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).
Specification revision for L.H. Chassis 25-LX, detailing changes to the hubs, brakes, and axles.
| Identifier | ExFiles\Box 169\1\ img146 | |
| Date | 4th February 1931 | |
| To Hs.{Lord Ernest Hives - Chair} from RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel} RHC{R. H. Coverley - Production Engineer}/WSC{W. S. Cassel}1/S4.2.31. L.H.Chassis 25-LX. (Engine Unit No.21). Specification of the above chassis issued in RHC{R. H. Coverley - Production Engineer}/WSC{W. S. Cassel}4/IS.15.10.30. is revised as follows:- Passed to Test 31.1.31. Previous Specification Rear Hubs to LOP.G.77235 G.72879 Brake Drums. Removed. Rear Brakes to LOP.G.78278 G.78274/5 Dust Excluders Removed. Front Axle & Brakes to LOP.G.78632 G.78823 Brake Drums. G.78309/10 Dust excluders. GWH{George W. Hancock - Head Chateauroux}'s Scheme of Brake Straps to arrgt: Ex.5077. Removed. Revised specification Rear Hubs to LOP.G.77235 Stiffer Brake Drums to N.S.3177 (Built up type) fitted. G.79033 Brake Drums (45% to 54%) Carbon Steel. G.79034 End Plates. Rear Brakes to LOP. G.78278 The following parts incorporating N.S.3177:- G.79035/6 Dust Excluders. Existing Ferobestos Brake Shoes re-bedded. Front Axle & Brakes to LOP.G.78632 Stiffer Brake Drums to N.S.3176 (Built up Type) fitted. G.79037 Brake Drums (45% to 54%) Carbon Steel. G.79038 End Plates. G.79039/40 Dust excluders. G.78382 Brake Shoes .375 thick Ferobestos. G.7838C/S Brake Straps. RHC{R. H. Coverley - Production Engineer}/WSC.{W. S. Cassel} | ||