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).
Drawings and instructions for a B.60 crankshaft assembly using Welsh washers and a Humber damper.
| Identifier | ExFiles\Box 124\2\ scan0144 | |
| Date | 24th April 1940 | |
| Ru/CTS.{C. Trot Salt - Carburation}17/ML 25-4-40 To Rm.{William Robotham - Chief Engineer} c.c. to Ev.{Ivan Evernden - coachwork} 1044 D 1116 Rm{William Robotham - Chief Engineer}/HH.2/JH.24.4.40. B.60 Crankshaft. PL.72 Integral Balance Weights. Section 5010. Please receive herewith 4 prints of the following drawings detailed in accordance with the above scheme. RE.869 Crankshaft. (3) RE.874 Welsh Washers Journal. (3- RE.875 " " crank pin. Please instruct as required together with standard and existing parts from Exp. L.O.P. herewith. We have assumed a recess dia. for the fitting of standard "Ford Welsh washers" and in order to prevent any trouble on the finished crankshaft it would be perhaps advisable for the exptl. dept to make a test case. Exptl. Dept please note. This shaft has been detailed to be used only in conjunction with the Humber type damper. Rm{William Robotham - Chief Engineer}/HH. | ||