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).
Requesting an order for a Hopkinson Maximum Pressure Gauge.
| Identifier | ExFiles\Box 143\1\ scan0350 | |
| Date | 20th February 1939 | |
| 1209 To EJJ. from Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards}5/MH.{M. Huckerby}20.2.39. MAXIMUM PRESSURE GAUGE. Will you please order one Hopkinson Maximumm Pressure Gauge, graduated in 100 lbs/sq.in. intervals, range 0 - 1500 lbs/sq.in. Rm{William Robotham - Chief Engineer}/Ed.{J. L. Edwards} | ||