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 L. Weekes (Luton) Limited enquiring about the specifications for fuses requested for testing.
| Identifier | ExFiles\Box 166\7\ img029 | |
| Date | 4th December 1934 | |
| CONTRACTORS TO H.M. ADMIRALTY, INDIA OFFICE, WAR OFFICE, G.P.O., AIR MINISTRY AND COLONIAL GOVERNMENTS Telephone LUTON 278 Telegrams SAFETEE-LUTON Codes A.B.C. 5th & 6th Editions [Logo: SAFETEE REGD. TRADE MARK] [Handwritten: r6071.] London Office 109. KINGSWAY. W.C.2 Telephone HOLBORN 1091 Telegrams DRYOSBO, WESTCENT LONDON [Logo: REGISTERED TRADE MARK] [Logo: NATIONAL SCHEME FOR DISABLED MEN] L. Weekes (Luton) Limited Incorporating L. Weekes. Ltd: The British Electric Calibrated Fuse Co: The Safetee Controlling Appliances Ltd. Established 1905. MANUFACTURERS OF IRONCLAD SWITCHES - ENCLOSED INDICATING FUSES SWITCHBOARDS - PYROTIN FUSE WIRE Directors: C.H. DRYDEN, Governing. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} DRYDEN. M.{Mr Moon / Mr Moore} MARTIN C.J. WILKINSON. H.V. SMITH. I. SACY & Secy YOUR REF. OUR REF. WF/SB.{Mr Bull/Mr Bannister} LUTON, BEDS. 4th December 1934. Messrs. Rolls-Royce Ltd. D E R B Y. [Handwritten: WST] Dear Sirs, Attention - Mr. H.{Arthur M. Hanbury - Head Complaints} E.{Mr Elliott - Chief Engineer} West. We have been advised by our Mr. C.H.Dryden, that you wish us to submit for test, half-dozen Fuses of two types, namely Type 45 and alternatively a Fuse Link, to blow at 90 amps. at 12 volts, the available space being 2" x 1/2" x 1/2". On the face of it, a type 45 Fuse does not seem a practicable proposition, owing to the shape and size of the lugs, which leave a very short distance indeed between the fuse caps. It would be of assistance if you could let us have additional information, as follows:- 1. What would be the normal current the Fuses would have to carry ? 2. Are the Fuses to be fixed to existing terminals ? If so, what size are they and how far apart are their fixing centres ? (1) | ||