Linkage system for warp knitting machine

A motion transmitting linkage system including a plurality of linkage means, each having at least a first and a second end, said system comprising:

• a first linkage means for driving said system, said first linkage means being adapted to rotate about the first end thereof;
• a second linkage means having the first end thereof rotatably connected to the second end of said first linkage means;
• a third linkage means having the first end thereof rotatably connected to the second end of said second linkage means and having the second end thereof rotatably attached to a first relatively fixed reference point, said first end of said third linkage means being adapted to describe a first arc about said first relatively fixed reference point;
• a fourth linkage means having a first end thereof rotatably connected to the second end of said second linkage means;
• a fifth linkage means having the first end thereof rotatably attached to the second end of said fourth linkage means and the second end thereof adapted for connection to an output mechanism, said fifth linkage means including a pivot section located intermediate said first and said second ends thereof, said pivot section being adapted for rotatable attachment about a second relatively fixed reference point, said second relatively fixed reference point being located substantially within the ambit of said third linkage means when it describes said first arc, said first end of said fifth linkage means being adapted to describe a second arc about said second fixed reference point;
• and,
• an adjustment means for moving said second relatively fixed reference point in a direction approximately perpendicular to the effective length of the third linkage means when the angle between said fourth and fifth linkage means is approximately 90.degree. with respect to one another at the common point thereof,
• wherein the effective length of the third linkage means measured from its first end to its second end is greater than the distance between said first relatively fixed reference point and said second relatively fixed reference point and further, wherein said effective length of said third linkage means is greater than the distance from the first end of said fifth linkage means to the pivot section of said fifth linkage means so that the radius of curvature of said first arc is greater than the radius of curvature of said second arc.