The wall mounted crane consists of a compression jib, and a tension tie which is adjustable, and both incorporate a linear, direct reading spring balance to measure the forces in them
Determination of forces in the crane members
Confirmation by theory and polygon of forces
Set of weights
Comprehensive technical manual
Set of slotted weights included
A load hanger applies loads through the junction of the two
Folds flat when not in use. Jib and ties re-adjustable to the original length.
