ZA791823B - Device for use in tightening nuts - Google Patents

Device for use in tightening nuts

Info

Publication number
ZA791823B
ZA791823B ZA791823A ZA791823A ZA791823B ZA 791823 B ZA791823 B ZA 791823B ZA 791823 A ZA791823 A ZA 791823A ZA 791823 A ZA791823 A ZA 791823A ZA 791823 B ZA791823 B ZA 791823B
Authority
ZA
South Africa
Prior art keywords
tightening nuts
nuts
tightening
Prior art date
Application number
ZA791823A
Other languages
English (en)
Inventor
F Heaton
Original Assignee
Hydra Tight 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 Hydra Tight Ltd filed Critical Hydra Tight Ltd
Publication of ZA791823B publication Critical patent/ZA791823B/xx

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B29/00—Accessories
    • B25B29/02—Bolt tensioners
    • 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
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1423—Component parts; Constructional details
    • F15B15/1447—Pistons; Piston to piston rod assemblies
    • 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
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/04—Screwed connections specially modified in view of tensile load; Break-bolts for maintaining a tensile load
    • F16B31/043—Prestressed connections tensioned by means of liquid, grease, rubber, explosive charge, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Actuator (AREA)
  • Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Fluid-Damping Devices (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
ZA791823A 1978-04-18 1979-04-18 Device for use in tightening nuts ZA791823B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1530578 1978-04-18

Publications (1)

Publication Number Publication Date
ZA791823B true ZA791823B (en) 1980-08-27

Family

ID=10056731

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA791823A ZA791823B (en) 1978-04-18 1979-04-18 Device for use in tightening nuts

Country Status (17)

Country Link
US (1) US4249718A (pt)
EP (1) EP0005028B1 (pt)
JP (1) JPS556076A (pt)
AR (1) AR216981A1 (pt)
AU (1) AU536761B2 (pt)
BR (1) BR7902335A (pt)
CA (1) CA1101249A (pt)
DE (1) DE2961744D1 (pt)
DK (1) DK148499C (pt)
ES (1) ES479658A1 (pt)
FI (1) FI66557C (pt)
GR (1) GR64899B (pt)
IN (1) IN150679B (pt)
MX (1) MX146848A (pt)
NO (1) NO146528C (pt)
PT (1) PT69499A (pt)
ZA (1) ZA791823B (pt)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4438901A (en) * 1982-01-25 1984-03-27 Gripper, Inc. Apparatus for tensioning a stud and method of doing same
ATE108360T1 (de) * 1987-09-29 1994-07-15 John Wentworth Bucknell Krafterzeuger.
US6840726B2 (en) 2002-12-16 2005-01-11 Siemens Westinghouse Power Corporation Tensioning apparatus and method
US7066699B2 (en) * 2002-12-16 2006-06-27 Siemens Westinghouse Power Corporation Tensioning apparatus and method
US7673849B2 (en) * 2006-02-03 2010-03-09 Integra Technologies Limited Unibody hydraulic nut
JP4755676B2 (ja) * 2008-09-09 2011-08-24 東亜バルブエンジニアリング株式会社 流体圧ナット
KR101378045B1 (ko) * 2009-09-11 2014-03-27 에스엠시 가부시키가이샤 에어 실린더
CN103836051A (zh) * 2013-12-26 2014-06-04 安徽省阿姆达机床制造有限公司 用于万能轧机基座上的液压螺母
US9889529B2 (en) * 2015-05-01 2018-02-13 Riverhawk Company System and method for preloading tension in a stud using an anti-seizure spacer for tapered thread connections
FR3037139A1 (fr) * 2015-06-03 2016-12-09 Mz Intelligent Systems Procede de serrage et de controle du serrage de boulons d'assemblage par tendeur hydraulique a instrumentation integree avec mise en oeuvre par module electronique de traitement et de calcul
JP6315857B1 (ja) * 2017-01-11 2018-04-25 ダイハツディーゼル株式会社 フライホイールの締結構造
WO2021195409A1 (en) 2020-03-25 2021-09-30 Milwaukee Electric Tool Corporation Bolt tensioning tool
CN112855618A (zh) * 2021-01-12 2021-05-28 陈俏俏 一种高稳定隔离式的电动水泵

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2458976A (en) * 1944-04-04 1949-01-11 Rollin E Campbell Multiple power application device
US2571265A (en) * 1945-06-13 1951-10-16 Leufven Axel Gustav Edvard Hydraulic tensioning nut
DE961759C (de) * 1952-07-27 1957-04-11 Fritz Leonhardt Dr Ing Verfahren und Vorrichtung zum Verankern von Spannbetonbewehrungen
GB836779A (en) * 1955-04-07 1960-06-09 Arthur Lempriere Lancey Baker Method for stressing concrete ties and reinforcing members in concrete
GB991783A (en) * 1960-10-07 1965-05-12 P & O Pilgrim Valve Ltd Improvements in and relating to nuts and bolts
BE672274A (pt) * 1964-11-12
US3338552A (en) * 1965-04-23 1967-08-29 Christiani & Nielsen Ltd Hydraulic jacks and the like
US3301297A (en) * 1965-07-09 1967-01-31 Fine Blanking Ltd Lock nuts
GB1161593A (en) * 1965-08-04 1969-08-13 Cable Covers Ltd Tensioning Apparatus
GB1125176A (en) * 1966-03-31 1968-08-28 P S C Equipment Ltd A new or improved system for securing wires in a stressed condition
US3549275A (en) * 1968-11-14 1970-12-22 Waukesha Bearings Corp Ship's propeller securing and jacking means
DE2052788A1 (de) * 1970-09-26 1972-05-04 Löckmann & Sohn GmbH, 5000 Köln Hydraulische Spannmutter mit mechanischer Blockierung
DE7222127U (de) * 1972-06-14 1972-09-21 Loeckmann H Hydraulische schraubenmutter mit nachstellvorrichtung
US3938427A (en) * 1972-07-19 1976-02-17 Vulcan Iron Works, Inc. Percussion hammer
DE2455788A1 (de) * 1974-11-26 1976-08-12 Horst Schenk Hydraulisches spannelement fuer zugankervorspannung

Also Published As

Publication number Publication date
NO146528B (no) 1982-07-12
US4249718A (en) 1981-02-10
CA1101249A (en) 1981-05-19
AU4613679A (en) 1979-11-22
NO791272L (no) 1979-10-19
ES479658A1 (es) 1980-01-01
FI66557C (fi) 1984-11-12
PT69499A (en) 1979-05-01
NO146528C (no) 1982-10-20
MX146848A (es) 1982-08-25
FI791256A (fi) 1979-10-19
AU536761B2 (en) 1984-05-24
IN150679B (pt) 1982-11-20
BR7902335A (pt) 1979-10-23
DE2961744D1 (en) 1982-02-25
GR64899B (en) 1980-06-07
FI66557B (fi) 1984-07-31
JPS556076A (en) 1980-01-17
EP0005028A1 (en) 1979-10-31
EP0005028B1 (en) 1982-01-06
AR216981A1 (es) 1980-02-15
JPS6219606B2 (pt) 1987-04-30
DK148499C (da) 1985-12-23
DK156879A (da) 1979-10-19
DK148499B (da) 1985-07-22

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