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Uganda 1924 stock footage and images
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A laboratory demonstration in the U.S. showing varying properties which can be imparted by heat treating pieces of steel.
A film titled: 'The story of heat treatment of steel' on the heat treatment of steel in the United States. Interior of a laboratory. Varying properties which can be imparted by heat treating different pieces of a steel rod are demonstrated. A man seated at a desk. He stands up and holds a rod of untreated steel. The rod is treated using different heat treating methods. Four treated rods are placed on a table. One of the rod becomes extremely hard. Another rod becomes very soft. The third rod can be bent double without destroying the steel structure. The fourth rod is extremely elastic. A diagram depicts physical properties of steel.
Heat treatment of front axles of automobiles in the United States.
Heat treatment in automobile manufacture in the United States. Automobiles passing on a street. Exterior of an automobile industry. Men working outside the building. Interior of the building. Automobile parts under construction. The front axle of an automobile. Microscopic view of the axle before heat treatment. Cars moving across a field. Axles are treated in a huge automatic furnace. Interior of a building. Men working on the treatment of axles. Flame is kept away from metal while heating. Heat reaches the axles through numerous small openings. The temperature must be raised slowly and evenly to a specified degree and held there. A man turns a knob. Each furnace is equipped with electric temperature indicators called 'pyrometers'. The temperature is automatically recorded in the control office. Variations in temperature are recorded. Lines being drawn to indicate the variations in temperature. The straightness of the line indicates the uniformity of the temperature. Each furnace has a deviation indicator, showing slightest variation from the specified temperature. The furnaces are also equipped with signal lights. If the temperature gets too high, the red light glows and in case of too low temperature, the blue light glows. The white light indicates correct temperature.
Processing and cooling of axles in an oil bath during heat treatment of metal in the United States.
The heat treatment of front axles of automobiles in the United States. Interior of a building. The axles slowly move through a furnace with the temperature gradually increasing. The temperature is held at a point for 15 minutes to ensure absolute uniformity. The axles automatically descend into an oil bath after this process. The oil must be kept at the proper temperature to give the steel maximum strength. The oil temperature is recorded in the control office. The oil is cooled by cold water pipes. The water is cooled by fountain sprays. A storage tank replaces the oil. Cooling of the axles in the oil bath. This completes the first step of heat treatment called hardening. Metal at this stage is viewed under a microscope. Comparison of the appearance before and after hardening. Tempering of the metal to relieve the strains set up during the hardening process.
A dramatization depicts men in mining community standing outside a billiards saloon and talking in the United States.
A film titled: 'When a man's a miner' dramatizes the use of safety instruction in coal mines in the United States. View of the coal fields called Tippleville. Houses along the sides of a street. A banner on a building reads: 'Troy's Pocket Billiards'. Men standing outside the building and talking. One of the man is Spike Sherman, who is a motorman in a mine. Dick Kincaid and his sister Mary Kincaid arrive near the building. Men talking about the girl. A man asks Spike why he was jealous of Lucky Burns if he was not crazy about the girl. The men argue and fight.
A dramatization depicts Lucky Burns and Dick Kincaid talking about joining safety classes in the United States.
A film dramatizes the use of safety instruction in coal mines in the United States. The Tippleville coal mine. Men coming out of the mine after a day's work. Men walk past a board which reads: 'Safety Bulletins'. They look at the board. The notice is about instructions which are to be given next Monday about first aid and mine rescue work by the U.S. Bureau of Mines rescue car. Two men, Lucky Burns and Dick Kincaid, talk about the notice. Dick asks Lucky to sign up for the thing. Lucky denies. Dick joins the class. Exterior of the mine. Men walking nearby.
A dramatization depicts Lucky Burns and Mary Kincaid talking in her house in the United States .
A film dramatizes the use of safety instruction in coal mines in the United States. The Tippleville coal mine. Interior of a house. Mary Kincaid in the house. Lucky Burns arrives and talks to her. He proposes to her. Mary rejects the proposal. Lucky says that Mary's brother Dick Kincaid is earning enough money to take care of himself and her mother. So she should not refuse his proposal for any reason. She replies that she could never be happy with a man who is always taking chances. She says this as Lucky has denied to take safety lessons in the mine and has also said that the most of the course is taught by fellows who never worked in a mine. Dick arrives and asks them to have food. Mary further says that her mother has suffered a lot as her father was like Lucky and always took chances. She recalls the incidence. Her father was working in the mine with other miner. The miner warned her father of a loose piece of rock over him. Her father replied that the rock wouldn't fall and he would take it down when the car is loaded. The rock suddenly falls over her father. She says that her father was killed and then her mother had to suffer a lot afterwards.
