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 proposal for automatically operated radiator shutters using a Smiths 'Calorstat'.
| Identifier | ExFiles\Box 171\1\ img236 | |
| Date | 25th August 1930 | |
| RR 759 REVISED (10M) (DG 348 19-7-29) BM. ORIGINAL COMPLETED 11.2.31. STANDARDISATION of CHASSIS PARTS. Date: 25.8.30. No. 3499 Description of Parts: SHUTTERS OF RADIATOR OPERATED WITH SMITHS "CALORSTAT". Origin: Radiator shutters automatically controlled. To do away with hand control. Drawing No. 2799. Part List Experimental Test Report: Fitted to 23-EX and 24-EX, shutters operated O.K. but require to be free. Road Test Report: Fitted to 23-EX and 24-EX, ran 10,000 miles. The shutters have automatically operated and closed and kept the water temperature satisfactory throughout the tests. A considerable improvement to the hand controlled. Decision Box: 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: £ Included under Cost of New Part: £ Sheet No. 7500 / 7250/7260. Difference per Car: £ Cost of Parts in Works which will be scrapped if commenced on: Series....£...... Series....£...... Series....£...... Signature from Cost Dept. that above is correct. G/RD. 26.1.31. G.{Mr Griffiths - Chief Accountant / Mr Gnapp} 29.1.31. Wor.{Arthur Wormald - General Works Manager} INITIAL | DATE | REMARKS BJA Sg.{Arthur F. Sidgreaves - MD} | 30.1.31. | Agreed Sg.{Arthur F. Sidgreaves - MD} R.{Sir Henry Royce} | 29/8/30. | Agreed. IHR, have suggested some modifications in the phosphorbronze & mountings of the lever bearing to make the whole of light bearings then-liable to accept. jgr? (memo) WOR.{Arthur Wormald - General Works Manager} | 26.8.30 | RG.{Mr Rowledge} | 26.8.30 | DA.{Bernard Day - Chassis Design} | 28.8.30 | Agreed Da.{Bernard Day - Chassis Design} BY.{R.W. Bailey - Chief Engineer} | 26.8.30 | Agreed BY.{R.W. Bailey - Chief Engineer} EP.{G. Eric Platford - Chief Quality Engineer} | 25.8.30 | Agreed. Very desirable feature. Must instruct production "to be free". EP.{G. Eric Platford - Chief Quality Engineer} E.{Mr Elliott - Chief Engineer} | 3/9/30 & 28.8.30 | Agreed CE PN.{Mr Northey} | 28.8.30 | Agreed that some such scheme is most desirable, but its successful operation so much depends CWB. | | Agreed on all friction being within the limit; C. have we any proved and settled scheme from this point of view? HS.{Lord Ernest Hives - Chair} | | Agreed. | ||