Edison has strong convictions on the liberal use of lubricants, but argued that in the ordinary oiling of machinery there is great waste, while much dirt is conveyed into the bearings. 弗兰克·刘易斯·戴尔.爱迪生的生平和发明.
Lubricants of all kinds had been and are used; but Babbitt's invention was an anti-friction metal. 威廉·亨利·杜利特.世纪发明.