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).
Instructions and parts list for fitting a special Dynamo and Charge-Control Scheme to a 20 HP chassis.
| Identifier | ExFiles\Box 163\6\ img054 | |
| Date | 15th October 1930 | |
| X6016 Roy.{Sir Henry Royce} Sft.{Mr Swift} (crossed out) Hd.{Mr Hayward/Mr Huddy} Sft.{Mr Swift} (crossed out) D/BP. C/M.{Mr Moon / Mr Moore} (crossed out) C/Ph. EFC. (crossed out) BY/RD2/W.15-10-30. Re :- 20 H.P. Chassis No: GLR-50 - B.Hopps,Esq: - Order No: 37000. Y.1289 - The above chassis is going to be fitted with a special Dynamo and Charge-Control Scheme, and the following parts will be required :- 1 48-coil High-Output Dynamo. (EFC. will supply this Unit complete.) 1 Resistance Unit to L.O.P. D.72633 - Sec: 8190. (As instructed for "N2" Series.) 1 Piece Cable, 40/36s. Black & White, for Changeover Switch to Resistance Unit - approx: 3 ft. 1 Piece Cable, 40/36s. Black & White, for Changeover Switch to Distribution Board - approx: 3 ft. 1 D.51898 - Base Plate for Dist. Board. 2 D.72634 - Cuffs. 1 D.72635 - Cable. 1 D.72627 - Dist. Board Base. 1 D.72628 - Field Terminal. 1 D.72629 - Clip, Field Fuse. 1 Standard Cutout Unit, modified as shown on D.72632. The existing Wire, which runs from Switchbox to Distribution Board - No.2 Field Circuit - should be transferred at the Switchbox end from Switchbox to Changeover Switch. We understand from EFC. that a suitable Changeover Switch is at present fitted on this customer's Instrument Board. A Modification to the distribution board and cutout is simply that the Base is new to provide an extra Stud required for the Resistance Cables. New Rivets and Washers will be required on the Distribution Board Cover in order to enable a new Fuse Clip D.72629 to be fitted, and they are as follows :- D.50816 Rivet 2 off. D.50817 Washer 2 off. Will you please put one set of parts in hand as quickly as possible. We attach to Hd{Mr Hayward/Mr Huddy}'s copy a diagram showing the connections. Will EFC please confirm that a suitable Changeover Switch is fitted to the chassis. BY/RD. | ||