US1283888A - Automatic paper-machine. - Google Patents

Description

C. E. POPE. AUTOMATIC PAPER MACHINE. APPLICATION mu) 1mm, 1917.

Patented Nov. 5,1918Q a sums-sneer I.

. INVENTOR.

- M ATTORNEYS.

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Q. E. POPE. AUYOMATIC PAPER MACHINE. APPLICATION man JAN. 31, mn

Patented Nov. 5, 1918.

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WITNESSES 3 SHEETS-SHEET 3.

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Patented Nov. 5, 1918'.

- in practical use,

cHAnLEs E] PoPE, OF

UNITED sTAT s PATENT oEEIcE.

Am'oMATIo PAPER-MACHINE.

To all "whom z'tmag concern.

Be it known that I, CHARLES E. POPE, a citizen of the United States of America, residing at Holyoke, in the county of Hampden and State Massachusetts, have inf useful Improvements in Automatic Paper-Machines, of which the following is a specification.

This invention relates to automatic paper machines and particularly to improved means for automatically web from one drying cylinder aper machines of the cl characterized in that the web, or after any break in the paper, is carried automatically through the machine as web through the machine by hand F 0 enample, the web is arranged to jump the d stance from one drier to another and is. thus transferred by its own an one of tie main aims of this invention is to provide means toinsure to an added degree the automatic trans fer of the paper fromdrier to drier.

An object of this invention is to provide in a paper machine, I tllii drying cylinders thereof; means whereby the forward end of the traveling web may be automatically guided or fed in a definite path to pass it from drier drier.

Another'object vide in a machine'of the class described.

as it passes from one cylinder to another, thearrangenient being characterized in that said means act in opposedrelation on tne web and in such a manner that the latter is guided by the action of balanced forces or in the path I which of least resistance in driers.

Other objects and advantages will appear in the description to follow and will be pointed out in the appended claims.

The invention, in an embodiment at present preferred, is shown for illustrative purposes in the its travel between Figure 1 is a diagrammatical View showing a series of dry ng cylinders with the invention applied thereto;

Specification of Letters Patent. Application filed January 31, 1917. Serial N 0. 145,678.

g Fig. 6

accompanying drawings, in

HoLYoKE, MASSACHUSETTS, ASSIGNOR T0 GREAT NORTHERN PAPER coMPAnY, 0E MILLINOCKET,

MAINE, A C RPORA ION.

PatentedNov. 5, 1918.

a partial side elevational view showing the mounting of the parts indicated in F g. 1, so far as is necessary to an under standing of the invention by those skilled in the art,"

i Fig. 2 is Fig. 3 is a diagrammatical view on an enlarged scale, showing in detail the manner in which a web'is' automatically guided and transferred from drier to drier;

*ig. 4 is a cross, sectional view taken on the line H of Fig. 3; 1

Fig. 5 is-a diagrammatical view showing t e inventionasapplied to another arrangement of drying cylinders; and

is a modification of the .arr gement shown in Fig. 5. f ehferring to these drawings Thei' as speed automatic paper machine of the t in my pr or Patent 1,214, 6,- 1917. The invention, however, capable of eneral nve- 12, l application, and

cylinders by mud. Rather than handling .the full width of the web, the general practice is to form a ribbon, usually "at one side of the Wire, whic is carried through the machine and afterward leads a web of full width for the normal operation. I ve erring to Fi apron 10 carries the web 11 from the last press rolls (not shown. toa guide roll 12 adjacent'the peripheryhf the first drier l3 and the apron'returns over other rolls 12. In line with the upper roll 12 it and the first drier l a guide roll 14 provided with a docto* 15. bove and a little beyond roll 14 i a-horizontally.arranged pipe 16 connected to a source of air under pressure. .The web 11, traveling at high speed, jumps the distance between rolls l2 and and is forced downwardl by a blast of'air from pipe 1'6 into the big'htof e first drier 13 and its apron 17, whereupon the' ribbon is pulled around roll 14. -his manner of leading the web from the been illustrated as appliedto ahigh' I gs. l2 and 2,the lower j and between described in my first-named prior patent;

press rolls to the first drier is claimed and more fully described in my prior Patent No. 1,183,113, granted May 16,1916 and is shown and described herein simply for illustrative purposes, as any other suitable means may be employed as desired. I

The arrangement of the drying cylinders show-n 1n Figs. 1 and 2 'IS claimed and tully This arrangement of the driers will be briefly described herein so ta as is neces sary to. an understanding of the present invention. Each lower drier 13 of a series is located with its axis vertically or substantially so, below that of its companion upper drier 18in the upper series.- The upper and lower clriers are also arranged only a small distance apart or in such a'wa'y that-the forward end of the web or ribbon L1, as it travels rapidly through the machine, may

pimp from the lower drier into the bight ot. the upper drier and its associated apron 19,

without climbing any appreciable distance. The aprons 17 and 19 are carried by suit-able guide rolls :20 and 21, res mctively, and the tower 1501.121 directs its apron. 19 to the, upper drier 18, so that. as the ribbon 11 leaves "the drier 13,, it will jump to the apron 1 tically or substantially so and dou'nn'ardlv in a direction substantially tangential to the lower drier 13 of the succeeding set. The up )er'left hand guide'rolls 20 and lower rig 1t hand guide rolls2l are mounted close to their respective cylinders, and the web.

therefore, may-passfreely and autoimitically downward into the big'ht ot' the lower drier 13 and its associated. apron 1-7.

