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).
Design and construction of a standardized electrical terminal for cars.
| Identifier | ExFiles\Box 181\M11\ img111 | |
| Date | 10th April 1918 | |
| To BY, DA{Bernard Day - Chassis Design}, & EH.. from R.{Sir Henry Royce} -12- R7/G181218 Contd. must at first be standardised throughout the car. Various types of terminals were discussed, in which the cleaned end of the conductor was gripped between sheet metal ferrules. It was finally decided to experiment with a type of terminal pressed from sheet metal, in which wings were incorporated on the sheet metal ferrules for gripping the insulation of the wire. The metal piece is stamped complete from one sheet of metal, and is folded over to make the terminal - see sketch - VIEW OF UNFOLDED TERMINAL TO LARGE SCALE THE HALVES OF TERMINAL GRIPPING THE INSULATION CAN BE CONSOLIDATED BY PUSHING A CIRCULAR FERRULE OVER THEM. TERMINAL FINISHED EXCEPT FOR BINDING THERE ARE MANY VARIATIONS OF THIS PRINCIPLE OF CONSTRUCTION THE TERMINAL CAN BE ASSEMBLED WITH SPECIAL TOOLS. The metal portion of the terminal gripping the insulation is afterwards to be covered with sticky tape, and perhaps bound with twine, which should finally be shellac varnished. It was also considered quite good for the purpose of making a terminal, to form a loop with the cleaned end of the conductor and to bind the end of the insulation with fine twine, which is afterwards shellac varnished. On a production basis, each car would be supplied with a suit of conductors made to gauge lengths and fitted with terminals. RECEIVED 10 IV 1918 D R.{Sir Henry Royce} | ||