US2363112A - Web roll support - Google Patents

Description

5 Sheets-Sheet l INVENTOR 7750/7105 1Q. fiennef/ ATT RNEY I T. R. BENNETT WEB ROLL SUPPORT Filed Nov. 16. 1940 Nov. 21, 1944.

NOV. 21, .1944. I BENNETT 2,363,112

WEB ROLL SUPPORT Filed Nov. 16, 1940 5 Sheets-Sheet? INVENTOR 7710/7105 IQ fiennefi ATTO N'EY Nov. 21, 1944.

'r. R. BENNETT WEB ROLL SUPPORT 5 Sheets-Sheet 5 Filed Nov. 16, 1940 V INVENTQR BY 77mmas R- Bennett ATT RNEY Nov. 21, 1944. T. R. BENNETT 2,353,112

r WEB ROLL SUPPORT File d Nov. 16. 1940 5 Sheets-Sheet 4 3 434/ llllllllll ,j

IN VE N TO K 7720/2705 1Q. 56/2/7629 BY I ATT NEY' T. R. BENNETT 2,363,112

WEB ROLL SUPPORT Fild Nov. 16, 1940 5 Sheets-Shet 5 INVENTOR 710/2705 /Q. fienne/f B74 ATTNEY Nov. 21, 1944.

Patented Nov. 21, 1944 UNITED "STATE WEB ROLL sUrPoR'r 7 Thomas Richard Bennett, London, England, as-

signor to R. Hoe & Co. Inc., corporation of New York Application November 16, 1940, Serial No.365,864

New York, N. Y., a

In Great Britain Nove'mberZ-l, 1939 21 Claims. (01. j i i v j i i showing some of the parts illustrated in Figure This invention relates to improvements in supports for web rolls such as are employed for the paper web supply to printing machines. Such supports commonly comprise spaced supporting members or structures (usually in the form of spiders) capacitated rotatably to carry a plurality of rolls between them, the supporting members being angularlymovable in unison to enable the various rolls to be brought successively into web feeding position; generally these supporting members carry chuck components which are retractable to enable rolls to be positioned between them and then advanced to engage in a central aperture in the rolls and the supporting members are themselves relatively adjustable as to their spacing to enable rolls of different width to beacoommodated, and are-adjustable together to enable a main side-lay adjustment to be made. The present invention is more especially concerned with supports of the general kind referred to and also in which control of the rate at which the rolls are allowed to be rotated by the pull of the web passing to the machine is regulated by the action of adjustable brakes carried by the support at each roll position, the brakes operating on one or both sition and serving thus to regulate the tension in the web passing from the roll in use.

The main object of the present invention is to provide in such a mechanism as that referred to and including the brakes, an arrangement which will enable the chuck or other rollengaging com,- ponents to be adjusted endwise individually with respect to the supporting members in addition to the adjustment of the supporting members themselves, the arrangement enabling the chuck components at each roll position to be separately adjusted in the supporting members to effect individual adjustment for side-lay, the adjusting arrangement being such as will be accommodated in the space which is normally occupied by the various parts including the brakes.

The invention is illustrated in the accompanying drawingsin which Figure 1 is a general perspective view; Figure 2'is a side elevation partly in section; Figure 2A is a view similar to a portion of Figure 2 with more of the partsin section; Figure 3 is a sectional view as seen on line 3--3 of Figure 2; Figure 4 is a fragmental view of-a portion of the mechanism shown in Figure 3'illustrating parts in locked positionyFigure 4A is a view similar to Figure 4 illustrating parts in unlocked position; Figure 5 is afragmental view of another portion of the mechanism shown in Fig ure 3; Figure 5A is a fragmental view separately 1 1''! is a View similar 5; Figure 6 is a view similar to Figure 2A showing a modified form of the invention; andFigure to Figure 2A showing another modified form ofthe invention. l Referring firstly to Figure l, the invention is shown applied to a support capacitated to carry three rolls; each supporting member is in the of the chucks of each roll pois transmitted to the spindle l.

