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 'Le Carbone' discussing the suitability of their 'Z' and 'EG30' carbon grades and offering a sample for testing.
| Identifier | ExFiles\Box 50\5\ Scan096 | |
| Date | 15th July 1922 | |
| X4333 CONTRACTORS to the ADMIRALTY, POST OFFICE, WAR OFFICE, &c. LE CARBONE COVENTRY HOUSE, SOUTH PLACE, LONDON, E.C.2, ENGLAND. [Box 1] CARBONS -FOR- MICROPHONES, WELDING, SMELTING, & ELECTRO-DEPOSITION, RESISTANCES, -&c., &c.,- ELECTRO- -GRAPHITIC CARBON. (GIRARD & STREETS PROCESS) CARBON SACK BATTERIES, LACOMBE CEDS. [Box 2] BRUSHES CARBON, METAL, COMBINED METAL AND CARBON FOR ALL TYPES DYNAMOS -&- MOTORS. CARBON PACKING RINGS -FOR- TURBINE ENGINES, MAGNETO CARBONS. A.B.C. CODE 4th & 5th EDITION. TELEPHONE - CLERKENWELL 1826. TELEGRAMS - "LACOMBE, AVE, LONDON." SUPPLIERS TO THE PRINCIPAL RAILWAYS, TRAMWAYS, CORPORATIONS & ELECTRIC LIGHT & POWER UNDERTAKINGS THROUGHOUT THE WORLD. 15/7/22. [Stamp: RECEIVED JUL 17 1922 FC] Messrs. Rolls-Royce Ltd., Nightingale Road, Derby. Dear Sirs, Your Ref.- EF01/T. In further reply to your favour of the 10th inst. we beg to say that our Works people have had pleasure in considering the data on the form returned to us, and they agree that the "Z" grade should be satisfactory on this machine. They venture to add, however, that their "EG30" quality might also be tried, owing to the very considerable use of this quality on somewhat similar machines elsewhere. If you are willing to accept and test samples of the "EG30" grade, we are happy to offer you some free of charge, and it would give us great pleasure to have the opportunity of sending them. A small piece is enclosed for your inspection, but naturally a trial is the only way of making certain of the suitability or otherwise. We shall be pleased to hear from you again, and are, Yours faithfully, FOR LE CARBONE [Signature] Enc. "EG30". PL.137. R {Sir Henry Royce} /P. | ||