Fitting a Gordon Armstrong damper to the Wraith front brakes as an anti-thump device.
| Identifier | ExFiles\Box 7\7\ X 606 Brakes-page126 | |
| Date | 18th June 1938 | |
| 606 To By {R.W. Bailey - Chief Engineer} /Ald. {F. Allwood - Experimental Design} from Rm {William Robotham - Chief Engineer} /AFM. {Anthony F. Martindale} c. By. {R.W. Bailey - Chief Engineer} c. Da. {Bernard Day - Chassis Design} c. Da {Bernard Day - Chassis Design} /Hdy. {William Hardy} Rm {William Robotham - Chief Engineer} /AFM. {Anthony F. Martindale} 1/WH.18.6.38. WRAITH FRONT BRAKES. We have found that a small Gordon Armstrong damper, costing about 5/- acts as an excellent anti-thump device when fitted to a brake system. Would you look into the question of fitting one of these to the front brakes of Wraith, prepare a scheme and instruct two sets. This would displace - (1) An idler lever, and bearings. (2) A large pull off spring. (3) A very large friction device, and fixings. The new 'idler lever' bearings are lubricated by the oil reservoir in the damper and should not seize. It would be interesting to know how much money we can save by this, therefore the scheme should be costed, when finished. Rm {William Robotham - Chief Engineer} /AFM. {Anthony F. Martindale} | ||
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).