Since there is no moving package, there can be no normal selvages and it is usual for the projectile always to travel in the same direction when carrying the yarn rather than to reciprocate as in a normal loom.

• 由于纬纱卷装不运动,也就不能形成常规的布边。通常片梭携带纬纱总是沿一个方向飞行,而不是像有梭织机的梭子那样往复运动。