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Hydraulic Excavating Machine.
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 . . . obstructions disengaged by the jet will be held in suspension . . . and carried off by the natural current" (lines 14-27).
Date:
January 15, 1884
Creator:
Mansfield, Samuel M.
System:
The Portal to Texas History
Railroad Switch.
Patent for a new and improved railroad switch. This design "consists in securing the short switch-rail to a long guard-rail, instead of pivoting it to the end of the sliding-rail or supporting-plate, the said guard-rail having the end remote from the short switch-rail spiked securely to the track, and the end carrying the switch-rail provided with lever or other moving devices whereby the switch-rails are thrown" (lines 21-29).
Date:
January 15, 1884
Creator:
Crowley, John H.
System:
The Portal to Texas History