Canadian mining journal July-December 1915 . Whats the Life of aRenold Chain Drive? is one of the first questions a prospective cus-tomer asks. While no one can positivelystate what the Life of any drive - Chain — Belt—Rope or Gear—w ill be under specified con-ditions, this photograph, however, shows a Renold Patent SilentChain Drive which has been transmitting, between two shafts 85 h. p. continuously for over15 years. The centre distance is 37 in., and the main-tained efficiency per cent. Note the chain is running quite slack meansminimum journal friction. WE STOCK CHAINS AND Catalogue
Canadian mining journal July-December 1915 . Whats the Life of aRenold Chain Drive? is one of the first questions a prospective cus-tomer asks. While no one can positivelystate what the Life of any drive - Chain — Belt—Rope or Gear—w ill be under specified con-ditions, this photograph, however, shows a Renold Patent SilentChain Drive which has been transmitting, between two shafts 85 h. p. continuously for over15 years. The centre distance is 37 in., and the main-tained efficiency per cent. Note the chain is running quite slack meansminimum journal friction. WE STOCK CHAINS AND Catalogue free qn request PARTS JONES & GLASSCO, Branch Office, TORONTO Sole Canadian Agents (Regd) Engineers 49 Place DYouville, MONTREAL Solves the Haulage Problem for Narrow Gauge Tracks I A JEFFREY STORAGE BATTERY LOCOMOTIVE • » KfTeets big savings in Tram- ming Ousts at the mines of thePortland Cold Mining Co. s Their order for two duplicate * units is the Locomotive, operates over lS-ineh gauge track adistance of MOO feet. On each charge of battery itinakeH 24 round trips, handling a train of 10 carson each trip. Has hen in continuous daily servicesince last October, working ^ shifts of S hours each. Toe Jeffrey Storage Battery Locomotive is Simpleto Operate, I/>\v in Cost of Maintenance, Insures a(ireater Measure of Safety, and will go anywherethat track is laid. Saves the expense of trolleywires, rail honds and feeders. Bulletin No. 107-1 illustrates and describes numerolts installations in Metal Mines. IIyou are interested in a cost-reducing and lahor-savinx method of haulage, send for copy. JEFFREY MANUFACTURING CO., Canadian Branch and Warerooms, MONTREAL When An*ii t;rintf Advrrtuirmi i<t* ;-i ? <n, ntxnn I ns Canadian Minimi .Ioi THE CANADIAN MINING JOURNAL
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectminesandmineralresou
