Abstract: The invention is concerned with a knitting cambox system for a flat knitting machine with front and rear needle beds arranged gable-fashion and adapted for the production of multicolor knitted fabric a single pass of the machine carriage.An improvement is achieved in this invention by the interassociation of a plurality of independently-operable needle sinkers at the two sides of the knitting cambox so as to provide a timewise-staggered drawing-down of the stitches and increased stitch production.

Abstract: The present invention relates to a flat knitting machine capable of changing the stitch size of an optional wale in every course, and this flat knitting machine comprises a selector actuator for selecting needles to be raised to a knitting or tucking position, select jack pressers for locating at lower butt positions butts of select jacks for operating needles or corresponding jacks raised to a knitting or tucking position, and a pair of upper and lower piled knitting cams, the upper knitting cam being a knitting cam for higher butts, which is brought into butting contact with higher butts, and the lower knitting cam being a knitting cam for lower butts, which is brought into butting contact with lower butts, wherein the stitch size can appropriately be changed by changing the position to which the needles are brought down by said knitting cams.

Abstract: A flat knitting machine includes a device for adjusting the retractor elets for the needles in the cam systems on the carriage of the machine for the setting of the stitch tension. In order to simplify the tension adjusting mechanism and simultaneously to produce a sensitive setting mechanism, there is provided on the carriage a single electrical stepping motor, with position sensor, for counterbalanced adjustment of the leading and of the trailing retractor elements of each cam system.

Abstract: In a flat knitting machine having a needle selector device and selector jacks (50), which can be acted on by press cam parts, and needles (42) with a butt (47) which can be disconnected from the cam parts, there are arranged, in the direction of movement of the machine at each side of each needle selection locality (21) of the needle selector device, a cam part (23, 24). Both cam parts (23, 24) serve to move selected selector jacks (50) longitudinally and to effect a longitudinal movement into different positions (O, I, II) of the selector jacks. Furthermore, each knitting system is provided, for both directions of movement, each with a pair of adjustable draw-off cam parts (15, 17) of different draw-off length, the one of which parts acts on a fixed butt (44) of the needles (42) and the other on the butt (47) which can be disconnected by means of the selector jack (50).

Abstract: A knitting-transfer cam unit for V-bed flat knitting machines wherein needle butts of the needle bodies of slider needles are selectively lowerable in the needle channels of the needle beds by means of a needle selection device, and wherein the slider needles have sliders provided with slider butts and arranged for the transfer of stitches, comprises stationary and movable cam elements for engagement with the needle butts and the slider butts, and also comprises pressure cam elements.

Abstract: In a flat knitting machine wherein needles or jacks connected thereto, each has two butts, front and rear and wherein there is provided a space below a center cam and between a pair of raising cams in a knitting lock, there is disposed in the space a loop-receiving raising cam having a cam face adapted to act on the rear butt to raise the needle to a loop receiving path and also present therein a loop-receiving lowering cam face formed of a bottom portion of the center cam and adapted to lower the needle to the loop receiving path. Preferably, a retractable guide cam is located above the center cam and there is disposed above the guide cam a loop-transfer lowering cam having a cam face adapted to act on the rear butt to lower the needle. Further, above this loop transfer lowering cam is there retractably disposed a loop-transfer raising cam which has a cam face adapted to act on the front butt to raise the needle.

Abstract: Knitting machine with at least one needle bed in which knitting tools exhibiting feet are mounted for camming up and camming down, with at least one cam transportable past the feet and influencing the latter, which exhibits at least one cam-down part mounted movably but lockably and unlockably and adjustable as to its cam-down depth, and with a switching apparatus arranged outside the needle bed which exhibits means for unlocking, means for adjusting and means for locking the cam-down part, while the means for adjusting the cam-down depth exhibit an adjustable guide rail intended to slide the cam-down part and a switching device to adjust the guide rail according to pattern before the cam-down part rides up (FIGS. 1 and 6).

