GB929108A - Improvements in automatic controls for underwater relief valves in the suction pipesof suction dredgers - Google Patents

Improvements in automatic controls for underwater relief valves in the suction pipesof suction dredgers

Info

Publication number
GB929108A
GB929108A GB4586661A GB4586661A GB929108A GB 929108 A GB929108 A GB 929108A GB 4586661 A GB4586661 A GB 4586661A GB 4586661 A GB4586661 A GB 4586661A GB 929108 A GB929108 A GB 929108A
Authority
GB
United Kingdom
Prior art keywords
suction
pipesof
dredgers
relief valves
automatic controls
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
GB4586661A
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.)
MARQUERCTE MCCARTY HOFER
Original Assignee
MARQUERCTE MCCARTY HOFER
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 MARQUERCTE MCCARTY HOFER filed Critical MARQUERCTE MCCARTY HOFER
Publication of GB929108A publication Critical patent/GB929108A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/06—Devices, e.g. valves, for venting or aerating enclosures for aerating only
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/88—Dredgers; Soil-shifting machines mechanically-driven with arrangements acting by a sucking or forcing effect, e.g. suction dredgers
    • E02F3/90—Component parts, e.g. arrangement or adaptation of pumps
    • E02F3/907—Measuring or control devices, e.g. control units, detection means or sensors
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7758—Pilot or servo controlled
    • Y10T137/7761—Electrically actuated valve

Abstract

929,108. Suction dredgers. M. M. HOFER. Dec. 21, 1961 [Sept. 11, 1961], No. 45866/61. Class 68 (1). [Also in Group XXIX] The control system for the relief valve 6 of the suction pipe 2 of a dredger 1 as disclosed in Specification 815,951 is modified in that three pressure switches of said system are replaced by a differential pressure switch 27. The switch 27 is controlled by the pressure on the discharge side of the suction pump 4, the two valve chambers 33, 34 being connected directly by way of pipe 36 and indirectly by way of pipe 41, buffer chamber 40, and restriction 39 to said control pressure source.
GB4586661A 1961-09-11 1961-12-21 Improvements in automatic controls for underwater relief valves in the suction pipesof suction dredgers Expired GB929108A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US13715261 US3109377A (en) 1961-09-11 1961-09-11 Relief valve control system for hydraulic dredges

Publications (1)

Publication Number Publication Date
GB929108A true GB929108A (en) 1963-06-19

Family

ID=22476034

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4586661A Expired GB929108A (en) 1961-09-11 1961-12-21 Improvements in automatic controls for underwater relief valves in the suction pipesof suction dredgers

Country Status (2)

Country Link
US (1) US3109377A (en)
GB (1) GB929108A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2860955D1 (en) * 1978-11-03 1981-11-12 Ballast Nedam Groep Nv Apparatus for safeguarding transport of a suspension of dredging spoil and water
US5201877A (en) * 1992-04-24 1993-04-13 Arkadi Relin Suction transporting device
NL2011160C2 (en) * 2013-07-12 2015-01-13 Ihc Holland Ie Bv VACUUM CONTROL METHOD FOR A RISER LINE.

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603234A (en) * 1952-07-15 Relief valve operating and control
US1987200A (en) * 1934-01-02 1935-01-08 Bristol Company Control mechanism
US2250021A (en) * 1938-02-25 1941-07-22 David L Hofer Relief valve control
GB543922A (en) * 1940-12-26 1942-03-19 British Thomson Houston Co Ltd Improvements relating to fluid pressure and/or flow responsive electric switches
US2385664A (en) * 1941-08-19 1945-09-25 Gen Electric Cabin supercharger arrangements
US2662547A (en) * 1946-09-03 1953-12-15 Garrett Corp Flow control apparatus
US2572263A (en) * 1949-05-02 1951-10-23 David L Hofer Suction dredge relief valve system
US2644400A (en) * 1950-06-24 1953-07-07 David L Hofer Control circuit for emergency relief valve of a dredge
US2754763A (en) * 1953-03-13 1956-07-17 David L Hofer Control system for suction dredge relief valve
US2889779A (en) * 1957-06-24 1959-06-09 Hofer David Louis Relief valve system for suction dredges
US2993965A (en) * 1957-06-27 1961-07-25 Robertshaw Fulton Controls Co Timing devices

Also Published As

Publication number Publication date
US3109377A (en) 1963-11-05

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