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, replacing helical gears with ground gears in the gearbox to improve silence.
| Identifier | ExFiles\Box 172\1\ img017 | |
| Date | 26th February 1923 | |
| R R 755 (S H) (S.H. 187, 20-8-20) G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 3807. STANDARDISATION of CHASSIS PARTS. COMPLETED 6.3.23. Date 26.2.23. X No. 4543 Description of Parts. Ground Gears in place of Helical for continuous gears in Gear Box. Handwritten: P at Le CanadelHenry Royce's French residence Origin. To improve silence. Experimental Test Report. We are having consistent success with the Ground Gears in 20 and 40/50 HP. Gearboxes. With the helical side shaft gears, these are run in with a cutting powder - with the ground side shaft gears we can avoid entirely the use of cutting powder on the gearbox. Road Test Report. Fitted to 3-G-11 " " 5-G-11 Both gear boxes are very good for silence. Run 7,000 miles. Signature of Exp. Dept. that above is correct. E.{Mr Elliott - Chief Engineer} Hives. Weight of Old Part. Cost of Old Part. £3. 7. 9 Weight of New Part. Cost of New Part. £2. 10. 0 Difference per Car. £ 0. 17. 9 saving. Signature of Mr. DELOOZE that above is correct. MY/JW 28.2.23. SIGNATURES Mr. JOHNSON, DATE 6.3.23, REMARKS Agreed. CJ. Mr. R.{Sir Henry Royce} Johnson, DATE 6.3.23, REMARKS Agreed. BJ. Mr. ROYCE, DATE 12.3.23, REMARKS Agreed. FHR. Certainly adopt these as soon as ever convenient, it will pay to scrap the helical ones if they require 'Running in' with cutting powder. Mr. WORMALD, DATE 26.2.23, REMARKS Agreed. Wor.{Arthur Wormald - General Works Manager} Mr. HARRINGTON (struck through) Mr. Rowledge., DATE 26.2.23, REMARKS Agreed. Rg.{Mr Rowledge} Mr. DAY, DATE 28.2.23, REMARKS Agreed. Da.{Bernard Day - Chassis Design} Mr. BAILEY, DATE 26.2.23, REMARKS Agreed. BY.{R.W. Bailey - Chief Engineer} Mr. PLATFORD, DATE 26.2.23, REMARKS Agreed. EP.{G. Eric Platford - Chief Quality Engineer} Mr. NORTHEY, DATE 27.2.23, REMARKS Agreed. PN.{Mr Northey} 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. C Scrap present stock and replace on all Chassis not yet handed to test. D Use existing stock. Alteration effective on future Chassis. Cost of Parts in Works which will be scrapped if commenced on:- Series...£... Series...£... Series...£... Storekeeper advised re above: Storekeeper's Signature. STAMPS: '20 H.P.', 'CHASSIS' | ||