bearings 4, 5 in asleeve 6 which is end of the arm form of a three-armed spider S andthe :arms A of each spider extend radially from a central boss B and thetwo bosses are carried for rotation by a central main supporting shaft X arranged to be rotated in end bearings or-pedestals Y by an electric motor M so that rollsR in the three roll positions of the arms A can be brought successively into running position, the outer end of eaoh of the three armsA being provided with a roll supporting device Z to engage in "a central aperture in the rolls, the opposed chucks of the corresponding arms of the two spiders engaging inopposite ends of the roll. One or other, or if desired both, of the spiders S are adjustable axially of the supporting shaft X so that the spacing between the arms can be adjusted to enable rolls of different width to be accommodate in the support and. in addition the spiders are adjustable bodily together to enable a main side-lay adjustment to be effected, this being effected by axially moving theshait X itself. l Q Referencawill now be made to Figures 2-7 which illustrate threedifferent forms of constructionw In all of these figures only one chuck position is shown and referred to, it being undersimilar.

The roll supporting device Z for one endofa roll consists of a spindle I having atone end a chuck 2 tolengage in the 'oentralaperture in one end of a roll, this chuck having forced into the roll so that the rotation ofthe roll rotatably supported through spaced ball or roller 7 itself supported for both angular and axial movement in a boring formed in a bos atthe outer end of the armA of thespider S, the spindle being held also against axial movement with respect to the sleeve 6 by,

the bearings 4, 5. A part of the-periphery'of the sleeve 6 is formed with teeth 8 whichare engaged tangentially of the sleeve, by a screw or wo'rm'9 carried by a spindle l0 rotatable in thespider arm, the spindle to extending beyond the outer and there being provided with an operating handle I l. Another part of the peripheryof the sleeve is formed with a cam groove I2 into which extends a stud l3 set eccentrically on a lug 3 which is j The spindle is the spindles.

both ends, of the roll position.

two ways; firstly by holding the spindle I4 against movement so as to hold the stud I3 stationary, and by rotating the spindle III, the sleeve 6 is caused to rotate in the spider boss"! andthe cam groove I 2 flxed stud the teeth I3 to cause the sleeve 6 to move axially, 8 on the sleeve being; out sufliciently in the sleeve 6 will react against the ,The chuck 2 on the spindle of one roll supporting device is located on one side of the arm .A of

the spider S and the spindle l extends through the sleeve 6 and projects beyond the other side of the boss 1. This projecting end has a slidable but non-rotatable fit in a brake drum I held to the said other side of the boss 1 against axial movement by a flange llwhichis made in sections and secured to the outer face of the boss 1 and extends into a circular recess I8 formed in a boss on the brake drum I6, the flange I! allow- .ing the drum to rotate with the spindle. The

brake drum forms part of any conventional brake arrangement, 1. e.-, it is engaged peripherally by.

abrake band or by brake shoes which can be contracted' on to the drum by screw and nut or lever I mechanism. It-will now be seen that when the long to enable this axial movementto occur with" respect to the screw or worm 9 on the, spindle I0; secondly by rocking the handle I5, the eccentric stud IJ3 operatesiasia crank-pin to move thesleeve .6: axiallyby direct action against the walls of the camgroove- I2. It will-be-obvious that-the first action produces a relatively slow axial movement (due to the reduction .of-thescrew thread 9 and theequivalent action between the cam groove. I2 and the fixed stud. I3). while the second action produces a relatively fast axial movement of the sleeve due to the direct action of the stud l3 onthe groove 12. In addition, these two adjustments co-operate. with one another in such manner that the datum position from which one adjustment operates is regulated by the position of the other adjustment. I

The chuckarrangement for the other end of the rollmay be similar to that-described, the second chuckarrangement beingv provided with the adjusting means by which. a relatively slow and: a relatively quick actionis obtained.

