UNT Libraries Government Documents Department - 6 Matching Results

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Composition of Matter for Removing Grease, &c.

Patent for a compound that is meant to remove grease, oil, paint, and similar things from delicate cloth. It is composed of gasoline, chloroform, sulfuric ether, alcohol, spirits of ammonia, powdered borax, powdered carbonate of soda, and saltpeter in lumps.

Date: February 7, 1893

Creator: Ehman, Benedickt

Item Type: Patent

Burglar-Alarm

Patent for "a very simple and economically-constructed alarm mechanically connected with windows and doors of a house or a room and adapted to be sounded by a raising or opening of the same, and at the same time to strike a light or illuminate the surroundings (lines 10-15).

Date: October 7, 1890

Creator: Canterbury, Crawford R.

Item Type: Patent

Wagon Standard.

Patent for a new and improved wagon standard. This design consists in "[t]he combination, with a hollow standard and an extension having vertical movement in said standard, of a gravity-catch adapted to bite against teeth or serrations on said extension in order to maintain the same in an extended position" (lines 60-65).

Date: December 7, 1886

Creator: Welsh, Lee L.

Item Type: Patent