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).
Description of the mechanics and astonishingly fast oscillation of a conveyor system with flexible legs.
| Identifier | ExFiles\Box 67a\2\ scan0021 | |
| Date | 3rd September 1927 guessed | |
| - 3 - legs were carried at their lower ends on the girder an inch or two further forward than their upper attachment to the sides of the conveyor trough giving a rearward angle of perhaps 8 or 10 degrees at the top. The rear end of the conveyor had a connecting rod attached to the crank pin of small shaft giving a throw of about an inch or less. This shaft and crank pin were rotated at high speed by an electric motor giving longitudinal oscillation to the conveyor trough made possible by the attachment of flexible legs above mentioned. When this conveyor was running it moved backwards and downwards for half a revolution and upwards and forwards for the other half revolution, and the speed with which it made heavy grain traverse its length was astonishing. I think it is a movement something like this which makes rear passengers compelled to brace themselves against a foot rest. I admit all this may appear to you to be very indefinite and perhaps not a bit helpful, but giving the matter some thought I can certainly see many features I have not realised in the past which I felt I ought to put before you. | ||