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 blueprint of a Morse Automatic Adjustment Sprocket.
| Identifier | ExFiles\Box 128\3\ scan0143 | |
| Date | 11th June 1931 | |
| REVISION TABLE: TRANS NO. 2926, DATE 9-10-31, REVISION RELEASED. TRANS NO. 2931, DATE 9-15-31, MARK A, REVISION WAS 120°. TRANS NO. 2958, DATE 9-29-31, MARK B, REVISION WAS 3 3/16. DRAWING ANNOTATIONS: DO-6135 STAMP HERE FRONT A 123°-45' 1/8 DRILL - 6 HOLES #6 GUIDE GROOVE 3.816 O.D. 3.826 2.675 / 2.677 BORE 2.6860 / 2.6875 GRIND 1/32 CHAMFER @ 45° 1.818 / 1.823 TURN 1.8015 / 1.8025 GRIND 3 & 9/32 B MANUFACTURING NOTES: .375 PITCH - TYPE #766 - 32 TEETH - 3.826 P.D. P. DIA. MUST NOT BE OVER .003 ECCENTRIC FINISH ALL OVER BREAK ALL SHARP CORNERS BEFORE HARDENING CARBONIZE & HARDEN 1/32 DEEP CAUTION BOX: CAUTION DO NOT SCALE BLUE PRINT. A TOLERANCE OF PLUS OR MINUS .010" IS ALLOWED ON ALL DIMENSIONS UNLESS OTHERWISE SPECIFIED TITLE BLOCK: MORSE CHAIN COMPANY, ITHACA, NEW YORK, DETROIT OFFICE, DETROIT, MICH. TITLE: MORSE AUTOMATIC ADJUSTMENT SPROCKET MATERIAL: O.H. STEEL SCALE: FULL SIZE DWN: McIntyre, DATE: 6-11-31 CK{Mr Clark}'D: Wassall, DATE: 6-16-31 PART NUMBER: DO-6135 STAMP: APR 2 1934 | ||