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).
Girling brakes servo fault on car 6.B.IV, caused by a narrow slot on the crossmember.
| Identifier | ExFiles\Box 83\1\ scan0378 | |
| Date | 25th February 1937 | |
| 200 AFM{Anthony F. Martindale} HOTEL DE FRANCE CHATEAUROUX. Indre. France. Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/IMW{Ivan M. Waller - Head of Chateauroux}/6/JAB. 25th February 1937. To. Rm{William Robotham - Chief Engineer}/AFM.{Anthony F. Martindale} O.{Mr Oldham} Rm{William Robotham - Chief Engineer}/GWH.{George W. Hancock - Head Chateauroux} 6. B. IV. GIRLING BRAKES. I checked over 6.B.IV. at Paris yesterday before sending it on the road and found a fault which accounts for the servo not working progressively, which was complained of during the running of this car. I have indicated the trouble on the sketch enclosed. The slot in the stop on the crossmember is not sufficiently wide to allow for sideways movement of the rod with the lifting of the servo cams and bad binding takes place. This was reproduced by running with the back wheels jacked up and watching the action of the servo. The slot has been increased in width and the trouble was cured. We also observed the working of the stops when the rear brakes were disconnected and found that consider-able bending of the crossmember takes place. ---------------- Rm{William Robotham - Chief Engineer}/GWH{George W. Hancock - Head Chateauroux}/IMW.{Ivan M. Waller - Head of Chateauroux} Ivan. Waller. | ||