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7059356 |
A shed forming device ( 1 ) for a power loom has a plurality of heddle shafts, to which a drive mechanism with a plurality of servo motor groups ( 13, 14 ) is assigned. The servo motor groups are located below each of the heddle shafts (...
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7032624 |
A novel rod linkage for driving a heddle shaft includes at least one strap ( 16 ), which for damping oscillation has a sandwich structure ( 37 ) oriented in the longitudinal direction (L) of the strap assembly ( 16 ). The sandwich struct...
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6938647 |
The dobby according to the invention comprises, at the level of each of its blades, an oscillating piece associated with an actuation element, at least one mobile coupling member borne by the actuation element and two pivoting levers sub...
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6244961 |
The arrangement contains a carrier (4) which is mounted in a drive shaft (1) which is formed as a hollow shaft with holes (10) which are arranged in a radial plane, two switching tappets (5) which are displaceably arranged in the holes, ...
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6105630 |
An electrical rotating apparatus for controlling a harness cord associated with the shed of a weaving loom which includes an actuator including a rotor and a stator. The rotor is formed of at least two permanent magnets which are mounted...
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6050305 |
A locking mechanism for a rotary electric actuator for the formation of a shed on a loom wherein the actuator includes a driving rotor for rotating a device for winding and unwinding a harness thread and wherein the actuator includes a l...
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5944061 |
A dobby for controlling movements of a heald frame in a weaving machine is provided. A treadle is mounted on a treadle spindle and a link arrangement connects the treadle to the heald frame. Levers are mounted on the treadle and catching...
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5918645 |
A rotary dobby which includes pivoting arms which are moveable with respect to a plate connected to an element for actuating a heddle frame in controlled response to a reading-in device and wherein the pivot arms include catches which ar...
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5908050 |
A rotary dobby which includes pivoting arms which are moveable with respect to a plate connected to an element for actuating a heddle frame in controlled response to a reading-in device and wherein the pivoting arms include catches which...
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5653268 |
A modulator mechanism for a rotary dobby, the input side of the modulator mechanism being connected to a drive which rotates at an essentially constant angular velocity and the output side thereof providing an output which is applied to ...
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5488977 |
An electromagnet-striker bar system for the control device of a rotary dobby includes an amagnetic container having an extremely rigid box structure into which the iron cores of the electromagnets are equidistantly inserted and irreversi...
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5479964 |
A rotary dobby has two mutually opposed ratchet levers pivotably mounted to a cam disk engaging a connecting rod. First ends of the ratchet levers are to interact with two respective mating surfaces defined on the periphery of a drive di...
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5335564 |
A cam for a revolving dobby includes a plate with an upwardly extending protective external edge, the external edge has two peripherally located, mutually opposite notches, key levers are associated with the plate and are protected by th...
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5265650 |
An automatic control system for an electronic rotary dobby, has a pair of permanent magnets mounted on each of the corresponding rocker members. These members are driven by the dobby operating crank arms, such as the ends of the main lev...
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5259419 |
A high-speed rotary dobby key mover mechanism having a main crank arm in which two keying levers that have the same arm ratio are mounted for pivotal movement on a cam in opposing positions. The adjacent ends of the keying levers coopera...
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5209270 |
A control device for rotary dobbies in which a key has a transverse groove of width equal to the thickness of a control ring with which it cooperates plus the length of travel undergone by the key in its insertion into or withdrawal from...
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5174342 |
A device for driving the ring levers that control the keys of a high-speed rotary dobby. In the device, a metal rocker armature is hinged to each lever along the axis of symmetry of the device. The axis passes through the fulcrum about w...
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5131436 |
A dobby for a weaving loom including a series of actuation elements which depend on a weaving program incorporated in a reading device and which are coupled to traction levers connected by a drawing system to the heddle frames, wherein, ...
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5125434 |
An assembly of actuating elements of a rotating dobby for a weaving loom wherein the elements for controlling the movement of each heddle frame include a lever pivotably connected to a connecting rod selectively engageable with an eccent...
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5107901 |
A modulator mechanism for actuating textile dobbies in looms which include a cage driven in rotation by the drive shaft of the loom and which have at least two oscillating supports provided with rollers which roll in contact with a fixed...
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5031668 |
An apparatus for controlling warp threads on weaving machines, particularly suited for control of warp threads on Jacquard type machines, for example selvedge machines. Control members are arranged to control movement of a warp thread an...
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4924915 |
A modulator for controlling high-speed rotary dobbies of the type which control the dobby main shaft's motion by transmitting power from a drive shaft through pivotable rocker supports rotatably driven by the drive shaft and engaging con...
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4905738 |
The control system of a coupling apparatus of a dobby loom includes a hollow drive shaft, at least one eccentric hoop supported thereupon and a connecting rod arranged therearound for a controlled drive of an element. A dog is supported ...
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4858655 |
A rotating dobby for weaving looms wherein the oscillating rods which are connected to the heddles are positively and instantaneously retained in a fixed position upon the disengagement of the coupling hooks by way of which the rods are ...
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4776372 |
A drive connection for reciprocating a connecting rod from an intermittently rotating drive shaft through an eccentric member to manipulate a harness frame of a textile loom from one shedding position to another, includes a drive ring fi...
