US2666368A - Paper machinery - Google Patents

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Publication number
US2666368A
US2666368A US190184A US19018450A US2666368A US 2666368 A US2666368 A US 2666368A US 190184 A US190184 A US 190184A US 19018450 A US19018450 A US 19018450A US 2666368 A US2666368 A US 2666368A
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Prior art keywords
motor
plug
refiner
drive
switch
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US190184A
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Stephen A Staege
John H Pearson
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Black Clawson Co
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Black Clawson Co
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Priority to US190184A priority Critical patent/US2666368A/en
Priority to GB23127/51A priority patent/GB694765A/en
Priority to FR1051337D priority patent/FR1051337A/fr
Priority to DEB17161A priority patent/DE969094C/de
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Publication of US2666368A publication Critical patent/US2666368A/en
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    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/20—Methods of refining
    • D21D1/22—Jordans
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D1/00—Methods of beating or refining; Beaters of the Hollander type
    • D21D1/002—Control devices

Definitions

  • PAPER MACHINERY Filed Oct. 14, 1950 3 Sheets-Sheet 5 Ila-5
  • VACUUM 7 RHEOSTAT REVERSING GAGE yg!
  • SWITCH suc'nou RELAY HEAD Box COUCH TIMER 1 1
  • ROLL l 5 CONTROL cmcurrs naveasms swn'cu gmwwtow STEPHEN A.
  • STAEGE '5 JOHN H. PEARSON WZMAA all ATTORN EYJ Patented Jan. 19, 1954
  • This invention relates to apparatus for controlling the refining action of jordans and like refiners which include a tapered plug or like refining member.
  • the invention has particular relation to apparatus for controlling the refining action of such a refiner by adjusting the axial position of the plug in the shell in accordance with the desired spacing of the relatively moving working surfaces of the plug and shell, and one of the principal objects of the invention is to provide control apparatus for this purpose in the form of a simple and self-contained unit which is adapted for mounting directly on the frame of the refiner, which includes both a motor and a manually operated drive for the plug adjusting parts, and which is adapted for direct connection with the operating circuits of the refiner for selectively automatic or manual operation to maintain predetermined load conditions on the drive motor by adjusting the plug in accordance with the desired characteristics in the refined stock.
  • the invention also makes special provision for the protection of the refiner against damage resulting from causes such as failure of the stock flow or stoppage of the refiner motor when the control apparatus is set for automatic operation.
  • These safety features are provided by means of switches so connected in the operating circuits that the plug is automatically backed off to increase its clearance in the shell in the event of either stoppage of the refiner motor or loss of pressure in the stock supply below a desired range, thus preventing damage to the refiner which might otherwise result from movement of the plug inwardly of the shell.
  • Another feature of the invention giving additional protection to the refiner is the provision of a selective time control for backing the plug out of the shell following completion of a batch refining operation, this control being effective to cause the adjusting motor to operate for a timed interval assuring adequate clearance to prevent damage to the refiner motor at the start of the next batch operation.
  • the invention has special application to the control of a refiner in a stock supply system for a high speed paper machine, where unless changes in the stock characteristics are promptly corrected or compensated for, the formation of the web or sheet may be seriously affected.
  • the control apparatus of the present invention not only is the plug adjusted automatically in the event of change in the characteristics of the stock causing variation in the load on the refiner motor, but the apparatus also is provided with manually operable controls which may be located at a convenient station such as for operation by the machine tender, who can thus effect prompt correction of a change in the stock characteristics causing variation in the reading of the usual vacuum gauge for the suction couch roll. It is also an object of the invention to provide for automatic adjustment of the desired maintained load on the refiner motor in accordance with changes in the suction conditions at the suction couch roll as registered by the vacuum gauge.
  • Another advantageous feature of the invention is of particular importance for installations where variation may occur in the voltage or power factor as supplied to the refiner motor.
