ainstthe female member E ofthe clutch the upper end ofthe valve spring bears. When the valve is lifted,the pre.ssure of the valvestem key F on the basemember and the corre-sponding pressure of theradial arnxs on the walls ofthe helical slot in the spiralmember, causes the coneclutch to disengage… … held from rotating l)y being firmly pressed again.s^t thecylinder block by the valve spring, the spiral member isnow held from rotating, consequently the radial arms onthe base member, and with them the base member and thevalve itself, are compelled to follow the helical path deter-mined by the…
Automobiles · Aeronautics
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