US3850377A - Apparatus for readying wound bobbins - Google Patents

Apparatus for readying wound bobbins Download PDF

Info

Publication number
US3850377A
US3850377A US00382144A US38214473A US3850377A US 3850377 A US3850377 A US 3850377A US 00382144 A US00382144 A US 00382144A US 38214473 A US38214473 A US 38214473A US 3850377 A US3850377 A US 3850377A
Authority
US
United States
Prior art keywords
bobbin
bore
yarn
support means
reserve
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00382144A
Other languages
English (en)
Inventor
T Pitts
W Stoppard
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leesona Corp
Original Assignee
Leesona Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Leesona Corp filed Critical Leesona Corp
Priority to US00382144A priority Critical patent/US3850377A/en
Priority to BR6061/74A priority patent/BR7406061D0/pt
Priority to JP49084517A priority patent/JPS5048241A/ja
Priority to IT25523/74A priority patent/IT1017409B/it
Application granted granted Critical
Publication of US3850377A publication Critical patent/US3850377A/en
Assigned to JOHN BROWN INDUSTRIES LTD., A CORP. OF DE. reassignment JOHN BROWN INDUSTRIES LTD., A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: LEESONA CORPORATION; 333 STRAWBERRY FIELD RD., WARWICK, RI. A CORP. OF MA.
Assigned to LEESONA CORPORATION reassignment LEESONA CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE 3-31-81 STATE OF DELAWARE Assignors: JOHN BROWN INDUSTRIES LTD.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/02Arrangements for removing spent cores or receptacles and replacing by supply packages at paying-out stations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/31Textiles threads or artificial strands of filaments

