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).
Experiment No. 182, detailing a load and deflection test on a steering pivot assembly.
| Identifier | ExFiles\Box 2\B002_X168\ 00000001-page009 | |
| Date | 12th December 1912 | |
| exp 182/12/12/12. (Handwritten and struck through) EXPERIMENT NO. 182. Report on Steering Pivot test. Instructions were sent out by the Drawing Office how these pivots should be tested, the method was to fit the pivot to a standard axle and fix the axle to a bed-plate & apply the load on the outside ball bearing for the wheel in an upward direction. [Diagram of steering pivot assembly] Diagram Annotations: - A Deflection Measured - B Deflection Measured - Bolted to the Bedplate here - Load Applied 1. Test with a present standard pivot, one which has been thickened up. After each weight was taken off we tried the pivot to see that it worked freely, this was to see whether the permanent set had taken place in the stub axle or in the pivot itself. Weight. Deflections Permanent. Remarks. A B A B 0 400 lbs. .019" .013" .000" .000" 800 " .048" .017" .000" .000" 1200 " .082" .018" .000" .000" 1600 " .106" .019" .000" .000" 2000 " .129" .020" .000" .000" 2400 " .152" .021" .000" .000" 2800 " .175" .037" .000" .000" 3200 " .192" .042" .000" .000" 3600 " .220" .047" .001" .001" 4000 " .246" .051" .004" .001" 4400 " .288" .058" .004" .001" 4800 " .288" .061" .004" .001" | ||