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in subjects: "railway signals"

Device for Placing Torpedoes.

Patent for "a device especially adapted for placing torpedoes on railroad tracks and at the same time fixing the torpedo in position, the work being accomplished in a simple and expeditious manner while the train is in motion, whereby one train following another may be signaled without stopping the first train, thus preventing rear end collisions." (Lines 7-15) Includes instructions and illustrations.

Date: April 23, 1895

Creator: Seamands, James D.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Railway Signal.

Patent for a new and improved railroad signal. This design consists in "[a] continuous electric conductor extending beside a railroad, a contact-maker borne by a train, an electric galvanic battery, a stationary transmitter, and a train provided with transmitting and receiving instruments on two or more members of the train and connected with the electric circuit in multiple arc . . . whereby a message can be sent to each member simultaneously" (lines 8-17).

Date: June 7, 1887

Creator: Armstrong, James Henry

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Railway Signal System

Patent for a railway signal system designed for use on curves to indicate when a train enters through the opposite end of the curve. Illustrations included.

Date: May 26, 1908

Creator: Gabbart, Elihu E.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Automatic Railway Signal.

Patent for a new and improved railroad signal. This design, "[w]hen the wheels of a passing train come in contact with the spring and bent end of the lever . . . said end is lowered or depressed, causing the movement in the same direction of the outer end of said lever, which, through the agency of the wire, will cause the ringing or sounding of the gong or bell as the wheels . . . come in contact with the end of the lever. . . .[A]fter the wheels of the last car of a train have passed the poin… more

Date: October 16, 1888

Creator: Ross, Albert James & Darter, John T.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Automatic Danger-Signal for Railroads.

Patent for a "device for indicating at railroad crossings and other points, the approach or departure of trains within any given distance of such crossing or with relation to any point where persons might come into dangerous proximity to the train if they were left unadvised by some such signal as this." (Lines 19-26) Includes instructions and illustrations.

Date: February 26, 1895

Creator: Lee, Horatio Grooms; White, John P.; Ball, Thomas & White, James L.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

Railroad Crossing Signal.

Patent for a railroad crossing signal. The device is created so that the highway signal can be automatically raised or lowered at the crossing by a passing train.

Date: December 13, 1921

Creator: Ridout, Horace J.

Item Type: Patent

Partner: UNT Libraries Government Documents Department