  • the control apparatus in such an installation When the control apparatus in such an installation is actuated by a current sensitive control, it may be operated as a result of variation in the voltage or power factor when in fact the characteristics of the stock itself have not changed. Accordingly it is an object of the invention to provide the control apparatus for use with a watt sensitive control of such high sensitivity as to maintain the desired adjusted position of the plug in accordance with the actual power requirements of the refiner motor for desired refining characteristics while at the same time preventing variation in the voltage supply or power factor from undesirably afiecting the adjustment or operation of the refiner.
  • Fig. l is a wiring diagram illustrating the operation of the control apparatus of the invention in conjunction with a jordan type refiner and a watt sensitive control relay;
  • Fig. 2 is a plan view of the control unit of the invention.
  • Fig. 3 is a front view of the unit, partly in elevation and partly broken away in vertical section;
  • Fig. 4 is a sectional view chiefly on the line ic-4a of Fig. 3 and with the clutch portion in section on the line 4b4b of Fig. 3;
  • Fig. 5 is a schematic wiring diagram illustrating the operation of the invention with the load on the refiner motor adjusted by the vacuum gauge for the suction couch roll of the paper machine;
  • Fig. 6 is a fragment of a wiring diagram illustrating the operation of the invention in conjunction with a current sensitive control relay.
  • Fig. 1 shows a somewhat schematic arrangement of the wiring diagram for a refiner of the jordan type which is provided with a drive motor II for rotating the plug l2 in a shell l3 having inlet and discharge pipes l4 and respectively.
  • the axial position of the plug in the shell is controlled by the adjusting unit indicated generally at H shown in detail in Figs. 2 to 4, and which includes a housing adapted to be mounted directly on the frame of the refiner l0; as indicated at 21 in Fig. 4.
  • the adjusting screw 22 for the plug is journaled in suitable hearings in the housing and projects therefrom for connection tn the plugshaft, and a worm gear 24 is splined thereon within the housing 29.
  • a shaft 25 is also journaled Within housing 20 in suitable bearings and carries a worm 2B which meshes with the worm gear 24.
  • the shaft 25 extends outwardly atone side of housing for manual rotation, and the hand wheel carries an indicator band 28' which cooperates with a pointer 29 on the housing to indicate the extent of rotation of shaft 25.
  • a motor 30, shown-as of the gear head type, is mounted on the end of housing 20 opposite the hand wheel 21, andit drives a. shaft 3i carrying one member 32 of aclutch, shown as a multiple disk clutch.
  • a complementary clutch member it! is splined on the end of shaft 25 for selective engagement with clutch member 32 to effect motor driving of shaft 25".
  • a handle M is mounted on the outer end of shaft 35 and'is' provided with a detent 4! for releasably holding it in either of two selectedpositions retainingthe clutch members in engagement for-automatic operation or out of engagement for manual operationof the control unit, as indicated'by the indicia platen.
  • a look screw having a bandie provides for releasably locking the thrust nut to the adjusting screw when desired.
  • the bearing unit 45 is secured against axial movement with respect to the plug shaft 46' for movement therewith with respect to the shell l3 to adjust the position of the plug within the shell, the outer end'of the shaft Mihaving a bore Gatherein to receive the end'of the adjusting screw 22 in telescoping relation.
  • the gearing and'threaded connection ofthe screw 22 are preferably arranged to provide for relatively slow adjusting movement of the plug, for example axial movement of the orderof inch per minute having been found satisfactory.
  • the operating arm 52 for switch 50 is adapted to be contacted by a pin 53 projecting from the bearing unit 45 towards housing 20.
  • the lubricating inlet to the housing has a breather cap 55.
  • Fig. 1 shows a wiring diagram for operating the control unit I? in accordance with; the wattage load on the drive motor H- for the refiner Ill.
  • the motor II has a main starter indicated generally at iii), the motor ll being of the 3-phase type. and having power lines Si, 62 and B3, and the starter 60 includes the usual start and stop pushbutton switches 65 and 56, respectively, togetherwith overload: and time interlocked relays.
