US3460513A - Dispenser for coating a moving sheet - Google Patents

Dispenser for coating a moving sheet Download PDF

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Publication number
US3460513A
US3460513A US579474A US3460513DA US3460513A US 3460513 A US3460513 A US 3460513A US 579474 A US579474 A US 579474A US 3460513D A US3460513D A US 3460513DA US 3460513 A US3460513 A US 3460513A
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United States
Prior art keywords
dispenser
sheet
applicator
roller
outlet
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
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US579474A
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English (en)
Inventor
Wilhelm Hesselmann
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Individual
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Individual
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0225—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work characterised by flow controlling means, e.g. valves, located proximate the outlet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
    • B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
    • B05C5/0254—Coating heads with slot-shaped outlet
    • B05C5/0258—Coating heads with slot-shaped outlet flow controlled, e.g. by a valve

Definitions

  • Our present invention relates to a dispenser for depositing viscous fluids, e.g. glue and other liquid. adhesives, onto a strip of paper or other sheet material moving continuously or intermittentlymver a bearing surface.
  • viscous fluids e.g. glue and other liquid. adhesives
  • a dispenser of the general type here considered, e.g. as described in copending application Ser. No. 319,346 filed Oct. 28, 1963 by Willy Hesselman, now Patent No. 3,319,603, has a hollow body provided with a bottom aperture through which the adhesive or other fluid can be discharged.
  • the aperture can be selectively opened and closed by a suitable shutter, preferably by relative rotation between the hollow body and a surrounding flexible and tensioned metal foil, also having a discharge opening, in which this body is cradled.
  • the hollow body and its enveloping metal foil constitute an applicator which, in past instances, has been mounted on a fixed support above the bearing surface for the moving sheet material in order that the aligned discharge openings of the body and the foil should lie at a constant elevation above the bearing surface to insure uniform distribution of the out-flowing fluid.
  • a more particular object of this invention is to provide means for enabling manual adjustment of the spacing which is to be automatically maintained.
  • a dispenser of the general character set forth above whose support, however, 'permits at least a limited vertical motion of the applicator body above the bearing surface for the work sheet.
  • This applicator body has secured to it a levelcontrol device which includes an element projecting downwardly beyond the discharge aperture for engagement with the work sheet at a point lying substantially on a line with the dispenser outlet transverse: to the direction of sheet motion.
  • the sheet-contacting element of the level-control device is a roller rotatably journaled on the applicator body.
  • Various means more fully described hereinafter may be employed for manually raising or lowering the roller axis with reference to the dispenser outlet in order to adjust the distance between this outlet and the sheet.
  • One sucharrangement includes the provision of a roller-supporting shaft eccentrically connected with a member which can be manually rotated about a generally horizontal axis and locked in a selected angular position during use of the dispenser.
  • this member may be a tubular boss of a rotatable knob, inserted between the roller and its shaft which traverses an eccentric bore of the boss, or a rotatable holder to which the roller shaft is eccentrically attached in the manner of a crank.
  • different rollers of staggered diameters may be interchangeably provided for selective mounting on the applicator body.
  • the roller, or other sheet contacting element may be duplicated on opposite sides of the applicator body or may be mounted on only one side thereof it the position of the dispenser is sufiiciently stabilized bythe nature of its support.
  • FIG. 1 is a front-elevational view of a dispenser em- !bodying the invention
  • FIG. 2 is a side-elevational view of the dispenser of FIG. 1, taken partly in section on the line IIII thereof;
  • FIG. 3 is a detail view, also partly in section, on the line III-III of FIG. 1; p
  • FIG. 4 is a cross-sectional view taken on the line IVIV of FIG. 3;
  • FIGS. 5 and 6 are views similar to FIG. 1 (partly broken away), showing modifications of the dispenser illustrated in FIGS. 14. Y
