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).
Continued discussion on car jack designs, comparing operating times and proposing the addition of axle pads.
| Identifier | ExFiles\Box 180\M3\M3.6\ img048 | |
| Date | 27th June 1919 | |
| R.H. 235 a (100 T) (S.F. 575. 16-4-19. C. 2554. Contd. -3- EHS/LG27.6.19. ------------ jacks, that is arrived at by making the jack very low geared which means that the handle has to be turned many more times when raising and lowering the jack. As these jacks have no quick lifting devices, the actual time taken to operate the handle when raising and lowering the car is considerably longer in the case of the "Rapid" Jack than with the "Michelin". What we think is necessary is that proper pads for the jack should be fitted to the front and rear axles and if possible these pads should be made somewhat the same height. This matter is now in hand. EH. | ||