US2058657A - Method of and apparatus for scoring paper - Google Patents

Description

Oct. 27, 1936. w. ANGEL ET AL METHOD OF AND APPARATUS FOR SCORING PAPER Filed July 16, 1955 Z/E/VTU 5 WLANGEL G.K .SCHPA En Patented Oct. 27, 1936 UNITED STATES METHOD OF AND APPARATUS FOR SCORING PAPER William L. Angel and George K. Schray, Portland, Oreg.

Application July 16, 1935, Serial No. 31,588

5 Claims.

This invention relates generally to the art of printing, and particularly to a method of and apparatus for scoring paper.

The main object of this invention is the de- 5 velopment of a method of and the provision of an apparatus for scoring paper during a printing operation without inking the scoring strip or necessitating a second run of the job.

The second object is to eliminate ink marks on the printed job and toprevent the rollers from touching the scoring rule thereby saving the rollers.

The third object is to leave the printed sheet lying flat on the tympan by preventing the rule 15 from pulling the sheet away.

The fourth object is to permit the use of the standard scoring rule, such as is now in common use.

We accomplish these and other objects in the 20 manner set forth in the following specification as illustrated in the accompanying drawing, in which:

Fig. 1 is a perspective view showing the device in use.

25 Fig. 2 is a section taken along the line 2-2 in Fig. 1 showing the rollers applying ink to the type.

Fig. 3 is a view similar to Fig. 2 showing the papers moving up to the type.

- 30 Fig. 4 is a view similar to Fig. 3 but showing the position of the parts during the printing operation.

Fig. 5 is a section taken along the line 5-5 in Fig. 2. 35 Fig. 6 is a fragmentary side elevation of a piece of scoring or perforating rule.

Similar numbers of reference refer to similar parts throughout the several views.

In order to illustrate this invention, there is 40 shown a bed ll of a conventional form of printing press on whose tympan l i may be placed the paper l2 upon which the printing is to be done. The position of a gripper i3 is also indicated. Type M are shown in position on the bed it and an inking roller i5 is shown applying ink to the type M. A perforating or scoring rule H5 is shown in position along side of the type M.

Referring particularly to our invention, which consists of a barrier composed of an elongated 50 bar 11, along whose edge I8 is mounted a facing strip l9 which is supported on the headed guides 28 which are slidable within the bar ll, the heads 2| limiting the separation of the members I l and IS. The members l8 are urged by means of the 55 springs 22 which occupy the recesses 23 in the bar IT. The barrier bar I? is locked into position next to the perforating rule [6, and although the perforating edge of the rule l6 extends beyond the face of the type M, the facing strip i9 extends beyond the perforating edge of 5 the rule 56 while ink is being applied to the type M by the roller I5.

It will be noted that a gripper i3, which holds the paper E2, is directly in line with the facing strip 59 so that during the printing movement of 10 the tympan H, the gripper l3 moves the strip l9 out of the way exposing the perforating rule l6 and permitting it to form the rule of perforations within the paper l2. Obviously, when the tympan I! again moves away from the bed E6, the strip 59 will also move out tothe position shown in Fig. 2, so that the next inking operation will not permit the roller E5 to apply ink to the rule It or to permit the rule is to injure the inking roller I5. It is desirable to provide a gripper I 3 which is somewhat narrower than those in common use.

It can be seen from the foregoing that the use of this device involves no change in existing presses, but merely requires the use of the yield-, able barrier, such as shown in Fig. 5 of the drawing, and that by the use thereof it is possible to print and perforate a sheet of paper at one movement of the press without the slightest danger of producing ink marks on the printed job or having the printing rollers touch the scoring rule;

We claim:

1. A device of the class described consisting of a scoring rule, a gripper and a spring urged barrier exceeding the height of said scoring rule and adapted to be placed adjacent to said scoring rule in a manner that said barrier shall protect said rule from becoming inked but shall yield suiiiciently under the pressure of said gripper during the printing operation to permit said rule to perforate the paper at the same time.

2. In a device of the class described the combination of a scoring rule, a spring urged barrier locked against said scoring rule having sufficient spring tension to prevent the inking rollers from contacting said rule during the inking operation, and a gripper mounted in parallelism with said rule adapted to force said barrier into a rule exposing position during a printing operation.

3. A printing press including a bed, a scoring rule mounted on said bed, a gripper for said bed, a barrier consisting of a bar adapted tobe locked up with said scoring strip upon said bed and in parallelism with said gripper, said bar having a yieldable face adapted to protect the scoring points of the scoring rule against the ink roller during the inking operation and to be moved by the gripper to a position which will expose said points during the printing operation.

4. In a printing press, the combination of a bed having a tympan and a gripper associated therewith, a spring urged barrier adapted to be locked against a scoring rule together with type upon said bed in register with said gripper, said scor- 10 ing rule being more than type high and said barrier being higher than said rule but being capable of yielding under pressure of said gripper during the printing operation for the purpose of exposing said scoring rule.

5. A method of scoring paper while printing consisting of protecting the scoring rule against inking during the inking operation and removing said protection during the printing operation.

WILLIAM L. ANGEL. GEORGE K. SCHRAY.

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