Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 355
r cutaway harrow of steel, regulated from thedrivers seat, costs as follows: Two horse, with twelve 12 to 16-inch discs, 6 feet wide. ... $20.00Whiffle trees and neck yoke 1.50 A tooth harrow, original cost $25.00, averaged for repairs for3 months, $1.30 per month. Cultivators, which cost $12.00… … Fig. 160. A Portable Gravel and Sand Heater. gravel or stone drops from one shelf to another and is heated bya fire built beneath. It will dry gravel or stone up to 2 in. insize, but cannot be used for drying sand. Capacity Weight No. Cost Tons per Hour Lbs. Delivered 1 $250 6 1,600 At once 2 225 5…
Contractors' operations · Building
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