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Boring and Mortising Machine.

Description: 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."
Date: July 11, 1848
Creator: Swingle, Alfred
Item Type: Patent


Description: Patent for a machine, which the inventor calls "The Concussion Brick-Machine", that makes bricks using molds, including illustrations.
Date: May 30, 1848
Creator: Wilson, Robert
Item Type: Patent

Improvement in Curing Meat, &c.

Description: Patent for curing meat using an air-tight brine vacuum to heat and purify the meat, including illustrations.
Date: September 12, 1846
Creator: Allen, Augustus C.
Item Type: Patent