Mobile crane

Details Mobile crane Mobile crane

B - Operations, Transporting

66

C

212/28

B66C 23/687 (2006.01) B66C 23/42 (2006.01) B66C 23/70 (2006.01)

Patent

CA 2036895

ABSTRACT OF THE DISCLOSURE 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.

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