GB1092416A - Temperature and pressure safety device - Google Patents

Temperature and pressure safety device

Info

Publication number
GB1092416A
GB1092416A GB10061/65A GB1006165A GB1092416A GB 1092416 A GB1092416 A GB 1092416A GB 10061/65 A GB10061/65 A GB 10061/65A GB 1006165 A GB1006165 A GB 1006165A GB 1092416 A GB1092416 A GB 1092416A
Authority
GB
United Kingdom
Prior art keywords
rod
housing
container
substance
spring
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
GB10061/65A
Inventor
Hubert Hermans
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.)
Daalderop J & Zonen
Original Assignee
Daalderop J & Zonen
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 Daalderop J & Zonen filed Critical Daalderop J & Zonen
Publication of GB1092416A publication Critical patent/GB1092416A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B9/00—Safety arrangements
    • G05B9/05—Safety arrangements fluidic
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/003—Safety valves; Equalising valves, e.g. pressure relief valves reacting to pressure and temperature
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
    • F16K17/38—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature
    • F16K17/383—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position of excessive temperature the valve comprising fusible, softening or meltable elements, e.g. used as link, blocking element, seal, closure plug
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/40—Safety valves; Equalising valves, e.g. pressure relief valves with a fracturing member, e.g. fracturing diaphragm, glass, fusible joint
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/74—Switches in which only the opening movement or only the closing movement of a contact is effected by heating or cooling
    • H01H37/76—Contact member actuated by melting of fusible material, actuated due to burning of combustible material or due to explosion of explosive material

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Cookers (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

1,092,416. Thermal switches; fluid actuation of switches. KONINKLIJKE METAALWARENFARBRIEKEN v/h J. N. DAALDEROP & ZONEN N.V. March 9, 1965 [March 9, 1964], No. 10061/65. Heading H2B. [Also in Division G1] A safety device for mounting in an opening of a wall of a chamber for heating liquids for responding to temperature and fluid pressure changes in the chamber comprises an apertured carrier 1 supporting a housing 19 by a flexible annular seal 3 sealed at one of its peripheries to the carrier 1 and at the other of its peripheries with the housing 19, one side of the seal 3 being adapted to being exposed to fluid pressure in the heating chamber, a shearable member 15 retained by the carrier 1 and resisting displacement of the housing 19 up to a loading corresponding with a given maximum fluid pressure in the heating chamber. The device also comprises a settable operating rod 16 displaceable between an inner and an outer position in the housing 19, means for coupling the rod 16 to an abutment member 28 slidable in a thermal-sensitive element comprising a container 22, 23 supporting member 28 for sliding between an inner and an outer position in the container 22, 23 and hermetically containing a fusible substance 24 retaining member 28 in the inner position in the container, and the coupling means automatically securing rod 16 to member 28 when the rod 16 is being set to occupy the inner position in the housing and thereby set the device, and means for automatically uncoupling rod 16 from member 28 during displacement of rod 16 upon fusion of substance 24, a spring 39 for urging rod 16 into the outer position in the housing 19, and a spring 26 for urging member 28 into container 22, 23, spring 39 being adapted to overcome spring 26. The means for coupling rod 16 to member 28 comprises a pawl 30 resiliently urged into coupling engagement with member 28, and the means for uncoupling provides a surface 37 for guiding pawl 30 clear of member 28 during displacement of rod 16 upon fusion of substance 24. Following upon fusion of substance 24 and uncoupling of rod 16 from member 28, member 28 is urged into the inner position in container 22, 23 by spring 26 so that when substance 24 re-solidifies, the device can be reset by pressing in rod 16 so that it re-couples with member 28. Pin 16 has a longitudinal slot with ends 41, 42 surrounding wire 15. Movement of the control rod operates a switch.
GB10061/65A 1964-03-09 1965-03-09 Temperature and pressure safety device Expired GB1092416A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6402395A NL127274C (en) 1964-03-09 1964-03-09

Publications (1)

Publication Number Publication Date
GB1092416A true GB1092416A (en) 1967-11-22

Family

ID=19789522

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10061/65A Expired GB1092416A (en) 1964-03-09 1965-03-09 Temperature and pressure safety device

Country Status (9)

Country Link
AT (1) AT267909B (en)
BE (1) BE660807A (en)
CH (1) CH448557A (en)
DE (1) DE1679731B2 (en)
DK (1) DK121214B (en)
FR (1) FR1428335A (en)
GB (1) GB1092416A (en)
NL (1) NL127274C (en)
SE (1) SE311707B (en)

Also Published As

Publication number Publication date
SE311707B (en) 1969-06-23
AT267909B (en) 1969-01-27
NL6402395A (en) 1965-09-10
FR1428335A (en) 1966-02-11
DE1679731A1 (en) 1971-03-25
CH448557A (en) 1967-12-15
DK121214B (en) 1971-09-20
BE660807A (en) 1965-07-01
DE1679731B2 (en) 1973-01-04
NL127274C (en) 1969-09-15

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