UNT Libraries Government Documents Department - 5 Matching Results

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Improvement in Plows.

Description: Patent for the improvement of the Rotary-Disk Cutters for plows that enable it to swivel and be supported by guides, including illustration.
Date: April 3, 1855
Creator: Hall, Thomas J.

Improvement in Cultivators.

Description: Patent for the improvement of the rotary cultivator with adjustable thinning-points and rotating cutter, including illustration.
Date: April 10, 1855
Creator: Morrel, A. H.

Improvement in Gang-Plows.

Description: Patent for the improvement of the gang plow by the plows arrangement and pivoted beams to be adjustable for convenience, including illustration.
Date: May 1, 1855
Creator: Hall, Thomas J.

Improvement in Cotton-Seed Planters.

Description: Patent for covering cotton seeds by using a hoe transversely with cams and slides with the main axle of the planter, including illustration.
Date: May 15, 1855
Creator: Morrel, A. H.

Mode of Straining Saws by Atmospheric Pressure.

Description: Patent for the improvement of the reciprocating saw by simplifying the arrangement of cylinders, pipes, and exhaust pumps to produce the necessary vacuum, including illustration.
Date: August 14, 1855
Creator: Brown, A. & Coffin, Abel, Jr.
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