US741980A - Water-extractor for paper-making machines. - Google Patents

Description

No. 741,980. I PATENTED OCT. 20, 1903.

R. M. SGANLAN.

WATER EXTRAGTOR FOR PAPER MAKING MACHINES.

APPLICATION FILED MAR. 28. 1903. I v N0 MODEL. A 2 SHEETS-SHEET 1.

ATTORNEK No. 741,980. I PATENTED OCT. 20, 1903. R. M. SOANLAN. WATER EXTRAOTOR FOR PAPER MAKING MACHINES.

APPLICATION FILED MAR. 28, 1903- NO MODEL 2 SHEETS-SHEET 2.

ATTORN/f).

;: 1; TATES Patented October 20, 1903.

ROBERT M. SCANLAN, OF BROWNSTOWN, INDIANA.

srnorrroarron forming part of Letters Patent a... veneeo, dated October-20, 1903. Application filed March 28, 1903. Serin1No. 149.942 (No model.)

To aZZ whom it may concern:

Be it known that 1, ROBERT M. SCANLAN, a-citizen of the United States, residing at Brownstown, in the county of Jackson and State of Indiana, have invented new and useful Improvements in Water-Extractors for Paper-Making Machines; and I do declare the following to be a full, clear, and exact description of the invention, reference being bad to the accompanying drawings, and to the-letters and-figures of reference marked thereon, which form a part of this specification.

My invention relates to apparatus for extracting water from the paper web while being carried on the felt before passing between the first pair of pressrolls in paper-making machines.

The object of the invention is to provide means that may be cheaply produced and operated economically, whereby as much of the water asis possible may be extracted from or wringer rolls in pairs that would require special gearing for their operation.

My invention consists in the application of squeeze-rolls to the underside of the felt, so that the felt and the paper thereon may be forced against the upper press-roll in cylinder-machines or against the upper couch-roll in other machines, such as the Fourdrinier type, before passing between the upper and lower rolls, the squeeze-rolls being driven by means of contact with the felt coiiperating with the other rolls.

The invention consists also in a novel waterextract-ing roll and supports therefor; and it consists, further, in the novel parts and in the combination and arrangement of parts as hereinafter particularly described, and pointed out in the appended claims.

Referring tothe drawings, Figure 1 is a diagrammatic elevation view illustrating the path ofthe felt and the general arrangement of awell-known type of cylinder paper-making machine and showing my invention in connection therewith, the usual arrangement of the felt being altered slightly to conform to the requirements of the invention, the near parts of the machine being omitted for-the sake of clea'rness of illustration and such parts only being shown as may be necessary to a correct understanding; Fig. 2, a frag Fig. 5, an end View of one of the improved rolls and its shaft; Fig. 6, a transverse sectional view of the improved roll; Fig. 7, a longitudinal sectional view of the improved roll, showing also its shaft and mountings thereof; and Fig. 8, a fragmentary diagrarnmatic elevation view illustrating the application of the invention to the well-known Fourdrinier type of paper-making machine,

the water-extracting roll being situated so as to coast with the upper couch-roll in substantially the same manner-as in a cylindermachine at the upper press-roll, the near side of the frame being omitted in this view.

Similar reference characters'designate corresponding parts in the several figures of the drawings. r

In the drawings, a designates the pulp-vat, in which is mounted the paper-making roll b,

the couch-roll n being mounted so as to cooperate with the roll Z), and a guide-roller d is provided for guiding the felt. The frame 6 of the machine supports suitable rollersf and g for squeezing the water -fr'om the felt and rollers ht'j for carrying or supporting the same. A heater is and a spray-pipe Z are usually employed for cleaning the felt m, which extends partially about the couch-roll a, between the first pressrolls p and q, partially-about the roller j, over the roller 1), (if such 'is employed,) under the rollerh, between the rolls f and g, and over the roller d and the roll I), the paper web n being carried upon the felt from the roll 1) until it understood.

I construct suitable press-roll frames A, on

" frames A.

