Letter from Joseph Lucas Limited regarding a solution for headlamp reflector springs.
| Identifier | ExFiles\Box 167\1\ img132 | |
| Date | 29th April 1937 | |
| HEAD OFFICES & WORKS: GREAT KING ST. {Capt. P. R. Strong} , BIRMINGHAM. CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY, INDIAProduction 20 HP. with 4-speed box and Front Wheel Brakes OFFICE, G.P.O. AND LEADING RAILWAYS JOSEPH LUCAS LIMITED GREAT KING STREET BIRMINGHAM 19 TELEPHONE: NORTHERN 5201 (12 LINES) TELEGRAMS & CABLES: "LUCAS, BIRMINGHAM" "KING OF THE ROAD" LAMPS, HORNS, "CYCLEALITIES" "MOTOR CYCLEALITIES." "MOTORALITIES" MAGNETOS, BATTERIES, ELECTRIC LIGHTING & STARTING SYSTEMS. Codes: A.B.C. 5th & 6th EDITns & BENTLEY'S 1st & 2nd SERVICE DEPOTS BELFAST ...... 3/5, CALVIN STREET. BIRMINGHAM, 15 .. SMALL HEATH GARAGE. BRIGHTON, 4 ... 95, OLD SHOREHAM RD., HOVE. BRISTOL ...... 345, 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 GEORGES ROAD. LEEDS ........ 64, ROSEVILLE ROAD. SERVICE DEPOTS 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 & Service) LONDON ....... 155, MERTON ROAD, WANDSWORTH, S.W.18. MANCHESTER, 3 .. 291/293, DEANSGATE. (Goods Entry) MANCHESTER ... TALBOT RD., STRETFORD. NEWCASTLE on TYNE, 2 64/66, ST MARY'S PLACE WHEN REPLYING PLEASE REFER TO RLN/DMW 29th April 1937 H. {Arthur M. Hanbury - Head Complaints} West, Esq., Messrs. Rolls Royce, Limited., DERBY. Dear Mr. West, In reply to your letter of April 15th advising us of the difficulty you are still experiencing with the stronger reflector springs on the new headlamps you will be glad to learn that we believe we have found a complete solution to the problem, which however does not lie in producing still stronger springs. Our efforts in this direction were unsatisfactory in so far that to keep the turning moment on the reflector within limits which could be satisfactorily dealt with by the dipper unit and still avoid "dithering" on the road, required very close tolerances on the reflector retaining springs which you will agree will be difficult to maintain in production and in service on account of the heavy weight of spring employed. We feel therefore that it will be very much better to use a separate spring to return the reflector to the normal position and to place the main spring anchorages on the axis of the reflector instead of offsetting them as at present. By so doing we can use any strength of Cont....... Handwritten notes: Top center: 6116 Right side: CAP, Please note & return, WJJ | ||
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).