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 report for push rods in .4 carbon steel.
| Identifier | ExFiles\Box 171\5\ img082 | |
| Date | 7th December 1938 | |
| RR 755A (10H) (49968) 19/10/37 C.E.Co. COMPLETED DATE 28.4.39. STANDARDISATION OF PARTS Date Issued: 7.12.38 Sheet No.: W.23. Drg. No.: EB.4312. L.O.P.S. Description: 25/30H.P.x WRAITH PUSH RODS IN .4 CARBON STEEL. Purpose: Reduced cost. Brief Report and Remarks: Has run satisfactory without any measurable wear throughout 20 hrs. endurance and 18,000 miles on 8.B.V. Unmachined externally and matches rocker finish. Not ground or lapped at the spherical ends, represents a saving of 10/- per set of 12. The forgings for the above obtained from the Belgrave Engineering Co. When recommended for Introduction: Report References: By: Rm{William Robotham - Chief Engineer} Da{Bernard Day - Chassis Design} Mx{John H Maddocks - Chief Proving Officer} Old Parts: Material 10s 6d, Labour 3s 1d, Burden 5s 5d, Total 19s 0d New Parts: Material 4s 0d, Labour 2s 7d, Burden 4s 6d, Total 11s 1d Decrease in Cost £0. 7. 11. G/R/ 20/2/39. Cost of Tools £ NIL. Production Position and Comments: Pushrods in .4 carbon steel to reduce cost have been instructed for the 1st. chassis in 'C' series. No scrap or Tool cost is involved and there is a decrease in Factory cost of /11d. per chassis. RHC.{R. H. Coverley - Production Engineer} Authorisation to Proceed. Sg.{Arthur F. Sidgreaves - MD} Signature Date 26/4/39 Hs.{Lord Ernest Hives - Chair} Signature Date 26/4/39 Introduce on the ... Chassis in ... Series. | ||