USRE7517E - Improvement in apparatus for lining paper board - Google Patents

Description

H. L. PALMER. Assignor by mesne assignments to BENJ. G. FAUROT, Trustee.

APPARATUS FOR LINING PAPER-BOARD.

No. 7,517. Reissu ed Feb. 20,1877.

UNITED STATES PATENT OFFICE.

HENRY L. PALMER, OF BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS. TO BENJAMIN O. FAUROT, TRUSTEE.

IMPROVEMENT in APPARATUS FOR LINING PAPER BOARD.

Specification forming part of Letters Patent No. 87,359 dated March 2,1669; reissue No. 4,951, dated June 18,, 1872; reissue No. 5,471, dated July 1, 1873; reissue No. 7,517, dated February 30,1877; application filed November 11, 1876.

o all whom it may concern: tion, and it is an important one to insure the Be it known that I, HENRY L. PALMER, successful lining of straw-board with thin linformerly of Still water, Saratoga county, and big-paper by machinery. State of New York, and now of the city of For the purpose of economically and profit- Brooklyn,county of Kings. State of New York, ably lining straw-board thelining-paper should have invented new and useful improvements be as light in weight as possible. in machinery for uniting thin paper and straw- In order that persons skilled in the art may board or such like materials by means. of understand, make,and use said improvements, paste; and I hereby declare that the follow- I will proceed to describe the mechanism as it ing is a full, clear, and exact description and was constructed, referring to the annexed specification of the same, reference being had drawings, in whichto the annexed drawings. Figure 1 represents a vertical longitudinal Previous to my present invention" strawr section of the machine; and Fig. 2 represents board had been lined with thin paper by maan end elevation, partly in section. chiner'y which applied the paste to the thin A is a paste-'reservoir. B is a paste-roll, arpaper, united the same with the straw-board, ranged to revolve in said reservoir. 0 is a and then dried the united layers by means of distributing-roll, arranged to revolve with the a drying-cylinder; also, paste had been appaste-roll B, and separated from said roll by plied to paper by passing it between two rolls, a film of paste. D is a feeding press roll, for by which the paste was partially dried, freed pressing. pasting, and feeding the thin liningfroni lumps, and spread on the paper in an paper. It is caused to revolve on its axis by even and uniform film. the motive power of the machine by means of The object of my invention was to combine -a belt, its circumference moving at substanthis latter class of pasting apparatus with a tially the same speed as the pressing or unitpressing or uniting roll, in connection with a ing roll L, or the drying-cylinder H. and in drying cylinder, for the purpose of lining connection with the distributing-roll G, bestraw-board with thin lining-paper; and to tween which and the roll 0 the paper passes this end my invention consisted in combining to receive the paste from roll 0, and by the a paste-reservoir, a paste and distributing resistance of which the paste is forced against roll,afeeding-press roll, for pressing, pasting, the paper, and the paper is fed forward. his. and feeding the thin lining-paper, with aroll a self-adjustable pressing-roll, under the roll for pressing and uniting the straw-hoard to 1), between the upper surface of which and the thin lining-paper as they pass to the'drythe lower surface of the roll I) the two layers ing-cylinder, thefeeding-pressroll being driven of paper a ndaconti1n1ons belt of felt, I. pass, by the motive power at substantially the same and by the pressure of which the two layers circumferential speed as the circumferential of paper are united. The adjusting-springs speed of the pressing or uniting roll and dryare seen at M. Gr G are also pressing-rollers, ing-cylinder, or the speed of the straw-board. between which the felt and t c two layers of By the said combination I was enabled to press paper are caused to pass. H is a drying cylthe paste on the thin lining-paper between the inder or roll, into which steam or heated air pastedistributing roll and the feeding-press is introduced for the purpose of drying the roll, so as to feed the thin lining-paper forward two layers of paper as they pass under its sur-' without the assistance of the straw-board, and face, being pressed against it by pressing-rolls prevent the straining or breaking of the thin Z Z. I I are calender-rolls, and K K are re wet lining-paper, which is not able to stand volving knives for cutting the nnitedanddried .the strain of revolving the paste-applyin g rolls paper into sheets.

when pulled by the Straw-board at the line of The roll of thin paper to be supplied with l) between the O- paste is hung on the roll E, which has bear- 1 am not aware that the above result was in gs in the sides oi'if'the frame.

ever accomplished before my present inven- The rollers B and D were made concave, and

ward by the places. e

To revolve the rolls I have applied pulleys on the end of the shafts. to which the 'rolls D and H and K are attached, and have connected them by means of belts, the other rolls being revolved by frictional contact with the fet, or paper, or the adjacent rolls.

The operation is as follows: Paste is supplied to the reservoir A in such quantity-and consistency that it will be taken up by the roll B as it revolves, and be carried between the rollers B and G, where it ispressed and deposited on the surface of the roll 0 in a uniform film. It is then carried on thesurface of the roll 0 to the paper, which .is passing.be--

D and O,'from a roll hung on the tween rolls shaft E, and deposited on it .by the pressure of the roll 0 against the paper," resisted by the roll D. .lhe-pasteboard is fed in.a con tinuous ribbon, or in sheets, and carried forfelt P to the under side of the roller D, where it meets the paper. The two materials are then passed through with the felt between rollers D and L, the spring M accommodating for any difference there may be in the thickness of the pasteboard or paper.

The object of the concave and convex rollers is seen at this point by giving a rounding or convex form to t e surface to 'which the paper is applied to compensate for any contraction of the wet paper. The material then passes forward .in the direction indicated by the-arrows between rollersG G, where itreceives additional pressure around .the drying-cylinder H, where it is dried thence through the calenders I I, where it, is smoothed and straight;

the rollers O and convex: but I do not con-- fine myself to the use of concave and convex, rolls, as cylindrical rolls may be used in their ened; thence between knives K K','which will sever the sheets, or cut to any desired size. If it be desired to paste the board instead of the paper, it will be done by changing the direction of the paper, and, as in this figure, bring it directly from E to G G, as indicated by the dotted lines. The pasteboard coming from between rollers D and L, where it has been pasted, meets the paper between G G, after which it will proceed as in Fig. l.

I do not claim the drying-cylinder H, calenders I I, or the knives K K; bntI claim them only in combination with the other parts specified. V Having now described'the said improvements, what I claim, and desire to secure by Letters Patent, is-

1. The combination, in a straw-board liningmachine, of a paste-reservoir, a paste-roll, a

distributing-roll, and a feeding-press roll, for

feeding, pasting, and pressing the thin liningpaper, witha roll for bringing the straw-board in contact with the lining-paper and uniting them, all constructed and operating substan-- tially in the manner and for the purposes set} 2. The comhination,in a straw-board liningmachine, of a paste-reservoir, a paste-roll, a distributing-roll, and'afeeding-press roll, for feeding, pasting, and pressing the thin liningpaper, with a roll "for bringing the straw-board in contact witlvthe lining-paper and uniting them, and a drying-cvlinder, allconstrncted and operating substantially in the manner and for the purposes set forth.

HENRY L. PALMER. Witnesses:

PHILLIPS ABBOTT, M. Frrzomnone.

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