Blueprint of a rocker shaft L7 and L8 type RH.
| Identifier | ExFiles\Box 28\3\ Scan180 | |
| Date | 24th June 1930 | |
| ROCKER SHAFT L7 AND L8 TYPE RH {R. Hollingworth} MATERIAL: 3 1/2% NICKEL STEEL S69c SPECIALLY HEAT TREATED MACHINE WHERE MARKED / EXTRA FINE FINISH WHERE MARKED // GROUND WHERE MARKED G ALL DIMENSIONS NOT LIMITED TO BE ±.010" HEAT TREATED TO BRINELL No 229-269 VIEW FROM SCREWED END SERRATION THUS / TO COME ON ¢ HOLD TO TOP LIMIT. NOTE: POINT OF INTERSECTION OF THESE TWO ¢s MUST BE AT POINT SHEWN ON DRAWING. FOR THIS DIMENSION SEE SHEET 2 ADAMANT STD SERRATED CONE SEE P1700 36 SERRATIONS HOLD TO TOP LIMIT 7/8 B.S.F. DRILL 13/64 DIA VIEW FROM BODY END RADIUS THESE CORNERS SECTION AA {D. Abbot Anderson} IN DIRECTION OF ARROW A SECTION BB IN DIRECTION OF ARROW B 2 BRITISH STANDARD SERRATIONS CUTTER FOR MILLING FORK 4 3/4 FLAT DIA SECTION BB IN DIRECTION OF ARROW C REVISION TABLE: HOLD TO TOP LIMIT ADDED TO 2.75 DIM 2-8-30 7/16 DIA SPOTFACE WAS 1/16 DIA 10-12-30 ALS 1.9425 FORK ADDED .33 DIM & RAD ON FORK .4065+.010" WAS 9/32, 3-1-31 J.E.C L WAS 7 ON FORK 22.1.34 ALS P2198 | ||
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).