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).
Blueprint for a fan driving pulley.
| Identifier | ExFiles\Box 125\1\ scan0314 | |
| Date | 25th September 1931 | |
| TITLE BLOCK: CADILLAC MOTOR CAR CO. DETROIT, MICHIGAN PART NAME: PULLEY-FAN DRIVING. MATERIAL: G.M.C. #1025 STEEL. DRAWING No.: 894090 DRWN: STEINMETZ TR.{Capt. F. W. Turner - Finance}: BURGESS CK.{Mr Clark}: P.J. SMITS APP.: STEWART DATE: 9-25-31 FORM 280-G CHANGE RECORD TABLE: C | 7-25-33 | HEATTREAT NOTE REMOVED | CR{Mr Cra???ster / Mr Chichester} 3300 B | 7-25-33 | WAS G.M.C. # 1035 STEEL | CR{Mr Cra???ster / Mr Chichester} 3300 B | 4-13-33 | WAS .3479 : .3503 P.D. | CR{Mr Cra???ster / Mr Chichester} 4950 A | 1-12-33 | WAS 1/32 R.{Sir Henry Royce} | CR{Mr Cra???ster / Mr Chichester} 1474 ANNOTATIONS: - THESE FACES MUST RUN TRUE WITH AXIS WITHIN .001 INDICATOR READING AT 4 1/2 DIA. - THIS PORTION TO BE SMOOTH AND FREE FROM GRINDING MARKS. - THIS DIA. TO BE CONCENTRIC WITH CRANKSHAFT HOLE WITHIN .003 TOTAL INDICATOR READING. - ASSEMBLY PIN WITH 3/32 CHAMFER AS SHOWN. - AXES OF PINS MUST BE PARALLEL WITH AXIS OF CRANKSHAFT HOLE WITHIN .002 IN A LENGTH OF 1/4. - CUT FROM FLUSH TO .005 DEEP - WELD SECURELY. - DRILL - 5/8 DEEP - FOUR HOLES. - .5207/.5217 DIA. REAM SMOOTH - 1/4 DEEP. - 'Q' (.332) SPEC. DRILL - 11/16 DEEP. - 3/8 - 24 AMER. THD. - 1/2 DEEP. - B.3372/B.3512 P.D. - CLASS #2 - CHAMFER 45° TO 3/8 DIA. - TWO HOLES EQUALLY SPACED. - 1 1/2 DIA. THIS CUTTER MUST CLEAR 1 DIA. AROUND PINS. - DRILL BEYOND THIS RADIUS FOR BALANCE - 1/16 R.{Sir Henry Royce} - FINISH ALL OVER. - CHECK 1/10 OF EACH SHIPMENT FOR CHEMICAL ANALYSIS - DECIMAL DIMENSIONS MUST BE MAINTAINED -- .010 EACH WAY CAN BE ALLOWED ON DIMENSIONS NOT OTHERWISE SPECIFIED. - STAMPED TEXT: REQUISITIONED FOR PRINT BY 24 1996 - BOTTOM LEFT REFERENCES: S.K. 881939-882096, XC-63149, 10-6-33, 4-3-33, 2-3-33 DIMENSIONS & SPECIFICATIONS: - 8 1/8 DIA. OF ROLLS. - CHAMFER 45° 1/16 ON FLAT. - CHAMFER 45° 1/32 ON FLAT. - CHAMFER 45° 1/64 ON FLAT - MAX. - CHAMFER 45° TO 2 1/16 DIA. - 5/8 DIA. OIL HOLE. - 5/8 DRILL. FOUR HOLES. - .250/.252 BOTH KEYWAYS. - 8 7/8 DIA. - 4 5/8 DIA. - 4.576 DIA. - 4 3/8 DIA. - 4 1/8 DIA. - 2 11/16 DIA. - 1 3/4 DIA. - 2 5/8 DIA. B.C. - 3 1/8 / 3 1/4 DIA. - 5 15/16 DIA. HOLLOW MILL. - 1.9985 / 2.0005 DIA. - 1.2487 / 1.2495 DIA. REAM - 1.365 / 1.369 - 894030-PIN. - .566/.576 - .925/.929 - .338/.348 - .010/.020 - .030/.050 R.{Sir Henry Royce} - 2.276/2.286 - .8634 - 13/16 - 3/32 R.{Sir Henry Royce} - 34° - 20° - 30° - 45° - 30°±5' - 180°±5' - 270°±5' - 9/16 | ||