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Cotton-Gin Brush.
Patent for a gin brush that operates at high speeds with a large diameter. "Centrifugal force exerts a great strain tending to dismember it, and further, if it be not at all times accurately balanced there is a tendency to spring the shaft and cause rattling in the bearings which results in rapid wear and failure to work well" (lines 13-19).
Date:
March 21, 1893
Creator:
Elam, William E. & Thomas, Robert S.
System:
The Portal to Texas History
Level.
Patent for a level that holds vials in place securely.
Date:
March 21, 1911
Creator:
Smith, James B.
System:
The Portal to Texas History
Spring-Trip-Foot-Adjusting Device.
Patent for a spring trip foot adjusting device for cultivators.
Date:
March 21, 1911
Creator:
Thomas, Charles E.
System:
The Portal to Texas History
Baling-Press.
Patent for improvements in baling-presses are to reduce the labor of smoothing even the bales and to make the operation safe by carefully arranging different parts of the machines. Illustration is included.
Date:
March 21, 1905
Creator:
Stopple, John J.
System:
The Portal to Texas History
Safety Car-Ladder.
Patent for a safety car ladder for railroad cars that is easy to repair.
Date:
March 21, 1911
Creator:
Saling, Marshall F.
System:
The Portal to Texas History
Bread-Knife.
Patent for bread knives that consists of a plurality of knives spaced apart to cut the slices of uniform width.
Date:
March 21, 1916
Creator:
Roberts, Isaac F.
System:
The Portal to Texas History
Leather-Press
Patent for device which can clamp down leather strips while they are being flexed.
Date:
March 21, 1916
Creator:
Shaw, Fred H.
System:
The Portal to Texas History