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GB977480A - Improvements in or relating to thermostats - Google Patents

Improvements in or relating to thermostats

Info

Publication number
GB977480A
GB977480A GB1496562A GB1496562A GB977480A GB 977480 A GB977480 A GB 977480A GB 1496562 A GB1496562 A GB 1496562A GB 1496562 A GB1496562 A GB 1496562A GB 977480 A GB977480 A GB 977480A
Authority
GB
United Kingdom
Prior art keywords
april
stressed
snap
differential
bimetallic
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
GB1496562A
Inventor
William Harry Wilson
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.)
Satchwell Controls Ltd
Original Assignee
Satchwell Controls Ltd
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 Satchwell Controls Ltd filed Critical Satchwell Controls Ltd
Priority to GB1496562A priority Critical patent/GB977480A/en
Publication of GB977480A publication Critical patent/GB977480A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/32—Thermally-sensitive members
    • H01H37/52—Thermally-sensitive members actuated due to deflection of bimetallic element
    • H01H37/54—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting
    • H01H2037/5472—Thermally-sensitive members actuated due to deflection of bimetallic element wherein the bimetallic element is inherently snap acting having an omega form, e.g. the bimetallic snap element having a ring shape with a central tongue

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Control Of Temperature (AREA)

Abstract

977,480. Thermal switches. SATCHWELL CONTROLS Ltd. April 18, 1963 [April 18, 1962], No. 14965/62. Heading H2B. An anticipatory heating resistor 15 is clamped in contact with a snap-acting bimetallic switchactuating member 1 operative in response to an increase in ambient temperature. Member 1 is a differentially-stressed E-shaped sheet with its outer limbs 2, 4 adjustably mounted in clamping blocks 6, 7 and its centre limb 3 carrying the movable contact 14. Resistor 15 has a low mass to wattage ratio and its heating value is only 2‹ to 3‹ F. greater than the thermostat differential, which differential has a range of 10‹ to 15‹ F. Alternatively, the bimetallic member 1 may be a pre-stressed snap-acting disc.
GB1496562A 1962-04-18 1962-04-18 Improvements in or relating to thermostats Expired GB977480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1496562A GB977480A (en) 1962-04-18 1962-04-18 Improvements in or relating to thermostats

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1496562A GB977480A (en) 1962-04-18 1962-04-18 Improvements in or relating to thermostats

Publications (1)

Publication Number Publication Date
GB977480A true GB977480A (en) 1964-12-09

Family

ID=10050691

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1496562A Expired GB977480A (en) 1962-04-18 1962-04-18 Improvements in or relating to thermostats

Country Status (1)

Country Link
GB (1) GB977480A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278855A (en) 1979-03-13 1981-07-14 Ranco Incorporated Snap action switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4278855A (en) 1979-03-13 1981-07-14 Ranco Incorporated Snap action switch

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