US659283A - Cylinder paper-machine. - Google Patents

Description

No. 659,283. Patented Oct. 9, I900.

H. L. BEVERIDGE & c. E. rave.

CYLINDER PAPER MACHINE.

(Application filed Apr. 80, 1900.) (No Model.)

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WITNESSES IN VENTOR I i I m: uoams vzTms w. FNOrO-LITNQ.. wAsmmsToN. u. c.

\ UNITED STATES PATENT OFFICE.

HENRY L. BEVERIDGE AND CYRUS FRYE, or INDIANAPOLIS, INDIANA.

CY LIN DER PAPER- MACH l NE.

SPECIFICATION forming part Of Letters Patent No. 659,283, dated'october 9, 1900.

Application filed April 30, 1900. Serial No. 14,984. (No model.)

To all whom it may concern:

Be it known that we, HENRY L. BEVERIDGE and CYRUS E. FRYE, citizens of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented certain new and useful Improvements in Oyl-, inder Paper-Machines, of which the following is a specification. I

In that class of paper-making machinery in which a cylinder-mold revolves in a vat of pulp the ordinary way of increasing and de-' creasing the width of the sheet of pulp has been to place upon the ends of the cylinder-j mold a deckle,which isa fabric Wound around such portion of the wire-cloth constituting the outer wall of the mold as is necessary to reduce the length of its effective portion to the desired width of the sheet of paper. The placing of these deckles is a slow and tedious operation and one which requires great care in order that all the rolls of a series shall be covered substantially alike. Indeed, it is the practice in order to avoid improper results to make the space between the deckles slightly wider on the succeeding rolls of the series, as is well understood by those skilled in the operation of such machines.

The object of our said invention is to provide substantially permanent, continuous, and adjustable deckle-strips,so that the width of the sheets of pulp may be easily and accurately controlled, as will be hereinafter more particularly described and claimed.

Referring to the accompanying drawings, which are made a part hereof, and on which similar reference characters indicate similar parts, Figure l is a top or plan view of acylinder paper-machine provided with decklestrips embodying our invention, the wet felt or carrying-off belt being omitted; and Fig. 2, a view, partly in section and partly in side elevation, as seen from the dotted line 2 2 in Fig. 1.

The machine as a whole is in the main of an old and well-known form, but may be briefly described for the sake of clearness.

The pulp flows into the receptacle 1 and thence passes through an orifice in the partition 2 into the vat 3, the force of the flow being checked by the roll 4:. p The pulp in the vat ordinarily when the machine is in operation stands at about the level of the dotted line 5, while. the Water inside the cylindermold is drawn off rapidly enough to keep it down to about the level of the dotted line 6. The cylinder-mold '7 rotates ona shaft 8, and its wire-cloth surface 9 receives the flow of pulp, and the suctionoccasioned by the water passing throughithis wire-clothfrom the outside to the inside (on account of the lower level on the inside, as above stated) causes the pulp to adhere to the wire-cloth in athin even sheet,which passes around the mold and off onto the wet felt 10, it being caused to adhere to 7 said .wet felt by the couch-roll 11 in the manner well understood by those skilled in the art.

The vats are supported by movable legs 12 instead of resting on the floor, as is common, in order that the deckle-strap may be upon occasion removed and inserted properly, which may be easily done by taking out these legs one afteranother and passing the strap in between them, such strap. being commonly made endless, as will be hereinafter more fully described. I

- The cylinder-molds are or may be of any ordinary construction, except that instead of the wire-cloth 9 extending entirely from end to end of said cylinder we place upon each end thereof a band of smooth metal 13, and thus increase the length of these molds by the sum of the widths of the two strips of metal. As these strips are imperforate, no water passes through them, and consequently there is no suction to cause pulp to adhere to their surfaces, and therefore the width of the sheet of paper is at thewidest only the length of the portions of the molds between these metal bands.

The deckle-straps 14 pass around a considerable portion of the circumference of the cylinder-molds and are guided and held against the surface thereof by small drums 15, as shown in the drawings, and thus bear upon all that portion of the circumference of said molds which is immersed in the vat. These deckle-straps then pass over other drums 16, 17, 18, and 19, said straps being endless, as shown. The width of these deckle-straps 14 is approximately the same as that of the metal bands 13 at the ends of the cylinder-molds.

The drums 16 are preferably flanged and are mounted on bearings 20, which in turn are mounted on screw-shafts 21, the result being that when said screw-shafts are revolveddescribed, is wholly saved. The rolls 19 are mere tightening-rolls employed for the purpose of keeping the deckle-straps at the proper tension.

The deckle-straps themselves are made of any suitable smooth fabric to which the pulp does not readily adhere.

Having thus fully described our said invention, what we claim as new, and desire to secure by Letters Patent, is-

1. The combination, with a cylinder-mold of a cylinder paper-machine, of a continuous deckle-strap running over suitable drums and passing around said mold at or near the end thereof and of sufficient width to itself cover the desired portion of the mold, and means whereby said deckle-stra-p may be adjusted longitudinally of the mold. I

2. The combination, in a cylinder papermachine, with a cylinder-mold having smooth ends with the usual wire-screen cloth between said ends, of continuous deckle-straps of a width to themselves cover the desired portions of the mold, drums over which said deckle-straps pass, and means whereby said deckle-straps may be adjusted nearer to or farther from each other and off from or onto said smooth ends of the cylinder-mold, whereby the exposed portion of the wire-cloth surface thereof is increased or diminished in length and the width of the sheet of paper being formed increased or diminished at will, substantially as set forth.

3. The combination, in a cylinder papermachine, of the vats, a plurality of cylindermolds running in said vats, and continuous deckle-straps passing over suitable drums and under and against those portions of the peripheral surfaces of the several cylinder-molds which are immersed in the vat, means for adjusting said deckle-straps longitudinally of the cylinder-mold, and means for adjusting the tension of said continuous deckle-straps, substantially as set forth.

4. The combination, in a cylinder papermachine, of a vat, a cylinder-mold having portions of its peripheral surface at the ends thereof smooth and imperforate, two decklestraps one arranged at each end of the mold and passing under the same and formed of sufficient width to themselves cover the desired portions of the mold, drums upon which said decide-straps are mounted, and screwshafts for operating certain of said drums and thus adjusting said deckle-straps nearer to or farther from each other, substantially as and for the purposes set forth.

In witness whereof we have hereunto set our hands and seals at Indianapolis, Indiana, this 25th day of April, A. D. 1900.

HENRY L. BEVERIDGE. CYRUS E. FRYE.

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