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).
Letter to Bleriot Ltd. detailing a report on differences found in supplied 'Cut-out' samples.
| Identifier | ExFiles\Box 48\3\ Scan195 | |
| Date | 19th February 1921 | |
| W.D/A (100 T) (S H. {Arthur M. Hanbury - Head Complaints} 798. 10-12-20) G 2947 X.4215 Copy for EFC. {E. Fowler Clarke - Electrical Engineer} Wd {Mr Wood / Mr Whitehead} 4/NJ19221. 19th February,1921. Messrs.Bleriot Ltd., 2 & 4, Catesby Street, Walworth, London, S.E.17. Dear Sirs, X.4215 Bleriot Cut-out. Our Experimental Dept. have requested us to obtain from you another Cut-out similar to the original sample submitted to us and same as the second one you supplied to us. With this request, they have sent us the following report:- "The first (sample) cut-out was sent to Mr.Royce for "his inspection and he kept same; the second cut-out was "fitted on a car which was sent to America. These had "plated cases. "The six cut-outs we have received from the Bleriot "Co. since they had our specification of test have black "cases (this is in accordance with our request) and an "examination of one of them, the seal of which appeared "to be broken, shows that they differ from the original "sample in the following respects:- (1) The main spring is of a different finish, shape and size, giving a stronger control. (2) The amount of winding, i.e., size of the coil, is now smaller and the resistances greater. (3) The loose auxiliary carbon contact is of too soft material and is crumbling away. (4) The main air gap appears to be a little smaller. "Apart from the above, however, so far as we have (contd) | ||