US1686488A - Device for adjustably controlling the location of roller shafts in paper-feeding machines - Google Patents

Description

Oc't. 2, 1928. f

A. L. FOSTER DEVICE FORYADJVUSTABLY CONTROLLING THE LOCATION oF'RoLLER sHAFTs 1N PAPER FEEDING mcHINEs Filed Ma; 5. 1927 Patented Oct. 2, 1928.

UNITED s ARTHUR L. FOSTE, OF MIDDLETOWN, NEW JERSEY, SSIGNOR TO MANIFOLD SUP- PLIES COMPANY, OF BROOKLYN, NEW YORK, A CORPORATION OF NEW' YORK.

Dnvrcn rca ADJUSTABLY Application filed May 5,

This invention may be employed. with particular advantage in the manufacture of what'is known as carbon paper, to wit, thin tissue paper coated with transfer material; for it is highly important to have the paper pass into the coating machine substantially uniformly and straight; to avoid waste of the material at its edges and to facilitate the operat-ion of coating it. The manufacturers 0i such paper furnish the same to the trade in large rolls from which the paper is unwound into the carbon coating machines. Although such paper is intended to be plane, it is not uniformly so and `tends to shift from side to side in its passage to the coating machine, in accordance with the departure of the paper from the ideal plane toward either edge of it, i. e., if the paper is buckled on the right hand edge, it tends to shift toward the left, and vice versa.

ln order to correct such tendency for the paper to run crookedly into the coating machine from its original supply roll it is necessary to angularly shift the axis of rotation of' such roll from time to time, out ot parallel relation with the axis ot the first roller over which the paper passes in the coating machine; and my present invention provides meansV for readily ehecting such adjustment without interfering with the continued operation of the machine.

My invention includes the various novel features of construction and arrangement hereinafter more deinitel specied.

ln said drawings; Fig. is a fragmentary elevation of the initial end of a carbon paper coating machine embodying my inl Veiiionir fr t 1 i f 1. isa a ena anviewo the Iechanism shovilil1 in ln said figures the machine is provided with parallel side frames 1 in which are journaled the shafts 3 and 4 of a pair of feed rollers 5 and 6. Said roller 5 is arranged to be positively rotated in' the direction of the arrow marked thereon and said roller 6, which is `free to gravitate toward said roller 5, so as to pinch the paper web 7 between them, is provided with a cloth cover 8 to rictionally engage the paper and is idly rotated by such frictional engagement. The paper is thus ted in the di- 1927. Serial No. 189,008.

rection indicated by the arrows and is drawn from the supply roll 10 over the guide roller `11 which latter has its shaft 12 journaled in said frames, and is the initial roller en` countered by the paper 7 `in its introduction to the coating machine from the supply roll.

Said supply roll 10, in the form furnished by the manufacturer, is adapted to be rigidly connected with the shaft 1d, conveniently by conical wedge sleeves 15 which are driven into the opposite ends of the roll in substantially tight relation with said shaft 1d. lf the paper 7 were perfectly plane, i-t would suce to mount said shaft 14 with its axis parallel with the shaft of said initial roller 11. However, in order to edect the-angular adjustment of the axis of said shaft 1d with reference to the stationary axis of said initial roller 11, l provide the pair of slide journal boxes 17 each having a bight dangeA 18 adapted to be looped over a stationary abutment 20 upon the respective side trame 1y. The stress of the feed rollers 5 and 6 upon the paper 7 tends to pull the rollv 10, and said boxes 17, toward the right in the drawings, and such movement is opposed by' the journal screws 21 which are 1n screw threaded vengagement, with the respective bight ianges 18 and which are adjustable by their wheel heads 22 to bear upon the respective abutments and thus determine the position of the axis of the shaft 1d., which is coincident with that of the roll 10 of paper 7. Said journal screws 21 are thus carried, independently of the frame 1, by their respective bearings 17, in which they are axially adjustable by rotation, and each of said bearings 17 is at all times looseand removable witn respect to said frame 1,

without disturbing the adjustment of its screw 21. lt is toy be understood that by advancing and retracting the respective screws 21, the axis ofthe shaft 14 may be made parallel with the axis of theA initial roller 11 of the coating machine, or be angularly `diverged with respect thereto toward either side of the machine in compensation `for every departure of the paper web 7 from the ideal plane. As before noted, said bearings 17 are loose upon the frame 1 upon which they are at by the abutments 20 projecting in their bight flanges 18; so

that such adjustments do not cause the shafts ferential adjustment of said screws 21. For

instance` if the paper 7 is -found to be departing from its proper position toward Vthe left in its movement toward Vthe initial roller 11, because it is buckled upon its right hand edge, i. e., is longer upon its right hand edge than upon its left hand edge, such movement may be checked and vthe paper caused to run straight by positioning the axis of the shaft 14 so that it is more remote from the axis of the sha-ft 11 at the right hand side than at the left hand side of the machine and such adjustment may be eHect/ed by turning the right hand screw 21 to the right while bearing against its abutment 20 and thus retracting thol slide bearing 17. If and when the paper runs straight following such adjustment, the rotation of said screw 21 may be reversed to restore the axis of the shaft 14 to parallel relation with the initial'roller 11. Similar adjustment of the other journal screw 21 may be effected to correct buckling upon the left hand edge of the paper web 7 which tends to divert it toward the right with reference to the initial roller 11.