Definitions

  • the apparatus includes support means mounting the wound bobbin for PP 3329144 delivery from a reserve position to an active unwinding position. Means are provided to create a zone of [52] CH 242/18 R, 242/18 Ew 242/355 A negative pressure through the bore of the bobbin 242/356 R 242/164: when the wound bibbin is disposed in its reserve posi- [51] lnt. Cl.
  • This Zone of negative pressure acts to induce the 58 Field of Search 242/18 R 18 EW 35.5 R Outer Yam of the Wound bobbin into the bore 242/35 5 A 6 R E when the yarn end is positioned proximate to the bore.
  • i l A perforated member is provided adjacent the lower 56] References Cited end of the bore. This member serves to control the extent to which the outer yarn end is drawn into the UNITED STATES PATENTS bore. This member also serves as a surface on which Pitts Ct 21] R the yarn may be formed into a bunch a bunch is desired and controls the amount of yarn drawn into the 3:563:478 2/1971 Bell........ across 3,603,518 9/l97l Cochran, Jr.
  • the present invention relates to bobbin handling mechanism and relates more particularly to apparatus for readying a wound bobbin for utilization by the bobbin handling mechanism.
  • yarn is employed in a general sense to relate to all kinds of strand material, either textile or otherwise;
  • the designation bobbin refers to a spool or carrier for receiving a supply of yarn; wound bobbin and supply bobbin are intended to mean the product of a winding or twisting machine,
  • the machine of this patent consists of awinding section, including a winding mandrel mounted for controlled movement between a winding position, a braking position, and a reverse rotation position, and a driving drum provided with a groove to transverse the yarn being wound on the mandrel; an end-finding, knot-tying section operable in the event of thread breakage and including a knot-tying device and separate means for finding the respective free ends of the broken yarn and conveying them to the knot-tier to be joined together; a preliminary yarn servicing section including means for detecting, tensioning and cleaning the yarn supplied to the mandrel; and an enclosed control section for superintending the various other sections and controlling the functioning thereof.
  • Such instances may be, for example; (l) where the particular requirements of a mill do not justify the provision of automatic supply bobbin readying apparatus; (2) where short runs of supply bobbins wound with a particular type of yarn are to be rewound on the automatic winding machine, such short runs not justifying setting up the normal automatic supply bobbin readying apparatus; (3) or where a redundant system is desired to back-up the automatic bobbin readying system and thereby maximize the productivity of the automatic winding machine.
  • the present invention uniquely provides means for permitting the manual loading of supply bobbins into the reserve positions of the supply bobbin supporting spider and for readying the outer unwinding end of each supply bobbin for ultimate uniting with the outer unwinding end of the supply package being wound on an automatic winding machine when thereserve supply bobbin is transferred into an active winding position.
  • the supply bobbin supporting spider is provided with a plurality of positions, the positions being sequentially indexed so that each, in turn, assumes the active unwinding position while the remainder of the positions are, in fact, unloading or reserve supply bobbin positions.
  • the spider is provided with a pluralityof bobbin holders, each of which acts to seat each supply bobbin in a vertical or upright position.
  • Each bobbin holder includes a centerless tube provided at its lower end with a flexible sealing member.
  • the upper end of each bobbin supporting member is provided with a screen or other perforate element through which air can pass and which is operable to preclude passage of yarn.
  • At least a portion of the path followed by each bobbin supporting member during the indexing of the spider is formed as a vacuum or suction chamber, the chamber having one or more ports or apertures therein which mate in sealing engagement with the sealing member at the bottom of each bobbin supporting member.
  • a further object of the present invention is to provide apparatus for readying a wound bobbin having a bore axially therethrough by drawing the outer unwinding end of yarn from the wound bobbin into the bore under the influence of negative pressure and providing means for restricting the amount of yarn drawn into the bore.
  • Still another object of the present invention is to provide new and improved apparatus for readying a wound bobbin which is simple in construction, and yet durable and reliable in use.
