Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 94
age 37.00 With mountings for window Same with revolv-ing carriage BLUE PRINT MACHINES Continuous Blue Print Machine. Operated by single arc lampusing 15 amperes at 110 volts, or iy2 amperes at 220 volts, trav-eling up and down continuously in the center of a half cylinderof glass, while the paper… … Fig. 31. ContinuousBlueprint Machine. Another vertical machine of similar type uses lamps for director alternating current of 110 ^or 220 volts. It requires a floorspace of 36x42. Catalogue Two Print Surfaces, Size Inches Price 1 42x36 $210.00 2 42x48 230.00 3 42x60 245.00 4 42x72 300.00 90…
Contractors' operations · Building
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