UNT Libraries Government Documents Department - 3 Matching Results

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Apparatus for Obtaining a Vacuum.
Patent for a new and improved vacuum. This design utilizes a liquid pump, plates, tubes and valves to make "about as perfect a vacuum . . . as can be obtained by an ordinary pump" (lines 53-55).
Compressed-Air Water-Elevator.
Patent for new and improved compressed air water elevator to lift water from reservoirs.
Cotton Planter and Cultivator.
Patent for improvements in cotton planters and cultivators by “attaching one or more levers to the axle which are pivoted to a frame below the axle, in which the levers are also connected with the caster-wheel in front, whereby the frame may be raised so as to elevate the cultivators above the earth.” (Lines 14-19) Illustration is included.
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