Thus, regarding the. two chucks for the oppositeendsof a. roll, when a roll is'to be introduced into position, the sleeves are caused so as -to-move. axially by'the quickacti-on produced by the: spindle I4' andits'stud I3 as to carry the op osed chucks the roll R has been. broughtinto position between the chucks 2, the spindles. HIv are rocked in the reverse directiontu thrust the chucks 2 into the central apertures in the roll. R which thus. is. held by the chucks 2 in readinessto be rotated. If it is desired to make an. individual adjustment to bring. the roll. into correct align- .mentwith theweb in use (such. a. condition arising. from various causes, e. g.,v due. to variation in width of difierent rolls, in variation in the length ofthe cores on whichthe rolls are wound. the chucks being forced into thecores whichare tubular-411 variation in the .centreing of the width of the roll on the core and in variation in the diameters of the. bore at the ends of. the tubular core, all of.which would cause the. roll to. be. badly aligned withthe web in use), then III are. rotated to cause. the relatively slow action to be produced, the chucks 21 oi the selected. roll. position at the. opposite ends of the roll being moved (in the same, or if necessary inopposite, directions), this adjustment being a fine adjustment by reason of the screw action of the adjustingmechanism.

Inv order now to provide a braking action. on

the roll so as-tocontrol. its rate of rotation (and hence the tension. in the web. passing from the roll) the following arrangement is provided for the chuck arrangement at one or if desired at 2away fromone'another. When spindle I is caused to rotate by rotation of a roll R due to the pull of the web passing from that roll, thebrake band or shoes will exert a braking action on rotation of the spindle I. and .hence on the unwinding of the roll, this in turn regulating the-tension of the web passing from the roll and theydeg'ree of tension being adjusted by adjustment of 'thebrake .-band or shoes. I

The mechanism employs a small number of parts and can readily be arranged to be accommodated in the. limited space which is usually available. g I

Means is provided to lock the handle I 1 against accidental operation, and is illustrated in Figures-3, .4 and 4A. vThe handle I! is rotatable-on the spindle I0 and is formed with a cam groove [9, which engages with a cam projection 2|, formed. on a sleeve 22. The sleeve 22 is axially slidable on the spindle. I0 and also slidable, though not. rotatable withrespect to a sleevef22f which is secured to the spindle I0. .Aspring carried in opposing bores in the sleeves 22 and 22' acts to separate the sleeves and, press the .cam projection2l into firm engagement with the cam groove 3.. As shown in Figure 4A, .the sleeves 22 and 22' are held against .relative rotation by pins 25, secured to and extending downwardly from the sleeve 22 and into suitable bores in the sleeve 22. A stationary bush 23 in which the spindle I0 is rotatably supported, is provided the motion being transmitted through the cam In the. position of the parts shown in with a flange 27. and is bored toreceive a locking pin 24, which is pressed upwardly by a springZG. Figured, the pin 24 extends into one of the bores to engage the pin. 25'. extending downwardly intothe sleeve 22'. .The point of meeting of. the pins is above thesurface of the flange 21, and hence the sleeves 22' and..22 are locked in. position, and .the cam projection. 21 being spring, pressed. into thecam groove I9, the handle II also-is held against rotation. However, when handlev I l, the first action is to press. the cam projection 2| downwardly, and thus causevv the sleeve 22 to press the pins 25 and 24 downwardly .until their meeting surfaces, as shown in Figure 4A, are in alignment with the top. surface of the flange. 21. When this occurs, the sleeves 22 and 22 are free toirotate, and suchrotation maybe effected by continued rotation of the handle. I I,

2I and the sleeves 22 tothe worm 9. I r I .A somewhat similar arrangement is provided for locking the handle I5 but in this case since and 22 and the spindle I0 force. is applied to turn the the handle I5 is. not required to have more than of, movement the modified. -.As depicted sleeve 14' construction is slightly in Figures 5 and 5A a equivalent. to the sleeve 22 carries a 14 to be rotated in one direction; thisrot'ation isefiected by continued movement of thehandle but is limited by the pin 24 coming into engagement with the longer side (indicated at L) .ofythe recess, the extent of movement thus permitted being 180. i m

In'the modified arrangement shown in Figure 16,01. a braking mechanism similar tothat already described, the drum being mounted on the sleeve 3|] betweenthe outer face ofthe'arm' A of the spider and the cperatinglhandwheel 38 on the screwed rod.. With this arrangement,

since the spindle l is in sliding but non-rotatable connectionwith the inner sleeve 30 which is itselfin slidable but non-rotatable connection with the brake drum 16, the rotation of the spine dle l is always transmitted to the drum it while at the same time the spindle is can be axially adjusted ,eitherquickly by theeccentric stud I3 6; the spindle Ii which carriesthe chuck 2*:ex-

tends through an inner sleeve 30 which is ro tatably mounted in spaced ball or roller bearings 3| carried within an outer sleeve 32 slidable axially in abore in theboss l atthe outerend of the spider arm A. The inner sleeve 30 and the spindle I are held against relative rotation while the spindle I is permitted to move axially in the innersleeve 30 by a key connection 33.