40 by the broken line m.

which I mount asuitable number of squeezel hubs L and connectingspokes M at their rolls or Water-extracting rolls, as B B B so as to operate against the under side of the felt and force the paper on the felt against 5, the upper press-roll q, the press-rolls being suitably monnted on the frames A, the frames nsually supporting a guide-roller C and being provided with suitable housings, as D D D for supporting the squeeze -.rolls.

rately and attached to existing machine- The rolls B B B may have smooth imperforate surfaces or their shells may be perforated in some'cases. It is prefer'able to employ as many squeezerolls as may be conveniently applied with respect to the portion of the roll (1 thatfaces toward the roll 0. g

As preferably constructed, each housing,

as D or D has an'o en way in which a suitable journal-box E is slidingly mounted, a spring F being seated against the outer side of the box and compressedby means of an adjusting-screw G, mounted'in the housing,

:55 preferably in a removable cap a, extending across the open way,'the screw having a hand-wheel s secured to its outer end and a follower i connected to its inner end. I The housing may have guide-ribs u in the open way, in which case the box E will have grooves o to receive the ribs, or other suitable means may be employedfor preventing movements of the box laterally in the housing. Any suitable housings H are attached 5 to the frames A in a plane above the roll g for rotatively supporting't'he guide-roller (J i l hell employed. When the roller 0 is dispensed with, the felt will run over the uppermost squeeze-roll,-as B, Fig. 1, as indicated The housings for the sqneeze'rol-ls project from the sides of the frames A toward the end of the machine at which the paper is made, so that the squeezerolls may normally bespring-pressed adjust- 5 ably against the press-roll q with the felt and the paper between. The roller 0 is preferably employed in order to prevent the upper squeeze-roll B from crowding the paper offof the felt if the paper becomparatively thick.

'When imperforate squeezerolls are employed, their shafts may be rotative in the journal-boxes E or they may rotate on their shafts, as may be desired. Preferably the shells of the rolls, as B, have perforations w,

in which case it is preferable that the rolls do main parts of the shafts, so thatshoulders m are formed, against which theboxes E may be forced by means of nuts J engaging threads y on the shafts, the ends of which have squares K to receive wrenches or levers for holding the shafts against rotation while operating the. nuts. 'The rolls each have In to some cases the housings may be made sepaends, the hubs rotative on the shaft'I. A Water-trough N is supported in the roll,which ishollow, independently thereof, by means of hubs O, mounted on the shaft I and secured adjustably thereto, as by set-screwsvP. The trough is as long as may be between the spokes M and has a free edge 1 extending close to theinside of the shell of the roll when in use just below the plane of contact of the roll with the felt, so that thewater entering the perforations will be gathered by the trough and prevented from flowing again through the perforations onto the felt or onto the lowerrolls. vThe lower roll may be imperforate, if desired; A drip-pan Q, having a suitable outlet 9, may be employed to advantage below the set of squeeze-rolls.

ltwill be seen that if the shaft I be socured in the boxes E the trough will be held- Referring to Fig; 8, in which the near side of the frame is lacking, 2 indicates the frame,

8 and 4 the first press-rolls, and 5 the paper:

carrying web or felt, 6 and 7 the lower and upper couch-rolls, respectively, and 8 the pa: per-carrying web, which runs about the lower couch-roll 6 and carries the paper between the couch-rolls, delivering it to the web 5. In

this type of machine the squeeze-roll or water-extracting'roll B is suitably mounted under the web 8 partially below the upper couch-roll 7, so that much of the water may be forced out of the paper before it passes between the couch-rolls. The supports and mountings for the roll B may be similar to those above described for the like rolls of the cylinder-machine, and the roll B may be either imperforate or perforate, as may be desired, the latter being preferable. It will be understood that weights may be substituted for thesprings F and screws as equivmay be placed beneath each roll, as will be obvious. When the perforate extractingrolls are employed, the Water will flow in the troughs N to the ends thereof and out between the spokes or arms M, clear of the operative portions of the lower rolls, into the drip-pan, if the latter be supplied. it will be understood that each trough N may be ad justed so that the thin edge 1 willbe properly situated to gather the water flowing through the perforations w.

Having thus described my invention, what I claim is 1. A paper-making machine including a water-extractingrollcomprising a fixed shaft, a hollow roll mounted on the shaft and havin g perforations in its shell, and a trough attached to the shaft and extending therefrom downwardly and then upwardly to the inner surface of the shell and provided with a thin edge at its extremity.

