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).
Enclosing blueprints for a list of parts related to a main circuit switch.
| Identifier | ExFiles\Box 64\3\ scan0202 | |
| Date | 24th December 1925 | |
| X 7650. C. EFC. BY/RD1/ML24.12.25. RE E.A.C. V11 - MAIN CIRCUIT SWITCH - SEC:8260. In accordance with LeC.2179, please receive herewith blueprints of the following parts:- D.71024 - Switch Base. D.71025 - Switch Cover. D.71026 - Support for Spring Contact. D.71027 - Contact Spring. D.71028 - Centre Boss - Earthing Contact. D.71029 - Operating Lever. D.71030 - Spring Contact. D.71031 - Pivot Pin - Contact Support. D.71032 - Insulating Bush - " D.71033 - Clamping Washer - Contact Support. D.71034 - Insulating Washer - " D.71035 - Insulating Base - " D.71036 - Shaft for Operating Lever. D.71037 - Bush for Switch Base. D.71038 - Insulating Segment (Earthing Contact). D.71039 - Clamping Plate - " D.71040 - Earthing Contact Segment. D.71041 - Rivet - Earthing Contact. D.71042 - Assembly of Earthing Contact. D.71043 - Securing Screw for Cover. D.71044 - Spring Retaining Ring. D.71045 - Screw for Spring Contact Support. D.71046 - L.O.P. Main Circuit Switch. We have produced the cover in alum al though the LeC. requests moulding material, but in order to get the job tried out quickly as W.W. require, alum should be used. Will you please put this in hand. BY/RD. | ||