  • the motor 30 is similarly shown as of the 3-phase type provided with a reversing magnetic switch 'Hliand power lines H, 12 and 13. Power for operation of the control circuit for motor 30 is provided by a step-down transformer M from the lines BI and 63, and the control circuit includes a three-position manually operable. selector switch 15 for selecting manual or automaticoperation of the control unit, the switch Hi havcing contacts 16, 11 and 18.
  • Fig. L showsthe switch I5. shifted to its contact 16 for automatic control. of the refineries! means of a watt sensitive relay indicated; gen-- erally at 8
  • the relay 80 also includesavoltage coil &6:' which is wound aroundthe armature. 8d. but is; fixed in stationary relation withthe contactsB-Ila and 84 so that the armature moves with IE! spect thereto. This coil 86 is connected witlma. parallel circuit comprising av resistor H and a.
  • a current coil 90 is wound around the amine ture 81 for movement therewith with respecttw the potential coil 86, and'a current compensating: coil 94- is also woundl around the armature H: but is fixed in stationary relation wlththe con tacts Stand M- andthe-potential coilfifi, the coil. Slbeing used to counteraot-the-induotive effect 8 6 on the current coil: 985;.
  • are connected with the power line62 by a current transformer 92, and afixed resistor 93' is provided for preventing'the coilsfllh and 9-! from burning out duetotheir low ohmic value.
  • a rheostat 95 provides for oontrolling thecur rent through coils 9B and Bi in accordance with.
  • witlrtlie relay arranged and connected as shown, the positionof the armature Bl with. re-- spent to coils ae and 84, andhencethepositlon.
  • the switch I00 comprises a relay having its operating coil connected with the power lines 6
  • the switch Illl comprises a similar relay having its operating coil connected across the control circuit through the transformer 14, and the circuit for this coil includes a pressure switch I having a pressure connection I06 with the inlet or discharge pipe for the refiner, shown as the discharge pipe I5, with this connection being arranged to maintain the switch I05 closed only when th proper pressure exists in the system through the refiner.
  • the motor will accordingly operate until the resulting changed setting of the plug increases the load on the refiner motor sufllciently to restore the desired load condition. Also, energizing of the relay II I breaks the circuit through its upper contacts to the signal light III), and at the same time a circuit is completed through the contact 83 to a signal light I I5 which may be conveniently red, and this light remains on as long as the motor 30 is in operation in the direction to move the plug inwardly of the shell.
  • a third signal light II6 will be lighted by a circuit completed through the contact 84 as shown, this light being conveniently green, and the light III) will be ofl as a result of the breaking of the circuit thereto through the upper contacts of relay I I2 when the latter is energized.
  • the light II5 will similarly be off owing to the fact that there is no circuit through the contact 83.
  • Push button switches are provided for manual operation of the control when the switch I5 is shifted to its contact 11.
  • the push button switch I20 completes the circuit through switch III for movement of the plug inwardly of the shell, and alternatively the push button switch I2I may be closed to cause the plug to back off as described. It will also be noted that with the circuit set for manual operation, the several signal lights will operate in the same manner as described for automatic control.
  • the contact I8 is connected through a line I24 with a timer I25, which may be of a conventional motor driven cam type, and a line I26 completes the energizing circuit for the timer motor.
  • a line I27 leads from the timer to the circuit through the reversing switch 10 for energizing motor 33 in the direction to back the plug, and the action of the timer when energized through the switch contact I8 is to cause motor 30 to operate for a preset time interval sufiicient to back the plug out until the desired clearance is obtained and then to stop.
  • the timer is reset when the switch I5 is shifted to either of its contacts 16 or II, at which time the motor 30 can be operated in the opposite direction, either automatically or through the push button switch I20, to move the plug inwardly of the shell to the proper setting in accordance with the desired load conditions on the refiner motor.
  • the: refiner plug will be adjusted as required to maintain the load conditions on the refiner motor determined: bythe selected setting of the rheostat 95.
  • the invention also'provi-des for further automatic adjustment of the: refining. action of the refiner such as may be required to maintain constant conditions of webformation on the associated paper machine, with this control being eflccteddn accordance with changes in the web conditions. as registered by the vacuum gauge for the suction couch roll or suction homes.
