US581732A - Forming-cylinder - Google Patents

Description

(No Model.) w m 3:1. U KEENEY. FORE/KING CYLINDER.

No. 581,732. Patented May4,1897.

urinate n. Kn LTEY, or ANTIOCH. CALIFORNIA.

F0HWHNG-GYLINDER ,EJPEGIFICATION forming part of Letters Patent No. 581,732,11atd may 4, 189?- llpplibatiou filed November 5,1895. Serial It's. 568,000; (No model.)

To alt whom it may concern.-

Be it known that l, MARBLE D. Keener, a 'tizen of the United States, residing at Antioch, in the county of Contra ,osta and State of California, have invented certain new and useful linprovemcn ts in howling-Cylinders; and I do declare the following to bee full,

clear, and exact description of the invention,

such as will enable others skilled in the artto which it appertains to make and use the same.

My invention. relates to improvements in forming-cyliinl-crs designed for use in cylinder paper-making machines; and it has for its general object to provide aforming-cylinder which is adapted to draw water from the sheet of pulp and to hold the pulp against falling or sliding back into the formingwat, and is, in consequence of this, capable of forming a thick and solid sheet with firmly-interwoven fibers and one which will not be liable to he watermarked or blistercd when couched, and is also capable of being run with the machine at a high rate of speed, which is an impertant i'lGSidQl'EthlTll.

Other objects and advantages of the invention will be fully understood from the following description and claims when taken in connection with the annexed which Figure 1 is a view, partly in elevation and partly in section, of my improved cylinderin its operative position. Fig. 2 is a transverse section taken in the plane indicated by the line a: a: ct Fig. 1. Fig. 3 is an enlarged per spective view, partly broken away, of one of the sections of the stationary valve removed; and Fig. i is a perspective view of one of the rotary valve-cages or rings.

Referring by letter to said drawings, A indrawings, in

dlcates the side walls of the forming-vat of a a cylinder paper-making machine, and B indicatcs the central tube of my improved forming-cylinder, which may have one or both of its ends open, as shown, for a purpose presently described. This tube B is journaled in the side walls A of the forming-vat, as shown, and it is provided at intervals in its length with three (more or less) circular series of apertures c to admit water and air tothe stationary valve-sections U, prcscntlydescribed.

D indicates circular valve-cages or perforated which are arranged in the tube B so that their perforations I) register with the perforations a,-as better shown in Fig. 1.

These cages or" rings D are detachably con-.

nectcd to the tube B by screws 0, or in any other suitable manner so as to enable them to turn with said tube, and such connection, as will be readily observed, admits of the rings or cages being readilyremoved from the tube for repairs or fonany other purpose without disturbing any of the other parts of.

the cylinder and also permits of the rings or cages being as readily replaced and secured in position.

The stationary valve-sections O, which are, as stated, arranged within the rings or cages D, may be-of any construction suitable to the purposes of my invention, but I prefer to com struct them as better shown in Figs. 2 and 3 of the drawings. As so constructed thevalv'esections respectively comprise the parallel rings d, which conform to the interior of the rings D, so as to permit the same to freely turn, and are provided with the inwardly-extending flanges e and the preferably-curved connecting wall f, which serves, in conjunction with the flanges e, to form a pocket or'receiver E, having an induction-opening has shown. These pockets or receivers E of the several valve-sections C are arranged in the position shown in Fig. 2 with respect to the center and direction of rotation of the form ingcylinder for a purpose presently described, and they are connected by the tubes F, which may be formed integral with the valves or may be formed separately and screwed into or otherwise connected to the side walls e of the pockets or receivers, as desired. The several receivers or pockets E are thus connected togethe r,and one or both (preferably both) of the end receivers are connected by pipes G with a suction-pump (not illustrated) which may be of the ordinary well-known construction. I

II indicates the revoluble portion of my improved cylinder, which may be of any suitable construction that falls within the scope of my invention, but which'preferably comprises the tube 13 and valvcrcages or rings D, described. the end rings I, which are connected to and surround the tube B, the longitudinally extending and tangentially disposed partitions J ,which are fixedlyconnected to the tube Band are arranged between the openings a.in said tube, the inclined walls 1?, arranged between the partitions vJ and connected to thetube B and pitched toward the openings a in said tube B, seas to quickly lead the water which enters-said inclosures formed by the partitions J into said openings v the wire or wires M, which surround the partitions J; throughout the length of the cylin- 2o der and are sunk in said partitions, as shown,

. so as to be flush with the outer edges thereof.

The cylinder also preferablycomprises suitable (packing or' washers N, which are inter- -pose between the endv rings I and the side walls A of the vat and are designed and adapted to prevent'leakage between thetube B and thelsaid side walls A. Collars'R are 1" also provided upon the tube Eat the outer "sides of the vat wallmas shown, in order to cylinder in the van, -In the practice of the invention the parts are so made and fitted'that when'airand waterare drawn into one'of the inclosures formed '3 5 by the longitudinal partitions .1 they will pass throu h the apertures 01. in tube B, the aper- -tures in cages or rings'D, and into the receivers or pockets E of the stationary valve- .sections, and fromthence'to the su'ction o'r 4o exhaust pump andwill' not be liable to escape in transit. The receivers E of the stationary valve-sections are by preference of such av size that they will at one time communicate with four (more, or less) of the openings b of each ring D,.so.a.s to enable the suction or exhaust pump to create a suction through four of the inclosui'es formed by the partitions J at one time.

