US1732740A - Paper-roll stand - Google Patents

Description

Oct. 22, 1929. A. J. CLINE PAPER ROLL STAND Filed Aug. 25, 1926 2 Sheets-Sheet 1 Oct. 22, 1929. A. J. cum; 13 4!) PAPER ROLL STAND Filed Aug. 25, 1926 2 Sheets-Sheet 2 Patented Oct. 22, 1929 UNITED STATES PATENT OFFICE ALLAN J. GLINE, OF CHICAGO, ILLINOIS, ASSIGNOR TO OLINE ELECTRIC MANUFAC- TURING OOHIANY, 0] CHICAGO, ILLINOI$, A COBIORATION OF ILLINOIS PAPER-ROLL STAND Application med August 25, 1926. Serial no. 131,315.

My present invention relates to roll stands adapted to support rolls of paper or the l1ke as the web is unwound therefrom and fed to a printing press, or other machine adapted to perform an operation thereon.

The primary object of the invention is to improve apparatus of this character with respect to the endwise adjustment of the roll shaft, as may be required to effect proper marginal alignment of the web with respect to the printing mechanism.

For a fuller understanding of the purposes of the invention, reference may be had to my prior Patent No. 1,434,493, granted November 7, 1922. In accordance with the construction therein shown, the roll shaft is driven by a Worm wheel which is mounted in fixed position, the shaft being adapted to be moved endwise with respect thereto and the worm wheel being driven by means of a worm geared to a motor shaft and also mounted in fixed position. In view of the very heavy loads which the roll shaft is called upon to carry, some difficulty has been experienced in the use of apparatus constructed in this manner by reason of misalignment of the worm wheel and worm, resulting from excessive strain thereon, and one of the objects of the present invention is to provide an improvement in the roll driving mechanism which will eliminate this difficulty and possess other advantages of particular importance in meeting the conditions involved in the operation of apparatus of this character.

Another object of the invention is the provision of an improvement in the meansemployed for effecting endwise adjustment of the roll shaft and also in the means for driving said roll shaft, which im rovement will result in a reduction in size 0 the apparatus and of the motor required for driving the same, thus effecting an economy in the cost of construction and in the space required for installation of the apparatus, the latter be ing a highly important factor in large newspaper establishments in which devices of this character are commonly employed.

Other objects and advantages of the invention will be apparent as it is better underonly one is shown on the stood from the following description, which. taken 1n connection with the accompanying drawlngs," discloses a preferred embodiment thereof. I

Referring to the drawings,

Figure 1 is an elevational View of one end of a roll stand, illustrating the parts thereof in which my invention is embodied;

F g. 2 1s an end elevation thereof;

F1g. 3 1s a vertical section, showing the parts in greater detail; and Fig. is a detail sectional view of the drivmg P1111011, showing its roller connection with the shaft on which it is carried.

Upon said drawings I have shown, for illustrative purposes only, an embodiment of theilnvention in which the reference characterfll indicates a standard which, with a similac one at the opposite end of the apparatus, provldes bearings 12 for rotatably supporting a roll shaft 13, upon which are carried opposed brackets or spiders 14 (of which drawings), said spiders each belng formed, in the present instance, with three single, radially disposed arms 15, in the ends of which are carried chuck mechanisms 16 adapted to engage and rotatably support the paper rolls 17 from which the web is unwound and fed to the press, in manner which is well known in the art, it being understood that one of the op posed chuck mechanisms is movable toward or from the other in order to quickly engage or release the rolls, as occasion may require. The shaft 13 is adapted to be rotated to successively bring the rolls 17 into position for the web thereof to be fed to the press when the web from the precedingroll becomes exhausted, and for this purpose I employ a large spur gear 18, fixed to a reduced end V portion 19 of the shaft and meshing with a pinion 21 carried upon a short shaft 22, which is journaled in bearings 23 and 24 secured respectively by screws 25 and 26 to opposite sides of the standard 11. The bracket 24 also forms a housing for a worm wheel 27, pinned at'28 to said shaft 22 and meshing with a worm 29 keyed at 31 to a short cross shaft 32 journaled within the housing 24 and having a gear 33 secured to the outer end thereof, which gear meshes with an intermediate gear 34, in turn meshing with a gear35 carried upon the armature shaft 36 of a small motor 37 mounted upon a base part 38 of the standard 11.

