Operates machine to perforate $T3paper tape$T1 used to control casting type...
Operates machine to perforate $T3paper tape$T1 used to control casting type: Clips copy containing instructions to copyholder. Selects and installs bank of keys to make specified size and style of type. Sets and locks scale for indicating spacing of words in line, adjusts line-length indicator, and installs roll of paper strip, threading end of strip through machine. Admits compressed air to machine. Tears strip loose from supply roll, attaches type-casting instructions to reel, and forwards reel for casting type.