Mechanical Motor. (open access)

Mechanical Motor.

Patent for an improved and efficient "in motors adapted especially for domestic use, its object being to provide a cheap, compact, durable, and efficient automatic motive mechanism which may be utilized for drivers various household apparatus" including instructions and illustration.
Date: May 25, 1880
Creator: Miller, Noah J.
System: The Portal to Texas History
Manufacture of artificial stone. (open access)

Manufacture of artificial stone.

Patent for the manufacture of artificial stone using gravel, sand, water, cement, lamp-black, isinglass and sesquioxide of iron.
Date: December 25, 1883
Creator: Gallup, John W.
System: The Portal to Texas History
Evaporator. (open access)

Evaporator.

Patent for a new and improved evaporator. This design "consists in certain improvements in the construction of . . . sugar boilers or evaporators" (lines 19-21). This design utilizes "[t]he combination, with an evaporating-pan mounted upon wheels or rollers, of a furnace provided with inclined holes adjoining its sides to accommodate the wheels of the evaporator" to make said improvements (lines 57-61).
Date: January 25, 1881
Creator: Harman, Franklin S.
System: The Portal to Texas History