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 accumulator manufacturer Peto & Radford detailing a patented improvement to their batteries.
| Identifier | ExFiles\Box 38\5\ Scan240 | |
| Date | 19th August 1922 | |
| X.3398 Works, Dagenham Dock, Essex TELEPHONE VICTORIA 3667. 4-LINES PRIVATE BRANCH EXCHANGE. TELEGRAMS: CONCENTRATION, SOWEST, LONDON. Manufacturers of P&R Accumulators. Established 1889 PETO & RADFORD Proprietors - Pritchett & Gold and E.P.S. Company Ltd. 50 GROSVENOR GARDENS, LONDON, S.W.1. DIRECTORS: SIR ARCHIBALD O.GOLD F.C.GRAHAM-MENZIES C.R.D.PRITCHETT G.R.N.MINCHIN T.W.PRITCHETT WILLIAM PETO DAVID WILLOCK. YOUR REF. OUR REF. GRNM/HMA. August 19th 1922. RECEIVED Messrs Rolls Royce Ltd., Nightingale Road, DERBY. X 3398 X 4414P Dear Sirs, We have taken this opportunity of informing you of a little refinement that will be incorporated in all Peto & Radford batteries in the future. In the past with all makes of batteries there has been at times a little trouble caused through the separators rising up above the tops of the plates. Perhaps you have found this yourselves. The methods to prevent this have been somewhat crude. In most batteries there has been no provision for preventing it at all and in others pieces of wood have been wedged in and other methods adopted which have not been too satisfactory. We have just patented an arrangement whereby we extend the base of the fixed part of the vent downwards giving it two feet which extend across the width of the cell and rest lightly on the tops of the plates and separators. This has the effect of holding down the separators and of baffling the free volume of acid above the plates and reduces opportunity for acid to escape up through the vent. We are informing our various customers of this little improvement and thought perhaps you would like to know of it. Yours faithfully, PETO & RADFORD. G.R.N.Minchin | ||