A lift assembly for cooperatively engaging spaced locations of an overhead structure, comprises: a backbone (420); a coupler connected to the backbone to selectively engage the overhead structure; a drum (160) rotatably mounted to the backbone; a motor (100) connected to the drum for rotating the drum; a first head block (80) connected to the backbone; and a first loft block (220) connected to the backbone.
Lift assembly
Aufzugsanordnung
Ensemble de levage
2015-07-22
Patent
Electronic Resource
English
IPC: | B66D Haspeln , CAPSTANS / A63J DEVICES FOR THEATRES, CIRCUSES, OR THE LIKE , Einrichtungen für Theater, Zirkusse oder dgl. / B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last |