2. A paper-making machine including a press-roll, a perforate water-extracting roll, a fixed shaft supporting the roll, andat-rough in the roll fixed adjustably therein on the shaft so as'to be movable about the axis of the shaft, and a paper-carrying web extending between the press-rolland the water-extract ing roll.

3. A paper-making machine including a main frame, a press-roll, a pair of housings, a pair of bearings mounted slidingly in the housings, means whereby the bearings may be elastically pressed toward the press-roll, a shaft mounted in the bearings so as to be mov able rotatively, means for binding the shaft to the bearings,a perforate hollow water-extracting roll havingspokes attached to the ends of the shell thereof and hubs attached to the spokes and rotative on the shaft, a trough in the roll attached to the shaft and having an edge atthe inner surface of the'shell of the roll, and a paper-carrying web extending be tween the press-roll and the water-extracting roll. t

4. A paper-making machine including a main frame, a pair of press-roll frames, a

press-roll mounted in the press-roll frames, a,

paper-carrying web, a plurality of housings attached to the press-roll frames, at water-extracting roll mounted in a pair of the housings and codperating with the press-roll, and

a guide-roll for the web mounted in a pair of the housings above the press-roll with its axis in a vertical plane between the axes of the water-extracting roll and the press-roll.

5. A paper-making machine comprising a main frame, a pair of press-roll frames mounted on the main frame, a press-roll mounted in the press-roll frames, a water-extracting roll mounted in the pressroll frames, a paper carrying web extending between the press-roll and the waterextracting roll, and a guide-roll mounted in the press-roll frames'in' a plane above the water-extracting roll and carrying the web free from the press-roll in advance of the water-extracting roll.

6. A paper-making machine comprising a main frame, a pair of press-roll frames mounted on the main frame, a press-roll mounted in the press-roll framesg plurality of hollow perforate water-extracting rolls mounted. in the press roll frames in different vertical planes and having each a trough therein that has an edge at the inner surface of the shell of theiroll, a paper-carrying web extending between the water-extracting rolls and the press-roll, and a guide-roll mounted in the press-roll frames in a plane above the uppermost one of the plurality of water-extracting rolls and leading the web gradually to the press-roll in advance of the water-extracting rolls.

7. A paper-making machine comprising a main frame, a pair of press-roll frames mounted on the main frame and provided with a plurality of housings, a press-roll mounted in the press-roll frames, a plurality of hollow perforate water-extracting rolls mounted in the housings in different vertical planes and having each a trough that has an edge at the inner surface of the shell of the roll, and a paper-carrying web extending between the press-roll and the plurality of water-extracting rolls.

8. In a papeumaking machine, the combination with the pair of press-roll frames and the press-roll mounted therein, of a pair of housings attached to the press-roll frames, bearings slidingly mounted in the housings, shafts mounted in the bearings so as to be movable rotatively, means for binding the shafts to the bearings, perforate hollow rolls each having spokes attached to the ends of the shells thereof and hubs attached to the spokes and rotative on a shaft, a trough in each roll attached to the shaft thereofand extending to the shell of the roll, a guide-r011 mounted in a plane above the hollow rolls slightly removed from the press-roll, a pan mounted below the lower one of the rolls, and the paper-carrying web extending over the guide-roll near the press-roll without contact therewith and thence between the hollow rolls and the press-roll.

9. In a paper-making machine, the combination of a pair of press-rolls, a web extend- .ing between the press-rolls, a perforate waterextracting roll having a trough therein receiving the water from the perforations therein and discharging the same through opposite ends of the roll, and a pan below the waterextracting roll.

10. In a paper-making machine, the combination of a press-roll, a water-extracting roll adjacent to the press-roll, aweb extending between the press-roll and the water-extracting roll, a guide-roll mounted in a plane above the press-roll and the water-extracting roll and carrying the web free from the press-roll and also from the water-extracting roll.

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

ROBERT M. SCANLAN.

\Vitnesses:

FRANK BRODHECKER, RALPH B. APPLEWHITE.

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