Automatic sewing machine

An automatic sewing machine for moving a movable element and work piece relative to a needle, comprising:

• a pivoting means for pivoting the movable element and work piece around a pivot point,
• an extendable arm carried by the pivoting means for translating the movable element and work piece radially with respect to said pivot point,
• first mechanical drive means for driving said pivoting means,
• second mechanical drive means for driving said extendable arm, with said first and second drive means having a fixed position relative the needle and being spaced from both said pivoting means and extendable arms,
• first linkage means connecting the first drive means to the pivoting means, and
• second linkage means connecting said second drive means to said extendable arm for moving the movable element and work piece relative to the needle so that approximately a straight line is traced on the work piece whenever the movable element is pivoted about said pivot point.

An automatic sewing machine, comprising:

• a sewing needle;
• pivotal and extendable arm means having a work holder adjacent one end of the arm means for holding a work piece during sewing, said arm means and work holder being movable relative to said needle;
• and
• means for moving the arm means comprising, mechanical driving means being spaced from the arm means and having a fixed position relative the needle and means for connecting the driving means to the arm means.

An automatic sewing machine, comprising:

• a sewing needle;
• an elongated overhanging arm for transmitting power to said needle;
• elongated extendable arm means having a work holder adjacent one end of the arm means for holding a work piece during sewing, said arm means being movably mounted beneath the overhanging arm for pivotal and longitudinal movement of the work holder relative the needle, with said arm means being generally aligned with said overhanging arm directly beneath the arm in at least one pivotal position of the arm means;
• and
• first and second mechanical drive means spaced from the arm means for moving the arm means and work holder relative said needle.

An automatic sewing machine, comprising:

• a sewing needle;
• elongated arm means having a work holder adjacent one end of the arm means for holding a workpiece during sewing, said arm means being pivotally mounted about a pivot point remote the work holder;
• and
• means for moving said arm means about the pivot point comprising,
• mechanical driving means having a fixed position relative the needle, and
• means for separately connecting said driving means to said arm means from opposed lateral sides of the arm means and longitudinally spaced from said pivot point.

An automatic sewing machine, comprising:

• a sewing needle;
• elongated arm means having a work holder adjacent one end of the arm means for holding a workpiece during sewing, said arm means having a pivotally mounted first portion and a second portion affixed to the work holder and being slidably mounted for longitudinal movement relative said first portion and needle;
• and
• means for longitudinally moving the second portion relative the first portion comprising,
• mechanical driving means having a fixed position relative the needle, and
• means for separately connecting said driving means to said arm means from opposed longitudinal directions.

An automatic sewing machine comprising:

• a sewing needle;
• pivotal and extendable arm means having a work holder for holding a work piece during sewing, said arm means and work holder being movable relative said needle;
• mechanical drive means;
• an elongated flexible element connecting the drive means to the arm means for moving the arm means and work holder;
• and
• separate mechanical biasing means for tightening said element and maintaining the element taut.