WO2007126353A1 - Device for threading a processing installation, such as a dryer - Google Patents
Device for threading a processing installation, such as a dryer Download PDFInfo
- Publication number
- WO2007126353A1 WO2007126353A1 PCT/SE2007/000362 SE2007000362W WO2007126353A1 WO 2007126353 A1 WO2007126353 A1 WO 2007126353A1 SE 2007000362 W SE2007000362 W SE 2007000362W WO 2007126353 A1 WO2007126353 A1 WO 2007126353A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roll
- segment
- conveyor belt
- tail
- roll portion
- Prior art date
Links
- 238000009434 installation Methods 0.000 title claims abstract description 14
- 239000000463 material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 description 9
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229920002678 cellulose Polymers 0.000 description 5
- 239000001913 cellulose Substances 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000010420 art technique Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
- D21G9/00—Other accessories for paper-making machines
- D21G9/0063—Devices for threading a web tail through a paper-making machine
Definitions
- the present invention relates to a device for feeding web material through a processing installation, such as a pulp dryer, by means of a conveyor belt, which conveyor belt is divided, along its longitudinal direction, into an essentially flat first segment and an essentially flat second segment, the device comprising an opening member and a guiding surface, which is located downstream of the opening member as seen in the direction of the travel of the conveyor belt, the opening member and the guiding surface being adapted for unfolding the conveyor belt by separating the first and second segments, the device further being provided with a spreader roll, which is located downstream of the guiding surface and which is adapted to keep the conveyor belt unfolded while a tail of said web material is placed on said first segment, a folding member being located downstream of the spreader roll and being adapted for folding said second segment over said first segment for to enclose the tail in the conveyor belt.
- a cellulose pulp production plant may include a wet forming station, in which a slurry comprising cellulose fibres is treated to form a wet cellulose based fibrous web, and a pulp dryer, in which the wet web is dried by means of blowing hot air towards the web.
- a pulp dryer in which the wet web is dried by means of blowing hot air towards the web.
- An object of the present invention is to provide a device for feeding web material through a processing installation, such as a pulp dryer, said device having means making it possible to dispense of an operator, who manually adjusts the position, in the horizontal plane, of a tail of the web material during a tail feeding procedure.
- the spreader roll comprises a first roll portion, a second roll portion, and a circumferential guiding track separating the first roll portion from the second roll portion, said first roll portion being adapted for supporting said first segment, said second roll portion being adapted for supporting said second segment, the first roll portion having a cylindrical outer surface.
- the present invention provides a solution which does not impose any additional wear on the tail or on the conveyor belt.
- the device further comprises a holding belt, which is located adjacent to the spreader roll, is adapted to travel in parallel to the first segment of the conveyor belt, and which is adapted to hold the tail pressed against said first segment until said second segment is to be folded onto said first segment.
- An advantage of the holding belt is that it provides for an efficient way of holding the tail in place until the second segment is folded on top of the first segment.
- a further advantage is that the holding belt exposes the tail to a minimum of wear, thereby decreasing the risk that the tail is broken.
- the holding belt also has the ability of pressing the tail towards the conveyor belt for a comparably long distance, such that the tail is safely held against the first segment of the conveyor belt up to the very moment the second segment is folded on top of the first segment for to enclose the tail between the first segment and the second segment.
- said holding belt is adapted to travel over a first pulley and a second pulley, the second pulley being located downstream of the first pulley as seen in the direction of the travel of the conveyor belt, the first pulley having a cylindrical outer surface.
- An advantage of this embodiment is that the cylindrical outer surface of the first pulley, in combination with the cylindrical outer surface of the first roll portion of the spreader roll, forms a horizontal, flat nip between the first segment of the conveyor belt and the holding belt, adjacent to the first pulley.
- the horizontal, flat nip makes it easier to grip a tail and increases the chances that a tail fed to the nip is also forwarded into the processing installation by means of the conveyor belt. Further, the risk that the tail slips out of the nip, once the tail has been caught in the nip, is decreased.
