US2679823A - Wire coating apparatus - Google Patents

Wire coating apparatus Download PDF

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Publication number
US2679823A
US2679823A US219860A US21986051A US2679823A US 2679823 A US2679823 A US 2679823A US 219860 A US219860 A US 219860A US 21986051 A US21986051 A US 21986051A US 2679823 A US2679823 A US 2679823A
Authority
US
United States
Prior art keywords
wire
coating material
receptacle
opening
mercury
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
US219860A
Other languages
English (en)
Inventor
Robert H Denham
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.)
General Electric Co
Original Assignee
General Electric Co
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
Priority to NL85924D priority Critical patent/NL85924C/xx
Priority to NL7413853.B priority patent/NL168609B/xx
Application filed by General Electric Co filed Critical General Electric Co
Priority to US219860A priority patent/US2679823A/en
Application granted granted Critical
Publication of US2679823A publication Critical patent/US2679823A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B05C3/00—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material
    • B05C3/02—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material
    • B05C3/12—Apparatus in which the work is brought into contact with a bulk quantity of liquid or other fluent material the work being immersed in the liquid or other fluent material for treating work of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/122—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex
    • B29B15/125—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length with a matrix in liquid form, e.g. as melt, solution or latex by dipping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B15/00—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00
    • B29B15/08—Pretreatment of the material to be shaped, not covered by groups B29B7/00 - B29B13/00 of reinforcements or fillers
    • B29B15/10—Coating or impregnating independently of the moulding or shaping step
    • B29B15/12—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length
    • B29B15/14—Coating or impregnating independently of the moulding or shaping step of reinforcements of indefinite length of filaments or wires
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
    • B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
    • B29C41/14—Dipping a core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/06—Insulating conductors or cables
    • H01B13/16—Insulating conductors or cables by passing through or dipping in a liquid bath; by spraying
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3462—Cables
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/44—Plastic and nonmetallic article shaping or treating: processes using destructible molds or cores in molding processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/012—Destructible mold and core

