Printing; a textbook for printers' apprentices, continuation classes, and for general use in schools (1917)
Henry, Frank Souder, 1867- · New York, John Wiley & sons, inc.; [etc., etc.] · leaf 179
ormput together in this manner is very apt to work loose and pullout on press. When locked up in the proper way, as shown inFig. 94, both job and furniture are being locked up at the sametime and there is no likelihood whatever of the job workingloose or pulling out. 163 164 PRINTING Fig. 96 shows… … Fig. 94.—Proper Way to Lock up a Form. 142. Quoins.—Wedge-shaped devices, known as quoins,are used for locking up forms. For many years wooden quoins
Printing
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