Apparatus for an automatic marking of drawings

摘要

The apparatus is used for the automatic marking of drawings with alphanumeric and other drawing symbols. A carriage is designed to travel over the drawing without damaging the drawings. Means are provided to rigidly hold the carriage in place over the point on the drawing to be marked. Stylusses of varying sizes are interchangeably fitted on the carriage. Flexible cables connect the carriage to a control unit. Stored programs of the control unit are used to direct the marking operation. The unused stylusses are stored in appropriate receptacles in the control unit. A keyboard can be used to select the desired marking program.