Resource Type

Improvement in Spark-Arresters. (open access)

Improvement in Spark-Arresters.

Patent for improved construction of spark-arresters, "so that they will be more efficient, and yet simple in construction and not liable to get out of repair; and the invention consists of a metallic circular cone, with winding or arched flanges or wings, which extend toward the side of the shall, and they are covered by a plate, to the upper side of which a perforated cylinder is attached, so that all the sparks are arrested and thoroughly extinguished, while the smoke can pass out through the perforations." (Lines 6-16) Includes instructions and illustrations.
Date: July 15, 1879
Creator: Lochner, Casper F.
System: The Portal to Texas History
Improvement in Apparatus for Photographing Children (open access)

Improvement in Apparatus for Photographing Children

Patent for an improvement in machines for taking Photographs of small children.
Date: July 4, 1871
Creator: Sloan, William W.
System: The Portal to Texas History
Improvement in Grinding-Mills. (open access)

Improvement in Grinding-Mills.

Patent for the improvement of grinding-mills, including a description and illustration.
Date: July 23, 1872
Creator: Loy, George W. & Baker, Francis C.
System: The Portal to Texas History