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Carta general del Estado de Coahuila de Zaragoza : formada por Disposición del Gobierno del mismo Estado.

Description: Map shows early twentieth century roads, railroads, towns, mineral resources, haciendas, and ranches in Coahuila de Zaragoza [Coahuila] in northern Mexico. Includes legend and illustrations. Insets: "Zaragoza," "Coahuila Coal Co., washer plant & coke ovens," and "Compañía Metalurgica de Torreón, S.A." Relief shown by hachures and spot heights. Scale [ca. 1:500,000].
Date: 1905
Creator: Abbott, T. S.
Partner: University of Texas at Arlington Library

Electric Signal System for Electric Cars

Description: Patent for signal systems for electric railways where wires arranged in connection with the signal lamps at the ends of the blocks and on the cars will be lit to signal caution. There will also be a signal within the car if another moving car in the opposite direction enters the same block.
Date: December 26, 1905
Creator: Adams, Edwin J.
Partner: UNT Libraries Government Documents Department

Switch and Signal System

Description: Patent for a switch and signal system to be used for railroad signaling and to prevent trains on different tracks from colliding. (lines 12-22)
Date: December 12, 1905
Creator: Adams, Edwin J.
Partner: UNT Libraries Government Documents Department

Tire-Tightener.

Description: Patent for a Tire Tightener that tightens the tire by expanding the felly of the wheel.
Date: October 31, 1905
Creator: Alten, George P.
Partner: UNT Libraries Government Documents Department

Map of Baltimore.

Description: Map shows street names, public institutions, parks, cemeteries, select buildings, docks, and railroads; shows boundary line of February 1904 fire and old dock lines on inset. Inset: "Map of the business section of Baltimore." Scale [ca. 1:34,910].
Date: 1905
Creator: Americana Company
Partner: University of Texas at Arlington Library

Map of Milwaukee and vicinity.

Description: Map shows street names, parks, cemeteries, public institutions, docks, canals, railroads, select buildings, and the National Soldiers Home. Scale [ca. 1:44,000].
Date: 1905
Creator: Americana Company
Partner: University of Texas at Arlington Library

Map of Washington, D.C.

Description: Map shows streets, railroads, military facilities, the "Mall," public institutions, major buildings, bridges, canals, and neighborhoods. Scale [ca. 1:41,700].
Date: 1905
Creator: Americana Company
Partner: University of Texas at Arlington Library

Electrolytic Cell

Description: Patent for an electrolytic cell. "This invention relates to electrolytic cells especially adapted and intended for the electrolyzing of the sulfates of the alkalies to obtain sulfuric acid and alkaline hydrates" (lines 10-13). Illustration included.
Date: October 31, 1905
Creator: Anderson, Henry S.
Partner: UNT Libraries Government Documents Department

Spark-Arrester

Description: Patent for an improved and simplified spark arrester, which deflects sparks and other products of combustion back into the furnace or into a designated receptacle.
Date: October 10, 1905
Creator: Anderson, Oliver Lacy
Partner: UNT Libraries Government Documents Department

Railway Frog

Description: Patent for railway frog. This invention is an object to provide an improved mounting of the wing rail. Illustration included.
Date: May 30, 1905
Creator: Anderson, Sidney A.
Partner: UNT Libraries Government Documents Department

[Wilmarth House in El Paso]

Description: Photograph of the Wilmarth house in El Paso, Texas. The building has a raised porch with a walkway, railing, and columns wrapped around the side of the house. The yard has bare dirt.
Date: 1905~
Creator: Aultman, Otis A., 1874-1943
Partner: El Paso Public Library