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Artesian Well Borer.

Description: Patent for a new and improved artesian-well borer. This design "will be actuated by the weight of the connecting-rods and sink-wells in rock, gravel, earth, or sand without the use of water" (lines 13-16). It consists "[i]n an earth or rock auger, the combination, with a tube and a shank reciprocating in said tube and adapted to operate the auger, of dogs adapted to be projected through the tube by the reciprocation of the shank to engage the well-casing and hold the said tube from rotary movem… more
Date: January 20, 1891
Creator: Logan, Thomas H.
Item Type: Refine your search to only Patent

Rail-Joint.

Description: Patent for improvements in rail-joint by providing “a fastening means for rail-joints adapted to embrace the bottom and top sides of the foot and the sides of the web of the rail and to extend along the underside of the head, so as to brace the joint vertically.” (Lines 16-31) Illustration is included.
Date: October 23, 1900
Creator: Boyd, Henry M. & Redmon, Hope
Item Type: Refine your search to only Patent
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