  • the dispenser shown in FIGS. 1 and 2 comprises an applicator 1 with a hollow body 2, of cylindrical configuration, supported between sidewalls 21, 22 of ayoke 20 with. freedom of at least limited rotatability about a horizontal axis.
  • Body 2 is cradled in a metallic foil 12, supported under tension onthe yoke 20, and is provided with a bottom aperture 8 which registers with a hole 23 in foil 12 when the dispenser is in use.
  • a tubular stem 5, supporting the cylindrical body 2 to define therewith an annular fluid chamber, is connected at one end with a flexible supply conduit 3 through which liquid adhesive or other working fluid is delivered to the interior of body 2 via peripheral openings 4 in stem 5.
  • the outlet 8, 23 can be closed by relative rotation of cylinder 2 and foil 12 to disalign their respective discharge apertures, e.g. via a knob 15 connected through a linkage 14 with a cylinder 2, to rotate it by a small angle about its axis as indicated by the arrow 13 in FIG. 2.
  • the yoke 20 is integral with a supporting arm 9 on which it is cantilevered for free swinging in a vertical plane, the other end of arm 9 being journaled on a shaft 24 which is carried by a stationary post 29.
  • a sheet 11, e.g. of paper, is to be continuously coated over a portion of its width with fluid issuing from outlet 8, 23, this-sheet moving in the' 'direction of arrow 25 (FIG. 2) over a bearing surface 10 which could be a separate cylinder but which has been shown, by way of example, as another turn of the same sheet material coiled in a roll around a rotatable supporting core 26.
  • the diameter of the roll progressively decreases so that the distance 16 between outlet opening 23 and sheet 11 would increase if means were not provided to maintain this distance constant by a compensatory lowering of the applicator.
  • the closed end of stem 5 opposite feed conduit 3 carries a horizontal shaft 17 eccentrically surrounded by a boss 6 of a manually rotatable knob 18.
  • a roller 7, of a diameter slightly exceeding that of the cylindrical body 2 is journaled on boss 6 and rests with its nadir on the upper surface of sheet 11.
  • the applicator 1 Since the point of contact of roller 7 with sheet 11 "is in line with the outlet 8, 23, as viewed in a direction perpendicular to the sheet motion 25, the applicator 1 will move vertically under its own weight to maintain a constant separation 16 between its outlet and the sheet surface. Naturally, the supporting arm 9 should be long enough to insure a nearly linear motion of the applicator within the range contemplated.
  • FIG. 5 we have illustrated a modified arrangement wherein a roller 7 is journalled on a shaft 17 forming a crank-like extension of the tubular supporting stem 5'.
  • a setscrew 19' serves to immobilize the rod 5, 7' in a selected angular position.
  • Conduit 3 should, of course, be sufficiently flexible to permit such limited rotation of stem 5' or should be connected thereto by a fluidtight coupling allowing for relative rotation.
  • FIG. 6 finally, we show the applicator 1 resting on a pair of rollers 7" which are journaled on opposite ends of stem 5" and are fitted with inflatable tires 27 having nipples 28. A change in air pressure within the tires 27 willserve, within limits, to vary the effective radius of these rollers.
  • rollers 7 and 7' of the other embodiments could also be duplicated on opposite sides of the applicator. It will also be understood that in FIG. 5, where the tubular stem 5 is rotatable for purposes of clearance adjustment, this stem must be free to rotate with reference to the applicator body 2 whereas in the What is claimed is:
  • a dispenser for depositing fluids on a sheet movable over a bearing surface comprising:
  • an applicator with a hollow body having a bottom aperture, said body being provided with a perforated feed tube passing substantially horizontally therethrough, said tube having a closed end formed as an extension projecting laterally from said body; supply means including said tube for delivering a fluid to said body for discharge through said aperture; shutter means for selectively opening and closing said aperture;
  • support means holding said applicator above said bearing surface with at least limited vertical mobility relative thereto;
  • a dispenser as defined in claim 3 wherein said member comprises a rotatable knob with a tubular boss axially traversing said roller, said boss having an eccentric bore traversed by said extension.
  • a dispenser as defined in claim 1 wherein said shutter means comprises a foil Spanning the underside of said body and having an outlet opening alignable with said aperture, and means for relatively displacing said body and said foil.

