Abstract: An apparatus according to the invention for producing a knitted fabric with interspacing is embodied in the form of a circular knitting machine with knitting cylinders or with a knitting cylinder and a dial. Between the two needle beds for the needle assemblies defined in this way, a pile thread transfer device 4 is arranged, which is preferably provided with two groups 5, 6 of feed elements that can respectively be moved from an idle position to a thread tucking position. In the process, the feed elements of the one group move toward the needle hooks of the first needle bed and the feed elements of the other group move toward the needle hooks of the other needle bed. In this way, a spaced apart knitted fabric can be produced on circular knitting machines, wherein latch needles can be used and the needle stroke is limited to the standard measure of less than 14 mm. The knitted fabric with interspacing can have a thickness of clearly more than 14 mm, meaning a thickness than far exceeds the needle stroke.

Abstract: A knitting tool which is suitable for embodying both large and small loops has two needles (6, 7), disposed coaxially to one another, whose hooks are oriented identically. The hook of the larger needle (6) is split in two in the middle and comprises hook halves. The finer needle (7) can be driven between the two hook halves upon spreading of the two hook halves apart from one another. For selectively closing the hooks, a slide is provided, which can be brought into engagement both with the tip of the fine needle and with the tip of the coarser needle. To raise and lower the slide to the various positions of the hook tips relative to the needle back, a sliding control block may be provided. The sliding control block may be embodied on the coarse needle and the fine needle (7).

Abstract: The starting point of a new concept in a latch needle (1) is an attachment of the latch spring (22) in the sawslot (9) of the latch needle from the side of the needle back (7). For this purpose the latch needle (1) has spring-supporting pockets (19, 21) accessible from the needle back (7) or other structures adapted to receive the ends (25, 26) of the latch spring (22). The spring-supporting pockets (19, 21) are closed toward the needle back (7) at least to such an extent that the ends (25, 26) of the latch spring (22) are held in a form-locking, or at least in a captive manner in the spring-supporting pockets (19, 21). Such a latch needle has a reduced tolerance sensitivity during manufacture. The described needle concept makes possible further improvements which contribute to the operational safety and service life of the latch needle.

Abstract: The starting point of a new concept in a latch needle (1) is an attachment of the latch spring (22) in the sawslot (9) of the latch needle from the side of the needle back (7). For this purpose the latch needle (1) has spring-supporting pockets (19, 21) accessible from the needle back (7) or other structures adapted to receive the ends (25, 26) of the latch spring (22). The spring-supporting pockets (19, 21) are closed toward the needle back (7) at least to such an extent that the ends (25, 26) of the latch spring (22) are held in a form-locking, or at least in a captive manner in the spring-supporting pockets (19, 21). Such a latch needle has a reduced tolerance sensitivity during manufacture. The described needle concept makes possible further improvements which contribute to the operational safety and service life of the latch needle.

Abstract: A knitting tool (1), particular for high-speed knitting machines, has a shank (2) that is provided with indentations (33, 34). For embodying these indentations, the shank (2) is provided with a slit (25), which creates two legs (29, 31) spaced apart from one another. These legs are bent toward one another so that the desired indentations are created at the flanks (27, 28). The indentations serve to reduce friction and to hold oil.

Abstract: A knitting tool (1), particular for high-speed knitting machines, has a shank (2) that is provided with indentations (33, 34). For embodying these indentations, the shank (2) is provided with a slit (25), which creates two legs (29, 31) spaced apart from one another. These legs are bent toward one another so that the desired indentations are created at the flanks (27, 28). The indentations serve to reduce friction and to hold oil.

Abstract: A closing device (4) is provided for closing a tube-shaped knit fabric on one end, for example for producing stockings or socks, which has plates (9) and counter-plates (13). The latter each have loop-carrying sections (18, 41), whose ends are designed to be complementary to each other and can engage each other in an interlocked manner. Here, the plates (9) have a receiving end, and the counter-plates (13) a penetrating end. The receiving end is constituted by a receiving funnel (28), formed by the ends of two legs (22, 23). These can be resiliently bent away from each other. This has the advantage that the penetrating counter-plate (13) cannot cause any damage to the plate (9) if it is moved too far in the direction toward the plate (9). There is the further advantage that in the course of the dipping movement of the needle into the free space of the plate, as well as during the relative movements between the needle and the plate, damages are almost impossible.

Abstract: A closing device (4) is provided for closing a tube-shaped knit fabric on one end, for example for producing stockings or socks, which has plates (9) and counter-plates (13). The latter each have loop-carrying sections (18, 41), whose ends are designed to be complementary to each other and can engage each other in an interlocked manner. Here, the plates (9) have a receiving end, and the counter-plates (13) a penetrating end. The receiving end is constituted by a receiving funnel (28), formed by the ends of two legs (22, 23). These can be resiliently bent away from each other. This has the advantage that the penetrating counter-plate (13) cannot cause any damage to the plate (9) if it is moved too far in the direction toward the plate (9). There is the further advantage that in the course of the dipping movement of the needle into the free space of the plate, as well as during the relative movements between the needle and the plate, damages are almost impossible.

Abstract: A combination of an electret microphone (1) and a sigma-delta A/D converter (9, 5, 7, 8). The sigma-delta A/D converter has a DC feedback loop (8) which provides the bias current (IDC) for the junction FET (2) of the electret microphone. In this way the signal current from the FET (2) can be injected directly into the input integrator (9) of the sigma-delta A/D converter without the need of signal resistors in series with the FET (2).

Abstract: A quadrature device 1 for a communication device, receiver, transmitter, transceiver, telephone, mixer, modulator or demodulator comprises I and Q signal paths and corresponding signal paths components 2I, 2Q; 4I, 4Q; 9I, 9Q showing a mismatch. The device 1 comprises switching means 3, 3′, 6, 3″, 3′″ for in particular data dependently exchanging the I and Q signals in said I and Q paths in order to improve adverse effects, such as reduction of leakage of quantisation noise from the image band to the signal band in a quadrature modulator. Even mismatch effects between digital to analog converters (DAC's) in a feedback path of a sigma delta (&Sgr;&Dgr;) modulator are compensated.

Abstract: Apparatus for delivering successive lowermost strip- or sheet-shaped commodities, such as labels, from a stack of commodities to a conveyor employs a rotary and reciprocable transfer member which pneumatically removes successive lowermost commodities from the stack, pneumatically attracts the commodities during transfer from the stack, and ceases to attract the commodities upon arrival at a station where the commodities are taken over by the pneumatically operated conveyor, such as an indexible or continuously driven rotary drum-shaped conveyor. The transfer member is reciprocated between the magazine and the conveyor by a reciprocable carriage which further serves to reciprocate a fluid flow regulating member acting as a valve to establish and interrupt the flow of air from one or more inlets of the transfer member to a suction generating device. The movements of various mobile constituents of the apparatus are synchronized, and such constituents can receive motion from a common prime mover.

Abstract: A web of wrapping material for use in a cigarette packing machine is drawn off a roll and is advanced lengthwise, first by a single pneumatic belt conveyor which attracts an intermediate portion of the web, and thereupon by two additional pneumatic conveyors each of which attracts one of the two marginal portions of the web. The web is severed by a cross cutter between the first conveyor and the additional conveyors to yield a series of successive blanks, and such blanks are draped around successive arrays of unwrapped cigarettes or around successive cigarette packets which are advanced across the path for successive wrappers between the two additional conveyors.