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).
Difficulties and adjustments made to front wheel brakes.
| Identifier | ExFiles\Box 73\3\ scan0232 | |
| Date | 8th October 1924 | |
| To BY.{R.W. Bailey - Chief Engineer} from Hm.{Capt. W. Hallam - Head Repairs} C. to Wor.{Arthur Wormald - General Works Manager} C. to Hs.{Lord Ernest Hives - Chair} C. to EP.{G. Eric Platford - Chief Quality Engineer} X9940 Hm{Capt. W. Hallam - Head Repairs}6/W8.10.24. Re Front Wheel Brakes. On the chassis we are converting to Front Wheel Brakes we have found difficulty in getting the Brakes to clear when the wheels are on full lock. As BY.{R.W. Bailey - Chief Engineer} explained, this should not be the case, provided the pull off springs for the Brake Shoes are doing their work correctly, but if any stiffness due to grit or change of alignment of the bearings to the Brake Shafts on the Axle occurs, then with the old setting the brakes are still liable to come on. In agreement with BY and Hs.{Lord Ernest Hives - Chair} we have now made the clearance of the Brake Shoes to be .4" to .5" at the end of the cam lever, by a pressure which is no greater than can be applied by the thumb. Also the setting of the clearance for the brake stops on the Front Axle has been changed to .015" from .050". In order to obtain this setting and retain the balance of the levers as designed, we have arranged that the pull rod between the Equalising Gear and the Counter Shaft can be made to accommodate it, that is to say, by increasing it's length where necessary to the extent of .1" by sweating a collar on to this rod, and screwing the jaw on to the collar. With these features we are not experiencing any difficulty in assembling the Brakes to work satisfactorily. Hm.{Capt. W. Hallam - Head Repairs} | ||