  • FIG. 1 is a front elevational view of one winding station of an automatic winding machine such as that disclosed in the cited Goodhue et al. patent equipped the automatic supply package indexing mechanism as discussed hereinbefore, and incorporating the present invention;
  • FIG. 2 is a view taken along lines ll II of FIG. 1;
  • FIG. 3 is a view taken along lines III III of FIG. 1.
  • the automatic winding machine includes a yarn servicing section which includes a housing generally indicated by the numeral 12 which is capped by a top plate 14.
  • a running length of yarn Y extending between a supply bobbin S in the active unwinding position and the package being wound (not shown) on the automatic winding machine 10 passes through and is acted upon by various yarn tensioning and servicing mechanisms (not herein illustrated) supported on or operable with respect to the top plate 14 of yarn servicing section 12'. Since none of these elements is germane to an understanding of the present invention such parts have not been shown herein. Additionally, the. motive means for the parts of the yarn servicing section just referred to may be incorporated within the yarn servicing section housing 12 and again, here, since these parts are not relevant to an understanding of the present invention, these parts are omitted.
  • the supply package indexing mechanism is situated below housing 12 and includes a multi-arm creel or spider 16 which is secured fast on a shaft 18.
  • shaft 18 is journaled for rotation in suitable bearings.
  • a first bearing (not shown) is affixed in the lower side of yarn servicing section housing 12 to support the upper end of shaft 18 and a further flanged bearing 20 is affixed on the upper surface of housing 22 of the winding machine to support the lower portion of shaft 18.
  • the lower end of shaft 18 has a beveled gear 24 affixed fast thereon which mates with a beveled pinion 26 secured on a horizontal drive shaft 28.
  • drive shaft 28 which extends the full length of the automatic winding machine and is provided with a plurality of like pinions 26 for driving all of the spiders along one side of the machine, is connected to a suitable source of power (not shown).
  • a suitable source of power not shown.
  • shaft 18, and consequently spider 16 are periodically rotated through a limited are via the motive force from drive shaft 28, pinion 26 and gear 24 to transfer a supply bobbin S from a reserve winding position to an active unwinding position and to transfer a spent bobbin-B from an active unwinding position to a position where the spent bobbin is ejected from the spider 16.
  • the supply bobbin indexing mechanism is seen to include four elongated tubes 34, 36, 38 and 40 which are supported in collars 42, 44, 46 and 48 respectively.
  • each of the collars is rockably mounted on an individual arm 49, all of the arms merging into a common hub 50 which is tightly connected to shaft 18. Since each of the tubes is rockable it may be tilted by means not shown herein but which is fully set forth in commonly assigned US. Pat. No. 3,048,349 to Pitts et al. entitled Ejector for Supply Package Indexing Mechanism to effect removal of a spent bobbin therefrom.
  • the yarn supply creel or spider 16 is provided with four supply bobbin supporting members 60, 62, 64 and 66 all of which are identical in construction. As best seen in FIG. 2 each supply supporting member is carried at the outer end of a respective branch 68, 70, 72 and 74 of the spider 16. Consequently as shaft 18 is indexed each of the supply supporting members is shifted through an arc coincident with the movement of the shaft 18.
  • each supporting member includes a rigid, threaded hollow stem 80 which is engaged in a tapped hole in the outer end of its respective branch, for example, stem 80 of yarn package supporting member 60 is secured in branch 74 as seen in FIG. 3.
  • a check nut 81 threaded onto stem 80 and drawn against branch 68 acts to secure the stem in position.
  • An upper section 82 of the supply supporting member extends upwardly above its supporting branch and a lower portion 84 depends below the branch.
  • the upper terminus of stem 80 has a saucer-like concave element 86 affixed thereto.
  • Element 86 is centerless and is counterbored to receive and securely seat a magnetic ring 88 centrally therein.
  • the diameter of magnetic ring 88 is of sufficient size to mate with a conductive metallic ferrule 90 affixed to the base of bobbin 8. Consequently, as the bobbin is dropped onto element 86 the metal ferrule is seated and held by a magnetic force on ring 88.
  • the configuration of element 86 is such as to induce alignment the bobbin with the ring.
  • Ring 88 is centerless so that an air passage is provided through stem 80 from its lower extreme upwardly through the center of the ring 88 and into the bore 91 of a bobbin B seated on element 86.
  • element 86 is counterbored to receive ring 88.
  • a screen or other perforate disc 94 acts as a catcher on which yarn collects and, consistent therewith, the perforations in this screen or plate should be smaller than the yarn diameter.
