GB1402655A - Hydraulic jack - Google Patents

Hydraulic jack

Info

Publication number
GB1402655A
GB1402655A GB4264972A GB4264972A GB1402655A GB 1402655 A GB1402655 A GB 1402655A GB 4264972 A GB4264972 A GB 4264972A GB 4264972 A GB4264972 A GB 4264972A GB 1402655 A GB1402655 A GB 1402655A
Authority
GB
United Kingdom
Prior art keywords
wires
plate
wedges
sleeves
cylinder
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
GB4264972A
Other languages
English (en)
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.)
Manufacturas de Acero y Caucho SA
Original Assignee
Manufacturas de Acero y Caucho SA
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 Manufacturas de Acero y Caucho SA filed Critical Manufacturas de Acero y Caucho SA
Publication of GB1402655A publication Critical patent/GB1402655A/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
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/12—Connections or attachments, e.g. turnbuckles, adapted for straining of cables, ropes, or wire
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/12—Mounting of reinforcing inserts; Prestressing
    • E04G21/121—Construction of stressing jacks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
    • F15B11/028—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force
    • F15B11/036—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the actuating force by means of servomotors having a plurality of working chambers
    • F15B11/0365—Tandem constructions
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/49874—Prestressing rod, filament or strand

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Bridges Or Land Bridges (AREA)
  • Piles And Underground Anchors (AREA)
  • Portable Nailing Machines And Staplers (AREA)
GB4264972A 1971-09-14 1972-09-14 Hydraulic jack Expired GB1402655A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES1971172706U ES172706Y (es) 1971-09-14 1971-09-14 Cilindro hidraulico para traccionar varillas de construc- cion.

Publications (1)

Publication Number Publication Date
GB1402655A true GB1402655A (en) 1975-08-13

Family

ID=8347794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4264972A Expired GB1402655A (en) 1971-09-14 1972-09-14 Hydraulic jack

Country Status (13)

Country Link
US (1) US3844023A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS5221783B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) AT322803B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AU (1) AU476924B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
BE (1) BE788294A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA981429A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CH (1) CH560827A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2244115A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES172706Y (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2152557B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1402655A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
IT (1) IT967431B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
NL (1) NL7212092A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106752A (en) * 1976-05-04 1978-08-15 Buildinter Ag Jack for stressing concrete re-inforcement elements
GB2136073A (en) * 1983-03-01 1984-09-12 Stronghold International Aktie Hydraulic Jack for Stressing Elongate Elements
US4573662A (en) * 1984-04-03 1986-03-04 Stronghold International Ag Hydraulic jack for stressing elongate elements
GB2261482A (en) * 1991-11-12 1993-05-19 Pilgrim Eng Dev Rod tensioning

