3 Matching Results

Search Results

Results: 1 - 3

Valve

Description: Patent for an automatic valve for use upon hydraulic or suction dredges to prevent sore material such as clay, sand and mud from preventing the efficient use of the dredge sure to the closing of heavy material in the mouth of the dredge. The valve is intended to supply water to flush out the mouth of the dredge.
Date: June 12, 1917
Creator: Miller, Henry L.
Partner: UNT Libraries Government Documents Department

Sand-Trap

Description: Patent for a sand-trap that will prevent the accumulation of sand by automatically removing the sand from the canals.
Date: unknown
Creator: Hood, James M,
Partner: UNT Libraries Government Documents Department

Canal or Ditch Digging Machine.

Description: Patent for a canal or ditch digging machine that has a carriage and a mechanism that draws the carriage across the ground, and a boring-tool beneath the carriage. The boring-tool can bore at an adjustable angle.
Date: August 20, 1895
Creator: Hoefs, Otto
Partner: UNT Libraries Government Documents Department
Back to Top of Screen