Page two of a letter from Colt Ventilation Ltd discussing a fan device and seeking approval.
| Identifier | ExFiles\Box 119\3\ scan0195 | |
| Date | 5th February 1932 guessed | |
| -2- through the fan without absorbing moreHP. and at the same time relieve the bonnet space of "high pressure" and excessive accumulation of heat and fumes. Your present type of fan under such conditions will therefore have an opportunity to function to the full capacity it would be capable of under normal working, i.e. under normal atmospheric pressure. Any excess of cooling is readily checked by your radiator shutters. That the device submitted is bound to require modifications to meet your particular requirements goes without saying, but it is the underlying principle of the device that we should appreciate to have your approval of. With compliments, Yours faithfully, pp. COLT VENTILATION LTD. [Signature] [Watermark: BOND MADE IN GT BRITAIN] | ||
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).