GB2141204B - Extensible spring strut - Google Patents

Extensible spring strut

Info

Publication number
GB2141204B
GB2141204B GB8313949A GB8313949A GB2141204B GB 2141204 B GB2141204 B GB 2141204B GB 8313949 A GB8313949 A GB 8313949A GB 8313949 A GB8313949 A GB 8313949A GB 2141204 B GB2141204 B GB 2141204B
Authority
GB
United Kingdom
Prior art keywords
spring strut
extensible spring
extensible
strut
spring
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
GB8313949A
Other versions
GB2141204A (en
GB8313949D0 (en
Inventor
Lionel Vivian Frank Russell
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.)
VINTEN Ltd
W Vinten Ltd
Original Assignee
VINTEN Ltd
W Vinten 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 VINTEN Ltd, W Vinten Ltd filed Critical VINTEN Ltd
Priority to GB8313949A priority Critical patent/GB2141204B/en
Publication of GB8313949D0 publication Critical patent/GB8313949D0/en
Priority to DE19843417759 priority patent/DE3417759A1/en
Priority to FR8407557A priority patent/FR2546268A1/en
Publication of GB2141204A publication Critical patent/GB2141204A/en
Application granted granted Critical
Publication of GB2141204B publication Critical patent/GB2141204B/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
    • F16F9/02—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using gas only or vacuum
    • 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
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
    • F16F1/46—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing loaded mainly in tension
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/242—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by spreading of the legs
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/32—Undercarriages for supports with three or more telescoping legs
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/32—Undercarriages for supports with three or more telescoping legs
    • F16M11/34—Members limiting spreading of legs, e.g. "umbrella legs"
    • 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
    • F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
    • F16F2236/06—Tension
    • 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
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M2200/00—Details of stands or supports
    • F16M2200/04—Balancing means
    • F16M2200/044—Balancing means for balancing rotational movement of the undercarriage

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Accessories Of Cameras (AREA)
  • Mutual Connection Of Rods And Tubes (AREA)
GB8313949A 1983-05-20 1983-05-20 Extensible spring strut Expired GB2141204B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB8313949A GB2141204B (en) 1983-05-20 1983-05-20 Extensible spring strut
DE19843417759 DE3417759A1 (en) 1983-05-20 1984-05-12 TENSIONING STRUTS FOR TRIPOD LEGS OR THE LIKE
FR8407557A FR2546268A1 (en) 1983-05-20 1984-05-16 IMPROVEMENTS IN SPACERS WORKING IN TENSION, ESPECIALLY FOR SHORT-SIDED LEG TRIPODS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8313949A GB2141204B (en) 1983-05-20 1983-05-20 Extensible spring strut

Publications (3)

Publication Number Publication Date
GB8313949D0 GB8313949D0 (en) 1983-06-29
GB2141204A GB2141204A (en) 1984-12-12
GB2141204B true GB2141204B (en) 1987-02-11

Family

ID=10543073

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8313949A Expired GB2141204B (en) 1983-05-20 1983-05-20 Extensible spring strut

Country Status (3)

Country Link
DE (1) DE3417759A1 (en)
FR (1) FR2546268A1 (en)
GB (1) GB2141204B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE78447C (en) * — langer & CO., Wien III, Hauptstr. 24 Tripod with multi-part legs
US2213810A (en) * 1936-04-27 1940-09-03 Ch Faure Roux Ets Shock absorber
FR1388127A (en) * 1964-01-08 1965-02-05 Constant return damping brake
US3722847A (en) * 1972-03-01 1973-03-27 Connor C O Instrument support structure
GB1530332A (en) * 1976-03-13 1978-10-25 Vinten Ltd Balanced portable pedestals
DE3026533A1 (en) * 1980-07-12 1982-02-04 Abeg Apparatebau und Elektroanlagen GmbH, 8011 Kirchseeon Height adjustment for searchlight tripod - has telescopic tubes with ends closed by discs with throttling holes to control speed of extension

Also Published As

Publication number Publication date
GB2141204A (en) 1984-12-12
DE3417759A1 (en) 1984-11-22
FR2546268A1 (en) 1984-11-23
GB8313949D0 (en) 1983-06-29

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee