Description

Image of an exhibit of Vannavar Bush's profile tracer. Below is the profile tracer mechanism, and above are a diagram with Bush's patent information, and a caption to the left. Original caption: "In 1912 Vannevar Bush was awarded a patent for his profile tracer. The machine's movement was transmitted by gears to a disk that in turn controlled the marker and record sheet. The marker drew a verticle profile showing the elevations of all points along the line traveled. Lent by Vannevar Bush". Original caption: "from IBM exhibit 'A Computer Perspective'". Original credit line: Charles Eames 901 Washington Boulevard Venice California, COX 1702 F.