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).
Request for the manufacture of two types of thermostat springs with detailed specifications.
| Identifier | ExFiles\Box 39\4\ Scan256 | |
| Date | 7th April 1932 | |
| x3499 To RHC.{R. H. Coverley - Production Engineer} From Hs{Lord Ernest Hives - Chair}/Les.{Ivan A. Leslie} Hs{Lord Ernest Hives - Chair}/Les.1/MJ.7.4.32. THERMOSTAT SPRINGS. Will you please make six of each of the following springs :- A.{Mr Adams} B. Dia. of wire (.064") 16 S.W.G. .072 (15 S.W.G.) Inside dia. .780" .780" Solid Length 1.035" 1.050" FreeLength 4.360" 3.860" Load at 1.062" 10 lbs. 15 lbs. No. of coils before grinding square :- 16.5 14. Hs{Lord Ernest Hives - Chair}/I.A.Leslie. | ||