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Envelop-Seal.

Description: Patent for an envelop seal composed of a metal piece with two arms, which are threaded through a hole in the envelop and pressed down into the sticky gum surface on the inside of the envelop flap.
Date: March 9, 1909
Creator: Bennick, Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Piston for Pneumatic Pumps.

Description: Patent for improvements in pistons for pneumatic pumps by using a combination of a tubular shell, a cylindrical valve, a conical aperture and a conical projection to fulfill the conditions required of a piston in pumps. Illustration is included.
Date: March 31, 1891
Creator: Robinson, Charles H.
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Partner: UNT Libraries Government Documents Department

Roller-Index.

Description: Patent for "improvements in combined spring-rollers and cabinet for ledger-index sheets," (lines 10-12) with instructions and illustrations.
Date: January 5, 1892
Creator: Nance, John D.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Fire-Arm.

Description: Patent for an improvement to adjusting rifle barrels and holding those adjustments in place. Includes illustrations.
Date: March 8, 1887
Creator: Alston, William F.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Crank-Pin-Box Connection.

Description: Patent for "improvements in the connections of single-acting pistons of compressor-engines and other engines of like character with one common crank-pin of the main shaft where two or more cylinders and pistons are employed." (Lines 13-18) Includes instructions and illustrations.
Date: May 26, 1896
Creator: Robinson, Charles H.
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Partner: UNT Libraries Government Documents Department

Book-Support.

Description: Patent for improvements in book support: "book are held in an upright position on the shelves" (lines 9-10).
Date: August 23, 1892
Creator: Muir, James Alfred
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Churn.

Description: Patent for an improvement to churns. "The purpose of the invention is to provide a novel churn structure embodying a pair of oppositely reciprocating dashers mounted in a common churn receptacle or body and operated from a single crank wheel" (lines 15-19).
Date: February 25, 1913
Creator: Burdeaux, Carey E. & Burdeaux, Charley W.
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Partner: UNT Libraries Government Documents Department

Combined Seed Planter and Cultivator.

Description: Patent for a new and improved combined planter and cultivator. This design has for its object "to facilitate the planting of seed and the cultivating of plants, and to promote convenience in adjusting the machines for the different kinds of work. The invention consists in the construction, arrangement, and combination of parts" (lines 21-27).
Date: November 25, 1884
Creator: Shannon, Thomas Brandon
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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