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4 Matching Results
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Well-Screen
Patent for a well screen to prevent the entrance of sand or gravel into the wall of a deep well.
Date:
June 18, 1907
Creator:
Stancliff, George W.
System:
The Portal to Texas History
Lock.
Patent for "a lock of novel construction wherein the keyholes at opposite sites of the door are placed out of alignment for preventing children, servants, and curious persons from looking or listening through the keyhole." (Lines 12-17) Includes instructions and illustrations.
Date:
June 8, 1897
Creator:
Oleson, Andrew J.
System:
The Portal to Texas History
Separator.
Patent for a separator for separating hulls from kernels of seeds.
Date:
June 27, 1911
Creator:
Richmond, George E.
System:
The Portal to Texas History
Metal Chair.
Patent for a cheap metal chair that can be disassembled and reassembled easily.
Date:
June 2, 1917
Creator:
Wendell, Peter P.
System:
The Portal to Texas History