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 of a clutch friction disc spring.
| Identifier | ExFiles\Box 129\1\ scan0097 | |
| Date | 25th September 1936 | |
| DR. NO. /100106-4 1/16 SPRING STEEL TEMPERED R.{Sir Henry Royce} -1/8 1/32 R.{Sir Henry Royce} 1/10 5/32 -20° - 5° 1/64 PUNCH. 2 13/16 8 REQ'D PER SET 1/16 TRUE R.{Sir Henry Royce} 5/16 8 3/8 2 3/32 R.{Sir Henry Royce} 2 21/32 R.{Sir Henry Royce} LONG MANUFACTURING CO. # FORM S. ON MROF TOOLS MUST BE STAMPED WITH "T" NO. & PARTS WITH "T" NO. & MAT'L LIMITS ON ALL FRACTIONAL MACHINE DIMENSIONS ± .010 REMOVE ALL PROJECTING EDGES AND SHARP CORNERS THE CLEVELAND GRAPHITE BRONZE CO. CLEVELAND, OHIO CLUTCH FRICTION DISC SPRING SCALE: Full DATE: 9-25-36 DR. FH APP. CK.{Mr Clark} MK APP. DR. NO. /100/06-4 4 OF 4 | ||