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Trap

Patent for a bird-catching trap that has an entrance that is always open but prevents exit; also includes a device that keeps the bait visible but never attainable

Date: December 23, 1919

Creator: Mayse, Henry F.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Mechanical Device for Concentrating Vision.

Patent for an optical device proposed to replace lenses and goggles. Instead of lenses, this device has circular shutters (much like a camera) that forces direct vision and eliminates peripheral vision for concentration and focus.

Date: August 19, 1919

Creator: Compere, Dolphus E.