US2146459A - Printing press former - Google Patents

Description

Feb. 7, 1939. H A. w. wooD PRINTING PRESS FORMER Filed July 12, 1955,

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7 PRINTING PRESS FORMER Filed July 12, 1935 5 Sheets-Sheet 3 Lawm- I l r l fidezr. m 772600 Patented Feb. 7, 1939 vUNITED STATES PATENT OFFICE PRINTING PRESS FORDIER Application July 12, 1935, Serial No. 30,970

4 Claims.

This invention relates to a device for associating webs and it is particularly applicable for use with a newspaper printing press which delivers its products in tabloid form.

The principal objects of the invention are to provide a set of formers, particularly adaptable to the production of tabloid products, in which each line of webs comingdown its former may be adjustable with respect to the other lines of webs;

A to provide a combination comprising half formers for the efficient association of tabloid products capable of permitting an efiicient handling of the Webs in such a manner as to prevent wrinkles in the Webs and tearing at their edgesi to provide means for eliminating the troubles, caused by the usual symmetrical triangular former, which is arranged so that the webs pass down back of them at an angle to each other whereby it is diflicult to register them accurately; to provide this feature in the form of two half formers in which the angle over which the web passes therefrom is identical whereby, instead of having two half formers directing the half webs in different directions, two half formers are provided which direct the half webs in parallel directions, and to provide full individual adjustments for the formers both angularly and laterally.

Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in which Fig. 1 is an end view showing four half formers, two of them being illustrated without the mechanism which goes with them;

Fig. 2 is a similar view on enlarged scale of two of the formers;

Fig. 3 is a side View partially in section;

Fig. 4 is a sectional view of the features shown in Fig. 3, taken on a plane at the rear of the parts shown in Fig. 3, and

Fig. 5 is an end view of a part of the means for adjusting the formers laterally.

For tabloid newspapers it is customary to use the regular newspaper symmetrical triangular former, by placing a slitter in line with the center of the former. The main disadvantage of this ordinary construction is that, with the paper silt before it passes over the former, there is a tendency for the slit webs to separate as they progress down the former, leaving a space between the two lines of webs. This often causes wrinkles and sometimes nicks on the edges of the web, resulting in an imperfect product and there is no way to regulate the two Webs so that they will pass in a perfectly straight line over the former and at a uniform very small distance apart.

As stated above, this invention is designed to eliminate these troubles and it involves the use of half formers separated from each other and 5 all having their delivery edges turned in the same y direction instead of being turned alternately in opposite directions, as in the 01d form. In other words, the webs come from the formers in parallel directions instead of in directions that are at an angle to each other. Each half former is provided with a supporting plate to assist in leading the web down its surface. The tabloid newspaper is a recent innovation and printing presses heretofore have not been designed to print tabloids. The regular size printing press has been employed and provided with an attachment to permit the delivery of tabloid products. This invention, as stated, has for its principal purpose the production of tabloid products with each line of webs coming down the former adjustable with respect to the others.

The machine is shown as mounted on a frame I, which supports two horizontal cross frames 2, between which two frames is slidably mounted a former carriage 4. The frames 2 are provided with tracks 3 for supporting the overhanging edges of the carriage 4. This carriage is provided with a screw5 threaded into the end of the carriage. On this screw is fixed a hand wheel 6. The screw is provided with a head which enters a recess 1 in a bracket secured to the frame I. Therefore, the screw can be turned and cannot move longitudinally but its turning will result in the adjustment of this whole carriage.

A single carriage 4 carries a pair of former frames 8, both located at an angle and each one carrying a plate 9, preferably of sheet metal and of a general triangular shape. The sheet 9 in each case constitutes the surface over which the paper is received and travels and it is turned down around the cylindrical former support 8, around which, of course, the sheet metal 9 passes.

It will benoticed that these two formers 8 are arranged at the same angle so that the webs coming down around them from above will leave them in parallel planes. The carriage 4 also carries under it the two nipping rolls Ill and two former rolls 21.

Extending upwardly from the former carriage 4 is an upright standard I2 on which are carried two brackets I3 which provide bearings for a shaft I4. On this shaft two brackets 15 are slidably mounted, each one secured to one of the formers 8. Thus the formers 8 are pivotally mounted on the shaft l4 and can be adjusted about this pivot.

At the bottom of the former, there is a shaft l1 parallel with the shaft [4 which has a square section l6 mounted in a bracket I8 which has an open ended square slot fitting the square portion N3 of the shaft. Collars on opposite sides of the bracket [8 prevent longitudinal motion of the shaft [1. This bracket I8 is slidably secured to the former carriage by bolts or the like 34. The adjustment is provided by means of a regulating screw 35 which swings the half former and governs the angle which it makes with the horizontal. The shaft H is threaded on each end to cooperate with adjusting hand wheels l9 and 20. These hand wheels are rotatably mounted and secured against end motion by brackets 2| and 22 which are secured to, and support, the lower ends of the two half formers respectively.

It is apparent that by regulating the hand wheel 6 the complete former carriage carrying the two half formers may be shifted laterally and that by individual adjustment of the hand wheels l9 and 2B, the half formers may be shifted individually without disturbing each other. This latter adjustment permits a series of webs coming over the half formers to be properly lined up.

At the top of the formers is a drag roll 25 arranged in the usual way and cooperating with slitters 26 to provide the desired number of webs entering the folder. In newspaper presses it is customary to 'run a web four pages wide, and Fig. 1 shows sufficient equipment to accommodate such a run. The two formers at the left are, of course, provided with the mechanism shown connected with the two at the right.

It will be seen that two webs W and W may be combined and passed over the former rolls 2? and then through the nipping rolls ID to cutting and folding cylinders 29 and 3E). From these cylinders the webs are folded oil through the fold ing rolls 3! or in any other desired way.

It will be seen, therefore, that a new combination is shown comprising a series of half formers, each separate from the other half formers and each adjustable with respect thereto and that they can be operated to associate tabloid products efficiently and permit efiicient handling of the webs to prevent wrinkling and tearing and that the plates on the formers are provided to facilitate the leading of the web.

It will also be seen that this parallel delivery of the webs from the formers is a feature by which the registration of the webs can be brought about accurately and efficiently.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is:

l; A printing press web associating device comprising two half width formers having parallel delivery edges, means for adjusting the distance between them, and means for adjusting both formers as a whole laterally.

2. In a printing press web associating device, the combination of a laterally adjustable carriage, a pair of half width formers mounted thereon, having parallel delivery edges, and movable therewith, a non-rotatable screw having two screw threaded portions, brackets secured to each former, and a nut mounted on each thread and one connected with each bracket for adjusting each bracket and its former independently of the other in the same direction as the carriage is adjusted.

3. In a printing press web associating device, the combination of a carriage, a pair of half width formers mounted thereon and .movable therewith, both having parallel inclined delivery edges, means for moving the carriage laterally, a non-rotatable screw having two screw threaded portions, brackets secured to each former, and a nut mounted on each thread and one connected with each bracket for adjusting each bracket and its former independently of the other in the same direction as the carriage is adjusted.

4. In a printing press web associating device, the combination of two formers arranged parallel to each other, a plate on each former of gen-. eral triangular shape with one edge vertical for receiving the web and guiding it to the former, said formers being arranged to deliver the webs in parallel planes, a roll adjacent to each former for receiving the web therefrom, said roll being mounted on the carriage, and nipping rolls supported by the carriage for receiving both webs.

HENRY A. WISE WOOD.

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