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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
Partner: UNT Libraries Government Documents Department

Gage or Indicator for Liquid-Tanks.

Description: Patent for a gage or indicator for liquid tanks of inflammable and explosive liquids. Its main purpose is to prevent leakage to minimize danger from fire, including illustrations and instructions.
Date: April 23, 1912
Creator: Surber, Steven P.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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