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).
Modifications for Bentley brake drum fastenings.
| Identifier | ExFiles\Box 84\2\ scan0061 | |
| Date | 23th December 1933 | |
| To Mr. Ev.{Ivan Evernden - coachwork} from Da.{Bernard Day - Chassis Design} c. Mr. E.{Mr Elliott - Chief Engineer} Hs.{Lord Ernest Hives - Chair} HPT. [Handwritten]: GRY{Shadwell Grylls} x206 Da.{Bernard Day - Chassis Design}2/HP.23.12.33. [Handwritten]: See me # Bentley Brake Drum Fastenings. ---------------------------- Herewith are N.Sch's: [Handwritten in margin]: Instruction to 4SIV N. Sch.3920 shows a modification immediately applicable, viz. the substitution of bolts for the present studs. The existing holes are opened out and in the case of the front drums, the next rib is gashed opposite the holes to pass the bolt. This is not necessary on the rear brake drums. In addition to the superior driving soundness of the bolts it should be more possible to rivet them up effectively. N. Sch.3916 shows a scheme suggested for future, .250" dia. bolts being substituted for 2-BA, existing pieces being modified only as regards the pitch circle dia. and No. of bolts. Da.{Bernard Day - Chassis Design} | ||