UNT Libraries Government Documents Department - 105 Matching Results

Search Results

Results: 1 - 24 next

Improvement in Steam-Engines.

Description: Patent related to "improvements in steam-engines. The object...is to devise means whereby the valves may be actuated automatically without the employment of exterior mechanisms by the use of exhaust-steam" (lines 17-22). Includes instructions and illustration.
Date: July 1, 1879
Creator: Garlock, William H. & Cooke, Richard
Item Type: Refine your search to only Patent

Improvement in Spark-Arresters.

Description: 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… more
Date: July 15, 1879
Creator: Lochner, Casper F.
Item Type: Refine your search to only Patent

Improvement in Car-Couplings.

Description: Patent for an "improvement in car-couplings; and it consists in the arrangement and combination of devices whereby the pin is supported in a raised condition; also in a spring-slide for holding up the link ready for coupling with another car." (lines 13-18)
Date: July 2, 1878
Creator: Gassaway, John H.
Item Type: Refine your search to only Patent
Back to Top of Screen