US3216458A - Hoses - Google Patents

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Publication number
US3216458A
US3216458A US106122A US10612261A US3216458A US 3216458 A US3216458 A US 3216458A US 106122 A US106122 A US 106122A US 10612261 A US10612261 A US 10612261A US 3216458 A US3216458 A US 3216458A
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US
United States
Prior art keywords
band
metal wire
hose
helically extending
tube
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
US106122A
Inventor
Sabe Olof
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ULVSUNDA GUMMIFABRIKS AB
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ULVSUNDA GUMMIFABRIKS AB
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Application filed by ULVSUNDA GUMMIFABRIKS AB filed Critical ULVSUNDA GUMMIFABRIKS AB
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Publication of US3216458A publication Critical patent/US3216458A/en
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Expired - Lifetime legal-status Critical Current

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    • 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
    • B29D23/001—Pipes; Pipe joints
    • 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
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/24—Hoses, i.e. flexible pipes wound from strips or bands
    • 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
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts

Definitions

  • This invention relates to a hose consisting of a tube of material such as textile fabric which cooperates with a helically extending metal wire and is held together by heat-treated rubber.
  • Characteristic of the invention is that the tube which is held together by heat-treated rubber consists of a helically extending band of a material such as textile fabric with overlapping edges, said band being so mounted on the outer side of the helically extending metal wire that the portions of the tube intermediate the coils of the metal Wire have the same internal diameter as the metal wire.
  • the invention is also concerned with a method for making the hose.
  • the characteristic features of this method are that the tube is formed from a band which in the developed state is helically wound onto a cylindrical mandrel simultaneously with the metal wire and in such a way that the metal wire Will come to lie on the inner side of the tube formed by the band, and that during the heat treatment the band is held engaged with the mandrel intermediate the helically extending coils of the metal wire by means of a forming means such as a helically wound textile cord.
  • FIG. l is a sectional view of the hose at an intermediate step in the manufacture thereof.
  • FIG. 2 is a sectional view, on an enlarged scale, of a part of the hose showing the vulcanizable rubber coating in detail.
  • the tube which is held together by heat-treated rubber consists of a helically extending band 2 of a material such as textile fabric with overlapping edges, said band 2 being so mounted on the outer side of the helically extending metal wire 3 that the portions of the tube intermediate the coils of the metal Wire 3 have the same internal diameter as said metal wire 3.
  • the helically extending band 2 is of uniform Width and has the same pitch as the helically extending metal Wire 3 and is of a width approximately twice as large as the spacing f any two adjacent coils of the helically extending metal wire 3.
  • the band 2 is wrapped in the developed state helically around the cylindrical mandrel 1 simultaneously with the metal wire 3, the wrapping being performed in such a way that the metal wire 3 will come to lie on the inner side of the tube formed by the band 2.
  • the band 2 preferably is a textile band coated with vulcanizable rubber 5, shown on an enlarged scale in FIG. 2 for purposes of illustration, which provides the binding together of the superimposed portions of the band 2 when the thus assembled hose is vulcanized by a vulcanizing process known per se.
  • the band 2 When the band 2 is of a width approximately twice as large as the spacing of two adjacent coils of the helically extending metal wire 3, the band 2 is wrapped preferably in such a way that its edges come to lie approximately midway between the coils of the metal Wire 3.
  • the band 2 is held engaged with the mandrel 1 intermediate the helically extending coils of the metal wire 3 by means of a helically wound member such as a textile cord 4 which is wound suciently tightly to press the portions of the bands 2 between coils of wire tightly against the mandrel 1.
  • a helically wound member such as a textile cord 4 which is wound suciently tightly to press the portions of the bands 2 between coils of wire tightly against the mandrel 1.
  • the cord 4 ensures that the adjoining portions of the band 2 are securely bound together and that the inner side of the hose snugly conforms to the shape of the mandrel 1, so that the cylindrical inner surface of the hose will be at least substantially smooth.
  • the textile cord 4 is removed after the heat treatment and thus does not diminish the flexibility of the hose in any way. It is very important that the finished hose possesses good flexibility, as the hose is intended inter alia for use with Vacuum cleaners and therefore must be airtight as Well.
  • the band 2 used for the manufacture of the hose should be substantially unstretchable in its longitudinal direction but resilient to some extent in its transverse direction. If the band 2 is of textile material it should thus have an unstretchable warp thread and a resilient weft thread. In this way the tube wound from the band 2 will have a certain resiliency in its lonigtudinal direction, which permits the tube to be pressed down into engagement with the mandrel 1 intermediate the coils of the metal wire 3 by means of the textile cord 4.
  • the band 2 may be cut diagonally from a textile fabric and joined together to a continuous band.
  • the heat treatment i.e. the vulcanization
  • the hose is given its nal shape in a conventional manner.
  • the band 2 is of textile fabric, the rubber will go into the interstices thereof when it is vulcanized and consequently the layer of rubber between the overlapping layers of the band will not remain as distinct as it appears in FIG. 2.
  • a hose consisting of a helically extending band of textile fabric of uniform width with the edges of the band overlapping to dene a tube, a helically extending metal wire Within said tube, the fabric lying only on the outer si-de of the helically extending metal wire, the helically extending band having the same pitch as the -helically extending wire and being of a width substantially only twice the spacing of any two adjacent coils of the helically extending metal wire with the band overlapping only substantially half the width of the preceding spire of the band, the fabric being only two plies thick along substantially the entire length of said hose, and the portions of the tube intermediate the coils of the metal wire extending inwardly between the coils of the wire and having the same internal diameter as the coil of metal wire, and a vulcanized coating of rubber on said band of textile fabric binding the overlapping portions of said band together.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Description