  • This desired: control is afforded by automatic adjustment of the load regulating rheostat to: compensate for variations in the suction conditions-es registered: by the vacuum gauge,- and Fig-r illustrates suitable control circuits. in accord ance with. the invention for. this purpose.
  • the rheostat IEII corresponds to rheostat- 95in Fig. l, and the several control circuits of Fig. l are represented diagrammatically at IE1 and operate as described to control the rover-sing switch I0 for thuzrplug adjusting motor 30:
  • the rheostat IE0 is provided with a reversible adjusting motor Ifii controlled by a reversing swiuch wawhmn is arrangedifor'selectivs actuation. in. response to fluctuations of the: gauge from its: desired setting for exampleby means'or stationary contacts cooperating with a: movable contact carried by the moving unilacatcmmembecof the; gaugawith: the oontaets'bes ing adjustable to complete the actuating circuit to the switch I68 whenathevacuum changes from its desired value by a predetermined amount such as car inch of mercury.
  • sufilcientls' to: cause a measurable change in the suction condibions at the couch roll Hit without accompanying change in the load the refiner motor liIf sufilcient to actuate the control relay an. the switch I556 will be energized: to operate motor I-Bfiand change the setting of the monster tool. which will in turn actuate the control circuits Hill to drive the plug: adjusting motor 38' as dc'iscribed.
  • ITO shouldpeueficrablp be of the time delay type to prevent iii flroml res peating its cycle before the correcting on the plug can be detected by the vacuum gauge
  • the measured change in vacuum at the suction couch roll will: time cause a change in the setting of the rhenstati Ii" to initiate the desired correcting adjustment of the refiner plug. but owing to the time lag; referred to, there might be a tendency to over correction or hunting. by the control circuits? I61 unless suitable anti-hunting provisions are made.
  • an additional timer IN is con.- nected between the control circuits ISI: and me; reversing switch mm the plug adjusting motor; and this timer is so arranged and connectedwith the timer I i-0 that when the timer" I IIl cormpletes its timed interval, it actuates the tiin'er I II tc'interrupt the circuit to the switch H1 for a predetermined time interval of suflicicrit durastion to permit the correcting movement at the plug toregiste'r atthe vacuum gauge. Ii at-ime end or this timed out interval, the vacuum. has still not returned to its desired value, the cycle. will again be repeated.
  • the watt sensitive'relay described in connedtion with Figs. 1 to 5, as pointed out, provides highly desirable results in the use of the invention for installations where variations in the voltage supply or power factor are likely to ocour and would affect the operation of the control system unless compensated for as described.
  • the control unit and circuits are also well adapted for use with a current sensitive control relay, as illustrated fragmcntarily in Fig. 6.
  • the relay lift in Fig. 6 may be substituted for the relay 8!] in Fig. 1, and it includes an armature I81 carrying a switch arm Hi2 movable with respect to upper and lower contacts 183 and NH which correspond to contacts 83 and B4 respectively in Fig. 1, the armature and switch arm being provided with a balancing spring I85.
  • the energizing coil for the relay I86 is connected by a current transformer I86 with one of the power lines for the refiner motor, shown as the line 53.
  • this circuit is provided for controlling the current through the coil of relay lt-ll in accordance with the desired input power to the refiner motor to be maintained for a given refining operation, and this circuit also includes an ammeter lel, which may be of either the indicating or recording type as desired.
  • ammeter lel which may be of either the indicating or recording type as desired.
  • Apparatus for adjusting the plug of a refiner comprising a housing, means for mounting said housing on said refiner, a screw journaled in said housing and including a threaded portion extending outwardly therefrom, means for operatively connecting said threaded portion of said screw to said plug to cause axia1 movement of said plug in response to rotation of said screw, 9. drive shaft for said screw in said housing, a handle for manually rotating said shaft, a motor drive for said shaft carried by said housing, and a clutch in said housing for releasably connecting said motor drive with said shaft to provide selectively for motor or manual operation of said s aft.
