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).
Suggestions for improving the sequence starter push button switch after examination in the lab.
| Identifier | ExFiles\Box 64\4\ scan0191 | |
| Date | 28th February 1929 | |
| ROLLS-ROYCE LTD. INSTRUCTIONS. RR 238 (150 BKS.) (DB{Donald Bastow - Suspensions} 461-8-12-24) MP 306975 X7655 To E.7.C. Date: 28-2-1929. Order No. WD{Mr Wood/Mr Whitehead}40 Customer's No. X7625 Sequence starter push button switch (new duplex) As a result of examining and operating this unit in the lab we are of the opinion and suggest that:- (1) The button diameter should be larger. (2) The gap between the coppers when the carbons just make could be smaller so as to obviate considerably the possibility of burning of carbons. (3) The main spring rating should be reduced. BYRD has informed me that on receipt of our suggestions he will look into the question of alteration. Signed H.E.W. This Sheet must be filed on completion of the work. | ||