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).
Particulars for engine bearer arms, including dimensions, material, and heat treatment.
| Identifier | ExFiles\Box 65\4\ scan0039 | |
| Date | 16th March 1925 | |
| 48005 Mr.Shelton. c. Hs.{Lord Ernest Hives - Chair} BY5/H.{Arthur M. Hanbury - Head Complaints} 16. 3. 25. ENGINE BEARER ARMS. -------------------- We must give particulars of the tube, i.e. a/- Length. b/- Inside diameter. c/- Outside diameter. d/- 3½% Nickel Steel. Spec.236. to Order Office on Monday without fail. We will machine and grind outside dia. of tube and taper it down on outside diameter in machining. Most necessary the Order Office have the above particulars. We should heat treat tube ourselves, - Brinell 249 - 277. This figure will give good fatigue resistance, but will not be too hard. It will bend if overloaded. BY.{R.W. Bailey - Chief Engineer} [Signature: Roy{Sir Henry Royce}] | ||