  • each stem 80 is provided with an elastomeric suction cup 95 which is threaded onto the lower end of the stem and which, in fact, depends somewhat below the lower end of said stem.
  • spider 16 may be considered to have four stopping positions as it is indexed through a full circle.
  • Pos. No. 1 represents the active unwinding position of a yarn supply bobbin, i.e., the locus on the circle of movement of the spider where the supply bobbin which is being unwound is situated. in this active unwinding position strand of yarn Y is unwound from the supply bobbin S and is delivered through the various servicing mechanisms of the automatic winding machine to be taken up on a yarn take-up package (not herein illustrated) at the upper end of the machine.
  • Pos. No. 1 may be deemed to be the position toward which the denuded supply bobbin from the active unwinding position, i.e., Pos. No. 1 is indexed to after the yarn on the bobbin at Pos. No. 1 is exhausted or after suchother circumstances occur which may make it desirable to present a fresh supply bobbin to Pos. No. l. in practice the denuded or rejected bobbinfrom Pos. No. 1 is normally transferred to a stand-by locus at Pos. No. 2, then doffed or kicked off spider 16 during the movement of the bobbin toward Pos. No. 3 from Pos. No. 2.
  • Pos. Nos. 3 and 4 may be deemed to be a loci at which fresh yarn supply bobbins may be mounted on the spider.
  • channel 102 is configured to lay in the path of travel of each bobbin supporting member -66 as each member is positioned in thelocus identified by Pos. Nos. 3 and 4.
  • Channel 102 includes an integrally formed flared portion or leg 106 which also securely overlays the upper surface of housing 22 and which connects with an upstanding connector pipe 108.
  • pipe 108 is connected by means of a flexible hose 110 into a suction duct 112, this later suction duct being a normal part of the automatic winding mechanism and being connected to means to provide a suction or negative pressure therein.
  • Two outlet ports 114 and 116 are formed within the upper face of channel 102, these ports being aligned respectively with Pos. Nos. 3 and 4.
  • the vertical adjustment of stem of each member 60-66 is such as to insure that the stem clears the upper surface 122 of channel 102, but that cup mates tightly on said surface 122.
  • this cup 95 provides a substantially air tight seal between ports 114 and 116 and the tube 80 of each supply bobbin holder aligned with these. Consequently, the negative pressure induced from duct 112 is transmitted via hose and pipe 108 into chamber 104, and therethrough into stem 80 and upward through the screen 94 to the bore 91 of bobbin B.
  • valve 126 may be accomplished as a function of the indexing of spider 16.
  • the present invention could operate to provide a readied bobbin with only the outer unwinding end loosely within the bore of the bobbin rather than its being bunched as, for example, where the end was constrained by some means from freely flowing into the bore to a sufficient degree to create a bunch.
  • Apparatus for readying a bobbin wound with a supply of yarn thereon and having a bore axially therethrough comprising, carrier means for supporting said bobbin in a reserve position and an active unwinding position, means operable to provide a zone of negative pressure through the bore of said bobbin when said bobbin is in said reserve position, said zone of negative pressure acting to induce the outer unwinding end of the yarn on the bobbin into the bore, and means for actuating said carrier means to move said bobbin from said reserve position to said active unwinding position after the yarn end has been deposited in said bore.
  • said carrier means includes support means for said bobbin, said support means having a bore therethrough, the bore through said support means being in alignment with the bore through said bobbin supported thereon when in said reserve position, said support means when in said reserve position having its bore connected with said negative pressure zone.
  • actuating means is operable to move said carrier means in a predetermined path to dispose said bobbin sequentially in said reserve position and active unwinding position.
  • Apparatus as set forth in claim 1 including controlling means for confining the movement of the yarn into said bore to a predetermined zone therein.
  • controlling means including a perforate element having apertures therein smaller in size than the diameter of the yarn wound on said bobbin.
  • Apparatus as set forth in claim 6 including a suction cup affixed at one end of said support means for sealing engagement around said port.
  • said bobbin has a base provided with a ferrule of conductive material, and said support means includes a magnetic portion engageable with said ferrule.

