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Ventilator.

Description: Patent for a ventilating cowl for buildings for fire prevention by causing smoke and sparks to pass outside of a building or deflate to the surface below. The cowl is cone shaped with a deflecting surface and has several rings through which smoke and sparks can pass through to the outside.
Date: November 30, 1915
Creator: Ashorn, Inshrish
Partner: UNT Libraries Government Documents Department

Plow-Stock.

Description: Patent for a new and improved plow-stock. This design is of "an improved plow-stock, which shall be so constructed that various kinds of standards, according to the various kind and size of the plows to be used, may be attached to it, which may be adjusted to take and leave land, as may be desired, and which shall be simple in construction and easily adapted" (para. 4).
Date: January 16, 1877
Creator: Weber, Robert
Partner: UNT Libraries Government Documents Department
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