GB933593A - Improvements in or relating to straight bar knitting machines - Google Patents

Abstract

933,593. Knitting-machines. WILLIAM COTTON Ltd. Oct. 23, 1961 [Oct. 28, 1960], No. 37045/60. Class 74 (2). In a straight bar rib knitting machine having two sets of bearded needles mounted upon bars operated by cams and having fashioning mechanism in which loop transfer points are carried by a narrowing head for dipping and sideways motions in a known manner, finger boxes for the left-hand and right-hand selvages are connected to the narrowing machine rods 5 and 6 and have identical movements. The box 7 has points 7b and 7c for the frame needles 1 and machine needles 2 respectively depending from a mounting block 7cb associated with rod 5 and depending from a pivoted block 7d. Block 7d is connected by a rod 9 to an arm 10 pivoted at 11 and connected by an arm 12 to an operating rod 13 connected to a bell-crank lever 15 by a pin 14. Lever 15 is connected by a link 16 to a rod 17 operated through a truck lever by a cam on the main shaft and having a pin 17a which slides in a slot 18 of a fixed bracket 19. This mechanism operates continuously and is made effective, when required, through a control disc on a shaft 4 having bits 22 engageable with a lever 23. Lever 23 is connected by an adjustable link 24 to an arm 25 pivoted to rod 13 and having a shoulder end 27 movable by link 24 and arm 25 into and out of engagement with the head 14a of pin 14. Pin 14 slides in a slot 13a in rod 13 such that when arm 25 is held by spring 28 with shoulder 27 engaging head 14a, arm 13 is moved by bellcrank lever 15 but, when a bit 22 operates lever 23 to lift shoulder 27 from head 14a, pin 14 rides in slot 13a without moving rod 13.