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 document for replacing the Michelin jack with a British-made 'Tangye' jack for the 20 HP model.
| Identifier | ExFiles\Box 52\4\ Scan024 | |
| Date | 20th February 1929 | |
| RR 788 REVISED (10H) (D.C. 777-29-2-28) Mᶜ C. Lᵀᴰ X 4491 COMPLETED 24.4.29 STANDARDISATION of CHASSIS PARTS. Date 20.2.29 X No. 4491 Drawing No. Part List Description of Parts. 'TANGYE' JACK FOR 20 HP. Origin. Michelin have ceased to manufacture. Experimental Test Report. Michelin have ceased making jacks. We also wished to use a British made jack. See Hs {Lord Ernest Hives - Chair} /AJLL/LG31.1.29. Road Test Report. Number of tests carried out. A Scrap and replace at all costs, including Chassis already delivered to Customers. B Scrap and replace on Chassis in Works. C Scrap present stock and replace on all CHASSIS not yet handed to test. D Use existing stock Alteration effective on future Chassis. Weight of Old Part. Weight of New Part. Difference per Car. Cost of Old Part. £0-10-10 Cost of New Part. £1-5-0 Difference per Car. £0-14-2 Increase Signature from Cost Dept. that above is correct. GJR 22/4/29. W. Ent. 22/4/29 Cost of Parts in Works which will be scrapped if commenced on :- Series.......£...... Series.......£...... Series.......£...... INITIAL DATE REMARKS S.G. 24-4-29 Agreed. Sg. {Arthur F. Sidgreaves - MD} I have not seen this but trust to Test Dept. Judgement and Sales approval. R. {Sir Henry Royce} 4.3.29 WOR. {Arthur Wormald - General Works Manager} 20.2.29 AGREED. Wor. {Arthur Wormald - General Works Manager} RG. {Mr Rowledge} 1.3.29 AGREED. RG. {Mr Rowledge} DA. {Bernard Day - Chassis Design} 21.2.29 AGREED. DA. {Bernard Day - Chassis Design} BY. {R.W. Bailey - Chief Engineer} 21.2.29 AGREED. BY. {R.W. Bailey - Chief Engineer} EP. {G. Eric Platford - Chief Quality Engineer} 20.3.29 AGREED. EP. {G. Eric Platford - Chief Quality Engineer} E. {Mr Elliott - Chief Engineer} 25.2.29 AGREED. E. {Mr Elliott - Chief Engineer} PN. {Mr Northey} CWB. HS. {Lord Ernest Hives - Chair} 20.2.29 Agreed. Hs. {Lord Ernest Hives - Chair} STAMPS: SO. CHASSIS; Received Chassis Dept 23 FEB 1929 | ||