Landscapes

  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
US00382144A 1973-07-24 1973-07-24 Apparatus for readying wound bobbins Expired - Lifetime US3850377A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US00382144A US3850377A (en) 1973-07-24 1973-07-24 Apparatus for readying wound bobbins
BR6061/74A BR7406061D0 (pt) 1973-07-24 1974-07-23 Aparelho para aprontar uma bobina enrolada com uma alimentacao de fio na mesma e tendo um furo axialmente atraves da mesma
JP49084517A JPS5048241A (it) 1973-07-24 1974-07-23
IT25523/74A IT1017409B (it) 1973-07-24 1974-07-24 Dispositivo per l approntamento di bobine avvolte

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00382144A US3850377A (en) 1973-07-24 1973-07-24 Apparatus for readying wound bobbins

Publications (1)

Publication Number Publication Date
US3850377A true US3850377A (en) 1974-11-26

Family

ID=23507700

Family Applications (1)

Application Number Title Priority Date Filing Date
US00382144A Expired - Lifetime US3850377A (en) 1973-07-24 1973-07-24 Apparatus for readying wound bobbins

Country Status (4)

Country Link
US (1) US3850377A (it)
JP (1) JPS5048241A (it)
BR (1) BR7406061D0 (it)
IT (1) IT1017409B (it)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3337343A1 (de) 1982-10-13 1984-04-26 Murata Kikai K.K., Kyoto Spulenzufuehrvorrichtung fuer eine automatische wickelmaschine
US4463909A (en) * 1981-04-10 1984-08-07 Murata Kikai Kabushiki Kaisha Cop supplying system in automatic winder
US4544107A (en) * 1981-09-25 1985-10-01 Murata Kikai Kabushiki Kaisha Cop delivery system
US4579615A (en) * 1983-07-23 1986-04-01 Janome Sewing Machine Co. Ltd. Method and a device for connecting threads of a sewing machine
US4615495A (en) * 1985-06-28 1986-10-07 Dixie Yarns, Inc. Cylindrical package of low modulus, highly elastic yarn
US4619416A (en) * 1983-07-19 1986-10-28 Murata Kikai Kabushiki Kaisha Yarn end finding apparatus
US4630782A (en) * 1975-02-19 1986-12-23 W. Schlafhorst & Co. Method and apparatus for forming a thread reserve from the thread end of a textile coil
US4634065A (en) * 1984-12-08 1987-01-06 Kuepper Wilhelm Device for inserting the thread end of a textile bobbin into a bobbin sleeve
US4688734A (en) * 1985-06-28 1987-08-25 Dixie Yarns, Inc. Apparatus and method for tensionless winding of low modulus elastic yarns into a cylindrical package for uniform dyeing
US4722487A (en) * 1985-08-31 1988-02-02 C. Eugen Maier Metallverarbeitung Gmbh Device for transferring the end of the thread of a bobbin or cop from the bobbin core to a spooling frame
EP2107028A3 (de) * 2008-04-04 2009-11-25 Oerlikon Textile GmbH & Co. KG Vorbereitungseinrichtung für Spinnkopse

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081045A (en) * 1960-05-19 1963-03-12 Leesona Corp Automatic supply package indexing mechanism for winding machines
US3279712A (en) * 1963-12-21 1966-10-18 Reiners Walter Method and apparatus for supplying yarn coils to a multi-station yarnpackage winding machine
US3295775A (en) * 1963-04-05 1967-01-03 Reiners Walter Method and apparatus for readying the winding operation of yarn supply coils on coil winding machines
US3563478A (en) * 1969-01-02 1971-02-16 Leesona Corp Bobbin processing
US3603518A (en) * 1969-06-23 1971-09-07 Frontier Electronics Inc Monitoring apparatus for a textile winding machine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3081045A (en) * 1960-05-19 1963-03-12 Leesona Corp Automatic supply package indexing mechanism for winding machines
US3295775A (en) * 1963-04-05 1967-01-03 Reiners Walter Method and apparatus for readying the winding operation of yarn supply coils on coil winding machines
US3279712A (en) * 1963-12-21 1966-10-18 Reiners Walter Method and apparatus for supplying yarn coils to a multi-station yarnpackage winding machine
US3563478A (en) * 1969-01-02 1971-02-16 Leesona Corp Bobbin processing
US3603518A (en) * 1969-06-23 1971-09-07 Frontier Electronics Inc Monitoring apparatus for a textile winding machine

