US1744729A - Rotary web-printing press - Google Patents

Description

Jan. 28, 1930. H. M. BARBER ROTARY WEB PRINTING PRESS Filed Nov. 8. 1928 2 Sheets-Sheet 1 INVENTOR ATTORNEYS Jan. 28, 1930. H. M. BARBER ROTARY WEB PRINTING PRESS Filed Nov. 8. 1928 2 Sheets-Sheet 2 INVENTOR 7%M 72 1 ATTORNEYS Patented Jan. 28, 1930 UNITED sTATEs PATENT OFFICE HOWARD M. BARBER, OF PAWCATUOE, CONNECTICUT, ASSIGNOR TO 0. COTTRELL & SONS COMPANY, OF WESTERLY, RHODE ISLAND, A CORPORATION OF DELAWARE ROTARY WEB-PRINTING PRESS Application filed November 8, 1928. Serial No. 317,990.

The object of my present invention is to provide a multi-color rotary web printing press which is especially designed for so called bag printing; whereby the printed web which may be of thin or loosely woven material, such as burlap, will have the successive printings thereon spaced at different distances apart according to the length of the sheets to be cut from the web.

My invention comprises an impression cylinder of a predetermined diameter and coacting form cylinders of larger or smaller corresponding-diameters, which form cylinders I will hereinafter designate as change form cylinders as they may be of any desired corresponding diameters within a reasonable range and not necessarily sub-multiples of the diameter of the impression cylinder, to suit bag blanks or sheets of different lengths; the change form cylinders of one diameter for one predetermined length of sheet being readily substituted for change form cylinders of another diameter for another predetermined length of sheet, without rebuilding the press.

My invention further comprises means whereby the form cylinder inking mechanisms may be readily adjusted to coact with chan e form cylinders of different correspon mg diameters, said inking mechanisms being movable in a horizontal plane toward and away from their respective change form cylinders, the position of one of the inking mechanisms being rotatively adjustable to bring it into the proper coactive position wit-h respect to its change form cylinder.

My invention more particularly includes a three color rotary web printing press having a sectional stand for carrying the inking mechanisms, said stand comprising a main section carrying two of the inking mechanisms and an auxiliary section pivoted to the main section and carrying the third inking mechanism. 7

A practical embodiment of my invention is represented in the accompanying drawings, applied to a three color rotary web printing ress.

P Fig. 1 represents a detail'side elevation illustrating the inking mechanisms adjusted for coaction with relatively large change I form cylinders.

Fig. 2 represents a similar View illustrating the inking mechanisms adjusted for coaction of corresponding small diameters are repre-,

sented in Fig. 2 as coacting with the impression cylinder 3. These change form cylinders are driven from the impression cylinder and the circumference of each form cylinder is twice the length of the sheet designed to be cut from the web. Radially adjustable bearings 10, 11 and 12, spaced equal distances apart, are provided at each side of the main frame 1 for mounting the shafts 13, 14 and 15 of the relatively large change form cylinders or the shafts 16, 17 and 18 of the group of change form cylinders may be adjusted for coaction with the impression cylinder. Only two sets of change form, cylinders are represented herein but it is to be understood that these groups of changes form cylinders may be of any desired corresponding diameters not necessarily submultiples of the impression cylinder, so that successive printings on the web may be spaced any desired distance apart, within reasonable limits, to suit sheets of different lengths to be cut from the web.

In the three color rotary web printing press illustrated, the radially adjustable bearings 10 and 11 are arranged at equal distances below and above a horizontal plane passing through the axis of the shaft 2 of the impression cylinder while the radially adjustable bearings 12 are arranged above the bearings 11.

Because of the provision of change form cylinders of different corresponding diameters I have found it necessary, to provide means whereby the inking mechanisms for the several cylinders be not only adjustable as a whole in a horizontal plane toward and away from their respective change form cylinders but also that means must be provided for moving the upper inking mechanism independently of the other inking mechanisms toward and away from its change form cylinder, in the present instance by a rotative movement.

The inking mechanism stand comprises a mainsection 19 and an auxiliary section 20 pivoted at 21 thereto to swing vertically into ifferent rotative positions. The auxiliary stand-section 20 may be locked in its differ ent rotatively adjusted positions by a lock bolt 22 which passes through an elongated slot 23 concentric with the axis of the hinge 21. The main stand section 19 carries two of the inking mechanisms denoted as a whole by 24 and 25 and the auxiliary stand section carries a third inking mechanism denoted as a whole by 26.

The inking mechanism 24 is shown as provided with two change form cylinder inking rollers 27, the inking mechanism 25 with two change form cylinder inking rollers 28 and the inking mechanism 26 with two change form cylinder inking rollers 29.

The inking mechanism stand may be locked in its adjusted position with respect to the change form cylinders on each side of the main frame by a lock bolt 30 which passes through a horizontal slot 31in a bar 32 pro jecting from the main frame 1.