After the ribbon has been started through the machine, a web of full width is tormcd and the. norn'ialoperation ensues. The doctors 2 3' are then. preferably movcd'to .a re

llltttttiul position. Below the doctors 23 are other devices which function to clean the driers18 of the foreign matter which ordi fnarily gathers as a line film upon the pc' ,riphery of,the cylinders. Similar devices shown to 'form troughs,

are provided for thelower driers 13, as indicated. These devices comprise doctor blades 2-1 bent into substantially the form Each trough is mounted upon. av pipe Ho and is connected with'the interior thereot in a manner dis closed in the iirstmamed prior patent; to

whichreference is made for a more eon'iplete 5 disclosure. For thepresent purposes, it will sutfice to state that thepi are connect an to asintable vacuum, pump whereby the vided with other t'orms or arrangement-sof open and blasts of air issue in opposite d1 film of .dust and .lint collectedfrom' the driers may be automatically removed from the troughs.

The structure so far described is snbstam tially the same as that disclosed in the firstnamed prior patent. The present invention is more particularly concerned with iInproved devices which facilitate the autolnatic transt'er of the web from one drier to another. by stripping the web from one. drier and directing; it. into the bight of the other drier aud its associated apron.

.These improved devices will now be described. lleterring'to Fig.1, horizontally a rrang'ed pipes 28 are mountedadjacent lower driere 13 and between'the lower right hand guide rolis ll and the devices, 2% for the lower driers. Other similarly arranged pipes 29 are provided adjacent the left hand guide rolls 2t) and between. them and the dricrs 13. or these pipes :29 may be arrangedbeyond said guide rolls and be directed to sweep across the top thereof. as shown in. my lluited States Patent No. 992,688, May 1th. 19.11. The detailed manner of mounting pipes is shown in Fig. -l and the; mounting of pipes is similar. As there I indicated, the pipes preferably extend from one side of the uiachine inwardly a relalively short distance only since they ordinarily act only upon the narrow ribbon formed at the start. 0' after. any break in the process of making the paper. Each pipe Y is provided with. a row of perforations, as shown in l ig". -l-. and l have found that; if

inch on centers, satistactory results are ob-;- tamed. ()bviouslvpipes 28 may be proopenin s as desired. .but the described-an rangemcnt has been found advantageous) lipes 28 are connected by unions 30 to valves 31, as shown in Fig, i. and it is t0 be noted that by reason of the union connection, angular :uljustnnmt ot' each pipe maybe (()l|\'(l)lt"llll made. as (lkSlltt i Valves 31 and'similar valves 32 provided for pipes 29 are connected by a pipe 33 to a source at air under pressure and'in pipe 33 i is a valve 3+ whichcontrols the entire series of perforated pipes. v

-At the start oi the machine valve 34 s:

rections troni pipes 28 and as indicated in Fig, 3. The web 11, as it reaches the top of the lower drier 13 is stripped therefrom by the blast from pipe 28 and blown toward the upper drier 18. The web '11; as it is 1 thus forced to-the left (as viewed in Fig. 3),

125 is met. by a blast of air from pipe 29 which I tends to hold the Web away from the upper drier. The forcepf the blast from pipes 2S and is regula-ble by'the valves 3.1 and 32 i and is so adjusted that the web 6 is guided -1oo the perforations are made one sixteenth of." I

an inch diameter and spaced one-half of an into the bight of-the upper drier 18' and its associated apron 19.

e automatictrans fer ,oftheweb or ribbon from a lower to an."

upper drier by the momentum of .the web is thus aided by the stripping action of pipes 28 and the guiding action of the pipes '28 and 29 workingdn'cotiperative relation.

To secure the desiredjccoperative action of thepipes 28" and 29 under various conditions,. the valves 31 and 32 are provided to permit adjustment of the pressure of the air,

blasts and the unions 30 for angular adjustment'of the air blasts. .When once properly adjusted, 'these 'valvesmay be" fixed in a is suitable manner, as by removin the hand wheels, for exam 1e, and the va ve 34, only is used to contro the entire series of pipes,

as a starting. and stopping means for theblasts. After the'rib on 11. has been led through the machines, as described, the blasts from pipes 28 and 29 are no longer neces-.

sary and valve 34 may then be closed.

. The invention is not limited in--applica-- 'tion to the described arrangement of drying cylinders and iscapable of eneral use.

