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 chassis parts, specifically the grinding of pistons for 40/50 HP and 20 HP chassis.
| Identifier | ExFiles\Box 148\3\ scan0024 | |
| Date | 4th October 1923 | |
| R.R. 755 (10H) (SL 72 18-7-23) MP 274954s. X2748. Completed 31.10.23 STANDARDISATION of CHASSIS PARTS. Date 4.10.23. Description of Parts. 40/50 HP. AND 20 HP. CHASSIS. GRINDING OF PISTONS. Origin To facilitate production. Experimental Test Report. At present all our pistons are ground with clearance on the sides. It has been found that if the side clearance is ground tapered, it avoids hand-fitting. Road Test Report. Adopted by Springfield. We have tested pistons ground in a similar manner and recommend we adopt. Box X No.4224 Drawing No. Part List A Scrap and replace at all costs, including Chassis already delivered to customers. B Scrap and replace on Chassis in works. (X marked in this box) 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. £ Cost of New Part. £ Difference per Car. £ 9/10d. saving on fitting. Cost of Parts in Works which will be scrapped if commenced on:— Series......... £......... Series......... £......... Series......... £......... Signature of Mr. De LOOZE that above is correct. My/JW 29.10.23. SIGNATURES DATE REMARKS MR. JOHNSON 31.oct.23 agreed B. Johnson MR. B. JOHNSON 31.10.23 agreed MR. ROYCE 20.10.23 Agreed. FHR. MR. WORMALD 4.10.23 Agreed. Wor.{Arthur Wormald - General Works Manager} MR. ROWLEDGE 10.10.23 Agreed. Rg.{Mr Rowledge} MR. DAY 10.10.23 Agreed. Da.{Bernard Day - Chassis Design} MR. BAILEY 4.10.23 Agreed. BY.{R.W. Bailey - Chief Engineer} MR. PLATFORD 4.10.23 Agreed. EP.{G. Eric Platford - Chief Quality Engineer} Springfield also anneal and slightly larger and more eccentric grinding. ref. EP{G. Eric Platford - Chief Quality Engineer}14/H4.10.23. MR. ELLIOTT 15.10.23 Agreed. E.{Mr Elliott - Chief Engineer} MR. NORTHEY 15.10.23 Agreed. PN.{Mr Northey} MR. HIVES 30.10.23 Agreed. E.Hives. | ||