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 with diagrams and specifications for Oldsmobile Spring Shackles.
| Identifier | ExFiles\Box 126\1\ scan0035 | |
| Date | 31th August 1937 guessed | |
| Ex I 193, ENLARGED VIEW OF THREADS ON MALE MEMBER, 11 THREADS PER INCH, THREAD CORRESPONDS TO 11/16 UNITED STATES STANDARD THREAD, THESE FIGURES REPRESENT TOTAL CLEARANCE BETWEEN SLEEVE AND SCREW., EXTERNAL THREAD ON SLEEVE, TOP DIA = .880, ROOT DIA = .832, 11 THREADS PER INCH., OLDSMOBILE SPRING SHACKLES, ROLLS-ROYCE, LTD., PRINT ROOM, DERBY, 2.437, 2.187, .437, .529 DIA., .568 DIA., .662 DIA., .6864 DIA., .650 DIA, .595 DIA., .013, .010 | ||