UNT Libraries Government Documents Department - 11 Matching Results

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Bolt Lock.

Patent for a new and improved bolt-lock. This design is for a flat piece of metal (the "lock") that secures the head of the bolt so that, when the adjoining nut becomes rusted, the nut and bolt can be successfully separated without damaging the surrounding material.

Date: October 18, 1881

Creator: Berry, John T.

Item Type: Patent

Improvements in Escapements for Time-Pieces

Patent for inprovements in escapements for time-pieces involving levers and duplex escapements as a way of improving force and regularity in time-pieces. Patent gives instructions and provides illustrations.

Date: October 21, 1879

Creator: Laughlin, Abner G.

Item Type: Patent

Hame-Fastener.

Patent for a simple and inexpensive hame-fastener that has "two adjustable parts, one of which is provided with hooks to be engaged by means on the other part" (lines 11-13). The invention is adjustable and does not unlock or disengage accidentally but can easily be unlocked on purpose.

Date: October 15, 1895

Creator: Anderson, Lee

Item Type: Patent

Gate-Closer.

Patent for a simple and inexpensive gate closer that can be used with any gate and is easy to use. It consists of an arm that is secured to the gate, an adjustable wedge that sits between the arm and the gate, a weight connected to the arm, fastening devices, a slot on the wedge, pulleys mounted in a casing, and chords.

Date: October 10, 1893

Creator: Dickson, Thomas C.

Item Type: Patent

Cotton Seed Planter.

Patent for a new and improved planter. This design consists in "the combination, with the side bars of the main frame, the plow-standard connecting the front ends thereof, and the covering board connecting the rear ends of the side bars, of the handles secured to the side bars near the front end of the machine, the rectangularly-bent brace-bar secured to the side bars and to the handles, and the centrally-bent brace-bar secured to the side bars and the brace-bar" (lines 86-95).

Date: October 15, 1889

Creator: Secrest, Louis Evin

Item Type: Patent