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GB914563A - Improvements in or relating to railway draft gear - Google Patents

Improvements in or relating to railway draft gear

Info

Publication number
GB914563A
GB914563A GB42011/60A GB4201160A GB914563A GB 914563 A GB914563 A GB 914563A GB 42011/60 A GB42011/60 A GB 42011/60A GB 4201160 A GB4201160 A GB 4201160A GB 914563 A GB914563 A GB 914563A
Authority
GB
United Kingdom
Prior art keywords
container
piston
openings
opening
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
GB42011/60A
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.)
National Castings Co
Original Assignee
National Castings Co
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 National Castings Co filed Critical National Castings Co
Publication of GB914563A publication Critical patent/GB914563A/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
    • F16F9/32—Details
    • F16F9/48—Arrangements for providing different damping effects at different parts of the stroke
    • F16F9/486—Arrangements for providing different damping effects at different parts of the stroke comprising a pin or stem co-operating with an aperture, e.g. a cylinder-mounted stem co-operating with a hollow piston rod
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
    • B61G11/00—Buffers
    • B61G11/12—Buffers with fluid springs or shock-absorbers; Combinations thereof
    • 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
    • F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
    • F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
    • F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
    • F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
    • F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
    • 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
    • F16F9/32—Details
    • F16F9/48—Arrangements for providing different damping effects at different parts of the stroke

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

914,563. Hydraulic shock absorbers; railway vehicle draft and bung gear. NATIONAL CASTINGS-CO. Dec. 6, 1960 [Dec. 7, 1959], No. 42011/60. Classes 103(5) and 108(3). A hydraulic shock absorber for railway draft and buffing gear comprises an inner container 4 which is sealed at 17 within an outer reservoir container 2 and slidingly receives a hollow piston 6 having an end wall 28, and a fluid metering device 22 with a hollow tube 22a which extends, with a close fit, through an opening 30 in the end wall 28 and has the inner end of its opening 23 in communication with the reservoir 2. The tube 22a has a pair of longitudinal flutes 50 of varying cross-section formed in its sides so that, during a compression stroke, when a washer 34 slidable on the tube 22a closes openings 32 in the piston end wall 28, fluid in the container 4 is forced through orifices between the flutes 50 and the opening 30. The orifices become progessively smaller as the shock absorber closes with corresponding decreasing speed. During a rotaration stroke a compression spring 46, constrained between a shoulder 48a on a rear end closure plate 48 for the piston 6 and a shoulder 2a on the outer container 2, urges the piston 6 outwardly, the washer 34 being forced away from the openings 32 and into contact with a retaining ring 36 and fluid flowing rapidly through the openings 32 into the container 4. An oil sump 42 within the piston 6 provides lubrication for the cap member 38 of the metering device which has an oil ring 40. The cap member 38 has a projection 38a with radial openings 44 which communicate with the opening 23 in the tube 22a to allow compensation fluid to move in and out of the reservoir 8. Engagement of the cap member 38 respectively with a transverse wall 54 in the piston 6 and the end wall 28 limits the compression and retraction strokes of the shock absorber. The reservoir container 2, provided with a filling opening 12,. has reinforcing ribs 16 which engage the corresponding end of the container 4 and have fluid press openings 20.
GB42011/60A 1959-12-07 1960-12-06 Improvements in or relating to railway draft gear Expired GB914563A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US857615A US3033384A (en) 1959-12-07 1959-12-07 Hydraulic draft gear

Publications (1)

Publication Number Publication Date
GB914563A true GB914563A (en) 1963-01-02

Family

ID=25326369

Family Applications (1)

Application Number Title Priority Date Filing Date
GB42011/60A Expired GB914563A (en) 1959-12-07 1960-12-06 Improvements in or relating to railway draft gear

Country Status (6)

Country Link
US (1) US3033384A (en)
BE (1) BE597802A (en)
CH (1) CH364662A (en)
ES (1) ES263051A1 (en)
GB (1) GB914563A (en)
NL (2) NL109985C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4660687A (en) * 1985-01-11 1987-04-28 Oleo International Holding Limited Energy absorbers

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3128884A (en) * 1964-04-14 Long travel hydraulic cushion device
US3190630A (en) * 1961-12-08 1965-06-22 Houdaille Industries Inc Hydraulic buffer
US3155120A (en) * 1962-02-27 1964-11-03 Georgeana L Focht Hydraulic checking device for looms
US3139193A (en) * 1962-04-09 1964-06-30 Acf Ind Inc Long travel draft gear
US3164262A (en) * 1962-04-23 1965-01-05 Acf Ind Inc Long stroke draft gear with full draft hydraulic action
US3240355A (en) * 1963-10-21 1966-03-15 Ellis Fluid Dynamics Corp Hydraulic device
US3224599A (en) * 1963-11-29 1965-12-21 Pullman Inc Long travel hydraulic cushion device
US3215283A (en) * 1964-03-18 1965-11-02 Pullman Inc Long travel hydraulic cushion device
US3249240A (en) * 1964-04-21 1966-05-03 Kenneth G Empson Draft gear
US3237574A (en) * 1964-09-10 1966-03-01 Keystone Railway Equip Impact absorbing apparatus
US3332364A (en) * 1964-09-10 1967-07-25 Keystone Railway Equip Impact absorbing apparatus
CH427576A (en) * 1965-07-29 1966-12-31 Oerlikon Buehrle Holding Ag Automatic firearm with a retractable bolt housing on a carrier
US3397798A (en) * 1966-02-23 1968-08-20 Miner Inc W H Coupler device
US3489295A (en) * 1967-07-11 1970-01-13 Cleveland Pneumatic Tool Co Draft gear for railroad car
JPS5216555B2 (en) * 1972-09-29 1977-05-10
US5025938A (en) * 1989-12-13 1991-06-25 Fm Industries, Inc. Rail car cushion slider valve
US5779007A (en) * 1996-07-22 1998-07-14 Trw Inc. Shock absorber with hydraulic fluid control rod
ES2380106T3 (en) * 2009-10-01 2012-05-08 Voith Patent Gmbh Device for damping tensile and compression forces
CN110657188A (en) * 2018-06-06 2020-01-07 杨华 One-way damper
CN108547907B (en) * 2018-07-09 2020-02-07 西格迈股份有限公司 Shock absorber for electric automobile
CN108791138B (en) * 2018-07-09 2019-12-17 南京自强铁路车辆配件有限公司 Method for improving running stability of automobile

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US770537A (en) * 1904-09-20 Best available cop
US782964A (en) * 1903-10-07 1905-02-21 Anthony Gref Cushioning draft-gear.
US770128A (en) * 1904-05-28 1904-09-13 Benjamin Franklin Teal Pneumatic vehicle-spring.
US1378281A (en) * 1916-03-21 1921-05-17 Edward E Ross Resilient device
GB713242A (en) * 1949-11-04 1954-08-11 Arthur Percy Fitzjohn Improvements in and relating to hydraulic buffers and draw-gear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4660687A (en) * 1985-01-11 1987-04-28 Oleo International Holding Limited Energy absorbers

Also Published As

Publication number Publication date
US3033384A (en) 1962-05-08
NL109985C (en)
ES263051A1 (en) 1961-03-16
BE597802A (en) 1961-06-05
CH364662A (en) 1962-09-30
NL258769A (en)

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