-pipes. 4

L L Liin tanks A, A2, and A are plain bearing-rollers, used to keep the web im mersed in the fluid.

Suitable gearin g, or an arrangement of belts, actuate the various rollers at the speeds required. These are not required to be shown, as they may be varied to suit each man's Wish, and as no invention is required to apply the variety chosen.`

The method pursued in transforming the web;7 and manner of using this combined machinery and apparatus, will be fully understood from the following brief description of the mode of using the same.

Aweb two feet wide and one thousand feet in length should not exceed eight pounds in weight. It is made in rolls of from live thousand (5,000) to ten thousand (10,000) feet in length, the former the most desirable to handle.

The method of manufacture must be variedJ` W to suit the particular purpose for which the vegetable membrane77 is to be used. Broadly, it may be described thus: The transformin g-fluid is evenly spread over one or both surfaces of the felt, by transference from a lead or other suitable roller, charged by rotating slowly on its axis, immersed one-third its diameter in the tran sforming-fluid, held in a suitable tank, in which the fluid is maintained at a uniform level by a self-acting si phon or other suitable device. To make the vegetable membrane threefold thickness, I find it necessary only to spread the fluid on one side or surface of two of the webs.

From the lead transference roller the webs pass slowly forward, kept from touching each other for from fifteen to seventy-five seconds, dependin g 011 circumstances. They now pass altogcther between the first set of compressing-rollers, and thence into and through a long tank of water; thence, as the threefold web rises out of the tank, between Y-shaped pipes, perforated 011 their inner sides, from which perforations issue jets of pure water,

and thence through the second setof compressing-rollers; thence into a long tank, suitably lined, containing a dilute mixture of the neutralizing-fiuid in water of about the proportions of one part of the former to ten parts of the latter. As the web rises out of this tank it passes through another set of compressing-rollers, set quite tight, which squeeze out all the fluid that the web will part with Without a rupture of itsitexture. The web next passes into another tank of water, over and under rollers submerged therein, and as it rises from this tank it passes between another Y water-pipe, to finish washing out the saline and other soluble foreign m atters 3 thence through another set of compressing-rollers, and, finally, around one, two, or more steamdrying rolls. When it is used between or as a covering to textile fabrics, cementing, calendering, &c., in addition, will be required.

When the thickness required is more than fivefold, it will be found more desirable to pass transformed77 web, made up of two, three, four, or five thicknesses, a second time through the apparatus and machinery, than to make it thicker at one operation, although I have made it as thick as sixteenfold at one operation. Thus, to make sixteenfold, I prefer to make fourfold webs, and then unite four of them by passing them through a second operation.

To attach firmly and permanently Vegetable membrane self to self, no cement other than the transforming-fluid is required; but to put it between or as a covering to textile fabrics, &c., marine glue and other cementing materials, each adapted to the special purpose, will be required.

Thus, any person skilled in the arts of chemistry and paper-making will readily understand how to operate the combined machinery and apparatus.

Having fully described the combined machinery and apparatus, what I elaim is-- 1. Machinery and apparatus combined, containing the various members of an organization equivalent to that herein described, by the use of which like results can be obtained in the manufacture ofvegetable membrane, andany other analogous composition of matter.

2. The separate members of the organization of machinery and apparatus, if used for the purpose described, or when combined with any other machinery, if the combination is used for an equivalent manufacture.

STUART GWYNE.

Witnesses DnvlLLE N. ADMS, E. AYERs.

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