Slate refers to Leinweber brothers helicopter in Chicago. View of their helicopter being moved out of a hangar in 1922. Closeup of helicopter controls being demonstrated. Next, a helicopter of M. Douheret, of France, is shown in 1919. Men stand nearby and watch its rotors turn in the breeze. Engine cylinders are clearly visible. Pilot sits in the machine and adjusts controls. Next he stands and starts engine. Suddenly, the running helicopter tips over and he runs for safety but returns to shut the engine down. In a second attempt, the pilot is again seen standing next to the machine, with its engine running. And, again, he must run to safety, as it tips over. This time it stops running by itself, and other men help him tip it back upright.
Meat packing industry in the United States. Corn Belt: Cattle are fed on grain. In Chicago, Illinois : cattle in a stockyard. Buyers walk near fences to select animals. A buyer selects cattle. Cattle walk in a narrow passage of a meat packing plant.
Meat packing industry in Chicago, Illinois, United States. Butchers near carcasses hanging from a ceiling. The butchers remove organs from the carcasses. A butcher cuts beef into two parts. A government official inspects beef. The man puts a seal on beef. Beef is cleaned and washed in warm water. Beef in a chilling chamber. Men place beef in cold storage. Men close the door of the cold storage.