US9918A - John hartin - Google Patents

Description

A UNITED sTATEs PATENT oEEroE.

f JOHN HAR'IIN, OF NEW YORK, N. Y.

METHOD OF DRYING PAPER.

Specification of Letters Patent No. 9,918, dated August 9, 1853.

To au Lo/wm t may concern:

Be it known that I, JOHN HAETIN, of New n York, in the county and State of New York,

have invented a certain new and useful Improvement on Machines for Drying Paper; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and the letters of reference thereon, all of which form a part of this specification, the same letters of reference always designating the same object of part of machine in all the figures.

Of the drawings Figure l is a sectional side view. A, A, are two uprights forming with B. B one side of the structure for the support of the fixtures. C, O, O, are three frames containing fans. D, D, D, D, are large rollers for conveying the paper through the machine. e. c. e. c. e. e. e. c. e. are small rollers to support the paper. F. is a blower. Gr is a pipe to conduct the wind from the blower into the frames (C. C. O.) H. H. H. are apertures for the wind to enter the frames. I. I. I. I. I. I. are fans for fanning the paper as it passes and repasses over and between them, K. K. K. K. K. K. are pulleys which by means of bands actuate the fans. L showing the paper as it passes through the machine.

Fig. 2. is a sectional end view. A. A. are uprights of the structure. Z) are traverses to connect the two sides of the structure. O. C. C. are three frames which hold the fans between which the paper passes. F is a blower. G is a pipe for conducting the wind from the blower into the frames. H. H. H. are apertures for the wind to pass into the frames. z' are valves for opening or shutting the apertures. K. K. K. are pulleys to actuate the fans.

Fig. 3 is one of the frames (O C O) showing the covering at the top; said covering being put on to prevent the paper from coming in contact with the fans.

vWhen paper is driedby passing it between opposlte jets of air issuing from perforations in air vessels, it is found that the jets of air indent the paper and make its surfaces rough and uneven. The nature of my invention consists in drying the paper by conducting it between opposite series of equal fans revolving with equal velocities, causing a pressure of air of equal force to act simultaneously upon opposite sides of the paper, by which I insure smooth and uniform surfaces to the same.

To enable others skilled in the art to make and use my invention, I shall describe its construction and operation.

I build an upright structure, of which (A. A. B. B, Fig. l) form one side. I connect two such sides together by means of traverse pieces as shown in (Fig. 2, Z). b). Into this upright structure I fiX several frames horizontally, at suitable distance apart; through these frames I run small shafts crosswise to which I attach thin pieces of wood, or tin, thus forming fans; the top and bottom of these frames I cover with wire cloth, or any other material, suitable for that purpose, allowing the air to pass through freely, to prevent the paper from coming in contact with the fans; on the top of these frames (O. C. C.) I place small rollers crosswise to support the paper. In the center of these frames at the top I place two short rollers oblique, forming an obtuse angle where they meet, which tends to keep the paper spread as it passes through the machine. On one side of the structure I place ablower (F. Fig. l and Fig. 2.) and connect this blower with the frames (C. C. C.) by a pipe (G) at the connection of each frame with this pipe I fix a. valve (i.) so that I can shut off the wind if required. At each end of the machine I place large rollers at their proper places, (as shown Fig. l D. D. D. D.) for conveying the paper through the machine. I put pulleys at the ends of the shafts and connect these pulleys by bands. Now if one of these large rollers (D) is set in motion it will operate the whole machine; it carries the paper through; it sets the blower in motion, and operates the fans thus causing the paper to dry.

The blower may be dispensed with altogether.

Vhat I claim as my invention and desire to secure by Letters Patent, is-

Drying paper by passing it between opposite series of equal sized fans which revolve with equal velocities; by which a pressure of air of equal force is made to act simultaneously upon opposite sides of the paper, and thereby insure smooth and uniform surfaces upon the same, substantially as herein set forth.

JOHN HARTIN.

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