Handbook of construction plant, its cost and efficiency (1914)
Dana, Richard Turner, 1876-1928 · Chicago, The M. C. Clark Publishing Co. · leaf 271
re described. The character of current recommended is the same as for theelectric air drill. 266 HANDBOOK OF CONSTRUCTION PLANT Equipment. One complete Electric-Air Channeler outfit includes the fol-lowing: One Electric-Air Swing Back, Swivel Head Track Channelermounted on a rigid cast iron truck… … Fig. 90. Track Channelers in Operation in the Quarries atBedford, Indiana. In addition to the above the following accessories are pro-vided: 30 feet of flexible protected cable with connections; onedrag pole; three 12-foot sections of track and one 6-foot sec-tion; one set of lifting bales; one…
Contractors' operations · Building
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