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).
Tests of a 22° radiator and two different footbrake designs.
Identifier | ExFiles\Box 3\1\ 01-page161 | |
Date | 12th March 1913 guessed | |
( 2 ) AN/TSH17/L12313 results of all the tests and are preparing as far as we dare sets of parts for the 22° radiator. As suggested by Mr Royce one of the cars only is being tested severely to prove that the design is right, and the others are not being worn out unnecessarily. Handwritten in left margin: 4.81 X Footbrake with cast iron liners fitted with Ferodo tins - X.188 This brake seems to possess all the evils of the ordinary cast iron brake with no special virtues of its own. It is very harsh and noisy and squeaks badly when applied for a short time. Further tests are being made but I do not think we shall obtain any good results. Footbrake inter-connected with clutch so as to relieve the clutch spring pressure when brake is applied, the object being to eliminate the chattering which can be created by applying the central brake violently - X.126 This device has been tried and when perfectly adjusted reduces the chattering but does not entirely remove it. The parts need very fine adjustment and as soon as -- wears, the brake shoes for instance, the application of the brake relieves the clutch too much. The brake pedal is very hard to depress with the device fitted and the pressure needed is too much to apply comfortably with one foot. | ||