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).
Letter from Joseph Lucas Ltd. discussing a drawing of Delco Remy generator connections and voltage regulator arrangements.
| Identifier | ExFiles\Box 166\2\ img032 | |
| Date | 6th April 1936 | |
| HEAD OFFICES & WORKS: GREAT KING ST.{Capt. P. R. Strong}, BIRMINGHAM. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, INDIA OFFICE, G.P.O. AND LEADING RAILWAYS. [Handwritten]: /6092 "KING OF THE ROAD" LAMPS, HORNS, "CYCLEALITIES", MOTOR-"CYCLEALITIES", "MOTORALITIES", MAGNETOS, BATTERIES, ELECTRIC LIGHTING & STARTING SYSTEMS. Codes: A.B.C. 5TH & 6TH EDITs & BENTLEYS 1ST & 2ND JOSEPH LUCAS LIMITED SERVICE DEPÔTS BELFAST 3/5, CALVIN STREET, OFF YORK STREET. BIRMINGHAM, 18 GREAT HAMPTON STREET. BRIGHTON, 4 59, OLD SHOREHAM RD., HOVE. BRISTOL 145, BATH ROAD. CARDIFF 54A, PENARTH ROAD. COVENTRY PRIORY STREET. DUBLIN PORTLAND STREET NORTH, NORTH CIRCULAR ROAD. EDINBURGH, 11 60, STEVENSON RD, GORGIE. GLASGOW 227/229, ST.{Capt. P. R. Strong} GEORGE'S ROAD. LEEDS 64, ROSEVILLE ROAD. GREAT KING STREET BIRMINGHAM 19 TELEPHONE: NORTHERN 5201 (12 LINES) TELEGRAMS & CABLES: "LUCAS, BIRMINGHAM" SERVICE DEPÔTS LIVERPOOL, 13 460/466, EDGE LANE. LONDON DORDRECHT ROAD, ACTON VALE, W.3 LONDON 757/759, HIGH ROAD, LEYTON, E.10 LONDON 319, REGENT ST.{Capt. P. R. Strong}, W.1 (SHOWROOMS & OFFICES) LONDON 155, MERTON ROAD, WANDSWORTH, S.W.18 MANCHESTER, 3 291/293, DEANSGATE. (SUPPLY DEPOT) MANCHESTER TALBOT RD, STRETFORD. NEWCASTLE-ON-TYNE, 2 64/66, ST.{Capt. P. R. Strong} MARY'S PLACE. H.E. West, Esq., Messrs. Rolls-Royce Ltd., DERBY. [Handwritten]: Voltage regulator WHEN REPLYING PLEASE REFER TO EAW/VP. 6. 4. 36. Dear Mr. West, In reply to your letter of the 3rd, I am enclosing a drawing showing the various connections used by Delco Remy on generators of different types. The one you are interested in is, I think, that shown on the bottom right hand corner of the drawing. You will see that the voltage regulator has two coils, one a plain shunt winding and the other a bucking coil while the current regulator has a pair of current coils only and no bucking coil. The arrangement of the bucking coil on the voltage regulator is somewhat different from that normally employed in this country and in Germany, the bucking coil being in series with the contacts. We ourselves do not think that this is a very desirable arrangement owing to the fact that this inductance is suddenly thrown into the circuit when the points separate and is liable to lead to sparking at the contacts. Yours faithfully, A.Watson [Signature] mp [Initials] [Stamp]: ENCLOSURE | ||