Rotary Engine. (open access)

Rotary Engine.

Patent for a stably constructed and effective rotary engine in which "the full effect of live steam under a full head can be attained at all times on the drive shaft" (lines 12-14).
Date: February 27, 1894
Creator: Walker, James C.
System: The Portal to Texas History
Mattress-Making Machine. (open access)

Mattress-Making Machine.

Patent for a mattress making machine that is more simple but equally-efficient as previous mattress making machines. This patent is an improvement to the inventor's previous patent, No. 679,809.
Date: February 27, 1906
Creator: White, Charles W.
System: The Portal to Texas History
Burglar Alarm (open access)

Burglar Alarm

Patent for alarm that is activated upon the closing of a circuit, which will occur when an intruding person enters through the window or door.
Date: February 27, 1917
Creator: Hilley, Albert O.
System: The Portal to Texas History