Advance Adjustable Pulley

The Advance adjustable pulley consisted of three basic elements. The main hub which included the fixed half of the pulley, had the second half of the pulley fitting to it with the aid of a key. It was then possible to slide the pulley half in and out to adjust the ratio. The third component was a locking ring which was threaded to the hub. This was set to the desired position then the locking pin on the moving half of the pulley was locking into it.


An 'Advance Adujstable Pulley' Advert.

An original 'Advance Adujstable Pulley'.

An original 'Advance Adujstable Pulley'.