Abstract: A telescoping workover rig is characterized by a derrick having a bottom mast section mounted on a base or carrier and a top mast section telescopically fitted in the bottom mast section. In functional configuration a system of tram sheaves mounted on movable trams and connected to opposite fixed stationary sheaves by a continuous cable, serve to raise and lower a travelling block suspended by the cable from travelling block sheaves and crown sheaves in the extended top mast section. The trams that mount the tram sheaves are fitted to the ends of one or a pair of cylinder rods extending from a corresponding tram drive cylinder or cylinders.

Abstract: A telescoping workover rig is characterized by a derrick having a bottom mast section mounted on a base or carrier and a top mast section telescopically fitted in the bottom mast section. In functional configuration a system of tram sheaves mounted on movable trams and connected to opposite fixed stationary sheaves by a continuous cable, serve to raise and lower a travelling block suspended by the cable from travelling block sheaves and crown sheaves in the extended top mast section. The trams that mount the tram sheaves are fitted to the ends of one or a pair of cylinder rods extending from a corresponding tram drive cylinder or cylinders.