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).
Standardisation of parts relating to an extra hole in the crank journal and enlarged grooves in main bearings.
| Identifier | ExFiles\Box 115\1\ scan0283 | |
| Date | 19th January 1937 | |
| RR 755B (10H) 88620 12-8-35 W.H.K. 21800 COMPLETED 8.2.37. 19/1/37 BENTLEY STANDARDISATION of PARTS. Date 9.12.36 Description of Parts: EXTRA HOLE IN EACH CRANK JOURNAL OPPOSITE TO EXISTING. GROOVES ENLARGED IN INTERMEDIATE MAIN BEARINGS. X No. 1020. Drawing No. Rm.{William Robotham - Chief Engineer}244. Origin: Big end failure in France. Endurance run at 1/4 load, invariably No.2 or 5 big end giving trouble. Report of Experimental Test. In reproducing failure with Hall's metal big end bearings under special running condition at 1/4 load with improved lubrication and big improvement affected in not siezing. As tested on bench no alteration to oil consumption ensures that Nos. 2 and 5 have some lubrication as other big end bearings. MATERIAL £ s. d.{John DeLooze - Company Secretary} LABOUR £ s. d.{John DeLooze - Company Secretary} CHARGES £ s. d.{John DeLooze - Company Secretary} TOTAL £ s. d.{John DeLooze - Company Secretary} Cost of Old Part - - - Cost of New Part - - - Nett Increase: Negligible. Signature from Cost Dept. that above is correct. G.Rh{R. Hollingworth} 8.1.37. INITIAL DATE REMARKS SG.{Arthur F. Sidgreaves - MD} 5-2-37. Agreed Sg.{Arthur F. Sidgreaves - MD} WORKS. Agreed Hs.{Lord Ernest Hives - Chair} C. 25.1.37. Agreed C. E.{Mr Elliott - Chief Engineer} 20.1.37. Agreed E.{Mr Elliott - Chief Engineer} DA.{Bernard Day - Chassis Design} 21.1.37. Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} 20.1.37. Agreed By.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} 20.1.37. Agreed EP.{G. Eric Platford - Chief Quality Engineer} SFT.{Mr Swift} 20.1.37. Agreed Sft.{Mr Swift} MX.{John H Maddocks - Chief Proving Officer} 19.1.37. Agreed Mx.{John H Maddocks - Chief Proving Officer} HS.{Lord Ernest Hives - Chair} Rm{William Robotham - Chief Engineer} 19.1.37. Agreed Rm.{William Robotham - Chief Engineer} DHC 2.2.37. Agreed DHC. Stamp: J.S. 5 FEB 1937 | ||