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Spark-Plug

Description: Patent for a spark plug that has a cooling method for keeping the porcelain section from cracking and a better way of keeping it clean.
Date: June 27, 1911
Creator: Harpst, Fred E.
Partner: UNT Libraries Government Documents Department

Spark-Gap Muffler.

Description: Patent for a spark gap muffler that muffles the sound of a spark jumping a gap between wires in wireless telephone and telegraph systems.
Date: June 27, 1911
Creator: Johnson, Maurice Bernays
Partner: UNT Libraries Government Documents Department

Speed-Changing Gear.

Description: Patent for an automatic speed changing gear for trains.
Date: October 27, 1908
Creator: Mayo, William C. & Houlehan, John
Partner: UNT Libraries Government Documents Department

Spark-Arrester.

Description: Patent for a spark aresster that is designed to prevent the discharge of sparks from a flue, particularly flues for small stoves used in army tents.
Date: January 27, 1920
Creator: Ashby, Bert A.
Partner: UNT Libraries Government Documents Department

Speed-Recorder.

Description: Patent for recording instruments to use in connection with automobiles to record the speed of conveyance during the period of travel.
Date: July 27, 1920
Creator: Bowdish, Harry A.
Partner: UNT Libraries Government Documents Department

Planting Attachment For Cultivators.

Description: Patent for certain new and useful improvements in corn and cotton planting attachments for cultivators, including instructions and illustrations.
Date: February 27, 1900
Creator: Weddle, John Crit
Partner: UNT Libraries Government Documents Department

Process of Making Soft Peanut Candy

Description: Patent for a soft peanut candy recipe with ingredients listed.
Date: August 27, 1907
Creator: Green, Little J. & Heyn, Henry
Partner: UNT Libraries Government Documents Department

Playing-Cards.

Description: Patent for a card game that aims to teach players the workings of the electoral college. There are 208 cards, divided into four types: "eagle," "star," "banner," "flag," and gathering one of each type gives the player an electoral vote. The cards feature presidential candidates of the mid-1800s.
Date: March 27, 1906
Creator: Noonan, James Harrison
Partner: UNT Libraries Government Documents Department

Protecting Shores.

Description: Patent for certain new and useful improvements in protections for river banks and coast washing, including instructions and illustrations.
Date: September 27, 1898
Creator: Brooks, Samuel W.
Partner: UNT Libraries Government Documents Department

Pump Spout

Description: Patent for a pump spouts. Illustration included.
Date: April 27, 1909
Creator: Hutchison, James Oliver
Partner: UNT Libraries Government Documents Department

Pneumatic Tool

Description: Patent for a Pneumatic Tool that is capable of operating automatically at a very high speed." (line 20)
Date: May 27, 1913
Creator: Townsend, Isaac W.
Partner: UNT Libraries Government Documents Department

Press

Description: Patent for a press that is related to "letter or book presses" and it has "a simple and comparatively inexpensive construction, and which shall at the same time be effective and strong and convenient for use" (p. 2).
Date: August 27, 1889
Creator: Kay, William V.
Partner: UNT Libraries Government Documents Department

Platform for Harvesters.

Description: Patent for a new and improved platform for harvesters. This design "has particular reference to the platform thereof or that portion designed to receive the grain as it is cut by the reaping mechanism; and among the main objects in view is to provide a platform located in rear of the reaping mechanism that is capable of being contracted and extended, and also to provide other parts that may be withdrawn inward, whereby the machine, as a whole, is decreased in width, and its passage through farm… more
Date: May 27, 1890
Creator: Lewis, Thomas E.
Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for an inexpensive and simple plow that has an improved braces placement which makes the plow very rigid. The blade angle is also adjustable and the plow can be a single or double plow.
Date: March 27, 1894
Creator: Edge, John S.
Partner: UNT Libraries Government Documents Department

Pumping Apparatus.

Description: Patent for a pumping apparatus that has "certain improvements in that class of pumps known as ejectors for raising liquids out of wells by means of compressed air or stream" (lines 9-12). The pump quickly and easily raises large amounts of water and is an improvement on a patent previously granted to the inventor (No. 474,819).
Date: March 27, 1894
Creator: Nevill, William Birt
Partner: UNT Libraries Government Documents Department

Purifying Oils

Description: Patent that converts low grade petroleum into higher grade petroleum. The process warms aluminum chlorid with petroleum material in a nonviolent way to make a purifying oil.
Date: August 27, 1918
Creator: McAfee, Almer M.
Partner: UNT Libraries Government Documents Department

Process of Purifying Paraffin.

Description: Patent for improvements in the process of purifying paraffin wax.
Date: August 27, 1918
Creator: McAfee, Almer M.
Partner: UNT Libraries Government Documents Department

Improvement in Securing Iron Bands on Cotton-Bales.

Description: Patent for the improvement of cotton-bale fastenings by using a metal plate and a flange to fasten and unfasten the bale without any other tools and with ease. Including illustration.
Date: September 27, 1859
Creator: Pyle, C. W.
Partner: UNT Libraries Government Documents Department

Stirrup-Spur.

Description: Patent for a certain new and useful improvement in stirrup spurs, including instructions and illustrations.
Date: February 27, 1900
Creator: Coleman, Thomas G.
Partner: UNT Libraries Government Documents Department

Method of Stretching and Securing Wire.

Description: Patent for a "new method of stretching and securing wire" (line 6).
Date: April 27, 1920
Creator: Coulter, Thomas H.
Partner: UNT Libraries Government Documents Department

Torch or Burner

Description: Patent for a torch or burner for use in burning brush or foliage, which uses a pressure-controlled liquid fuel tank that maintains a steady flow of fuel at the correct pressure.
Date: April 27, 1920
Creator: Hardt, Benjiman F. & Taylor, Samuel T.
Partner: UNT Libraries Government Documents Department

Mail Carrier or Container.

Description: Patent for a mail carrier designed with a ratchet and clamp to hold mail securely while also allowing for quick extraction of the mail.
Date: April 27, 1920
Creator: Blocker, Leck H.
Partner: UNT Libraries Government Documents Department

Process for Treating Cotton-Seed

Description: Patent for "new and useful Improvements in Processes for Treating Cotton-Seed"(lines 6-8), which expresses oil from cotton and neutralizes it with "alkali... and precipitating solid matter"(lines 26-27).
Date: May 27, 1919
Creator: Fee, Horatio A. & Aeveaenes, Garciea H.
Partner: UNT Libraries Government Documents Department
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