Vehicle Tire (open access)

Vehicle Tire

Patent for a vehicle tire. Illustration included.
Date: December 14, 1909
Creator: Banks, Theodore E.
System: The Portal to Texas History
Extension Step Ladder (open access)

Extension Step Ladder

Patent for an extension step ladder. Illustrations included.
Date: December 14, 1909
Creator: Binger, Nickolaus & Burgstaller, Ernest F.
System: The Portal to Texas History
Universal Lever (open access)

Universal Lever

Patent for a new universal lever “for the purpose of the transmission of power from any suitable source to a rod or bar, for reciprocating the rod or bar in a perfectly straight line at all times” (lines 15-18) including instructions and illustrations.
Date: December 14, 1915
Creator: Blackaller, Miguel
System: The Portal to Texas History
Revolving Sand Drag (open access)

Revolving Sand Drag

Patent for a new and useful improvements in revolving sand drags. This design is to "provide a machine of this character by means of which the sand-bars in formed in rivers" (line 12-14)
Date: December 14, 1897
Creator: Murphy, James
System: The Portal to Texas History