| 摘要 |
1,262,446. Knitting-machines. NORTH AMERICAN ROCKWELL CORP. 22 July, 1970 [6 Oct., 1969], No. 35542/70. Heading DIC. The pattern drum of a circular machine is indexed by pawls 32, 75 whose strokes are 180‹ out of phase and are effective if required on alternate revolutions of the cylinder. The pawls are attached to pivoted levers 37 rocked via rods 42 by levers 52 following out-of-phase cams 60, 82. Bluffing discs 85 are selectively operated by a pneumatically controlled lever 95 so that either one, or both pawls are operative. |
