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 Hepworth & Grandage Ltd discussing the testing of high tension cast-to-form rings.
| Identifier | ExFiles\Box 148\1\ scan0059 | |
| Date | 7th March 1939 | |
| MANUFACTURERS OF "HEPOLITE" REGD. PRODUCTS ON AIR MINISTRY APPROVED LIST . ADMIRALTY . WAR OFFICE . CROWN AGENTS HEPWORTH & GRANDAGE LTD PISTONS . PISTON RINGS . GUDGEON PINS . LINERS 78 YORK WAY KING'S CROSS LONDON, N.I TELEPHONE : TERMINUS 1418/9 TELEGRAMS : VACRIT, NORDO, LONDON HEAD OFFICE & WORKS: ST.{Capt. P. R. Strong} JOHN'S WORKS BRADFORD TELEGRAMS AND CABLES: RINGS, BRADFORD CODE: BENTLEY'S TELEPHONE: 11100 (8 LINES) YOUR REF. OUR REF. WAW/GMH. DATE Handwritten notes: 1256. Seiler Rolls Royce Ltd., Nightingale Road, D E R B Y., 7th Mar 1939 Dear Sirs, For the attention of Mr. Swindall - Chassis Experimental Engineer. ------------------------------- We have pleasure in confirming our appreciation of the interview which yourself and Mr. Robotham kindly granted to our Mr. C.H. Mallinson and the writer. Regarding the modus operandi to be adopted for testing the high tension cast-to-form rings, we would venture to suggest that truly comparable results would be obtained if the test engine was first run in its standard form, the necessary observations being taken of blow-by.{R.W. Bailey - Chief Engineer} The necessary rings are at present in hand and will be consigned to you shortly. As soon as these are in your possession, the writer proposes to again communicate with you, with a view to affording all possible co-operation on the forthcoming test. In the meantime perhaps you will care to consider the above-mentioned suggestion. Yours faithfully, p.p. HEPWORTH & GRANDAGE LTD. W.A. Wilson. Chief Technical Representative. Handwritten note: Mr JMR | ||