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Automatic Dumping Cage

Description: Patent for a new and improved automatic dumping cage. This invention is to "use in the shafts of coal and other mines"(line 9-10).
Date: November 30, 1897
Creator: Gordon, William K.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Steam-Pressure and Water-Level Recorder for Boilers.

Description: Patent for a division on the inventor's previous patent application (No. 404,658). This patent is for a device that records steam pressure and water levels in boilers, and is meant "to provide a new and improved steam pressure recorder for boilers, which is simple and durable in construction, very effective in operation, and arranged to automatically record the pressure of the steam in the boiler for a given period" (lines 14-19).
Date: April 18, 1893
Creator: Lewis, William Morgan
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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