Landscapes

  • Coating Apparatus (AREA)
  • Replacement Of Web Rolls (AREA)
US579474A 1965-08-24 1966-08-23 Dispenser for coating a moving sheet Expired - Lifetime US3460513A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP0037529 1965-08-24

Publications (1)

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US3460513A true US3460513A (en) 1969-08-12

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ID=7375343

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Application Number Title Priority Date Filing Date
US579474A Expired - Lifetime US3460513A (en) 1965-08-24 1966-08-23 Dispenser for coating a moving sheet

Country Status (5)

Country Link
US (1) US3460513A (enrdf_load_stackoverflow)
CH (1) CH437998A (enrdf_load_stackoverflow)
DE (1) DE1577888A1 (enrdf_load_stackoverflow)
GB (1) GB1165011A (enrdf_load_stackoverflow)
SE (1) SE312755B (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804061A (en) * 1972-05-02 1974-04-16 L Cassar Paper dispenser
US5122219A (en) * 1989-02-22 1992-06-16 Volker Ludwig Apparatus for applying fluid, pasty or plastic substances to a substrate
US5762710A (en) * 1994-05-04 1998-06-09 Polymer Group, Inc. Apparatus for providing instant impregnated wipes
US7018473B2 (en) 2003-04-10 2006-03-28 Shadrach Iii William S Towel dispensing and treatment system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126924B (en) * 1982-09-13 1987-08-19 Dexter Chemical Corp Foam finishing fabrics
DE4124064C2 (de) * 1991-07-19 1996-04-25 Zweckform Buero Prod Gmbh Verfahren und Vorrichtung zum Aufbringen von Klebstoffpunkten sowie haftklebendes Substrat

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1727524A (en) * 1925-08-22 1929-09-10 Spencer Turbine Co Cleaning implement
US1851538A (en) * 1924-04-03 1932-03-29 Weinheim Emil Forced feed tubular dope bar
US2796847A (en) * 1955-06-17 1957-06-25 Nat Equip Corp Valves for glue applicators for carton sealing machines
DE1163650B (de) * 1963-01-19 1964-02-20 Brodbeck Adolf Beleimungsvorrichtung für Hülsenwickelmaschinen.
US3168021A (en) * 1961-05-01 1965-02-02 Rca Corp Electrostatic printing
US3256854A (en) * 1962-04-11 1966-06-21 United States Steel Corp Strip oiling apparatus

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1851538A (en) * 1924-04-03 1932-03-29 Weinheim Emil Forced feed tubular dope bar
US1727524A (en) * 1925-08-22 1929-09-10 Spencer Turbine Co Cleaning implement
US2796847A (en) * 1955-06-17 1957-06-25 Nat Equip Corp Valves for glue applicators for carton sealing machines
US3168021A (en) * 1961-05-01 1965-02-02 Rca Corp Electrostatic printing
US3256854A (en) * 1962-04-11 1966-06-21 United States Steel Corp Strip oiling apparatus
DE1163650B (de) * 1963-01-19 1964-02-20 Brodbeck Adolf Beleimungsvorrichtung für Hülsenwickelmaschinen.

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3804061A (en) * 1972-05-02 1974-04-16 L Cassar Paper dispenser
US5122219A (en) * 1989-02-22 1992-06-16 Volker Ludwig Apparatus for applying fluid, pasty or plastic substances to a substrate
US5762710A (en) * 1994-05-04 1998-06-09 Polymer Group, Inc. Apparatus for providing instant impregnated wipes
US7018473B2 (en) 2003-04-10 2006-03-28 Shadrach Iii William S Towel dispensing and treatment system
US20060151513A1 (en) * 2003-04-10 2006-07-13 Shadrach William S Iii Towel dispensing and treatment system
US7318949B2 (en) 2003-04-10 2008-01-15 Shadrach Iii William Towel dispensing and treatment system

Also Published As

Publication number Publication date
SE312755B (enrdf_load_stackoverflow) 1969-07-21
DE1577888A1 (de) 1969-07-31
GB1165011A (en) 1969-09-24
CH437998A (de) 1967-06-15

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