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 discussing various paint and finishing options for steel battery boxes, including chlorinated rubber paint and metallic lead deposition.
| Identifier | ExFiles\Box 164\3\ img070 | |
| Date | 25th November 1937 | |
| CONDUCTED BY G.{Mr Griffiths - Chief Accountant / Mr Gnapp} GODDARD WATTS TECHNICAL CONSULTANTS, J.{Mr Johnson W.M.} K.{Mr Kilner} WlNBER, O.{Mr Oldham} A.{Mr Adams} BAYNE, A.R.I.B.A SECRETARY TO THE LEAD INDUSTRIES DEVELOPMENT COUNCIL W.R.S. HODGSON, REX HOUSE, 38, KING WILLIAM ST.{Capt. P. R. Strong} LONDON, E.C.4. PHONE. MANSION HOUSE 2855 CHILDS 6021 TECHNICAL INFORMATION BUREAU OF LEAD INDUSTRIES DEVELOPMENT COUNCIL 19 · HOBART PLACE · EATON SQ · S·W·1 · SLOANE 7805 25th November 1937. Messrs. Rolls-Royce Ltd., Derby. Reference: Rm{William Robotham - Chief Engineer}/RC.{R. Childs}3/AP. Dear Sirs, With further reference to your letter on the methods of painting steel battery boxes, from such enquiries as we have been able to make and from the information available here, we doubt very much whether any normal lead paint made on a linseed oil basis would be of any real use. It has been suggested to us by those engaged in the research side, that a red lead chlorinated rubber paint, suitably tinted, if necessary, might have advantages, and would certainly give an inhibiting type of protection to the steel as well as the purely mechanical protection obtainable from any paint film. It appears, however, that the possibilities of utilising a lead pigment with chlorinated rubber have not been investigated, and reported upon, to any great extent, and so far as we know no firm is manufacturing or indeed has much information on the subject. In any event a paint of this type, or indeed of any other possible type, will not stand up satisfactorily against abrasion and the possibility of chipping when the battery is first inserted. Under the circumstances we should not, therefore, like to put forward any lead paint, unless you would care to experiment with the newer type mentioned above. We would, however, suggest that a metallic lead deposition would provide a really satisfactory finish. As we said previously it is now possible to lead spray in the same way that zinc and other metals are sprayed by one of several processes. There are, of course, poison problems which must | ||