Resource Type

States

Improvement in Apparatus for the Manufacture of Ice. (open access)

Improvement in Apparatus for the Manufacture of Ice.

Patent for improvements on machinery for the manufacture of ice.
Date: August 29, 1871
Creator: Sears, James E.
System: The Portal to Texas History
Improvement in Ice-Machines. (open access)

Improvement in Ice-Machines.

Patent for improvements to the construction of "of the various parts of the [ice machine], whereby the reconversion of the ether into liquid before it reaches the freezing-vessel or chamber is better assured" (para. 3).
Date: December 12, 1871
Creator: Mühl, Andrew
System: The Portal to Texas History