The outer sleeve 32 is formed in its outer periphery'with'the recess l2 into which extends the stud9l3which is mounted eccentrically on the spindle l4 which has the operating handle l5 and latching mechanism described. 0

t The inner sleeve 30 is held against relative axial movement with respect to the outersleeve 32 so that when the outer sleeve 32 is moved axiallyby manipulation of the operating handle lithe inner sleeve 30 is correspondingly moved axially. i :The inner sleeve 30 i formed at the end remote from; the chuck end so as to provide abutments 34 between which extends a flange 35 formed on a rod 36 which is co-axial with the spindle l and extends from the flange in both directions; the end extending towards the chuck is screw-threaded atr3'l and engages in a screw threaded aperture formed co-axially in the. end of the spindle! remote from the chuck} the end of the rod extending in the other direction passes out of the end of the inner sleeve 30 and is provided with an operating handwheel 38. Hence when the inner sleeve 30 is caused to move axially by manipulation of the outer sleeve 32, the axial movement: is imparted through the flange 35 on therod 36 and through thescrew-threaded connection of this rod to the spindle l Which thus also partakes of the axial movement. This axial movement, which istransmitted to the chuck is the equivalent of the coarse or quick adjustment referred to for enabling thejchuck to be retracted and advanced to load arcll in position. The iine adjustment is obtained in this construction by rotating the rod 36 with respect to the inner sleeve 30 (this being permitted by the flange and abutment connection 34, 35 between these two parts). "When the rod 36 is thus rotated, the rod being held against axial movement by the inner leeve (which is itself held through the (in which case the outer sleeve 32, the inner sleeve and the screwed rod 36move together with the spindlel) or slowlyby, rotating the screwed rod 36 (in which case the spindle! slides in the inner sleeve 30).

V i It will be appreciated that in this construc tion the operating handwheel 38 and crewed rod 36 normally rotatewiththe chuck spindle I and the inner sleeve 30.and the fine adjustment is efiected by rotating the handwheel 38 withrespect to the chuck spindle I; in order tohold the handwheel 38iand the-chuck spindle I against such relativerotationdue to inertia efiects during rotation of the roll, the operating handwheel 38 is slidable on a key40 on the end of the rod and a pin 4| is screwed intoa boss on the handwheel; the handwheel i biasejd by a spring 42 to carry the handwheel 38 to an extreme posi tion shown in full lines in Figure 6, whereby the pin 4| is thrustinto a slot in a hollow cylindrical member 43 secured to the brake drum IS, the

, slot locking the pin 4| and the handwheel against rotation with respect to the drum, l6 and hence with respect to the chuck spindle lwhich is connected through the sleeve 30 tothe drum It. When itis desiredto employ the handwheel 38 to make an adjustment, the handwheel is pushed in tothe dottedlin position against the spring 42 to carry the pin clear of the slot and so enable the handwheel 38 and the screwed rod 36 to be turned relatively to the chuck spindle.

,In both of the arrangements described the brake drum [6 is concentric with thespindle I;

in a further modification shown in Figure '7, the brake drum I6 is set to one sideof the spindle l andis connected to the spindle for rotation with the spindle by gearing. In this construction the spindle I is provided :with gearteeth 44 in mesh with which is an intermediate or idler gear wheel 45 rotatably supported on the arm A of the spider and this idler gear meshes with a gear wheel 46 fast on a second spindle 41 parallel with the chuck spindle l but off-set therefrom towards themain shaft X of the spider arms A. Onthis second spindle is secured the brake drum [6 l which through the gearing iscaused to rotate with thechuck spindle l andwhich through the associated brake band or shoes reacts to regulate the rotation of the spindle and .hence the tension of the web passingirom the roll R supported The brake drum l3 and its by the chucks 2. mechanism is in this arrangement accommodated between the planes which are necessarily occupied by the chuck arrangement and so the proouter sleeve 32 and eccentric stud l3)fwould 7 end ofroll is placed, through a key 39, in a slidable but non-rotatable fit in the brake drum vision of 'the brake requires no greater space widthwis than would in any case have to be provided for the chuck spindle. i

