Hydraulic Excavating Machine.
Description:
Patent for a new and improved hydraulic excavator. This design "consists in combining a submerged propeller-wheel with a water-jet tube having a flexible connection with the supply-pipe, so as to permit the water-jet tube to rise and fall . . . and also move laterally, whereby the tube will, when it meets an obstruction, yield sufficiently to prevent breaking, jarring, or injuring any of the parts, the water-jet tube and propeller bearing such relative positions to each other that the . . . obs…
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Date:
January 15, 1884
Creator:
Mansfield, Samuel M.
Item Type:
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Patent
Partner:
UNT Libraries Government Documents Department