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).
Letter from Parsons Engineering Co Ltd regarding modifications to Mr. E.R. Hall's engine for marine service.
| Identifier | ExFiles\Box 90a\6\ Scan192 | |
| Date | 16th June 1938 | |
| TELEPHONE Nos { SOUTHAMPTON 4662. LONDON, ABBEY 2561. CODES { BENTLEY'S. 174. 262. THE PARSONS ENGINEERING CO LTD MARINE DEPARTMENT PROPULSION SETS REVERSE GEARS REDUCING GEARS STERN GEARS SILENCERS INTERNAL COMBUSTION ENGINES CONTRACTORS TO THE ADMIRALTY, WAR OFFICE, AIR MINISTRY INDIA OFFICE, CROWN AGENTS and to FOREIGN GOVERNMENTS INDUSTRIAL DEPARTMENT DIRECT COUPLED PLANTS FOR LIGHTING & POWER PUMPING, WELDING, AIR COMPRESSING AND TRACTION TELEGRAMS: { 'PARSENGCO', SOUTHAMPTON. LONDON OFFICE: 3, VICTORIA STREET, WESTMINSTER, S.W.1. TOWN QUAY WORKS SOUTHAMPTON ENG. Your Ref Our Ref CWG/DC 16th June, 1938. Messrs. Rolls Royce, Ltd., DERBY. Handwritten: Please see attached reply OK. RH{R. Hollingworth}/SWdL{Len H. Swindell} Stamp: RECEIVED 17 JUN 1938 Dear Sirs, MR. E.R. HALL'S ROLLS ROYCE ENGINE. With reference to the above engine which we are arranging for marine service, it has been decided to drive the water pump for cooling the heat exchange unit by means of the fan belt fitting the pump on the bearers in the boat with a drive approximately horizontal. As Mr. Hall wishes to reduce the pump speed to 2/3 engine speed it is necessary to fit a pulley on the pump about 8 1/4" O.A. diameter if we are to use the standard pulley which is on the engine. We wish to avoid upsetting any standard parts of your engine if it is possible, and have hesitated therefore to replace the present engine pulley with a smaller one, but if there is a serious difficulty in accommodating the large pulley on the pump we may have to consider it, and to avoid any dismantling of the engine at the forward end we should be very much obliged if you could let us have a drawing showing the manner in which your crank shaft pulley is fitted. If it is a perfectly plain and independent component which does not affect the functioning of any of your standard fittings at that end of the engine we might | ||