Automatic Fire-Alarm. (open access)

Automatic Fire-Alarm.

Patent for the automatic fire alarm system relates to a fusing wire that reacts to any heat or fire by closing circuit inside of the battery resulting in sounding off the alarm, and thus, improving the fire-alarm system structure.
Date: March 15, 1904
Creator: Fred, Mason K.
Object Type: Patent
System: The Portal to Texas History
Regional Open Space Plan (open access)

Regional Open Space Plan

This report presents and applies the concept of utility open space to the Alamo Area Council of Governments region, and delineates utility open space needs, priorities, and opportunities.
Date: March 1973
Creator: Alamo Area Council of Governments
Object Type: Report
System: The Portal to Texas History
News Drop, March 2023 (open access)

News Drop, March 2023

Quarterly newsletter of the Edwards Aquifer Authority discussing news and activities of the organization as well as other information related to programs, projects, and topics related to water management and conservation.
Date: March 2023
Creator: Edwards Aquifer Authority (Tex.). Communications and Development Department
Object Type: Journal/Magazine/Newsletter
System: The Portal to Texas History
Printing by Lithography (open access)

Printing by Lithography

Patent for improvements in lithography printing that further help reproduce worn or difficult engravings, as well as transfer and make impressions into engravings with slight loss of effect, while also providing a means in which the engraving or stone can be prepared expeditiously and inexpensively. (lines 10-25)
Date: March 2, 1915
Creator: Ray, James
Object Type: Patent
System: The Portal to Texas History
Cotton Chopper and Cultivator. (open access)

Cotton Chopper and Cultivator.

Patent for improvement in cotton chopper and cultivator in “which the cultivator-blades may be readily adjusted to cultivator-blades may be readily adjusted to any desired distance from the row of plants that is being operated upon, and in which the number of chopping-hoes may be increased or diminished, so as to regulate the distance between the stands of cotton or the extent of each stand.” (Lines 13-19) Illustration is included.
Date: March 24, 1903
Creator: McAda, James Newton
Object Type: Patent
System: The Portal to Texas History