Traversing hoists – Having means facilitating assembly or disassembly – Of traversing hoist from support
Patent
1981-05-04
1986-07-22
Blix, Trygve M.
Traversing hoists
Having means facilitating assembly or disassembly
Of traversing hoist from support
212178, 212227, 212248, B66C 2378
Patent
active
046014020
ABSTRACT:
Front and rear pairs of crawler assemblies are provided for supporting concentric ring segments disposed forwardly under the boom and rearwardly under the counterweight so the crane can travel under load and swing through at least a partial horizontal arc. One and preferably both crawler assemblies are selectively and reversely powered to facilitate forward and reverse as well as turning movement during travel under loaded and unloaded conditions. The inner ring segment is at least partially surrounded by a rotatable cage structure which provides a connection point for a frame element extending to the forwardly disposed crawler assembly to permit independent steering of the rear crawler assembly.
REFERENCES:
patent: 1610502 (1926-12-01), Fairbanks et al.
patent: 2068397 (1937-01-01), Chapman
patent: 2139960 (1938-12-01), Kauffman
patent: 2949162 (1966-08-01), Davis
patent: 3836010 (1974-09-01), Lampson
patent: 3868022 (1975-02-01), Greenlay et al.
patent: 3900077 (1975-08-01), Gee et al.
patent: 4020952 (1977-05-01), Scodino
patent: 4042115 (1977-08-01), Beduhn et al.
patent: 4076128 (1978-02-01), Tax
patent: 4196816 (1980-04-01), Dvorsky et al.
patent: 4243148 (1981-06-01), Lampson
Helm Percy R.
Morrow, Sr. James G.
Blix Trygve M.
Johnson R.
The Manitowoc Company Inc.
LandOfFree
Steerable concentric ring segment supported lift crane does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Steerable concentric ring segment supported lift crane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Steerable concentric ring segment supported lift crane will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-861204