US309083A - Machine for coating cloth - Google Patents

Description

(No Model.)

W. H. NASH.

MAGHINBFOR COATING CLOTH.

Patented Dec. 9, 1884.

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WILLIAM H. NASH, OF READING, MASSACHUSETTS.

MACHINE FOR COATING CLOTH.

[JFEGEEICATIQN forming part of Letters Patent No. 309,083, dated December 9, 1884.

Application filed May 13, 1884.

To all whom, it may concern.-

Be it known that I, \VILLIAM H. NASH, of Reading, in the county of Middlesex and State of Massachusetts, have invented certain Improvements in Machines for Coating Cloth, of which the following is a specification.

This invention has for its object to provide improved means for applying coating compounds to cloth for the purpose of rendering the cloth water-proof, or partially so.

The invention is intended particularly for use with coating compounds containing a considerable proportion of water; and it consists, as a whole, in a machine provided with means for heating the compound and supplying it hot to the cloth to be coated, rolls for supporting and moving the cloth progressively, one or more of said rolls being heated to facilitate the drying of the compound, and a knife or scraper under which the cloth passes, and by which the coating compound is thinly spread upon the cloth.

The invention also consists in certain details, all of which I will now proceed to describe and claim.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a top view of an apparatus embodying my improvements. Fig. 2 represents a section on line w as, Fig. 1. Fig. 3 represents a perspective view of one end of the scraper.

The same letters of reference indicate the same parts in all the figures.

In the drawings, a I) represent two rolls carrying astrip of cloth, 8, to be coated. Said strip is formed into a belt or band having its ends cemented together. The roll a is rotated by power applied in any suitable manner and moves the cloth in the direction indicated by the arrows. The roll I) is hollow, and is heated by steam received through a flexible pipe, 0, connected with one of its ends. The roll a is supported by a fixed frame, 6, and the roll 6 by a frame, f, which is movable on tracks or ways toward and from the frame 6, so that after the cloth is formed into a band it can be stretched or tightened by moving the frame f away from the frame 0. To this end a drum,

h, is provided, mounted in fixed bearings and having a rope or chain, i, connected to its pe- The drum may riphery and to the frame f.

(No model.)

be rotated by means of a crank or lever to draw the frame f toward it, and is held by a ratchet and dog or other suitable means to prevent the framef from moving in. the opposite direction.

j represents a tank for the coating compound. Said tank is surrounded by a water jacket or space, it, under which is placed a heater, Z, which is preferably a small oil-stove, a bracket or shelf, at, being provided to support the same.

From the tank j extends downwardly a discharge-spout, j, extending across the tank, and terminating close to the cloth to be coated. The water-jackct extends nearly or quite to the bottom of the dischargespout. A slide or gate, it, enables the compound to be shut off from or allowed to flow through the dis charge-spout whenever desired.

Under the discharge-spout, and supported in an inclined position in slotted standards 0 0 on the frame e, is a board, p, having a metallic knife or blade, 1), of sufficient length to extend entirely across the web of cloth, and arranged at such height as to deflect the cloth downwardly between the roll a and an idle supportingroll, r, on the frame 6, the cloth and the front side of the knife forming a reentrant angle or trough, into which the coating compound falls from the spout j. The knife is provided at its ends with wings or end pieces, a a, which confine the accumulated compound and prevent it from running off from the edges of the cloth, excepting in small quantities close to the scraping-edge of the knife,smallapertures a being formed by rounding the wings was shown in Fig. 3, so that small quantities of the compound can pass over the edges of the cloth and coat the portions of the cloth which pass under the wings or end pieces, the surplus compound falling into receptacles o.

It is essential that the cloth be wider than the space between the end pieces, in order that the compound may be properly retained, and the provision of the small orifices a insures the coating of the parts of the cloth that are not subjected to the compound lying between the end pieces.

It will be seen that the compound is heated in the tank j and delivered in a hot condition passed around until it receives a coating of the desired thickness, each successive addition to the coating being dried before the next is applied. It will be seen, therefore, that necessity of waiting for the coatingto dry is entirely avoided.

I do not limit myself to'the employment of my improved apparatus for so-callcd water compounds, as it may be used to facilitate the drying of compounds containing volatile solventssuch as naphtha. It may, in fact, be used in the manufacture of gossamer waterproof material and the products commonly known as leatherettes.

A pressure or calendering roll, r, may be brought to bear on the cloth over the roll 0, to

compact the coating after it has passed the roll -b and before it receives its next addition.

I claim- 1. The combination, in a cloth-coating machine, of the tank having a discharge-spout and a heater, the steam-heated roll I), and its companion roll a, arranged to support and move an endless belt of cloth under said discharge-spout, said heated roll serving also to dry the heated compound supplied to the fabric by the heated tank, whereby the endless band of cloth is enabled to be kept rapidly and continuously in motion until it receives a coating of the desired thickness, as set forth.

2. The combination, with the cloth-moving rolls, of the spreading-knife and the tank j, having a dischargespout, said tank and spout being surrounded by a water-jacket and placed above the knife, substantially as described.

3. The combination, in a cloth-coating ma chine, of the clothmoving rolls a b, the latter mounted in a movable frame, mechanism, substantially as described, to hold said frame, the

spreading-knife, and the jacketed tank above said knife, all substantially as described.

4. The knife provided with end pieces, u, a, having openings a a, as set forth.

In testimony whereof I have signed myname to this specification,in the presence of two subscribing witnesses, this 9th day of May-1884.

WILLIAM H. NASH.

Witnesses:

G. F. BROWN, A. L. WHITE.

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