Another cause of oil stains is the use of mineral oils in the lubrication of cotton machinery.
Neat's-foot oil comes from the feet of cattle and is also used in lubrication.
If valve was blocked to open rear port slightly, this would provide for lubrication and the cylinder head need not be loosened.
All engines of this make are provided with an automatic system of lubrication.
First let us give a little attention to the theory of lubrication.
lubrication is a subject that should be studied by every gas-engine user.
lubrication seems to have been a rather constant problem, particularly in the early years.
The purpose of lubrication is to reduce friction between the two surfaces in contact.
In these larger European motors, castor-oil is used largely for lubrication.
Concluding that lubrication was necessary, he leaned over and licked it, acquiring a strong brass taste upon his tongue.
1640s, "act of lubricating," noun of action from lubricate (v.). Earlier were lubifraction (1540s).
1620s, "to make slippery or smooth" (especially by the application of an oil), from Latin lubricatus, past participle of lubricare "to make slippery or smooth," from lubricus "slippery" (see lubricant (adj.)). Related: Lubricated; lubricating. Earlier verb was lubrify (1610s), from Medieval Latin lubrificare.