Patent ID: 6131750
Filing Date: 2000-10-17
Classification: B66C

Abstract:
An apparatus for aligning and forming a structural connection between a boom extension on a crane boom including at least one strut terminating in a fly lug having a hole and a mating hole on said boom, comprising:an actuator located on said boom and extending toward the strut adjacent the fly lug for moving said fly lug;a tab projecting from said fly lug being aligned with said actuator, said tab adapted to be positioned for engagement by said actuator to provide the aligning movement;a pin for insertion through the holes;said tab is offset from the axis of said strut and said actuator comprises a jack screw for threaded engagement in an aperture on said boom, said jack screw having a head end for engagement with said tab and a handle at the other end;a swivel assembly attached to the head end of said jack screw for contacting said tab; andthe operative face of said tab extends at an acute angle outwardly normal to the axis of said fly lug,whereby upon alignment of the fly lug of the boom extension with the boom, easy and efficient pin insertion is made for forming the connection.