Abstract: A belt drive includes a driven shaft and two belt pulleys supported on the shaft for guiding toothed belts. Each belt has a toothed portion and a smooth untoothed portion. Each pulley is a multi-part element and includes a first portion having a toothed crown engageable with the toothed portion and a second portion having a smooth supporting surface for the non-toothed part of the belt. The first and second portions of the pulley are turnable relative to each other. The first portion of the pulley cooperating with the belt is the form-locking manner is rigidly connected to the shaft whereas the second portion for a friction-type connection with the belt is rotationally supported on the shaft and relative to the first portion.

Abstract: A yarn-selecting device of a knitting frame comprises a mechanism for joig the yarn being knitted to a selected yarn to be knitted, which mechanism comprises a swivelling finger for forming a closed loop of the yarn to be knitted. Two levers form an open loop of the yarn being knitted and insert it through the closed loop of the yarn to be knitted on the finger. A hooking lever is provided for pulling the yarn to be knitted through the open loop of the yarn being knitted, after which the open loop-forming lever is retracted thus removing the closed loop from the finger, and the yarn being knitted is cut by a knife while the end of the yarn to be knitted is released from a gripper.

Abstract: An arrangement for positively supplying elastomer fibers in a textile machine, comprises a device supplying a non-elastic filament fiber, a drive for driving the non-elastic filament fiber supplying device, a yarn spool for an elastomeric filament, a freely rotatable holder for the yarn spool, a drive roller arranged so that the yarn spool abuts against the drive roller over a predetermined abutment length, the drive roller being connected with the drive means and having a length which is greater than the predetermined abutment length, the drive roller having an axis extending in a predetermined plane, and a support which supports the spool holder and is longitudinally displaceable along a line such that the line or its projection extends in the plane of the axis of the drive roller and at an acute angle relative to the axis of the drive roller.

Abstract: A circular knitting machine for producing one-face plush webs of main threads and plush threads has a plurality of needles, a plate ring provided with plate members, and a plurality of cam members for controlling the longitudinal movement of the needles and the transverse movement of the plate members, wherein the needles and the plate members are arranged so that each of the needles cooperates with two parallel and separately controlled plate members movable relative to one another, of which one of the plate members has a slot for receiving a main thread and a stepped back for supporting a plush thread, and the other of the plate members has a thread placing edge limiting the effective length of the slot of the one plate member.

Abstract: Input pulses generated by rotation of a knitting machine are used to produce output pulses that energize needle selection mechanisms therein. A control system operates in such a fashion as to advance the output pulses with respect to the input pulses, while keeping pulse frequency constant. The control system is clocked, and a forward counter is programmed with a number which is dependent upon knitting machine speed, and which number is derived from the number of clock pulses intervening between subsequent input pulses. After the forward counter has been so programmed, it is clocked by the clock until the appropriate number of clock pulses has been counted. At that time, a pulse is generated by reverse counter and a monostable multivibrator, which is used to produce an output pulse according to a program stored in a PROM. Provision is made to bypass the counter when the knitting machine is operated at low speeds.

Abstract: A knitting machine provided with patterning mechanisms responsive to pattern-control signals is caused to produce a non-repeating pattern by generating the pattern-control signals randomly, using a random signal generator not operating in synchronism with machine operation and generating potential pattern-control signals, from which actual pattern-control signals are derived in synchronism with machine operation. Although the pattern-control pulses are randomly generated, the overall character of the pattern produced can be altered by adjustment of the random signal generator to thereby alter the probabilities in the random generation of potential pattern-control signals. Also, pattern restraints are imposed upon the randomly produced pattern-control signals in both the horizontal and vertical directions, involving the number of consecutive stitches of a certain type that are to be permitted to adjoin in one course and in one wale, this being selectable in a manner not detracting from randomness.

Abstract: Apparatus for mechanically crimping and shrinking textile webs mainly comprises an elongated chamber through which the textile web is moved in a predetermined direction, at least two endless crimping grates arranged in said chamber and each including an endless link chain and a plurality of crimping plates projecting equally spaced from each other in a direction transverse to the chain from the latter and in which each endless chain is guided over a pair of guide rolls so that each chain has one run moving in the direction of movement of the web through the chamber and another run moving in the opposite direction. The apparatus includes further heating means having a heated smooth guide surface opposite said one run of each endless chain and said textile web is passed between the respective heated guide surface and the outer ends of the crimping plates on the one run. The chains on successive crimping plates are driven in opposite directions and preferably at speeds which can be steplessly adjusted.