Actuator for telescopic boom

Aerial boom with tensiometer

Angle-of-heel control means for a floating crane

Anti-sway crane reeving apparatus

Anti-sway crane reeving apparatus

Anti-sway crane reeving apparatus

Anti-sway load handling apparatus

Anti-sway reeving system

Anti-sway, anti-rotation mechanism for crane reeving

Anti-two block system

Apparatus and method for straightening crane rails

Apparatus for aligning trolleys

Apparatus for angularly displacing a load

Apparatus for controlling movement of valve override control han

Apparatus for controlling the number of revolutions of an engine

Apparatus for correcting skew of a traveling crane

Apparatus for extending a boom assembly

Apparatus for stabilizing the load of a crane or the like

Apparatus for suppressing quaky movements of mobile cranes

Arrangement for controlling the direction of movement of a load