  • Apparatus for adjusting the plug of a refiner comprising a housing, means for mounting said housing on said refiner, a screw journaled in said housing and including a threaded portion extending outwardly therefrom, means for operatively connecting said threaded portion of said screw to said plug to cause axial movement of said plug in response to rotation of said screw, a drive shaft for rotating said screw journaled in said housing with the outer end thereof projecting through said housing, a handle on said outer end of said shaft for manually rotating said shaft, a motor drive secured to the opposite end of said housing from said handle and includin a clutch member adjacent the inner end of said shaft, a complementary clutch member slidable on said shaft for selective engagement and disengagement with said first named clutch member, and an operating handle for said slidable clutch member mounted exteriorly on said hous- 111 3.
  • Apparatus for adjusting the plug of a refiner comprising a housing, means for mounting said housing on said refiner, a screw journaled in said housing and including a threaded portion extending outwardly therefrom, means for operatively connecting said threaded portion of said screw to said plug to cause axial movement of said plug in response to rotation of said screw, a worm gear carried by said screw within said housing, a drive shaft journaled in said housing, a worm on said drive shaft meshing with said worm gear to rotate said screw upon rotation of said drive shaft, a handle for said drive shaft located exteriorly of said housing for manual rotation of said shaft, a motor drive for said shaft carried by said housing, and a clutch providing a selectively operable connection between said motor drive and said shaft.
  • Apparatus for adjusting the plug of a refiner having a drive motor for rotating said plug comprising a housing, means for mounting said housing on said refiner, a screw j ournaled in said housing and including a threaded portion extending outwardly therefrom, means for operatively connecting said threaded portion of said screw with said plug to cause axial movement of said plug in response to rotation of said screw, a drive shaft for rotating said screw journaled in said housing, a motor drive for said shaft carried by said housing, an electrical device connected with said refiner motor for sensing the load on said motor, means for adjusting said device in accordance with a predetermined desired load condition, and an electrical connection between said device and said motor drive for actuating said drive in response to a change in said load from said desired condition.
  • Apparatus for adjusting the plug of a refiner having a drive motor and including a shell provided with supply and discharge conduits for stock comprising a housing, means for mounting said housing on said refiner, a screw journaled in said housing and including a threaded portion extending outwardly therefrom, means for operatively connecting said threaded portion of said screw with said plug to cause axial movement of said plug in response to rotation of said screw, a drive shaft for rotating said screw journaled in said housing, a motor drive for said shaft carried by said housing, an electrical device connected with said refiner motor for sensin the load on said motor, means for adjusting said device in accordance with a predetermined desired load condition, an operative connection between said device and said motor drive for actuating said drive in response to a change in said load condition from said desired condition, a switch responsive to a predetermined stock pressure in one of said conduits, and a control operated by said switch for actuating said motor drive in the direction to withdraw said plug from said shell in response to a drop in said
  • Apparatus for adjusting the plug of a refiner having a drive motor for rotating said plug comprising a housing, means for mounting said housing on said refiner, a screw journaled in said housing and including a threaded portion ex-- tending outwardly therefrom, means for operatively connecting said threaded portion of said screw with said plug to cause axial movement of said plug in response to rotation of said screw, a drive shaft for rotating said screw journaled in said housing, a motor drive for said shaft carried by said housing, an electrical device connected with said refiner motor for sensing the load on said motor, means or adjusting said device in accordance with a predetermined load condition, an electrical connection between said device and said motor drive for actuatin drive in response to a change said lqeid condition from said desired condition, and a control responsive to stoppage of said drive motor tor actuating said motor drive in the direction to withdraw said plug from said shell.
