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Improvement in Steam-Engines.

Description: Patent related to "improvements in steam-engines. The object...is to devise means whereby the valves may be actuated automatically without the employment of exterior mechanisms by the use of exhaust-steam" (lines 17-22). Includes instructions and illustration.
Date: July 1, 1879
Creator: Garlock, William H. & Cooke, Richard
Partner: UNT Libraries Government Documents Department

Improvement in Pumps.

Description: Patent relating to "improvements in double-acting pumps. The object is to devise a pump...[so] as to allow the admission of water at one end of and its discharge at the other" (lines 16-24). Includes instructions and illustration.
Date: July 1, 1879
Creator: Garlock, William H. & Cooke, Richard
Partner: UNT Libraries Government Documents Department

Sweeping Machine.

Description: Patent for a new and improved sweeping machine. This design consists, "with the frame mounted upon supporting-wheels at its front and rear ends and having the rotating rear axle, of the vertically-adjustable revolving brush receiving motion from the said axle, and a dust pan or receptacle having laterally extending pins or plugs, whereby it is supported detachably upon the frame of the machine in front of the revolving brush" (lines 13-21).
Date: July 1, 1890
Creator: Le Tellier, John H.
Partner: UNT Libraries Government Documents Department
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