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 regarding the failure of an FS22-N Dimmer Switch during endurance testing and the plan for improved replacements.
| Identifier | ExFiles\Box 165\1\ img061 | |
| Date | 13th May 1937 | |
| 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. 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 EDITn & BENTLEY'S 1st & 2nd SERVICE DEPÔTS BELFAST 3/5, CALVIN STREET, MOUNT POTTINGER BIRMINGHAM, 18 GREAT HAMPTON STREET BRIGHTON, 4 88, OLD SHOREHAM RD., HOVE. BRISTOL 345, BATH ROAD. CARDIFF 54A, PENARTH ROAD. COVENTRY PRIORY STREET DUBLIN PORTLAND STREET, NORTH NORTH CIRCULAR ROAD EDINBURGH, 11 80, STEVENSON RD, GORGIE. GLASGOW 223/229, ST GEORGE'S ROAD. LEEDS 64, ROSEVILLE ROAD. LIVERPOOL, 13 450/456, 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. LONDON 155, MERTON ROAD, WANDSWORTH, S.W.18. MANCHESTER, 3 291/293, DEANSGATE MANCHESTER TALBOT RD, STRETFORD. NEWCASTLE-ON-TYNE, 2 64/66, ST MARY'S PLACE. WHEN REPLYING PLEASE REFER TO X/LGT/10. Messrs. Rolls-Royce, Limited, DERBY. FOR THE ATTENTION OF MR. WEST. 13th. May, 1937. Dear Sirs, In connection with the FS{F. Steele}22-N Dimmer Switches which you have been testing, and further to your letter of the 5th. instant, reference Rm{William Robotham - Chief Engineer}/Wst.6/AP in which you state that one of the samples has failed on Endurance after 25,000 operations, and request some improvement in the contacts; we would inform you that this matter is receiving our serious consideration and every effort is being made to bring through three more switches with the contacts modified and made, we hope, in such a manner that will give a longer service. We shall not be able to bring these through before the Whitsun holidays as of course the spring makers have to make the necessary Jigs, to bring through the modified contacts, but please be assured we shall not loose any time on the job. Yours faithfully, JOSEPH LUCAS LIMITED. Technical Sales Department. | ||