Handbook of construction plant, its cost and efficiency (1918)
Dana, Richard Turner, 1876-1928 · New York, McGraw-Hill book company, inc., [etc., etc.] · leaf 616
re for tampers with wooden handles.Paving- Rammers. Net prices at Chicago for paving 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 % sq. ft., will TAMPERS…
Contractors' operations · Building
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