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7207208 |
Blown installation of optical fibres and method and apparatus for determining the length of a passage along which an optical fibre is to be blown
An apparatus ( 12 ) is provided for use in determining a length at least representative of the length of a tube that defines a passage in an optical fibre cable ( 10 ) along which an optical fibre...
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6998021 |
Arrangement for paper machine, and blow box
In a paper machine which comprises process elements and a measuring beam, the measuring beam is arranged at least at one paper machine process element so that a measuring device for measuring...
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6895811 |
Detection of small holes in laminates
Laminates are tested for the presence of small holes. For example, when a laminate is moving through a processing machine in a direction along a length of the laminate, a vacuum is applied to a...
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6769297 |
Method and equipment for measuring tension of moving web
A method and equipment for measuring the tension of a moving web. The tension of the moving web is measured by means of a measuring element provided with a guide surface which the moving web is...
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6743338 |
Method and measuring device for measuring at least one property of moving web
The measuring device comprises at least one measuring head having a reference part, which comprises a reference surface against which the moving web is supported. The reference surface comprises a...
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6662630 |
Method for measuring slide bearing pressure in a deflection-compensated roll with a fixed shell
A deflection compensated roll has a stationary support structure and a shell rotatably arranged around it by means of slide bearings. The shell is additionally supported on the support structure...
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6604418 |
Liquid-level detection method and device thereof
An ALC circuit is turned on (S 1 ), a nozzle is shifted to a sampling position (S 2 ), and after the ALC circuit has been turned off (S 3 ), the nozzle is allowed to start discharging air from its...
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6494081 |
Method of measuring properties of paper, and arrangement in a paper measuring apparatus
A measuring probe in a paper measuring apparatus is kept at a distance from the surface of the paper by feeding medium between the paper and a surface of the measuring probe through a feed hole in...
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6352615 |
Method and equipment in a paper/board machine for regulation of the difference of draw
The invention concerns an equipment in a paper/board machine for regulation of the difference of draw. In the solution in accordance with the invention, the difference of draw in the web is...
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6264793 |
Method and apparatus for measuring caliper of paper
The invention relates to a method and apparatus for measuring the caliper of paper substantially continuously during papermaking. A sensor (3a, 3b) is arranged above and/or under the paper (2), the...
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6119506 |
Apparatus and method for determining transport properties of porous materials
An apparatus and method for measuring the mass transport properties of pos materials. The apparatus is a permeation or diffusion cell that comprises two outer portions with longitudinal channels...
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6032517 |
Device and process for measuring the rigidity of flat mail
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6029502 |
Positioning system with pressure measurement in the layer of air between the measuring head and the material being measured
The object of positioning a measurement probe (5) very close to but not in contact with moving measured material (9) is solved in accordance with the invention in that air is blown through a nozzle...
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5983707 |
Rotor for a shapemeter
A rotor for a shapemeter is shown in the figure and comprises an inner annulus (6) connected to and spaced from a coaxial outer annulus (7) by means of rubber o-rings (10). The air gap formed...
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5725737 |
Apparatus for the detection of holes and plugged spots
The invention relates to an apparatus for detecting plugged sites and holes and for measuring of the water permeability properties of pervious machine fabrics. Plugged sites in a permeable fabric...
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5697247 |
Apparatus for measuring the thickness and/or irregularity of slivers
The invention relates to a device for measuring the thickness and/or irregularity of slivers, with a compacting part (2) compacting the sliver and with a measuring part which has a gutter-like...
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5501100 |
Device for measuring the mass of fiber slivers
A device for measuring the mass of fiber slivers contains an entry part for the fiber sliver to be measured and a measuring part adjoining the entry part. Arranged on the measuring part are two...
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5412976 |
Apparatus for determining the air permeability of a cloth web
For continuous measurement of the air permeability of a moving or stationary cloth web, the latter is guided over a measuring orifice which opens at the end of a measuring tube through a convexly...
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5351374 |
Method and an apparatus for the continuous crimping of thermoplastic threads
Threads made from thermoplastic materials are textured, in that they are heated by a delivery medium in a delivery channel and conveyed through an orifice into a stuffer box where they are stuffed...
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5317898 |
Method and apparatus for detecting thickness variation in sheet material
The detection of thickness variations in sheet material, more specifically the presence or absence of labels on a moving web, is accomplished by providing two spaced apart nozzles, an entry for...
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5308010 |
Method for eliminating imperfections in a wound web roll
In the winding of webs of plastic films on cores, defects in the web caused by hard streaks in the wound roll are avoided or reduced by a new method of control. In this method, measurements are...
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5298073 |
Two sensor for determining spacing between surfaces
A method of and apparatus for determining the spacing between a ribbon of hot glass and a coater extending over the ribbon for forming a coating thereon by chemical vapor deposition. Position...
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5243849 |
On-line caliper gauge
An air bearing gauge 10 is characterized by a flat land 30, instead of the prior art's "knife-edge" 30', so as to provide an area 32 over web 12 through which pressurized gas flows in escaping from...
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5226239 |
Aerodynamic caliper gauge
A contacting caliper gauge measures the thickness of a moving sheet material. The gauge has two heads, one on either side of the sheet. The sheet contacting pads of the caliper gauge are...
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5203201 |
On-line web filtration efficiency test method
An apparatus and method for measuring the filtration efficiency of a moving air-permeable web. The apparatus includes a sampling head with an upstream head and a downstream head disposed on...
