UNT Libraries Government Documents Department - 18,572 Matching Results

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Car Coupling.

Description: Patent for a new and improved coupling for railroad cars. This design is of a car-coupling with a bumper having recesses and slots, "having [a] lip and transverse inner wall, the hook pivoted therein, the bumper, the stirrup suspended beneath the bumper, vertical rods or connections, levers pivoted in suitable bearings on the car-roof, locking-plate, and the [additional] levers" (lines 1-6).
Date: February 20, 1883
Creator: Hawkins, William A. & Hawkins, Charlie S.
Item Type: Refine your search to only Patent

Improvement in Locomotive Earth-Excavators.

Description: Patent for "an earth-excavator, principally for use in making the road-beds for railroads, which shall not only do its work continuously, but which shall be equally efficient in throwing up an embankment or in making a deep cut." (Lines 8-12) Includes instructions and illustrations.
Date: December 28, 1875
Creator: Hawley, Abel
Item Type: Refine your search to only Patent

Improvement in Rotary Dredgers.

Description: Patent for an improved rotary dredging-machine operated by adjustment from the engine through gearing enabling the manipulation of "a heavier wheel than would otherwise be practicable" (lines 71-72) with illustrations.
Date: December 21, 1875
Creator: Hawley, Abel
Item Type: Refine your search to only Patent

Tanning Compound.

Description: Patent for a new compound used for tanning hides and skins of all kinds. It lists the ingredients and their proportions. “The principal advantage of the compound is that its action on the hides is speedy” (lines 27-28).
Date: September 15, 1882
Creator: Hayden, Charles Thomas
Item Type: Refine your search to only Patent

Cotter-Pin Puller

Description: Patent for cottor-pin puller that is useful to pull cotter pins that are secured in shafts, fly wheels or any other devices without bending or twisting or damaging them.
Date: October 31, 1916
Creator: Hayden, Jefferson B.
Item Type: Refine your search to only Patent

Draft-Equalizer.

Description: Patent for "devices for equalizing the draft where three or more draft-animals are used" (lines 8-10) to pull machinery, carriages, or wagons with illustrations included.
Date: September 16, 1902
Creator: Hayden, Jefferson B.
Item Type: Refine your search to only Patent

Lock for Sliding Doors.

Description: Patent for a new and improved lock. This design consists "[i]n a lock, the combination of the latch, the spring pressing upon it, and the trip-lever, provided with upper and lower arms and the former serving as a seat for the spring and the latter having a projection for the key to act upon" (lines 97-102).
Date: November 10, 1885
Creator: Hayden, Miles & Dixon, William Cason
Item Type: Refine your search to only Patent

Improvement in Bee-hives

Description: Patent for an improvement of a bee-hive enabling inspection of bees, protection of bees from moths, ventilation of the hive, and removal of honey without disturbing the brood-chamber.
Date: September 12, 1876
Creator: Hayden, Noah Dunken & Clapp, Amasa O.
Item Type: Refine your search to only Patent

Washing-Machine.

Description: Patent for an improved, simple, and efficient washing machine that consists of a casing, ribbed rollers, a belt with slats that is mounted on the rollers, a rubbing board, cross pieces on the rubbing board, and a counter-acting tension spring that holds a chord that is secured to the end of the board.
Date: February 7, 1893
Creator: Haydon, William Henry
Item Type: Refine your search to only Patent

Washing Machine

Description: Patent for a washing machine, that employs a rubbing belt and coacting rubbing-board, which allows for "effective adjustment of the rubbing-board to secure a heavy or light rubbing action without injury to the clothes" (lines 21-23)
Date: November 18, 1902
Creator: Haydon, William Henry
Item Type: Refine your search to only Patent
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