US1018849A - Watermarking apparatus for paper-making machines. - Google Patents

Description

J. SPEED & A. WHITTON.

WATER MARKING APPARATUS POR PAPER MAKING MACHINES.

APPLICATION FILED Nov. 1o. 1911.

Lmfw. Patented Feb. 27, 1912.

ATTORNEY JAMES SPEED AND ALEXANDER 'WHITTON, OF WEST SPRINGFIELD, MASSCHUSE"'l'."lS,-

. WATERMARKING APPARATS FOR PAPER-MAKING MACHINES. I

Specication of Letters Patent. Patented Feb. 27, 191".

Application mea November 1o, 1911. serial No. 659,490.

To all whom it may concern.' A

Be it known that we, JAMES SPEED and' ALEXANDER lVnrrroN, a citizen of the United States of America and a British subject, respectively, and both 'residents of YVest Springfield, in the county of Hampden and State of Massachusetts,'have invented certain new and-y us'eful Improvements in lVatermarkingA Apparatuses for` Paper- Making Machines, of which the following is :a full, clear, and exact description.

The' object of this invention is to provide- .means for the Watermarking of paper in the process ofthe manufacture thereof which will do away with the requirement of dandy; rolls and which is unlike certain Water-f marking means heretofore employed in the: wety portion' of a paper machine and com-f `prising impression imparting cylinders. In the present invention a pair of cylin ders is provided which have their location: forward of the. first one of the drier ydrums. employed as part of or in 'conjunction with' paper machines so that the web being drawn out from the Wet end of the machine and becoming partially dry is subjected, while yet damp, to the paper marking impression ofy oneof a pair of cylinders which has one or.

more arc faced projections extending from the circumferential surface thereof provided on such arc face with impression forming surfaces, such cylinder being ljournaled in. boxes which are vertically movable to which pressure in a downward direction'.is imparted, and in conjunction with which boxes are means whereby the downward movements of the lower lboxes are limited sol that Vthe co operative 4cylinders themselves are never brought to' circumferential Contact, although' in every revolutionbf the upper cylinderits impression carrying projectlon orprojecbrought to pressure bearings ver. '9 The invention is more definitely described in conjunction with the accompanying drawings and is set forth in the claims.

In the drawings Figure l shows, in sectional elevation, the rst, second and third .drums of the drier apparatus and the arrangementscom'prised in our present invention combined therewith. Fi 2 is an elevation as seen beyond the p anc indicated by line 2 2, Fig. 1. Fig. 3 is a partial y lhorizontal sectional view as taken on line I' 3 3, F ig. 1. Fig. 4: is a partial cross seotional v1ew in detail as taken on the line 4 4, Fig.2., Figf is a View in detail showing a. slight modification in the construction of the recessed uprights in which the journal boxes are fitted.. Fig. S shows a roll having interchangeable equipment, and Fig. 7 is a detail view in further illustration thereof. o I y In the drawings, 10, 12 and 13 represent the first, second and'thlrd drier drums of the series, the number thereof being greater or less as required; a: re 'resents the web of aper 'understood as eing drawn .to the rightward from thef'wet end of the Fourvdrinier machine and carried, by the usual felt apron, for its proper course through the drier drums', for which, as understood, usual i means for rotating them at uniform speed 'is rovided. f Y

heweb of paper after passing through `tially dried so that in passing to and through farther of the drums it reaches them in only'a damp condition; and 'we have found' it advantageous to locate the watermarking cylinders A and B adjacent and forwardly ofthe second one, 12, of the drums. The opposite uprights D D are pro vided adjacent the. ends ofthe second drier drum,A 12, eachhavin'g a vertical recess a therein.

' b. b re resent a pair of oppositely located boxes fo the journals A2 of the lower'oylinder A, lthe same being stationary by reason of resting on the lower boundary of the ver'- tical recess a.

boxes for the journals B2 of the upper cyl- -and 'have means below them 'for limitations oftheir downward movements. means, as represented in Figs. 1, 2 and 4, is constituted by the simple expedient of the lower journal boxes on which the upper ones 'bottoml The upper cylinder has one or more (a pair being here shownf projections ff extending'from the circumference thereo provided with arc shaped impression forming faces y produced in any suitable way, as by engraving, or by the processes of electrotyping, stereotyping, or otherwise.

The upper boxes d ofhave upwardly extending stems g which extend for guidance through holes It therefor in the cap pieces or bars i secured on the tops of the uprights d d represent a pair of oppoistely locatedA and.

one or more of the drier drumsybefcomes parinder B, which boxes are vertically movable,

D and which are provided with head formspeed of the drier drums 10, 12, and 13, andl Ikto the travel of the paper which runsvin con-` junction therewith; and as a means therefor,

power is transmitted throughl the shaft K which has a pinion K2 thereon which meshes.

in to a gear wheel K3 on the end of one of the journals A2 for the lower cylinder; and the journal of the lower cylinderisby gear L aiixed thereon meshed into the gear L2 of the upper cylinder and in constant and running engagement therewith. l

