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FR2226855A5 - Tension-head for tightening concrete reinforcements - consists of a mobile trimmer and double acting hydraulic jacks - Google Patents

Tension-head for tightening concrete reinforcements - consists of a mobile trimmer and double acting hydraulic jacks

Info

Publication number
FR2226855A5
FR2226855A5 FR7314220A FR7314220A FR2226855A5 FR 2226855 A5 FR2226855 A5 FR 2226855A5 FR 7314220 A FR7314220 A FR 7314220A FR 7314220 A FR7314220 A FR 7314220A FR 2226855 A5 FR2226855 A5 FR 2226855A5
Authority
FR
France
Prior art keywords
trimmer
tension
head
double acting
acting hydraulic
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
FR7314220A
Other languages
French (fr)
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.)
SARET
Original Assignee
SARET
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 SARET filed Critical SARET
Priority to FR7314220A priority Critical patent/FR2226855A5/en
Application granted granted Critical
Publication of FR2226855A5 publication Critical patent/FR2226855A5/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
    • B28B23/04—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members the elements being stressed
    • B28B23/043—Wire anchoring or tensioning means for the reinforcements

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Working Measures On Existing Buildindgs (AREA)

Abstract

One of the ends of the reinforcement being pulled is fixed onto a mobile trimmer box. The hydraulic device consists of two double-acting jacks, one of which is directly connected to the fluid source, and the other is connected to it by means of an intermediate constant volume cylinder and piston. The hydraulic device exerts on the trimmer a translation movement perpendicular to its lengthwise direction, as a result of the automatic and permanent balancing of two forces applied to it. The jacks and the cylinder-piston device are connected to the fluid source by a distributor with slide-valve. A screw and nut arrangement for each jack keeps the reinforcement taut, after the force exerted on the trimmer has been released.
FR7314220A 1973-04-18 1973-04-18 Tension-head for tightening concrete reinforcements - consists of a mobile trimmer and double acting hydraulic jacks Expired FR2226855A5 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7314220A FR2226855A5 (en) 1973-04-18 1973-04-18 Tension-head for tightening concrete reinforcements - consists of a mobile trimmer and double acting hydraulic jacks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7314220A FR2226855A5 (en) 1973-04-18 1973-04-18 Tension-head for tightening concrete reinforcements - consists of a mobile trimmer and double acting hydraulic jacks

Publications (1)

Publication Number Publication Date
FR2226855A5 true FR2226855A5 (en) 1974-11-15

Family

ID=9118208

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7314220A Expired FR2226855A5 (en) 1973-04-18 1973-04-18 Tension-head for tightening concrete reinforcements - consists of a mobile trimmer and double acting hydraulic jacks

Country Status (1)

Country Link
FR (1) FR2226855A5 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2432594A1 (en) * 1978-08-04 1980-02-29 Applic Ceramiques Et Pretensioning of wires for factory made prestressed concrete beams - uses jacking slide in pit to treat all wires of several lines simultaneously
WO2016198720A1 (en) * 2015-06-09 2016-12-15 Pacadar S.A. Method and tooling for manufacturing prestressed concrete members by molding

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2432594A1 (en) * 1978-08-04 1980-02-29 Applic Ceramiques Et Pretensioning of wires for factory made prestressed concrete beams - uses jacking slide in pit to treat all wires of several lines simultaneously
WO2016198720A1 (en) * 2015-06-09 2016-12-15 Pacadar S.A. Method and tooling for manufacturing prestressed concrete members by molding

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