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in place name: "United States - Texas - Harris County - Houston"  
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Nut Lock.

Description: Patent for a new and improved nut lock. This design "is to provide a spring-washer of great stiffness and strength, which, when applied to a bolt beneath a nut, serves to prevent the latter from turning, and also acts to firmly hold the parts of a rail-joint after there has been some wear thereof, thus keeping the bolts from becoming loose and rattling from such wear" (lines 13-20).
Date: June 10, 1884
Creator: Campbell, Eli F.; Noble, Laroy C. & Howe, Milton G.
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Partner: UNT Libraries Government Documents Department

Railway Signal.

Description: Patent for a new and improved railroad signal. This design consists in "[a] continuous electric conductor extending beside a railroad, a contact-maker borne by a train, an electric galvanic battery, a stationary transmitter, and a train provided with transmitting and receiving instruments on two or more members of the train and connected with the electric circuit in multiple arc . . . whereby a message can be sent to each member simultaneously" (lines 8-17).
Date: June 7, 1887
Creator: Armstrong, James Henry
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Partner: UNT Libraries Government Documents Department

Plow.

Description: Patent for a plow with a convex moldboard and a landside, or shoe, which in combination acts as a turning plow and subsoiler.
Date: June 12, 1883
Creator: Kennedy, George Finlay
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Partner: UNT Libraries Government Documents Department

Combination Level.

Description: Patent for a new and improved combination level. This design "is broadly to provide a combined carpenter's and surveyor's level of a cheap, simple, light, and durable form, and adapted for use as a carpenter's plumb and level or a surveyor's level interchangeably without the removal or change of any of its parts; and to this end in consists in the conformation and arrangement of parts" (lines 19-26).
Date: June 12, 1883
Creator: Sands, James Harley
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Partner: UNT Libraries Government Documents Department

Brick-Machine

Description: Patent for "that class of brick-machines usually termed 'dry-press machines,' in which clay is taken from the bank and passed into molds in a revolving wheel" (lines 15-19) and "consists more particularly in the construction of details and combination of parts" (lines 23-25) including instructions and illustrations.
Date: June 15, 1880
Creator: Johnson, Richard M.
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Partner: UNT Libraries Government Documents Department
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