. Automotive industries . nclosed and acts as a conveyor for the oil, lifting thelatter into troughs whence some of it runs by gravitythrough an adjustable drip valve into the cylinder andso by suction to the crankcase on the up-stroke of thepiston. This arrangement has the advantage of keepingall the oil in the neighborhood of the engine and intro-duces no extra parts, while enabling the magneto chainto be run in a bath of lubricant. Engine Starting The foot-operated lever (kick starter) is almost uni-versal where any means of engine starting other thanpushing the machine is provided; Enfield
. Automotive industries . nclosed and acts as a conveyor for the oil, lifting thelatter into troughs whence some of it runs by gravitythrough an adjustable drip valve into the cylinder andso by suction to the crankcase on the up-stroke of thepiston. This arrangement has the advantage of keepingall the oil in the neighborhood of the engine and intro-duces no extra parts, while enabling the magneto chainto be run in a bath of lubricant. Engine Starting The foot-operated lever (kick starter) is almost uni-versal where any means of engine starting other thanpushing the machine is provided; Enfield is one of iso-lated examples having a handle, while Rudge is uniquein having pedalling gear for starting the motor—notfor moving the machine. Kick starters have toothedquadrants, which mesh when operated with a pinion; thelatter is mounted on a quick thread and has a faceratchet drawn into engagement with a ratchet on agear set wheel when rotation occurs. 1380 Clutches AUTOMOTIVE INDUSTRIES THE AUTOMOBILE June 23, 1921. Ninety-five per cent of the clutches are of the plate ordisk type. In those used for engines of small power, inlightweight machines, for instance, the single-drivenplate pattern prevails with cork inserts, this being thetype embodied in Sturmey-Archer two-speed gearsets,but with engines over 3 hp. the vast majority of clutchesare of the multi-plate type, 90 per cent of these runningdry with fabric friction surfaces against metal disks, theremainder being metal to metal and running in oil. Clutch control by hand occurs in the vast majority ofmachines, approximately 85 per cent being so equipped,but in quite a number of instances where two-speedgearsets are used no friction clutch is provided, the gearchanges from low to high being effected whilst thethrottle is closed or the exhaust valve is momentarilyheld off of its seating by the usual lifting device. This Forks operating dogclutches of B. S. A. gear-set are moved by pins onrotary shaft working inslot of fo
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