This modification follows generally the construction of the modification last referred "to insofar as it employs a screwed rod 36a co-axial with the chuck spindle l for effecting the fine adjustment and an outersleeve 32 having a recess I2 to receive the eccentric stud l3 for effecting the ball or roller bearings 50 by which the spindle is rotatably supported within the sleeve 48, the bush 49 being secured to the spindle l and having the gear teeth ,44 formed on it. The chuck spindle I and its bush 49 are held against axial movement in the sleeve 48 but are permitted rotation in it through the spaced ball or roller bearings 50. This sleeve 48 is slidably but non-'rotatably mounted in a sleeve 32 which corresponds to the outer sleeve 32 referred to in the last modification, and the operating handwheel 38 is held by a flange or plate 5| against axial movement with respect to the outer sleeve 32 while being free' to rotate with respect to the outer sleeve. Hence the handwheel 38 is rotated to effect a fine adjustment, and the screwed rod 36a is moved axially moving with it the sleeve 48 to which the rod 36a is secured, this in turn moving axially the chuck spindle I which is rotatable in this sleeve, the Whole sliding in the outer sleeve 32 which remains held by the eccentric stud l3. The quick adjustment is effected as in the previous constructions by moving the spindle l4 carrying the eccentric stud l3 which moves the outer sleeve 32 axially and, carries with it the assembly (includingthe chuck spindle l, the screwed rod 361; and the sleeve-attached. to it).

To enable the intermediate idler gear 45 to mesh with the teeth on the bush '49, the outer sleeve 32 and the sleeve 48 slidable in it are cut away to permit the idler gear to pass into mesh with the teeth which are made sufficiently long axially to retain their mesh with the intermediate pinion during any position of axial adjustment.

WhatIclaim isz. ;1.A web roll support having in combination a supporting structure, means mounting said structure for rotation, a plurality of rotatable chuck members supported in said structure in opposed relation to receive a pluralityof rolls between them, mechanism to effect both a coarse and a fine axial adjustment of each chuck member, and a brake member operably connected to rotate with one of the opposed chuck members of each pair.

'2. In a web roll support comprising in combination, a pair of spaced supporting members and means mounting said members for rotation and axial movement either bodily together or relatively to one another "in the axial direction respectively, a plurality of rotatable chuck members, mean-s carryingthe said chuck members for axial movement said supporting members, the said chuck members being disposed in opposedv rela-- tion to support a plurality of rollsbetween them, mechanism to efiect a coarse and a fine axial ad justment of each said chuck member, and a brake member operably connected with at least one of said opposed chuck members of each pair.

3. A web roll support having in combination a supporting structure, means mounting said structure for rotation, a'plurality of. rotatable chuck members supported in said structure, in opposed relation to receive a plurality of rolls between them, mechanism to effect. both a coarse and a fine axial adjustment of each chuck member, a

' brake member operably connected with one ofthe able, a-movable abutment engaging thercam groove, means to move the abutment-to. effect the coarse adjustment, and means to move the sleeve angularly while restraining the abutment against movement, to effect the fine adjustment.

4. In a web roll supportcomprising in combination spaced supporting members and means mounting said members for rotation and axial movement either bodily" together or relatively to one another in the axial direction resp'ectively,a

plurality of rotatable chuck members axially mov;

able in said supporting members, the said chuck members being disposed in opposed relation to support a plurality of'rolls between them, mech anism to effect a coarse and a fineaxial adjustment of each said chuck member, a brake member operably connected with one of said opposed chuck members holding each supported roll, the

said axial adjustment mechanism including for each chuck member a sleeve having a cam groove and in which the chuck member is rotatable, a

movable abutment engaging the cam groove,

means to move the abutment to efiect the coarse adjustment, and means to move thesleeve angularly while restraining the abutment against movement, toeifect the fine adjustment.

