Washing-Machine.

Washing-Machine.

Date: April 7, 1891
Creator: Polk, Kindrick Ford
Description: Patent for improvements in washing-machines by using a combination of adjustable stationary rubbing-board and a rotary rubbing-cylinder to regulate the pressure on the clothes and at the same time, clothes can be cleaned without injury to them. Illustration is included.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Carriage-Axle Boxes.

Improvement in Carriage-Axle Boxes.

Date: December 11, 1877
Creator: Sitton, William A.
Description: Patent for "a new and useful improvement in carriage-axle boxes and spindles" (lines 3-5), includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Rotary Engines.

Improvement in Rotary Engines.

Date: February 5, 1878
Creator: Evens, George
Description: Patent for Improvement in Rotary Engines concerning "the arms of the frame" (lines 9), which are powered by steam and "steam valves with arms" (line 17) including a detailed explanation and description of the illustration.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Car-Brakes.

Improvement in Car-Brakes.

Date: June 1, 1875
Creator: Kirtley, Fielding L.
Description: Patent for "car-brakes that work automatically and without manual intervention as soon as the locomotive is stopped." (Lines 12-14) Includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Car-Brakes.

Improvement in Car-Brakes.

Date: June 1, 1875
Creator: Kirtley, Fielding L.
Description: Patent for "a means for the automatic application of brakes to the cars of a railway-train; and it consists in a loosely-moving draw-bar attached to the car by means of bolts passing through a central longitudinal slot, and having its sides wrought into two rack-bars, which mesh with pinions upon two windlass-shafts; which arrangement, when the locomotive is "slowed," causes the impact of the cars to drive up the draw-bars and wind up cords upon the windlass-shafts, which communicated with and apply the brakes to the wheels." (Lines 11-23) Includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Improvement in Guide-Wheels for Car-Trucks.

Improvement in Guide-Wheels for Car-Trucks.

Date: November 17, 1874
Creator: Hale, Nathan M.
Description: Patent for a "device or attachment to car-trucks, &c., for preventing their being thrown off the track." (Lines 8-10) Includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Pump.

Pump.

Date: December 15, 1896
Creator: Clarkson, William
Description: Patent for a pump "whereby the pressure exerted upon the liquid in the pressure-pipe is alternately high and low, the high pressure being utilized to elevate the pump-rod, giving a rapid upstroke, and the low pressure to lower said rod gradually and insure a return flow of the liquid in the pressure-pipe." (Lines 26-33) Includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Paper-Perforating Device.

Paper-Perforating Device.

Date: September 15, 1890
Creator: Wells, William F.
Description: Patent for "a combined gripper-bar and perforator for use on printing-presses." (Lines 8-9) Includes instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Swinging Chair.

Swinging Chair.

Date: September 3, 1891
Creator: Eller, Julius M.
Description: Patent for improvements in swinging chairs for children, "which will render the chair automatic in operation or require but little exertion from the child occupying it, there being little or no danger of the child falling out while the chair is swinging," (lines 14-18) including instructions and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Hydraulic Pump

Hydraulic Pump

Date: December 15, 1896
Creator: Clarkson, William
Description: Patent for a hydraulic pump with "means for automatically supplying water to the pressure-pipe while the pump is working to replenish waste or leakage." (Lines 18-20) Includes instructions or illustrations.
Contributing Partner: UNT Libraries Government Documents Department
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