Raising system for scaffolding and the like

Details Raising system for scaffolding and the like Raising system for scaffolding and the like

E - Fixed Constructions

04

G

E04G 1/20 (2006.01) E04G 3/28 (2006.01)

Patent

CA 2354674

A raising system for scaffolding, elevator cabins and the like which includes a vertical stationary beam member from one side of which equally vertically spaced similar rack teeth are protruding, each tooth having a substantially horizontal straight top face. The system has a framework guided for up and down movement along the beam member, a power driven shaft rotatably supported by the framework and carrying spaced radial supports, a series of parallel idle shafts extending between the supports, equally spaced from one another and radially equally spaced from the driven shaft, and a plurality of cylindrical roller assemblies rotatably mounted on the idle shafts and adapted to come in successive rolling engagement with the top faces of the teeth during upward or downward movement of the framework. Each roller assembly includes several rollers disposed side by side.

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