You limited your search to:

 Decade: 1840-1849
 Collection: Texas Patents
Improvement in Propelling Vessels.
Patent for a hydraulic propeller that uses a current of water and steam power, including illustrations. texashistory.unt.edu/ark:/67531/metapth165026/
Improvement in Curing Meat, &c.
Patent for curing meat using an air-tight brine vacuum to heat and purify the meat, including illustrations. texashistory.unt.edu/ark:/67531/metapth165027/
Brick-Machine.
Patent for a machine, which the inventor calls "The Concussion Brick-Machine", that makes bricks using molds, including illustrations. texashistory.unt.edu/ark:/67531/metapth165028/
Boring and Mortising Machine.
Patent for a machine to bore square holes in substitute for a chisel and reduce labor, including illustration. The inventor calls it a "Mortise and Tenon Machine." texashistory.unt.edu/ark:/67531/metapth165029/