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).
Letter discussing snags and potential modifications for an auto-locking damper.
| Identifier | ExFiles\Box 152\1\ scan0347 | |
| Date | 9th June 1937 | |
| -2- 9th June, 1937. I have received from Mr. Bogg this morning your arrangement of the Auto-locking damper. At first sight there are two snags - (a) there is a large air lock immediately above the valve, which can be overcome by drilling a hole through the top of the locking member. (b) I think the locking member should be in a bush. We found that these locking members very soon seized in aluminium bores. We do not require the leak adjustment to 472-Z, as we shall give a leak by raising the valve off its seat with a washer. Yours faithfully, For ROLLS-ROYCE LTD. | ||