US924643A

US924643A - Paper-machine.

Info

Publication number: US924643A
Application number: US47556209A
Authority: US
Inventors: Samuel E Dart
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-02-02
Filing date: 1909-02-02
Publication date: 1909-06-15
Anticipated expiration: 1926-06-15

Description

S. E. DART.

PAPER MACHINE. APPLICATION FILED FBB.2,1909.

924,4,3. Patented June 15, 1909.

IIIIIIIIH j "mun:

SAMUEL E. DART, OF- SOUTH MANCHESTER, CONNECTICUT.

PAPER-MACHINE Specification of Letters Patent.

Patented June 15, 1909.

Application filed February 2, 1909. Serial No. 476,562.

To all whom it may concern:

Be it known that I, SAMUEL E. DART, a citizen of the United States, residing at South Manchester, in the county of Hartford and State of Connecticut, have invented a new and useful Paper-Machine, of which the following is a specification.

This invention relates to the manufacture of paper of any character from stock containing more or less fibrous binder, on a single or multiple cylinder paper making machine.

Paper made on the common cylinder machine has more or less grain, that is, its

fibers extend parallel in the direction of the length of the web. Such a condition renders the paper comparatively weak for, while such paper does not easily tear across the grain or bers, it tears or splits easily in line with the length of the fibers, or with the grain. This results from the fact that the fibers, or the fibrous constituents of the 'binder of the pulp, travel longitudinall or lengthwise wit the current, as the stu flows in the vat, and meet the cylinder end on, and, as the cylinder revolves, are drawn parallel onto its periphery so as to lie lengthwise with respect to their movement, or transversely of t e axis of the cylinder.

The object ofthis invention is to provide a c linder machine with very simple, cheap an eflicient means, whereb the direction of travel of the fibers of the binder in the ulp or stuff, as they flow in the vat, wi be changed or deflected so the fibers will be presented sidewise to the cylinder and will e picked up thereby and laid on its surface at an angle'to the line of travel, that is, parallel with or obli ue-to the axis of the c linder, and thus will be interwoven to sue an extent that the web formed will have no perceptible grain or easy direction of rupture. This object is attained by arranging 1n the vat, in front of the cylinder, deflecting plates of suitable shape, which as the stock flows past change the directions of the fibers with respect to the natural direction of their travel to and onto the cylinder, so they will be laid at .angles with each other and interwoven in the web formed on the cylinder.

Figure 1 of the accompanying drawings shows a plan of a small portion of one end of a cylinder machine, provided with means which embody this inventiom Fig. 2 shows a vertical longitudinal section of the same, on 'the plane indicated by the dotted line 22 on Fig. 1. Fig. 3 shows a vertical transverse section on the plane indicated by the dotted line 3-3 on Fig. 1. Fig. 4 shows on larger scale, an edge view of one of the deflecting plates that may be used. Fig. 5 shows a side view of the same; and Fig. 6 illustrates a mechanism by which the de fleeting plates may be vibrated or reciprocated transversely of the vat.

A single cylinder machine is illustrated in the drawings, although the invention is equally applicable to a multiple cylinder machine.- The vat 1 of the machine shown is of ordinary size and shape and of common construction and materials. Mounted on the shaft 2, which extending. transversely of the vat, is supported as usual by bearings in the side walls, and is designed to be rotated b the usual means, is the cylinder 3. This 0 inder is of the customary construction am? is designed to collect pulp from the vat and form it into the web which is couched in the because it forms no art of the present invention) from the c inder.

In front of the cylinder is the usual breast or dam 4, over which the ulp flows as it passes to the cylinder. Be ow the cylinder 1s the common scroll 5 with back-fall 6, over which the ulp, that is not collected upon the c linder, flows to the outlet 7 in the side of t e vat, and is pumped back in the usual (in the breast of the machine illustrated, and in the pass-way for the pulp or stuff, 1n front of the cylinder, are mounted four superosed rows or series of deflector plates 8. Each of these deflector lates is preferabl curved, as shown, and all the plates in eac row are arranged so as to curve in the same direction, but theplates of each alternate row are placed so as to curve in opposite directions. These deflectorplates are desirably arranged in a frame 9 formed of top and bottom plates, and the plates 10- which separate the rows or series. Oneway of fastening the deflector plates is to rovide them at both ends with lugs 11, as s own in Figs. 4

usual way by the ordinary roll (not shown actuated by and 5, and to insert these lugs in perforations in the frame plates.

