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).
Specification detailing the materials and construction for a double interleaved strip for a rolled condenser.
Identifier | ExFiles\Box 52\3\ Scan039 | |
Date | 12th December 1921 | |
Contd. -2- EFC {E. Fowler Clarke - Electrical Engineer} 1/T6.12.21. 5. The minimum number of reels obtainable of 25 yards length of double interleaved strip, composed of four thicknesses in all, two being of .002" thickness oiled silk as quoted by Messrs. Ioco, and otherwise as specified in (3) above, and specification of 12.12.21, and the other two of tin or aluminium foil as specified in (4) above and specification 2.12.21; the four thicknesses being alternately of the foil and oiled silk in condenser fasion, so that the prepared strip may be rolled up on a suitable former in producing the rolled condenser. It is assumed that the four thicknesses would be caused to adhere together sufficiently to enable the material to be treated as one strip, similar to the sample strip taken from the U.S.A, Bosch condenser, except that this latter is of different dimensions. LFC. | ||