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Modern community hygiene controls are presented. How the death rate from communicable diseases has been reduced through scientific advances and social controls. The effective functioning of a public health department.
Technique of drilling and tapping blind holes in cast steel on a radial drill. A drill jig with loose bushings is used for locating the holes. Setting up the work on the table of the machine, setting the jig on the piece to the layout lines. Calculating the size of the tap drill and the method used when setting the machine to drill a number of holes to the same depth. A wizard drill chuck is used in the drilling operation, and a standard friction chuck for holding the tap. The action of a tap in a hole is shown in animation and the reason why a tap binds in the hole and must be reversed frequently when tapping in tough metals.
The scene is Virginia, 1765, just after the King's tax proclamation has been read and the legislature is in an uproar. Ensuing events lead to a protest meeting held by patriots at Richmond, at which Patrick Henry delivers his "Give me liberty" speech.
Focuses on the conservation of important natural elements such as rubber, oil and metal needed to support the U.S. Victory Program. Viewers are shown various ways in which they can change daily habits to get the most out of these materials.
Shows various types of micrometers; how to use a micrometer, read the barrel and thimble scales, check the accuracy of readings, and take care of the instrument.
This film uses diagrams to illustrate the importance of salvaging common everyday items in an effort to reuse important raw materials for building ships. The film asserts that one day's salvage by the whole British people counteracts the loss of one ship. An emphasis is put on "The importance of salvage to the flow of goods; [and] various examples of useful materials commonly thrown away."--War Films, Bulletin of the Extension Division, Indiana University, February, 1943.
A British production made as a fund raising appeal to American audiences to aid British children affected by the Blitz. The film depicts the hardships of life during wartime for children and discusses the relief efforts of the Save the Children Federation.