The frame carrying the deflector plates may be secured in position on the dam at any desired distance from the front of the cylinderby set screws 12, which pass through the side walls of the vat into the frame. If desired, the frame carrying the deflector plates may be mounted on an arbor 13, and this arbor can be provided with a rocker arm 14, that may be moved back and forth by a rod any suitable means. With this constructlon, when the set screws'are loosened, the frame and the deflector plates may be given a slight oscillation or vibratory movement on the axis of the frame. The frame carrying the deflector lates could, if desired, as shown in Fig. 6, be arranged between guides 16 extending transversely above the breast between the side walls of the vat.

18, or other means driven by suitable mechanism, for giving the frame a vibratory movement, or a longitudinal.reciprocation transversel of the breast and parallel with the axis 0 the cylinder.

The positions of the fibers, as they are deflected, with respect to the direction of their flow wlth the stuff passing over the breast, will be determined b the direction of the curved surfaces of t eends of the plates with which they engage as they flow ast the lates to the cylinder. As a result 0 the emp foyment of such means as are described, when the stock flows over the breast and to the cylinder, the lowest row of deflector plates will direct its course and change the position of the fibers with respect to the natural direction of flow so they are inclined to meet the surface of the cylinder broad side or at an angle, and thus be drawn on parallel to or spiral with relation to the axis of the cylinder. abovewill cause the fibers to lie on the cylin- ,der spirally in the opposite direction. Those next. above will direct the fibers to the surface of the cylinder the same as the lowest, while the highest plate will direct the fibers as do the lates next to the lowest. Any desired num er of deflector plates mav be used, and any number of tiers of these plates may be employed, and they may curve more or less or may even be straight, as long as they are arranged to alter the natural position of the fibers with respect to the direction of their travel as the stuff flows past the plates to the cylinder.

By reason of the conditions im osed on the fibers by the arrangement of de ector plates shown and described, the fibers instead of meeting the surface of the cylinder end on, and being drawn onto the cylinder parallel The frame thus mounted could be connected by a link 17 with a crank l he deflector-plates immediately.

and in line with the direction of travel of the surface of the cylinder, are presented sidewise in different directions, to the cylinder so that some are drawn on parallel with the axis of the cylinder and at right angles to the direction of movement of the surface of the cylinder, and some are drawn on spirally in one direction and some spirally in another direction, as the cylinder rotates. This causes the binding fibers to become interwoven in the web formed on the cylinder so that the paper which is produced from the web that is couched from the cylinder, has no distinctive grain, it will not tear any easier one way than another, and thus is very strong.

Curving the deflector plates in the manner shown, more or less restricts the space through which the stock flows and this consequently increases the speed of flow of the stock 'ust before it reaches the cylinder so that t e fibers are more inclined to be laid.

on the cylinder in the desired manner than would be the case if the speed of flow was not increased in this manner.

The invention claimed is:

1. The combination in a paper making machine,,of a cylinder, and a series of curved lates arranged edgewise in the pulp-way in fiont of the cylinder.

2. The combination in a paper making machine, of a cylinder, several series of plates superposed edgewise in thepulp-way in front of the cylinder.

3. The combination in a paper makin machine,of a cylinder, a series of curver lates arranged edgewise in the pulp-way in fiont of the cylinder, and a series of plates curving in the opposite direction arranged above the first mentioned series.

4. The combination in a paper making machine, of a cylinder, several series of plates arranged edgewise one above the other in the pulp-way in front of the cylinder, and plates separating the several series of plates- .5. The combination in a paper making machine, of a cylinder, a frame extending across the pulp-way in front of the cylinder, plates arranged ed ewise in said frame, and means for moving t e frame.

6. The combination in a paper making machine, of a cylinder, a frame extending across the pulp-way in front of the cylinder,

lates held edgewise by the frame, and means for oscillating the frame.

7. The combination in a paper making machine, of a cylinder, a frame extending transversely of the pulp-way in front of the cylinder, plates supported edgewise by the frame for directing the flow of pulp to the cylinder, and means for reci rocating and oscillating the frame bearing t 1e plates.

8. The combination in a paper making machine, of a cylinder, a frame extending transversely of the pulp-Way in front of the inclined in one direction, and a superposed cylinder, plates arranged edgewise inwthe series of plates inclined in the opposite diframefor directing the flow of pulp to the rection, in front of the cylinder.

cylinder, and means for securing the frame SAMUEL E. DARTQ 5 the desired distance from the cylinder. Witnesses:

9. The combination in a paper making JOSEPHINE M. STREMPFER,

machine, of a cylinder, 21, series of plates I HARRY H. WILLIAMS.