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).
Suggested modifications to an axle testing rig.
| Identifier | ExFiles\Box 74\4\ scan0124 | |
| Date | 9th September 1911 guessed | |
| -3- following modifications should be considered:- (1) Hand operated lever to differential clutch so that the load can be imposed gradually and varied. (2) The boxes to be mounted further apart from each other. (3) Belt drive to replace chains. (4) Heavy flywheel on rig, or variable speed gearing. Axle Testing. The rig we have had running for some time was designed to take two axles at once; it is so designed that when one axle is being tested for forward drive then the other is running on the reverse overrun - if the pulleys are changed, the first axle will run on the forward overrun and the other on the reverse drive. In practice the works do not find it necessary to test axles on either reverse drive or reverse overrun, with the result that this end of the rig is of no use, an old axle being kept running merely to provide the necessary drive. I understand from the Axle Testing Dept. that this rig, since it only deals with one axle at a time, is insufficient for their requirements and also, as stated, necessitates changing the pulleys during the test of each axle. I suggest that we should modify this rig so that it will take two axles at once, one on forward drive and the other on forward overrun. This modification is not simple and will be fairly extensive but it will be better to do this than to make another rig like the present one. Such a scheme should not be difficult to devise. | ||