UNT Libraries Government Documents Department - 4 Matching Results

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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."
Brick-Machine.
Patent for a machine, which the inventor calls "The Concussion Brick-Machine", that makes bricks using molds, including illustrations.
Improvement in Curing Meat, &c.
Patent for curing meat using an air-tight brine vacuum to heat and purify the meat, including illustrations.
Improvement in Propelling Vessels.
Patent for a hydraulic propeller that uses a current of water and steam power, including illustrations.
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