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 Crosby Valve & Engineering Co Ltd regarding a misunderstanding about the operating temperature of radiator thermostats.
| Identifier | ExFiles\Box 156\1\ scan0024 | |
| Date | 9th February 1933 | |
| TELEPHONE: MUSEUM 4343 & 4344. TELEGRAMS: "CROSBY LONDON" WORKS: ROTHERHAM. INSPECTION & TESTING DEPT. 14 & 15, UNION ST.{Capt. P. R. Strong}, LONDON, W.1. REGISTERED OFFICE: 147 QUEEN VICTORIA ST.{Capt. P. R. Strong}, LONDON E.C.4. RESIDENT ENGINEERS IN SCOTLAND, NORTH-EAST COAST, LANCASHIRE, MIDLANDS, SOUTH WALES, HOME COUNTIES ETC. Handwritten at top: XH508 SOLE AGENTS FOR CROSBY STEAM GAGE & VALVE CO. MASON REGULATOR CO. ROCKWOOD SPRINKLER CO. FULTON SYLPHON CO. BADGER METER MFG CO. CROSBY VALVE & ENGINEERING Co LTD HEAD OFFICE & WAREHOUSE: 41 & 42, FOLEY ST.{Capt. P. R. Strong}, GT. PORTLAND ST.{Capt. P. R. Strong} LONDON, W. 1. DIRECTORS: G.{Mr Griffiths - Chief Accountant / Mr Gnapp} A.{Mr Adams} MOWER, M.I.MECH.E. (CHAIRMAN) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} R.{Sir Henry Royce} THURSFIELD, M.I.MECH.E. OUR REF: JWL/NS.{Norman Scott} YOUR REF: 9th February, 1933. Handwritten routing note: Hs{Lord Ernest Hives - Chair} / Please SD' / RZ / 10/2/33 Messrs. Rolls-Royce Ltd., DERBY. Dear Sirs, For the attention of Mr. Mills. We thank you for the interview you recently granted to our Mr. T. A.{Mr Adams} Pain regarding the six Radiator Thermostats despatched to you on the 27th ult. We are surprised to hear from Mr. Pain that the first one of these which you tested opened at 40°C. and think there must be some mistake. Actually these Thermostats were filled with acetone which does not vapourise until 57°C. is reached so no pressure or movement whatever could be obtained until at least 57°C. was reached. Under working conditions we presume that the movement under load of 27½ lbs. at 90°C. is most essential rather than the theoretical test with no load, for which movement should commence at 75°C. Handwritten in margin: Stated HS{Lord Ernest Hives - Chair}/LRS/- | ||