US3344774A - Web support - Google Patents

Web support Download PDF

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Publication number
US3344774A
US3344774A US561577A US56157766A US3344774A US 3344774 A US3344774 A US 3344774A US 561577 A US561577 A US 561577A US 56157766 A US56157766 A US 56157766A US 3344774 A US3344774 A US 3344774A
Authority
US
United States
Prior art keywords
web
support
sheet
coating
web support
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
US561577A
Other languages
English (en)
Inventor
Swindells Geoffrey
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of US3344774A publication Critical patent/US3344774A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H5/00—Special paper or cardboard not otherwise provided for
    • D21H5/0005—Processes or apparatus specially adapted for applying liquids or other fluent materials to finished paper or board, e.g. impregnating, coating
    • 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
    • B05C13/00—Means for manipulating or holding work, e.g. for separate articles
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B5/00—Forcing liquids, gases or vapours through textile materials to effect treatment, e.g. washing, dyeing, bleaching, sizing impregnating
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H23/00—Processes or apparatus for adding material to the pulp or to the paper
    • D21H23/02—Processes or apparatus for adding material to the pulp or to the paper characterised by the manner in which substances are added
    • D21H23/22—Addition to the formed paper
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B2700/00—Treating of textile materials, e.g. bleaching, dyeing, mercerising, impregnating, washing; Fulling of fabrics
    • D06B2700/18—Passing liquid through fibrous materials in closed containers with a form not determined by the nature of the fibrous material

Definitions

  • webs for example fabrics
  • an applicator device such as a doctor knife or rotating roller
  • the web is provided with a support as it passes under the applicator device.
  • the web support consists of a natural or synthetic continuous rubber band having a greater transverse dimension than the web and which is conveniently rotated in such a direction as to aid the motion of the web.
  • the web support provides a generally flat resilient support against which the underside of the web is maintained in abutment during the coating process.
  • a web support for use in the application of coating compositions to webs comprises a stationary sheet member, constructed from a material which is resistant to attack by the coating composition used, over the surface of which passes the web to be coated, said sheet member being supported by means which provide resilience normal to the plane of the web.
  • the sheet member is suitable for the sheet member to be non-flexible it is preferred that it is flexible.
  • our sheet member is made from sheet steel in which case a suitable thickness for the member can be selected in the range 0.005 inch to 0.025 inch. Alternatively any other suitable material may be used, for example, wood or plastic.
  • the sheet member is substantially flat over at least that part of its surface immediately beneath the applicator.
  • the resilient support means serves to allow vertical movement of the sheet member when the latter is subjected to vertical forces which are applied during a coating operation, especially when faulty or uneven webs are being coated. It will be realised that the vertical forces applied during the coating operation will vary a great deal from one web material to another and in view of this the resilient support means for use in our invention is chosen with the particular web material to be used in mind.
  • a suitable resilient support means comprises one or more layers of a polyurethane or other similar foam or sponge material.
  • the resilient support means may be in the form of one or more compression springs which are mounted on the underside of the sheet member.
  • our web support can itself be supported in any suitable manner it may be conveniently supported by a channel section member comprising a rectangular sheet base member having two low side walls along opposite edges of the sheet, the upper part of each wall being turned inwardly substantially at right angles to the wall.
  • Our web support is disposed in the channel member between the side walls in such a manner that each of the inturned parts overlaps a margin of the support surface, these margins conveniently being maintained in abutment with the underside of the inturned parts prior to a coating operation by virtue of slight compression of the resilient support means.
  • the side walls will conveniently be either parallel or at right angles to the line of motion of the web.
  • the channel member may be provided with two more side walls each of which may be provided with inturned parts along the remaining two opposed edges of the base memher.
  • the web is passed continuously between the support and the applicator device, such as a doctor knife, which retains a bank of the coating composition on the web and applies a depth of coating on the web approximately equal to the clearance maintained between the web and the applicator.
  • the applicator device such as a doctor knife
  • the resilient support means permits temporary displacement of the web support necessitated by fluctuations in fabric thickness and transit speed.
  • Our web support may equally well be used with any of the usual web materials for example fabric, paper, sheet metal, metal or glass fibre mesh, supported or unsupported plastic sheet material. It is further readily suited, at least in one of its embodiments, to any of the usual coating compositions used.
  • FIGURE 1 shows a side elevation view of one web support mounted in a suitable housing
  • FIGURE 2 shows a plan view of the web support and housing shown in FIGURE 1;
  • FIGURE 3 shows a section along line AA of FIG- URE 1.
  • the web support consists of a flat sheet member 1, one surface of which is in contact with the upper of two superimposed layers of a foam material denoted, respectively, by numerals 2 and 3.
  • the web support is housed in a channel section member comprising a base member 4 and side walls 5 extending along opposite edges of the base member. The upper parts of the walls are inturned as at 6 to overlap and be in abutment with marginal portions of the sheet member so causing slight compression of the foam layers.
  • the channel member is further provided with struts 7 which serve as means for mounting the device in position in preparation for a coating operation.
  • a web (not shown) is passed continuously under an applicator device ('also not shown) such as a doctor knife or rotating roller, which serves to maintain a bank of coating composition on the web and applies a coating on to the web.
  • an applicator device such as a doctor knife or rotating roller, which serves to maintain a bank of coating composition on the web and applies a coating on to the web.
  • the web passes under the applicator device it is maintained in contact with the free surface of the sheet member which is in a horizontal plane.
  • the sheet material is subjected to vertical forces during the coating operation, especially when faulty or uneven webs are being coated, these forces 7 g 3 being absorbed by compression of the layers of foam material.
  • the sheet member was a sheet of spring steel having the dimensions 0.012 inch x 6 inches long x 5 ft. 3 inches wide.
  • each of the foam layers was a sheet of polyurethane foam having the dimensions 0.5 inch thick x 6 inches long x 5 feet 3 inches wide.
  • the channel member was made from 16 S.W.G. mild steel sheet. It will be realised that if the fabric used is caused to pass centrally over the sheet member then the fabric (having a width of approximately 50 inches) will be bounded by marginal exposed portions of the sheet member (this having a width of 5 ft. 3 inches).
  • a coating apparatus means supporting a traveling Web to be coated; said means comprising a fixed support mounting a rectangular channel member; at least one resilient foam pad carried by and Within the channel section of said member; a flexible metallic sheet overlying said pad and adapted to support the web being coated; said sheet being impervious to and resistant to reaction with the coating material; an inturned portions formed by the channel member side walls whereby to retain the pad and sheet in assembled relationship within said channel member.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
US561577A 1965-06-29 1966-06-29 Web support Expired - Lifetime US3344774A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB27490/65A GB1156202A (en) 1965-06-29 1965-06-29 Web Support

