US1737190A - Perfecting press - Google Patents

Description

Nov. 26, 1-929. J. J. HALLIWELL 1,737,190

PERFECTING PRES S Filed Dec. 9 1926 Patented Nov. 26, 1929 insane JOHN J. HALLI'WELL, OF TUCKAHOE, NEW YORK, ASSIG-NOB TO B. HOE & 60., INCL, OF

NEW YORK, N. Y., A CORPORATION OF NEW YORK PERFECTING PRESS Application filed December 9, 1926.

My invention relates to presses in which a web of paper is fed into the press and is printed first on one side and then on the other. lVhen printing is being done on such a press and when the matter to be impressed upon one side of the web of paper consists of type matter and that on the other side of half-tone cuts, it is desirable to print the side carrying the cuts last, in order to avoid offsetting or blurring of the ink, and the present invention relates more particularly to a press in which it is possible to provide that the printing on the two sides of the web of paper may be done in either desired sequence, without changing the setting of the cylinders or reversing their direction of rotation.

The objects and advantages of the invention will be in part set forth in the following specification and in part will be obvious therefrom without being specially pointed out, the same being realized and attained by means of the instrumentalities and combinations pointed out in the claims hereof.

In a press of this kind, the placing and arrangement of the folder determines on which plate cylinder the stereotype plates for the pages that are to be folded outside will be placed, and which cylinders must carry the plates for the pages which are to be folded inside. Therefore, in order to be able to print either the outside or inside pages last, it is necessary to provide means to pass the Web through the printing couples in either sequence and still maintain the correct register of the impressions on the two sides of the web.

lVith this and the other objects of the invention in view, the invention consists of the novel construction, arrangement and com bination of various devices, elements and parts, as set forth in the claims hereof, one embodiment of the same being illustrated in the accompanying drawings and described in this specification.

In the accompanying drawings,

Fig. 1 is a diagrammatic view of a perfecting unit comprising two printing couples, each consisting of a type cylinder,.an impression cylinder, and inking mechanism,

Serial No. 153,578.

Fig. 2 shows the run of the web when one side is printed first; and

Fig. 3 shows the run. of the web when the other side is printed first. p

. In carrying my invention into effect in the embodiment thereof which I have selected for description this specification and illustration in the accompanying drawings, and referring more particularly now to Fig. 1, I provide a supporting frame 11, in which are journaled in the usual or any suitable manner impression cylinders 12 and 13, plate cylinders 1e and 15, and the inking mechanism, grouped below the plate cylinders respectively, ar

ranged inthe usual .or ,any suitable manner and designated and 17.

The plate cylinders carry stereotype plates,

generally by the numerals 16 18 and 19 on the cylinder 14, and 20 and 21 on the cylinder 15, which are suitably clamped to the respective cylinders, their trailing edges in abutment with margin bars 22, 28, 24 and 25,.said margin bars being fixed to the cylinders and serving to properly position the plates thereon.

I also provide rolls 26, and 27 located below the level of the impression and plate cylinders, and a roll 28 above the same, these rolls being approximately in a line equidistant between the impression cylinders 12 and 13. 1

Referring more particularly to Fig. 1 of the drawing (a part of which is also shown in Fig; 2), the paper proceeds from a web roll (not shown), partly around the rolls 26 and 27, and then to one of the printing couples, 12 14, then partly around the roll 28 to the other of the printing couples, 1315, and is then conducted away to the folders and other mechanism. In this case the side of the paper marked A is printed first, from the plate cylinder 14-, the side marked B being carried blank through the first printing couple and printed last by the plates 20 and 21 on the cylinder 15 and then conducted away. If, however, the side of the web designated B is to be-printed first, it is led over the rolls 26 and 2'7 and then towards the right to the righthand printing couple 1315, in the mannerv shown in Fig. 3, where the side B is printed by the plates 20 and 21 on the plate cylinder 15, passes over and nearly around the impression cylinder 13 and under and nearly around the impression cylinder 12 and then upwards, having the side A printed in passing by the plates 18 and 19 on the plate cylinder 14.

In the printing sequence last described, and diagrammatically shown in Fig. 3, the paper in passing from one printing couple to the other does not pass over the roll 28, but passes directly from the printing couple 13--15 to the printing couple 1214.

The stereotype plates are the full size of a newspaper page, and are arranged on the cylinders with the columns running around the cylinder; thus the circumference of the cylinder is the length of two pages, and it is obvious, in order to have opposite sides of the web properly register, that the distance between the margin bars'of one plate cylinder and the margin bars of the other plate cylinder, reckoned along the path taken by the web, of paper in passing from one cylinder to the other, must be some multiple of a page length in order that suchproper registration may occur.

In Fig. 3, the margin bar 24 is shown on the horizontal centre line of the cylinders.

- The length of the web between the margin ouslybe twice the length of a page.

bar 24. andthe margin bar 23 should obvi- It must be some multiple of a page length in order that the printing on opposite sides of the web will register. But the distance between the margin bar 24 and the margin bar 23 if the latter were set on the same horizontal line as the margin bar 24, such distance being measured along the path of the web of aper, would be obviously more than twice the length of the page, because the paper has to pass across the gap from the cylinder 13 to the cylinder 12, in addition to going half way around it. Therefore the roll 14 must be set so that its margin'bar 23 will be lower than said centre line, so that the paper will meet the same after having passed over exactly. two page lengths. If, however, it is desired to'run the paper and print the sides of-the webin the sequence represented in Fig. 2, it is not practicable to lead the web directly from cylinder 12 to cylinder 13, because the distance from margin bar 23 to the margin bar 24 would be sli htly greater than two page lengths and the impressions would not register. The roll 28 is therefore introduced and positioned appropriately to the rolls 12 and 13 so that when the web of paper is led over said roll 28 the distance traveled by the paper in passing from the margin bar 23 to the margin bar 24 is exactly equal to three page lengths.

It, is obvious, that with a perfecting press arranged in the manner above described and as shown in the accompanying drawings, a web can be printed in either sequence with out changing the setting or direction of rotation of the cylinders, the advantage of which will be apparent.

The operation of my invention has been sufiiciently set forth in connection with the description of its construction, and need not be further explained here.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is as follows:

1. In a web perfecting printing press, the following elements and members in combination: a frame; a printing couple supported in said frame and adapted to print on one side of a web of paper; another print ing couple supported in said frame, having its impression cylinder adjacent but not in contact with the impression cylinder of the first-mentioned couple, and adapted to print on the other side of said web in register with the printing on the side first printed when he web is led directly from the first-mentioned couple to the. second-mentioned coupie; and a roll so positioned that when the web is led first to the second-mentioned printing couple and one side of said web printed thereby, thence led to said roll and thence led to the first-mentioned printing couple and the other side of said web printed thereby, the second in'ipression will register with the first impression. i

2. In aweb perfecting printing press, the following elements and members in combination: a frame; a printing couple supported in said frame and adapted to print on one side of a web of paper; another printing couple supported in said frame, having its impression cylinder adjacent but not in contact with the impression cylinder of the first-mentioned couple, and adapted to print on the other side of said web in register with the printing on the side first printed when the web is led directly from the first-mentioned couple to the second-mentioned couple, and a roll so positioned thatwhen the web is led first to the SCOI1(.-l1111t10fll printing couple and one side of said web printed thereby, thence led to said roll and thence led to the first-mentioned printing coupieand the other side of said web printed thereby, 1

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