GB646883A - Improvements in or relating to movable fulcrums for spring boards, such as spring boards used for diving - Google Patents

Improvements in or relating to movable fulcrums for spring boards, such as spring boards used for diving

Info

Publication number
GB646883A
GB646883A GB1452048A GB1452048A GB646883A GB 646883 A GB646883 A GB 646883A GB 1452048 A GB1452048 A GB 1452048A GB 1452048 A GB1452048 A GB 1452048A GB 646883 A GB646883 A GB 646883A
Authority
GB
United Kingdom
Prior art keywords
fulcrum
spring
valve
spring boards
grose
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
GB1452048A
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.)
GEORGE GROSE Ltd
GEORGE PACK GROSE
Original Assignee
GEORGE GROSE Ltd
GEORGE PACK GROSE
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 GEORGE GROSE Ltd, GEORGE PACK GROSE filed Critical GEORGE GROSE Ltd
Priority to GB1452048A priority Critical patent/GB646883A/en
Publication of GB646883A publication Critical patent/GB646883A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
    • A63B5/00—Apparatus for jumping
    • A63B5/08—Spring-boards
    • A63B5/10—Spring-boards for aquatic sports

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Road Paving Machines (AREA)
  • Actuator (AREA)

Abstract

646,883. Spring boards. GROSE, Ltd., G., and GROSE, G. P. May 28, 1948, No. 14520. [Class 132 (i)] The fulcrum of a spring board is advanced or retracted by a double acting hydraulic jack to one end or the other of which a suitable liquid such as oil may be supplied under pressure. The spring board a is supported by a fulcrum comprising a rubber covered steel shaft b mounted in ball bearings in two carriages f united by a yoke k connected to the piston rod m of a double acting hydraulic cylinder n Guiding rods a pass through these carriages f which slide on bases g. The ends of the cylinder are connected to a pedal operated pump through a two way manually operated valve so that operation of the pedal moves the fulcrum, backwards or forwards depending on the setting of the valve, for a predetermined distance. The valve may be set in a neutral position preventing the flow of oil either way.
GB1452048A 1948-05-28 1948-05-28 Improvements in or relating to movable fulcrums for spring boards, such as spring boards used for diving Expired GB646883A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1452048A GB646883A (en) 1948-05-28 1948-05-28 Improvements in or relating to movable fulcrums for spring boards, such as spring boards used for diving

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1452048A GB646883A (en) 1948-05-28 1948-05-28 Improvements in or relating to movable fulcrums for spring boards, such as spring boards used for diving

Publications (1)

Publication Number Publication Date
GB646883A true GB646883A (en) 1950-11-29

Family

ID=10042682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1452048A Expired GB646883A (en) 1948-05-28 1948-05-28 Improvements in or relating to movable fulcrums for spring boards, such as spring boards used for diving

Country Status (1)

Country Link
GB (1) GB646883A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3372927A (en) * 1965-09-24 1968-03-12 Raymond C. Rude Movable fulcrum for springboards
WO2019071173A1 (en) 2017-10-06 2019-04-11 Duraflex International Corp. Diving board stand

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3372927A (en) * 1965-09-24 1968-03-12 Raymond C. Rude Movable fulcrum for springboards
WO2019071173A1 (en) 2017-10-06 2019-04-11 Duraflex International Corp. Diving board stand
JP2020536710A (en) * 2017-10-06 2020-12-17 デュラフレックス インターナショナル コーポレーションＤｕｒａｆｌｅｘ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｃｏｒｐ． Flying board stand
EP3691757A4 (en) * 2017-10-06 2021-06-23 Duraflex International Corp. Diving board stand
US11318339B2 (en) 2017-10-06 2022-05-03 Duraflex International Corp. Diving board stand

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