- the second pulley has a cambered outer surface.
- a second pulley having a cambered outer surface automatically keeps the holding belt in place such that it does not easily slip off the first and second pulleys.
- a driving mechanism is adapted for driving the holding belt.
- the driving mechanism which could, e.g., be a motor, a driving chain or a drive shaft, driving one of the pulleys, decreases frictional forces on the tail and increases the chance that the tail is successfully caught in the nip.
- the outer surface of said second roll portion is tapering outwardly from the guiding track.
- the second roll portion of the spreader roll supports the second segment of the conveyor belt, which second segment does not come into contact with the tail until the very moment the second segment is folded onto the first segment.
- the outer surface of the second roll portion of the spreader roll need not be cylindrical.
- a second roll portion which is provided with an outwardly tapering outer surface, decreases the risk that the second segment is folded onto the first segment, before the second segment is intended to do so. This lowered risk of a too early folding is believed to be due the fact that the first segment and the second segment are kept sepa- rated by more than 180° while passing over the spreader roll.
- the second roll portion which has an outwardly tapering outer surface, provides for a more controlled operation.
- the outer surface of said second roll portion is a conical outer surface or is a cambered outer surface.
- a second roll portion which has a conical outer surface or a cambered outer surface, has proven to be the best manner of providing an outwardly tapering outer surface, of the second roll portion, as regards safe and controlled operation, i.e., as regards control of the position of the conveyor belt and control of when the second segment of the conveyor belt is folded onto the first segment of the conveyor belt.
- At least one of said first roll portion and said second roll portion is provided with a knurling on its outer surface.
- a knurling ensures that the circumferential velocity of the spreader roll will be the same as, or at least very close to, the travelling velocity of the conveyor belt. Thus, it can be ensured that the conveyor belt slides against the guiding surface and not against the spreader roll.
- Fig. 1a is a schematic side view and illustrates a tail conveyor device, as seen from the side.
- Fig. 1b is an enlarged side view, and illustrates the position of two rolls in relation to each other.
- Fig. 2 is a schematic top view and illustrates the tail conveyor device, as seen from above.
- Fig. 3a is an enlarged cross-sectional view and illustrates a spreader roll according to the invention, as seen in the direction of the arrows Ill-Ill of Fig. 1a.
- Fig. 3b is an enlarged cross-sectional view and illustrates a spreader roll designed in accordance to a prior art technique.
- Fig. 4 is a schematic side view and illustrates the tail conveyor device while forwarding a tail.
- Fig. 5 is a schematic top view and illustrates the tail conveyor device while forwarding the tail.
- Fig. 6a is an enlarged cross-sectional view and illustrates a spreader roll according to a second embodiment of the present invention.
- Fig. 6b is an enlarged cross-sectional view and illustrates a spreader roll according to a third embodiment of the present invention.
- Fig. 1a illustrates, as seen from the side, a tail conveyor device 1 for feeding a tail of a web material through a processing installation, such as a dryer, which is not shown.
- Fig. 1b is an enlarged schematic side view and illustrates certain details of the tail conveyor device 1.
- Fig. 2 illustrates the tail conveyor device 1 as seen from above, i.e., as seen in the direction of the arrow Il of Fig. 1a.
- the tail conveyor device 1 is useful for, e.g., feeding a tail of a cellulose pulp web through a pulp dryer of the type Andritz Pulp Dryer.
- the process of feeding a tail through a processing installation, such as a dryer is generally referred to as threading the processing installation.
- the tail conveyor device 1 comprises a tail conveyor bar 2, which is supported on a structure 4. As indicated in Fig. 1a the tail conveyor bar 2 is provided with a fixing element 6, which fixes the tail conveyor bar 2 to the structure 4. As an option the fixing element 6 could be provided with a hinge 7, such that the tail conveyor bar 2 would be turnable in the horizontal plane. The optional hinge 7 would make it possible to turn the tail conveyor bar 2 out of position when a threading procedure has been finalized. At an end 8 of the tail conveyor bar 2, said end 8 being opposite to the fixing element 6, a guiding surface in the form a guiding roll 10 is rotatably mounted on the tail conveyor bar 2.
