Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 617
are for tampers with wooden handles.Paving Rammers. Net prices at Chicago for pavjng rammersare as follows: Kind Weight (Lbs.) Price, Each Granite rammer 56 $10.00 Cobblestone rammer 50 8.00 A Power Tamping- Machine, Fig. 292, consists of a two-wheeledtruck on the rear end of which is an air-cooled… … Fig. 292. Power Tamping Machine. man is necessary to operate the machine, and the manufacturerclaims that it will strike 60 blows per minute or 28,800 per eighthour day. On this basis and allowing 50 per cent for lost timeand wasted strokes, the head, the area of which is y2 sq. ft., will TAMPERS…
Contractors' operations · Building
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