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).
Scheme and parts list for a Commutator Brecker and Ignition Distributor modification.
| Identifier | ExFiles\Box 168\3\ img019 | |
| Date | 15th November 1938 | |
| 61109- c. Pm/RC{R. Childs}, BY/RL.4/B.15.11.38 ALL CHASSIS. D.CD.986 (2 Shts). Commutator Brecker, Ignition Distributor. Section 8120. This scheme shows a commutator for interrupting the primary circuit instead of the usual contact breaker arm with contact points, and it is proposed that we should take a distributor to LOP. DW.S18, six sets of which are in hand (see our memo' BY/RL.3/B.8.10.38) and modify it by adding the following parts, blueprints of which are attached herewith :- DW.854 - Brush Holder. 2 off. DW.855 - Body - Commutator. 1 off. DW.856 - Distributor and Governor Housing. 1 off. DW.857 - Base Plate - Positive Brush. 1 off. DW.858 - Base Plate - Negative Brush. 1 off. DW.859 - Insulating Strip. 2 off. DW.860 - Support Strip - Negative Brush. 1 off. DW.861 - Base Plate - Distributor. 1 off. DW.862 - Securing Ring - Commutator. 2 off. DW.863 - Retaining Ring - Commutator. 2 off. DW.864 - Commutator Bar. 6 off. DW.865 - Insulation - Commutator. 6 off. DW.866 - Cover Plate - Brush Holder. 2 off. DW.867 - Brush - Commutator. 2 off. D.74667 - Spring - Brush. 2 off. L.75684 - Stud - L.T. Terminal. 1 off. -Contd- | ||