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).
Requesting information and outlining tests on road springs, as per Mr. Royce's instructions.
| Identifier | WestWitteringFiles\J\January1923\ Scan102 | |
| Date | 27th January 1923 | |
| R.R. 285A (100 T) (S.H 159. 11-8-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 2800 ORIGINAL. DA{Bernard Day - Chassis Design}2/M27.1.23. TO HS.{Lord Ernest Hives - Chair} FROM DA.{Bernard Day - Chassis Design} RE. ROAD SPRINGS. [Handwritten: X2628 / <del>X4261</del>] Mr. Royce would like some information as to the effect of torsion and side bending in the road springs. We can calculate of course the load due to twisting the top plate through any angle, but what we are not sure about is the effect of all the other plates. Similarly we can calculate the stress in the [handwritten: top] plate due to bending it edgewise, but we are not sure what is the effect of the remaining plates. Mr. Royce thought you might take a road spring and having anchored the front end in the usual way, twist it from about the centre to an angle of say 14°, and measure the torque required. Also a road spring might be laid on it's side and loaded in the centre with suitable means to prevent it turning over, <del>and then loaded</del> with it's normal vertical load, and the deflection measured. The object in each case is to get an idea of the forces that may be expected on the spring fixings. DA.{Bernard Day - Chassis Design} [Signature] [Stamp: RECEIVED] [Circular Stamp: Hs{Lord Ernest Hives - Chair} JAN 29 1923] | ||