Ice-Cream Freezer. (open access)

Ice-Cream Freezer.

Patent for an ice-cream freezer that "effectually and with slight labor freez[es] cream; to be so constructed as to freeze the cream into sticks of merchantable size and adapted for retail trade; and, furthermore, to provide for a simultaneous manufacture of ice, so that as the cream is frozen water may be congealed forming ice that may be subsequently employed in the freezer or otherwise" (lines 10-18).
Date: April 3, 1894
Creator: Skipper, James M.
System: The Portal to Texas History
Pipe-Wrench. (open access)

Pipe-Wrench.

Patent for a pipe-wrench that is a "pair of tongs [made] for holding rods or pipes of different diameter so that, when between the jaws, they will be held by an elastic cam pressure, without any further muscular exertion by the smith or expert mechanic who is about to work upon the rod or pipe" (lines 16-21).
Date: November 13, 1894
Creator: Riza, Mike H.
System: The Portal to Texas History