Lift crane support system
AssigneeThe Manitowoc Company, Inc.
InventorsDaniel E. Beduhn, James G. Morrow, Sr.
Life of this patent
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Abstract
A lift crane in which the upper works is mounted on a platform that rides on a large diameter ring which is fixed to a generally square, planar and rigid frame. The frame is rigidly secured directly to the cross members which interconnect the crawlers of a crawler-transporter, with the securement being releasable by pin connections to permit the ring and its frame to be removed from the crawler-transporter and used as a fixed crane mounting pad.
Claims5
The combination comprising, a generally planar and square, rigid frame, a circular track-defining ring mounted on the upper surface of said frame, a transporter assembly including a pair of parallel crawlers interconnected by a body and a pair of rigid cross beams, each of said crawlers is trained to encircle a rigid longitudinal member, a plurality of connecting elements rigidly interconnecting said frame and said cross beams both inboard and outboard of said crawlers, and an upper works supporting platform mounted for rotation on said ring.
Dependencies are inferred from the claim text.