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.
The same type of device with its on-off pull chain is still in use today.
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.
Its product offering includes rotary, toggle, pull chain, rocker, slide and push button switches for both original equipment and aftermarket applications.
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.