Abstract: A double knitting cam unit for knitting machines, with working jacks arrad in the needle channels of the needle beds behind the knitting needles and Jacquard jacks arranged behind these, includes superposed needle cam units (AD), jack cam units (BD) and Jacquard jack cam units (CD) with fixed and movable cam elements. In order to enable a transfer of stitches independently of the carriage traverse direction and independently of the transfer direction towards the front, towards the rear or in both directions at the same time, the cam units (AD, BD, CD) are made symmetrical to the central line (L) between the two parts of the double knitting cam unit and each needle or jack cam unit (AD, BD) contains movable transfer cam elements (1/1) and each jack or needle cam unit (BD, AD) contains movable acceptor cam elements (9, 8) for stitch transfer.

Abstract: A cam-support carriage for a knitting machine comprises movable cams for controlling knitting needles. The cams are adapted to be put out of operation by an electro-magnetic positioning device. The electro-magnetic device comprises a permanent magnet having a low coercive field associated with a magnetization/demagnetization coil and a moving part of ferromagnetic metal, integral with the cam to be positioned. The coil is connected to an excitation and control circuit ensuring magnetization and demagnetization of the permanent magnet by a current pulse in the coil, in order respectively to attract and release said moving part and its integral cam in order to being the cam out of or into operation.

Abstract: A cam-support for a knitting machine for the entrainment of the push-rods, respectively of the needles, according to the so-called "three-way" technique, having first, second and third lifting cams intended to entrain the abutment surfaces of the push-rods, respectively of the needles, at several different selection points, so that the needles operate either for shaping, or for picking up or so that they do not operate. The first and second lifting cams are located one beside the other and the third lifting cam is located between them but is separated therefrom by a first channel between the first and third cams and by a second channel between the second and third cams. The channels merge in an empty space between all three cams.

Abstract: The present invention relates to a needle selecting method and needle selecting apparatus in a flat knitting machine. For electrically selecting the three needle positions, that is, the knit, tuck and welt positions, by using an electromagnet, needle selecting members are arranged on both the sides of one lock mounted on a carriage. Preliminary selection of needles is carried out by the needle selecting member located on the rear side of the direction of advance of the carriage to divide the needles into two groups, and at the time of reversion of the moving direction of the carriage, needles of one group of said two preliminarily selected groups are selected and divided into another two groups by the needle selecting member, whereby the above-mentioned three positions are selected for the needles.

Abstract: A flat bed knitting machine comprising a flat elongate bed on which is retained a plurality of parallel, latchable, needles equally spaced along the length of the bed and each movable relative to the bed in a direction lengthwise of the needles and transverse of the bed length, a carriage slidably mounted on the bed for movement transversely of the needles, and a needle-engaging cam plate releasably located in a recess in an upper surface of the carriage and retained in the recess, the carriage having a handle gripped by the user of the machine to transverse the carriage back and forth along the length of the bed.

Abstract: A wing cam guide for knitting machine locks and, in particular, those used for knitting machines having arcuate needles, needle beds and needle guides, includes a wing cam mounted on a pivot axis.

Abstract: Knitting machine with a needle bed in which knitting tools having projections are mounted for raising and lowering, with a cam unit which can be transported past the projections and which has at least one lowering cam acting on the projections of the knitting tools which is adjustable with regard to its lowering depth, on which a runner is movably fastened having a plurality of pathways interacting according to pattern with the runner during the carrying of the cam unit past the projections of the knitting tools for the adjustment of the lowering cam to a preselected lowering depth, and with a controller acting before each passage of the cam unit past the feet of the knitting tools for the shifting of the runner to the position required for the interaction with a selected pathway (FIG. 7).

Abstract: A flat bed knitting machine comprising a jack disposed in needle slot for controlling the movement of the needle, and selector jack for actuating the jack. The selector jack is tiltable upon being pushed by a selector controllable electrically in accordance with a pattern for lowering its butt out of the camming action. A group of cams for acting on the jack butts comprises tuck cams for advancing needles to a tucking position, and a unit of movable and fixed cams arranged in an inverted V-shape around the tuck cams for advancing needles to a knitting position. A combination of knitting, tucking and non-knitting in one course can be performed by jacks selectable in a preceding step so as to be shifted to a tuck cam acting position, and movable under the movable cams being retracted in a following step so as to engage the tuck cams, by jacks newly selectable so as to engage the cams which advance needles outside of the tuck cams to the knitting position, and by jacks that can be maintained at rest.