Nov. 9, 1965 o. SABE 3,216,458
HOSES Filed April 27, 1961 TTOR/VEYS United States Patent O 3,216,458 HOSES (Blof Sabe, Bromma, Sweden, assignor to Ulvsunda Gummifabriks Aktiebolag, Bromma, Sweden, a corporation of Sweden Filed Apr. 27, 1961, Ser. No. 106,122 Claims priority, application Sweden, May 3, 1960, 4,369/ 60 1 Claim. (Cl. 13S-122) This invention relates to a hose consisting of a tube of material such as textile fabric which cooperates with a helically extending metal wire and is held together by heat-treated rubber. Characteristic of the invention is that the tube which is held together by heat-treated rubber consists of a helically extending band of a material such as textile fabric with overlapping edges, said band being so mounted on the outer side of the helically extending metal wire that the portions of the tube intermediate the coils of the metal Wire have the same internal diameter as the metal wire.
The invention is also concerned with a method for making the hose. The characteristic features of this method are that the tube is formed from a band which in the developed state is helically wound onto a cylindrical mandrel simultaneously with the metal wire and in such a way that the metal wire Will come to lie on the inner side of the tube formed by the band, and that during the heat treatment the band is held engaged with the mandrel intermediate the helically extending coils of the metal wire by means of a forming means such as a helically wound textile cord.
For a better understanding the invention will be more fully 'described with reference to the accompanying drawings, in which:
Longitudinal FIG. l is a sectional view of the hose at an intermediate step in the manufacture thereof; and
FIG. 2 is a sectional view, on an enlarged scale, of a part of the hose showing the vulcanizable rubber coating in detail.
As will appear from the drawing the tube which is held together by heat-treated rubber consists of a helically extending band 2 of a material such as textile fabric with overlapping edges, said band 2 being so mounted on the outer side of the helically extending metal wire 3 that the portions of the tube intermediate the coils of the metal Wire 3 have the same internal diameter as said metal wire 3.
According to the preferred embodiment illustrated, the helically extending band 2 is of uniform Width and has the same pitch as the helically extending metal Wire 3 and is of a width approximately twice as large as the spacing f any two adjacent coils of the helically extending metal wire 3.
During the manufacture of the hose the band 2 is wrapped in the developed state helically around the cylindrical mandrel 1 simultaneously with the metal wire 3, the wrapping being performed in such a way that the metal wire 3 will come to lie on the inner side of the tube formed by the band 2. The band 2 preferably is a textile band coated with vulcanizable rubber 5, shown on an enlarged scale in FIG. 2 for purposes of illustration, which provides the binding together of the superimposed portions of the band 2 when the thus assembled hose is vulcanized by a vulcanizing process known per se.
"ice,
When the band 2 is of a width approximately twice as large as the spacing of two adjacent coils of the helically extending metal wire 3, the band 2 is wrapped preferably in such a way that its edges come to lie approximately midway between the coils of the metal Wire 3.
