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 divingInfo
- 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
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.
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)
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 |
-
1948
- 1948-05-28 GB GB1452048A patent/GB646883A/en not_active Expired
Cited By (5)
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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