Macmillan Bloedel Limited

Canadian Boomstick Company Ltd.

Ralph Stanley Worsley

A system for coupling synthetic boomsticks having a pair of spaced parallel substantially horizontal coupling flanges projecting axially therefrom. The flanges form a loop receiving space therebetween and a coupling pin passes through this space between the flanges to lock a loop therein. The coupling pin is lockable in closed position to hold loop in place. A coupling pin and slot prevents rotation of the coupling pin except when the coupling pin is in retracted open position.

Synthetic boomstick coupling system

Cable machine control, particularly a grapple yarder is provided with an integrated control system whereby the operator is provided with controls each of which controls a desired operation or movement of the grapple. In particular the controls include a haul back and an in direction control, an up and down control and an opening and closing control some of which may be operated simultaneously with the speed of any operation or movement dependent on the maximum displacement of the control for any selected operation or movement.

Growing community of inventors

Nanoose Bay, Canada

Ralph Stanley Worsley