GB1339762A - Shock transmission units - Google Patents

Shock transmission units

Info

Publication number
GB1339762A
GB1339762A GB1339762DA GB1339762A GB 1339762 A GB1339762 A GB 1339762A GB 1339762D A GB1339762D A GB 1339762DA GB 1339762 A GB1339762 A GB 1339762A
Authority
GB
United Kingdom
Prior art keywords
piston
bridge
cylinder
impulsive
fluid
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
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.)
GB SEC OF STATE ENVIRONMENT
Original Assignee
GB SEC OF STATE ENVIRONMENT
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 GB SEC OF STATE ENVIRONMENT filed Critical GB SEC OF STATE ENVIRONMENT
Publication of GB1339762A publication Critical patent/GB1339762A/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
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
    • F16F9/30—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium
    • F16F9/303—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium with solid or semi-solid material, e.g. pasty masses, as damping medium the damper being of the telescopic type
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
    • F16L3/18—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in axial direction

Abstract

1339762 Bridges; expansion joint accessories ENVIROMENT SECRETARY OF STATE FOR 19 April 1971 [19 March 1970] 13198/70 Headings E1B and E1G [Also in Division F2] A piston-cylinder unit, for a bridge, which yields to a steady force (e.g. that due to expansion with temperature) but resists and transmits an impulsive force (e.g. that due to vehicles braking on the bridge) comprises a cylinder 1, a piston rod 9 which extends right through the cylinder, a piston 9c, 9d which is a loose fit in the cylinder, and a viscoelastic fluid of the type capable of slow deformation but highly resistant to impulsive stress (bouncing putty). The unit is incorporated in expansion joints 22, 23 connecting cantilevered spans 19, 20, 21 of the bridge which are supported for horizontal movement on columns 16, 17, 18, so that the piston 9c, 9d of each unit is displaced through the fluid by the steady forces due to thermal changes but the impulsive horizontal forces caused by the braking and accelerating of vehicles on the bridge are resisted and transmitted by the fluid across the spans to end buttresses without substantial movement of the piston.
GB1339762D 1970-03-19 1971-04-19 Shock transmission units Expired GB1339762A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1319870 1970-03-19

Publications (1)

Publication Number Publication Date
GB1339762A true GB1339762A (en) 1973-12-05

Family

ID=10018626

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1339762D Expired GB1339762A (en) 1970-03-19 1971-04-19 Shock transmission units

Country Status (3)

Country Link
DE (1) DE2113006A1 (en)
FR (1) FR2084849A5 (en)
GB (1) GB1339762A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182441A (en) * 1977-03-11 1980-01-08 Lagrou Donald J Pipe snubber including reservoir and seal structure
GB2263526A (en) * 1992-01-21 1993-07-28 Colebrand Ltd A shock absorber
GB2288839A (en) * 1994-04-29 1995-11-01 Colebrand Ltd Bridge with shock transmission unit

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU4105578A (en) * 1977-11-07 1980-05-01 Basf Ag Tape transport mechanism
FR2549114A1 (en) * 1983-07-13 1985-01-18 Vibrachoc Sa ENERGY ABSORPTION DEVICE, PARTICULARLY FOR BRIDGES
JP2615397B2 (en) * 1991-11-07 1997-05-28 建設省土木研究所長 Variable damper device for bridges

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4182441A (en) * 1977-03-11 1980-01-08 Lagrou Donald J Pipe snubber including reservoir and seal structure
GB2263526A (en) * 1992-01-21 1993-07-28 Colebrand Ltd A shock absorber
GB2288839A (en) * 1994-04-29 1995-11-01 Colebrand Ltd Bridge with shock transmission unit
US5553342A (en) * 1994-04-29 1996-09-10 Colebrand Limited Bridge structure including shock transmission units
GB2288839B (en) * 1994-04-29 1997-06-18 Colebrand Ltd Bridge

Also Published As

Publication number Publication date
DE2113006A1 (en) 1971-10-21
FR2084849A5 (en) 1971-12-17

Similar Documents

Publication Publication Date Title
GB1339762A (en) Shock transmission units
FR2269023B1 (en)
GB1358995A (en) Ejector release units
GB1353616A (en) Bridges
BR8100049A (en) ARTICULATION FOR ARTICULATED VEHICLE
SE7602663L (en) DEVICE FOR FIXING LOADS SUSPENDED ON AIRCRAFT
GB898268A (en) Improvements relating to big-ends for connecting rods
US2368907A (en) Suspension bridge
GB1525221A (en) Longitudinally displaceable connection for cantilevered beam-type structural parts
GB1173914A (en) Force Transducers
GB1221530A (en) A mould assembly for a continuous casting plant
ES460997A1 (en) Light metal piston
SU147823A1 (en) One-component aerodynamic scales
GB599948A (en) Improvements in temperature change compensating devices for hydraulic systems
SU941724A2 (en) Flexible compensating hinge
BR7501048A (en) IMPROVEMENT IN HYDRAULIC SHOCK ABSORBER JOINT PISTON AND PISTON ROD IN COMBINATION PROCESS FOR ASSEMBLY OF A PISTON AND PISTON ROD AND APPLIANCE FOR ASSEMBLING A PISTON TO AN ASSOCIATED PISTON ROD
NL7705538A (en) Force measuring instrument with interconnected piston and cylinder - uses measuring for which is known fraction of balancing force acting on one piston
GB825464A (en) Improvements relating to pipe expansion compensators
ES539810A0 (en) CONNECTING ROD MOLDED BY CASTING, IN PARTICULAR TO JOIN A PISTON WITH MOVEMENT IN MOVEMENT WITH THE TONGUE OF A CRANKSHAFT TURNTABLE
GRELLIER et al. The interferometric study of transient planar problems
ES384963A1 (en) Stabilization system for articulated trains. (Machine-translation by Google Translate, not legally binding)
SU479977A1 (en) Flight stand with movable cabin
GB577003A (en) Improvements in or relating to temperature expansion compensators for closed hydraulic systems
IT1032041B (en) PISTON AND CYLINOR HYDRAULIC DEVICE FOR THE REGULATION OF THE RELATIVE ANGULAR POSITION OF TWO PARTS CONNECTED TO THE JOINT
Hancock Matrix force analysis of torsion in thin-walled structures

Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years