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4766935 |
A positive dobby in which a pair of cam plates for moving each heald frame positively vertically are provided separately on the first cam shaft and on the second cam shaft parallel to the first cam shaft, whereby the dobby is constituted...
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4763697 |
Mechanism to control the oscillations of connecting rods operating the heald frames in a rotary dobby, of the type wherein, for each frame and connecting rod: the rod is mounted on a drive shaft by way of an eccentric interposed between ...
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4730642 |
A shaft control mechanism for controlling a shaft of a weaving machine according to a pattern includes a connecting rod operatively connected to the shaft, a drive element intermittently rotating and standing still in a dead center posit...
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4730641 |
A driving coupling includes two pawls which are supported pivotally on an eccentric ring and which in a patternlike manner engage a longitudinal groove in the drive shaft. Each of two plates of a toggle-lever joint engages an arm extensi...
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4727910 |
A drive connection for reciprocating a connecting rod from a drive shaft through an eccentric cam to manipulate a harness frame of a textile loom from one shedding position to another. The drive connection includes a pawl mounted on an e...
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4699181 |
A rotary dobby includes a drive shaft assembly, an eccentric mechanism releasably coupled to the drive shaft assembly, the eccentric mechanism including a connecting rod having a coupling joint to be connected to a shaft linkage and the ...
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4646788 |
A rotary dobby for moving a shaft includes a connecting rod connected to the shaft to be moved, the connecting rod having two mutually-opposite wedge detents disposed thereon, an eccentric disk carried on the connecting rod having a wedg...
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4643231 |
A rotary dobby for moving a shaft includes a connecting rod connected to the shaft to be moved, the connecting rod having two mutually-opposite wedge detents disposed thereon along a given wedge-detent diametral line, an eccentric disk c...
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4625767 |
An eccentric ring is rotatably supported between a drive shaft and a connecting rod. Two coupling keys are independently radially movably supported on the eccentric ring. The first key, during a coupling operation, is radially moved by a...
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4614211 |
A rotary switch is provided in a dobby with a rotation drive and has for controlling the coupling part an annular collar. During rotation of the drive shaft, the coupling part is guided actively by the rotary switch, the position of whic...
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4597417 |
A normal position of a shifting wedge of a lifting unit for a rotational dobby is achieved by a movable arrangement of the recess in a locking block which receives the wedge and has rigid side flanks. The entire locking block is, against...
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4552184 |
A dobby includes a needle mechanism having a reading needle, the head of which, during reading of a nonperforated location on a pattern card, engages a pawl and, during reading of a hole in the card, releases the pawl to permit the pawl,...
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4544000 |
For the purpose of producing a synchronized rotating dobby capable of operating equally well in both directions of rotation, a plate fixed to a heddle-frame displacing eccentric is provided with a second notch diametrically opposite the ...
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4542769 |
A locking lever is articulated to a latch. The locking lever is pivoted or swung out against the action of a spring and the pivoting or swinging movement is limited by a stop mounted at an eccentric. The opposite pivoting or swinging mov...
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4518020 |
A drive assembly or gear unit is formed with a drive unit which is rotatably supported on a power output shaft between two bearing positions on the output shaft. The drive unit includes a pair of crankshafts which are offset relative to ...
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4497346 |
The clutch arrangement contains a stroke member which carries two levers and a spring connecting the levers. The stroke member is driven by a drive lever which engages between the two levers. The stroke member drives the bar for the cont...
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4493346 |
In a coupling arrangement for a textile machine, a drive shaft can be intermittently rotated and a connecting member encircles and is connected to the drive shaft by an eccentric hoop located between them. A coupling key is displaceable ...
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4480664 |
There is provided an electromagnetically controllable coupling means between the drive shaft and a cam element of a textile machine. A latch mounted on the cam element and rotatable with it is biasable by a spring to interact with groove...
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4461325 |
The present invention relates to electromagnetic devices for controlling dobbies and other weaving systems, wherein the control unit which contains the electro-magnets is borne by an oscillating frame on which is mounted an equal number ...
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4458727 |
Two rotation heddle frame units pivotally engage the respective ends of a differential lever, which units move the center of the differential lever in a patternlike manner between three different positions. The movement of the center of ...
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4452281 |
In a coupling arrangement for use in a textile machine, a drive shaft can be intermittently rotated and a connecting member encircles and is connected to the drive shaft by an eccentric hoop located between them. A coupling key is displa...
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4444225 |
The present invention relates to improvements in rotating dobbies. The control of the coupling pawl for connection to the driving shaft is effected by one of two right-angled pivoting levers actuated in the same zone by push elements of ...
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4441528 |
The clutch arrangement includes a proximity switch which monitors the coupled or uncoupled position of the pawl with the shaft through a transmission linkage as well as the movement of the heddle. Corresponding control signals are emitte...
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4433704 |
For use on a loom having a pattern selector, a plurality of heddle raising units, each comprising a pulley supported on a shaft and having a funicular cording member wound on the pulley and supporting a heddle, the shaft supporting two a...
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4427035 |
The clutch contains a spring for pulling the arm of the control lever on the stop and an additional auxiliary spring connected with a roller. While the control lever strikes on the stop, the roller moves toward one lever arm so that in a...
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