Apparatus for moving objects comprises a carriage for lifting and/or moving a load on one or more lines 60,62 comprising at least two sheaves 30, 40 that are, in an operative configuration, disposed for rotation about a respective axis between front and rear plates (10, 12, figure 5). There is a recess in one or both of the front and rear plates (10, 12) that extends from an edge of the plate to a region between the axes of two sheaves to form a void (14, figure 14) between the axes. Optionally, a void plate 20 can be releasably secured to one of the front or the rear plate to at least partially fill the void formed in the plate by the recess. The carriage has an open configuration in which at least one sheave is spaced from at least one of the front or rear plates. Transition between the open configuration and the operative configuration is achieved by mutual rotation of the front and rear plates (10, 12), for example about a rotation axis perpendicular to the plates that is coincident with the axis of rotation of one of the sheaves 30. In the apparatus, the carriage is carried, in the operative configuration, on a main line 60, whereby the carriage can travel on the main line supported by one or more sheave 30, 40.
System and apparatus for moving objects
2017-05-03
Patent
Elektronische Ressource
Englisch