US971073A - Web-roll-tension device. - Google Patents

Description

G. I'.. READ. WEB ROLL TENSION DEYIOE.

' Y l nrmonrou rmzn 1m48.199s. 971,073.A f Y Patented septh 27,1910.

2 SHEETSBHEIJT 1.

G. 111mm.' A WBB noLL'TBNsIoN hmmm., n n

` LPPLIOATIOX FILED JAN. 18,1900. 971,073.- v Y Pamncedsepn 27,1910.

, I 2 sums-snm 2.

, f/ f, M f 5. 1 /jm Uf H .of www, W/ .w M QM anuncis' r. 'man or LONDON, ENGLAND, Assronon., BY Mnsnn ASSIGNMENTS, To

3. HOE AND CO., OF NEW YORK., N.

`Y., A CORPORATION F NEW YORK.

Application filed January 18. 1809. Serial No. 472,781'.

Toclwlzom if, muy concern."

Be it known that I, Gnoien: Elim, a

i UNiTED sirnfrns rnrnrrrl rOFF!CEi rutenteusepe. 27, 1910.

l a side elevation, on an enlarged scale,of the y middle tension device illustrated in Fig. 1, i i citizen of the United States, 'residing at certain parts beingr shown in section. F ig. London, county of; Middlesex, England, 3 is a top plan view of the construction 5 have invented certain new und useful lm- ,shown in Fig'. il, the direction of view being 60 prcvements iu leb-Roll-Tension Devices, lindicated by the arrow il. .Figa '4 is a sidefully described and represented in t-hc fol vier.' of the tension device illustrated in lowing`r specification and the accompanying f l'fig. the direction of viewbeing indiv drawings, forming a partv of the saine. cated b v the arrow l in Fig. l. Fig. 5 is a.

This invention relates to improvements in section on the line .Vr-5 of Fig. 2. Fig. is 65 iyeb roll, tension devices for printing and a detail view illustrating one of the features similar machines.l l of instruction` and Fig. 'i is a. sectional It is common in machines in which paper -plan on theline 7 j i' of Fig. 6. taken from a. roll' is operated upon to pro- Referring to the drawings, which illusvide tension devices for controlling,` the detrate one embodiment. of the invention, 1 7n t livery of the web from the roll, a usual conf indicates the frame of the machine which .j struction being' a brake' mechanism operatmay b c. for instance,'the frame of a multiple ing upon the webroll spindle. The tension roll printing machine'. This -frame supdevices heretofore employed have been proports a plurality,- of rolls, as 2, 3, 4, these vided with adjusting devices by which the rolls being mounted in journals of any ap- 75 amount of tension is regulated, these adjust.- proved type. Each of these rolls is pro ing devices being located at or nearthe roll. vided with a tension device which may be of Such devices require the presence of an atv any approved construction. As illustrated, tendant at the roll where adjustment is to the shafts or spindles 5 of the rolls are proeffected, and the attendant. inay, there- 'vided with lgrooved drains (i, the grooles 50v fore, be required to go from some other part being engaged by proper shaped. pad blocks Y of the machine Where he is watching the these pad blocks beinr pivotedon levers 8 operation in order to adjust the tension. which as shoun are mounted on spindles 9 Further, in machines in which a plurality projecting from the traint of the machine. c of rolls are used, such, for instance, as a` \Vhatever type of tension device be em- 85 multiple IOll printing machine, where the ployed in carrying the invention into effect, tension of a number of Webs has to be aditv will be provided with means for ,properlyl justed, more than a single attendant may he adjusting the tension, In `the particular required t0 adjust the Several nSiOIl d8- construction illustrated, the vtension is advices employed justed by varying the pressure of. the pad 90 It is one ofthe objects of this invention to blocks on the drum, Ag `sh0wn this is produce a construction by whiclrthe tension effected by providing each of the levers 8 device Covering the delivery 0f a Web flm with a threaded socket 10, thesesockets being 3 IOll muy be titljllted either at, the lOll 0I' pivoted mythe' levers by chuis 117 0r in my 40 ata point distant from the roll, as,-0r in- `other suitable manner. For 'a purpose here- 95 stance, near the delivery end of the machine. inaftezstated; one of these threaded sockets, `At furtl'xer object of the invention is to as, for instance. the upper one, muy be reproduce a construction in which where a movably Seem-@dto thelever by providing it machine is operating upon a plurality of with a hook` as 12 und pin These rolls, the tension devices may be adjusted threaded sockets. in the construction shown, 100 from a point at a distance from the rolls. are engaged b v right and left hand screws Vith these and other objects in view, the' 14 which are mounted in a hub 15. The. j invention consists in certain constructions construction so-far described is, generally 1 and in certain parts. improvements and com speaking, well-known in the art. l binations as will be hereinafter fully de- Means may be provided for adjusting the 105 l scribedand then specifically pointed out. tension either :it the roll or at a distance i' Referring to the drawings, Figure 1 is a from thc roll. and these means may be q side elevation of so much of a machine mwidely varied in construction. As lllusploying a plurality of' web rolls as is netrated. in order to ad just the tension at. the i essary to illustrate the. invention. Fig. 2 1s roll, there is provided a hand wheel 16 110 I ....nta.

