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).
Blueprint diagram of an overhead hoist, platform, and rail system.
| Identifier | ExFiles\Box 181\M7\ img054 | |
| Date | 21th December 1923 guessed | |
| Long Drive Motor, Platform, C.T Motor, Hoisting Motor, Electric, Brake, CAGE, Overaly to face, top step, 5'-0", Highest Position of Hook, 30'-9" centres of Rails, Hand..., for..., Con..., Lev..., Foo... | ||