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Back Spacing Attachment for Type Writing Machines
Patent for an attachment to provide type writing machines with back space. Illustration included.
Date:
July 19, 1904
Creator:
Parker, William A.
System:
The Portal to Texas History
Car Coupling.
Patent for a new and improved coupling for railroad cars. This design is "to provide a novel car-coupling pin and means for operating the same to automatically couple cars through the medium of ordinary links without the use of triggers located within the draw-head . . . The invention consists, essentially, in a vertically-movable coupling-pin adapted to rotate axially in the pin-hole of the draw-head, and having a wing or lug for supporting it in its elevated position, combined with a yielding draw-head having a vertical slot to receive the wing or lug and a shoulder to support the same" (lines 8-22).
Date:
July 19, 1887
Creator:
Power, Kelsey L.
System:
The Portal to Texas History
Refrigerator
Patent for a refrigerator. Illustrations included.
Date:
July 19, 1910
Creator:
Conroy, Eliza D.
System:
The Portal to Texas History