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+"United States USA" +1926 stock footage and images
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A vintage telephone truck with mechanical devices in contrast to even older telephone laying techniques in the United States.
Old versus modern (now vintage) telephone trucks in the United States. A truck trailer loaded with telephone poles driven through a wooded region. Two men on the truck. A few men unloading a telephone cable from a wheel cart. A truck with telephone line laying equipment in a wooded region. Men on the truck. A man beside the truck. Trees on both sides of the road. A modern updated telephone truck of the mid 1920's with mechanical devices fitted on to it be used in laying lines.
Technicians at devices and women operating telephone switchboard lines at Bell System telephone building in the United States.
Bell System telephone building in the United States. Bell System telephone building with the Bell System emblem on the top right corner of the building. A drawing which shows activity inside the building. View of technicians at work inside the building at various devices. Several women seated in a row operating different telephone lines and switchboards. A few instructors beside the women switchboard operators.
An actress portraying Juliet and an actor portraying Romeo act standing in a balcony in the United States.
An amateur stage production of Romeo and Juliet in the United States. The actress portraying Juliet stands in a balcony. The actor portraying Romeo hugs and kisses her.
US Government approved or Oxygen Breathing Apparatus (OBA) and its safety usage demonstration
Training film showing different kinds of rebreather (or Oxygen Breathing Apparatus) used in mine rescues. Models show four types of rebreathers approved by the United States Bureau of Mines- Paul, Gibbs, Fleuss-Davis, and MC CAA. A man points to different parts of the rebreather- such as an oxygen bottle, reducing valve, regenerator, and by-pass valve. Men pump oxygen bottles before using the Oxygen Breathing Apparatus. An oxygen bottle is installed in Oxygen Breathing Apparatus. Men charge the regenerator with chemicals to absorb carbon dioxide from exhaling, places regenerator back to the Oxygen Breathing Apparatus. Man disinfects Oxygen Breathing Apparatus mouthpiece and tubes in a solution of bichloride of mercury or Lysol. Man rinses disinfected tubes with water before installing them back to the apparatus.
Rescue crew uses a lamp to test for methane gas and oxygen inside a mine
A rescue crew explores a mine. Rescue team with Oxygen Breathing Apparatus use elevator to enter the mine. Rescue team explore mine tunnel to search for trapped workers. Rescue team tests a lamp for presence of methane gas. Flame rises inside lamp due to methane gas in mine. Flame goes out in lamp due to lack of oxygen.
Rescue team uses a canary in a coalmine to detect presence of carbon monoxide inside a mine
Canary in a coal mine and carbon monoxide detector use for rescue operations inside mines. Rescue team uses a carbon monoxide detector and a caged canary bird to detect presence of carbon monoxide. Canary bird in cage expires due to high carbon monoxide.