ted large, special machines for the work, which were too costly for small manufacturers. National Steel Tube Cleaner. This universal combination shear embodies all the best features of the double angle iron shears, besides being a plate and bar shear which can readily be changed into a punch. It… … The new tool weighs but 35 pounds; has a capacity up to 1%4 fit various sizes of pipe, and if one or more of its blades become inches (but in emergency cases will drive 2-inch twist drills with broken by rough usage or wear, they can be readily repaired very satisfactory results) ; spindle speed…
Shipbuilding -- Periodicals · Shipbuilding industry -- Periodicals
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
