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).
Technical drawing for a 4.50E E.L.P. wheel rim.
| Identifier | ExFiles\Box 159\3\ scan0048 | |
| Date | 26th May 1938 | |
| MODIFICATIONS. Ⓐ MOD Nº 8750 Ⓑ 1/64 R ADDED & 1/32 CHAMFER" 8/11/38 JD{J. Draper - Frames} 1 - 5/32" DIA. HOLE IN EACH FLANGE DIAMETRICALLY OPPOSITE VALVE HOLE FOR ALL WHEELS, (PLAIN & SPOKED DISC WHEELS TO HAVE 2 HOLES, 1 ADJACENT & 1 OPPOSITE VALVE HOLE WHEN BONDERISED.) TOOL LIST FORMING & CIRCLING ROLLS: B03731 - 41 CROPPING TOOLS: C09450 & 1 RECIRCLING TOOLS: B03742-4 WELDING BLOCK: STB339/40 ROUNDING TOOLS: 1/STB 341 & 2 CONTRACTING BLOCKS: 1/STB 342 VALVE HOLE TOOLS VALVE HOLE GAUGE: B03699 CIRCUMFERENCE TAPES: STB281 & 305 LIMIT GAUGES: B03708 & 9 MEAN GAUGES: B03704 & 7 WELL TAPE: 27/STB305 TRUE RUNNING: A637 EXPANDING TOOLS RIM SIZE TABLE: RIM SIZE | A | B (INS. | M.M.) | C | D (INS. | M.M.) 450-16 | 15.97 | 50.17 | 1274.5 | 13.91 | 43.70 | 1110 MATL: M.S. STRIP .128" THICK x 7 3/4" WIDE TITLE BLOCK: SCALE:--FULL SIZE DRAWN: J W TRACED: CHECKED: DATE: 26-5-38 D.{John DeLooze - Company Secretary} M.{Mr Moon / Mr Moore} C. TITLE: 4.50E. E.L.P. RIM. ISSUE Nº: MODIFICATION: A.M. APR DATE: COMPONENTS & MATERIALS:- SPEC. REF. DUNLOP RIM & WHEEL CO., LTD., FOLESHILL, COVENTRY. DRG. Nº: RSO563 DIMENSIONS NOT LIMITED ARE SUBJECT TO A TOLERANCE OF ±.005". | ||