US1727162A - Multiple-wire paper machine - Google Patents

Description

Sept. 3, 1929. P. ERKENs 1,727,162

MULTIPLE WIRE PAPER MACHINE Filed Jan. 23, 1925 17m/enfer:

fa JMJ/55M Patented Sept. 3, 1929.

UNITED STATES-PATENTfoFFlcE. ,y

PAUL Enxnns, or DUREN, GERMANY.

MULTIPLE-WIRE PAPER MACH'INE.

Application filed January 23, 1925, Serial No. 4,250, and in Germany November 21, 1924.

My invention relates tol multiple wire paper machines.

It is an object of my invention to provide a paper making machine in which a plurality of units, each provided wlth a Fourdrmier Wire, that is,a wire cloth for formlng a paper web, are combined with a main wire which may also carry a web. The web or webs from' the several units are deposited 1n succession on the main wire or on the web carried thereon, so 'that at the end of the machine a combined web is formed, the number of webs therein being equal to the number of units plus the webvon the'maln wire, if there is any. The several units cooperating with the m'ain wire are inde ndent from one another and the webs leaving sald units are subiected to the action of s uctlon boxes arranged below the front rolls of each unit. f

Preferably all the units and the main wlre are subjected to shaking motlon in the same direction and in parallel and the compensating lshaking motion is imparted to the wire only at the rear of the last unit. r As the units are arranged above the main wire, there is no danger o f the. web b ecoming detached from the ,mam wire as 1s the case in the existing machines where the web adheres to the lower face of the wire.

In the drawings aiixed to this specification and forming part thereof, a machlne em- .bodying matica ly by way of example.

In-the drawings,

Fig. 1 is a partly sectional elevation, Fig. 2 is a plan view of my machine, and Fig. 3 is an end elevation viewed from the left in Fig.,1. y Referring now to the drawing, A 1s the front main frame stay of the machine which resembles a at the left o the frame A and supprtln mechanism for actuatingm machine, as Wi 1 be described below. 11 is t e table of a size carriage, not shown, 10 is a front cylinder arranged in front of the portal A, a. rear cylinder beingl provided at the rear end of the machine, which .isnot shown, 13, 13 and 0 14, 14 are supporting and guiding rollers for the upper and lower reaches of the main Fourdrihier wire 1, 15, 15 are the bars of a shaking frame, 18, 18 are stationary bars to which the bars of the shaking frame are my invention is illustrated diagramportal, B is a 'frame arranged -V 'pivoted at 19, 19, and 12, 12-are clamping cylinders arranged in suitable bearings 12 at the end of the shaking fram'e just before thepivots 19, 19.

2, 3 and 4 are separate units carried inA 'suitable frames 17 Whicha're built up on the. frames 15. Each unit comprlsesa front cylinder 5 the shaft 16 of which is carried 1n .slotted bearings of the frame 17, a rear cylinder 6, a wire 7 running on said cylinders, and a suction box 8 at the rear of the cylinder 5. lEach unit is supplied with'paper pulp from a suitable hopper, not shown, and a web is formed on each unit, and combined with a web on the main wire^"1. The direction in which the webs on the several units and the web on the main wire 1 are moving, is indicated by the arrows in Fig. 1.

Suction boxes 9, 9 are arranged below the main wire 1 at the points where each unit -delivers its web to the main wire 1.

20 is a driving shaft extending along the shaking frame 15, 15, 21 are eccentrics or cams on` the shaft 20, 22 are rods taken from the eccentrics to one'of the bars 15, 23 and 24 are conical pulleys in the frame B, the

25 is a belt connecting the two pulleys. Ro-

i pulley. 24 being secured on the shaft 20, and

tation is imparted to the -pulle 23 by suitable means, not shown, and t e belt 25 is shifted on its pulleys 23, 24 by other suitable means, not shown.

By the means described which are below the units 2, 3, 4 are the frames 15, 15 shaken` 1n the same direction as' the units.

By depositing the webs from the several unlts on the wire or on the Webs which are already on the sieve, paper or card board consistin of a plurality of webs is obtained, the webs eing connected with each other by action of the4 suction boxes.

triplex paper for paper bags the first unit 2 will deliver to the main wire 1 a web of high-class pulp of any desired color, for in stance white. This Web is subjected to thc action of the first suction box 9 and fed to the unit 3 by the Wire 1 which deposits thereon a web of low-grade pulp. Both' webs are firmly connected by the action of the second suction box 9 and fed to the last unit 4 which deposits on the two webs a web of high quality pulp which ma be blue. This web is also firmly connecte with the If it be desired for Y instance to make Y,

provided, for instance, the first units 2- may be dispensed with and replaced by the size carriage and the table-11.

. which are fed by the main wire 1.

- belt conveyor.

In the same manner thick card board can be made on the machine With a corresponding number ofunits, each of which delivers a web tothe main wire 1 or the web or webs Card board of any desired thickness can be manufactured in this manner as there is no danger of the web becoming detached from vthe main wire which at the same time actsv as a the lower surface of the main wire, as in the machine heretofore used, the danger of the Where the web adheres to.

web becoming detached, obviously increases in proportion .to its thickness.

I wish it vto be understood that I do not desire to be limited to the exact details of construction shown and described, for obvious modifications will occur to a person skilled in the art.

A multiple wire paper machine compris- ,ing a principal Fourdrnier wireand a plurality ofmachine units each comprising a subsidiary wire and adapted to prepare a web ofv pulp which is delivered to said Fourdrinier wire, said units being adapted lto be shaken in unison and in parallel with each other and with that reachv or the Fourdrinier wire with which they are cooperating.,

lIn testlmony whereof I aliix my signature.

PAUL ERKENIS.

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