conveniently ex- press in a simple manner the particular quality of finish he wants on any surface of a machine part. Portsmouth, Va. _ PETER PETROVSKY. Socket Wrench Crank Quite often one meets with a job that requires the re- moval and replacing of many nuts of the same size. Much time can be… … have a little device that is equal to a helper for this work. A block of wood is used to build up the distance under the spring when not possible to set it directly against a machine part. The rod in the socket wrench brings up against the casting or adjacent part of the machine, thus holding the…
Shipbuilding -- Periodicals · Shipbuilding industry -- Periodicals
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
