A primer in book production by Myrick Frank B

Author:Myrick, Frank B
Language: eng
Format: epub
Tags: Printing
Publisher: New York, Bookbinding & Book Production
Published: 1945-03-25T04:00:00+00:00

high spaces throughout, to take particulat care in the spacing or justification of lines of type, to see that all cuts are typehigh, and that rules or decorative material are equally so.

In addition, there are other operations which should be followed to insure good molding. Thin rules should be protected on both sides by high spacing material, especially if they are not supported by adjacent type. Support should be given on both sides, if the face of the rule is less than the body width. Care must be taken to replace any battered or worn type, and to see that all cast composition—line or single-letter—is smooth and sharp. If fine screen cuts are to be molded, it is wise to have them removed from their wood bases and mounted on solid base material, or better yet, "sweated"—soldered on the finished electro.

Halftones and linecuts alike should be etched deeply and sharply to get the best results in molding. Folios standing alone should have type-high spaces or inverted type placed next to them so that the thin lines will be protected in the molding.

After all corrections have been made and checked, the form to be electrotyped is placed in a sturdy chase (the metal frame which holds the type pages together) with type-high "bearers" or guards on all four sides which prevent the molding wax from flowing out of the area to be molded. Book forms usually contain from 4 to 8 pages.

Once locked "F-proofs," or foundry proofs, are taken for careful checking with the previous sheet, and alinement and all other details minutely examined, for, from this point on, corrections would be extremely difficult and costly to make.

The electrotyper, when he receives the completed form, molds an impression of it in a special type of wax—called a "case." The wax mold is then polished with graphite to make it conductive of electricity, before it is "built-up," e.g., hot wax is flowed on the low portions to make sure that they will not show on the printing plate. The case is graphited again and the edges

Download

Copyright Disclaimer:
This site does not store any files on its server. We only index and link to content provided by other sites. Please contact the content providers to delete copyright contents if any and email us, we'll remove relevant links or contents immediately.