- the guiding roll 10 is provided with a central peripheral track and has outwardly tapering sections, which is per se known and which is not shown in detail in Fig. 1a. Further, a spreader roll 12 is rotatably mounted on the tail conveyor bar 2. The spreader roll 12 is preferably located directly after the guiding roll 10.
- Fig. 1 b illustrates how said "directly after” is to interpreted with respect to the location of the spreader roll 12 in relation to the guiding roll 10.
- "directly after” means that a shortest distance SD, which is the shortest distance between an outer surface 14 of the guiding roll 10, and an outer surface 16 of the spreader roll 12, is less than the largest diameter D1 of the spreader roll 12. Still more preferably the shortest distance SD, depicted in Fig. 1 b, is less than half of the largest diameter D1 , which is depicted in Fig. 1b, of the spreader roll 12.
- Fig. 1 b further illustrates that the largest diameter D1 of the spreader roll 12 is larger than the largest diameter D2 of the guiding roll 10.
- a driving chain 18 is arranged between a first gear 20, which is fixed to the guiding roll 10, and a second gear 22, which is fixed to the spreader roll 12.
- the first gear 20 and the second gear 22 have the same diameter and number of teeth.
- the guiding roll 10 and the spreader roll 12 will rotate by the same rpm.
- the tail conveyor device 1 further comprises an endless foldable tail conveyor belt 28.
- the foldable tail conveyor belt 28 is divided, along the longitudinal direction of the tail con- veyor belt 28, into an essentially flat first segment 30, and an essentially flat second segment 32.
- Fig. 2 illustrates a joint 34 in the form of a seem, which extends along the longitudinal direction of the tail conveyor belt 28. The seem divides the first segment 30 from the second segment 32.
- the conveyor belt 28 is foldable, by which is meant that the second segment 32 may be folded onto the first segment 30 in a folding procedure, and that the second segment 32 may then be unfolded from the first segment 30 in an unfolding procedure.
- the conveyor belt 28 travels from the dryer, not shown, in the direction of the arrow C.
- the conveyor belt 28 first reaches the opening roll 24. Upstream of the opening roll 24 the conveyor belt 28 is in a folded state, i.e., the first segment 30 is located on top of second segment 32, as is depicted in Fig. 1a.
- the opening roll 24 is that roll after which opening of the folded conveyor belt 28 can start. Between the opening roll 24 and the guiding roll 10 the conveyor belt 28 is "opened", by which is meant that the second segment 32 is unfolded from the first segment 30.
- the segments 30, 32 will gradually be separated by more than 180°.
- the opened conveyor belt 28 then runs over the guiding roll 10. Since the guiding roll 10 has outwardly tapering portions the opened conveyor belt 28 will remain "open" while passing the guiding roll 10.
- the conveyor belt 28 Downstream of the guiding roll 10 the conveyor belt 28 passes over the spreader roll 12, which spreader roll 12 preferably is, as described hereinbefore, located directly after the guiding roll 10, i.e., the spreader roll 12 is located downstream, with respect to the direction of travel of the conveyor belt 28, of the guiding roll 10 and preferably at a distance SD from the guiding roll 10, which distance SD is less than the largest diameter D1 of the spreader roll 12. Since the diameter D1 of the spreader roll 12 is larger than the diameter D2 of the guiding roll 10, and since the guiding roll 10 and the spreader roll 12 rotate at the same rpm, the circumferential velocity of the spreader roll 12 will be higher than the circumferential velocity of the guiding roll 10.
- a holding belt 36 is arranged for the purpose of holding a tail pressed against the first segment 30 of the conveyor belt 28 until the second segment 32 has been folded onto the first segment 30.
- the holding belt 36 runs over a cylindrical first pulley 38 and over a cambered second pulley 40.
