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 performance of condensers when treated with different types of wax and resin.
| Identifier | ExFiles\Box 52\3\ Scan184 | |
| Date | 20th June 1920 | |
| Order No. PC 744 (3) This is shown by the curves of the three condensers, Nos 1576, 1577, and 1600, treated with pure wax, which are quite consistent in this respect. This feature of the wax is again evident in the behaviour of the two condensers Nos 1590 and 1609. Normally, as standard condensers, the curves for these two would have risen sharply; especially after reaching 50°C. Impregnation with commercial paraffin wax in the one, and a mixture of commercial wax and resin in the other, appears to have almost counter-balanced this characteristic, resulting in a curve which only gently rises. Commercial paraffin wax, however, appears to be inconsistent and unreliable as indicated by condensers 1312, and 1335. No 1312 rose slightly and broke down on reaching a temperature of 55°C cont'd.. | ||