Resource Type
Partner
UNT Libraries Government Documents Department
19,460
UNT College of Arts and Sciences
56
UNT College of Engineering
19
Private Collection of J. K. Johnson
4
Grayson College Foundation
1
Moody Medical Library, UT
1
Private Collection of Mike Cochran
1
University of Dallas
1
UNT Libraries Special Collections
1
UNT College of Information
1
Collection
Texas Patents
18,572
Office of Scientific & Technical Information Technical Reports
887
UNT Scholarly Works
76
Rescuing Texas History, 2019
5
The Civil War and its Aftermath: Diverse Perspectives
1
Rescuing Texas History, 2017
1
Texas Cultures Online
1
Technical Report Archive and Image Library
1
TRAIL Microcard Collection
1
T. V. Munson Collection
1
States
Decade
Month
Door Hanger
Patent for a door hanger for a sliding door, more specifically a car door.
Date:
June 17, 1913
Creator:
Mock, Michael
System:
The Portal to Texas History
Door-Operator.
Patent for a device that is a means of mounting a train car door by which it may be easily opened or closed, and especially easily fixed when stuck.
Date:
August 26, 1913
Creator:
Gradick, Wiley, Sr.
System:
The Portal to Texas History
Door-Securer
Patent for a portable device that can produce a secure room by securing the door.
Date:
February 8, 1916
Creator:
Simmons, Jesse W.
System:
The Portal to Texas History
Draft Forming Device for Furnaces
Patent for draft forming device for furnaces that uses steam to pass currents of air through furnaces
Date:
January 11, 1916
Creator:
Milner, J. D.
System:
The Portal to Texas History
Draft Attachment For Cultivators.
Patent for draft attachments for cultivators that would enable four to five horses to be used without having to alter the construction of conventional cultivators.
Date:
June 9, 1914
Creator:
Poff, Blan
System:
The Portal to Texas History
Door Opener
Patent for "improved door opener for automobiles constructed particularly to enable the driver to control any of the doors and open any such selectively at pleasure without leaving his seat." (lines 8-12).
Date:
June 8, 1915
Creator:
Hyland, George O.
System:
The Portal to Texas History
Draft Equalizers
Patent for a draft equalizer that permits either three horses to travel at one side of the beam and two at the other, or three horses at one side of the beam and one at the other. Includes instructions and illustrations.
Date:
September 8, 1914
Creator:
Dudley, Thomas J.
System:
The Portal to Texas History
Drafting Machine
Patent for a machine designed for constructing or drafting geometric figures, including illustrations.
Date:
March 21, 1916
Creator:
Kreisle, Edwin Clinton & Hawkins, Lyndsay Dickason
System:
The Portal to Texas History
Draft-Gear for Railway Cars
Patent for a draft gear for railway cars that allows a simple and efficient means of repairs or substitutions of sills or beams that may be done without dissociating the draft bar so that a car may not be out of commission for a considerable length of time.
Date:
August 17, 1915
Creator:
Moorman, James M.
System:
The Portal to Texas History
Door Hanger.
Patent for a car door hanger that will take the weight of the door off the supporting rollers and the track and apply a braking action to the track that will prevent the door from unnecessarily shifting. Includes instructions and illustrations.
Date:
September 15, 1914
Creator:
Kinard, Chester E.
System:
The Portal to Texas History
Draft-Equalizer
Patent for a draft-equalizer which is an apparatus adapted to be used for, "three draft animals, one pulling against two animals.
Date:
March 2, 1915
Creator:
McCall, Robert A.
System:
The Portal to Texas History
Door Operating and Locking Device.
Patent for an electric door or gate operating and locking device that allows for automatically opening and closing a door or gate and locking it when it is open or closed. This device may be turned off if necessary to allow for manually moving the door or gate and may be installed cheaply in preexisting structures.
Date:
May 18, 1915
Creator:
Pitts, Hood
System:
The Portal to Texas History
Door Controlled Electric Switch
Patent for an improved switch attachment that will allow a room, vault, or compartment to be kept lighted when door is open or closed, but may also be shut off when leaving the room.
Date:
October 17, 1916
Creator:
Kreter, Otto
System:
The Portal to Texas History
Draft Device.
Patent for a drafting device for animals. It allows for the owner to place more animals on one side of the device than the other, but still allows the device to remain on the desired path.
Date:
November 24, 1914
Creator:
Mitchell, James R.
System:
The Portal to Texas History
Drapery Support and Form
Patent for a new kind of drapery system that keeps the drapes pleated neatly and allows drapes to open and close easily with metal fasteners.
Date:
February 17, 1914
Creator:
Jantzen, Marius
System:
The Portal to Texas History
Door-Hinge.
Patent for new modification in a door hinge, its construction and working details.
Date:
June 6, 1916
Creator:
Cunningham, Melville Boyd
System:
The Portal to Texas History
Distributing Switch Mechanism for Electric Signs and Similar Devices
Patent for "improvements in distributing switch mechanism for electric signs and similar devices" (lines 5-8)
Date:
July 21, 1914
Creator:
Miller, Leonard
System:
The Portal to Texas History
Drafting-Tool.
Patent for a drafting ruler that does not need to be turned end over end to be used.
Date:
May 15, 1917
Creator:
Faas, Walter
System:
The Portal to Texas History
Door-Lock
Patent for a lock which can be attached to either a right-hand or left-hand door and operated from either side. When locked from the inside, a shutter will prevent the door from being unlocked from the outside until released again from the inside.
Date:
January 12, 1915
Creator:
Wilson, Ira W.
System:
The Portal to Texas History
Drafting-Pen.
Patent for a new drafting-pen which includes a tie member that unites and resists separation of the blades of a pen, yet the tie member is movable and allows the blades to separate.
Date:
April 2, 1912
Creator:
Smith, Edwin R.
System:
The Portal to Texas History
Display-Cabinet
Patent for a display cabinet. Illustrations are included.
Date:
March 22, 1911
Creator:
Douglass, John A.
System:
The Portal to Texas History
Disk Plow-Scraper.
Patent for a disk plow scraper.
Date:
November 15, 1910
Creator:
Shackelford, James J.
System:
The Portal to Texas History
Display Cabinet
Patent for display cabinet. The invention consists of outer and inner casings that are accessible via door. Illustrations included.
Date:
May 30, 1911
Creator:
Smith, Ernest & Nelson, Axel
System:
The Portal to Texas History
Dish-Washer
Patent for a combined dishwasher and drainer.
Date:
April 1, 1902
Creator:
Ervin, Ida
System:
The Portal to Texas History