Jlg Industries, Inc.

Other

Alexander McKechran Hardie McNeil

Geoffrey George Campbell

Hugh Lithgow Stark

Frank Fornasari

Adrian Roger Poulton

A lift system is coupled between a work platform and a mast on a mast lift. The lift system includes at least one lifting rope connected between the work platform and the mast via an idler roller and a hoist drum connected to the work platform. The idler roller is displaceable between an engaged position and a disengaged position based on an amount of tension on the lifting rope. A spring is connected to the idler roller and urges the idler roller toward the engaged position. A carriage latch assembly includes a carriage latch hook coupled with the idler roller and a pin secured to the mast. When the idler roller is disposed in the engaged position, the carriage latch hook is engageable with the pin.

Mast lift and mast lift system

A load equalizing rope termination serves to prevent a load imbalance between a pair of rope leads of a rope termination. The rope termination includes an end section such as an end loop and the pair of rope leads attached to a pair of rope ends. A rope termination fitting includes a base support member over which the end section is supported, and a pair of load equalizing support members disposed upstream of the base support member and over which the rope ends are supported. The engagement between the rope ends and the equalizing support members prevents a load imbalance of the rope leads.

Load equalizing rope termination and method

A method of activating a drive system with a portable power source includes performing at least two actions between the power source and the drive system to effect activation. Performing any one of the two actions without the other of the two actions will not activate the drive system. The power source is preferably a hand-held power drill or a power pack.

Slip clutch with two-action drive system activation

Free standing mast lift

A connection device for fitting to a member, particularly to a corrugated flexible pipe () formed with a series of spaced annular grooves, the device comprising first and second tubular bodies () coupled together, in use, with the pipe received in an open end of the first body (). The first body has a plurality of resilient lugs () with respective inwardly directed projections () at the ends thereof to be received in one of the said grooves to grip the pipe. The two bodies can be relatively angularly moved between a neutral position of the device, where the pipe is retained by the resilience alone of the lugs, an unlocked position, where the lugs are released from the pipe, and a locked position, where the lugs are forced into locking engagement with the pipe, movement of the lugs being controlled by cam formations () extending from the end surface of the second body (). In other embodiments the bodies can have a rotation lock in said locked position and/or neutral position, and/or a lock to prevent outward movement of the lugs when the bodies are in the locked position.

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Gladesville, Australia

Alexander McKechran Hardie McNeil