Abstract: In a method for the production of intarsia knitted pieces on a flat-bed knitting machine, at least some of the yarn guides associated with each one of the intarsia areas and the respective needle bed are moved in a direction relative to each other when one of the needle beds is traversed in both lift directions by a carriage provided with one or a plurality of cams in the border area between two areas of intarsia, and the yarn guides are being coupled with the movement of the carriage in each intarsia area. At the end of a movement segment which extends at most across a number of intarsia areas corresponding to the number of cams, the carriage is reversed in its lift direction and returned, together with the yarn guide last used as well as with the yarn guide to be used for the following intarsia area, to the intarsia area last produced, without making a needle selection.

Abstract: Thread-tensioning and guide device provided for fastening to the needle-bed ends of a flat knitting machine has, on a stationary machine part (20), a pivotably mounted supporting arm (10) for each thread to be fed, the device parts influenced by the thread to be fed being distributed to the supporting arm (10) and to the stationary machine part (20), and, in the operating position of the supporting arm (10), parts of the stationary machine part (20) interacting with elements arranged on the supporting arm or being accessible through the supporting arm for setting purposes. This design of the device allows a favorable combination of a thread-tension brake influenced by a thread-tension regulator with a specially designed pick-up tensioner.

Abstract: In a flat knitting machine, the segments (10.1,11.1), of any desired width, which make up the needle beds (10, 11), are designed to be used with needles of different gauges, i.e. are formed with a different needle separation, so that needles of different gauges are used in adjacent needle bed segments (10.1, 11.1). On a flat knitting machine comprising a carriage (14/15) which can be traversed across the needle beds (10, 11) and has several cam systems (14.1-14.4; 15.1-15.4), the individual cam systems can be allocated to needles of different gauges, while at least one of the several cam systems may differ from the others by a different form of loop-transfer control curve.

Abstract: In the thread-guide arm (11), the thread-guide members (15 to 17) arranged above the thread-guide pulley (12) are formed in a thread-guide star (20) which is arranged immediately in front of a thread-restraining plate (21) and is preferably made in one piece with the latter. The thread-restraining plate (21) has a smooth outer edge having no acute angles, and the exposed edges of the thread-guide star (20) are rounded or bevelled, so that no threads can catch on the thread-guide star and the thread-restraining plate.

Abstract: In the procedure for ensuring a precisely positioned introduction of a substitute yarn in a knitting machine by means of a substitute yarn (15) which is attached by a knotter (13) to a running yarn (12), the machine is halted at the desired position for the change of yarn before or after formation of the connecting knot (16) and afterwards the length of yarn located between the knotter (13) and the yarn working position is drawn out past the connecting knot (16) and taken up to one side and the machine is only started up again when the yarn feeder (11) is feeding the substitute yarn.

Abstract: By the use of special latch needles (21) whose latch (14) can take up two stable positions lying within the limits of its pivotal movement and out of which it can be moved only against the action of a spring, there is ensured, even in fast running flat knitting machines with a transfer mechanism and with stitch presser and/or stitch hold-down elements, and even during the formation of long, loose stitches and loops, reliable trapping of the yarn and manipulation of the stitches and loops by the knitting elements. (FIG.

Abstract: The knitted fabric winding-up device is formed as an auxiliary device which can be located beneath the needle beds (21, 22) on a lower supporting cross member (10), at the front side of a flat knitting machine, from which it is removable, and by means of a winding roller for formation of the fabric package (24) is pivotable from an inner position to an outer position. The winding roller (13) can, even in the outer position, be driven by a motor located in the lower supporting cross member (10) or can be decoupled and turned by hand.

Abstract: A device for the offset control of the needle beds of a flat-bed knitting machine has a servomotor for the adjustment of one of the needle beds in relation to the other and has a position control circuit controlling the servomotor.

Abstract: A front yarn guide element (11) of the yarn stop motion (10) has the shape of a yarn guide eye (12) formed by a wire spiral into which a yarn can be introduced from the side and deflected to all sides without danger of slipping out. The yarn guide eye (12) is provided with a supporting part (17) located so as to be longitudinally movable in the housing (18) of the yarn stop motion (10), so that the spacing of the yarn guide eye (12) from the position (B) at which the yarn stop motion (10) is secured is adjustable.

Abstract: A cam carriage for flat-bed knitting machines has at least one leading and trailing draw-down element, having a drive top plate and a bottom plate with a draw-down track located at opposite sides of a cam plate in which a draw-down element is placed movably between an alignment position and several casting-off positions in a guide slot, and the driven top plate is rigidly connected with a drive element at least in the direction of the draw-down position.

Abstract: Data processing apparatus for a flat knitting machine having several cam systems usable in both travel directions and having needles or needle jacks disengageable from the cam tracks of the cam systems, contains an optimisation circuit (15) with at least one microprocessor, with which circuit is achieved, with the data available from several store areas (16-20), whatever is the optimal limitation of the carriage stroke and at the same time an adjustment and pre-adjustment of the yarn guides (24) corresponding thereto, via thread guide carriers.

