The testing of oil for its lubricating efficiency in Indiana. Man performs the 'viscosity test' of the lubricating oil in a laboratory. This test measures the time required for a fixed quantity of oil to flow through an opening of certain size , at a predetermined temperature. Three test tubes on table with light, medium and heavy oil having low, medium and high viscosity respectively.
A man determines the carbon forming tendency of oil in Indiana. This is done through actual tests on a motor. A man collects the carbon from the motor and weighs it. Test tubes on table contain different oils to determine which oil forms what amount of carbon. Test tubes of oil number 1, 2, 3 and 4 on the table and the amount of carbon formed by them.
Men work in a fully-equipped and well managed laboratory in Indiana, United States. Equipment needed for conducting the tests in the laboratory. Winter operation checked in a cold room. Testing of aviation products. An airplane parked on the air base. Transparent glass bearing to test viscosity of oil. Drops of dyed glycerin with oil to make the action of lubricant visible. It helps in the study of partial lubrication. After passing the tests the lubricating oil is shipped into tank cars, barrels and cans for transportation.
The manufacture of grease to be used with lubricating oil in Indiana, United States. Grease is a mixture of lubricating oil and a soap. The soap is made in large mixers and then stirred with lubricating oil. Men manufacture the soap. Stirring of the soap with lubricating oil.
The testing of oil for its lubricating efficiency in Indiana. Stillman blends the various grades and types of lubricating oil in the compounding room. The 'pour test' of the oil is done to determine the lowest temperature at which the oil will flow. Then the oil is passed through the 'flash test' to determine the temperature at which the oil will flash when a lighted taper is passed across its surface.
U.S. Army anti aircraft gun of the 55th Brigade AAA during training exercise at Hammond Bombing and Gunnery Range near the Army Air Field in Hammond Louisiana during World War 2. Main anti aircraft batteries. A 90 mm canon. The muzzle of the 90 mm gun turns around. Camouflaged nets cover the gun. A jeep moves on a dirt road. A soldier with Antiaircraft Command (AA in a circle) shoulder patch steps from the jeep and walks toward a gun position.
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