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7926688 |
Tension-controlled web processing machine and method
A web processing assembly including first, second and third fixed spaced apart pairs of nip rollers moving the web respectively at a first, second and third speeds, the first and third speeds being...
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7798382 |
Regulating the web tension of a continuous material
A method for regulating a web tension of a continuous materials which is moving using a transport device with a web-tension controller, includes determining controller characteristic parameters,...
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7398903 |
Wire-feeding device for a wire-processing machine
A wire feeding device for very fine wire includes a straightening unit, a transporting unit, a wire buffer, and a wire guide arranged on a table on which a swivel unit with a wire drive is also...
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7243872 |
Device for detecting and/or adjusting a tensile force in a yarn
Apparatus monitoring and/or adjusting tensile force in a yarn (10) including at least three consecutive yarn deflecting elements (11, 12, 13) of which the central deflecting element (12) is...
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6824032 |
Controller of running tension of paper web for rotary press
A controller for controlling the running tension of paper web for rotary press includes a paper feed unit (1) and a printing unit (2) provided with a printing cylinder (21) rotating according to an...
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6810812 |
Method for regulating the tension of a web
The tension of a web in a rotary printing press is regulated during passage of the web between at least first and second cylinders of at least one printing group. The two cylinders are driven using...
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6799507 |
Web printers
A web printer has a buffer for adjusting the traveling position of the web under its slack status, a tension assigning unit for assigning fixed tension to the web delivered from the buffer, a...
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6536700 |
Variable tension fiber winding
The invention relates to a method of winding optical fiber onto a spool. The method includes varying a target, tension applied to a fiber as the fiber accumulates onto the spool such that the...
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6499639 |
Method and apparatus for dynamically controlling a web printing press
A method for dynamically controlling a driver of a nip roller in a web printing press includes controlling the speed of the driver in a tension-control mode during a phase of printing press...
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6486904 |
Thermal transfer printer that is capable of maintaining intermediate transfer sheet tension constant
The thermal transfer line printer is provided with tension roller position detection means having tension rollers, rotatable tension roller support frames that support the tension rollers rotatably...
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6471152 |
Dancer roll mechanism and web feeding apparatus incorporating such dancer roll mechanism
A dancer roll device has a support assembly that supports a roll. A ball screw is rotatably mounted on the support assembly. A weight member is mounted on the ball screw by a nut member that is...
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6450212 |
Solid state web take-up control
An off-loom take-up for winding a cloth roll from woven cloth coming from a loom which includes a frame and a pair of spaced take-up rollers carried by the frame, at least one of the take-up...
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6433499 |
Device and method for automatic tension transducer calibration
An apparatus for calibrating a tension transducer for a web includes a pair of nip rollers and a motor for driving at least one of the pair of nip rollers, the motor having at least one roller...
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6314333 |
Method and apparatus for controlling web tension by actively controlling velocity and acceleration of a dancer roll
This invention pertains to processing continuous webs such as paper, film, composites, and the like, in dynamic continuous processing operations. More particularly, it relates to controlling...
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6276587 |
Arrangement for delivering a web of material from a storage reel to a process line, and a unit included in the arrangement
An arrangement for delivering a web of material from a storage reel to a process line for manufacturing absorbent disposable articles. The arrangement includes a web tension control unit for...
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6273313 |
Process and apparatus for controlling the registration of converting operations with prints on a web
A process and apparatus for maintaining the registration of folds with successive indicia on an advancing paper web is provided. The apparatus includes a control system for detecting the location...
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6216747 |
Beam let-off apparatus and a method for letting off filaments
A beam let-off apparatus capable of adjusting the tension of a plurality of filaments as they are removed from a beam through the controlled movement of a pivoting arm directed by the tension of...
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6155963 |
Cushioning conversion machine with power infeed
A cushioning conversion machine and method for converting sheet stock material into a relatively low density cushioning dunnage product. The machine has at least one conversion assembly for forming...
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6024319 |
Tension control apparatus
A tension control apparatus includes at least two guide rollers and at least one dancer roller disposed so as to be movable relative to said guide rollers, and applies a predetermined amount of...
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6010052 |
Yarn supply apparatus with electronic control
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5996492 |
Method and apparatus for regulating web tension in a web-fed rotary offset printing press
A method for regulating web tension in a web-fed rotary offset printing press includes increasing web tension over a predetermined speed range, substantially linearly with web speed, as the...
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5988553 |
Entangling protection arrangement for a thread feeding buffer
A thread feeding buffer for feeding a fibre thread from a magazine roll to a feed apparatus at a robot arm which is freely movable in the room. The thread feeding buffer including a thread brake...
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5964390 |
Arrangement and web tension control unit for web delivery
An arrangement for delivering a web of material from a storage reel to a process line for manufacturing absorbent disposable articles. The arrangement includes a web tension control unit for...
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5878933 |
Strip guiding apparatus and associated method for maintaining lateral position
Strip guiding apparatus includes a roll rotatable about its longitudinal axis over which strip will travel while under tension. Sensing apparatus determines the lateral position of the strip with...
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5826774 |
Wire tensioner for dynamo-electric machine coil winder
A tensioner for an armature winder which significantly reduces instantaneous increases in wire tension during winding or lead connection. System controls control the drag of a hysteresis brake,...