  • Apparatus for adiusting the plug of a refiner having a drive motor and including a shell provided with supply and discharge condints for stock comprising a housing, means for mountin said housing on said refiner, a screw journaled in said housing and including a threaded portion extending outwardly therefrom, means for onerative ly connecting said threaded portion of said screw with said plug to cause axial movement of said plug in response to rotation of screw,
  • a drive shaft for rotating said screw iourngaled in said housing, a motor drive for said shaft carried by said housing, an electrical device connected with said refiner motor for senstng the load on said motor, means for adjust ng said device in accordance with a predetermined desired load condition, an operative connection between said device and said motor drive for actuating said drive in response to a change in said load from said desired condition, a switch responsive to a predetermined stock pressure in one of said conduits, a control operated by said switch for actuating said motor drive in the direction to withdraw said plug from said shell in response to a drop in said stock pressure below said predetermined pressure, and a second control responsive to stoppage of said drive motor for actual;- ing said motor drive in the direction to withdraw said plug from said shell.
  • a refining system including a refiner havin a drive motor for rotating a tapered plug in a shell provided with supply and discharge conduits Ior stock, the combination of motor operated means for effecting axial adjustment of said plug with respect to said shell, electrical means responsive to the load on said drive motor for actuating said adjusting means to maintain said lead a a ubs anti lly n a de mined value, a switch responsive to a predetermined stqckpresspre in one of said conduits, and a l ctric cont ol operated by d t h for actuating said adjusting means in the direction to withdraw said plug from said shell in response to a drop said stock pressure below said predetermined Pressure.
  • n a r n system ncludin a refine having a rotating tapered plug and a drive metor, the combination of motor operated means dor efiecting' axial adjustment of said plug, a reversi s t t on o in sa d motor rated ad J ine c ss a tch c n lm said starte and including a pair of contacts and an arm movable between said contacts and a neutral Po ition me rica me n onne i id c ntacts W 1 this e e s n tarte for e t relv ac uat n said ta te u on agement of said arm with one or the other said contact.
  • a reverss e ts controllin sa mo r operated adm tres means .a sw t h co ol ms sai s a t and a of contacts and an em mq flfi rli :b fig fiflii qflmagt and a neutral P stwar, electrical means connecting said con.- tcq s a d re ersin start r for selectively actuat ng said starter engagement of said asp; witl'i one or thepther said ,contact, a voltage coil lined with respect to said contacts and enl e :1 masse w t th v lta e supplied to said drive motor, an armature movable with res ec is s d va ass 9 1, o n ns a swi h e s weet 99 c r
  • a refining system including a refiner having a drive motor for rotating a tapered plug in a shell
  • the combination of motor operated means for effecting axial adjustment of said plug with respect to said shell means including a control relay responsive to the load on said drive motor for actuating said motor operated means to maintain said load at a substantially constant predetermined value
  • electrical means including a timing device for actuating said motor operated means for a predetermined time interval in the direction to withdraw said plug from said shell, and a selector switch for selectively connecting said load responsive means or said timing device means in operative relation with said motor operated means.
  • a refining system including a refiner having a drive motor for rotating a tapered plug in a shell
  • the combination of motor operated means for effecting axial adjustment of said plug with respect to said shell means including a control relay responsive to the load on said drive motor for actuating said motor operated means to maintain said load at a substantially constant predetermined value, means including switches under the control of the operator for actuating said motor operated means independently of said load responsive means, electrical means including a timing device for actuating said motor operated means for a predetermined time interval in the direction to withdraw said plug from said shell, and a selector switch for selectively connecting said load responsive means, said operator controlled means or said timing device means in operative relation with motor operated means.