The invention may be used wit the ordi' nary and well-knownstaggered arrangement of drying cylinders, as shown diagrammatically in Fig. 5. A-pipe 28 may be 10- cated between each guide roll 40, for the apron 41 of the u per driers 4:2,. and. each' lower drier .43 an a pipe 29 may be arranged beyond each guide roll 44' for the apron 45 of the lower drier 42 to direct the air aross the apron 45 as it bends over the roll which will tend to strip the ribbon therefrom if it starts to follow. the apron all as indicated in Fi 5 or my prior patent referred to above. T ese pipes may-be constructed, mounted, and connected in a manner analogous to that already described in connectionwith Fig.1 to operate in a simi lar way to strip theweb 11 from a lower qdrier and direct it into the bight of the upper drier and its associated apron.

v If desired, means in additlon to the air blasts. from- pipes 28 or 28 may be employed 1 to'strip the web 11 from the lower driers 13 or 43.

means shown in Fig. 6 may be'used, it being As an illustrative example, the

understood that the parts in this figure are brought closely together to save space in ,thefigu-re. .A brush 45 is mounted to rotate .l)etii een the lowerdriei' 43 and the guide roll -40 and 'brushes lightly against the former. This brush is suitably driven asjby belt connections (not shown) from roll 40,

to rotate in an opposite direction to thelower drier and at a surface speed somewhat 66 in excess of that of the web; I have found that, if the surface speed of the brush is about twenty-five per cent. faster than that of the web, satisfactory results will be obtained.- Brush 45 may be mounted'in any suitable manner, and it may extend inwardly from one side of the machine in a manner analogous to pipe 28, a suiiicient distance to cover the ribbon. The pipe 28 which a blast of air is directed through the into t e bight of the upper drier and its .apron 41 by theblast of air from nozzle 46 and an additional blast from a pipe similar to pipe 29 if desired. .Although the arjrangement described has been illustratedin connection withv the-well known staggeredarrangement of driers, it may equally-well may be replaced by a nozzle 46 through 70 bristles on the upper part of the brush. The web 11: is stripped-from the drier 43' by the rapidlyrevolving brush, and throwntoward ?--the drier 42, as indicated by dotted lines in Fig. GiIand as it travels upwardly is thrown be applied .to the arrangement of driers" shown in ig. 1.

" :The arrangement of the' pipes'gf'28 and to direct blasts 'of air in opposite di rections, on each side of the web is important and advantageous. The pressureof the air blasts I i is capable of variation as is also the direction'thereof. By properly adjusting the di-' rection and force of the blast from one pipe with relation to the direction and force of the blast from the other pipe, the web may be carried. in a clear unobstructed path from a lower drier into the bight of the upper drier and its associated apron. The web is thus carried in a definite pathwhich may be defined as the line of neutrality at every point of which theforce from one blast is exactly balanced by that from the other.

' The invention has been described in a preferred form for illustrative purposes, but

the scope of the invention is defined by the 'lower driers, aprons therefor, and means to direct ablast of air on each face of the web as it travels from drier to dried, said means being arranged in opposed relation and definite path between driers, whereby the traveling we'bzmay be guided into the bight of'the upper drier and its'associated apron.

In a pa mr-making machine, upper and lower driers, aprons therefor, and pneumatic means arranged to act on each face of'the web as it travels from drier to drier, said means arranged to act in opposed relationto direct and guide the web by the action of adapted to direct and guide the web in a n so that The Web mu; 7

from the lower to the: upper drlel 1n a definite path wherein the force of one-meansgis zmhmced by that the othen in a pnpep mnhlng 'nmehme, the eon? therefor, means t2) g11idethe Web to the driers, the apron mare-bottom drierbeing21h? rangefi to hohl the Web against the (lfi'elf until it reaches a. point wl'xere it tp'ayels Sub- 'sta'ntially hor'montiilly envthe upper suyiwce of the drier, pneumatle means to Sta-1p the Web frem the b'ottmn drier, the aproh 'on 21; 00111198111011 mp timer bemg m' unged t form. with its iner an entrance 1n hne with the substantially horizohtzflh traveling web chine, an upper arranged nation with upper and lower drymg eyhn- U1 5 nation 0'1? a set ef' drying'eyhnderg epx e'ns stripped ire-m the lower drier, whereby the eb may be firzvnsiem'ed automatically from lewep. to an upper drying cylinder, und a, Second pneunmtic means, arranged to net; 011 the eb in opposition to the first-rimmed means,-whereby the web lhn'y he guided in a definite path by thenction of balanced forces thereon.

6'.- In a'paper making machine, the comhh derss, 213W). 9. therefor, means to guide the latte-1* to and from the .cyhniers, arranged S0 that i-he Web in passing from one eyhnde nether is e'xposeia on both sides 01 a pot- *oi" itstravel, and iwih-eeting means on each side "Of said portiom said: directing; means 'being arranged t-0 net on opposite faces of the forward ,end of a Wehduring its transition fro'mone' cylinder to another and to be inland-ed onengainstfthe ather so that the Web? is-"g\ 1idedin a. definite channel,

\x'rhereby the Webmay be transferred automati'ca-Hy byies'momenhjlm aided by said directing means.

UHAIiL POPE.

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