UNT Libraries Government Documents Department - 68 Matching Results

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Automatic Telephone-Exchange System.

Description: Patent for "a simple system and arrangement which is especially adapted for a telephone exchange, which enables the instruments to be connected by a single wire, which dispenses with the use of an operator at the central station, which has automatic means for registering the messages sent by each subscriber, and which is provided with an automatic switching device by means of which one subscriber may connect with any other" (lines 10-19).
Date: December 5, 1893
Creator: Serdinko, John
Item Type: Refine your search to only Patent

Axle-Lubricator.

Description: Patent for an axle lubricator that continuously lubricates an axle through a hollow nut in the end of the hub bushing, and the oil cup can be refilled easily and without removing the wheel.
Date: December 5, 1893
Creator: Miller, William J.
Item Type: Refine your search to only Patent

Buckle.

Description: Patent for a buckle meant for use with harnesses and "wherein the ordinary movable and hinged tongue is dispensed with, and a rigid stud or pointed projection is used in reversed positions at opposite ends of connecting loops" (lines 9-13).
Date: December 5, 1893
Creator: Odom, Plesant W.
Item Type: Refine your search to only Patent

Car-Coupling.

Description: Patent for a car coupling that operates automatically and without causing danger to the railway employees. It operates by a lever on the side or top of the car.
Date: December 5, 1893
Creator: Burglin, Bernhard
Item Type: Refine your search to only Patent

Car-Seal.

Description: Patent for a car seal, made of a long, thin, and narrow metallic strip. When it is looped through two parts of the car body, the ends can be pinned together with sealing irons. This car seal cannot be tampered with without visible evidence showing.
Date: December 5, 1911
Creator: Lawler, Claude B.; Bryan, William A. & Keller, John.
Item Type: Refine your search to only Patent

Chimney-Cowl.

Description: Patent for an elbow-shaped chimney cowl that is simple yet durable, which may be attached to chimneys of various sizes. It It has a vane that enables the cowl to turn and send smoke in the direction the wind is blowing. It also has a screen to cover the opening, which will prevent large sparks or partially burned materials from exiting the chimney.
Date: December 5, 1911
Creator: Powell, John T.
Item Type: Refine your search to only Patent

Conduit Electric Railway.

Description: Patent for an underground conduit electric railway meant to propel cars. The conduit can be drained and kept dry, and a trolley attachment protects the conduit from dirt and water as well.
Date: December 5, 1893
Creator: de Voe, William R.
Item Type: Refine your search to only Patent

Corn and Cotton Planter.

Description: Patent for an inexpensive and simply constructed corn and cotton planter that has an "improved mechanism for transmitting motion from the drive-wheel to the seed-disk; to so construct said mechanism as to operate only when the planter is being advanced and to remain inoperative when being drawn backward; to provide for a change of speed for the seed-disk so as to plant close together or far apart as may be desired; and to provide a new and improved hood or protector for the gear connection betw… more
Date: December 5, 1893
Creator: Schofield, James Drommond
Item Type: Refine your search to only Patent

Cotton Chopper.

Description: Patent for a new and improved cotton chopper. This design consists in "[t]he combination, with the hoe, of a standard, fulcrumed to a hinged adjustable bar, and connected by mechanism[s] with the ground-wheel" (lines 77-80).
Date: December 5, 1882
Creator: Collins, Laura Ann & Graham, William G.
Item Type: Refine your search to only Patent

Cultivator.

Description: Patent for a cultivator "in which all of the plow shanks will be adjustable to or from the center line of the frame in order that the cultivator may be adapted for working different kinds of plants" (lines 19-23). It is laterally adjustable, and the tongue is vertically adjustable.
Date: December 5, 1893
Creator: Mattijetz, Andreas
Item Type: Refine your search to only Patent
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