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).
Parts for a revised 3rd & 4th Synchromesh experimental gearbox.
| Identifier | ExFiles\Box 99\4\ scan0236 | |
| Date | 18th December 1939 | |
| TO. Rm.{William Robotham - Chief Engineer} c. Rm{William Robotham - Chief Engineer}/Grys 428 Ev.{Ivan Evernden - coachwork}18. 12. 39 B. V.{VIENNA} PL. 55 Revised 3rd & 4th Synchromesh Experimental on 4.B.V. Box. 6030.Section. Gearbox & Actuating Gear 6040.Section. 1st & 3rd Motion Shaft. Please receive herewith 2 blueprints of each of the following parts, which have been detailed in accordance with the above scheme, and memo Ev.{Ivan Evernden - coachwork}10/MH.{M. Huckerby} 24.11.39. Section 6030 RG.{Mr Rowledge} 120 DC Operating Fork 1 off Section 6040 RG.{Mr Rowledge} 113 3rd Speed Driven Gear 1 off RG.{Mr Rowledge} 114 3rd & 4th Sliding Piece 1 " RG.{Mr Rowledge} 115 Cone Housing ) RG.{Mr Rowledge} 116 DC. Cone Housing) Alternatives 1 off RG.{Mr Rowledge} 117 Actuating Ring 1 off RG.{Mr Rowledge} 118 Spring (Sliding Piece) 6 off RG.{Mr Rowledge} 119 Locating Pin 3 off The following parts will also be required. Section 6040 .250 Dia Steel Balls (Sliding Piece) 6 off As an alternative, a one piece casting embodying both cones and sleeve has been made. Please note that the slots in the cones are now cast. The 1st Motion Shaft is unaltered, the 3rd Speed Driven Gear RG.{Mr Rowledge}113 can be made from the existing piece GB.4193 and existing cones GB.3959 can be used. Ev.{Ivan Evernden - coachwork} | ||