During the heat treatment the band 2 is held engaged with the mandrel 1 intermediate the helically extending coils of the metal wire 3 by means of a helically wound member such as a textile cord 4 which is wound suciently tightly to press the portions of the bands 2 between coils of wire tightly against the mandrel 1. The cord 4 ensures that the adjoining portions of the band 2 are securely bound together and that the inner side of the hose snugly conforms to the shape of the mandrel 1, so that the cylindrical inner surface of the hose will be at least substantially smooth.
The textile cord 4 is removed after the heat treatment and thus does not diminish the flexibility of the hose in any way. It is very important that the finished hose possesses good flexibility, as the hose is intended inter alia for use with Vacuum cleaners and therefore must be airtight as Well.
The band 2 used for the manufacture of the hose should be substantially unstretchable in its longitudinal direction but resilient to some extent in its transverse direction. If the band 2 is of textile material it should thus have an unstretchable warp thread and a resilient weft thread. In this way the tube wound from the band 2 will have a certain resiliency in its lonigtudinal direction, which permits the tube to be pressed down into engagement with the mandrel 1 intermediate the coils of the metal wire 3 by means of the textile cord 4.
In some cases the band 2 may be cut diagonally from a textile fabric and joined together to a continuous band.
The heat treatment, i.e. the vulcanization, is effected with the parts in the positions shown in the drawing, whereupon the hose is given its nal shape in a conventional manner. It will be understood that, because the band 2 is of textile fabric, the rubber will go into the interstices thereof when it is vulcanized and consequently the layer of rubber between the overlapping layers of the band will not remain as distinct as it appears in FIG. 2.
It will be obvious to those skilled in the art that various changes may be made Without departing from the spirit of the invention, and therefore the invention is not limited to what is shown in the drawings and described in the specication, but only as indicated in the appended claim.
What I claim and desire to secure by Letters Patent is:
A hose consisting of a helically extending band of textile fabric of uniform width with the edges of the band overlapping to dene a tube, a helically extending metal wire Within said tube, the fabric lying only on the outer si-de of the helically extending metal wire, the helically extending band having the same pitch as the -helically extending wire and being of a width substantially only twice the spacing of any two adjacent coils of the helically extending metal wire with the band overlapping only substantially half the width of the preceding spire of the band, the fabric being only two plies thick along substantially the entire length of said hose, and the portions of the tube intermediate the coils of the metal wire extending inwardly between the coils of the wire and having the same internal diameter as the coil of metal wire, and a vulcanized coating of rubber on said band of textile fabric binding the overlapping portions of said band together.
References Cited by the Examiner UNITED STATES PATENTS Kirnrnich 156-143 Meyers et a1 15 6-143 Martin 138-122 Roberts 15 6-144 Kahn 156-143 XR Noges et a1. 138-122 X Kahn 13.8-122 4 FOREIGN PATENTS l1,116 1894 Great Britain. 10,921 1902 Great Britain. 5 24,125 1903 Great Britain.
848,774 9/ 60 Great Britain.
LAVERNE D. GEIGER, Primary Examiner.
10 CARL F. KRAFFT, EARL M. BERGERT, LEWIS J.
LENNY, Examiners.
US106122A 1960-05-03 1961-04-27 Hoses Expired - Lifetime US3216458A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE04369/60A SE334020B (en) 1960-05-03 1960-05-03

