UNT Libraries Government Documents Department - 14 Matching Results

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Windmill.

Patent for new and useful improvements in windmills with a novel construction. This specific construction will help create much more efficiency than the existing windmills.

Date: September 8, 1903

Creator: Ham, James T.

Item Type: Patent

Gun-Trap.

Patent for an animal trap, which has a pistol mounted inside it which fires when the bait is disturbed.

Date: July 23, 1907

Creator: Klespies, William

Item Type: Patent

Lap Link

Patent for a lap link. Illustration included.

Date: September 10, 1907

Creator: Long, Abijah

Item Type: Patent

Car-Truck.

Patent for a car truck for use on trains, which can withstand heavy loads and high speeds.

Date: August 25, 1908

Creator: Mayo, William C.

Item Type: Patent

Electric Track-Brake.

Patent for an electric train brake, which allows trains to not slow down on curves without derailing and allows faster emergency braking.

Date: August 25, 1908

Creator: Mayo, William C.

Item Type: Patent

Electrically Operated Air Brake System

Patent for an electrically operated air brake system.

Date: August 25, 1908

Creator: Mayo, William C.

Item Type: Patent

Nut-Lock.

Patent for a nut-lock for car wheels, which holds the wheel securely together.

Date: February 18, 1908

Creator: Mayo, William C.

Item Type: Patent

Cleaning Apparatus.

Patent for a cleaning apparatus, which cleans objects by blasting air across them and has an air cleaning system for use after the cleaning is done.

Date: June 1, 1909