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Improvement in Ground-Squirrel Exterminators.

Patent for an "improved apparatus by means of which ground-squirrels and gophers can be destroyed in their holes, conveniently and effectively, and at small expense" (para. 4). The mechanism works by gassing underground vermin with sulphuric fumes.

Date: July 10, 1877

Creator: Dreyer, Henry

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Seed Cotton Cleaner and Distributer.

Patent for a new and improved cotton cleaner and distributor. This design consists in "[t]he combination, with the cylinder and drum, of a shaft mounted in bearings on the frame and extending through the said cylinder and provided with blades of varying length, a fan located in the drum, a pipe leading tangentially out from said drum, said pipe having openings formed therein, and guides secured on said pipe over said openings, said guides having wire sides" (lines 46-54).

Date: September 10, 1889

Creator: Elliott, James W.