Traversing hoists – Having means facilitating assembly or disassembly – Of traversing hoist from support
Patent
1991-05-30
1993-05-18
Peters, Jr., Joseph F.
Traversing hoists
Having means facilitating assembly or disassembly
Of traversing hoist from support
212187, 212231, 212240, 212264, B66C 2326
Patent
active
052112977
ABSTRACT:
There is disclosed a mobile crane having at least one hollow load bearing support member which is rotatable about a base. The load bearing support member is pivotally connected to a hollow boom which telescopically receives a plurality of secondary hollow and interengageable booms. The load bearing support member and boom are pivotally connected by an inwardly collapsible support. The crane cable is connected to a drive source and extends within the hollow booms and load bearing support member and is releasably retained by at least one boom. The crane may be automatically unfolded from a storage position when the boom is substantially parallel to the mast, to an operational position when the boom is angularly inclined to the load bearing support member.
REFERENCES:
patent: 323352 (1885-07-01), Meltzer
patent: 1558636 (1925-10-01), Rutan
patent: 1897383 (1933-02-01), Burgayne
patent: 2410777 (1946-11-01), English et al.
patent: 2487305 (1949-11-01), Bridegroom
patent: 2701649 (1955-02-01), Hellstrom
patent: 2828867 (1958-04-01), Frisk
patent: 3048371 (1962-08-01), Klimek, Jr.
patent: 3638866 (1972-02-01), Hippach
patent: 4049238 (1977-09-01), Brown
patent: 4241837 (1980-12-01), Suverkrop
patent: 4267934 (1981-05-01), Vernay
patent: 4419038 (1983-12-01), Pendergraft
patent: 4427120 (1984-01-01), Schoeffler
patent: 4508233 (1985-04-01), Helms
patent: 4540096 (1985-09-01), Orvis
patent: 4623067 (1986-11-01), Hejlik
patent: 4653654 (1987-03-01), McDaniel
patent: 4700851 (1987-10-01), Reeve
Johnson R. B.
Peters Jr. Joseph F.
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