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).
Appropriate thickness for Ebonite separators in Peto & Radford batteries.
| Identifier | ExFiles\Box 54\5\ Scan070 | |
| Date | 22th February 1926 | |
| EFC. C.Wd.{Mr Wood/Mr Whitehead} BY2/H.{Arthur M. Hanbury - Head Complaints} 22.2.26. PETO & RADFORD BATTERIES. Wd.{Mr Wood/Mr Whitehead} has handed me a copy of your letter of the 6th inst. written to Messrs Peto & Radford. I am of the opinion that we should have the same dimensions of Ebonite separator fitted to both Exide & P & R; since the Exide thickness of .5 mm. gives no trouble, I suggest that this would be the correct one to use. I believe we had some trouble occasionally from the ebonite sheet pinching through when .4 mm. was used previously. Unless P & R.{Sir Henry Royce} can demonstrate to us that the ebonite then used was inferior to the ebonite they are now using, it seems to me to be a retrograde step to go back to a thickness which was originally complained of. BY.{R.W. Bailey - Chief Engineer} By | ||