Although said shaft 14 may be directly yjournaled in the journal boxes 17, if it is desired to merely straighten and not stretch the paper 7 by adjustment of the screws 21 I prefer to mount it upon removable shaft bearing blocks 24 in the respective seats 25 of said journal boxes and to oppose such bearing blocks with respective brake shoes 26 which may be frictionally engaged with the shaft 14 by respective adjustable brake screws 28 which may be manipulated by their wheel heads 29, in order to effect the cooperative straightening and stretching of the paper web 7 above contemplated.

It is to be understood that said lbrake screws 28 may be adjusted to predetermine the tension upon the paper web 7 required to revolve the shaft 14 of the roll 10 when thus clamped by the brake shoes 26 and suc-h frictional engagement must, of course, be varied in accordance with the thickness and condition of the paper being unrolled; being,

rangement herein set forth, as it isobvious that various modifications may be made therein without departing from the essential features of my invention, as dened in the appended claims.

I claim:

1. A device adapted for angularly adjusting a shaft; comprising a slide journal box having a bight flange adapted to Abe loosely, removably looped over a stationary abutment; a journal screw extending in threaded engagement with the end of Vsaid bight flange, axially movable by rotation therein,

and adapted ,to bear upon such abutment,-

whereby rotation of said screw is adapted to shift said journal box relatively to said abut ment, in but one direction, and said screwmay be rotated in the opposite direction without relative movement of`said box and abutment.

2. In a device adapted for angularly adjusting a Vshaft arranged to carry a roll of buckled web; the combination with a frame comprising opposite side members; of a roller; bearings holding the axis offsaid roller in fixed transverse relation to said frame members; an abutment on each of said frame members; a pair of slide journal boxes, oppositely mounted on said frame members and having respective bightflanges, respectively loosely, removably looped over said abutments; a pair of shaft bearing blocks, coaxially alined in the respective boxes; a web roll shaft journaled in said blocks; and'means, includingscrews respectively in threaded engagement with said boxes and axially movable therein, by rotation thereof, in opposition to said abutments and adjustable to variably set said boxes with respect to said abutments; whereby said boxes are adjustably movable to angularly shift said shaft, to and from parallel relation with said roller, and thereby compensate for. buckled condition of either edge of the web carried by said shaft, and thus straighten said web between said roller and said shaft.

3. In a device adapted for coordinately angularly adjusting a shaft. arranged to carry a roll of buckled web and controlling the revolution of said shaft; the combination with a frame comprising opposite side members; of a pair of feed rollers arranged to progress such web between them; bearings holding the axes of said feed rollers at right angles to said frame members; an abutment on each of said fra-me members; a pair of slide ournal boxes, oppositely mounted on' sai ing blocks, coaxially alined in' the respective boxes; a web roll shaft journaled lin said blocks; a pair of brake shoes, respectively fltted over said shaft, in said boxes; means in said boxes, arranged to clam said shoes upon said and thereby frictioname members; al pair of shaft bearl ally oppose the rotation of said shaft;'and journal screws, adjustable to variably set said boxes with respect to said `abutments;

whereby saidboxes are adjustably movable to angularly shift said shaft, to and from parallel relation with said feed rollers, and thereby compensate for buckled condition of either edge of the web carried by said shaft, and thusl cooperatively straighten and stretch said web between said feed rollers and said shaft.

4. In a device adapted for coordinately angularly adjusting a shaft arranged to carry a roll of buckled web, and controlling the revolution of said shaft; the combination with a frame comprising opposite side members; of a pair of feed rollers arranged to progress such web between them;bear ings holding the axes of said feed rollers at right angles to said frame members; and abutment on each of said frame members; a pair of slide journal boxes, oppositely mounted on said frame members; a pair of shaft bearing blocks, coaxially alined in the respective boxes; a web roll shaft journaled in said blocks; a pair of brake shoes, respectively iitted over said shaft, in said boxes means in said boxes, arranged to clamp said shoes upon said shaft and thereby friction-` ally oppose the rotationof said shaft; and adjustable journal screws, carried by said boxes, against said abutments; whereby said boxes are adjustably movable to angularly shift said shaft, to and from parallel relation withsaid feed rollers, and thereby compensate for buckled conditionI of either edge of the web carried by'said shaft, and thus cooperatively straighten and stretch the axes of said .feed rollers at right angles n to .said frame members; an abutment on each of said frame members, alined parallel with said roller axes; a pair of slide journal boxes, oppositely mounted on said frame members and having respective bight fian'ges, respectively looped over said abutments; a pair of shaft bearing blocks, .coaxially alined in the respective boxes; a web roll shaft journaled in said blocks; a pair of brake shoes, respectively fitted over said shaft, in said boxes; respective adjustable brake screws, .in said boxes, arranged toclamp said shoes upon said shaft and thereby frictionally oppose the rotation of said shaft; and -adjustable journal screws, respectively extending in the bights of said flanges, against said abutments; whereby said boxes are adjustably movable to angulary shift said shaft, to and from parallel relation with said feed rollers, and thereby compensate for buckled condition of either e edgevof the web carried by said shaft, and thus cooperatively straighten and stretch said web between said feedrollers and said shaft. In testimony whereof, Iv have hereunto signed my name at Brooklyn, New York, this 21st day of April, 1927.

ARTHUR L.4 FOSTER.

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