UNT Libraries Government Documents Department - 10 Matching Results

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Improved Medicinal Preparation.

Description: Patent for improvements made the medicinal preparations generally used for poultices. The patented improvement involves the application of dried and powdered leaves, stalks, and joints of the cactus opuntia or cockinifer.
Date: April 7, 1868
Creator: Lege, Charles L.

Improvement in Gun-Locks.

Description: Patent for gun locks: "This invention relates to the arrangement of a complete hair trigger for Colt's revolving pistols, which is so constructed that it may be adjusted to anyone of said pistols without the assistance of a gunsmith, the only tool required for the purpose being a screw driver." (lines 21-26.)
Date: September 11, 1866
Creator: Schenck, F.

Improvement in Hair-Triggers.

Description: Patent for improvement in fire-arms by arranging a hair-trigger on to a fire-arm that have a guard and a trigger without alternation of the interior mechanism of the gun-lock; it is not necessary for the application of a fly in the hammer to prevent the catching of the trigger in the rest-notch of the hammer. (Lines 11-19) Illustration is included.
Date: August 24, 1869
Creator: Schenck, F.

Improvement in Needle-Threaders for Sewing-Machines.

Description: Patent for improvement in needle-threaders for sewing machines by using an “eyelet-frame that formed by two equal parallelopipeds. These parallelopipeds are being kept together by two springs and may be separated by pressing the pins toward each other.” (Lines 32-35) “The axis of a conical eyelet will be laid in the joint planes of the parallelopipeds, its apex in the front side, its basis in the opposite side of the eyelet-frame, through which eyelet the thread has to pass when the instrument is used and applied to the machine-needle.” (Lines 37-42) This instrument can be used with curved or straight needles. Illustration is included.
Date: April 20, 1869
Creator: Thielepape, Wilhelm C. A.

Improvement in Seed-Planters.

Description: Patent for improvement in seed-planters by using a combination of lock-lever, bars, set-screw and a tongue to “construct accurate planters in which the planting may be readily done in exact check row, and which will allow the dropping device to be instantly thrown into or out of gear when desired.” (Lines 16-19) Illustration is included.
Date: April 13, 1869
Creator: Herrin, I. F.