Publications (1)

Publication Number Publication Date
US3344774A true US3344774A (en) 1967-10-03

Family

ID=10260449

Family Applications (1)

Application Number Title Priority Date Filing Date
US561577A Expired - Lifetime US3344774A (en) 1965-06-29 1966-06-29 Web support

Country Status (3)

Country Link
US (1) US3344774A (enExample)
GB (1) GB1156202A (enExample)
NL (1) NL6609077A (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839830A (en) * 1973-04-27 1974-10-08 Fox Grinders Inc Anti-vibration work rest for grinders

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US690241A (en) * 1901-05-01 1901-12-31 Benjamin Day Pad for supporting printing-films.
US824781A (en) * 1905-12-26 1906-07-03 Charles Fricke Blackboard.
US1061126A (en) * 1912-05-24 1913-05-06 Progress Mfg Company Universal counter.
US1131904A (en) * 1910-02-21 1915-03-16 John F Buckie Noiseless stamping-pad.
US2285763A (en) * 1939-12-16 1942-06-09 Gustav A Vasel Printer's blanket
US2405598A (en) * 1944-06-23 1946-08-13 Elliott Bay Mill Co Resiliently supported shear block
US2587220A (en) * 1948-04-13 1952-02-26 Andrew A Ribaudo Telephone memorandum device or holder
US2616198A (en) * 1949-06-23 1952-11-04 Harry P Sewell Method and apparatus for forming raised characters and lines
GB741044A (en) * 1950-10-18 1955-11-23 Guido Trebitsch Improvements relating to cutting and punching machines
US2752280A (en) * 1953-02-02 1956-06-26 Crown Cork & Seal Co Printer's blanket and method of making same
US2819032A (en) * 1953-10-20 1958-01-07 Douglas Aircraft Co Inc Aircraft fuselage having panel damping material
US2875435A (en) * 1953-08-18 1959-02-24 Edward B Mcmillan Electromagnetic wave absorbing dielectric walls
US3284962A (en) * 1963-11-15 1966-11-15 North American Aviation Inc Holding tool

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US690241A (en) * 1901-05-01 1901-12-31 Benjamin Day Pad for supporting printing-films.
US824781A (en) * 1905-12-26 1906-07-03 Charles Fricke Blackboard.
US1131904A (en) * 1910-02-21 1915-03-16 John F Buckie Noiseless stamping-pad.
US1061126A (en) * 1912-05-24 1913-05-06 Progress Mfg Company Universal counter.
US2285763A (en) * 1939-12-16 1942-06-09 Gustav A Vasel Printer's blanket
US2405598A (en) * 1944-06-23 1946-08-13 Elliott Bay Mill Co Resiliently supported shear block
US2587220A (en) * 1948-04-13 1952-02-26 Andrew A Ribaudo Telephone memorandum device or holder
US2616198A (en) * 1949-06-23 1952-11-04 Harry P Sewell Method and apparatus for forming raised characters and lines
GB741044A (en) * 1950-10-18 1955-11-23 Guido Trebitsch Improvements relating to cutting and punching machines
US2752280A (en) * 1953-02-02 1956-06-26 Crown Cork & Seal Co Printer's blanket and method of making same
US2875435A (en) * 1953-08-18 1959-02-24 Edward B Mcmillan Electromagnetic wave absorbing dielectric walls
US2819032A (en) * 1953-10-20 1958-01-07 Douglas Aircraft Co Inc Aircraft fuselage having panel damping material
US3284962A (en) * 1963-11-15 1966-11-15 North American Aviation Inc Holding tool

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3839830A (en) * 1973-04-27 1974-10-08 Fox Grinders Inc Anti-vibration work rest for grinders

Also Published As

Publication number Publication date
NL6609077A (enExample) 1966-12-30
DE1577801A1 (de) 1971-07-15
GB1156202A (en) 1969-06-25

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