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).
Visit to Messrs. Dennis Bros. Ltd. in Guildford regarding the supply of bearings for a 6 1/2-litre, 4-cylinder oil engine.
| Identifier | ExFiles\Box 116\1\ scan0005 | |
| Date | 10th November 1937 | |
| Es. from Rm{William Robotham - Chief Engineer}/Mths.{Reg Matthews} 1020a c. By.{R.W. Bailey - Chief Engineer} c. Da.{Bernard Day - Chassis Design} c. Lr.{Mr Ellor} c. HPS.{Horace Percy Smith - Experimental Factory Mgr} c. Rm{William Robotham - Chief Engineer}/Std. Rm{William Robotham - Chief Engineer}/Mthel/R.10.11.37. REPORT ON VISIT TO MESSRS. DENNIS BROS.LTD.(GUILDFORD) This visit was made along with Mr. Perry of High Duty Alloys, and the Dennis Co's officials interviewed were - Messrs. Poppe and Milne. The object of their visit was to determine their requirements and to obtain as much information as possible prior to supplying them with Hall's metal bearings. They require bearings for a 6 1/2-litre 4-cylinder oil engine governed to run at 1800 r.p.m. maximum, and we have agreed to supply them with two sets of connecting rod bearings and main bearings. We suggested that they sent the rods to the Works and that we should fit the bearings, in addition to which we shall supply rough machined main bearings for them to fit. We shall leave .020 in the bore of the connecting rod bearings and the Dennis people will diamond bore to finished size. We have obtained as much information as possible relating to lubrication etc., and these will follow in a later report when we have completed our data chart; some important information such as flow of oil from pump we have not been able to get since they have not yet done tests to determine the actual flow, we have, however, the dimensions of their pump. Further details. The engine upon which these bearings are to be used is new type, the main details being as follows:- (a) 4-cylinder oil engine - 6 1/2-litres capacity. (b) bore 4.625", stroke 5.900. | ||