GB1380717A - Swimming aids - Google Patents

Swimming aids

Info

Publication number
GB1380717A
GB1380717A GB3642374A GB3642374A GB1380717A GB 1380717 A GB1380717 A GB 1380717A GB 3642374 A GB3642374 A GB 3642374A GB 3642374 A GB3642374 A GB 3642374A GB 1380717 A GB1380717 A GB 1380717A
Authority
GB
United Kingdom
Prior art keywords
swimmer
dec
vanes
rope
forward end
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
GB3642374A
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.)
Individual
Original Assignee
Individual
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
Priority claimed from JP45109943A external-priority patent/JPS5018999B1/ja
Priority claimed from JP45127919A external-priority patent/JPS5019840B1/ja
Application filed by Individual filed Critical Individual
Publication of GB1380717A publication Critical patent/GB1380717A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D33/00—Non-positive-displacement pumps with other than pure rotation, e.g. of oscillating type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C9/00—Life-saving in water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H11/00—Marine propulsion by water jets
    • B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
    • B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
    • B63H11/06—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of reciprocating type

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Wind Motors (AREA)

Abstract

1380717 Propelling swimmers J OHNAKA 10 Dec 1971 [10 Dec 1970 25 Dec 1970 30 Dec 1970] 36423/74 Divided out of 1380716 Heading B7V A propulsion mechanism for wear by a swimmer in the water comprises a pair of fixed parallel vanes 201, 202 carried by a forward and a rearward bracket 203, 204 securable to the chest of the swimmer, and a movable vane 206 positioned between the fixed vanes with a pair of bellows 211, 212 connecting the vanes, a rope 208 being secured to the movable vane 206 nearer the forward end thereof, and passing through the fixed vanes 201, 202 and over pulleys with the ends of the rope 208 looped to receive the swimmer's feet. Stiff plates 213, 214 interconnect the bellows 211, 212 to prevent collapse thereof and in use as the swimmer extends his legs alternately, the movable vane 206 is drawn from side to side between the fixed vanes 201, 202, the leading edge of the vane 206 moving in advance of its trailing edge as a result of the connection of the rope 208 to a point nearer the forward end thereof so that water is drawn in at the forward end of the mechanism and expelled to the rear, thus propelling the swimmer through the water.
GB3642374A 1970-12-10 1971-12-10 Swimming aids Expired GB1380717A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP45109943A JPS5018999B1 (en) 1970-12-10 1970-12-10
JP12891270 1970-12-25
JP45127919A JPS5019840B1 (en) 1970-12-30 1970-12-30

Publications (1)

Publication Number Publication Date
GB1380717A true GB1380717A (en) 1975-01-15

Family

ID=27311602

Family Applications (2)

Application Number Title Priority Date Filing Date
GB5761271A Expired GB1380716A (en) 1970-12-10 1971-12-10 Apparatus for propulsion through fluid and or extracting energy from a flowing fluid
GB3642374A Expired GB1380717A (en) 1970-12-10 1971-12-10 Swimming aids

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB5761271A Expired GB1380716A (en) 1970-12-10 1971-12-10 Apparatus for propulsion through fluid and or extracting energy from a flowing fluid

Country Status (1)

Country Link
GB (2) GB1380716A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2729873A1 (en) * 1977-07-01 1979-01-04 Franz Stummer DEVICE FOR CONVERTING ENERGY FROM A CURRENT OR THE RUNNING MOVEMENT OF A RIVER-CAPABLE MEDIUM INTO MECHANICAL MOVEMENT
GB2131489A (en) * 1982-12-08 1984-06-20 William Richmond Dickens Obtaining useful energy from a flowing stream

Also Published As

Publication number Publication date
GB1380716A (en) 1975-01-15

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PCNP Patent ceased through non-payment of renewal fee