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).
Blueprint showing the initial and latest electrical circuit arrangements for a Lucas Electrical Helix Starter Motor.
| Identifier | ExFiles\Box 165\7\ img021 | |
| Date | 28th December 1943 guessed | |
| LUCAS ELECTRICAL HELIX STARTER MOTOR ELECTRICAL CIRCUIT INITIAL ARRANGEMENT: BATTERY Push Button RELAY COIL: OPERATES BOTH SETS OF RELAY CONTACTS WHEN PUSH BUTTON IS PRESSED. SOLENOID WINDING MAIN CONTACTS: OPERATED BY SOLENOID PLUNGER NEAR END OF STROKE. RESISTANCE: LIMITS TEAZER CURRENT. TEAZER CONTACTS. SOLENOID WINDING CONTACTS. F.{Mr Friese} M IN THE ABOVE THE TEAZER CONTACTS CARRY 50 AMPS FOR A VERY SHORT TIME UNTIL THE MAIN CONTACTS ARE 'MADE' AND SHORT-CIRCUIT THEM. LATEST ARRANGEMENT: BATTERY Push Button RELAY COIL SOLENOID WINDING CONTACTS TEAZER CONTACTS. MAIN CONTACTS OPERATED AS ABOVE. RESISTANCE: LIMITS CURRENT THROUGH RELAY CONTACTS TO MAIN FIELD. TEAZER FIELD SOLENOID WINDING. MAIN FIELD M THE CURRENT CARRIED BY TEAZER CONTACTS REDUCED TO APPROX. 10 AMPS. | ||