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).
Progress on starting schemes, air pumps, and tyre pumps for Armoured Cars.
| Identifier | ExFiles\Box 180\M5\ img001 | |
| Date | 30th September 1920 | |
| R.R. 235A. (100 T/S.H. 159, 11-8-20) C 1200 OCT 1 1920 X.4195 To B from DA.{Bernard Day - Chassis Design} Copy to BN.{W.O. Bentley / Mr Barrington} Copy to EFC. RECEIVED. DA{Bernard Day - Chassis Design}8/CB30-9-20. X.4195 Re Armoured Cars. We have not been able to complete the starting schemes because we had not the necessary particulars of the armour plating and bodywork. This came to hand this morning, and we shall now be able to finish. We have gone forward simultaneously with the scheme making use of the existing starting handle and that starting off the flywheel. We are rather disposed to think that the latter makes the simpler job. We have also done a considerable amount of work on the air pump, and have yet a number of methods of driving it. We now think we have two or three alternatives schemes for driving off the fan, and off the magneto driving shaft, but they are not yet sufficiently advanced to submit to you. We have also in hand for the Armoured.cars - A method of slinging the present battery in the frame. An oil separator for the tyre pump. An Impulse starter for the magneto drive, and a method of temporarily mounting the "Kellogg" or similar tyre pump on the chassis to bridge over the time until our own tyre pump is ready. The understanding with Col. Hutchinson is that a tyre pump of some kind is a necessity, and he would like almost any tyre pump fitted as a temporary expedient, so that the cars, when they are sent abroad, will have something of this kind on them. He also requested that some form of Impulse starter Contd. | ||