US1670182A - Paper-making machine - Google Patents

Description

May 15, 1928.

J. a. BECK PAPER MAKING MACHINE Filed ma 19, 1927 2 Sheets-Sheet 1 Ma 15,-1928. 1,670,182 J. s. BECK PAPER "MAKING MACHINE Filed May 19, 1927 2 Sheets-Sheet 2 I 1 i Jbmsflmh:

Patented May ,15, 1928.

UNITED STATES I 1,670,182 PATENT OFFICE.

JOHN SIMPSON BECK, OI MANVILLE, NEW JERSEY.

PAPER-MAKING MACHINE.

Application filed Kay 19, 1927. Serial No. 192,755.

excess moisture to drain from the pulp being v lifted or conveyed from the vat in which the cylinder is located.

It is an object of thepresent invention to combine with a cylinder machine a means for removing the moisture from-the pulp be-- ing conveyed from the vat, thereby allowing the cylinder to rotate at a much higher speed than heretofore and correspondingly increasing the capacity of the machine.

A further object is to provide moisture extracting means which can be adjusted angularly relative to the cylinder so as to act upon the wet pulp at any point desired upon the cylinder. 1

A still further object is to provide simple and compact mechanism for extracting the surplus-moisture from the pulp bemg conveyed by the cylinder, the constructlon of this mechanism beiiig such that it can be conveniently housed within the cylinder.

With the foregoing and otherobjects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts, it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what s claimed, without departing from the splrit of the invention.

In the accompanying drawings, the preferred form of the invention has been shown.

In said drawings,

Figure 1 is a view partly in slde elevation and partly in section of that portion ofa paper making machine constituting the present invention. V

Figure 2 is a vertical longitudinal section therethrough.

Figure 3 is a section on line'33, Figure 2.

Figure 4 is, a perspective view of the suction box and its guides.

Figure 5 is a section through one of the guides on line 55, Figure 2. v

Figure 6 is an elevation of the inner side of one of the guides.

I Figure 7 is an elevation of the inner side 3f a portion of one of the heads of the cylin- The capacity of ma- .as desired.

Referring to the figures by characters of reference 1 designates a vat of the usual construction communicating through a port 2 with a head box 3 such as commonly employed. v

Secured within and extending transversely of the vat is a tubular shaft 4 closed at one end as shown at 5 while the other or open end of the shaft is suitably coupled, as

at 6, to suction pipe 7. The coupling 6 is of.

such construction as to permit rotation of shaft 4 relative to thepipe 7. To one of the projecting ends of the pipe 4 is attached a segmental gear 8 meshing with a gear 9- which, in turn, is secured to a shaft 10. This shaft is journaled in a bracket 11 and has a hand wheel 12 or the like whereby it can be rotated readily for the purpose of actuating gear 9 and the segmental gear 8. Consequently shaft 4 Journaled on the shaft 4 close to the inner sidesof opposed walls of the vat are the hubs 13 of spiders 14. These spiders constitute the heads of the cylinder of the machine and each spider has its marginal portion formed with an annular series of notches 15 in which are seated and suitably secured the ends of parallel bars 16 forming the peripheral por: tion of the cylinder. These bars are spaced apart but are provided with the usual cover mg of wire fabric indicated at 17 forming a foramlnous surface of the cylinder. As shown in Figure 3 one of the hubs 13 can be formed with a sleeve extension 18 journaled 1n one wall of the vat 1. this extension being provided with a gear 19 or the like whereby motion mav be transmitted by any suitable mechanism to the cylinder to rotate the cylinder at .a desired speed.

Secured to the shaft 4 close to the inner sides of the spiders 14 are collars 20 each of which has a guide 21 extending therefrom. The two guides are parallel and. in the-structure illustrated. are formed with dovetail grooves 22 in the inner faces thereof; These grooves are adapted to receive dovetail tongues 23 on the ends of a suction box24 which extends from one guide to the other. Springs 25 are interposed between the end portions of the suction box and the collars 20 so as to hold said box normally pressed outwardly against the inner surface of the cylinder formed by the spaced bars 16. The outer face of thesuction box is open and is curved transversely so as to fit snugly at the .75' can be rotated back and forth sides and ends of the box against the inner surface of the cylinder. The box is separated by longitudinal partitions 26 into separate pockets 27 and each of these pockets has a series of outlets 28 in the bottom thereof from which 'are extended nipples 29. ,The shaft 4 is likewise provided with longitudinal series of nipples 30 opening thereinto and these nipples areconnected by flexible tubes 31 to the nipples 39.

The pipe 7 is adapted to be connected to suitable suction means not shown so that a constant suction is set up through a portion of the fabric 17 into the pockets 27 of box 24 and thence through tubes 31 to the shaft 4. The cylinder is adapted to be rotated as ordinarily and as it travels in the direction indicated by the arrow in Figure 2 the wire fabric will pick up portions of the pulp and carry the pulp film above the level of the body of pulp in the vat 1 which has-been indicated at P. As the pulp film is con-- 'veyed upwardly it will pass over the open face of the suction box 24. Here the current of air being sucked into the box will extract surplus moisture from the pulp preparator to removal of the sheet or film from he cylinder by any suitable means provided for that purpose. Heretofore extraction of the moisture has been effected either by allowing it to drain through the wire fabric or by subjecting the sheet or film to the action of heat or to both of these actions. This old means, however, has been objectionable because it has greatly limited the capacity of the machine inasmuch as the cylinder has necessarily rotated very slowly. B providing a suction box such as disclosed, owever, the speed of the cylinder can be greatly accelerated and the pro duction proportionately increased because, as the adhering pulp is elevated from the vat the excess moisture will first drain there from after which a large percentage of the remaining moisture will be forcibly withdrawn by the action of suction.

The springs 25 serving to hold the box 24 constantly pressed against the inner surface formed by the bars of the cylinder and by employing the gears 8 and 9 and associated parts the box can be adjusted angularly so that the suction will take place at that point where. the best results will be produced while the cylinder is rotating at a given s eed.

What is claimed is:

1. In a paper making machine the combination with a vat and a cylinder mounted for rotation therein having a foraminous surface, of an angularly adjustable suction box within the c linder and opening through a portion 0 the surface thereof.

2. In a paper making machine the combination with a vat and a cylinder mounted for rotation therein having'a foraminous surface,"of a tubular suction shaft constituting'a bearing for the cylinder, means for rotating the shaft independently of the cylinder, a suction box within the cylinder tion of the surface thereof, a tubular con' nection between the suction box and shaft, and means for adjusting the shaft and the box angularly within the cylinder.

4. In a paper making machine the combination with a vat and a cylinder mounted for rotation therein having a foraminous surface, of a suction shaft constituting a bearing for the cylinder, a suction box connected to and rotatable with the shaft, said box being located within the cylinder and opening through a portion of the surface thereof, yielding means for shifting the box radially relative to the shaft to maintain said box in contact with the inner surface of the cylinder, a tubular connection between the box and the shaft, and means for adjusting the shaft and'box angularly relative to the cylinder.

5. In a paper making machine the combination with a vat and a cylinder mounted for rotation therein, of a suction shaft constituting a bearing for the cylinder, 21 suction box connected to the shaft and-bearing against the inner surface of the cylinder, said box having se arate pockets extending longitudinally of tiie cylinder, tubular connettions between the respective pockets and the shaft, and means for adjusting the shaft and box angularly relative to the cylinder.

6. In a aper making machine the combination with a vat and a cylinder mounted for rotation therein, of a suction box within the cylinder opening through a portion of .the surface thereof, partitions within the JOHN SIMPSON BECK.

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