Automatic Feeder for Lubricating Materials
An automatic lubrication system often referred to as a centralized lubricator comprises a controller, pump, reservoir, metering valves, fittings and feed lines. It typically delivers a controlled amount of lubricant in the forms of grease or oil to multiple, specific locations on a machine while the machine is operating at specific times from a central location.
Government Printing Office The Official Gazette of the United States Patent Office (Washington, DC: Government Printing Office, 1895)
Courtesy the private collection of Roy Winkelman