GB930793A - Electrical control systems for filters - Google Patents

Electrical control systems for filters

Info

Publication number
GB930793A
GB930793A GB23506/59A GB2350659A GB930793A GB 930793 A GB930793 A GB 930793A GB 23506/59 A GB23506/59 A GB 23506/59A GB 2350659 A GB2350659 A GB 2350659A GB 930793 A GB930793 A GB 930793A
Authority
GB
United Kingdom
Prior art keywords
motor
switch
contacts
relay
filter material
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
GB23506/59A
Inventor
Frederick Floyd
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.)
OZONAIR ENGINEERING Co LT
Original Assignee
OZONAIR ENGINEERING Co LT
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 OZONAIR ENGINEERING Co LT filed Critical OZONAIR ENGINEERING Co LT
Priority to GB23506/59A priority Critical patent/GB930793A/en
Publication of GB930793A publication Critical patent/GB930793A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/18—Particle separators, e.g. dust precipitators, using filtering belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/09—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with filtering bands, e.g. movable between filtering operations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oxygen, Ozone, And Oxides In General (AREA)

Abstract

930,793. Control of motors; controllers. OZONAIR ENGINEERING CO. Ltd., and F. FLOYD. July 7, 1960 [July 8, 1959], No. 23506/59. Class 38 (3). [Also in Group XXVIII] A length of filter material is mounted on rolls one of which is associated with a take-up motor 17, a pressure switch 18 being opened due to a drop of pressure on the clean-air side of the filter when the filter material becomes dirty. Opening of switch 18 deenergizes relay 21 to close contacts 40, whereby contactor 35 closes to start the motor. A stop switch 25 for the motor is formed by contacts which are normally bridged by one of a number of short metal strips situated at regular intervals along the length of the filter material. The motor takes up a predetermined length of material, whereupon switch 25 closes to energize relay 23 and contacts 45 close to energize impulse relay 44. Relay 29 is then energized through contacts 47 to open contacts 42, de-energize contactor 35, and stop the motor. The contacts 42 are reset after a short period so that the control system is ready for the next cycle of operations to be initiated by switch 18. When the final length of filter material is reached and switch 18 is operated, the motor runs until a special contact strip on the material closes alarm switch 50 in series with relay 28. An alarm bell 30 is then actuated, and contactor 35 switches-off the motor. An inching button 43 is used during the re-loading process. A low-voltage section of the control circuit is supplied through step-down transformer 20. In an alternative arrangement, the arresting means comprises a long metal strip on the filter material having gaps for breaking the motor circuit.
GB23506/59A 1959-07-08 1959-07-08 Electrical control systems for filters Expired GB930793A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB23506/59A GB930793A (en) 1959-07-08 1959-07-08 Electrical control systems for filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23506/59A GB930793A (en) 1959-07-08 1959-07-08 Electrical control systems for filters

Publications (1)

Publication Number Publication Date
GB930793A true GB930793A (en) 1963-07-10

Family

ID=10196718

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23506/59A Expired GB930793A (en) 1959-07-08 1959-07-08 Electrical control systems for filters

Country Status (1)

Country Link
GB (1) GB930793A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732903A1 (en) * 1994-11-15 1996-10-18 Miller Peter Anthony Endless belt filter for rapid filtering in chemical, pharmaceutical, food, drink and waste water treatment

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2732903A1 (en) * 1994-11-15 1996-10-18 Miller Peter Anthony Endless belt filter for rapid filtering in chemical, pharmaceutical, food, drink and waste water treatment

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