Study of a 'servo clank' issue in a braking linkage, comparing standard, experimental, and proposed designs.
| Identifier | ExFiles\Box 12\5\ 05-page135 | |
| Date | 12th November 1928 | |
| SERVO CLANK. S.K. 346. I STANDARD NORMAL MOVEMENT TO APPLY REAR BRAKES IS SLIGHTLY LESS THAN MOVEMENT TO APPLY FRONT I.E. CENTRE OF ROTATION OF T LEVER IS AT POINT A. {Mr Adams} CLANK OCCURS BY SETTING UP FRONT BRAKES CLOSER THAN REAR, CENTRE OF ROTATION IS SHIFTED TO B & CLANK IS TEMPORARILY CURED PIVOT TO FRONT BRAKES TO REAR BRAKES 3.925 3.925 A B II FIRST EXP: LENGTH OF SUSPENSION ARM WAS NOT ALTERED PIVOT 2.750 5.100 1.000 C III SECOND EXP: WITH FRONT BRAKES 1 NOTCH LOOSE REAR BRAKE STANDARD, CENTRE OF ROTATION OF T LEVER IS ABOUT AT C, 1" ABOVE NORMAL PIVOT CENTRE. WITH PIVOT AS SHOWN, BRAKES DO NOT CLANK. BELIEVE THIS WILL CURE CLANKING UNDER ALL PRACTICAL CONDITIONS. 6.100 1.750 IV PROPOSAL FRONT STOP BOUND TO CLOSE BEFORE REAR, WHATEVER THE SETTING. CLANK CANNOT OCCUR. RATIO OF BRAKING FRONT & REAR UNALTERED. 7.650 5.800 [Stamp Text]: ROLLS-ROYCE LTD. DRAWING OFFICE 12. NOV 1928 DERBY | ||
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).