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630782A (en) * 1975-02-19 1986-12-23 W. Schlafhorst & Co. Method and apparatus for forming a thread reserve from the thread end of a textile coil
US4463909A (en) * 1981-04-10 1984-08-07 Murata Kikai Kabushiki Kaisha Cop supplying system in automatic winder
US4595152A (en) * 1981-09-25 1986-06-17 Murata Kikai Kabushiki Kaisha Cop delivery system
US4544107A (en) * 1981-09-25 1985-10-01 Murata Kikai Kabushiki Kaisha Cop delivery system
DE3348035A1 (it) * 1982-10-13 1986-03-20
US4597540A (en) * 1982-10-13 1986-07-01 Murata Kikai Kabushiki Kaisha Bobbin supplying device in automatic winder
DE3337343A1 (de) 1982-10-13 1984-04-26 Murata Kikai K.K., Kyoto Spulenzufuehrvorrichtung fuer eine automatische wickelmaschine
US4619416A (en) * 1983-07-19 1986-10-28 Murata Kikai Kabushiki Kaisha Yarn end finding apparatus
US4579615A (en) * 1983-07-23 1986-04-01 Janome Sewing Machine Co. Ltd. Method and a device for connecting threads of a sewing machine
US4634065A (en) * 1984-12-08 1987-01-06 Kuepper Wilhelm Device for inserting the thread end of a textile bobbin into a bobbin sleeve
US4615495A (en) * 1985-06-28 1986-10-07 Dixie Yarns, Inc. Cylindrical package of low modulus, highly elastic yarn
US4688734A (en) * 1985-06-28 1987-08-25 Dixie Yarns, Inc. Apparatus and method for tensionless winding of low modulus elastic yarns into a cylindrical package for uniform dyeing
US4722487A (en) * 1985-08-31 1988-02-02 C. Eugen Maier Metallverarbeitung Gmbh Device for transferring the end of the thread of a bobbin or cop from the bobbin core to a spooling frame
EP2107028A3 (de) * 2008-04-04 2009-11-25 Oerlikon Textile GmbH & Co. KG Vorbereitungseinrichtung für Spinnkopse
CN101549810B (zh) * 2008-04-04 2012-04-25 欧瑞康纺织有限及两合公司 纺纱管纱的准备装置

Also Published As

Publication number Publication date
IT1017409B (it) 1977-07-20
BR7406061D0 (pt) 1975-05-13
JPS5048241A (it) 1975-04-30

Similar Documents

Publication Publication Date Title
US4595152A (en) Cop delivery system
US3850377A (en) Apparatus for readying wound bobbins
US4781334A (en) Method and apparatus for increasing the winding speed of an automatic winding machine
US4601434A (en) Package transporting apparatus
US4281508A (en) Yarn brake mechanism
JP2710822B2 (ja) 合糸ワインダー
US5109662A (en) Operating method and apparatus for the automated removal of yarn remnants from winding tubes by an automated maintenance and servicing device traveling along a textile yarn processing machine
CN217024865U (zh) 用于卷绕机的线轴更换装置以及精整机
JP2014076904A (ja) リング精紡機において製造された紡績コップを、後続の巻返し過程のために準備する方法
US4541578A (en) Doffing apparatus in automatic winder
EP0650914A1 (en) Filament winding method and filament winding machine
US4928475A (en) Fixed length winding method in a two-for-one twister
JPH02145833A (ja) 織機用糸通し装置
US4597540A (en) Bobbin supplying device in automatic winder
JPH0364534A (ja) 繊維機械の糸処理位置の区域において空チューブを装着した糸パッケージアダプタを、満管糸パッケージアダプタを装着した糸パッケージアダプタに自動的に交換する方法と装置
US3295776A (en) Method and means for readying supply bobbins
US4953798A (en) Winding unit
US3420467A (en) Bobbin
US5085378A (en) System for preparing roving bobbins
US5207052A (en) Method of transporting and positioning a set of yarn packages in a spindle assembly of a twister yarn processing machine and an adapter device for use therein
US5526634A (en) Robot device for piled-package type double twister
US4339912A (en) Device for gripping yarn supports on revolving-spindle textile machines
US3550876A (en) Creel
JP4308355B2 (ja) 遠心紡績/巻取機
CA2148325A1 (en) Method and device for winding continuous threads or yarns

Legal Events

Date Code Title Description
AS Assignment

Owner name: JOHN BROWN INDUSTRIES LTD.; 100 WEST TENTH ST., WI

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:LEESONA CORPORATION; 333 STRAWBERRY FIELD RD., WARWICK, RI. A CORP. OF MA.;REEL/FRAME:003936/0206

Effective date: 19810501

AS Assignment

Owner name: LEESONA CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:JOHN BROWN INDUSTRIES LTD.;REEL/FRAME:003936/0238

Effective date: 19810331