The W C Toles Vise

… it turns out that Steel Nut & J. Hampton ltd (aka Woden) filed a patent in 1906 that aimed to resolve potential issues with the cast sliders first used by Parkinson (they suggested adding rollers to reduce wear and friction). I doubt it ever got made, though, since US manufactures had already come up … Read more

Sheffield Crucible steel, end of an era

Crucible steel was still in demand well into the twentieth century, despite competition from the steel created by the spectacularly successful (and much cheaper) large-scale production processes introduced by Bessemer and Siemens. This account from 1905 describes a processes essentially unchanged since its inception over 150 years earlier, and still reliant on Swedish bar iron … Read more