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5813586 |
Apparatus and method for controlling web speed
There is provided an apparatus for controlling the infeed speed of a bag making machine. In one embodiment, the nip roll speed is changed from a variable speed to a fixed speed after a cycle...
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5810236 |
Web accumulator
A web accumulator having an even number of dancer rollers, arranged on either side of a single vertical guide rod for guiding the dancer roller for upward and downward movement. A support structure...
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5806744 |
Apparatus for feeding and tensioning threads in a textile machine
Apparatus for feeding and tensioning threads in a textile machine including corresponding weaving members supplied with the threads. For each thread, a calander is provided with first and second...
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5791542 |
Yarn test system which moves yarn at high speed under constant, adjustable tension
A system for moving yarn under substantially constant tension, including a translationally-fixed pivoting device, having a neutral position, for applying tension to the yarn, and a variable-speed...
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5791541 |
Tension controller for controlling tension of running paper web
A tension controller for controlling the tension of running paper web. When a rotary press starts to operate and performs a minimum speed operation, the controller balances the tension of the paper...
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5765481 |
Apparatus and method for working on a length of web material
A length of web material is worked by a number of individual work units each of which performs a work function on the material to progressively achieve an end result, the work units being arranged...
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5704304 |
Level lining apparatus and method
An apparatus and method are provided for simultaneously feeding two or more rolls of material into a sewing and cutting system. Specifically, the apparatus includes a roll let-off for supporting...
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5647276 |
Web tension regulator for printing machine
An apparatus for use with a printing press including a tension regulator for maintaining a substantially constant tension level on a web of printing medium passing through the printing press. The...
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5648834 |
Film tension sensing device
A tension sensing device for motion picture projection equipment is intended for use in a platter feed system. The device is mounted upon a column of a platter system, having a pivoting arm and a...
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5617985 |
Apparatus and method for supporting and guiding strip material that is to be processed in the loop region
Apparatus for supporting strip material includes a discontinuous conveyor for discontinuously conveying a strip material and a continuous conveyor for continuously conveying the strip material. The...
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5582339 |
Apparatus for storing a continuous web of material made from packaging material
An apparatus including a material accumulator (10) which is used, in conjunction with a packaging machine, for temporarily storing a continuous web (11) of material. Accurate operation of the...
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5546993 |
Web tension apparatus with sensor switch arrangement for oscilliating dancer roll and method
A web tension control apparatus and method utilizes a control for a drive motor (A) including an oscillating roll (B) for moving a cam (C) in relation to a proximity sensor (E) for controlling the...
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5542592 |
Cable and wire pre-feed apparatus
A wire feeding system, for use with apparatus that processes the wire in conjunction with intermittent advancement of the wire, the feeding system operating to de-reel the wire from a reel and...
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5485386 |
Method and device for the control and regulation of the stretch of a running web
A method and an apparatus provided to calculate and control the elongation in a running web (16), e.g. in connection with a preparation of a web in a printing machine. In connection with at least...
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5480085 |
Method and apparatus for controlling tension between variable speed driver rollers
A continuous web of sheet material is fed through the nip of a first pair of driven pull rolls around a series of idler rollers and through the nip of a second pair of driven pull rolls. The pairs...
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5472127 |
Strip tension control apparatus
The tension of a strip can be controlled with high responsiveness and high accuracy despite its drastic external variation by threading the strip (1) between a transportation roll (2) and a movable...
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5454151 |
Arrangement for setting the tension of a thread
Arrangement (15) for adjusting the tension of a thread which is pulled from a spool by means of a thread take-off arrangement, has a thread measuring device (23). This thread measuring device,...
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5421534 |
Apparatus for and method of controlling tension of a filamentary material
To regulate the wire tension, a wire tension regulator is disposed on a winding device for electrical coils. A return roller and a contact roller can be mounted on the regulator for prebraking of...
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5402956 |
Two or three capstan tape drive
In a capstan driven tape transport, placing the tape into a "zero" tension condition before it engages the first of two tape speed metering capstans of the transport. "Zero" tape tension is a...
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5390482 |
Apparatus and method for sending out linear material
A arrangement is provided for paying-out a linear material. The method includes rotating a frame in a direction to pay-out the material; rotating a reel to unwind the material therefrom; utilizing...
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5383591 |
Interface device between a feeding device and a receiving station for photographic material
An interface device (10) connects in a light tight manner a feeding device (11) with a receiving station (12) fitted with a feed opening (13) and a driving device (60) liable to move a web (153)...
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5366130 |
Dancer roller having multi-rack and pinion tension control
A device is adapted to reduce as much as possible the effective length of a spring for providing a load on a mobile member, such as a dancer roller for absorbing the slackness in a web of packaging...
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5318796 |
Method for variably controlling the speed of a slave drive roller in a web coating machine
A method and apparatus is provided for controlling the speed of a slave drive roller in a coating machine. Speed of the slave drive roller at a second coater is regulated by an adaptive gain...
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5310105 |
Stock material strip feed controller
An apparatus for measuring and controlling lengths of movement of a continuous stock material strip which is intermittently fed by feed rollers along a predetermined path of travel to a machine...
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5277373 |
Apparatus and method for controlling tension in a moving material
A tension control apparatus for a material winder of the type including a material supply package and a material take-up package, an electric motor for driving the take-up package and a tension...
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