US1664722A

US1664722A - Cylinder paper-making machine

Info

Publication number: US1664722A
Application number: US111953A
Authority: US
Inventors: Arthur T Yoder
Original assignee: Individual
Current assignee: Individual
Priority date: 1926-05-27
Filing date: 1926-05-27
Publication date: 1928-04-03
Anticipated expiration: 1945-04-03

Description

@man 3 m2@ 2 @m2 A. 'E1 YODER A CYLINDER PAPER MAKING MACHINE Filed May 27 i926 bz-l VET-1 TEL- e lPatented Apr. 3, 1928.

UNITED `sTA'rlazs'1 A'1ie:1-rr orner.

ARTHUR T. YODEB, OF lMOSIZBI'EE, WISCONSIN.

( YYII'JIN'DEB.y IP APERy-MAKING MACHINE.

Application-med lay 27,

This invention relates to cylinder paper making machines and more particularly to a silencer roll as applied to the vat of a cylinder machine. I

It is an important object of th1s1nvention to provide a silencer roll, or perforated drum, for use with cylinder machines, whereby boiling currents of stock may. be uieted in their flow to the cylinder mold, t us permitting the machine to be run `at higher speeds with the formation. of'a better sheet of paper.

It is a further important object of this invention to provide a cylinder .mold vatA wherein all of the stock going to thecylinder mold is baused ,to pass through a silencer roll for the urpose of quieting the eddy cur- -rents and e ectmg a uniform distribution of the stock. A

Other and further important objects of this invention will bel apparent from the disclosures in the specification and the accompanying drawings.

This invention (in a preferred form) is illustrated in they drawings and hereinafter more fully described.

On the drawings:

Figure 1 is a fragmentary broken top plan view of a cylinder mold vat showing the installation of a silencer roll of my invention.

,Figure 2 is a sectional view taken on line lI-'-II of Figure 1. A

Thereference numeral 1 indicates a cylin-Y der mold vat, preferably madeof heavy lumber tongued and grooved as at 2 and constructed in the usual manner, common in cylinder paper making machine installa' tions. Said vat 1 resembles a rectangular shaped box having a bottom wall 3, a back wall 4, and side walls 5 of the same height as said back wall also preferably formed of heavy lumber tongued and grooved and spaced from the rear walls 4 to form ahead box 21, extends transversely of said vat 1 and terminates a. short distance below thel top of said vat Vwalls 5. A second transverse partition 7,

shaped approximately in an arc oa circle, is spaced from said vertical partition 6 by means of av horizontal piece of timber 8 joined to the top of said partition 6 and` to the rear wall of said partition 7. The upper end of said partition 7 extends a short distance vertically above the horizontal .timber 8 to form a baie 9. Said partition 7 thus forms with the front portion of the vat 1,

4. A vertical.`A partition 6,.v

15126. serial No. 111,953.

`a cylinder mold vat 10 in which a cylinder mold 11 is adapted to be rotatably mounted. Said cylinder mold 11 is ofthe usual construction and is covered with a wire facing 12 on which the web of paper is adapted to be formed.

As is usual, stock enters the space 21 be.- tween the rear wall 4 and the vertical part-ition 6, and .passes up over the baiiie 9 into the cylinder mold vat 10, where due to suction created within the cylinder 'mold the pulp fibres are deposited upon the surface of the Wire 12, the greater portion of the water in the stock passing through the wire. In my present construction 1 mount a silencer roll 13, comprising a perforated metaldrum, between the horizontal timber 8 and the top of the vat walls 5 and in front of the baille 9, in -such a way that all of the stock must pass through the perforations 14 of: said silencerroll. The journals 15 of said silencer roll 13 extend through ,'a driving shaft 18 and .a suitable driving mechanism such asa speed reducer 19 and a motor 20. The silencer roll 13 may be re-v volved at any suitable speed and in either direction, depending on the .practical results obtained.

It will be noted that the diameter of the silencer roll 13 is preferably exactly equal to .the Vertical distance between theupper face of the timber 8 and the top edge of the side walls 5 in order to insure the passing of all of the stock through said silencer roll 13 in its flowto the cylinder vat 10. It would of course be possible to extend the walls of the vat above the top of the silencer roll 13 but in that case an over flow should` be provided to` prevent the stock from iowing over the top of said silencer roll 13. l

One of theprincipal advantages of the construction above described is that the silencer roll 13 quiets and silences the boiling vstuiling boxes 16 in 'the side walls 5, Vand are rotatably mounted and eddying of the stock inits flow to the cylinder vat 10.- The silencer roll insures a uniform velocity of stock across the width of the vat, thus tending toward a better formation on the wire '12 and also permitting the cylinder mold 11 to be run at higher speeds. One ofy the principal difficulties in Inakingpaper on a cylinder machine is that unless the cylinder mold is run at a comparatively low speed the sheet `of paper formed is ymotions of the stock but also tends to cross the aperthe fibres in their passage throu h tures 14 of the silencer roll. T is crossing of the libres effects the formation of a much stronger sheet than can be produced Without the use lof a silencer roll. `It should be fur ther noted that the baile 9 serves to maintain a uniform head of stock in front ofthe cylinder vat 1,0 and it also serves further to produri?ll an even flow of stock to the cylinder mo I am aware that 'many changes may be` made, and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I therefore do not purpose limiting the patent granted hereon, otherwise than necessitated by the prior art.

I claim as my invention: 1. In a cylinder paper machine, a vat for the cylinder mold havinga transverse par- .ffiow to the cylindermold.

2. In a cylinder paper machine, a vat for the cylinder having a transverse partition therein defining a head box for stock and a cylinder vat for the cylinder mold, a vertical. bailie formed on said partition and a silencer roll positioned ahead of said baile and extending above the saine, whereby all of the stock passing to said cylinder vat is forced to )ass through said silencer roll.

in testimony whereof I have hereunto subscribed my name.

ARTHUR T. YGDER.