of 64 Port Street, Manchester
- 1812 Company founded.
- 1920 January. Issued booklet on 'Hydra' tool steels
- 1924 Private company.
- 1937 Steel manufacturers. "Hydra" High Speed Steels. "Hydrex" Stainless Steels. "Vampire" Alloy Steels. "Vital" Alloy Steels.
- 1939 See Aircraft Industry Suppliers
- 1961 Steel tool and wire manufacturers and steel stock holders.