The sectional inking mechanism stand may be moved in a horizontal plane toward and away from the change form cylinders in the usual manner by the hand wheel 33, carried by the main stand section 19. The means which I have shown for rotatively adjusting the position of the auxiliary stand section 20 with respect to the main stand section 19 is a crank handle 34, the shaft 35 of which is mounted in the main stand section 19 and has a worm connection 36, 37 at each side of the main frame with a nut 38 engaging a screw 39 pivoted at 40 to the auxiliary stand section 20.

I n 0p'emtion.The inking mechanism stand is moved in a horizontal plane toward the change form cylinders until the inking rollers 27 and 28 of the inking mechanisms '24 and 25 are brought into contact with their change form cylinders. The lock bolt 22 is then loosened and the crank handle 33 is manipulated to swing the auxiliary stand section 20, to bring the inking rollers 29 into contact with their change form cylinder. The bolt 22 is then tightened to. lock the auxiliary stand section 20 in its rotatively adjusted position. The inking mechanism stand as a whole may then be locked in its adjusted position by tightening the lock bolt 30.

From the above description it will be seen that I am enabled to provide a very simple means for adjusting the positions of the several inking rollers with respect to their change form cylinders ofvarious corresponding diameters to space successive printings at diflerent distances aparton the web according to the length of the sheets to be out therefrom.

It is evident that various changes may be resorted to in the I construction, form and arrangement of the several parts without departing from the spirit and scope of my invention, hence I do not intend to be limited to the particular embodiment herein shown and described, but

What I claim is:

1. In a multi-color rotary web printing press, an impression cylinder, change form cylinders, adjustable bearings therefor, and change form cylinder inking mechanisms movable in a horizontal plane toward and away from their respective cylinders, the position of one of said inking mechanisms being rotatively adjustable.

2. In a multi-color rotaryweb printing press, an impression cylinder, change form cylinders, radially adjustable bearings therefor, and change form cylinder inking mechanisms movable in a horizontal plane toward and away from their respective cylinders, the position of one of said inking mechanisms being rotatively adjustable.

3. In a multi-color rotary web printing press, an impression cylinder, change form cylinders, adjustable bearings therefor, change form cylinder inking mechanisms, and a sectional stand therefor movable in a'horizontal plane toward and away from the change form cylinders, one of the stand sections being rotatively adjustable.

4. In a multi-color rotary web printing press, an impression cylinder, change form cylinders, radially adjustable bearings therefor, change form cylinder inking mechanisms, and a sectional stand therefor movable in a horizontal plane toward and away from the change form cylinders, one of the stand sections being rotatively adjustable.

5. In a multi-color rotary web printing press, an impression cylinder, change form cylinders, adjustable bearings therefor, change form cylinder inking mechanisms, and a sectional stand therefor movable in a horizontal plane toward and away from the change form cylinders, said stand comprising a main section and an auxiliary section pivoted thereto to rotatably adjust the position of the inking mechanism carried thereby.

6. In a multi-color rotary web printing press, an impression cylinder, change form cylinders, radially adjustable bearin s therefor, change form cylinder inking mec anisms, and a sectional stand therefor movable in a horizontal plane toward and away from the change form cylinders, said stand comprising a main section and an auxiliary section pivoted thereto to rotatably adjust the position of the inking mechanism carried thereby.

7. In a three color rotary web printing press, an impression cylinder, three change form cylinders, adjustable bearings therefor, change 'form cylinder inking mechanisms, and a sectional stand therefor movable in a horizontal plane toward and away from the change form cylinders, said stand comprising a main section carrying two of the inking mechanisms and an auxiliary section pivoted to the main section and carrying the third inking mechanism, whereby the position of the third inking mechanism may be rotatively adjusted.

8. In a three color rotary web printing press, an impression cylinder, three change form cylinders, radially adjustable bearings therefor, change form cylinder inking mechanisms, and a sectional stand therefor movable in a horizontal plane toward and away from the'change form cylinders, said stand comprising a main section carrying two of the inking mechanisms and an auxiliary section pivoted to the main section and carryin the third inking mechanism, whereby the osition of the third inking mechanism may e rotatively adjusted.

9. In a three color rotary web printing press, an impression cylinder, three change form cylinders, adjustable bearings therefor, two of said change form cylinders being located at equal distances above and below a horizontal plane passing through the axis of rotation of the impression cylinder, and three inking mechanisms for the chan e form cylinders, movable in a horizontal p ane toward and away from their respective change form cylinders the position of one of said inking mechanisms being rotatively adjustable.

10. In a three color rotary web printing press, an impresslon cylmder, three change form cylinders, radiall adjustable bearings therefor, two of said 0 ange form cylinders being located at equal distances above and below a horizontal plane passing through the axis of rotation of the impression cylinder,

-6th ay of November A. D. 1928.

. BARBER.

and three inking mechanisms for the change form cylinders, movable in a horizontal plane toward and away from their respective change form cylinders, the position of one of said inking mechanisms'being rotatively adjustable.

In testimony, that I claim the foregoing as m invention, I have signed my name this HOWARD M.

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