Shows the rotor blade for the de Bothezat helicopter being tested during its development at the engineering division of McCook Field in Dayton,Ohio. Inventor George de Bothezat was hired by the U.S. Army Air Service in 1921 to produce a helicopter. This footage shows various tests being conducted: First a test of the " plane radical lifting screw ". The rotor is seen moving at high speed and lifting the front of the cart to which it is anchored. Second is a test showing the pitch variation mechanism. Next sequence show U.S. Army Lieutenant Colonel J.E. Fechet, Major T.H. Bane, and the inventor of the helicopter George deBothezat discussing with each other. De Bothezat points to the aircraft mechanism as he talks to the officers. De Bothezat and four Army officers sit in the helicopter to test the lift capability. The rotor rotates and lifts the front end of the cart with the 5 men seated in it, absorbing 30 horsepower.
General Mason M. Patrick,Chief of Air Service inspects De Bothezat helicopter during its development at engineering division of McCook field in Dayton, Ohio. Brigadier General William "Billy" Mitchell also takes a look at the helicopter. Russian immigrant George De Bothezat, the inventor of the helicopter, speaks to the officers. Two lift tests are shown with one lifting 1000 pounds and the other lifting 3500 pounds at 160 horsepower.
Secretary of Commerce Herbert Hoover (not pictured) inspects De Bothezat helicopter at engineering division of McCook field in Dayton,Ohio. Dr. George De Bothezat sits in the pilot seat and lifts off in the helicopter sometimes called the Jerome-de Bothezat Flying Octopus, with four rotors, built for the U.S. Army Air Service. It hovers a few inches above the ground. Men stand on all sides of it to help stabilize it. Assistant to George de Bothezat, Mr. Eremeff pilots the helicopter in another test.
Slum plans gets underway in Youngstown Ohio during the Great Depression. Views of dilapidated houses and shacks. Execution of low cost housing plans. Demolition of the old tenement buildings by work crews and city officials at a ceremony. Citizens, white and African American, watch the demolition of the houses.
A demonstration by a catholic organization in Cincinnati, Ohio. Catholic priests and men outside a building. Nearly sixty thousand men and boys gather in a street. Catholic priests walk past the crowd towards a monument.
Safety glass ensures better vision in Toledo, Ohio. Girls read a book through a safety glass as it makes reading easier. A technician helps them out. Safety glass being removed to demonstrate the difference in original vision and the one through a safety glass. Girls look at a picture through the safety glass. Models display different styles of clothes at a fashion show. Models wearing gowns and swim suits on the stage during the show.
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