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Document Title |
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7140399 |
A novel shaft gear for harmonious engagement and disengagement of individual heddle shafts and for deriving their motion from the rotary motion of a single input shaft has a coupling system with two input elements. While one of the input...
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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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6478055 |
A pulley-less shed-forming device for a weaving machine, such as a jacquard machine, has a number of shed-forming elements ( 1 ), such as hooks, to determine the positions of one or more warp yarns on a weaving machine. A lifting device ...
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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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6073662 |
A hook selection device for a weaving loom dobby head where the dobby includes a bottom board carrying hooks and an upper part for supporting the selection device. The upper part moves relative to the bottom board and includes rigid heal...
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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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5908051 |
An actuating selection device for a dobby mechanism for controlling movement of components used to affect movement of a heddle frame and a weaving loom wherein the selection device includes selector members which are pivotally mounted ad...
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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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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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5365979 |
A dobby comprises first and second hooks relatively moved in the direction of approaching and leaving each other, a lever for selectively forcing the second hook to be engaged with the first hook, and a pusher for selectively providing t...
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5345973 |
An adjustable connection link is provided between the dobby and the first crank lever of the control rods of each loom heddle frame. The connection link consists of two tubular bars of hollow aluminum alloy section pieces, preferably of ...
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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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5316049 |
In a heavy closed-shed dobby of a weaving machine having oscillating levers which are selectively connected to one of two oppositely movable actuation knives by rocking double hooks mounted thereto so as to control the movement of heddle...
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5309949 |
A mechanism for controlling the reciprocating movement of knives associated with rocking hooks connected to the heddle frames of a weaving machine which mechanism includes a pair of rotatable drums oriented parallel to the path of moveme...
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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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5214834 |
A process for assembling the actuation elements of a rotating dobby, in which the connection between the driver plates of the different actuation elements and the driven shaft thereof is effected by axial tightening of the driver plates ...
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5209269 |
A positive eccentric dobby having a rigidly mounted roller lever shaft with minimal clearance, on which pivoted roller levers are disposed, which transmit the movement to the heald frames via coupled connecting rods, reversing levers and...
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5165454 |
A warp insertion monitoring method and apparatus for positively protecting woven cloth from defects due to warp insertion error or failure. A warp detector is disposed on a loom so as to have a warp presence/absence detection region loca...
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5125435 |
An electro-magnetic unit for controlling the needles associated with the dobbies and other weaving mechanisms of a loom which includes a series of cassettes each containing electro-magnets for attracting blades associated with springs an...
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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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5069256 |
A loom harness having nested pairs of cylinders. The pairs of cylinders are arranged in parallel fashion and offset in relation to one another on a rigid, stationary frame. Pillow blocks spaced along the frame support the cylinders. Flex...
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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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4986315 |
A weaving installation includes a weaving machine and a dobby which can be driven by the weaving machine. In order for the weaving machine to drive the dobby, the weaving machine may be provided with a pulse generator for the transmissio...
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4984607 |
A device for driving harnesses of weaving machines includes at least two driven cam shafts and at least one pair of conjugated cams connected to each other for each shaft. Swivel mounted levers which swivel about a common shaft are mount...
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4949760 |
A dobby apparatus is provided for use with hand looms for automatically controlling the lifting sequence of a plurality of shaft assemblies in accordance with a predetermined weaving program. The dobby apparatus has a dobby operating dri...
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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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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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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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4534385 |
The invention relates to a levelling device for weaving mechanisms incorporating cams of the negative type. With each oscillating lever there is associated a tipping pawl adapted, under the effect of a control member common to all the pa...
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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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4478254 |
The invention relates to the textile industry and more particularly to looms. The device comprises a motor-reducing gear unit which can drive the dobby mechanism selectively, through a clutch, this mechanism being normally driven, from t...
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4476899 |
A weaving machine is operationally connected to a shed-forming machine which includes a drive shaft and a braking mechanism. The latter includes a braking disk which is axially slidably supported on the drive shaft of the shed-forming ma...
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4474220 |
The invention relates to improvements in mechanisms for driving regulators of weaving looms. Between the shaft of the dobby and the chain pinion which drives the regulator of the loom there is interposed a differential reverser whose sat...
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4474219 |
The present invention relates to improvements in shed locating devices associated with dobbies and other weaving systems. A device is provided to enable the dobby shaft to remain coupled to the loom shaft whilst being connected to an aux...
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4465107 |
An improved dobby uses linkages for controlling the oscillations of the fixed and mobile knives about their axes which comprise first levers fixed to the knives, second levers fixed to control shafts, and connecting rods which link said ...
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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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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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4422480 |
An apparatus for operating a loom heddle comprises a drive shaft centered on, rotatable about, and defining an axis, and an eccentric carried on the drive shaft, rotatable relative thereto about the axis, and formed with an axially exten...
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4412563 |
To move pile heddle frames between three or rather four shed positions, a four-position rocking lever is arranged between two adjacent heddle frame lifting units and the rocking lever controlling the heddle frame. The free end of the fir...
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