UNT Libraries Government Documents Department - 30 Matching Results

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Automatic Trailing Device

Description: Patent for an automatic trailing device. This device is made to "successfully follow the tracks of the front vehicle without the use of a driver on the vehicle in tow" (lines 14-17).
Date: February 24, 1920
Creator: Sloan, Charles Lee
Item Type: Refine your search to only Patent

Combined Rat and Mouse Trap.

Description: Patent for a cheaper and more effective trap that displays live bait but is unreachable to animals. The trap will make it "impossible for animals to escape after they have been captured" (lines 26-28), including illustrations.
Date: March 7, 1916
Creator: Bevers, William S., Jr.
Item Type: Refine your search to only Patent

Envelop.

Description: Patent for an envelope that employs a lock and seal mechanism to increase security of contents. The envelope cannot be opened without tampering or mutilating the envelope.
Date: January 26, 1915
Creator: Wallace, Curtis C.
Item Type: Refine your search to only Patent

Fumigator.

Description: Patent for an improved fumigator that has a furnace, a fan casing, a fan inside the casing, a discharge in the casing, an air chamber with dampered openings between the furnace and the casing, a perforated partition between the furnace and the chamber, and a nozzle and hose coming from the driving device.
Date: August 21, 1894
Creator: Horne, Edward G.
Item Type: Refine your search to only Patent

Nut-Lock

Description: Patent for a nut lock that can be easily applied and detached from a bolt. Will lock screws in place to avoid accidental rotation of the bolt and is less expensive to make.
Date: February 16, 1915
Creator: Boren, W. E.
Item Type: Refine your search to only Patent

Planter.

Description: Patent for a Planter that is adjustable used to drops seeds, forming a covered furrow so that sub-soil may be plowed.
Date: March 6, 1917
Creator: Baker, Gustavus A.
Item Type: Refine your search to only Patent

Safety-Stirrup.

Description: Patent for a safety stirrup which has a locking mechanism, which will open if a rider is thrown from the saddle to release the foot from the stirrup.
Date: March 9, 1909
Creator: Batson, Joseph A.
Item Type: Refine your search to only Patent
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