Abstract: A device for the control of a flat-bed knitting machine for the positional determination at lift reversal of the carriage assembly driven by a reversible motor has a phase-shifted pulse generator device on the carriage assembly which can be moved back and forth and a stationary pulse generator board device in the area of the needle bed arrangement. With such a device a reproducible lift reversal can be performed in the area of the ends of the needle bed as well as at any desired location along the needle bed arrangement, the pulse generator board device has a pulse generator board extending along a needle bed of the needle bed arrangement.

Abstract: In the dust extraction appliance for flat knitting machines, a vacuum is generated in the suction nozzles (17) by means of at least one suction-flow device (16) which is arranged on the slide of the flat knitting machine and into with a conveyed, via a flexible delivery line (20), compressed air which carries the sucked-up dust further into a dust collecting bag (18) via an exhaust-air duct (22).

Abstract: The dust extraction device located on the cam carriage (13) of the flat knitting machine has separate, independently operable suction fans (27) for the front and rear needle beds (11,12), which, by lowering of the suction nozzles (29,30), the use of smooth-walled suction ducts (31,32) and coupling of the dust containers (37) with the suction ducts and with the suction fans (27) ensures a good cleaning effect with low expenditure of energy and a maintenance free operation.

Abstract: The flat knitting machine (10) has, on the rear side of its machine body (12), bobbin holders for additional bobbins (19), the yarn of which can be processed on the same flat knitting machine or on an adjacent flat knitting machine (10'). The additional bobbin holders can be arranged on individually removable rear-wall panels of the flat knitting machine (10) (FIG. 1).

Abstract: A flat-bed knitting machine is described, the needle bed apparatus of which has a front and back needle bed, each continuous and extending over a substantial portion of the machine length, and the carriage apparatus of which, having a stop-free cam system, is movable back and forth on or above the needle bed apparatus by means of a drive apparatus and is triggered by a program for various knitting patterns. The intent is with this kind of flat-bed knitting machine to enable more-productive knitting of two or more articles on the needle bed apparatus in one operation, by exploiting the needle bed space, and at the same time to use it for knitting only a single article on the needle bed apparatus.

Abstract: A flat-bed knitting machine has been described which is provided with needle sinkers arranged in a knitting cam system of a cam box carriage featuring several cams adjustable by means of stepping motors and having an electronic control unit, which features a storage device for controlling the stepping motors. In order to make the knitting density variable not only in the longitudinal direction, i.e. uniformly as a whole, row by row, but also in the transverse direction across the knitting with knitting machines of this type, the stepping motors are controlled by the storage device, one motor of which, in each case, is associated with a pair of needle sinkers consisting of preceding and trailing needle sinkers during the stroke of the cam box carriage and in synchronism with the individual needles.

Abstract: In the yarn tension regulating device for knitting machines in which the yarn (25) runs through a yarn tension sensor (24) and a yarn brake (20) automatically adjustable in dependence upon the indication of the yarn tension sensor, there is located directly in front of the automatically adjustable yarn brake (20), in the direction of travel of the yarn, a yarn forwarding device, in particular a yarn storage feeder (13), by which the tension imparted to the yarn on its path from the yarn spool to the yarn brake is relieved. Between the yarn brake (20) and the yarn tension sensor (24), which follows it in the direction of movement of the yarn, is located a known yarn take-up (21), whereby the automatically adjustable brake (20) constitutes the yarn brake usually provided for this yarn take-up.

Abstract: A flat-bed knitting machine having a needle bed apparatus and an associated carriage apparatus movable longitudinally thereon and having a data processing unit which controls the cams and/or selector units among others and store pattern information in memory and which has an input keyboard is described. To make the input keyboard accessible to the operator of such a machine during observation of the knitting process, yet not have this keyboard hinder access to the essential parts of the machine, the input keyboard is disposed, from the standpoint of the machine operator, at the level of and in an area in front of the needle bed and carriage apparatus in the longitudinal direction of the machine, in front of a transparent cover, which is also movable in the longitudinal direction of the machine, keyboard being movable parallel to and independently of this cover.

Abstract: A flat-bed knitting machine is described which has a carriage apparatus movable along a needle bed apparatus, a front machine frame on which the needle bed apparatus is held and which includes at least one projecting part, and on each end a plurality of yarn eyes for supplying yarn to the needle bed apparatus. To make it possible to perform servicing and/or repair work on the underside, that is, in the cam area of the carriage apparatus without major effort or long stoppages, a protective cover receiving the plurality of yarn eyes is provided on one end of the needle bed apparatus, and this cover, when the machine is not in operation, is movable, along with the carriage apparatus contacting it on one side, by a predetermined displacement distance into an outer position in which the carriage apparatus is located partly on a projecting part of the front machine frame on the far side of the needle bed apparatus and there is freely accessible from below.