Device for supporting elongated light fixtures on drawing boards

A device for supporting an elongated light fixture on an inclining drawing board comprising:

• a. a bracket means adapted to be mounted on the underside of said drawing board,
• a bracket bearing sleeve mounted on said bracket means,
• a closed rectangular frame mounted in said bracket bearing sleeve and pivotal around an axis parallel to and at a distance from the underside of said drawing board, and
• a light fixture bearing sleeve pivotally mounted on said closed rectangular frame for pivotally mounting said elongated light fixture at a distance from and parallel to the working surface of said drawing board;
• said closed rectangular frame comprising:
• a first long side journalled in at least one bracket bearing sleeve mounted on said bracket means on the underside of the drawing board and extending under the working surface of said drawing board,
• a pair of short sides extending around opposite sides of said drawing board, and
• a second long side journalled in at least one light fixture bearing sleeve and extending over and across the working surface of said drawing board;
• b. a balancing means operating on said first long side of said closed rectangular frame for maintaining said closed rectangular frame in a set position relative to the working surface of the drawing board and enabling the elongated light fixture to move across the working surface of said drawing board along an arc of a circle, the center of which is positioned at said distance from the underside of said drawing board;
• whereby the elongated light fixture, by pivoting in only the bracket bearing sleeve and the light fixture bearing sleeve, maintains its desired angular orientation in relation to the working surface of the drawing board while the closed rectangular frame is rotated through approximately 90.degree. thereby illuminating different portions of the total working surface of the drawing board.