File:E-MJ - engineering and mining journal (1915) (14577688250).jpg

Identifier: emjengineeringmi99newy (find matches)
Title: E/MJ : engineering and mining journal
Year: 1915 (1910s)
Authors:
Subjects: Mineral industries Engineering
Publisher: New York : McGraw-Hill
Contributing Library: Engineering - University of Toronto
Digitizing Sponsor: University of Toronto

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suction nozzle (on the principle of the vac-uum cleaner) and convened by pipe into an air-tight set-tling chamber through which air is passing to an exhaustfan. This handling of the ore provides also for the re-moval of its heat. Roasting action is said to terminateinstantly as the ore enters the nozzle. 1 feature claimed for ibis new typ of furnace is the fad thai there is no chance for the agglomeration of theere grains so that no subsequent rolling or grinding is re-quired before the ore is passed to the magnetic separators.Another point for which strong claim is made is thatmuch less power is needed to drive this machine than isconsumed by those machines that carry a heavier chargeof ore and depend upon mechanical rabbling. The .Mine& Smelter Supply Co. has complete plans prepared forand is ready to supply this type of machine in a 30-ft.diameter size, calculated to roast 30 to 40 tons of oreper 24 hours, as well as in the smaller experimental sizespoken of above. to Mnimninid
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A Safe Crank Trolley The crane trolley, made in capacities from two to 125tons, is manufactured by the Northern Engineering Works,of Detroit, Mich., for use in mills. It is completely en-closed, giving safety to the operator and freedom from dustto the motor, hut still has its pans easily accessible. Allis-Chalmeks Tractor Truck This machine, built by the Allis-Chalmers Mfg. Co. forwork in rough country, can be used as a truck of five tonscapacity, or as a tractor with a drawbar pull of 9000 lb. onthe first speed. 2370 on the second. The illustration says allthat is necessary as to its cross-country capabilities.

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