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 S. Smith & Sons regarding test results for three returned calorstats.
| Identifier | ExFiles\Box 156\2\ scan0159 | |
| Date | 24th November 1938 | |
| 105 1328 CONTRACTORS TO ADMIRALTY, WAR OFFICE & AIR MINISTRY TELEPHONE: GLADSTONE 3333 (20 LINES) TELEGRAMS: SPEEDOFAC, PHONE, LONDON. CABLES: SPEEDOFAC, LONDON. CODES: MARCONI, COMMERCIAL, BENTLEY'S. S. Smith & Sons (Motor Accessories) Ltd CRICKLEWOOD WORKS LONDON. N.W.2 BRANCHES AT PARIS MILAN SYDNEY WELLINGTON AGENCIES AND SERVICE STATIONS THROUGHOUT THE BRITISH EMPIRE AND IN ALL THE PRINCIPAL COUNTRIES SHOWROOMS & DEPOTS 179-185 GT PORTLAND ST LONDON. W.1. 26-33, COX ST LIVERY ST BIRMINGHAM 14A, JACKSONS ROW DEANSGATE MANCHESTER 21, DRURY STREET GLASGOW DUBLIN & BELFAST Please quote our reference: E.6 FGE/MM. November 24th, 1938. Messrs. Rolls Royce Ltd., DERBY. Dear Sirs, for the attention of Mr.Steadman. With reference to the three calorstats E.80893 returned under your advice Note W. G/F 53905 and replacement Order No.R.18135, we have tested these and find the following. No.1. 7 1/2 lbs. weak at 90 degrees ... date March '37. No.2. 10 " strong " " not fully exhausted " October '36. No.3. Bellows fractured ... " January '37. It seems evident that the discrepancy in the first two is caused by differences in filling or degree of exhaustion, and for your information we are checking the degree of exhaustion of new products by vacuoscope and will shortly be introducing a filling which is not a compound and which will give much more equable results. With regard to No.3 it is possible that there was a weak place in the bellows which at last fractured as a result of vibration. Yours faithfully, for S. SMITH & SONS (MOTOR ACCESSORIES) LTD. F.{Mr Friese} S. Safford ENGINEER. To avoid delay all envelopes should be addressed to the firm. | ||