Spark Arrester. (open access)

Spark Arrester.

Patent for a new and improved spark arrester for smokestacks. This design "consists of an inverted hollow cone suspended within a hollow and flaring receiver for the sparks . . . so as to deflect the sparks against a conical annular cover to the receiver, whereby the sparks are broken and thrown against an arrester located over the hollow cone, and by which the sparks are again broken . . . and continued in that course until extinguished" (lines 7-18).
Date: August 22, 1882
Creator: Green, George
System: The Portal to Texas History
Egg-Crate. (open access)

Egg-Crate.

Patent for "a crate in which eggs may be shipped by freight, express or parcels post...without being cracked or broken" (lines 10-14), including illustrations.
Date: June 22, 1915
Creator: Miller, Robert E.
System: The Portal to Texas History