Abstract: A hand-operated knitting machine of the type having a single, flat needle bed includes an improved carriage mounted on the bed for bi-directional movement. The carriage performs the needle selection, loop transfer, and knitting functions through a cam arrangement symmetrically located relative to the transverse center line of the carriage. The cam arrangement includes the plurality of fixed and movable cams that define front and rear loop transfer butt-paths that operatively engage the transferring and the receiving needles of a given set of paired needles to cause them to cooperate with a loop transfer device to effect loop transfer from one to the other of the needles to knit a lace-form fabric.

Abstract: The relative position of one knitting system in a knitting machine is varied with respect to another knitting system to vary the stitch patterns produced by the machine. The knitting machine includes one knitting carriage having two cam holders each provided with two knitting systems. At least one of these knitting systems is associated with moving means adapted to locate the system in at least two different working positions with respect to the other knitting system.

Abstract: A rocker arm 5 is pivotably mounted in a needle shank 15 and biased towards n open position of the needle hook 6 by a spring 17. Upstanding feet 10, 12 on respective lever arms 13, 14 of the rocker arm implement the positive and accurately controlled opening and closing of the needle hook by lock elements 9, 11 slidable along the needle bed.

Abstract: A knitting machine is comprised of a first pair of cooperating flat needle beds and a second pair of cooperating flat needle beds positioned behind the first. Cam slides are provided with cams for controlling the motions of the needles in the needle beds. The cam slides are mounted for travel in a single direction along a closed path extending around the two pairs of needle beds. At least one, but preferably all, of the cam slides is provided with cam arrangements capable of causing needles to perform normal-knitting motion, loop-delivery motion for loop transfer and also loop-acceptance motion for loop transfer. As the cam slide makes one trip in one direction along one pair of needle beds, it can cause loops to be transferred in both directions during the single trip. When a switchover to normal knitting is to be made, the cam slide need not be replaced but is merely reset for normal knitting.

Abstract: A knitting machine having reciprocable knitting tools and a cam operated means for reciprocating said knitting tools in which said cam operated means provides an amount of play in the movement of the knitting tools and means for moving said knitting tools an additional distance within the play permitted by said cam operated means.

Abstract: A flat knitting machine has two opposed needle beds and rigid loop expanders are provided on the needles. Loop transferring cam sets mounted on the traversing machine carriage include a transfer cam having at least three noses of which at least one is higher than the others. The higher nose lifts the needles sufficiently for the knitted loops held on the needles of one bed to be expanded on the loop expanders and the other noses complete transfer of the loops to the needles in the other bed. The loops open the latches of the receiving needles as they are transferred.

Abstract: A flat knitting machine comprises a needle bed and a carriage traversible along the needle bed. Stitch cams presettable in a plurality of different positions according to a desired knitting pattern are provided, and an adjustably positioned ramp in the needle bed fixed to a slide is adapted to displace a cooperating stitch cam into a selected position. Means are provided on the carriage for clamping the stitch cam in the position to which it has been displaced by the ramp and a slide to which the ramp is attached is raisable by control cam means preceding knitting cams in the carriage.

Abstract: A carriage for a hand knitting machine in which a plurality of cams, including upper and lower Jacquard cams, are sequentially arranged and are adjustable between inoperative and operative positions so as to define at least one raceway for the butts of needles reciprocable in the needle bed of the machine. At least the upper and lower Jacquard cams are actuable by individually operable lever means between said inoperative and operative positions. At least one of the lever means is interconnected with at least one of the other lever means such that actuation of one of the said lever means simultaneously actuates at least one of the other lever means to thereby actuate a predetermined combination of said cams.