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).
Ordering materials, like paper or silk dielectric, for a Goshawk condenser.
| Identifier | ExFiles\Box 52\3\ Scan045 | |
| Date | 14th December 1921 | |
| X 4430. To ROY. {Sir Henry Royce} from EFC. {E. Fowler Clarke - Electrical Engineer} EFC {E. Fowler Clarke - Electrical Engineer} 1/T14.12.21. X.4430 - PAPER OR SILK DIELECTRIC FOR GOSHAWK CONDENSER. Further to our EFC {E. Fowler Clarke - Electrical Engineer} 1/T6.12.21 requesting you to order up certain material for the Goshawk condenser job, and the various letters which you have handed to us in this connection. We confirm our conversation with Mr. Mills that under items (1) & (2) of the above memo, the 50 yards in each case should be reduced to 25. Mr. Mills has already informed us that for item (1), paper of .001" thickness can be obtained, and has shown us samples which we have approved. Referring to Messrs. The L.P.S. Co's letter, they can be informed that we do not require the materials ready interleaved in this instance. It might, however, be convenient to have one thickness of foil ready attached to one thickness of paper, if they can conveniently carry this out, as it would make our own condenser construction somewhat easier. We can hardly agree with the L.P.S. Co. that aluminium foil would be found quite useless in view of the fact that many thousands of these condensers have been made by the U.S.A. Bosch Company with this material. In regard to the samples submitted by the L.P.S. Co., we think that paper of similar quality to the broader of the two sample strips, which is .0019" thickness, might be obtained as a second alternative under item (4) in our EFC {E. Fowler Clarke - Electrical Engineer} 1/T6.12.21. We return herewith the L.P.S. letter, having taken copy of same. With reference to the letter of Messrs. Ioco we think we should go ahead and obtain the minimum quantity they can supply, as Mr. Royce now appears to favour the use of silk, provided it be not too much dearer, owing to the greater suitability of handling. With reference to item (5), further to our above mentioned memo we would like now to cancel the idea of obtaining two dielectrics and two foils ready interleaved and substitute for this the obtaining of one foil and one dielectric ready made up in one ribbon. The main reason for this is that the insertion of the connecting strips | ||