The lengths of the links comply with the conditions: B͞C=2.2A͞B, C͞E=2.6A͞B, B͞E=3.6A͞B, E͞H=2.5A͞B, C͞H=0.8A͞B, D͞C=1.9A͞B, A͞D=2A͞B, M͞F=3.4A͞B, E͞F=3.9A͞B, G͞F=2.3A͞B, H͞K=3.1A͞B and K͞L=M͞N=0.55A͞B. Slider 7 is reciprocated along fixed guides a-a by link 6 which is connected by turning pair E to connecting rod 2. Slider 7 has dwells during the periods of time while point E travels along portions x-x and y-y of its path since these portions approximate circular arcs described from the corresponding positions of point G. Link 8, actuating link 9, periodically grips and releases the stock. The stock is regripped when it is released by link 9 by means of link 5 which is actuated by link 4. Link 4 is connected by turning pair H to connecting rod 2.
$1642$SC,GC$