- 5. A web roll support having in combination a supporting structure, means mounting said structure for rotation, a plurality of rotatable chuck members supported said structure in opposed relation to receive a plurality of rolls between them, mechanism to effect both, a coarse and a fine axial adjustment of each chuck member, and

a. brake member co-axial with and operably connected to rotate with one of the opposed chuck,

members ofea'ch pair.

6. In a web roll support comprising in combination, a pair of spaced supporting members and means mounting said members for rotation and axial movement either bodily together or relatively to one another in the axial direction respectively, a plurality of rotatable chuck members, means carrying the said chuck members for axial movement in said supporting members, the said chuck members being disposed in opposed relation tosupport a plurality of rolls between them, mechanism to eifect a coarse'and a fine axial adjustment of each said chuck membenand a brake member co-axial with and operably connected to rotate with one of said opposed chuck members of each pair. g '7. A web roll support comprising in combination spaced supporting members, means mounting said members for rotation and axial movement either bodily together or relatively to one another in the axial direction respectively, a plurality of rotatable. chuck members axially movable in said supporting members, the said chuck members being disposed in opposed relation to support. a plurality of rolls between them, mechanism to effect a coarse and a fine axial adjustmentof each said chuck member, a brake member co-axial with and associated with at least one of said opposed chuck members holding each supported roll, the said axial adjustmentmechanism including for each chuck member a sleeve havingacam groove and in which the chuck member is rotatable, a movable abutment engaging the cam groove, means to move the abutment to efiect the.

coarseadjustment, and means t move the sleeve angularly to effect the fine adjustment.

"8. A-web roll support having in combination a supporting structure,means mounting said structure for rotation, a pluralityof rotatable chuck memberssupported in saidstructureiin opposed relation to receivela plurality of rolls between them, mechanism to effect both a coarse and a fine axial adjustmentof each chuck member, and

a brake mechanismoff-set from and operably connected'with one "of the opposed chuck members of each pair. l 9. In aweb roll support comprising in combination, a pair of spaced supporting members and means mounting said members for rotation and axial movement either bodily together or relatively to one another in the axial direction respectively, a, plurality of rotatablechuck members,

nation spaced supporting members and means mounting said members for rotation and axial i movement either bodily together or relatively to one another in the axial direction respectively, a plurality of rotatable chuck members axially movable in said supporting members, the said chuck members being disposed in opposed relation to support a plurality of rolls between them, mechanism to effect a coarse and a fine axial adjustment of each said chuck member, a brake mechanism ofi-set from and operably connected with one of said opposed chuckmembers holding each supported roll, the said axial adjustment mechanism including for each chuck member a sleeve having a cam groove and in which the chuck member is rotatable, a movable abutment enga ing the cam groove, means to move the abutment to effect the coarse adjustment, and means to move the sleeve angularly while restraining the abutment against movement to effect the fine adjustment.

11. In a web roll supporting mechanism, a frame, a sleeve rotatably and slidably mounted in the frame, a roll supporting spindle rotatably mounted in the sleeve and being secured against relative axial movement in respect thereto, cooperating means operable when the sleeve is held against rotation to axially move the sleeve and the spindle supported thereby, said cooperating means being operable by rotation of said sleeve to also axially move the sleeve and the spindle supported thereby, and means to rotate the sleeve.

12. In a web roll supporting mechanism, a

' frame, a sleeve rotatablyand slidably mounted in the frame, a roll supporting spindle rotatably mounted in the sleeve and being secured against relative axial movement in respect thereto, cooperating means operable when the sleeve is held against rotation to axially move the sleeve and' the spindlesupported thereby, said cooperating means being operable byrotation of said sleeve to also axially move the sleeve and the spindle supported thereby, means to rotate the sleeve, said cooperating means including an operable part on the frame, means to lock the said part while said sleeve is being rotated by said sleeve rotating means, and means to lock said sleeverotaing means while the part is actuated lBVIn a web roll supporting mechanism, a frame, a sleeve rotatably; and slidably mounted in the frame, a rollsupporting spindle rotatably I .mounted in the sleeve and being secured against relative axial movement in respect thereto, afirst rotatable member adapted to act on the sleeve to axially move itand the spindle, and a second rotatable member adapted to rotate the sleeve, said sleeve and said first member operatively cooperating to cause axial movement of i the sleeve when it is rotated by the second member.

