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).
Alterations to the 20HP slipper flywheel to prevent the breakage of spring bolts.
| Identifier | WestWitteringFiles\N\2July1925-September1925\ Scan49 | |
| Date | 24th August 1925 | |
| TO <strikethrough>DM.{D. Munro}</strikethrough> FROM E.{Mr Elliott - Chief Engineer} Copy to - <strikethrough>CS.</strikethrough> HS.{Lord Ernest Hives - Chair} [Faint Stamp: ORIGINAL] E2/M24.8.25. 20HP. SLIPPER FLYWHEEL. (5300) We send you herewith drawing LeC.2126., shewing the 20HP. slipper flywheel made with 4 strong dowel pins dowelling one half of the flywheel to the other half. The object of this alteration is to prevent breakage of the spring bolts should one of the flywheels become galled. At the same time the spring bolt has been slightly modified to provide more clearance around the stem, and it is important to ensure also that sufficient clearance exists between the springs and the counterbores in the rear flywheel to avoid the trouble of bolts breaking in future. E.{Mr Elliott - Chief Engineer} [Circular Stamp: RECEIVED Hs.{Lord Ernest Hives - Chair} 29 AUG 1925] | ||