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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.
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
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