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 from H.M. Hobson Components Ltd. regarding a discrepancy in thread count for a bulb component.
| Identifier | ExFiles\Box 175\4\ img223 | |
| Date | 11th August 1936 | |
| Messrs. Rolls-Royce Ltd. Date 11th August 1936 Page 2. you call for 20 threads per inch, our bulb carries a thread of 14 per inch, and a comparatively small amount only is required to be taken off. If therefore this proves to be satisfactory we shall send this, together with the head, to you to-morrow, for the tests referred to in your letter of the 4th August. Yours faithfully. H.M. HOBSON(Aircraft & Motor)COMPONENTS LTD. [Signature] Managing Director. | ||