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Drill.
Patent for an improvement to drills. Side cutters have been added onto the drill head that extend farther from the head than the cutter underneath. This gradually enlarges the bore and allows for lubrication of bearings and water can be used to flush out the bore while digging.
Date:
August 31, 1915
Creator:
Decker, Harry R.
System:
The Portal to Texas History
Poultry-Coop.
Patent for coop for poultry and similar animals that can be kept in a sanitary condition. The coop has a removable container that holds the refuse and can contain disinfectant. This container sits below the mesh floor of the coop.
Date:
August 31, 1913
Creator:
Clippinger, Levi
System:
The Portal to Texas History