US2627378A - Method for securing a tensioned wire around cores - Google Patents

Method for securing a tensioned wire around cores Download PDF

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Publication number
US2627378A
US2627378A US99460A US9946049A US2627378A US 2627378 A US2627378 A US 2627378A US 99460 A US99460 A US 99460A US 9946049 A US9946049 A US 9946049A US 2627378 A US2627378 A US 2627378A
Authority
US
United States
Prior art keywords
wire
core
plate
winding
snubbing
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
US99460A
Other languages
English (en)
Inventor
Philip R Hirsh
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.)
Lock Joint Pipe Co
Original Assignee
Lock Joint Pipe 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
Application filed by Lock Joint Pipe Co filed Critical Lock Joint Pipe Co
Priority to US99460A priority Critical patent/US2627378A/en
Priority to GB2526/51A priority patent/GB683661A/en
Priority to FR1042737D priority patent/FR1042737A/fr
Priority to BE501279D priority patent/BE501279A/fr
Priority to DEL8327A priority patent/DE906988C/de
Application granted granted Critical
Publication of US2627378A publication Critical patent/US2627378A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H65/00—Securing material to cores or formers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/56—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts
    • B28B21/60—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements
    • B28B21/62—Methods or machines specially adapted for the production of tubular articles incorporating reinforcements or inserts prestressed reinforcements circumferential laterally tensioned
    • B28B21/64—Winding arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H81/00—Methods, apparatus, or devices for covering or wrapping cores by winding webs, tapes, or filamentary material, not otherwise provided for
    • B65H81/06—Covering or wrapping elongated cores
    • B65H81/08—Covering or wrapping elongated cores by feeding material obliquely to the axis of the core

