Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 200
WASHING AND DRYING l87 from zero to the maximum and he can also stop or start thecurtain while the motor is running. Rolls of blueprint paperand tracings are supported by a trough. The paper can becut to any size while the machine is feeding, if so desired, acutting edge being provided for that… … Fig. 3. Flat-glass Type of Electric Blueprinter desired part of a roll. The arc lamps, rheostats, and wiring arewithin the cabinet of the machine. Arc control switches regu-late the resistance of the rheostats, which regulate the sizeand intensity of the arcs. Paper for Electric Blueprinting. — The…
Mechanical drawing
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