- the holding belt 36 runs in a direction which is depicted by arrows in Fig. 1a.
- the second pulley 40 is located downstream of the first pulley 38, as seen in the direction of the travel of the conveyor belt 28.
- the first pulley 38 is located downstream of the spreader roll 12, as it is depicted in Fig. 1a.
- a nip 42 is formed between the conveyor belt 28 and the holding belt 36 adjacent to the first pulley 38.
- the spreader roll 12 has a first roll portion 44 and a second roll portion 46.
- a circumferential guiding track 48 which has the shape of a groove as depicted in Fig. 3a, separates the first roll portion 44 from the second roll portion 46.
- the first roll portion 44 is adapted for supporting the first segment 30 of the unfolded conveyor belt 28.
- the first roll portion 44 is cylindrical and thus the outer surface 16 is a cylindrical outer surface.
- the second roll portion 46 is adapted for supporting the second segment 32 of the unfolded conveyor belt 28.
- the second roll portion 46 is conical and tapers outwardly from the circumferential guiding track 48.
- the second roll portion 46 thus has a conical outer surface 17. Due to the fact that the outer surface 16 of the first roll portion 44 is cylindrical, whereas the outer surface 17 of the second roll portion 46 is conical, and tapers outwardly from the guiding track 48, the segments 30, 32 will remain separated by more than 180° while the conveyor belt 28 passes over the spreader roll 12, as is depicted in Fig. 3a. The result is that the segments 30, 32 will be prevented from folding onto each other at a too early stage.
- the joint 34 of the conveyor belt 28 fits in the circumferential guiding track 48.
- the cylindrical outer surface 16 of the first roll portion 44, and the conical outer surface 17 of the second roll portion 46, are each provided with a knurling, as is depicted in Fig. 3a.
- the knurling on the respective outer surfaces 16, 17 ensures that the spreader roll 12 will roll against the conveyor belt 28 without slipping, thereby ensuring that the circumferential velocity of the spreader roll 12 will correspond to the travelling velocity of the conveyor belt 28.
- the guiding roll 10 which is located upstream of the spreader roll 12 with respect to the direction of travel of the conveyor belt 28, is symmetrical and is provided with two conical surfaces 50, 52 tapering outwardly from a guiding groove 54.
- the guiding roll 10 has a smooth surface 56. Due to the fact, that the circumferential velocity of the guiding roll 10 is lower than the circumferential velocity of the spreader roll 12, the conveyor belt 28 will slide on the smooth surface 56, thereby providing the tension, which has been described above, in that section of the conveyor belt 28 which is located between the guiding roll 10 and the spreader roll 12.
- the nip 42 is formed between the first roll portion 44, which first roll portion 44 has the cylindrical outer surface 16, and the first pulley 38, which first pulley 38 has a cylindrical outer surface 37.
- the nip 42 has the form of a horizontally extending opening, or gap, which is located between the holding belt 36 and the first segment 30 of the conveyor belt 28.
- the nip 42 has the same horizontal level over its entire extension, from the left end to the right end of the nip 42, in accordance with the depiction in Fig. 3a.
- Fig. 3b illustrates a spreader roll 80, which is designed in accordance with the prior art technique.
- the spreader roll 80 is symmetrical and is pro- vided with two portions 82, 84, each of which portions 82, 84 tapers outwardly from the centre of the spreader roll 80.
- the spreader roll 80 thus has the same principal shape as a guiding roll 86, which is located upstream, with respect to the direction of travel of a conveyor belt 88, of the spreader roll 80.
- a cambered holding pulley 90 is adapted for pressing a tail, which is not shown in Fig. 3b, towards the conveyor belt 88 until the latter has been folded to enclose the tail.
- the spreader roll 80 which is designed according to the prior art technique, is efficient as long as the tail is fed manually into a narrow nip 92. With automatic feeding of a tail to the nip 92 it is difficult to obtain the required adjustment precision for feeding the tail into the narrow nip 92. In addition the tail may, once the tail has been caught in the nip 92, quite easily slide out of the nip 92.