Definitions

  • This invention relates to apparatus for coating wire and, more particularly, relates to a frictionless seal through which a wire to be coated may be introduced into a bath of coating material contained in a holding receptacle therefor.
  • the liquid in the lower chamber must be miscible with the coating material since it will tend to be carried by the moving wire and, due to the head pressure, into the main receptacle. Aside from the fact that the liquid must be miscible with the coating material and must be periodically replenished, such an arrangement is complex, involves a number of parts to be maintained, and is relatively costly.
  • the single figure illustrated shows a cross-sectional view through a container or receptacle l0 containing a liquid bath of a coating material H such as polytetrafluoroethylene for the insulation of wire such as l2.
  • a coating material H such as polytetrafluoroethylene for the insulation of wire such as l2.
  • the wire i2 is drawn upwardly through an opening in the bottom l3 of the container, through the bath H,'whereby a thin layer I 4 of the coating material is picked up by and thus supplied to the wire, after which the wire passes through an oven, not shown, then over a driving sheave l5. From the driving sheave I5, the
  • wire is either recirculated through the coating.
  • the container comprises a cylindrical passageway I 5 in communication with the exterior of the receptacle and otherwise terminating in wardly in an enlarged recess I! in the inner surface of the container.
  • a fluid 18, such as mercury which is immiscible with the coating material and has sufficient weight or density to be retained in the recess.
  • the portion l6 of the opening is sufiiciently large to accommodate several sizes of wire with suitable clearance, so there will be no friction or rubbing action between the wire and the walls of the opening in the presence of the coating ma. terial.
  • the portion is must 3 be sumciently small so that the pool of mercury will not tend to flow therethrough or will be retained in the recess by virtue of its high surface tension characteristic.
  • a passage 16 having a diameter of .032" has been employed to accommoderate wire ranging in size from .002" to .016 diameter.
  • the upper portion or recess H in this case happens to have a diameter of it will be obvious that both the diameter and depth of this portion of the opening may vary within wide limits so long as there is no frictional engagement between the wire and the walls of the opening. It will be apparent that the mercury affords no rubbing action to precipitate the coating material in direct engagement or contact therewith, so that a seal has hereby been provided to retain the coating material,
  • Wire coating apparatus comprising a receptacle containing a bath of liquid coating material and having an opening through the bottom wall thereof, and a pool of mercury disposed within said receptacle adjacent said opening and sealing ofi the inner end thereof, said mercury being immiscible with and having a density greater than the density of said coating material,
  • Wire coating apparatus comprising a receptacle containing a bath of liquid coating material, the bottom of said receptacle having a recess in the inner surface thereof in communication with a restricted opening extending through said bottom to the exterior of said receptacle, and a frictionless seal to prevent flow of said coating material through said opening comprising a pool of mercury occupying said recess, said mercury being immiscible with and having a density greater than said coating material.
  • Wire coating apparatus comprising a receptacle having a bottom and side walls for holding a bath of liquid coating material, said bottom wall having a passage therein in communication with the exterior of said receptacle and terminating in an enlarged recess in the inner surface of said bottom wall, a pool of mercury being immiscible with and having a density greater than said coating material occupying said recess below said coating material, said passage being sufiiciently large to permit free passage therethrough of said wire and sufliciently small so that the surface tension characteristic will retain said mercury in said recess, and means for drawing said wire through said passage, said mercury and said bath of coating material.
  • Wire coating apparatus comprising a receptacle having a bottom and side walls for holding a bath of liquid coating material, said bottom wall having a cylindrical passage therein having a diameter of 5" in communication with the exterior of said receptacle, and terminating in an enlarged cylindrical recess having a diameter of in the inner surface of said bottom wall, a poo1 of mercury occupying said recess, and coating material bath of polytetrafiuoroethylene dispersion immiscible with and having a density less than said mercury re.- tained in said receptacle by said pool of mercury.
  • Wire coating apparatus comprising a receptacle having a bottom wall and side walls, said bottom wall having a restricted passage therethrough in communication with the interior and the exterior of said receptacle, said passage being sufiiciently large to permit free passage therethrough of a wire to be coated, a pool of non-coating sealing fluid at the bottom of said receptacle surrounding the wire where it enters the receptacle from the passage, and a bath o1.
  • sealing fluid liquid coating material with which said wire is to be coated after it passes through the sealing fluid and lying above but in surface contact with said fluid, said sealing fluid having a greater density than said coating material and being immiscible with it, whereby said sealingfluid is retained at the bottom of the receptacle beneath the coating material while the wire passes upwardly through the receptacle, and said sealing fluid further having a surface tension relative to the size of said passage and the size of wire to be coated sufiicient to prevent egress of the sealing fluid from the receptacle through the:

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Coating Apparatus (AREA)
US219860A 1951-04-07 1951-04-07 Wire coating apparatus Expired - Lifetime US2679823A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
NL85924D NL85924C (ref) 1951-04-07
NL7413853.B NL168609B (nl) 1951-04-07 Klepsysteem voor een gasaansteker.
US219860A US2679823A (en) 1951-04-07 1951-04-07 Wire coating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US219860A US2679823A (en) 1951-04-07 1951-04-07 Wire coating apparatus

Publications (1)

Publication Number Publication Date
US2679823A true US2679823A (en) 1954-06-01

Family

ID=22821061

Family Applications (1)

Application Number Title Priority Date Filing Date
US219860A Expired - Lifetime US2679823A (en) 1951-04-07 1951-04-07 Wire coating apparatus

Country Status (2)

