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Condenser
Patent for "the construction of surface-condensers for condensing steam, condensing cooling ammonia-gas, and other purposes" (lines 17-20) including instructions and illustrations.
Date:
June 15, 1880
Creator:
Lee, Charles Brogden
System:
The Portal to Texas History
Brick-Machine
Patent for "that class of brick-machines usually termed 'dry-press machines,' in which clay is taken from the bank and passed into molds in a revolving wheel" (lines 15-19) and "consists more particularly in the construction of details and combination of parts" (lines 23-25) including instructions and illustrations.
Date:
June 15, 1880
Creator:
Johnson, Richard M.
System:
The Portal to Texas History