Printing; a practical treatise on the art of typography as applied more particularly to the printing of books; (1890)
Jacobi, Charles Thomas, 1853-1933 · London : G. Bell and sons · leaf 203
t. One pound of potash to four quarts ofwater is another recipe. To hold the lye, troughs are usedand replenished from jars in which it is stored. We giveillustrations of a portable lye-jar, fig. 115, and a trough,fig. 116, in which formes may be placed and washed, beingtaken out for rinsing with… … Firj. 116. had sufficient time to dry. To prevent this it is necessary tochange occasionally the thin set-off sheets pasted by thefour corners on the tympan. Oiled sheets are sometimesused for this purpose; home-made ones maybe manufac-tured by washing them over with turpentine—this obviatesthe…
Printing
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