Publications (1)

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US3216458A true US3216458A (en) 1965-11-09

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US (1) US3216458A (en)
CH (1) CH390010A (en)
DK (1) DK114460B (en)
GB (1) GB905800A (en)
SE (1) SE334020B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706326A (en) * 1971-07-09 1972-12-19 Richard G Bringolf Flexible conduit
US6158477A (en) * 1998-12-18 2000-12-12 Flexible Technologies, Inc. Flexible duct and method of making same
US20110016654A1 (en) * 2009-07-23 2011-01-27 Dyson Technology Limited Domestic vacuum cleaning appliance comprising a flexible hose
US20110016657A1 (en) * 2009-07-23 2011-01-27 Dyson Technology Limited Surface cleaning appliance
US10584811B2 (en) 2009-12-30 2020-03-10 Carl J Garrett Tapered helically reinforced hose and its manufacture
US10584812B2 (en) 2008-05-07 2020-03-10 Globalmed, Inc. Stretch hose and hose production method
US10792454B2 (en) 2017-01-30 2020-10-06 Globalmed, Inc. Heated respiratory hose assembly
US10859188B2 (en) 2009-01-15 2020-12-08 Globalmed, Inc. Stretch hose and hose production method

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189401116A (en) * 1894-01-18 1894-11-24 John Cockburn Improvements in Metallic and Composite Hose.
GB190210921A (en) * 1902-05-13 1903-04-16 Peter Maclellan Combined Suction and Pressure Hose.
GB190324125A (en) * 1903-11-06 1904-09-01 William Henry Kanzon Bowley Improvements in Flexible Metallic Tubing.
US1797193A (en) * 1926-08-03 1931-03-17 Goodyear Tire & Rubber Method of making flexible conduits
US2539853A (en) * 1947-12-08 1951-01-30 Ohio Rubber Co Method and machine for making flexible tubing
US2597806A (en) * 1946-10-30 1952-05-20 Hoover Co Suction cleaner hose
US2715914A (en) * 1946-03-18 1955-08-23 Robert E Roberts Flexible tube
US2798508A (en) * 1954-12-08 1957-07-09 Acme Hamilton Mfg Corp Flexible hose and method of making same
US2913011A (en) * 1956-10-01 1959-11-17 Dayton Rubber Company Flexible conduit
GB848774A (en) * 1957-12-20 1960-09-21 Ulvsunda Gummifabriks Aktiebol A method of making hoses, and a hose made by this method
US3029843A (en) * 1957-11-01 1962-04-17 Acme Hamilton Mfg Corp Flexible hose and method of making same

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB189401116A (en) * 1894-01-18 1894-11-24 John Cockburn Improvements in Metallic and Composite Hose.
GB190210921A (en) * 1902-05-13 1903-04-16 Peter Maclellan Combined Suction and Pressure Hose.
GB190324125A (en) * 1903-11-06 1904-09-01 William Henry Kanzon Bowley Improvements in Flexible Metallic Tubing.
US1797193A (en) * 1926-08-03 1931-03-17 Goodyear Tire & Rubber Method of making flexible conduits
US2715914A (en) * 1946-03-18 1955-08-23 Robert E Roberts Flexible tube
US2597806A (en) * 1946-10-30 1952-05-20 Hoover Co Suction cleaner hose
US2539853A (en) * 1947-12-08 1951-01-30 Ohio Rubber Co Method and machine for making flexible tubing
US2798508A (en) * 1954-12-08 1957-07-09 Acme Hamilton Mfg Corp Flexible hose and method of making same
US2913011A (en) * 1956-10-01 1959-11-17 Dayton Rubber Company Flexible conduit
US3029843A (en) * 1957-11-01 1962-04-17 Acme Hamilton Mfg Corp Flexible hose and method of making same
GB848774A (en) * 1957-12-20 1960-09-21 Ulvsunda Gummifabriks Aktiebol A method of making hoses, and a hose made by this method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3706326A (en) * 1971-07-09 1972-12-19 Richard G Bringolf Flexible conduit
US6158477A (en) * 1998-12-18 2000-12-12 Flexible Technologies, Inc. Flexible duct and method of making same
US10584812B2 (en) 2008-05-07 2020-03-10 Globalmed, Inc. Stretch hose and hose production method
US10859188B2 (en) 2009-01-15 2020-12-08 Globalmed, Inc. Stretch hose and hose production method
US20110016654A1 (en) * 2009-07-23 2011-01-27 Dyson Technology Limited Domestic vacuum cleaning appliance comprising a flexible hose
US20110016657A1 (en) * 2009-07-23 2011-01-27 Dyson Technology Limited Surface cleaning appliance
US10584811B2 (en) 2009-12-30 2020-03-10 Carl J Garrett Tapered helically reinforced hose and its manufacture
US10792454B2 (en) 2017-01-30 2020-10-06 Globalmed, Inc. Heated respiratory hose assembly
US11052214B2 (en) 2017-01-30 2021-07-06 Globalmed, Inc. Heated respiratory hose wiring

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Publication number Publication date
SE334020B (en) 1971-04-05
GB905800A (en) 1962-09-12
DK114460B (en) 1969-06-30
CH390010A (en) 1965-03-31

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