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Aviation History
1928
1928 - 1131.PDF
DECEMBER 6, 1928 The Bristol "Jupiter VI ": Diagrams of oil pumps. SURPIUS OIL. BTE-PASSEP BOCK TO SUCTION SPE OF FEED PUMP TO PRESSUREGAUGE B A starter distributor. In the later types of " Jupiter" thereis an external oil pipe which supplies the upper part of the gas starter distributor.As regards the scavenger system, surplus oil drains from the front main crankshaft bearing through holes in the fixedinternal gear plate into the front cover, and from there through a passage communicating" with the front "leg" ofthe external sump under the engine The oil from the interior of the crankcase drains, through holes in the bottom,into the rear " leg " of the sump. At the lowest point of the rear wall of the crankcase there is a hole through whichdrains the oil from the various assemblies on the rear cover. The Oil Pumps The two oil pumps, pressure and scavenger, are of thegear type, and form one unit, housed in a chamber in the rear cover of the engine. This chamber communicates withthe rear end of the hollow crankshaft. Formed integrally with the rear cover are two horizontal cylindrical filter chambers placed one on each side of the pump unit, that onthe right housing the scavenger filter, and that on the left the pressure filter. The outer ends of the filter chambers areclosed by hollow screwed plugs, and to these are attached the niters themselves.The pump unit is built up in sections clamped together between end plates by four long bolts, and the rear end platecarries a pressure relief valve. The aluminium gears which form the pumps comprise driving pinions and idler pinions^and are mounted on hollow parallel spindles. The upper is the drive spindle, and has formed on it two grooves engagingwith dogs formed in the driving gears of both pumps. The difference in capacity between pressure pump and scavengepump is obtained by making the pinion of the latter longer than the former. The idler spindle (the lower) is of largerdiameter than the driver spindle, and serves to convey the oil from the pressure pump to the crankshaft. The sectionalviews accompanying this article should explain the arrange- ment. MR. SAMUEL WHITE, JP. WE regret to announce the death of Mr. Samuel White, J.P.,Chairman of the Bristol Aeroplane Company Ltd., Bristol. He died on November 29 at his residence at Clifton Down,Bristol, at the age of 67 years. He became a member of Bristol Stock Exchange in 1889and his success was closely bound up with that of his elder brother, the late Sir George White, Bart. In many of theimportant financial transactions in which Sir George was conspicuous, Mr. White bore his share of the responsibility.The case of the Bristol Tramways and Carriage Co. affords an illustration. When Sir George became managing directorin 1894, Mr. Samuel White was appointed secretary-, and six years later, upon Sir George being made chairman of thecompany, he was followed in the office of managing director by his brother.When Sir George died suddenly in 1916 Mr. Samuel White succeeded him as chairman, as he did in the case of theBristol Aeroplane Co., Ltd., the Imperial Tramways, Western Wagon and Property Co., and the Main Colliery Co. Bristolowes its first-class tramway, motor-bus, and charabanc services to the energy, ability and foresight of those twogentlemen. They were pioneers in the adaptation of electn- city to road traction, and in the use of the motor engine.Their operations were not confined to Bristol and they ren- dered equally valuable service to London and other placesas well. When aviation was in its infancy, Sir George White realisedthe need of British capital being freely employed in experi- mental work if this country was to hold its own on a matterpossessing such far-reaching possibilities. Mr. Samuel White, as in earlier undertakings, gave his brother loyal supportand had his share in the formation of the British and Colonial Aeroplane Co., with headquarters at Filton. Bristol machinesspeedily gained a world-wide reputation, and thanks to the energy displayed, England took a foremost place in thedevelopment of aviation, while Bristol was given a valuable advertisement at a time in its history when it was most needed.Only a rich man could have embarked upon such an enterprise. The passing of Mr. Samuel White will be deeply regrettedby all who were associated with him in public work, and even more by those who were intimately associated with him inhis private efforts to promote the welfare of his fellows. His generosity to the Royal Infirmary- at a critical periodin its history is well known. Owner-Pilot and Goal-KeeperMiss BROWNE, the private owner pilot of an Avro" Avian " kept goal in a hockey match for the Lancashire Women against Middlesex at Twickenham on December 1.She intended to fly down for the match, but fog in the Midlands prevented her. 1037
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