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).
Two graphs showing the variation of capacity with temperature for five different types of paper condensers.
| Identifier | WestWitteringFiles\L\July1924-September1924\ Scan85 | |
| Date | 19th July 1924 guessed | |
| I VARIATION OF CAPACITY WITH TEMPERATURE OF PAPER CONDENSERS. Top Graph: Y-Axis: CAPACITY (M.Fds.) X-Axis: TEMPERATURE (°C) Legend: 1590 STANDARD CONDENSER BUT NOT BAKED. IMPREGNATED WITH COMMERCIAL PARAFFIN WAX. 1312 CONDENSER MADE UP WITH UNTREATED WHITE PAPER & THE WHOLE IMPREGNATED WITH COMMERCIAL PARAFFIN WAX. 1600 CONDENSER MADE UP WITH UNTREATED WHITE PAPER AND THE WHOLE IMPREGNATED WITH PURE WAX. MELTING POINT:- 125° F.{Mr Friese} Plot Labels: No. 1590 No. 1312 (BROKE DOWN) No. 1600 Bottom Graph: Y-Axis: CAPACITY (M.Fds.) X-Axis: TEMPERATURE (°C) Legend: 1609 STANDARD CONDENSER IMPREGNATED WITH A MIXTURE OF COMMERCIAL WAX AND RESIN AND THEN BAKED. 1576 CONDENSER MADE UP WITH UNTREATED WHITE PAPER AND THE WHOLE IMPREGNATED WITH PURE WAX. MELTING POINT:- 140° F.{Mr Friese} Plot Labels: No. 1609 No. 1576 | ||