The valve induction-openings may be diminished and increased insize by the introduc'tion and removal of a piece, (not illustrated,)' so as to communicate with more or less of the induction parts; I

The. 'mproved cylinder described is ar- 5 5 ranged in the forming-vat of a cylinderpapermakingmachine-so that the water-line comes to about the point-indicatedby the dotted line in Fig. 20! the drawings, In consequence of this it will be observed that the sheet of pulp taken up bythecylinder will be subjected to suction, both below and above the water-line and will be held to the cylinderby'such suction, so that the water will be drawnfroni the sheet before it pass'esto the 6 5 eoucher, which is an important advantage, as

it obviates watermarking, blistering, and

other difliculties generally attendantnp'on V of the intermediate rings K, so asfto be flush with the outer edges of said rin gs, and" prevent longitudinal movement'or play of the observed that the suction,.by drawing and holding the sheet against falling back into the vat, forms a thick and solid or compact sheet andone having securely-interwoven fibers, and also permits of the cylinder being revolved at a high rate of speed, which tnaterially in creases the capacity of the machine of which it forms a part, and is in consequence a highly-important advantage.

As will be readily observed by reference to Fig. 2, the tangential disposition of the partitions J throughout their width is desirable, for the reason that when each inclosu rs reaches a position where it communicates with the receivers or pockets of the valves its lower partition or wall J will be pitched downwardly toward the openings (tin the tube B, so as to facilitate the entry ofthc water into said openings aand the valve. Again,

the tangential disposition of the partitions .l

is highly desirable, for the reason that it enables them to gather water to the openings n the tube B and valve more rapidly andalso overcomes the centrifugal motion which, it

the partitions were otherwise arranged, would repel the water from the cylinder.

' It'will-be further observed that the sheet is formed in the usual manner, the water passing through the screen and openings in the tube B into the said tube and to the usual on ha-ustpnnlp. This continues until. the suction construction at the back of the cylinder is reached, which suction construction is so arranged that the suction will commence at {a foot (more or less) below the water-line and is continued untilthe sheet'passes under the coucher.

In virtue of the factthat the partitions .l

facilitate the entry of the water into the open ings a and also serve to prevent the water "the couching fif' he sheet. Again, it wili he from being repelled from the cylinder by centrifugal action it will be appreciated. that the.

cylinder may be rotated at a comparatively high rate of speed, which is a desideratum in this-class of devices. 7 1

Having described my invcntion, what l, 7 claim is-.

1.. Ina formingcylinder for paper-melting machines, the combination of the valve-see tions respectively comprising the circular rings and the pockets or receivers connected with the rings and having induction-opens ings, pipes connecting the pockets or receptacles-of the several valve-sections, a pipev rzo rations-of the tube, the outer screen, and longitu'd-inal partitions arranged between the screen and tube, substantially as specified.

2. In a forming-cylinder for cylinder papermaking machines, the combination of the stationary valve pockets or receivers connected together and provided with induction-openings 2 mi adapted to be connected with a sucit/n device, andarevoluble portion surrounding and adapted to revolve around the valve receivers or pockets and comprising an outer screen, longitudinal partitions, between the valve pockets or receivers and the screen, said partitions being disposed tangentially throughout their idth and forming inclosures adapted tocommunicate with the openings in the valve pockets or receivers and walls arranged between the partitions and pitched or inclined in the direction of the length of the cylinder and toward the openings in the receivers or pockets, substantially as specifled.

3. In a forming-cylinder for cylinder papermaking machines, the combination of the valve-sections respectively comprising the circular rings and the pockets or receivers connected with the rings and having induction-openings, pipes connecting the pockets or receptacles of the several valve-sections, a pipe for connecting one of the valve pockets or receptacles with a suction device and the revoluble portion comprising the tube having the circular series of apertures a, rings ar-' ranged within and connected to the tube and having perforations communicating With the perforations a, of the tube, the outer screen, the longitudinal, tangentiallydisposed partitions arranged between the screen and tube and forming inclosures communicating with openings, in tube, and the inclined walls arranged between the partitions and pitched toward the openings a, in the tube, all substantially as and for the purpose set forth.

4. In a forming-cylinder for cylinder paper.- making machines, the combination of avelvesection comprising the circular rings and the pocket or receiver connected with the rings and adapted to be connected with a suction device, and a revoluble portion having a tube provided-With a circular series of apertures a, and a ring arranged Within and connected to said. tube and surrounding the rings of the valve-section and having perforations com municating With the perforations of the tube, substantially as specified.

In testimony whereof I aihx my signature in presence of two Witnesses.

MARBLE D. KEENEY.

Wi nesses:

FRANK D. Bnaonrsronn, K. F. MATTHEWS.

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