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).
Instructions detailing temperature tests on four different configurations of taper condensers.
| Identifier | ExFiles\Box 52\3\ Scan174 | |
| Date | 22th March 1924 | |
| RR 238 (150 BKS.) (SH57. 29-6-20.) MP 224350 X.4430. ROLLS-ROYCE LTD. INSTRUCTIONS. To E.F.C. Mar. 22nd 1924 Order No. P.C. 41 Customer's No. X.4430 Temperature Tests on Taper Condensers. Further condenser tests have now been completed, the condensers, four in number used this time being as follows:- 1 Std condenser but with the ends sealed with synthetic (Sto) varnish. Marked S.E. 2 Std condenser but with the ends sealed with Stickilène varnish. Marked S.S. 3 Std condenser but with modified connections, wherein the tinfoil plate of the condenser is wrapped round the strip connector once or twice to obtain a better connection. Marked I.C.1. 4 Same as 3. Marked I.C.2. As will be seen no improvement has been obtained by sealing the ends of contd. Signed This Sheet must be filed on completion of the work. | ||