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Oil Can. (open access)

Oil Can.

Patent for a new and improved oil can. This design utilizes a handle with a hollow tube leading into the oil chamber, so when the removable cap is unscrewed from the handle, air flows into the chamber, which allows the oil to flow. This eliminates the need for a spring-bottom as with other oil cans, for the flow of oil can be stopped by sealing the tube.
Date: January 31, 1882
Creator: Wilson, Charles Bennett
System: The Portal to Texas History
Car Coupling. (open access)

Car Coupling.

Patent for a new and improved coupling for railroad cars. This design "consists in a lever pivoted in the front of the top of the draw-head and provided at its outer end with an aperture, through which the coupling-pin is passed into the aperture in the draw-head, below which lever another lever is pivoted, hanging vertically across the front-opening of the draw-head, and provided at the upper part of its inner edge with a projection, so that when the coupling-link pushes the lower lever inward the upper lever and the pin are raised, and drop as soon as the link has passed into the draw-head" (lines 10-21).
Date: January 31, 1882
Creator: Griffin, James Lee
System: The Portal to Texas History