UNT Libraries Government Documents Department - 29 Matching Results

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Car-Brake

Description: Patent for "new and useful Improvements in Car-Brakes" (lines 6-7) relating to a railroad brake operating mechanism, including instructions and illustrations.
Date: February 6, 1912
Creator: Klasing, Augustus Frederick
Item Type: Refine your search to only Patent

Transplanter

Description: Patent for a transplanter to move a rooted cotton plant and the soil around it to a different location. Illustrations included.
Date: September 17, 1912
Creator: Matthews, James T.
Item Type: Refine your search to only Patent

Electric-Lamp Attachment.

Description: Patent for an electric-lamp attachment, "the primary object of this invention being the provision of a lamp socket attachment of supporting means in combination with a switch, whereby the current energizing the filament of an incandescent lamp is so controlled as to produce different degrees of incandescence in the filament and thus produce different degrees of radiance to produce a dim or a highlight as may be desired" (lines 9-18). Illustrations included.
Date: April 23, 1912
Creator: McNeel, William Pinkney
Item Type: Refine your search to only Patent

Wireless Break-Key

Description: Patent for a wireless break key that allows a station to just have one aerial line and prevents burn out of the machinery and injury to operators while transmitting messages faster than other wireless devices.
Date: December 31, 1912
Creator: Mobley, Grier P.
Item Type: Refine your search to only Patent
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