UNT Libraries Government Documents Department - 647 Matching Results

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Break-Out Pin.

Description: Patent for a modified break-out pin on an oil derrick which makes it easier to release a wrench for unscrewing pipes when done, but still holds the wrench in place while in use.
Date: October 21, 1919
Creator: Headrick, James O.

Bale Forming Press.

Description: Patent for a bale forming press to form bales of hay and automatically secure "baling wires around the bale as formed" (lines 13-14). It automatically stops the feeder when "the bale is being tied" (lines 19-20) and winds and automatically unwinds and winds the wire.
Date: February 26, 1918
Creator: Dudley, Andrew T.

Aerial Projectile

Description: Patent for an aerial projectile for use as an anti-infantry bomb, dropped by planes. Specifically, it is a fragmentation bomb hand dropped from planes that will not only deliver an explosive blast and the subsequent shrapnel, but deliver such a blast as to destroy itself so it cannot be reverse engineered.
Date: September 25, 1918
Creator: Bury, Thomas J. & Bury, Oney

Core-Barrel.

Description: Patent for a core barrel for use in rotary drilling of oil or water wells, that will allow for easy extraction of the upwardly extending column of material.
Date: October 14, 1919
Creator: Humason, Granville A. & Childs, William L.

Bale-Forming Machine.

Description: Patent for improvement on a bale forming machine that will operate easily, positively, and automatically. This invention described for forming and automatically securing wires around bales of hay and other like materials. It has a special object that is an improved form of clutch for connecting the wire twisters and needles and disconnecting them from a driving means. The clutch will permit the plunger in the bailing chamber to perform a predetermined number of strokes after the completion of t… more
Date: August 27, 1918
Creator: Freeman, Lawrence K.

Drill-Cutter.

Description: Patent for new and improved drill cutter for rotary boring drills including exact description and illustrations.
Date: November 4, 1919
Creator: Godbold, Louis A. & Fletcher, Harold W.

Closure for Refrigerators and the Like

Description: Patent is to "provide a simple and efficient construction of doors or lids for refrigerators, refrigerator cars, ice boxes, fireless cookers, telephone booths and the like, and as fire doors for storage houses, and wherever it is necessary or desirable to provide for facility of movement in opening or shrinking, due to head or cold, dampness or dryness, or other climatic or atmospheric or similar changes or conditions, while insuring an air tight, smoke, fire and bug proof, and heat insulating … more
Date: May 28, 1918
Creator: Seifert, John W. of Houston, TX

Foldable Stool

Description: Patent for a foldable stool "primarily designed for the purpose of attachment to a sewing machine, and which may be collapsed into a compact form and swung into position underneath the top of the machine and out of the way, when not in use" (lines 12-17). It is intended to be used with a desk, table, or other similar furniture.
Date: July 22, 1919
Creator: Hagner, Frederick Hayes

Conveyer System.

Description: Patent for "an improved conveyer system that will take a package and automatically carry it to any selected point along the system, discharge the package and return to the starting point" (lines 8-12), including illustrations.
Date: March 18, 1919
Creator: Hanak, Edward

Charge Firing Pin

Description: Patent for a new improvement in Charge - Firing Pens by John N. Swanson. Designed for bombs and torpedoes to create a simple firing pen mechanism that is simple, yet prevents accidental detonation of munitions
Date: January 14, 1918
Creator: Swanson, John N.
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