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).
The guarantee of accuracy for Telegauges supplied by Messrs. H.M. Hobson Ltd.
| Identifier | ExFiles\Box 44\4\ Scan025 | |
| Date | 27th March 1929 | |
| *380 x9038 To BY from ROY.{Sir Henry Royce} c. to Hs.{Lord Ernest Hives - Chair} ROY{Sir Henry Royce}7/MG27.3.29 ------------- Messrs. H.M.Hobson Ltd state they are prepared to give the following guarantee of accuracy for any Telegauges supplied for our manufactures: "The guarantee of accuracy is briefly set out in "prints K.S.325 D.{John DeLooze - Company Secretary}, and K.S. 326 D, as enclosed herewith. "Calibration of the various tanks would have to be agreed "and we have shown on K.S. 325 D a calibration of one of "your older types of tank. The guarantee is confined to ".750 gravity spirit as a compromise. The tolerance of the "facia baard angle to be plus or minus 5º for any facia "between zero and 12½º. We would suggest adopting a "standard angle of 7½º which would give satisfactory results "between 2½ and 12½ degress." Kindly confirm if in accord or otherwise. ROY.{Sir Henry Royce} [Signature] ENCLOSURES. to BY - Prints K.S.325.D K.S. 326.D | ||