UNT Libraries Government Documents Department - 101 Matching Results

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Carpenter's Jack

Description: Patent for a carpenter's jack specifically designed for "carpenters or workmen in laying flooring, putting up siding, or any similar operations" (lines 9-11).
Date: October 24, 1905
Creator: McCulley, Perry J.

Cell Tester

Description: Patent for a portable device that can test battery cells to determine if they are outputting the normal current, of if voltage has dropped.
Date: October 24, 1916
Creator: Luthy, Joseph O.

Hay-Press.

Description: Patent for a simple and effective hay-press that consists of a plunger, a spring actuated toggle lever that is connected to the plunger, a toothed segment on the lever, a draft attachment with a toothed section that lines up with the toothed segment on the lever, a tongue, a disk connected to the tongue, a cross bar on the frame, plates attached to the cross bar, a pitman, a brake, and a mechanism that throws the brake into action.
Date: October 24, 1893
Creator: Wilson, Albert G.

Improvement in Ironing Apparatus.

Description: Patent for "a machine for ironing clothing by means of a revolving heated roller, under which is passed a reciprocating table, on which the clothing is placed." (Lines 7-11) Includes instructions and illustrations.
Date: October 24, 1876
Creator: Bailey, Charles F. & Perrenot, George F.
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