UNT Libraries Government Documents Department - 16 Matching Results

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Mouse-Guard for Pianos.

Patent for "an upright device for closing the opening in the front of a piano directly below a pedal to thereby render the piano mouse proof" (lines 8-11). The device utilizes spring tension to operate.

Date: May 21, 1918

Creator: Bell, Silas D.

Item Type: Patent

Automatic Air-Brake Applier.

Patent for automatic air brake applier to release the air in the train pipe with a resultant application of the brakes upon a car wheel leaving the tracks, including illustration.

Date: December 16, 1913

Creator: Hall, Charles E.

Item Type: Patent

Blow-Off Cock

Patent for new and useful Improvements in “blow-off cocks for use on locomotive and other boilers,” (line 9-11), including an illustration.

Date: November 23, 1915

Creator: Roach, John L. & Dawson, Lance L.

Item Type: Patent

Chest for Piston-Valves.

Patent for a valve chest "fitted for the reception and operation of a piston valve, easily applying to a piston cylinder of a locomotive in place of a removed slide-valve chest without loss of the cylinder, adapting to use superheated steam and high pressure." (lines 11-19).

Date: May 23, 1916

Creator: Dawson, Lance L. & Roach, John L.

Item Type: Patent

Mouse Guard for Pianos

Patent for a pivoting flap device to block access of mice to the interior of the piano through the space beneath the pedals.

Date: August 10, 1915

Creator: Bell, Silas D.

Item Type: Patent

Maize Cutter or Gatherer

Patent for maize cutter or gatherer that is worn over the hand.

Date: November 14, 1916

Creator: Christian, Frank F.

Item Type: Patent

Electric-Shade Insect-Destroyer

Patent for an electric shade insect destroyer where the shade acts as a lamp shade and a insect catcher.

Date: May 9, 1916

Creator: Levine, Lewis

Item Type: Patent

Spring Wheel

Patent for a wheel with spring constructed spokes that would eliminate vibrations in the attached vehicles.

Date: October 31, 1916

Creator: Matthews, Arthur R.

Item Type: Patent

Rail-Joint.

Patent for improvements in rail joints. A patent for a boltless, interlocking rail joint that is noiseless.

Date: February 3, 1914

Creator: Bell, Silas D.

Item Type: Patent

Door Opener

Patent for "improved door opener for automobiles constructed particularly to enable the driver to control any of the doors and open any such selectively at pleasure without leaving his seat." (lines 8-12).

Date: June 8, 1915

Creator: Hyland, George O.

Item Type: Patent

Agricultural Implement

Patent for a novel and improved implement of this general character including a plurality of supporting members provided with ground working elements together with a body positioned upon said supporting members and wherein said said supporting members and body are capable of relative movement transversely of the direction of travel of the implement.

Date: August 7, 1917

Creator: Harris, Joseph A. & Howard, Arthur W.

Item Type: Patent