- Fig. 4 and Fig. 5 illustrate the tail conveyor device 1 after a tail 58 of web material, such as cellulose pulp, has been caught in the nip 42.
- the tail conveyor device 1 With the tail conveyor device 1 according to the present invention the tail 58 is efficiently caught in the nip 42. Further, the risk that the tail 58 may slide out of the nip 42 is minimal. Due to these facts, efficient threading of the processing installation is ensured, and successful automatic feeding of the tail into the nip 42 is made possible.
- automated is meant that an optional cutting device 59, which is schematically depicted in Fig. 4, automatically cuts the tail 58 and directs the cut end of the tail 58 towards the nip 42.
- the cutting device 59 there is no need for manual interference in the threading procedure.
- the tail 58 typically has a width W, which is depicted in Fig. 5, which width W is 80-250 mm.
- the tail 58 has a thickness of 1.5-2.5 mm.
- the holding belt 36 holds the tail 58 pressed against the first segment 30 of the conveyor belt 28, until the second segment 32 is folded over the first segment 30 to enclose the tail 58 between the two segments 30, 32, as is best depicted in Fig. 5.
- the tail 58, enclosed between the segments 30, 32 of the conveyor belt 28, is then forwarded past the folding roll 26 and further into the processing installation, which is not shown in Fig. 4 and Fig. 5.
- an optional motor 41 is shown.
- the motor 41 is adapted to drive, by means of a shaft 43, the cambered second pulley 40, and, thus, the motor 41 is adapted to drive the holding belt 36.
- the rpm of the motor 41 can be controlled so that the travelling velocity of the holding belt 36 is in the same range as the travelling velocity of the tail conveyor belt 28.
- the motor 41 is adjusted so as to provide a travelling velocity of the holding belt 36, which travelling velocity is within a range of -3% to +3% of the travelling velocity of the tail conveyor belt 28. Due to the motor 41 driving, via the second pulley 40, the holding belt 36, the frictional forces on the tail 58 are decreased. This results in a decreased risk that the tail 58 is broken.
- Fig. 4 an optional driving chain 45 is shown.
- the driving chain 45 is adapted for driving the first pulley 38 from the spreader roll 12, which in turn is driven by the tail conveyor belt 28, in such a manner that the travelling velocity of the holding belt 36 is similar to the travelling velocity of the tail conveyor belt 28.
- the driving chain 45 which is depicted in Fig. 4, represents an alternative solution to the motor 41, which is depicted in Fig. 5.
- Fig. 6a illustrates a further embodiment of the present invention in the form of a spreader roll 112.
- the spreader roll 112 has a first roll portion 144 and a second roll portion 146.
- a circumferential guiding track 148 separates the first roll portion 144 from the second roll portion 146.
- the first roll portion 144 is cylindrical and has a similar design and function as the first roll portion 44 of the spreader roll 12, hereinbefore described with reference to Fig. 3a.
- the second roll portion 146 is adapted for supporting the second segment 32 of the unfolded conveyor belt 28.
- the second roll portion 146 is cambered, and tapers outwardly from the circumferential guiding track 148.
- the second roll portion 146 has a cambered outer surface 117.
- the outer surfaces of the first and second roll portions 144, 146 are each provided with a knurling.
- Fig. 6b illustrates yet another embodiment of the present invention in the form of a spreader roll 212.
- the spreader roll 212 has a first roll portion 244 and a second roll portion 246.
- a circumferential guiding track 248 separates the first roll portion 244 from the second roll portion 246.
- the first roll portion 244 is cylindrical and has a similar design and function as the first roll portion 44 of the spreader roll 12, hereinbefore described with reference to Fig. 3a.
- the second roll portion 246 is adapted for supporting the second segment 32 of the unfolded conveyor belt 28.
- the second roll portion 246 is cylindrical and thus has a cylindrical outer surface 217. Consequently the spreader roll 212 is symmetrical as regards the shape of the first and second roll portions 244, 246.
