Resource Type

Composition To Be Used As A Non-Conductor Of Heat And For Other Purposes. (open access)

Composition To Be Used As A Non-Conductor Of Heat And For Other Purposes.

Patent for a non-conducting material designed to prevent heat loss from radiation, prevent damage from frost, for fire-proofing, and for "the deafening of floors and partitions" (lines 21-22). Ingredients and proportions are listed.
Date: August 30, 1887
Creator: Clayton, Nicholas Joseph.
System: The Portal to Texas History
Lock. (open access)

Lock.

Patent for a new and improved lock that which "provide a lock for doors, safes, drawers, and the like, the bolt of which is adapted to be unlocked from he outsides by means of a combination, and while being release will instantly ring the door-bell by means of connecting wires, and which, when operated from the inside, can be opened without giving the signal on the bell, and in either operation the parts of the lock will automatically return to their position and lock the bot in the striker-plate unless otherwise adjusted" (lines 14-25)
Date: August 30, 1887
Creator: Rau, Louis Carl
System: The Portal to Texas History