Means for Ventilating and Expelling Water from Mines. (open access)

Means for Ventilating and Expelling Water from Mines.

Patent for a ventilation and water pumping system for mines, which pumps out water underground, removes foul air and gases, and keeps the mine supplied with fresh air through pressurizing the air in the mine.
Date: July 21, 1908
Creator: Durack, Patrick H.
System: The Portal to Texas History
Safety Device for Steam-Boilers. (open access)

Safety Device for Steam-Boilers.

Patent for a safety device for steam boilers, which activates an alarm when water levels are too high on the fuse box that gives an earlier warning, does not allow the fuse box to be changed without the chief engineer being alerted, and prevents false alarms.
Date: July 14, 1908
Creator: Smith, James E.
System: The Portal to Texas History