- the outer surfaces of the first and second roll portions 244, 246 are each provided with a knurling.
- a guiding surface has the form of a guiding roll 10, the circumferential velocity of which is lower than the travelling velocity of the conveyor belt 28, making the conveyor belt 28 slide over the smooth surface 56 of the guiding roll 10.
- a guiding surface could be provided in the form of a smooth steel plate, having a guiding track and two outwardly tapering portions. The smooth steel plate would not rotate at all, making the conveyor belt slide over its smooth surface, thereby providing the desired tension in that section of the conveyor belt 28 which is located between the smooth steel plate and the spreader roll 12, which is located downstream of the smooth steel plate.
- a motor 41 is used for driving the second pulley 40. It will be appreciated that a motor could, as alternative to the motor 41 , be adapted for driving the first pulley 38.
- a further alternative is to provide a driving chain, for instance the driving chain 45 depicted in Fig. 4, or a driving shaft for driving any one of the pulleys 38, 40 from the spreader roll 12.
- a driving mechanism such as a motor 41 , a driving chain 45 or a driving shaft, which driving mechanism is adapted for driving the holding belt 36, with the purpose of having the holding belt 36 travelling at a travelling velocity which is similar to the travelling velocity of the tail conveyor belt 28.
- the opening member is provided in the form of the opening roll 24, and that the folding member is provided in the form of the folding roll 26. It will be appreciated that other types of opening members and folding members could be used, such as steel plates over which the conveyor belt 28 may slide.
- To employ the opening roll 24 as the opening member, and to employ the folding roll 26 as the folding member is usually preferred for reasons of low friction and effective unfolding and folding, respectively.
- a cutting device 59 is used for cutting the tail and forwarding the end of the cut tail to the nip 42. It is, as alternative, possible to employ the tail conveyor device 1 of the present invention in connection to manual cutting of the tail. In the latter case, an operator may cut the tail 58 and forward the end of the cut tail 58 to the nip 42. The operator need not, however, continuously adjust the position of the tail 58 in the nip 42 during the further threading procedure.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0711066A BRPI0711066B1 (en) | 2006-04-28 | 2007-04-18 | device for forming wires in a processing facility, such as a dryer |
CN2007800154277A CN101432482B (en) | 2006-04-28 | 2007-04-18 | Device for threading a processing installation, such as a dryer |
EP07748027.5A EP2013414B1 (en) | 2006-04-28 | 2007-04-18 | Device for threading a processing installation, such as a dryer |
CA2650753A CA2650753C (en) | 2006-04-28 | 2007-04-18 | Device for threading a processing installation, such as a dryer |
US12/298,766 US20090199990A1 (en) | 2006-04-28 | 2007-04-18 | Device for threading a processing installation, such as a dryer |
ZA2008/08630A ZA200808630B (en) | 2006-04-28 | 2008-10-09 | Device for threading a processing installation,such as a dryer |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE0600940A SE529834C2 (en) | 2006-04-28 | 2006-04-28 | Device for threading a process installation such as a dryer |
SE0600940-1 | 2006-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007126353A1 true WO2007126353A1 (en) | 2007-11-08 |
Family
ID=38655791
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/SE2007/000362 WO2007126353A1 (en) | 2006-04-28 | 2007-04-18 | Device for threading a processing installation, such as a dryer |
