From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Instructions from Fansteel Products Company U.S.A. for the fitting of Tungsten Contacts.
| Identifier | ExFiles\Box 35\5\ scan 167 | |
| Date | 1st November 1929 | |
| COPY OF INSTRUCTIONS RECEIVED FROM THE FANSTEEL PRODUCTS COMPANY U.S.A. FOR THE FITTING OF TUNGSTEN CONTACTS. The head of the point must be laid on a perfectly smooth surface preferably on a polished steel block. The shank may then be riveted by any of the following methods without danger of breaking the head of the point. 1. With an automatic centre punch. 2. By spinning. 3. With a tool with a chisel edge put into the spindle of a drill press and the riveting done by pressure. It is best to make two marks at right angles to each other, if this method is used. R.R. 293A (300) T.H.S.H. 150. 11-29. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 28/80 | ||