  • a paper making system including a paper making machine for forming a web, a suction couch roll for removing water from the web, a headbox delivering stock to the forming wire, a refiner having a drive motor for rotating a tapered plug in a shell, and a conduit supplying the refined stock from the refiner to the hcadbox, the combination of motor operated means for eifecting axial adjustment of said plug with respect to said shell, an adjustable electrical control for preselecting desired load conditions on said drive motor to determine the refining action thereof in accordance with the desired characteristics of said web, electrical means responsive to the load on said drive motor for actuating said motor operated means to maintain said preselected load condition, a vacuum gauge including a member movable in response to the vacuum conditions at said couch roll, a drive for adjusting said adjustable control, and electrical means actuated by movement of said movable member for energizing said drive to cause said adjustable control to change said preselected load conditions in accordance with variations in the suction conditions at said couch roll
  • a paper making system including a paper making machine for forming a web, a suction couch roll for removing water from the web, a headbox delivering stock to the forming wire, a refiner having a drive motor for rotating a tapcred plug in a shell, and a conduit supplying the refined stock from the refiner to the headbox, the combination of motor operated means for effecting axial adjustment of said plug with respect to said shell, an adjustable electrical control for preselecting desired load conditions on said drive motor to determine the refining action thereof in accordance with the desired characteristics of said web, electrical means responsive to the load on said drive motor for actuating said motor operated means to maintain said preselected load condition, a vacuum gauge including a member movable in response to the vacuum conditions at said couch roll, a drive for adjusting said adjustable control, electrical means actuated by movement of said movable member for energizing said drive to cause said adjustable control to change said preselected load conditions in accordance with variations in the suction conditions at said couch roll, and a timing device connected
  • a paper making system including a paper making machine for forming a web, a suction couch roll for removing water from the web, a headbox delivering stock to the forming wire, a refiner having a drive motor for rotating a tapcred plu in a shell, and a conduit supplying the refined stock from the refiner to the headbox, the combination of motor operated means for effecting axial adjustment of said plug with respect to said shell, an adjustable electrical control for preselecting desired load conditions on said drive motor to determine the refining action thereof in accordance with the desired characteristios of said web, electrical means responsive to the load on said drive motor for actuating said motor operated means to maintain said preselected load condition.
  • a vacuum gauge including a member movable in response to the vacuum conditions at said couch roll, a drive for adjust ing said adjustable control, electrical means actuated by movement of said movable member for energizing said drive to cause said adjustable control to change said preselected load condiannexes 1151MB iinrancerdance .with vazriationszin the-"snctimi nnnditions 'atrsaid mounhxroll, :a fast timing device connected with said energizin means for limitiingithe :operation .of isaidrdrive'to arfirstpredeter- *mineii time internal, :and a second timing device :adtuated by said first timing device for prevent- ;iing operation of said motor operated means "for a second predetermined time interval following expiration of said ifirst time interval'providing for change in the stock characteristics caused by the resulting adjustmg movement of said plug to Register on said vacuum gauge.
  • a paper :making system including a pa- .per making-machine for forming a web, a suction couch roll for removing water from the web, a A:
  • a refiner having a drive motor for rotating a tapered .plug in a :sheil, and a conduit supplying the :refined stock from the refiner to the headbox
  • the combination of 'a housing means for mounting said housing on said refiner, a screw journaled in said housing and including a threaded portion extending outwardly therefrom, means operatively connecting said threaded screw portion with said plug to cause axial movement of said plug in response to rotation of said screw, a drive shaft for rotating said screw journaled in said housing, a motor drive for said shaft carriedby said housing,ran adjustable electrical control for preselecting desired load conditions on 16 said drive motor to determine the refining action thereof im'aocordance with the-desired characteristics of said web, electrical means responsive to the load "on said drive motor :for actuating :said motor drive to snaintam said :preselecterl load condition, a vacuum gage inciud

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US190184A 1950-10-14 1950-10-14 Paper machinery Expired - Lifetime US2666368A (en)

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Application Number Priority Date Filing Date Title
US190184A US2666368A (en) 1950-10-14 1950-10-14 Paper machinery
GB23127/51A GB694765A (en) 1950-10-14 1951-10-04 Improvements in or relating to apparatus for controlling a refiner
FR1051337D FR1051337A (fr) 1950-10-14 1951-10-10 Perfectionnements apportés aux dispositifs de réglage d'un raffineur de pâte à papier
DEB17161A DE969094C (de) 1950-10-14 1951-10-14 Anlage zum Steuern der Raffinierwirkung einer Kegelstoffmuehle od. dgl.

