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).
Comments and corrections on the Electric Installation Instruction Book.
| Identifier | ExFiles\Box 26\2\ Scan225 | |
| Date | 30th December 1920 | |
| E.H. * 950 * 120 (T) (S B. 914. 5-9-19) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 247b. (14) RECEIVED DEC 31 1920 X.995 Stl/EP{G. Eric Platford - Chief Quality Engineer}/30.12.20. S/W. CK.{Mr Clark} X.995 ELECTRIC INSTALLATION INSTRUCTION BOOK. EFO RECEIVED DEC 31 1920 When I saw you recently you were good enough to say that you would be glad to hear any remarks that might occur to me on going through the above booklet. I have just been reading it, and it strikes me as being extremely clear and useful. The following points, however, occur to me. Pages 10 and 23 referring to removal of cover "I" and lubrication at this point. In EP{G. Eric Platford - Chief Quality Engineer}'s memorandum No. 102 of 9.8.20, he says "It should be generally recommended that no grease at all should be applied to this bearing whilst the car is in actual service". I should be glad to know whether the instructions given in the booklet should be taken as superceeding the above mentioned memo. Incidentally, I note that this cover is referred to as "J" on page 10, whereas it apparently should be "I". Page 12. At the bottom of this page, referring to the control winding, it states that the current passes through from the control brush to a main brush. Is not the reverse the case when this winding is fulfilling its chief object. Page 21, 3rd paragraph. I find that a common, if short lived, cause of failure to charge is produced by the automatic cut out sticking, and failing to cut in. Tapping with the fingers on the outside of the box is generally sufficient to overcome the trouble. The above is also a cause of the blowing of the field fuze. Another common cause of blowing of this fuze is the failure of the cut out to make proper contact through the presence of dust between the surfaces. Page 32, last paragraph. Referring to the resistance being on the main showing the higher potential to earth. I imagine that this stipulation is with the object of avoiding the effect which would otherwise result from an earth on to other lead between resistance and battery. If this is so, would not a note on the subject be of advantage. When I saw you the other day, you will perhaps remember that I mentioned that one owner had asked me in view of the fact that return wires are provided on the lighting circuits, | ||