Patent GB-1185649-A (GB)
Title: Improvements in or relating to Straight Bar Knitting Machines
Inventor: WOODCOCK HERBERT EDWARD
IPC: D04B11/22
Filed: 1966-11-05
Abstract: 1,185,649. Knitting-machines. BENTLEY MACHINE DEVELOPMENT CO. Ltd. 27 Oct., 1967 [5 Nov., 1966], No. 49686/66. Heading D1C. Lace patterning in addition to fashioning is achieved on a straight-bar machine by the provision of transfer points 17 mounted in two separate beds 16, 116 corresponding to each half of the machine which are capable of movement lengthwise of the row of needles to achieve the loop transfer. Associated with the points in each bed are point deflector members 22 corresponding in number with those of the points and adapted to slide vertically in guide bars 20, 21 in which they are frictionally retained by cover plates 123, 123a. The beds 16, 116 and guide bars 20, 21 are mounted on the narrowing head of the machine to which the usual dipping motion is imparted to achieve loop transfer. The top end of the deflector members project above the guide bar 20 and on initially raising the narrowing head are brought into engagement with those selector members 26 which have pivoted into an operative position according to the dictates of a positionally stationary pattern drum 28. Consequently projections 26d on the selector members 26 which are in the path of the deflector. members cause the deflector members to project downwardly such that their lower ends engage the bent ends of the transfer points and deflect them inwardly into an operative position and hold them there by a notch 22c in the member 22 engaging over the band 17c of the point. When the narrowing head is lowered the operative points box with the corresponding needles to take the loops. Lateral transfer is achieved by shogging the beds 16, 116 sideways prior to the second dipping motion of the loop transfer and is effected by a wedge actuated by a cam on the cam shaft and further controlled by a solenoid effecting a single or two needle transfer motion causing shafts 10, 12 carrying the beds to move in one or other direction. In addition lead screw mechanism effects further movement of the beds. The selector members 26 are also adapted to be actuated by short cam drums 33, 133 engaging projections 26l on the selector members to render projections 26c effective on the outer selvedge points when it is desired to fashion. Similarly inner selvedge points can be selected by cam drums 37, 137 which engage projections 26j on the selector members 26 to deflect the members into an operative position whereby their projections 26c engage the deflector members 22 when V-neck shaping is desired. The cam drums 33, 133 and 37, 137 are operated by mechanism controlled by solenoids and rack and pinion arrangements controlled from the main cam shaft. Also a re-set bar 23 controlled by the cam shaft of the machine returns the members 22 to an inoperative position on completition of a loop transfer motion. A re-set bar 31 also returns the selector members to an inoperative position after a selection has been made and prior to the pattern drum 28 being racked round for the next selection. The latter movement is also achieved by pawl and ratchet mechanism controlled from the main cam shaft.