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US190184A US2666368A (en) 1950-10-14 1950-10-14 Paper machinery

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DE (1) DE969094C (fr)
FR (1) FR1051337A (fr)
GB (1) GB694765A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729147A (en) * 1953-01-26 1956-01-03 Bolton John W & Sons Inc Multiple synchronized pneumatic paper stock control device
US2837977A (en) * 1956-05-22 1958-06-10 Black Clawson Co Paper machinery
US2965168A (en) * 1957-06-04 1960-12-20 Beloit Iron Works Instrument control of freeness on the fourdrinier wire
WO1999019070A1 (fr) 1997-10-09 1999-04-22 Thermo Black Clawson Inc. Systeme de commande de raffineur de pate a papier et procede associe
US6617720B1 (en) 1998-04-08 2003-09-09 Kadant Black Clawson Inc. Integrated paper pulp and process machinery having integrated drive and control and methods of use thereof
US20030205634A1 (en) * 2000-03-07 2003-11-06 Egan John J Paper pulp refiner control system and method using active hydrostatic bearings
US20060231649A1 (en) * 2003-06-09 2006-10-19 Kadant Black Clawson Inc. Self-aligning and actively compensating refiner stator plate system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1007862B (de) * 1953-09-03 1957-05-09 Licentia Gmbh Belastungsabhaengige Regelung elektromotorischer Antriebe von Papiermuehlen

Citations (5)

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Publication number Priority date Publication date Assignee Title
US1686217A (en) * 1928-01-20 1928-10-02 Brown William Controlling device for pulp-refining engines
US1773832A (en) * 1928-07-30 1930-08-26 Melvin R Ware Automatic paper-making process and apparatus
US1815155A (en) * 1928-10-08 1931-07-21 Lewellen Darcy Edwin Control mechanism for machines
US1933814A (en) * 1930-06-27 1933-11-07 Darcy E Lewellen Stock consistency control
US2024424A (en) * 1932-09-15 1935-12-17 Tandy A Bryson Machine for processing material and method of controlling the operation thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1883051A (en) * 1930-05-31 1932-10-18 Riegel Paper Corp Control for motor-driven apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1686217A (en) * 1928-01-20 1928-10-02 Brown William Controlling device for pulp-refining engines
US1773832A (en) * 1928-07-30 1930-08-26 Melvin R Ware Automatic paper-making process and apparatus
US1815155A (en) * 1928-10-08 1931-07-21 Lewellen Darcy Edwin Control mechanism for machines
US1933814A (en) * 1930-06-27 1933-11-07 Darcy E Lewellen Stock consistency control
US2024424A (en) * 1932-09-15 1935-12-17 Tandy A Bryson Machine for processing material and method of controlling the operation thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2729147A (en) * 1953-01-26 1956-01-03 Bolton John W & Sons Inc Multiple synchronized pneumatic paper stock control device
US2837977A (en) * 1956-05-22 1958-06-10 Black Clawson Co Paper machinery
US2965168A (en) * 1957-06-04 1960-12-20 Beloit Iron Works Instrument control of freeness on the fourdrinier wire
WO1999019070A1 (fr) 1997-10-09 1999-04-22 Thermo Black Clawson Inc. Systeme de commande de raffineur de pate a papier et procede associe
US5947394A (en) * 1997-10-09 1999-09-07 Thermo Black Clawson Inc. Paper pulp refiner control system and method
US6617720B1 (en) 1998-04-08 2003-09-09 Kadant Black Clawson Inc. Integrated paper pulp and process machinery having integrated drive and control and methods of use thereof
US20030205634A1 (en) * 2000-03-07 2003-11-06 Egan John J Paper pulp refiner control system and method using active hydrostatic bearings
US6989074B2 (en) 2000-03-07 2006-01-24 Kadant Black Clawson Inc. Paper pulp refiner control system and method using active hydrostatic bearings
US20060231649A1 (en) * 2003-06-09 2006-10-19 Kadant Black Clawson Inc. Self-aligning and actively compensating refiner stator plate system
US7694902B2 (en) 2003-06-09 2010-04-13 Kadant Black Clawson Inc. Self-aligning and actively compensating refiner stator plate system

Also Published As

Publication number Publication date
DE969094C (de) 1958-04-30
FR1051337A (fr) 1954-01-14
GB694765A (en) 1953-07-29

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