GB1493190A - Rate of ascent guide apparatus for underwater divers - Google Patents

Rate of ascent guide apparatus for underwater divers

Info

Publication number
GB1493190A
GB1493190A GB18041/75A GB1804175A GB1493190A GB 1493190 A GB1493190 A GB 1493190A GB 18041/75 A GB18041/75 A GB 18041/75A GB 1804175 A GB1804175 A GB 1804175A GB 1493190 A GB1493190 A GB 1493190A
Authority
GB
United Kingdom
Prior art keywords
depth
timer
rate
depth meter
meter
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
GB18041/75A
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
Application filed by Individual filed Critical Individual
Publication of GB1493190A publication Critical patent/GB1493190A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B63C11/32—Decompression arrangements; Exercise equipment
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G04B47/06—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass
    • G04B47/066—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece with attached measuring instruments, e.g. pedometer, barometer, thermometer or compass with a pressure sensor

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Measurement Of Unknown Time Intervals (AREA)

Abstract

1493190 Pressure gauge R WICKLUND 30 April 1975 [24 May 1974] 18041/75 Heading G1L [Also in Division G3] In an apparatus for guiding the rate of ascent of a diver, a depth meter 1 and a timer 2 which simulates operation of the depth gauge indicator during an ascent at a predetermined rate, are positioned relative to one another so that their indicators 3, 4 can be viewed simultaneously. The depth meter 1 may be of known Bourdon oil-filled type and the timer mechanism may be of a known battery or mainspring operated watch mechanism, Fig. 4 (not shown), set, wound and started by a control 6 arranged in the side, or in the centre, Figs. 3a, 3b (not shown) of the mechanism. The scale 5 of the depth meter I may be non-linear having a greater angular displacement at the lower values than at the greater depth values. The depth mechanism may be linear and the timer may rotate at a non-linear rate decreasing as it approaches the zero depth mark on the depth meter scale. In the alternative embodiment, (Figs. 3a, 3b) the depth meter 1 and the timer 2 are in separated sealed units clamped together with transparent interfaces in face-to-face relationship. The timer and depth meter may be rotatable relative to one another for setting purposes.
GB18041/75A 1974-05-24 1975-04-30 Rate of ascent guide apparatus for underwater divers Expired GB1493190A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US473248A US3910117A (en) 1974-05-24 1974-05-24 Rate of ascent guide device for underwater divers

Publications (1)

Publication Number Publication Date
GB1493190A true GB1493190A (en) 1977-11-23

Family

ID=23878770

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18041/75A Expired GB1493190A (en) 1974-05-24 1975-04-30 Rate of ascent guide apparatus for underwater divers

Country Status (7)

Country Link
US (1) US3910117A (en)
JP (1) JPS50150197A (en)
CA (1) CA1033189A (en)
DE (1) DE2516612A1 (en)
FR (1) FR2272399B1 (en)
GB (1) GB1493190A (en)
SE (1) SE7503581L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183838A (en) * 1985-11-22 1987-06-10 Rolex Montres Depth and decompression diving gauge

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3992949A (en) * 1975-12-29 1976-11-23 Edmondson Bill E Rate-of-ascent monitoring instrument for divers
US4782338A (en) * 1982-01-21 1988-11-01 Orca Industries, Inc. Display scheme for decompression data
US5049864A (en) * 1982-01-21 1991-09-17 Orca Ii, Inc. Display scheme for decompression data
US5251190A (en) * 1991-02-22 1993-10-05 Citizen Watch Co., Ltd. Electronic timepiece having functional hands
EP0738943A1 (en) * 1995-04-21 1996-10-23 Scubapro EU Diving measuring device, in particular diving computer
US7778115B2 (en) * 2005-12-15 2010-08-17 Richemont International S.A. Depth measuring device for watches, and watches incorporating such a measuring device
EP1850194A1 (en) * 2006-04-25 2007-10-31 Piguet, Frédéric Diver's watch
FR3011097B1 (en) * 2013-09-23 2015-11-13 Withings WATCH BRACELET WITH EXTENDED FUNCTIONALITIES
EP3168694B1 (en) * 2015-11-11 2019-01-02 Blancpain SA. Mechanism indicating ascension speed and diving watch comprising such a mechanism
EP4134758B1 (en) * 2021-08-10 2024-04-03 Blancpain SA Timepiece mechanism indicating information about a surrounding pressure comprising a reset mechanism and timepiece, such as a diving watch, comprising such a mechanism

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2379293A (en) * 1942-03-25 1945-06-26 Rca Corp Rate-of-climb indicator
US2632374A (en) * 1942-04-06 1953-03-24 Douglas Aircraft Co Inc Aircraft cabin rate of climb control instrument
US2412740A (en) * 1945-04-14 1946-12-17 Cities Service Oil Co Rate of rise-dive indicator
US2931221A (en) * 1955-06-24 1960-04-05 Stanley J Rusk Altitude and altitude rate of change meter
US2935873A (en) * 1956-04-30 1960-05-10 Stewart Trigg Diver held depth gauge
US2979948A (en) * 1958-12-24 1961-04-18 Specialties Inc Fluid flow meter
CH373979A (en) * 1960-01-30 1963-12-15 Alinari Carlo Tool to indicate to divers the decompression stops to be made during the emergence phase
US3111003A (en) * 1961-09-27 1963-11-19 Droz Arthur Diving watch
US3457393A (en) * 1964-11-10 1969-07-22 Nat Defence Canada Analogue decompression computing device
US3377860A (en) * 1965-05-27 1968-04-16 Masters Frederick James Combination watch depth meter
US3463015A (en) * 1966-12-12 1969-08-26 Gen Dynamics Corp Decompression monitor
CH513456A (en) * 1968-08-29 1971-06-15 Jenny & Cie S A Fabrique D Hor Measuring and control instrument for underwater diver
US3681585A (en) * 1970-02-24 1972-08-01 Gary P Todd Analog computer for decompression schedules
US3693446A (en) * 1970-08-11 1972-09-26 U S Divers Co Depth gauge
US3710025A (en) * 1971-09-21 1973-01-09 Bell Telephone Labor Inc Time slot memory circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2183838A (en) * 1985-11-22 1987-06-10 Rolex Montres Depth and decompression diving gauge
GB2183838B (en) * 1985-11-22 1989-10-04 Rolex Montres Depth and decompression diving gauge

Also Published As

Publication number Publication date
FR2272399A1 (en) 1975-12-19
DE2516612A1 (en) 1975-12-04
US3910117A (en) 1975-10-07
CA1033189A (en) 1978-06-20
AU7968075A (en) 1976-10-07
SE7503581L (en) 1975-11-25
FR2272399B1 (en) 1978-09-08
JPS50150197A (en) 1975-12-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee