Lubrication – Automobile crank and gear case service
Patent
1978-10-10
1980-02-26
Brown, David H.
Lubrication
Automobile crank and gear case service
184 45R, 301108R, F16N 1104, B60B 2700
Patent
active
041901339
ABSTRACT:
A wheel bearing pressure lubricator comprising a hollow body having an open end connected with a wheel hub and forming a closure cap therefor, a piston sealingly and slidably mounted in the body and a spring member urging the piston toward the hub and bearings therein and constantly applying a positive pressure on the lubricant packing the hub. A lubrication fitting for filling the lubricator is attached to the body and an overflow aperture is disposed to the sidewall of the body at a point adjacent to the hub filled position of the piston for relieving excess lubricant pressure and a piston position indicator providing visual indication when the piston is in hub filled position and when the piston is in no pressure position at which the piston ceases to apply pressure to the lubricant in the hub.
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