UNT Libraries Government Documents Department - 618 Matching Results

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Door-Lock

Description: 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.
Item Type: Refine your search to only Patent

Double Stroke Pumping Jack

Description: Patent for a double-stroke pumping jack with two pistons in the same cylinder "to discharge a steady stream of water therefrom" (line 12-13). This invention allows the pipe cylinder and pistons to be easily removed for repairs or cleaning.
Date: March 16, 1915
Creator: Winterborne, William H.
Item Type: Refine your search to only Patent

Cooling and Disinfecting Device.

Description: Patent for improvements in fluid cooling and disinfecting devices. The primary object of improvements is "to provide a simple, inexpensive and efficient device of this character which will be well adapted to the purpose for which it is designed."
Date: February 23, 1915
Creator: Womack, Samuel W.
Item Type: Refine your search to only Patent

Belt Attachment for Trousers.

Description: Patent for a new invention of belt loops for trousers that are located inside the waistband with "the loop in the middle of the back being located lower than the others, and a belt confined entirely within the trousers and secured to the trousers at the front only and at a point lower than the adjacent loops." (lines 71-77).
Date: September 28, 1915
Creator: Woodruff, William Douglas
Item Type: Refine your search to only Patent

Cotton-Gin

Description: Patent for improvements that may be added to a cotton gin to facilitate the removal of lint from the saw through the use of air suction, increasing ginning efficiency.
Date: January 5, 1915
Creator: Wooldridge, John
Item Type: Refine your search to only Patent

Ribbon Cabinet and Winding Machine.

Description: Patent for ribbon cabinet and winding machine, in which "ribbons, such as are used on typewriters, adding machines, and cash registers and line machines may be stored in bulk on large reels from which said ribbon may be transferred to individual machine spools when desired," (lines 17-20) "and whereby the desired kind of ribbon may be wound upon the machine spools as it is used." (lines 75-76)
Date: May 4, 1915
Creator: Worsham, Louis W.
Item Type: Refine your search to only Patent

Oil-Burner.

Description: Patent for an improved oil burner design "for use where high efficiency and greatest economy are desired in burning low grade oil" (lines 14-16), such as coal and crude oil. Includes illustrations.
Date: November 2, 1915
Creator: Wright, John F.
Item Type: Refine your search to only Patent

Wrench

Description: Patent for a wrench designed for right and left-handed users, makes for simpler use of tool by having fewer components than other more standards wrenches.
Date: February 9, 1915
Creator: Wulff, William F. & Wulff, M.
Item Type: Refine your search to only Patent

Necktie-Retainer

Description: Patent for necktie retainers that can be slipped into turndown collars while retaining neckties or scarfs against pulling down or moving sidewise, with illustration (lines 10-15).
Date: March 16, 1915
Creator: Yeager, Margaret Sanders
Item Type: Refine your search to only Patent

Switch Mechanism

Description: Patent for a switch mechanism, which is a improvement for the switch throwing mechanisms used for street railway systems. "The switch is set by means of tripping devices by the car and under control of the motorman."
Date: March 2, 1915
Creator: Yoakum, Hugh D.
Item Type: Refine your search to only Patent

Wagon-Tongue.

Description: Patent for "new and useful Improvements in Wagon-Tongues, of which the following is a specification, reference being had therein to the accompanying drawings." (lines 6-9).
Date: July 13, 1915
Creator: Zimmer, Henry C.
Item Type: Refine your search to only Patent
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