Definitions

  • This invention relates to a method for securing a tensioned line around a core, and more particularly to producing a prestressed concrete body such as a pipe, pile, post or the like, having a plain concrete exterior wrapped with a tensioned wire winding.
  • the objects of the invention is to fasten or bind a wrapping of tensioned wire about a core having no metallic parts accessible to which the wire may be anchored.
  • loose turns of a wire are passed around a core to form a snubbing.
  • the free end of the wire and a portion of the wire between the free end and the snubbing turns are fastened, respectively, to a portion of the machine by which the core is rotated and to a loose plate of metal.
  • the loose plate is located against the core and under the snubbing turns
  • the wire is tensioned by a pull exerted upon a loop of the wire between the plate and the snubbing.
  • the applied tension is transmitted to the snubbing turns which are tightened about the core and bear upon and stabilize the plate in fixed position against the core.
  • the wire is then wound about the core in a helix by relatively rotating and translating the core and the tensioned loop of wire with respect to each other.
  • a second plate is located against the core in advance of the snub- .bing so that the snubbing and following turns of wire will travel over the second plate.
  • Fig. 1 illustrates the manner in which the first end of the wire winding is secured in place at the beginning of the winding operation
  • Fig. 2 is a section transverse of the core as viewed from the right of Fig. l
  • Fig. 2A is a detail of a connector-restraining device
  • Fig. 3 illustrates an intermediate stage of the winding operation
  • Fig. 4 illustrates a stage following the placement of a second plate against the exterior of the core
  • Fig. 5 illustrates the stage of operation reached when the winding has been completed and the wire is fastened to the second plate
  • Fig. 6 illustrates a prestressed core having a wire winding secured in accordance with the present invention
  • Fig. '7 is a longitudinal section of a portion of an end of a concrete pipe about which the wire winding has been placed.
  • the concrete body or core illustrated in the drawing is in the form of a pipe IEI having no appurtenances to which a tensioned wire winding may be connected.
  • the ends of the pipe are engaged in and by the rings H and I2 which are adapted to be mounted in a machine for rotation.
  • the pipe and the rings are rotated under power and it is indifferent as to the form of the apparatus by which they are rotated, suitable machines for this purpose being well-known.
  • the rings together with the pipe or other form of core, are rotated on their axis, and for this purpose the rings may be supported on pairs of rollers 13 and M, as best shown in Fig. 2.
  • a few turns of the wire are wrapped around one end of the core to provide a snubbing [5.
  • a loop It of the wire is left rearward of the snubbing and the loop is caused to engage a pulley I! of a tensioning device.
  • the order of attachment of the Wire to the machine part or to the plate is immaterial.
  • any part of the wire which is to constitute a permanent part of the wire wrapping may be excessively heated, as by temperatures incident to Welding, or that the wire be secured in any manner which could weaken the wire. While ordinarily any suitable fastening means may be employed, it is preferable to secure high tensile steel wire to the plate by a device The end of the wire.
  • a connecting device of this kind is described in the United States Patent No. 2,375,921, and if such a device is used it is necessary to initially thread the wire through the several sleeves which are to be used before the end of the wire is secured to the rotating part of the machine.
  • are illustrated in the drawing.
  • the sleeve 20 has been compressed upon the wire and has been fastened to the plate 19, by welding.
  • the sleeve 2! is loosely supported on the wire (Figs; 1, 2 and 2A) and the wire is permitted to slide therethrough during the winding operation and until it is to be compressed to seizeuponthe wire (Fig.
  • is heldv in reserve by a guide which is translated axially of the core at the rate of operation at which the winding progresses.
  • This guide may take the form of a socket member 22, pivotally supported from links 23 2 1 which are pivotally. attached to the hubs or axles of'the pulley Ill.
  • the sleeve 2! is manually relievedfrom the socket22 whenever it is desiredto'cornpress th sleeve and secure it to the wire.
  • Theweight 25 1 epresents the application of a constant pull upon, hewire. loop It. As the Winding operation continues, the wire is drawn fromthe source. of supply and wound about the core and into the snubbing turns it and the permanentwinding 2] (Fig. 3). The permanent windingsecurely, holds the plate Win a fixed position. 7
  • a second plate 23 is placed. against. the exterior of the core andthe winding operation is continued with the. snubbing I5 and the. permanent winding 21 advancingover the plate (Fig. 4). The tensioned winding secures thegplate in fixed position.
  • is released from the retaining device 22 and fastened to the wire in such a position as to locate the sleeve opposite the fixed plate 28, as illustrated in Fig. 5, by rotating the pipe sufilciently for that purpose.
  • or other fastening device may be secured to the plate by weldin and when secured, the tension developed by the pulley is released and the Wire is severed between the fastening device and the snubbing turns. The snubbing turns are subsequently removed.
  • the appearance of the wrapped core is illustrated in Fig. 6, and a detail of a prestressed concrete pipe having a tensioned winding fastened in the manner described is illustrated in Fig. 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Wire Processing (AREA)
  • Piles And Underground Anchors (AREA)
  • Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
  • Reinforcement Elements For Buildings (AREA)
US99460A 1949-06-16 1949-06-16 Method for securing a tensioned wire around cores Expired - Lifetime US2627378A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
US99460A US2627378A (en) 1949-06-16 1949-06-16 Method for securing a tensioned wire around cores
GB2526/51A GB683661A (en) 1949-06-16 1951-02-01 Improvements in and relating to prestressed bodies of concrete or similar formable material
FR1042737D FR1042737A (fr) 1949-06-16 1951-02-09 Perfectionnements relatifs à un corps précontraint et à un procédé pour fixer un fil sous tension autour d'un noyau
BE501279D BE501279A (enrdf_load_stackoverflow) 1949-06-16 1951-02-15
DEL8327A DE906988C (de) 1949-06-16 1951-02-18 Verankerung einer vorgespannten Umschnuerung auf einem Bauglied und Verfahren zum Umschnueren eines Baugliedes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US99460A US2627378A (en) 1949-06-16 1949-06-16 Method for securing a tensioned wire around cores

Publications (1)

Publication Number Publication Date
US2627378A true US2627378A (en) 1953-02-03

Family

ID=34738295

Family Applications (1)

Application Number Title Priority Date Filing Date
US99460A Expired - Lifetime US2627378A (en) 1949-06-16 1949-06-16 Method for securing a tensioned wire around cores

Country Status (5)

