Abstract: A safety system for overhead hoisting cranes is provided which incorporates a overload release coupling in the high speed drive shaft between the prime mover and the gear reducers driving one or more hoist drums with a dual reeving and a safety brake acting on the high speed drive shaft at the gear reducers and controlled by an overrunning clutch and a control means.

Abstract: A novel weighing system for cable hoist sheave systems is provided which utilizes a plurality of shear type load cells arranged in a stable 3-point configuration which is capable of supporting side loadings without destroying the vertical reading. Uneven distribution of the material does not affect the stability of the system and an accurate weight of the load is determined.

Abstract: A mould handling, cleaning and preparation apparatus is provided having a bridge movable over a work area, a trolley running lengthwise of the bridge and carrying suspended therefrom a vertical guide frame with an inner telescoping lift column carry tongs at the lower end, a secondary guide frame with a vertically movable cleaning column and rotatable cleaning head is mounted on one side of the main guide frame and a spray head guide rail and vertically moving spray head are mounted on the opposite side of the guide frame.

Abstract: A novel weighing system for ladle handling apparatus. The system utilizes a plurality of fixed and movable load cells arranged in a stable 3-point configuration and a means for maintaining the load cells in accurate position between a sheave basket and ladle hanger to prevent misalignment and inaccuracy. Uneven distribution of the material does not affect the stability of the system and an accurate weight of the ladle is determined.

Abstract: A two drum or similar take-up crane hoist is provided having an intermediate sheave deck between the crane trolley and a lift beam and a combination of vertical and cross-over reeving over the sheave deck so as to support both ends of the lift beam from each of the take-up means separately.

Abstract: An apparatus for stripping a metal ingot from its casting mold is provided in which mechanical stripping motion is provided by a stripping screw rotatable within a vertically extending column housing which is in turn rotatable within a column frame and in which the stripping screw provides control of the ingot and mold gripping tongs and a bull nose for ejecting ingots from a mold.

Abstract: A gantry crane and gantry crane reeving are provided having two pairs of drums on each side of said gantry, an upper sheave assembly on the gantry above each drum, each drum having a pair of independent cables reeving from the drum to said upper sheave assembly above it on the gantry, a lower relatively movable sheave assembly below each upper sheave assembly, one cable from each pair of cables passing over one sheave of the upper sheave assembly and downward around the lower sheave assembly and back over the upper sheave assembly and dead ending at the lower sheave assembly, the other cable from each pair of cables passing over a sheave of the upper sheave assembly across the gantry to the opposite upper sheave assembly on the other side of said gantry and downwardly to the lower sheave assembly on said other side and back over the said opposite upper sheave assmbly and dead ending at the said opposite lower sheave assembly.This application is a division of my co-pending application Ser. No.

Abstract: A bridge truck assembly for cranes and the like is provided having at least two in-line wheels on a side engaging a trackway, a prime mover drivingly connected to one wheel and a pair of rotatable drive members engaging the circumference of both said in-line wheels on opposite sides of the center line between them and urged together into engagement with said wheels by resilient means.

Abstract: A gantry crane and gantry crane reeving are provided having two pairs of drums on each side of said gantry, an upper sheave assembly on the gantry above each drum, each drum having a pair of independent cables reeving from the drum to said upper sheave assembly above it on the gantry, a lower relatively movable sheave assembly below each upper sheave assembly, one cable from each pair of cables passing over one sheave of the upper sheave assembly and downward around the lower sheave assembly and back over the upper sheave assembly and dead ending at the lower sheave assembly, the other cable from each pair of cables passing over a sheave of the upper sheave assembly across the gantry to the opposite upper sheave assembly on the other side of said gantry and downwardly to the lower sheave assembly on said other side and back over the said opposite upper sheave assembly and dead ending at the said opposite lower sheave assembly.