GB844974A - Improvements relating to hoses - Google Patents

Improvements relating to hoses

Info

Publication number
GB844974A
GB844974A GB39221/57A GB3922157A GB844974A GB 844974 A GB844974 A GB 844974A GB 39221/57 A GB39221/57 A GB 39221/57A GB 3922157 A GB3922157 A GB 3922157A GB 844974 A GB844974 A GB 844974A
Authority
GB
United Kingdom
Prior art keywords
coil
tube
turns
conductor
dec
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
GB39221/57A
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.)
Hoover Ltd
Original Assignee
Hoover 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 Hoover Ltd filed Critical Hoover Ltd
Publication of GB844974A publication Critical patent/GB844974A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/18—Pleated or corrugated hoses
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • 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
    • B29K2021/00—Use of unspecified rubbers as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

844,974. Making flexible tubes. HOOVER Ltd. Dec. 17, 1957 [Dec. 21, 1956 (2)] No. 39221/57. Class 87(2). [Also in Group XXVIII] A flexible and extensible hose is made by passing a steel coil 20 the turns of which are slightly apart through an extruding head 35 in which a thin elastomeric tube 21 made e.g. of polyvinyl chloride is extruded over the coil. The coil passes freely through and is centred by a guide 50 to an extrusion orifice 51 having a lateral opening 52 in its wall which receives a strip electrical conductor 59 from a spool 65. The strip is fed through the orifice 51 whilst hot synthetic plastic material is also fed about the turns of the coil so that on emergence a tube of material is formed enveloping conductor and coil. A fan maintains a suction in the head 35 so that the extruded tube necks down against the coil 20 so that the wall of the tube is drawn inwards together with the conductor between the turns of the coil. The complete hose then passes through rollers (not shown), which freely allow the coil to longitudinally contract and form deep corrugations in the tube, which sets to this form. Specification 784,060, 800,371 and 816,160 are referred to.
GB39221/57A 1956-12-21 1957-12-17 Improvements relating to hoses Expired GB844974A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US844974XA 1956-12-21 1956-12-21

Publications (1)

Publication Number Publication Date
GB844974A true GB844974A (en) 1960-08-17

Family

ID=22185330

Family Applications (1)

Application Number Title Priority Date Filing Date
GB39221/57A Expired GB844974A (en) 1956-12-21 1957-12-17 Improvements relating to hoses

Country Status (1)

Country Link
GB (1) GB844974A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117065118A (en) * 2023-10-16 2023-11-17 四川天府南格尔生物医学有限公司 Multi-cavity tube for bag-type blood separator and manufacturing method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117065118A (en) * 2023-10-16 2023-11-17 四川天府南格尔生物医学有限公司 Multi-cavity tube for bag-type blood separator and manufacturing method thereof
CN117065118B (en) * 2023-10-16 2024-01-02 四川天府南格尔生物医学有限公司 Multi-cavity tube for bag-type blood separator and manufacturing method thereof

Similar Documents

Publication Publication Date Title
GB800373A (en) Improvements relating to flexible tubing
GB739412A (en) Improvements relating to flexible hoses
GB1391027A (en) Flexible hose
GB1124656A (en) Improvements relating to tubes or similar constructions
GB1414035A (en) Hose
GB1024954A (en) Method for the manufacture of pipes from thermoplastic material
FR2023250A1 (en) Armoured plastic hose for high pressure oils
GB648562A (en) Improvements relating to flexible tubing
GB1076102A (en) Improvements in the manufacture of hose pipes
GB1419841A (en) Flexible retractable tubes
GB844974A (en) Improvements relating to hoses
GB1086744A (en) Method of and apparatus for the calibration of tubes
GB905800A (en) Improvements in or relating to hoses
GB588858A (en) Improvements in or relating to flexible tubing
GB743743A (en) Improvements relating to flexible hoses
GB741526A (en) Improvements in flexible hoses
GB762800A (en) Improvements in or relating to tubing
GB887093A (en) Improvements in or relating to a method and device for the manufacture of flexible tubing
GB979065A (en) Improvements in or relating to plastic tubes
GB1186964A (en) Endotracheal Tubes.
GB882364A (en) Improvements in or relating to the manufacture of hosepipes
GB1000541A (en) Conduit with enlarged end and method of forming same
GB1514321A (en) Winding tubes and containers
GB1149963A (en) An improved reinforced flexible tube
GB1146652A (en) Improvements in low pressure hoses