Programming apparatus of automatic sewing machines

In a programming apparatus for an automatic sewing machine comprising:

• a programmer table for mounting a sheet member provided with marks and positions corresponding to stitch positions along a sewing pattern curve,
• a moveable member having a connecting member for removably mounting a stylus which is to be positioned at said marks of said sheet member onto the table,
• a drive means including pulse motors for moving for said movable member on said table in the X and Y directions of rectangular coordinates,
• first control means including:
• pulse generating means for generating pulses supplied to said pulse motors,
• memory medium including a memory area for storing a number of pulses which are applied to said pulse motors for moving said stylus between adjacent ones of said mark along said sewings pattern curve corresponding to at least one address, and
• a ROM writer for transferring the contents of said memory medium to a nonvolatile memory means,
• the improvement which comprises,
• second control means including:
• means for reading out the content for said memory medium or said nonvolatile memory means for producing an instruction pulse train to relatively move said movable member, and
• circuit means for supplying said instruction pulse train to said pulse motors, thus moving said movable member in accordance with the content stored in said memory means or in said nonvolatile memory means, and
• means for forming a pattern contour corresponding to the content of said memory medium or nonvolatile memory means on a not yet worked cloth clamping plate mounted on said movable member by said connecting member during the operation of said second control means.