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).
Comparing the efficiency of D.W.S. jacks against Dunlop jacks.
| Identifier | ExFiles\Box 139\2\ scan0051 | |
| Date | 12th May 1934 | |
| J 3117 To Cx.{Major Len W. Cox - Advertising Manager} From Hs.{Lord Ernest Hives - Chair} c. to Sg.{Arthur F. Sidgreaves - MD} c. to Wor.{Arthur Wormald - General Works Manager} c. to E.{Mr Elliott - Chief Engineer} c. to Da.{Bernard Day - Chassis Design} c. to By.{R.W. Bailey - Chief Engineer} Hs.{Lord Ernest Hives - Chair}6/MJ.12.5.34. D.W.S. JACKS. Replying to Cx.{Major Len W. Cox - Advertising Manager}6/KW.9.3.34. We do not see the use of comparing the efficiency of the D.W.S. and the Dunlop jacks. We say right away that the old type jack is the most efficient. I would still say however that taking the case of two cars - one fitted with D.W.S. jacks and the other one having a Dunlop jack either hidden away in the car or fixed under the bonnet, that from the word 'go' the car would be jacked up very much quicker with the D.W.S. jacks even though this test is done on a clean garage floor. If the test is repeated on a nice wet muddy road there is no comparison. The chief point however is this - we do not know of a better jack than the D.W.S. and we do not know how to improve the D.W.S. If Sales know of a better jack we should only be too glad to try it out. Hs.{Lord Ernest Hives - Chair} | ||