Country Status (8)
Country | Link |
---|---|
US (1) | US20090199990A1 (en) |
EP (1) | EP2013414B1 (en) |
CN (1) | CN101432482B (en) |
BR (1) | BRPI0711066B1 (en) |
CA (1) | CA2650753C (en) |
SE (1) | SE529834C2 (en) |
WO (1) | WO2007126353A1 (en) |
ZA (1) | ZA200808630B (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1128196A (en) * | 1965-12-27 | 1968-09-25 | Svenska Flaektfabriken Ab | An apparatus for threading a web material |
US3759434A (en) * | 1972-09-27 | 1973-09-18 | Svenska Faltfab Ab | Threading mechanism |
WO1999039049A1 (en) * | 1998-01-30 | 1999-08-05 | Valmet Corporation | System and method for threading a moist web in a pulp dryer or the like from one section to the following section |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1357256A (en) * | 1919-06-16 | 1920-11-02 | Sargents Sons Corp C G | Apron for driers and the like |
US1658095A (en) * | 1925-12-14 | 1928-02-07 | American Telephone & Telegraph | Feeding device for belt conveyers |
US2821285A (en) * | 1956-04-09 | 1958-01-28 | Ross Engineering Of Canada Ltd | Conveyor system for pulp dryers |
US2966065A (en) * | 1959-06-19 | 1960-12-27 | Adamson Stephens Mfg Co | Belt conveyors |
US3140621A (en) * | 1962-04-02 | 1964-07-14 | Guthrie B Stone | Pulley hub with crowned outer face |
US3399465A (en) * | 1967-01-16 | 1968-09-03 | Svenska Flaektfabriken Ab | Apparatus for threading a web material |
SE359592B (en) * | 1971-11-01 | 1973-09-03 | Svenska Flaektfabriken Ab | |
US4067567A (en) * | 1977-02-18 | 1978-01-10 | Mcneil John | Sheet roll assembly for copying machine |
US4693405A (en) * | 1985-02-07 | 1987-09-15 | Ross Pulp And Paper Inc. | Threading belt for pulp floater dryers |
US5979732A (en) * | 1994-11-04 | 1999-11-09 | Roll Systems, Inc. | Method and apparatus for pinless feeding of web to a utilization device |
US6619657B2 (en) * | 2000-03-14 | 2003-09-16 | Canon Kabushiki Kaisha | Curl correction device, and image forming apparatus having the curl correction device |
US20020112940A1 (en) * | 2001-02-16 | 2002-08-22 | Scott Dickover | Methods and apparatus for improved self-checkout system |
-
2006
- 2006-04-28 SE SE0600940A patent/SE529834C2/en unknown
-
2007
- 2007-04-18 BR BRPI0711066A patent/BRPI0711066B1/en active IP Right Grant
- 2007-04-18 WO PCT/SE2007/000362 patent/WO2007126353A1/en active Application Filing
- 2007-04-18 CN CN2007800154277A patent/CN101432482B/en active Active
- 2007-04-18 EP EP07748027.5A patent/EP2013414B1/en active Active
- 2007-04-18 CA CA2650753A patent/CA2650753C/en active Active
- 2007-04-18 US US12/298,766 patent/US20090199990A1/en not_active Abandoned
-
2008
- 2008-10-09 ZA ZA2008/08630A patent/ZA200808630B/en unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1128196A (en) * | 1965-12-27 | 1968-09-25 | Svenska Flaektfabriken Ab | An apparatus for threading a web material |
US3759434A (en) * | 1972-09-27 | 1973-09-18 | Svenska Faltfab Ab | Threading mechanism |
WO1999039049A1 (en) * | 1998-01-30 | 1999-08-05 | Valmet Corporation | System and method for threading a moist web in a pulp dryer or the like from one section to the following section |
Also Published As
Publication number | Publication date |
---|---|
EP2013414B1 (en) | 2014-08-13 |
US20090199990A1 (en) | 2009-08-13 |
EP2013414A4 (en) | 2010-06-09 |
ZA200808630B (en) | 2009-12-30 |
CA2650753C (en) | 2014-07-08 |
CN101432482B (en) | 2011-04-20 |
CN101432482A (en) | 2009-05-13 |
SE529834C2 (en) | 2007-12-04 |
EP2013414A1 (en) | 2009-01-14 |
SE0600940L (en) | 2007-10-29 |
CA2650753A1 (en) | 2007-11-08 |
BRPI0711066B1 (en) | 2017-05-09 |
BRPI0711066A2 (en) | 2011-08-23 |
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