Material handling cyclopedia; a reference book covering definitions, descriptions, illustrations and methods of use of material handling machines employed in industry (1921)
Wright, Roydon Vincent, 1876- ed, Little, John G., joint ed, Augur, Robert C., joint ed · New York, N.Y., Simmons-Boardman Publishing Co · leaf 538
is sturdyin construction and turns in very close quarters—the steer-ing being by the front wheel only. A modification of this type is the tractor with a twinwheel in front. This arrangement consists of two wheelson a single short axle with springs, the whole being sus-pended in a bracket to steer… … a machine for outdoor service. A heavy stable machineis, of course, necessary to prevent mishaps on uneven road-ways, and where there are holes and ruts in the road. This tractor carries approximately 30 per cent to SOper cent larger batteries than the three-wheel type. This type may use either the…
Hoisting machinery · Conveying machinery
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