UNT Libraries Government Documents Department - 3 Matching Results

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Adjustable Book Support.

Description: Patent for a new and improved book rest. This design consists "of an upright pivoted in a support or base, a sliding lower supporting cross-bar, an upper sliding supporting-bar, both bars having sockets upon their rear sides sliding upon the upright and provided with set-screws, and leaf-clamps consisting of a piece of spring doubled at one end to form slides sliding upon the arms of the upper cross-bar, forming curved yielding portions, forming transverse eyes at the other ends, having flat bl… more
Date: November 25, 1884
Creator: Johnson, William Oscar
Item Type: Refine your search to only Patent

Baling Press.

Description: Patent for a new and improved baling press. This design consists in "the combination of sill having uprights or fulcrums, levers mounted upon the latter, a follow-block connected to the inner ends of said levers by loose joints, a vertically-sliding follower, rods connecting the outer ends of said follower with the outer ends of the levers, and mechanism for operating the follower . . . the follower moving vertically above the sill, levers pivoted to uprights or fulcrums upon the sill, and havi… more
Date: February 5, 1884
Creator: Robburts, George W.
Item Type: Refine your search to only Patent

Violin Tail Piece.

Description: Patent for a new and improved tail piece for violins. This design "has for its object to raise or lower the pitch of the strings simultaneously, when required" (lines 10-12).
Date: June 10, 1884
Creator: Smith, John J.
Item Type: Refine your search to only Patent
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