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 The Rover Company Ltd responding to questions about Girling Brakes.
| Identifier | ExFiles\Box 120\3\ scan0095 | |
| Date | 13th November 1934 | |
| TELEPHONE: No 8081 (7 Lines) ALL COMMUNICATIONS TO BE ADDRESSED TO THE COMPANY AND NOT TO INDIVIDUALS London Service Depot SEAGRAVE ROAD . FULHAM . LONDON . S.W.6. Contractors to H.M. Government. TELEGRAMS: ROVER, COVENTRY. B.C.M/ROVER CODES: A.B.C. 5TH EDITION LIEBERS . MARCONI MOTOR TRADE . BENTLEY THE ROVER COMPANY LTD Our Ref MCW/PM. NEW METEOR WORKS: COVENTRY Your Ref Hs{Lord Ernest Hives - Chair}/Rm.{William Robotham - Chief Engineer}27/KW. 13th. November, 1934. Messrs. Rolls-Royce Ltd., DERBY. For the attention of W.A.Robotham Esq. Dear Mr. Robotham, Your letter of Nov. 12th. has been passed to me; my brother being away. Here-with the answers to your questions re. Girling Brakes:- (1) We have had absolutely no trouble in service with the wedge. We have found in some cases, that the wedge becomes slightly indented, where it makes contact with the rollers. The maximum depth of this indentation is about one thou., and in this condition, it altered the wedge angle locally by about one degree. This, however, made no appreciable difference in the operation of the brake. We are enclosing a wedge taken from a front brake of the first car we ever fitted with Girling Brakes. This job had done about 10,000 miles. In this particular case you will see that there is practically no indentation, presumably due to a rather thicker case. We make these wedges out of a straight case hardening steel with, of course, a very low core brinell, so that Cont'd..... | ||