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 809
Full Circle Derrick, mounted on concrete base.Capacity up to 4 yd. bucket. … Hinged Boom Tower Cranes Up to 50 Tons Capacity-Stiff Leg Derricks Up to 150 Tons Capacity.
Hoisting machinery · Conveying machinery
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
