vided, to be used in con- nection with the National lubricator or as an independent sight feed, as desired. It is, how- ever, not essential to the effective working of the lubricator. The device, as illustrated, is very simple, the glass being of large diameter with an automatic valve which shuts… … the lubrication is properly looked after. All parts can be lubricated while the engine is in motion. The link, it will be noticed, is of the cator is also made in Duplex form, as shown in double bar type, and the entire design has been the illustration on the opposite page. It can be given a great…
Shipbuilding -- Periodicals · Shipbuilding industry -- Periodicals
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
