Collection
4 Matching Results
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Pumping-Head.
Patent for a pumping head involving two piston rods that are rigid and, if broken, can be replaced without harming the rest of the machine. The patent includes instructions and illustrations.
Date:
November 17, 1914
Creator:
Boicourt, John L.
System:
The Portal to Texas History
Nutcracker.
Patent for a nutcracker that can crack all kinds of nuts, with relatively little force, on appropriate surfaces like tables. The Patent includes instructions and illustrations.
Date:
November 17, 1914
Creator:
Fort, Foster W.
System:
The Portal to Texas History
Combination Tie and Rail-Joint
Patent for improvement in the safety of tie and rail-joints. Improves the connection so that independent movement of the tie and rail is reduced.
Date:
November 17, 1914
Creator:
Knaus, John J.
System:
The Portal to Texas History
Permutation-Lock.
Patent for a device of a permutation lock. One of its objects is to improve the permutation mechanism thereof and to provide novel means whereby the combination of the lock may be changed.
Date:
November 17, 1914
Creator:
Meepos, Max
System:
The Portal to Texas History