Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 643
need norepairs for one year; then the repairs on No. 000 to No. 0 willcost from $1 to $2 per day; on the larger machines $2 to $5 perday. These machines are self-propelling both for digging andtraveling, no cables being used. Usually the tractions on thesemachines are of the wheel type, large in… … Fig. 300. View of Trenching Machine Excavating Sandy Clay atWest Salem, Wis. and can be changed instantaneously by the operator. In orderto change the width of the trench the scrapers must be removedand others of the proper dimensions substituted for them. Thesemachines are for lease also on a…
Contractors' operations · Building
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