Collapsible Crate (open access)

Collapsible Crate

Patent for a collapsible crate. Illustration included.
Date: December 1, 1903
Creator: Orr, William H.
System: The Portal to Texas History
Blind Stop. (open access)

Blind Stop.

Patent for a new and improved blind-stop. This design consists "[i]n blind-stops, the rod, consisting of two parts connected by a thin piece of metal, in combination with a blind provided with a median open-slotted tapering screw and thumb-nut" (lines 49-53).
Date: December 25, 1888
Creator: Warren, Thomas
System: The Portal to Texas History
Machine-Brake. (open access)

Machine-Brake.

Patent for machine brake for regulating the speed of an automatic fan.
Date: December 14, 1915
Creator: Reeves, Elijah Winston
System: The Portal to Texas History
Improvement in the Propulsion of Vessels. (open access)

Improvement in the Propulsion of Vessels.

Patent for improvement in vibrating propellers with continued paddle action that can be attached to a line of boats.
Date: December 30, 1873
Creator: Macowitzky, Charles P.
System: The Portal to Texas History
Improvement in Vibrating Propellers. (open access)

Improvement in Vibrating Propellers.

Patent for new and useful improvement in vibrating propellers.
Date: December 22, 1874
Creator: Macowitzky, Charles P.
System: The Portal to Texas History
Electric Switch (open access)

Electric Switch

Patent for an electric switch. Illustration included.
Date: December 10, 1912
Creator: Ramsay, Robert L.
System: The Portal to Texas History