14. In a web roll supporting mechanism, a frame, a sleeve rotatably and slidably mounted in the frame, a roll supportingspindle rotatably mounted in the sleeve and being secured'against relative axial movement in respect thereto, a first rotatable member adapted to act onthe sleeve to axially move it and the spindle means to lock said first means, and a second rotatable member adapted torotate the sleeve, said sleeve and said first member .operatively cooperating ;,to cause axial movement of the sleeve when itis rotated by the second member, and means to lock said second member against being actuated.

15. In a .web roll supporting mechanism, a

, frame, a sleeve rotatably and slidably mounted in the frame, a roll supporting spindle rotatably mounted in the sleeve and being secured against relative axial movement in respect thereto, a first rotatable member adapted to act on said sleeve to axially move it to project one end of the spindle beyond the frame to engage a roll, a second rotatable member adapted to rotate the sleeve, said sleeve and said first memberoperatively cooperating to cause axial movement of the sleeve when it is rotated by the second member, and a brake mechanism secured to the other end, of the spindle.

, 16. In a web roll supporting mechanism, a frame, a sleeve rotatably and slidably mounted in the frame, a roll supporting spindle rotatably mounted in the sleeve and being secured against relative axial movement in respect thereto, said sleeve having a quick cam groove in a portion of its periphery and gear teeth on another portion of its periphery, an eccentrically mounted and rotatable abutment, carried by said frame and cooperating with the cam groove in the sleeve to move it axially when the abutment is rotated, and a rotatable member cooperating with the gear teeth .on the sleeve to rotate it to cause cooperating action between the cam groove and I, the abutment to axially move the sleeve.

17. In a web roll supporting mechanism, a

frame, a sleeve rotatably and slidably mounted,

in the frame, a roll supporting spindle rotatably mounted in the sleeve and being secured against relative axial movement in respect thereto, a quick cam groove provided in the sleeve, means to rotate the sleeve, and rotatable means carried 3 by the frame to cooperate with the cam groove to axially move the sleeve at a time when the rotatable means is rotated and at a time when the sleeve is rotated. V

18., In a device for supporting web rolls, a plurality of arms, a sleeve in each of the arms, a roll supporting spindle rotatable in and axially movable only with each sleeve, a chuck atone end of each spindle adapted to engage a web roll, a brake member operably connected to the other end of each spindle, and means operably connected to each sleeve intermediate the ends of thespindle to separately effect coarse and fine axial adjustment thereof.

19. In a device for supporting web rolls, .a plurality of arms, a sleeve rotatable and slidable in each arm, a roll supporting spindle rotatable in and slidable with the sleeve and havinga chuck.

on one end adapted-to engage a web roll, a brake member operably connected to the other end of I the spindle, a coarse adjustment mechanism supported by the arm and adapted to hold and to slide the vsleeve axially, and a fine adjustment mechanism supported by the arm and adapted to hold and to rotate the sleeve with respect to the arm.

20. Aweb roll support having in combination, a supporting structure, means mounting said structure for rotation, a plurality of chuck members supported in said structure in opposed relation to receive a plurality of rolls between them, mechanism to effect a "coarse axial adjustment of each chuck member, a second mechanism to efiect a fine axial vadjustment of each chuck member, thesaid coarse axial adjustment mechanism including for each chuck member a sleeve having a cam groove and in which the chuck member is rotatable, a movable abutment engaging the cam groove, and means to move the abutment; the said fine axial adjustment mechanism including for each chuck membera means to move the sleeve an ularly while-restraining the abutment against movememr.

21. In a roll support comprising in combination. spaced supporting members andmea-nsmounting said members for rotation and -a-xial movement fine :axial adjustment-of each 'chuck member, the

said coarse axial'adjustm'ent mechanism including for each ichuckhmember a sleevefhaving a cam groove and in which the chuck, member is rotatable, a movable abutment "engaging the-cam groove, and means to move the abutment, the

said fine axial adjustment mechanism including for each chuck member a means tomove the sleeve .angularly while restraining the abutment against movement.

THOMAS RICHARD BENNETT.

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