In operation, the web coming inxa very wet condition from the F ourdrinier machine and carried by theapronto and around one or more of the drier drums, passes between. the cylinders A and B ,and thence forwardly to the farther drier cylinder or cylinders. By reason of the 'arrangement of the journal boxes, and the means for sustaining the upper ones in a limited degree of descent, the webwill pass freelyA through and between the pair of cylinders 'A and B, but

every time one of the arc faced impression bearing projections f comes around adjacent the lower cylinder a, it has a pressure-bearing on the paper under the .weight of such cylinder and its boxes, and an augmenting' pressure is exerted through the stems g by the weighted levers F to producean impresf sion"having all the general aspects of a water mark in .the but. partially dried', web of paper. When each revoluble arc faced projection f comes around to its lowermostk position and adjacent the lower cylinder, it causes the upper cylinder B and its journal boxes d d to have a degree of ll'isingmovement so that the impression producing parts are subject to the weighting pressures aforenamed; and then when the arc facedv projection has been partially and so far revolved as to lmove upwardly Vaway from the plane of the traveling paper, the. upper cylinder A is permitted to descend in a limited extent, but not so far as to permit the periphery of the cylinder proper to come to contact against the web. Suchlimitation of'the downward movement of the cylinder is assuredhy the arrangementof the parts,

such as shown 'and describedwherein. the boxes d d for the up er cylinder bottom or come to rest upon t e tops of thejournalboxes b b for the lower cylinder. But as arrangement by which the upper journal boxes bottom against the lower boxes, a horizontal partition is provided across the vertical .-recesses'n the uprights (Z below which partition the lower boxes .are located, and upon which the tops ot' the upper boxes bottom.

.The 'means hereinahm'e described for water-marking paper is less expensive than the means" constituted by dandy rolls, and is preferable to Vthe employment of dandy rolls for the further reason that it becomes .possible to produce water-marking of more elaborate and complex design, and one in which the delineation is formed by marks or impressions which may be more closely related or finer than'any possible to produce by the 'action ofa dandyr'oll.

.When desired t Arun the driers without hav-ing the paper Apassing,r therethrough watermarked the upper boxes may be ele' .vated by, the hand-wheel-nuts m 'engaged on the screw threaded portions of the stem g so that the upper boxes and cylinder are supported to-such an extent above the lower ave the watermarking impressions at difchangeablerings such asshown at o in Fig. 6, vwhich may be slipped on the upper cylinder, which may be `of a standard diameter, and secured by set screw t.

the interchangeable ring I. having the pro jection f provided with 'the arc formed impression producing surface, proper interchangeable gearing to substitute that shown f-of the cylinders atthe yWe claim f 1i The combination with the drier drums proper speeds.

journals of the upper .cylinder which are vertically movable', means' below the movable boxes for4 limitix'ig. their downward downward pressure against said upper boxes.

2. The cbmbinacipn with ,are drier' drums representedvinFig. .5, instead of having an= ferent distances apart on the traveling web, we prov1de,for usel in Ysome "cases, 1nter.

at L, L2 is provided to secure the propulsionA of a paperfmachine, of upper and lower" cylinders having .positions adjacent and. axially parallel with the drier drumsa-nd cylinder that the-revoluble projections f .pass aroundfree-and clear of the traveling t. papenl And inasmuch as it is'deSirable to In conjunction Wit-hthe employment ofl I ,pair of oppositely located boxes for the movements, and means vfor imparting a lof oppositely .located stationary boxes for 4the journals ofthe lower cylinder and having a pair of oppositely located boxes for of a paper machine of upper and lower cylinders having positions adjacentl and axially parallel with the drier. drumsand provided with journals at their ends, the upper one of said cylinders lufvinga projection extended from the circumferential surface thereofl and provided with an arc shaped impression forming face, opposite uprights adjacent the ends of an intermediate one ofv the drier drums having a pair of oppositely located stationary boxes for the journals of the lower cylinder and having a pair of opposite'ly located boxes for the journals of the other cylinder which are vertically movable. and which normally rest on the tops ot' the lower boxes, and which have upwardly extending stems, and means t'or imparting a dowmvard pressure against said stems. A

3. The combination with the drier drums of a. paper. machine, of a pair of cylinders having vpositions adjacent and axially parallel with the drier drums and provided with journals attheir ends, the upper one of said cylinders having one or more projections extended from the circumferential surface lthereof vand provided with arc shaped impression forming faces, opposite uprights adjacent the ends of an-intermediate .one of the drier drums having a pair the journals of the other cylinder which are verticall)7 movable and normally rest on the tops of the lower boxes and whiclrhave upwardly extending stems, levers pivoted at the upper portions of said uprights, extendlng in bear-111g across the tops` of said stems,

and having weights at their free ends.

4. The combination with the drier drums L of a paper `machine, of a pair of cylinders' having positions adjacent and axially parallel 'with the drier drums, and provided 'with journals at their ends, the upper one -of said cylinders liavmg one or more pron jections extending from the circumferential surface thereof provided with arc shaped impression forming faces, opposite uprights adjacent the ends of an interchangeable one of the drier drums having a pair of oppositely located stationary boxes for the journals of the lower cylinler havfor the journals of'f both cylinders, those,l

for the upper cylinder being iverticallvnipv.

able, means for imparting downward presta ,j

sures tothe upper boxes. a ring adapted to be removably engaged on the upper cvlinder having a projection provided with an arc shaped impressionf forming face and means for-detachalily `confining said -ring on the upper cylinder.

*Signed by us at Springfield, Mass., in presence of two subscribing witnesses.

JAMES SPEED. ALEXANDER 'WHITTON Witnesses G. R. 'Dmsoonm E. E. EmosoN.

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