US558301A - Machine for drying paper - Google Patents

Description

(No Model.)

L. W. N OYES. MACHINE FOR DRYING PAPER.

' No. 558,301. Patented Apr. 14,1896.

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ANuREw EGRANAM PHOTO-UTHO. W ASHINFIDN. D C

UNITED STATES PATENT OFFICE.

LEWIS IV. NOYES, OF MEOHANICSVILLE, NEW YORK.

MACHINE FOR DRYING PAPER.

SPECIFICATION forming part of Letters Patent No. 558,301, dated April 14, 1896.

Application filed May13, 1895. Serial No. 549,057. (No model.)

To aZZ whom it may concern:

Be it known that I, LEWIS W. NOYES, a citizen of the United States, residing at Mechanicsville, in the county of Saratoga and State of New York, have invented certain new and useful Improvements in Machines for Drying Paper, of which the following is a specification.

This invention relates to an improvement in paper-drying machines; and it consists in the novel features of construction and relative arrangement of parts hereinafter fully described in the specification, clearly illustrated in the drawings, and particularly pointed out in the claim.

Reference is to be had to the accompanying sheet of drawings, forming a part of this application, in which like characters are used to indicate like parts wherever they occur.

Figure 1 shows in longitudinal section a paper-drying machine constructed in accordance with my invention. Fig. 2 represents a cross-sectional view on the line 2 2 of Fig. 1, looking in the direction of the arrow. Figs. 3 and 4 are detail front and side views, respectively, of an adjusting-roll and its supporting-arms.

Prior to my invention it has been customary to coat one side of a sheet of paper, dry and reel the same, and afterward to repeat the process and coat the opposite side of the paper. This procedure is slow and expensive, for apart from the extra labor required there is always a large per cent. of waste. By my invention these defects are overcome and I am enabled to coat and dry both sides with one reeling in a continuous operation and at a high speed, varying from one hundred and seventy-five feet per minute to two hundred and fifty feet per minute, or even higher.

In the drawings, (see Fig. 1,) a represents a portion of the paper-drying machine of the construction and arrangement fully set forth in a patent granted to me October 29, 1889, and numbered 413,728.

a represents the roll of paper; (t the paper; a (t the carrying-rolls; a the brush. After one side of the paper has been coated and dried in machine a it is led back under machine a to machine I), where the other side of the paper is coated. This machine I) is also provided with paper-carrying rolls a a and brush o Both machines are provided with the usual brushes a and laterally-movin g brushes a Dance-rolls a are mounted in the lower part of the machine a, the paper passing under these rolls and over an intermediate roll a". These rolls a are mounted to slide vertically to allow for shrinkage of the paper. After the paper is coated in machineb it is led to the drier b.

b is a conveyer supported by rolls b suitably mounted on the framework of the machine. Suitable tension on this conveyer is maintained by means of an adjustable roll b. Any desired means may be employed for adjusting this roll to establish the desired ten- 7 sion upon the conveyer. I may employ springs or set-screws. The conveyer at the end of the drier next to the coating-machine passes over a small roll 19 and about a large roll b arranged in close proximity to roll If. The power is applied to the conveyer by the roll I) by means of pulleys and belts. (Not shown.)

12 represents an adjustable roll carried by arms b suitably secured to the framework of the machine. A pinch-r0116 similar to the roll b is mounted to the machine at the opposite end from said last-mentioned roll. The conveyer in leaving the upper side of the drier passes under the roll I), over roll 12 near the top of the pinch-roll, and close to the same about said pinch-roll and over roll I7 The rolls b are arranged, as shown, in rows at the top and bottom of the machine.

The parts being arranged as described, the paper a having left the coater, is passed into the drying-machine in the direction indicated by the arrow, is carried by the conveyer beneath a hood I), connected to some suitable source of air supply, by means of which ablast of heated air is forcedthrough nozzles or openings Z2 against the coated side of the paper to dry the same. The paper leaves the conveyer at the point indicated by the letter as, passes under a dance-roll 1, over an adj usting-roll 2, under a fixed roll 3, over an adjusting-r0114, under a dance-r0115, over a fixed roll 6, down to the pinch-r0116 passing between said pinch-roll and the conveyer. From the pinch-roll the paper passes to the reel Z2 Any desired means may be employed for adjusting the rolls 2 and 4. Preferably, however, I employ the construction shown in Fig. 3, by which the roll 11 is adjusted. By

means of the pinch-roll I am enabled to make the speed at which the paper is delivered correspond to the speed at which it is fed into the machine. The (lance-rolls 1 and 5 form an important feature of my invention, since they prevent the breaking of the paper caused by shrinkage during the stoppage of the machine for the removal of aroll of paper. IVithout these rolls, as soon as the machine is stopped, the wet paper shrinks and is broken, causing delay and a considerable loss of material. These rolls are mounted to slide in vertical ways d, and normally are near the bottom of said ways. hen the machine is stopped to insert or remove a roll of paper, the paper shrinks, causing these rolls to rise upward in the vicinity of the position shown in the drawings, and thus prevent the paper from breaking. The length of the slot or ways (Z and the weight of the roll will correspond to the kind of paper to be used and the length of time required for the changing of the rolls of paper. The adj Listing-rolls 2 and l are essential, since the stock is not always uniform, and unless some expedient of this kind is employed it will not reel evenly.

From the foregoing it will be seen that I have invented a highly efficient machine for the purposes at hand.

In practice I am enabled to run the machine continuously at high speed, producing an output of from one hundred and seventy-five to two hundred and fifty feet per minute.

The machine is simple in its construction and not liable to get out of order. It permits of coating and drying both sides of the web of paper in a continuous and uninterrupted operation. As fast as one reel of stock is exhausted the machine is stopped, a fresh reel is inserted in the machine and adjusted, the

two pieces of paper secured together, and the machine is started again. As fast as the roll 11 is filled the machine is stopped and an empty roll is substituted for the filled reel.

The dance-rolls in both operations by yielding upwardly prevent the breakage of the paper. The particular means for adjusting the rolls 2 and a is not material. Preferably, however, these rolls have both a vertical and lateral adjustment.

Having thus explained the nature of my invention and described a way of constructing and using the same, though without attempting to set forth all the forms in which it may be made or all the modes of its use, what I claim, and desire to obtain by Letters Patent, is

In a paper-drying machine, in combination, a paper-coating device, a paper-conveyer adjacent to said coating device, an air-blast apparatus arranged to direct a current of air upon said conveyer and the coated surface of said paper, a pinch-roll about which the conveyer and paper are carried, a reel forreceiving the paper from the pinch-roll, adjustable rolls over which the paper passes located between the air-blast and the pinch-roll, and a dance-roll supported by the paper and located adjacent to the adjustable rolls combined with rolls for holding the paper upon the adjustable rolls, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 0th day of May, A. D. 1895.

LEWIS IV. NOYES. IVitnesses:

WILsoN 1:. BRI'JTTON, JOHN \V. GIBsoN.

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