Practical printing; explaining the ways and means of production in the modern printing plant by Sherman George

Author:Sherman, George
Language: eng
Format: epub
Tags: Printing
Publisher: New York, Oswald publishing company
Published: 1911-03-25T05:00:00+00:00

AWAITING CUTS

I L

HELD UP

PROOF OUT

ENTERED

PMall

joblickcli

in tbb

Figrure 86

goes to the compositors' hands. Finally, after reaching the proof-room all tickets are returned to the third or proof-out'' bin. Two or three bins, similar in construction, are attached to the ends of both the Gordon lockup and the cylinder lockup's imposing stones. These are labeled "Ready for Press."

CHAPTER VIII

Imposition and Lock-up

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MOST writers on the subject of Stonework" have given the greatest amount of space to form diagrams and analytical notes pertaining thereto. Books of this character are instructive and of great value as works of reference. Most of them are available at a very moderate price and this fact offers sufficient excuse for omitting form diagrams in this article. At present the subject is to be treated from a mechanical standpoint and along lines that are planned to facilitate economical production.

Improvements in methods and materials associated with this branch of the trade are keeping pace with the advancements in all other departments. Close register three-color process plates have brought about metal bases and register hooks just as the electrotype created the necessity of patent blocks. In like manner, larger forms and rapid printing presses are demanding greater stability and increased accuracy in chases, quoins, marginal furniture and other materials required in building a perfect book form.

Liberal investment in adequate quantities of marginal and lock-up furniture in both metal and wood is suggested as a first step toward securing an ideal equipment. It pays to discard old wood furniture that has become swelled

and waiped thru contact with water, lye, or benzine. Material of this character is one of the causes of poor reirister, work-ups and pull-outs. Wood furniture, even when new, is not always perfectly square. When you receive a consignment of furniture always test it with a pair of calipers, across its width. See to it that it measures the same at the top and bottom. Locking with furniture with sloping side walls causes type to arch or bulge when pressure is applied to the quoins at the foot of a page.

Labor-saving metal furniture is the most practical for filling in margins when the form consists of pages of hand-set foundry type. When linotype slugs, monotype, and cuts with wooden bases are used slight inequalities in the make-up of pages are always apparent. To overcome any lack of stability or uniformity caused by materials of this character labor-saving wood furniture is suggested, chiefly because it is not entirely inflexible and because it lends itself more readily to these slight irregularities. Iron and steel furniture supplies the best locking material for forms that are to be sent to the foundry for electrotyping and stereotyping. This furniture is all made on the point system, in regular labor-saving sises; is micro ground and therefore al>8olutely accurate. It cannot be dented or bruisod and will not expand with heat and afterwards cimtract out of shape. It also possesses the advantage of iH'ing much lighter than most other metal furniture. Where close register is required, as in color work, this furniture is especialVv \*Hluable on account of its great accuracy and rigidity.

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