UNT Libraries Government Documents Department - 53 Matching Results

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Coupling-Pin.

Description: Patent for a coupling pin for railroad cars, which prevents the coupling from coming loose accidentally by having a key which locks the coupling in place and can only be undone by the cars operating systems. when it is time to disconnect the car.
Date: July 23, 1907
Creator: Yeiser, John Clarke
Item Type: Refine your search to only Patent

Animal-Poke

Description: Patent for an animal poke worn on the head of cattle to prevent jumping outside the field which allows the cow to graze freely while wearing the poke.
Date: July 16, 1907
Creator: Seay, Mark Machel
Item Type: Refine your search to only Patent

Coin-Controlled Vending Machine

Description: Patent for a coin operated vending machine for selling cigars or other objects in round or square packages which can deliver the correct number of products regardless of how many coins are inserted into the machine to equal the selling price.
Date: July 16, 1907
Creator: Wilson, John C.
Item Type: Refine your search to only Patent

Apparatus for Testing Errors of Refraction

Description: Patent for an eye testing device that has a movable lens, a measuring device for correction, and two different cards with test type on them which are fed into the machine during testing for astigmatism and myopia, presbyopia, and hyperopia to determine the level of correction needed in glasses.
Date: July 2, 1907
Creator: Bahn, Gustavus Adolphus
Item Type: Refine your search to only Patent

Bat-Forming Apparatus.

Description: Patent for a machine for use in making cotton batting which takes the cotton in by an air current and then distributes it evenly throughout the mold for the batting. Illustration is included.
Date: July 2, 1907
Creator: Haynes, Daniel
Item Type: Refine your search to only Patent

Mail-Bag Fastener.

Description: Patent for a mail bag fastener which automatically locks when closed and can only be opened with a key.It also holds the mail bag open when letters are being withdrawn.
Date: July 16, 1907
Creator: Barr, George Taylor
Item Type: Refine your search to only Patent

Insect-Trap.

Description: Patent for a trap for bedbugs made of pine wood with many nooks and crannies and springs attached to either side of the wooden block. It can be put on the bed frame and bedbugs hide in its dark recesses during the day, and then the trap can either be hit to close the springs and crush the bugs or put into hot water to drown them.
Date: July 16, 1907
Creator: Mattingly, Benjamin Joseph
Item Type: Refine your search to only Patent

Well-Bucket.

Description: Patent for a well bucket with a float attachment to prevent the bucket from hitting the bottom of the well and stirring up sand or mud.
Date: July 30, 1907
Creator: Thomas, Eliga Moran
Item Type: Refine your search to only Patent

Washboard

Description: Patent for a washboard designed to hold the soap in a manner in which the clothes will automatically be soaped while being rubbed on the board. Illustrations included.
Date: July 2, 1907
Creator: Wilkins, Willis A.
Item Type: Refine your search to only Patent
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