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 from S. Smith & Sons regarding the design of shutter operating thermostats.
| Identifier | ExFiles\Box 39\4\ Scan139 | |
| Date | 26th August 1930 | |
| X3499 TELEPHONE: EAST 0149. S. SMITH & SONS (MOTOR ACCESSORIES) LTD., BIRMINGHAM WORKS. HEAD OFFICE: CRICKLEWOOD WORKS, LONDON, N.W. 2. Reply to:- 173-177, CLIFTON ROAD, ASTON, BIRMINGHAM. OUR REF. FGE/AH. 26.8.1930. YOURS Messrs Rolls Royce Ltd. Derby. Dear Sirs, For the attention of Mr Robotham. We beg to thank you for your letter of the 25 th inst and note that you will shortly be sending an order for two of a larger type of shutter operating thermostats. We propose to design these in the same general form you are now using, and to send you a dimensioned arrangement drawing for your approval before proceeding with the manufacture of the parts. Please note that the stroke of the bellows may be anything up to half an inch and that we recommend using the whole stroke in order to obtain greater sensitivity. Upon thinking over the details of the design of this special thermostat we do not anticipate any trouble with the guided central member providing that its is not too close a fit. Yours faithfully, S. SMITH & SONS (MOTOR ACCESSORIES) LTD. W. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} Eckford Midland Engineer. per JH [STAMP: RECEIVED AUG 27 1930] FJH.{Fred J. Hardy - Chief Dev. Engineer} | ||