As stated in my prior patent above mentioned, it at times becomes necessary to adjust the shaft 13 lengthwise of itself in order to effect proper marginal alignment of the web from a particular roll and for this purpose I employ, in the present apparatus,

a device somewhat similar to that shown in my said prior patent with, however, certain improvements which make for increased'efiiciency and economy in the space required for installation of the apparatus. A threaded extension 39 is secured to the end of the reduced portion 19 of the shaft 13 by means of an end plate -11, fitting upon an enlarged part 42 of said extension 39 and secured to the shaft portion 19 by means of screws 43. The opposite end of said extension is slidably disposed within a hub 44 of a plate 45, secured by screws 46 to a housing 47 attached to the upper part of the standard 1-1 on the outer side thereof. A worm wheel 48, having a threaded hub part 49, is mounted upon the threaded portion of said extension 39, and said hub part is mounted in anti-friction bearings 51 so that the same may freely rotate within the housing member 47 which is formed with a flange part 52 arranged between the anti-friction devices. Said worm wheel 18 meshes with a worm 53 upon a short shaft 54, journaled in the upper part of. the housing 47 and projecting into a gear housing 55 in which is arranged a train of gearing comprising a gear 56 on the end of the shaft 54, an intermediate gear 57 and a gear 58 mounted upon the armature shaft 59 of a small motor 61, which i supported at the top of the housing member 47 and is adapted to be driven when it is desired to adjust the shaft 13 to effect marginal adjustment of the web.

As hereinabove pointed out, some difficulty has been experienced in the use of the appara tus shown in my prior patent by reason of the fixed positions of the worm wheel and worm by which the roll shaft was driven, and to overcome this difficulty I mount the pinion 21, by which the gear 18 is driven, in the present apparatus, so that the same may float may the pinion 21 thus move freely with the gear 18 during adjustment of the shaft 13, but to some de ree may accommodate its position to any distortion or malalignment of said gear 18 resulting from excessively heavy loads upon the shaft 13.

The use of the small, high speed motors 37 and 61 with reduction gearing, as illustrated and described, requires less space than the large motors and direct worm drives shown in my prior patent, and the present invention, together with an invention of Lloyd M. Strand and John A. Hollander, described and claimed in a co-pendingapplication filed by them and relating to a chuck mechanism with which it is possible to eliminate-the double arm construction shown in said prior patent, effects very material savings in space, as well as cost of construction, and improves the efiiciency and usefulness of the apparatus. It will be noted that, with the gear 18 fixed on the shaft, the hub thereof may be relatively narrow and the bracket 23 is arranged so that the same may be disposed in overlapping relationship with respect to the chucks 16 on the spider arms 15, as shown in Fig. 1. The standard 11 is apertured to receive the end of the pinion 21 when it is at the position shown in Fig. 3 of the drawings, which enables the gear 18 to be disposed very close to said standard 11, thus further reducing the space required.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes may be made in the form, construction and arrangement of the parts without departing from the spirit and scope of the invention, or sacrificing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.

I claim:

1. A roll stand comprising a rotatable element having a plurality of pairs of arms in each pair of which a roll is adapted to be supported for unwinding as the web is fed to the press, means for moving said element endwise to adjust the margin on the web, a gear fixed to said element, a source of power, and a pinion in mesh with said gear and driven from said source of power, whereby said element may be turned to successively bring the rolls into feeding position, said pinion being mounted for free floating movement whereby it may remain in mesh with said gear as the latter is moved through adjustment of said rotatable element.

2. A roll stand comprising a rotatable member upon which a roll is supported for unwinding as the web is fed to the press, means for moving said member endwise to adjust the margin on the web, a driving element fixed to said member, a source of power, and a floating driving connection between said source of power and said driving element.

3. A roll stand comprising a rotatable member upon which a roll is supported for unwinding as the web is fed to the press, means for moving said member endwise to adjust the margin on the web, a driving elemont fixed to said member, a source of power comprising a small motor, a shaft, reduction gearing between said motor and shaft, and a floating driving element on said shaft and meshing with the driving element on said rotatable member.

4. A roll stand comprising a roll shaft, means for rotating the same, means for supporting a Web roll on said shaft, and means for moving the shaft endwise to effect marginal adjustment of the web, said means for driving said roll shaft including a driven element secured to the shaft, a driving ele ment in permanent engagement with said driven element and movable therewith, a shaft upon which said driving element is slidably supported andmeans providing a rolling connection between said driving ele ment and its shaft.

5. A roll stand comprising a rotatable member upon which the roll is supported for unwinding after the web is fed to the press, means for moving said member endwise to adjust the margin on the web, and intermeshing driving elements, one of which is fixed to and adapted to move with said rotatable member when the latter is moved endwise.

In witness whereof, I hereunto subscribe my name to this specification.

ALLAN J. CLINE.

Images