GB1161593A - Tensioning Apparatus - Google Patents
Tensioning ApparatusInfo
- Publication number
- GB1161593A GB1161593A GB3326865A GB3326865A GB1161593A GB 1161593 A GB1161593 A GB 1161593A GB 3326865 A GB3326865 A GB 3326865A GB 3326865 A GB3326865 A GB 3326865A GB 1161593 A GB1161593 A GB 1161593A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tendon
- load
- tube
- inner tube
- devices
- 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
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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
1,161,593. Tensioning devices. CABLE COVERS Ltd. 31 Oct., 1966 [4 Aug., 1965], No. 33268/65. Heading F2G. An hydraulic or pneumatic jack for stressing wires, tendons or other elongate members comprising an outer tube 2, an inner tube 4, and an intermediate piston tube 5, is provided with an electrical, mechanical, or combination of electrical and mechanical load-measuring device or devices of the compression type 60 to signify the load applied to the tendon or member being stressed, said device or devices being operatively positioned between the outer tube end and a load-bearing member secured directly or indirectly to the inner tube. As shown, the loadmeasuring device is tubular and is carried on a tubular extension 58 screwed to the inner tube, a nut 62, or alternatively a flange, being provided on said extension to act as a load-bearing member. In operation, the tendon or member being stressed (not shown), is entered into the front of the jack with attendant barrels and wedges (not shown) being positioned in a recess 20 formed in a nozzle body 16 secured to the piston tube, said nozzle bearing against a bearing plate of the member to the prestressed by the tendon. Pressure fluid is admitted to a port 70 and outer tube is moved to the right producing a corresponding movement of the inner tube to the right by transmission of the load through the load measuring device 60, nut 62 and extension tube 58. An annular wedge ring 26 carried by the inner tube forces a serrated wedge member 24 to grip the tendon. Further pressure is applied until the desired tensioning of the tendon as signified by the load-measuring device or devices is achieved. Pressure fluid is then admitted to channels 76, 78 to move a locking plunger 38 forwardly to urge the barrels and wedges of the tendon into locking engagement with the bearing plate thereby holding the tendon in the stressed condition. Fluid pressure is then admitted to the other side of the piston to release the wedge 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3326865A GB1161593A (en) | 1965-08-04 | 1965-08-04 | Tensioning Apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3326865A GB1161593A (en) | 1965-08-04 | 1965-08-04 | Tensioning Apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1161593A true GB1161593A (en) | 1969-08-13 |
Family
ID=10350734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3326865A Expired GB1161593A (en) | 1965-08-04 | 1965-08-04 | Tensioning Apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1161593A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0005028A1 (en) * | 1978-04-18 | 1979-10-31 | Hydra-Tight Limited | Bolt tensioning device |
| GB2156465A (en) * | 1984-02-16 | 1985-10-09 | Bygg Och Transportekonomie Ab | Tensioning device |
| CN115262981A (en) * | 2022-08-16 | 2022-11-01 | 中铁十五局集团有限公司 | Intelligent prestress tensioning construction device for house construction project |
-
1965
- 1965-08-04 GB GB3326865A patent/GB1161593A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0005028A1 (en) * | 1978-04-18 | 1979-10-31 | Hydra-Tight Limited | Bolt tensioning device |
| GB2156465A (en) * | 1984-02-16 | 1985-10-09 | Bygg Och Transportekonomie Ab | Tensioning device |
| CN115262981A (en) * | 2022-08-16 | 2022-11-01 | 中铁十五局集团有限公司 | Intelligent prestress tensioning construction device for house construction project |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES424907A1 (en) | Ram tensioning device | |
| GB1220706A (en) | Hydraulic tie rod nut | |
| GB1212309A (en) | Hydraulic jack for tensioning rods or wires in pre-stressed concrete structures | |
| GB1161593A (en) | Tensioning Apparatus | |
| GB1026419A (en) | Improvements in hydraulic pis ton and cylinder combinations | |
| US3554492A (en) | Apparatus for drawing an anchor head on a rod or a tight cable | |
| FR2271925A1 (en) | Press table and ram spacing adjuster - with simplified threaded connection requiring reduced force | |
| GB711449A (en) | Reinforced concrete constructions utilizing jointed reinforcement under tension | |
| GB1123233A (en) | Improvements in and relating to hydraulic jacks | |
| GB1375203A (en) | ||
| GB1321398A (en) | Device for tensioning a bolt and tightening a nut on the bolt while the bolt is in tension | |
| GB1515353A (en) | Measuring devices | |
| GB1066512A (en) | Press for bending sheets | |
| GB1169066A (en) | Press | |
| GB809553A (en) | An overload safety device for presses | |
| US2705416A (en) | Hydraulic torque generators | |
| GB1258369A (en) | ||
| GB1198375A (en) | Improvements in or relating to a Jack for Drawing an Anchoring Member on a Cable | |
| GB1179872A (en) | Improvements in and relating to Presses | |
| GB792879A (en) | An extrusion press with means for securing a press ram to a press plunger | |
| SU1159672A2 (en) | Apparatus for hydraulic extrusion with backpressure | |
| GB893403A (en) | Improvements in or relating to methods and apparatus for the production of anchoringheads on a stretched or unstretched cable, or on a bar | |
| GB772858A (en) | Method and hydraulic jack for pretensioning the reinforcing of a prestressed concrete structure | |
| GB1340406A (en) | Metal-working presses | |
| GB962938A (en) | Improvements in or relating to a puller device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |