Device for the elastic retention in the closing position of the shuttle fastening ring on sewing machines (Machine-translation by Google Translate, not legally binding)

摘要

1 Device for the elastic retention, in closing position, of the hook ring of the shuttle on the sewing machines, characterized in that two elastic arms, anchored in the lower part of the ring and from which they emerge angularly, leaning on the outside on the opposite sides of said ring, adjacent to said lower part, are connected, respectively, with two locking bolts with peripheral throat, fixed to the body of the bed of the shuttle, with such reciprocal arrangement of the arms and bolts that forces each arm to enter the throat of the corresponding bolt, when the ring is brought to the closed position with rotation around its hinge. (Machine-translation by Google Translate, not legally binding)