Acetylene-Gas Generator. (open access)

Acetylene-Gas Generator.

Patent for "improvement in acetylene-gas generators, and has for one object to provide an exceedingly- simple apparatus of this description in which the pipes and connections are closed , and thus protected from freezing by the effects of atmospheric changes; and a further object of my invention is to remove the possibility of an explosion taking place during the manipulation of the machine." (lines 9-17) including illustrations.
Date: July 31, 1900
Creator: Hartman, Gus
Object Type: Patent
System: The Portal to Texas History
Cultivator (open access)

Cultivator

Patent for a wheeled cultivator with spring tension, a frame that can be tilted, and pivoting wheel-axles. It is an improved version of their earlier patent, number 615,775, from December 13, 1898. The cultivator can straddle multiple rows and be drawn by various numbers of livestock, including illustrations.
Date: July 3, 1900
Creator: Zöllner, Matthes & Zöllner, Carl
Object Type: Patent
System: The Portal to Texas History
Draft-Equalizer. (open access)

Draft-Equalizer.

Patent for a Draft-Equalizer that will "provide a simple, convenient , and inexpensive device for equalizing the draft of wheeled cultivators." ( lines 14-16), Including illustrations.
Date: July 3, 1900
Creator: Zollner, Matthes
Object Type: Patent
System: The Portal to Texas History
Improvement in Farm-Fences. (open access)

Improvement in Farm-Fences.

Patent for a new and useful improvement in fence including instructions and illustrations.
Date: July 29, 1873
Creator: McKenzie, Winfield S.
Object Type: Patent
System: The Portal to Texas History
Occurrence, Availability, and Chemical Quality of Ground Water in the Cretaceous Aquifers of North-Central Texas: Volume 2 (open access)

Occurrence, Availability, and Chemical Quality of Ground Water in the Cretaceous Aquifers of North-Central Texas: Volume 2

The second volume of a two part report on the Creataceous aquifers in Texas. This volume contains information on water wells, water levels, and chemical analyses.
Date: July 1982
Creator: Nordstrom, Philip L.
Object Type: Report
System: The Portal to Texas History
Seeding-Machine. (open access)

Seeding-Machine.

Patent for a Seeding-Machine that serves as a flexible connector to cultivating devices or other frames related to seeding. In addition, the Seeding-Machine can be utilized independently, Illustrations included.
Date: July 3, 1900
Creator: Zollner, Matthes & Zollner, Carl
Object Type: Patent
System: The Portal to Texas History
Steam-Condenser (open access)

Steam-Condenser

Patent for a steam condenser. Illustrations included.
Date: July 13, 1909
Creator: Hartman, Gus
Object Type: Patent
System: The Portal to Texas History