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2502984A1 (de) * 1974-01-30 1975-07-31 Ahlgren Nils H Schwerlast-hebezeug
GB1527601A (en) * 1974-12-10 1978-10-04 Buildinter Ag Jack for stressing and anchoring tendons
FR2300873A1 (fr) * 1975-02-15 1976-09-10 Dyckerhoff & Widmann Ag Dispositif pour tendre et detendre des faisceaux de fers de contrainte pour beton pre-contraint
CH597470A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1976-07-02 1978-04-14 Bureau Bbr Ltd
CH618491A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1977-02-11 1980-07-31 Losinger Ag
US4274618A (en) * 1979-08-20 1981-06-23 Orr James A Strand lifting system
IT1135752B (it) * 1981-04-17 1986-08-27 Nuovo Pignone Spa Perfezionamenti nello stadio di potenza di una turbina a gas
FR2518302A1 (fr) * 1981-12-14 1983-06-17 Commissariat Energie Atomique Procede de fabrication d'un assemblage combustible de reacteur nucleaire du type a eau legere et outillage pour la mise en oeuvre du procede
US4604003A (en) * 1983-02-22 1986-08-05 Francoeur Ronald A Method and apparatus for retensioning prestressed concrete members
SU1404693A1 (ru) * 1984-04-24 1988-06-23 Управление "Спецшахтомонтаж" Производственного Объединения По Добыче Угля "Карагандауголь" Гидравлический шаговый привод
DE3437108A1 (de) * 1984-10-10 1986-04-10 Dyckerhoff & Widmann AG, 8000 München Vorrichtung zur verwendung bei der montage eines zuggliedes aus stahldraehten, -litzen oder dergleichen
FR2589536B1 (fr) * 1985-11-04 1988-07-08 Framatome Sa Dispositif de tension pour le serrage et le desserrage de boulons ou goujons
US4862576A (en) * 1988-08-30 1989-09-05 Lu Hsi H Method for restressing and locking HHL anchor
US5289626A (en) * 1989-03-27 1994-03-01 Kajima Corporation Foundation anchor and method for securing same to a foundation
KR20020045899A (ko) * 2000-12-11 2002-06-20 창 훈 이 해체가능한 가설지반 앵커체 및 인장재 해체공법
US6684585B2 (en) * 2001-05-30 2004-02-03 Robert Campbell Method and apparatus for providing a visual indication of the tension applied to a tendon of a post-tension system
DE102005010957A1 (de) * 2005-03-10 2006-09-14 Dywidag-Systems International Gmbh Verfahren und Anordnung zum Spannen eines Stufenankers
US9103131B2 (en) * 2009-12-24 2015-08-11 Vsl International Ag Method and system for equally tensioning multiple strands
CN101774515B (zh) * 2010-01-15 2012-04-25 孟建 单向不间歇牵引机构
US9930828B1 (en) * 2015-06-04 2018-04-03 Debra Kornegay Self-cleaning rake
CN105110232A (zh) * 2015-09-06 2015-12-02 四川泸州派克斯液压机械有限公司 前卡式穿心千斤顶
CN110409301A (zh) * 2019-08-16 2019-11-05 苏德永 一种冷铸锚墩头锚板安装工装及方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3096075A (en) * 1960-12-09 1963-07-02 Brown Oil Tools Hydraulic pipe snubber for oil wells
US3176961A (en) * 1962-03-05 1965-04-06 John P Glass Hydraulic jack apparatus
FR1597937A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1968-05-28 1970-06-29
US3597830A (en) * 1968-11-29 1971-08-10 Lawrence R Yegge Method and apparatus for post tensioning and anchoring prestressing tendons

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4106752A (en) * 1976-05-04 1978-08-15 Buildinter Ag Jack for stressing concrete re-inforcement elements
GB2136073A (en) * 1983-03-01 1984-09-12 Stronghold International Aktie Hydraulic Jack for Stressing Elongate Elements
US4573662A (en) * 1984-04-03 1986-03-04 Stronghold International Ag Hydraulic jack for stressing elongate elements
GB2261482A (en) * 1991-11-12 1993-05-19 Pilgrim Eng Dev Rod tensioning
GB2261482B (en) * 1991-11-12 1995-02-15 Pilgrim Eng Dev Rod tensioning

Also Published As

Publication number Publication date
JPS4836845A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-05-31
ES172706U (es) 1972-02-16
IT967431B (it) 1974-02-28
US3844023A (en) 1974-10-29
AU476924B2 (en) 1976-10-07
NL7212092A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-03-16
ES172706Y (es) 1972-08-16
AT322803B (de) 1975-06-10
FR2152557A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1973-04-27
DE2244115A1 (de) 1973-03-15
JPS5221783B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1977-06-13
AU4642772A (en) 1974-03-14
BE788294A (fr) 1973-01-02
FR2152557B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-03-07
CA981429A (en) 1976-01-13
CH560827A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1975-04-15

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Legal Events

Date Code Title Description
414F Notice of opposition given (sect. 14/1949)
414B Case decided by the comptroller ** grants allowed (sect. 14/1949)
49R Reference inserted (sect. 9/1949)
PS Patent sealed [section 19, patents act 1949]
SP Amendment (slips) printed
PCNP Patent ceased through non-payment of renewal fee