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Bed-Spring Tightener
Patent for improvements in bed-spring tighteners, for adjusting the tension of a bed spring supporting wire as may be required. Illustration is included.
Date:
July 5, 1910
Creator:
Tlustos, Joseph J.
System:
The Portal to Texas History
Two-Stage Pump
Patent for a two stage pump. Illustrations included.
Date:
July 12, 1910
Creator:
Gray, William T.
System:
The Portal to Texas History
Spark-Plug
Patent for new improvements in Spark-Plugs which decreases the possibility of imperfect sparking and provides a visible indication if the spark plug is not working properly.
Date:
July 28, 1914
Creator:
Cole, Emory W.
System:
The Portal to Texas History
Traction-Wheel.
Patent for a traction wheel that has improved traction on muddy ground.
Date:
July 12, 1910
Creator:
Larson, Louis O.; Larsen, Arvid R. & Johnson, Sigfried
System:
The Portal to Texas History
Spring-Clip Tool.
Patent for "putting back spring or axle clips where the clip is slightly bent and difficult to replace by hand, the tool serving as a convenient means for bending and forcing the clip in place without injuring the threads thereon" (lines 19-23), with illustrations.
Date:
July 1, 1919
Creator:
Stark, Gara Roscoe
System:
The Portal to Texas History