File:E-MJ - engineering and mining journal (1920) (14762195301).jpg

Identifier: emjengineeringmi110newy (find matches)
Title: E/MJ : engineering and mining journal
Year: 1920 (1920s)
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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olv-ing shovel, or, with the addition of afew extra parts, as a dragline exca-vator, a clamshell excavator, a locomo-tive crane, a sewer shovel, or with along boom and dipper sticks for workrequiring unusually high lifts. It is sodesigned that these changes may bemade with the minimum of labor, delay,and expense by those who have pro-vided the necessary parts in advance. As Clamshell ExcavatorThe hand machine will carry a 1-yardclamshell bucket with a 3.5-ft. boom ora 3-yd. clamshell bucket with a 40-ft.boom. All the change required in thisinstallation is an additional drum onthe main hoist shaft, with the necessarybrake, clutch, thrust cylinder, and oper-ating levers, additional ropes, boom,bucket, tag line, and trolley. Thechanges are simply and readily made. As Crane As a crane this shovel has a capacityof 9S tons at 20 ft. when mounted oncaterpillars, and 9 tons at the sameradius when mounted on trucks or trac-tion wheels. To make this change, thesame parts are required as for the
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BUCYRUS 30-B AS A DRAGLINE EXCAVATOR AND AS A CRA.NE engineer to the Eastern Potash Corpor-ation, New Brunswick, N. J., and there-fore has time available for other en-gagements in like capacity, (phonsChelsea 9992). T. Nelson Dale, geologist, recentlywith the U. S. Geological Survey, an-nounces that on Aug. 21 last he tookup the work of a consulting geologist,in inoblenis pertaining to slate, granite,marble, lime-rocks, and drilling forwater. Mr. Dale is the author of manyauthoritative papers on ornamentaland building stones of the easternUnited States. His address is TheOaks, Springfield, Mass. Yale & Towne Manufacturing Co.,Stamford, Conn., has moved its generaloffices to Stamford, Conn., to which allmail should be addressed. As A Revolving Shovel As a revolving shovel it carries a 1-yard dipper ti-uck measure. Whenheaped up, this capacity is about IJcu.yd. Its truck frame is so designedthat it will accommodate caterpillartraction, traction wheels or railroadtrucks of any gage f

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