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).
Graph plotting temperature against force for a Hobson Remote Acting Thermostat at different lift settings.
| Identifier | ExFiles\Box 156\1\ scan0109 | |
| Date | 6th June 1935 | |
| HOBSON THERMOSTAT (REMOTE ACTING) LBS PULL 60 40 20 0 20 40 60 80 100 120 LBS PUSH TEMP °C .375 LIFT .010 LIFT 6-6-35 | ||