6 Matching Results

Search Results

Advanced search parameters have been applied.

Magneto-Telephonic Apparatus

Description: Patent for an invention to improve transmitting vocals and other sounds. It is a magneto telephonic system based on an magnetic field of high intensity.
Date: May 4, 1886
Creator: Brown, Fred. H.
Partner: UNT Libraries Government Documents Department

Lamp-Burner

Description: Patent for the provision of spring pressed clamps pivotally mounted on a burner and adapted to engage opposite sides of the base of a lamp chimney and thereby securely hold the lamp chimney in place on the burner and yet permit the ready removal of the chimney.
Date: January 4, 1916
Creator: Patterson, Simon H.
Partner: UNT Libraries Government Documents Department

Ant Trap.

Description: Patent for a new and improved ant trap. This design "consists in a frame which is adapted to be placed over the ant-hill, so as to surround the entrance thereto, and provided with parallel surrounding flanges or sides which converge to each other and lead to an exit-spout . . . [and] is to provide an ant-trap which is adapted to catch the ants both on their attempt to leave the hill or to return to it, whereby the entire colony may be exterminated" (lines 9-21).
Date: January 4, 1887
Creator: Wise, David & Rountree, Reuben
Partner: UNT Libraries Government Documents Department
Back to Top of Screen