A sketch and description of the
interesting nut that makes the British flypress work the way it does, from
slightly foggy recollection.
This thing came to my shop on a stoneboat. It was originally in the old
marine shop in Port Medway, Nova Scotia and was the only thing too heavy
for two men to heft into their pickup when the old smith's granddaughter
hired them to haul the contents of the shop to the scrap yard.
Double screw vise
photo of a double screw vise. Note the square-link chain.
Anybody want to sell me one of these things? Or swap for somthing?
(Photo used with permission.)