FR2272436A1 - Constant liquid flow rate device for photographic rinser developer - elastic disc varies inlet cross-section of flow channel - Google Patents

Constant liquid flow rate device for photographic rinser developer - elastic disc varies inlet cross-section of flow channel

Info

Publication number
FR2272436A1
FR2272436A1 FR7515597A FR7515597A FR2272436A1 FR 2272436 A1 FR2272436 A1 FR 2272436A1 FR 7515597 A FR7515597 A FR 7515597A FR 7515597 A FR7515597 A FR 7515597A FR 2272436 A1 FR2272436 A1 FR 2272436A1
Authority
FR
France
Prior art keywords
section
rinser
photographic
developer
constant liquid
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.)
Withdrawn
Application number
FR7515597A
Other languages
French (fr)
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.)
Agfa Gevaert AG
Original Assignee
Agfa Gevaert AG
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 Agfa Gevaert AG filed Critical Agfa Gevaert AG
Publication of FR2272436A1 publication Critical patent/FR2272436A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D7/00—Control of flow
    • G05D7/01—Control of flow without auxiliary power
    • G05D7/0106—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule
    • G05D7/012—Control of flow without auxiliary power the sensing element being a flexible member, e.g. bellows, diaphragm, capsule the sensing element being deformable and acting as a valve
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D3/00—Liquid processing apparatus involving immersion; Washing apparatus involving immersion
    • G03D3/02—Details of liquid circulation
    • G03D3/06—Liquid supply; Liquid circulation outside tanks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Photographic Processing Devices Using Wet Methods (AREA)
  • Gasket Seals (AREA)

Abstract

System for maintaining a constant liquid flow in a pipe network when there is a fluctuation in the supply pressure. The pressure at inlet will act on a rubber disc (2) or a similar type element. The effect of the disc will be to reduce the cross section of the channel when the pressure increases. The thickness of the disc is at least 1 mm and preferably 2mm and has a Shore hardness number between 85 and 90. An edge strip of the disc of at least 2mm fits along a sealing plane (1c). The flow channel which is in the sealing plane has a rectangular cross section with the width up to about five times the depth.
FR7515597A 1974-05-24 1975-05-20 Constant liquid flow rate device for photographic rinser developer - elastic disc varies inlet cross-section of flow channel Withdrawn FR2272436A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19742425069 DE2425069A1 (en) 1974-05-24 1974-05-24 DEVICE FOR MAINTENANCE OF A FLOWING AMOUNT OF LIQUID

Publications (1)

Publication Number Publication Date
FR2272436A1 true FR2272436A1 (en) 1975-12-19

Family

ID=5916337

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7515597A Withdrawn FR2272436A1 (en) 1974-05-24 1975-05-20 Constant liquid flow rate device for photographic rinser developer - elastic disc varies inlet cross-section of flow channel

Country Status (6)

Country Link
BE (1) BE829286A (en)
DE (1) DE2425069A1 (en)
DK (1) DK229975A (en)
FR (1) FR2272436A1 (en)
IT (1) IT1038265B (en)
NL (1) NL7506085A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2729458C3 (en) * 1977-06-30 1981-07-16 Arcu Armaturindustri AB, Alstermo Flow regulator, especially for installation between a water crane and a water pipe end
DE3223206C2 (en) * 1982-06-22 1985-02-07 Danfoss A/S, Nordborg Flow regulator
NL1010592C2 (en) * 1998-11-19 1999-10-01 Cornelis Maria Kipping Flow limiter.
RU2475705C1 (en) * 2011-08-22 2013-02-20 Михаил Иванович Голубенко Automatic control of static water head for closed pipelines

Also Published As

Publication number Publication date
IT1038265B (en) 1979-11-20
DE2425069A1 (en) 1975-12-04
NL7506085A (en) 1975-10-31
BE829286A (en) 1975-11-21
DK229975A (en) 1975-11-25

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Legal Events

Date Code Title Description
ST Notification of lapse