Improvements in Apparatus for Producing Drawings in Perspective from Geometrical Sketches and the like

22,891. Buchberger, G. Dec. 14. Camera lucides.-Relates to a method of producing, by means of a camera lucida, perspective drawings by the combination of geometrical plane views. The views are secured in front of the camera on a vertical board which can be turned about a vertical axis to vary the distances of the various parts of the figure from the camera. In this way, say, the front face b, d of a box is drawn from a rectangle. By a further adjustment of the board carrying the views the back face e, f, g, h can be similarly drawn. The corners are then joined up and the perspective drawing completed.