Country Link
US (1) US2627378A (enrdf_load_stackoverflow)
BE (1) BE501279A (enrdf_load_stackoverflow)
DE (1) DE906988C (enrdf_load_stackoverflow)
FR (1) FR1042737A (enrdf_load_stackoverflow)
GB (1) GB683661A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2697452A (en) * 1952-07-03 1954-12-21 Aeroduct Inc Flexible duct construction
US3052266A (en) * 1958-04-28 1962-09-04 American Pipe & Constr Co Machine for winding wire in making prestressed bevel-end concrete pipe
US3082972A (en) * 1960-09-29 1963-03-26 Francesco Emilio Di Washing and drying apparatus for fishing lines
US3278128A (en) * 1963-01-16 1966-10-11 American Pipe & Constr Co Method of prestressing concrete pipe
US3367370A (en) * 1966-02-09 1968-02-06 Western Packing And Supply Com Plastic pipe construction
US4166000A (en) * 1974-11-27 1979-08-28 Dunlop Limited Apparatus for winding helical reinforcement into a polymeric tube
USRE30393E (en) * 1979-03-26 1980-09-02 Western Packing And Supply Company Plastic pipe construction
EP0311720A1 (en) * 1987-10-14 1989-04-19 British Pipe Coaters Limited Method and apparatus for coating pipes
WO1989003289A1 (en) * 1987-10-14 1989-04-20 British Pipe Coaters Limited Method and apparatus for coating pipes
US20040231740A1 (en) * 2001-08-07 2004-11-25 Jerome Stubler Method for repairing pipes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU8687175A (en) * 1974-11-27 1977-06-02 Dunlop Ltd Reinforced polymeric articles

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236107A (en) * 1938-03-04 1941-03-25 Joseph E Miller Concrete pipe
US2371805A (en) * 1942-08-28 1945-03-20 Charles G Cooper Conduit coupling means
US2375921A (en) * 1942-12-02 1945-05-15 Lock Joint Pipe Co Reinforced concrete pipe and method for making same
US2426631A (en) * 1942-01-08 1947-09-02 Specialties Dev Corp Wire tensioning device
US2498681A (en) * 1945-10-15 1950-02-28 Lock Joint Pipe Co Method for winding

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2236107A (en) * 1938-03-04 1941-03-25 Joseph E Miller Concrete pipe
US2426631A (en) * 1942-01-08 1947-09-02 Specialties Dev Corp Wire tensioning device
US2371805A (en) * 1942-08-28 1945-03-20 Charles G Cooper Conduit coupling means
US2375921A (en) * 1942-12-02 1945-05-15 Lock Joint Pipe Co Reinforced concrete pipe and method for making same
GB586794A (en) * 1942-12-02 1947-04-01 Lock Joint Pipe Co Improvements in or relating to pipes or other bodies of reinforced concrete
US2498681A (en) * 1945-10-15 1950-02-28 Lock Joint Pipe Co Method for winding

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2697452A (en) * 1952-07-03 1954-12-21 Aeroduct Inc Flexible duct construction
US3052266A (en) * 1958-04-28 1962-09-04 American Pipe & Constr Co Machine for winding wire in making prestressed bevel-end concrete pipe
US3082972A (en) * 1960-09-29 1963-03-26 Francesco Emilio Di Washing and drying apparatus for fishing lines
US3278128A (en) * 1963-01-16 1966-10-11 American Pipe & Constr Co Method of prestressing concrete pipe
US3367370A (en) * 1966-02-09 1968-02-06 Western Packing And Supply Com Plastic pipe construction
US4166000A (en) * 1974-11-27 1979-08-28 Dunlop Limited Apparatus for winding helical reinforcement into a polymeric tube
USRE30393E (en) * 1979-03-26 1980-09-02 Western Packing And Supply Company Plastic pipe construction
EP0311720A1 (en) * 1987-10-14 1989-04-19 British Pipe Coaters Limited Method and apparatus for coating pipes
WO1989003289A1 (en) * 1987-10-14 1989-04-20 British Pipe Coaters Limited Method and apparatus for coating pipes
GB2231511A (en) * 1987-10-14 1990-11-21 British Pipe Coaters Method and apparatus for coating pipes
GB2231511B (en) * 1987-10-14 1991-10-16 British Pipe Coaters Method and apparatus for coating pipes
US20040231740A1 (en) * 2001-08-07 2004-11-25 Jerome Stubler Method for repairing pipes
US7174920B2 (en) * 2001-08-07 2007-02-13 Freyssinet International (Stup) Method for repairing pipes

Also Published As

Publication number Publication date
GB683661A (en) 1952-12-03
BE501279A (enrdf_load_stackoverflow) 1952-05-09
DE906988C (de) 1954-03-18
FR1042737A (fr) 1953-11-03

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