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).
Engineering drawing for a clutch lever.
| Identifier | ExFiles\Box 5\6\ 06-page043 | |
| Date | 29th May 1930 | |
| OPERATION No. 1 USE FORGING (G50230F) (OR G50230) No. 1A FORGE No. 1B HEAT TREAT No. 2 SANDBLAST No. 2A LIGHTLY GLAZE ONE SIDE No. 3 SURFACE GRIND BOTH SIDES TO THICKNESS No. 4 DRILL, MACHINE: M SPIND, TOOL No: JIG 32128 No. 4A REAM No. 5 MILL RADIUS & FLAT AT LONG END & RADIUS AT SHORT END, MACHINE: ARGON, TOOL No: BAR CUTTER 22610, CUTTER 22611, GAUGE 22759 DRAWING NUMBER: G.54086 RELATED FORGING: G50230F RELATED OPERATION: G.50237 ALL FACINGS .273-2 120° MACHINING TO EXTEND THROUGH THIS ARC IF NECESSARY REMOVE FLASH BY FILING AFTER BUSH IS PRESSED INTO POSITION SCALE 2/1 SECTION A.A. IT IS IMPORTANT THAT ALL SCALE SHOULD BE REMOVED DIMENSIONS & NOTES: .450 DIA +0 -.010 .250 +0 -.010 .175 R 1.500R REMOVE DRAW .800 DIA .550 .750 R PIECE No FORGED HERE .300 .100R .250 +0 -.010 .250 R +0 -.010 SECTION X.X. REF: CE ALL COPIES TO EXP: PATT. WORKS: FORGE T.O.: S.R. P.D.: R S.D.: AMERICA T.D.: COST DRAWN: TWS TRACED: MC CHECKED: [signature] APPROVED: [signature] LIMIT BOOK DATE: 19-12-29 USED ON: 20/25HP 4 GCOO DATE: 20-12-29 USED ON OFF SECTION: 7.72 / 29-5-30 TITLE BLOCK: SCALE: 2/1 HEAT TREAT: BRINELL 255-277, STANTON 3500 SPEC No: 2063 TITLE: LEVER FOR CLUTCH MATERIAL: S/N STAMP: SUPERSEDED BY ISSUE A183 DATE 11-1-83 | ||