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Laboratory tests on gasoline at a chemical and physical research laboratory in the United States.
Men conduct various laboratory tests on gasoline in the United States. View of a laboratory setting with test tubes, beakers, and other equipment. Tests conducted at the chemical and physical research laboratory to increase the yield, develop and improve distillation processes. Men perform the tests. Man stands near miniature stills for conducting experiments. Man draws liquid from a cask.
Storage and filling of gasoline in refineries, storage tanks and barrels in United States.
Storage of gasoline for meeting the demands in United States. Gasoline is stored in refineries. The gasoline reached to the consumer from storage tanks. Men fill barrels from gasoline. The barrels are filled through automatic filler.
Shows preparation of steel rod and process for drawing steel wires at a wire manufacturing plant in the United States.
A segment on manufacture of wire products, from a documentary titled ' The Story of Steel'. Shows the preparing of rod for drawing into wires. In the wire manufacturing factory, the wires are dipped into acid bath to remove scale, then a water bath in a giant wooden tub removes acid from the wires. The rod is carried slowly through a spray of water to deposit a fine oxide coating which is of benefit when wire is drawn. A lime bath neutralizes the acid and lubricates the wires. Lime coating is then baked. Workers working in a wire drawing room in a steel wire mill. End of a wire is sharpened on a grinder to point the end. Worker threads wire through die and onto large receiving spool, then cold rods are drawn through a hole in a solid die which reduces their diameter and increases their length. The spinning spools fill with wire rapidly. For safety of workers, the machine automatically stops after sensing a kink in the wire. The kink catches in a loop on a brake handle, and activates the brake.
Shows galvanization of wires in a steel wire mill in United States.
Labor saving devices handle wire rolls in a wire mill in United States. Shows galvanization of wires. Wires are first dipped in a bath of molten lead. Entirely closed chamber of an acid bath apparatus protect the workers from hazardous fumes. A bath of molten zinc galvanizes the wires. Wires are rolled on reels.
Woven wire fences being manufactured in a steel wire mill in United States.
Shows woven wire fences being manufactured in a steel wire mill in United States. Shows production of American fence and National fence. Man plants an American fence on steel posts in a farm.
Production of barbed wire in a steel wire mill in United States.
Shows the production of barbed wire in a steel wire mill in United States. Animations show how barbs are formed over the wire. Worker rolls the barbed wire over a reel.