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Wrench.
Patent for a pipe-wrench that has a shank with a fixed jaw, a handle for the shank, a movable jaw with two loops for the shank to pass through and a movable upper loop, a ferrule attached to the handle with a long opening, an adjustable screw with a milled collar in the movable jaw, and a pin attached to the shank.
Date:
July 16, 1895
Creator:
McElroy, Harry
System:
The Portal to Texas History
Railroad-Rail Joint.
Patent for a specialized railroad joint that has a "novel combination of a T-shaped splice rail" (lines 12-13) in combination with other parts, "connected with downwardly-curved truss-bolts passing through the vertical member of the splice-rail in such matter as to hold all of the parts firmly together..." (lines 19-23).
Date:
March 16, 1897
Creator:
Trammell, Jefferson D.
System:
The Portal to Texas History
Draw Bar for Locomotives.
Patent for a new and improved draw-bar for locomotives. This design consists, "with the frame of the locomotive and pilot mounted thereon, of the draw-bar connected to the frame, devices for locking and holding the draw-bar on the pilot, and a counter-weight for automatically elevating the draw-bar when released" (lines 97-102).
Date:
August 16, 1892
Creator:
Heidelberg, Samuel H.
System:
The Portal to Texas History