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Cotton-Chopper.

Description: Patent for a cotton chopper with an attachment for a guided chopper. This cotton chopper allows for the chopping device to engage the soil when the device is driven over various types of soil.
Date: January 9, 1912
Creator: Tedder, Morgan C.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Feed Device for Gin-Saw Sharpeners

Description: Patent for "a feeding device for the teeth which is independent of the filing devices, and which shall be so constructed that it will properly feed the teeth of saws of varying diameters, so as to give a regular and uniform size to each tooth without reference to the number of teeth in the saw" (lines 18-24).
Date: January 29, 1889
Creator: Behan, William & Friensehner, Paul
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Automatic Electric Alarm.

Description: Patent for an automatic electric alarm meant to be hooked up to an automatic dry-pipe sprinkler system, and protects against fire. The alarm goes off when the air in the sprinkler pipes falls below a predetermined level. This invention also signals an alert when there is a leak in the pipes, and is an improvement on the circuit-wires for similar alarms.
Date: January 7, 1896
Creator: Williams, George Bayley
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Chopping-Ax.

Description: Patent for an ax that is "provided with a poll made in two sections adapted to be clamped or secured to the handle and receive a removable bit or hardened section presenting the cutting edge" (lines 16-20).
Date: January 5, 1897
Creator: Crabtree, James G.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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