References in periodicals archive ?
They work like hand chain hoists, but use a lever rather than a pull chain to rotate the sprocket that activates the lifting mechanism.
A hand chain hoist has two chains: a lift chain that is attached to the load and a pull chain.
I tapped its pull chain and our "stain" swayed back and forth.
Regardless of the existing switch type, you can choose a push-through switch, a pull chain, a turn knob or a three-way turn knob that provides two brightness levels.