Country Link
US (1) US2679823A (ref)
NL (2) NL85924C (ref)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875501A (en) * 1953-03-18 1959-03-03 Clevite Corp Forming electromechanically sensitive ceramic bodies
US2916347A (en) * 1954-08-04 1959-12-08 Owens Corning Fiberglass Corp Production of coated glass fibers
US2980956A (en) * 1953-12-21 1961-04-25 Owens Corning Fiberglass Corp Metal applicators for glass filaments
US3453986A (en) * 1968-02-27 1969-07-08 United Aircraft Corp Reactor seal incorporating a slit orifice
US3453987A (en) * 1968-02-27 1969-07-08 United Aircraft Corp Reactor seal incorporating a pivotal orifice member
US3598084A (en) * 1969-12-02 1971-08-10 United Aircraft Corp Vapor deposition chamber including sealing and heating means
US3738314A (en) * 1968-03-21 1973-06-12 Gen Electric Filament coating apparatus including mercury contact heating means
US3964434A (en) * 1974-11-04 1976-06-22 Technicon Instruments Corporation Coating apparatus including liquid sealant between compartments
FR2499901A1 (fr) * 1981-02-13 1982-08-20 Thoratec Lab Corp Appareil et procede de fabrication d'un tube multicouche
WO1997018936A1 (en) * 1995-11-22 1997-05-29 Rijksuniversiteit Te Groningen A method and a system for manufacturing a catheter and a catheter manufactured by that method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US813618A (en) * 1905-07-10 1906-02-27 Arlington Company Coated strip and method of making the same.
US1261110A (en) * 1916-05-31 1918-04-02 Frank A Fahrenwald Process of coating tungsten or molybdenum articles with precious metals.
US2127413A (en) * 1934-11-05 1938-08-16 Goodrich Co B F Method and apparatus for coating strip material
DE673787C (de) * 1935-11-14 1939-03-29 Siemens Schuckertwerke Akt Ges Verfahren zur fortlaufenden Herstellung von Lackschlaeuchen oder gleichartigen Isolierhuellen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US813618A (en) * 1905-07-10 1906-02-27 Arlington Company Coated strip and method of making the same.
US1261110A (en) * 1916-05-31 1918-04-02 Frank A Fahrenwald Process of coating tungsten or molybdenum articles with precious metals.
US2127413A (en) * 1934-11-05 1938-08-16 Goodrich Co B F Method and apparatus for coating strip material
DE673787C (de) * 1935-11-14 1939-03-29 Siemens Schuckertwerke Akt Ges Verfahren zur fortlaufenden Herstellung von Lackschlaeuchen oder gleichartigen Isolierhuellen

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2875501A (en) * 1953-03-18 1959-03-03 Clevite Corp Forming electromechanically sensitive ceramic bodies
US2980956A (en) * 1953-12-21 1961-04-25 Owens Corning Fiberglass Corp Metal applicators for glass filaments
US2916347A (en) * 1954-08-04 1959-12-08 Owens Corning Fiberglass Corp Production of coated glass fibers
US3453986A (en) * 1968-02-27 1969-07-08 United Aircraft Corp Reactor seal incorporating a slit orifice
US3453987A (en) * 1968-02-27 1969-07-08 United Aircraft Corp Reactor seal incorporating a pivotal orifice member
US3738314A (en) * 1968-03-21 1973-06-12 Gen Electric Filament coating apparatus including mercury contact heating means
US3598084A (en) * 1969-12-02 1971-08-10 United Aircraft Corp Vapor deposition chamber including sealing and heating means
US3964434A (en) * 1974-11-04 1976-06-22 Technicon Instruments Corporation Coating apparatus including liquid sealant between compartments
FR2499901A1 (fr) * 1981-02-13 1982-08-20 Thoratec Lab Corp Appareil et procede de fabrication d'un tube multicouche
WO1997018936A1 (en) * 1995-11-22 1997-05-29 Rijksuniversiteit Te Groningen A method and a system for manufacturing a catheter and a catheter manufactured by that method

Also Published As

Publication number Publication date
NL168609B (nl)
NL85924C (ref)

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