Valve Mechanism Silencing Device (Patent No: 521690)

Inventor: Abercrombie, Ian H.

Location: Calgary

Comments: N/A

Description: Issued February 14, 1956

Valve Mechanism Silencing Device

Ian H. Abercrombie, Calgary, Alberta, Canada Application August 27, 1952, Serial No. 635,615

1 Claim

A preloader device for the silencing of the valve
mechanism noise in overhead internal combustion engines, said preloader device consisting of a substantially cylindrical body portion, a concavo-convex head on said body portion, a horizontal flange extending outwardly from said head, the concave portion of said head constituting a cup for receiving the lower end of the associated push rod and a breather hole situated at the bottom of said cup and extending through said head to the interior of said body portion, said preloader device being submerged in an oil bath, the base of said body portion being spaced above the associated cam follower actuating said push rod and spring means reacting between the underside of said flange and laid cam follower whereby said push rod is in contact with the base of said cup.