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3 Matching Results
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Window-Lock
Patent for a window lock. Illustrations included.
Date:
May 3, 1910
Creator:
Sydow, John F.
System:
The Portal to Texas History
Folding Car-Step
Patent for "new and useful Improvements in Folding Car-Steps" (lines 5-6) to facilitate easier passenger boarding of rail cars, including instructions and illustrations.
Date:
May 20, 1913
Creator:
Mayhew, Edwin B.
System:
The Portal to Texas History
Kiln
Patent for improvements to kilns, which include improvements for transferring heat, "burning lime and clay products"(line 11), powdered fuel feeding and preventing unheated air from flowing into the kiln.
Date:
May 13, 1919
Creator:
Bone, David R.
System:
The Portal to Texas History