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5094718 |
Method and apparatus for control of web flutter
An apparatus and method for suppressing flutter of a moving web manufacturing operation to include a sensor for sensing the pressure of air in a region proximate the web, which sensor generates a...
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5052233 |
Method and apparatus for measurement of web tension
In a method and apparatus for measuring web tension, the tension of a moving web is measured by locating close to the web (14) a gauging bar (1), which has its outer surface curved in the machine...
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4995271 |
Appartaus for determining the permeability of a web to air
The testing head of an apparatus for determining the permeability of a web to air comprises two rotatable parallel contact rollers, which are mounted between two end walls and comprise a...
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4992142 |
Method for determining amplitude and frequency of web flutter
An apparatus and method for determining the frequency and amplitude of flutter of a moving web in a web manufacturing operation, is shown to include a sensor for sensing the pressure of air in a...
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4991425 |
Portable gauge for measuring air flow in a papermaking machine
An apparatus for measuring air permeability and boundary air flow for a papermaking fabric, such as a dryer felt. The apparatus includes a housing having an open front end bordered by a lower...
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4979389 |
Method and apparatus for detecting surface flaws in electrical cable plastic jacketing
This invention employs principles associated with air-lubricated thrust bearings, to provide highly sensitive indicators of the presence of defects along the surface of a cable insulative layer. A...
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4969360 |
System for measuring the cyclic speed and rotational position of a traveling looped belt
A system for determining the rotational, or cyclic, speed and rotational position of a looped traveling belt, such as a felt in a papermaking machine, utilizes a discontinuity, or caliper...
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4968386 |
Apparatus for determining amplitude and frequency of web flutter
An apparatus and method for determining the frequency and amplitude of flutter of a moving web in a web manufacturing operation, is shown to include a sensor for sensing the pressure of air in a...
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4940221 |
Suction-type sheet-separating device for a feeder of a printing press
A suction-type sheet-separating device for a feeder of a printing press has suction-type grippers for lifting off an uppermost sheet from a pile of sheets and for transferring the lifted-off sheet...
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4936566 |
Apparatus for picking up a proper number of fabric workpieces
A method and an apparatus for picking up a fabric workpiece by applying vacuum provides two vacuum sensors; one for a sample fabric and the other for a fabric workpiece to be picked up. Where the...
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4892621 |
Method and device for measuring permeability/penetrability of fabric in a paper machine
The present invention concerns a method in a paper machine for the measurement of air penetrability or permeability of fabrics penetrable by air, in particular of a wire or felt. In the method, the...
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4877485 |
Sheet inspection station with pneumatic sheet guide
A sheet inspection station including pneumatic means for guiding the sheet past one or more measurement sensors in non-contacting fashion, thus eliminating measurement error resulting from...
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4864853 |
Apparatus for measuring the thickness of fibre slivers
The apparatus comprises a compression member (T) and a measuring device arranged thereon for measuring the thickness of a fibre sliver passing through a measuring duct (4). The measuring device is...
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4825030 |
Device and process for preventing the breaking of a metal wire
Device placed at the outlet of a machining zone and having an outflow gauge equipped with two barrels in which a metal wire passes, an electrical current running through the wire which travels...
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4809527 |
Shapemetering apparatus for continuous monitoring and/or correction of the profile and flatness of rolled metal strip and the like
A shape metering process and related apparatus for continuously detecting and measuring the profile and flatness of a rolled metal strip or a non-metallic strip coming off mill rolls, and for...
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4768376 |
Polyethylene coating adhesion testing
A method and an apparatus for testing the adhesion between the polyethylene coating and paperboard stock of polyethylene coated paperboard stock, such stock typically used in forming milk and fruit...
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4756183 |
Method and apparatus for measuring air permeability of a wall-like or sheet-like element
Method and Apparatus for Measuring Permeability to Air of a Wall-Like or Sheet-Like Element, comprising the use of a measurement head including a blower having an air-discharge nozzle, a blade...
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4730481 |
Device for testing the air permeability of an article
An improved device for testing the air permeability of an article, particularly felts and screens associated with the manufacture of paper products. The improved device incorporates a measuring...
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4711121 |
Method and equipment for detecting pinholes of hollow filament
An improved method and an equipment for detecting a pinhole in hollow filament, wherein the improvement comprises passing the hollow filament through a liquid maintained at a pressure higher than...
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4696185 |
Method and apparatus for controlling the dye receptivity of textiles
For controlling the dye receptivity or color absorption capacity of textile goods by means of air or sound, a web is continually guided between transmitter and receiver, and measured values...
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4676091 |
Method and device for continuous measurement of porosity
The porosity of a strip of material is continuously computed by causing air to be drawn through the material as the strip moves across a perforated head situated atop a chamber in which the...
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4672841 |
Measuring head for measuring the porosity of a moving strip
The invention relates to a measuring head for measuring the porosity of a moving strip of porous material. The measuring chamber of the measuring head is covered by a measuring plate in which...
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4647855 |
Pneumetic surface follower with position restoring force
Apparatus for measuring thickness, two light measuring heads (2, 3) being mounted by air bearings in housings on either side of the web (1). The measuring heads are provided with specially...
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4608856 |
Double feed detection device
A double feed detector to detect the feeding of multiple sheets into processing equipment such as printing presses which includes a reciprocally mounted gauge tube with a passage opening onto its...
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4581918 |
Apparatus for non-contact thickness gauging of disc or sheet objects
An apparatus for non-contact gauging the thickness or variations in thickness of disc or sheet objects, for example banknotes, comprising at least two opposed gauges (1,2), between which the object...
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