returns to thecrankcase and (2) to operate a vertical rod connectedto an oil circulation indicator arranged on the dash-board. No spring has been found necessary to back thisplunger valve, its own weight serving to maintain theoil pressure in the circulation system at the desiredmaximum. From the… … (To the Left) —Standard overhead valve gear, showing details of forced lubrication. (Center)Comblned inlet flangeand water outlet elbow on Standard cylinder head. (To the Right)—Standard combined gear pump and oil filter. 952 AUTOMOTIVE INDUSTRIESTHE AUTOMOBILE May J, 1921
Automobiles · Aeronautics
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![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer04inte-337-141.webp)
