GB753896A - Improvements in or relating to tubes of polyvinyl chloride - Google Patents

Improvements in or relating to tubes of polyvinyl chloride

Info

Publication number
GB753896A
GB753896A GB10217/54A GB1021754A GB753896A GB 753896 A GB753896 A GB 753896A GB 10217/54 A GB10217/54 A GB 10217/54A GB 1021754 A GB1021754 A GB 1021754A GB 753896 A GB753896 A GB 753896A
Authority
GB
United Kingdom
Prior art keywords
tube
metallic
strands
spirally
wires
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
Application number
GB10217/54A
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.)
Dynamit Nobel AG
Original Assignee
Dynamit Nobel AG
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 Dynamit Nobel AG filed Critical Dynamit Nobel AG
Publication of GB753896A publication Critical patent/GB753896A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/125—Rigid pipes of plastics with or without reinforcement electrically conducting
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/12—Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0072—Roughness, e.g. anti-slip

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Elimination Of Static Electricity (AREA)

Abstract

753,896. Discharging static electricity. DYNAMIT AKT.-GES. VORM. A. NOBEL & CO. April 7, 1954 [Oct. 30, 1953], No. 10217/54. Class 35. [Also in Groups V, XXVIII and XXXVI] A rigid tube having a smooth bore and made of hard polyvinyl chloride incorporates electricallyconductive material for earthing electrostatic charges arising on the passage of grain or flour therethrough. One or more strips of metallic foil may be stuck to the external surface of and parallel to the axis of the tube, or spirally. Alternatively, (a) metallic strands or wires 12, Fig. 3, are received in grooves or channels provided in the internal or external surface of the tube and secured by welding or sticking, the strands being flush with the surface of the tube, (b) the strands or wires, or a network thereof, are pressed in a hot state into the surface of the tube, (c) metallic powder is applied by the use of a lacquer over the entire surface of the tube or a part thereof, or in strip form parallel to the axis of the tube or spirally, (d) a metallic layer is deposited on the surface of the tube or a part thereof, in the form of strips parallel to the axis of the tube, or spirally by spraying or electron deposition, and (e) a metallic powder, such as aluminium or bronze, and/or graphite is incorporated in the tube as the latter is extruded; also, extruded tubes having metallic powder deposited on the outer surface thereof may include embedded metallic wires, strands, foils or strips.
GB10217/54A 1953-10-30 1954-04-07 Improvements in or relating to tubes of polyvinyl chloride Expired GB753896A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE753896X 1953-10-30

Publications (1)

Publication Number Publication Date
GB753896A true GB753896A (en) 1956-08-01

Family

ID=6658489

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10217/54A Expired GB753896A (en) 1953-10-30 1954-04-07 Improvements in or relating to tubes of polyvinyl chloride

Country Status (1)

Country Link
GB (1) GB753896A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258297B (en) * 1955-12-27 1968-01-04 Union Carbide Corp Device for extrusion of thin-walled hoses
GB2249281B (en) * 1990-10-30 1994-09-07 Kibun Kk Process for producing fish paste product and coloring nozzle for use in this process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1258297B (en) * 1955-12-27 1968-01-04 Union Carbide Corp Device for extrusion of thin-walled hoses
GB2249281B (en) * 1990-10-30 1994-09-07 Kibun Kk Process for producing fish paste product and coloring nozzle for use in this process

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