which is fast to the hub 15. In the'particular construction illustrated, the means for adjusting the tension at a distance from the roll includes a worm geni-17, this gear being fast upon or formed integrally with the hu 15. rThis Worm gear is .engaged by a worm- 18 formed on arsliaft- 19 and nthis shaftinay be provided ivith a sprocket wheel 2.0. This sprocket may be engaged by a chain, as 21, which, by means ofV suitable guides, may be led to the desired point at adistance from the roll. In the construction illustrated, thischain 21 is ledr to a sprocket@ -drunifQZ provided witls a hand-wheel 23,-

. engaged by a chain .24 which by suitable E guides, as illustrated, is led to a sprocket drinn provided with a hand wheel 96 this sprocket drum being mounted on the frame of the machine n juxtaposition to the drum Q2 before referred to. In this construction, the shaft lf) of the middle roll is provided with an additional sprocket 27 (sce Fig. 3) which is engaged by aichain 28 which runs toand around the sprocket 2t) on` the Worm gear shaft 19 of the upper roll.

In the best constructions embodying the invention, means will beprovded for interrupting the operation of the means by which theiension controlling mechanism is operated from a distance. lhile this may be effected in various ways, in the construction illustrated, the worm shaft 19 is mount ed iii an eccentric sleeve :29, this-sleeve being -in turn mounted in a bearing 30 secured-to the machine trame, The sleeve 29 may be proi'ided with a handle as 31, so that by rocking the sleeve the worm 18 Will be thrown o'ut of lnesliwith the gear 17.

A. Iii the particular construction illustrated, the` means for adjusting the two upper rolls from a distance will operate on the rolls alternately. or: in other vajords, when the upper` roli is to be adjusted from the Wheel 26. the Worin ai'idgear of the middle roll 'will be thrown out of meiti, and `"ice versa. 'As usual in` sich constructions, the tension .devices may, if desired, be of such construction as to per itthe paper rolls to be given an endwise :ii-justment 1n the machine. In the construct-ion illustrated, this is accom plished by. providing a hub 32 (see Figs. 4

and 5)' `with -oppositely extending'fpairs of arms 33, these arms being mounte kon the kstuds 9 and each lever Silylng between a i pair of the arms. The hub is providedwith a screw 34 engaging a threaded socket 35 l formed on'a'stud 36 secured to the machine frame on which studv the hub 33 is mounted to slide. It is apparent that by tiuning the screw the hub Will be adjusted toward and away from the frame of the machine, and, owing to the construction of the spindle,- drum and pad blocks, the roll will be given a sidewise adjustment. .When the roll is to be-removed altogether, the pin 13 will be removed, thus permitting the tension adjusting means to be swung out from between the levers and allowing the pad blocks to disengage from the roll spindle.

Charges and variations may be made Yin the constructiony by which the invention is carried yinto effect. The invention is not, therefore, to be confined-to the particular l construction herein shown and described. Y

What is claimed is 1. ln a printing machine, the. combination f with means for supporting a web roll, of a. tension device therefor, mechanism for controlling the tensionvdevice, means for operating the controlling mechanism at the roll,

-means for operatinfy the controlling mechanisni. at a distancevv rom the roll, and means Afor throwing out ofopeiation the distance operating means. A

2.,In a printing machine, the combination with 1neans.for supporting a plurality of web rolls` of tension devices for said rolls, mechanisms for controlling the operation of the-tension devices, means for operating said controlling mechanisms at the rolls, means for operating said controlling mechanisms at a distance from the rolls, and means for throwing out of operation said distance operating mechanism. ,v In a printing machine, the combinatiox` f with means for supporting a web roll, of a. tension device therefor, mechanism for controlling the operation 'of said tension de- 110 vice, means `for' operating said tension con- H trolling mechanism at. the roll, means including a. lsuitable gearing for-operating said tension controlling mechanism at a distance from the roll. and means for interrupting lthe action of the gearing.

4.' In a printing machine, the combination with means for suppcrting a plurality of web rolls, of tension devices for said rolls, mechanisms for controlling the operation of said tension devices, means for operating i said' Acontrolling-meclianisms at the rolls, and means operable from a common point for operating said tension controlling mechanisms at a distance from the rolls.

i 5. In a' printing machine, the combination web` rolls, of tension de vices for said rolls, mechanisms for controlling the operation of said tension devices, means for operating i t l i l said controlling mechanisms at the rolls,` means including Suitable gearinv for operating said tension controlling v evices, said means being operable from a common point at a distance Afrom the roll, and means forintcrrupling the action ofthe gearing.

G. in a printing machine, the combinatin with means for supporting a web roll, of a Atension lei-'ice therefor, mechanism for controllingl the operation of the tension device, means for operating saidcontrolling mechanisin at the roll, suitable gearing also operating said tension controlling mechanism, a iriver for the gearing, said driver being operable at a distance from the roll, and eans for interrupting the action of the gearing.

7. In :i printing machine, the combination with inean's for supporting a plurality of vweb rolls, of tension devices therefor, mechanisms for controllingtlie operation of said tension devicesfmeans for. operating said .tension controlling mechanisms at thel rolls,

gearing for operatiiigsaid tension clevices,

hubs, hand-wheels on the hubs, worm gears on tlie hubs, Worinscoacting with said gears, flexible driving metins for the worms, 'saiflv driving means being operable at a common point at a distance from the rolls, and meansy `for throwing the worm lgears out of mesh.

Iii testimony whereof, l have hereunto set my hand, inthe presence of two subscribing witnesses. GEORGE F. READ.

Y vlvitnesses: e

H. D. JAMESON, F. L. RAND.

Images