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).
Parts list and instructions for an E.A.C.11 push button switch.
| Identifier | ExFiles\Box 64\3\ scan0258 | |
| Date | 29th August 1924 | |
| To R.M.C. C. EFC. X8651 BY/RD3/ML.29.8.24. X.9652 - E.A.C.11 PUSH BUTTON SWITCH. Please receive herewith 1 Blueprint of the following parts detailed from Lec.1904. X. D.70764 - Switch Base. X. D.70765 - Press Button Casing. D.70766 - Terminal Plate. D.70767 - Terminal Plate. D.70768 - Contact Arm Support. D.70769 - Cheese Head Securing Screw. D.70770 - Spring Guide Screw. D.70771 - Contact Arm Release Spring. D.70772 - Contact Arm. D.70773 - Ferrule for Push Rod. X. D.70774 - Contact Maker. X. D.70775 - Primary Contact. D.70776 - Primary Contact Spring. X. D.70777 - Contact Maker. D.70778 - Contact Clamping Plate. D.70779 - Terminal Plate Securing Screw. D.70780 - Assembly of Loose Contact. D.70781 - Contact Spring. D.70782 - Cable Eye. D.70783 - Face Plate. D.70784 - Switch Securing Screw. X. D.70785 - Push Rod. D.70786 - Push Button Release Spring. D.70787 - Push Rod Guide. D.70788 - Spring Ring. D.70789 - Push Button. D.70790- L.O.P. X. 1 print extra for Mr Brock or outside suppliers. This switch is to be mounted on the Instrument Board and it is necessary that the board should be 3/4" thick at this point or the flush fitting of the face plate will be spoiled. D.70703 - Switch Cover has been held up pending information from West WitteringHenry Royce's home town. Will you please put this in hand as soon as possible. BY/RD. | ||