Bookbinding and its auxiliary branches . oseof the work day to permit them to set and harden overnight. STAMPING AND EMBOSSING 275 For this same purpose talking-machine records givesatisfactory results. Oil the plate or die, then glue a pieceof heavy cardboard to the bed of the machine, apply acoat of glue, and soften an old talking-machine record byheating; when soft, lay it on the glued cardboard, with athin piece of tissue paper on top, and make a firm impres-sion with the die or plate. When the composition hashardened, chip off the surplus. This matrix requires nopatching, and will last fo
Bookbinding and its auxiliary branches . oseof the work day to permit them to set and harden overnight. STAMPING AND EMBOSSING 275 For this same purpose talking-machine records givesatisfactory results. Oil the plate or die, then glue a pieceof heavy cardboard to the bed of the machine, apply acoat of glue, and soften an old talking-machine record byheating; when soft, lay it on the glued cardboard, with athin piece of tissue paper on top, and make a firm impres-sion with the die or plate. When the composition hashardened, chip off the surplus. This matrix requires nopatching, and will last for the longest runs. Another adhesive compound is made by mixing plas-ter of Paris in alum water to which glycerine has beenadded. The alum possesses hardening properties, whilethe glycerine keeps it moist to enable completion of thematrix before setting. The matrix of each job should bepreserved for future occasions, as reprints of editionsare frequent, and a saving of time is thus effected. ^ §1 irr^ ^l-LIBRARYQ^ AWf UNIVERVa. ^<!/0jnVDJO^ <rii30NVSO\^ .vvlO ? ^ (5 0 L_ ,^,OFCAllF0ff^ jAcOFCAilFOfiV I*?©! W v& Au I »J ^ J I J .?\WEUNIVER% ^filJONVSOl^^
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbookbinding, bookyear
