ES346690A2 - Thermally controlled electrical switch having motion-amplifying lever means - Google Patents

Thermally controlled electrical switch having motion-amplifying lever means

Info

Publication number
ES346690A2
ES346690A2 ES346690A ES346690A ES346690A2 ES 346690 A2 ES346690 A2 ES 346690A2 ES 346690 A ES346690 A ES 346690A ES 346690 A ES346690 A ES 346690A ES 346690 A2 ES346690 A2 ES 346690A2
Authority
ES
Spain
Prior art keywords
disc
arms
lever
screw
switch
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
ES346690A
Other languages
Spanish (es)
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.)
Borletti SpA
Original Assignee
Borletti SpA
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 Borletti SpA filed Critical Borletti SpA
Publication of ES346690A2 publication Critical patent/ES346690A2/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

Landscapes

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermally Actuated Switches (AREA)
  • Push-Button Switches (AREA)

Abstract

In a thermally controlled electric switch having a metal housing 1 which screws into the wall of a container, so that the switch is immersed in the medium therein, a moving contact 14, mounted on a bent lever 12 is moved into engagement with a fixed contact 21 by a bimetallic disc 4 snapping into the position shown in dotted lines when the temperature of the medium reaches a predetermined level. A leaf spring 16, adjustable by a screw 22, is attached to the lever 12 and a radial arm 7 on a circular plate 6, held in the housing 1, by a pin 10, the conical end 101 of which engages the disc 4 the spring 16 serves to oppose the snapping over of the disc, thereby altering the temperature at which this happens and also aids in resetting the switch when the temperature drops. The arms 13, 17 of the lever 12 and leaf spring 16 respectively, are longer than the arms 11, 15 so that a small movement by the pin 10 from the disc 4 becomes a larger movement at the end of arms 13. The fixed contact 21 may be adjusted by a screw 35, or may comprise the head of a screw itself, Fig. 2 (not shown).
ES346690A 1962-05-29 1967-11-02 Thermally controlled electrical switch having motion-amplifying lever means Expired ES346690A2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
IT1063062 1962-05-29
IT1855663 1963-09-10
IT2955966 1966-11-03

Publications (1)

Publication Number Publication Date
ES346690A2 true ES346690A2 (en) 1968-12-16

Family

ID=27272770

Family Applications (1)

Application Number Title Priority Date Filing Date
ES346690A Expired ES346690A2 (en) 1962-05-29 1967-11-02 Thermally controlled electrical switch having motion-amplifying lever means

Country Status (5)

Country Link
US (3) US3221126A (en)
DE (1) DE1465558A1 (en)
ES (1) ES346690A2 (en)
FR (1) FR93768E (en)
GB (3) GB1035515A (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3221126A (en) * 1962-05-29 1965-11-30 Borletti Spa Thermally controlled electrical switch having motion-amplifying lever means
US3412934A (en) * 1966-11-14 1968-11-26 Robertshaw Controls Co Thermostatic control device
US3529105A (en) * 1967-02-15 1970-09-15 Emerson Electric Co Snap switch and thermoresponsive actuator
ES139319Y (en) * 1967-07-08 1969-06-16 Veglia, S. A. E. PERFECTED THERMOMETRIC SWITCH WITH BIMETALI-CA DISC REED.
US3731248A (en) * 1971-09-13 1973-05-01 Micro Devices Corp Thermal limiter constructions
US3839693A (en) * 1971-09-13 1974-10-01 Micro Devices Corp Thermal limiter constructions
GB1546578A (en) * 1975-10-30 1979-05-23 Taylor J C Method and apparatus for manufacturing snap-acting thermally responsive bimetallic actuators

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1522786A (en) * 1920-06-09 1925-01-13 Westinghouse Electric & Mfg Co Thermal relay
DE625675C (en) * 1934-02-16 1936-02-13 Voigt & Haeffner Akt Ges Temperature controller for electrically heated devices with a bimetallic spring element in the form of a disc that cannot be developed
US2387904A (en) * 1942-10-17 1945-10-30 Robert Hetherington & Son Inc Heat coil operated thermal switch
GB651151A (en) * 1948-05-14 1951-03-14 Ericsson Telephones Ltd Improvements in devices operated by magnetostriction or thermal expansion
US2750475A (en) * 1951-01-10 1956-06-12 Gen Motors Corp Thermostatic switch
US2722666A (en) * 1951-11-14 1955-11-01 Bryant Electric Co Electrical receptacle
US2751464A (en) * 1953-07-02 1956-06-19 Gen Motors Corp Temperature responsive switch
US2863024A (en) * 1957-04-18 1958-12-02 Lee W Romine Signal connecting bolt
CH354918A (en) * 1957-12-10 1961-06-15 Landis & Gyr Ag Overtemperature protection for electrically heated hot water storage tanks
US3015687A (en) * 1959-11-03 1962-01-02 Sprague Electric Co Electrical component terminal
US3139500A (en) * 1960-03-02 1964-06-30 Wilcolator Co Thermally actuated double throw switch mechanism
US3221126A (en) * 1962-05-29 1965-11-30 Borletti Spa Thermally controlled electrical switch having motion-amplifying lever means

Also Published As

Publication number Publication date
GB1070875A (en) 1967-06-07
GB1134289A (en) 1968-11-20
GB1035515A (en) 1966-07-06
FR93768E (en) 1969-05-16
US3221126A (en) 1965-11-30
US3223806A (en) 1965-12-14
US3453581A (en) 1969-07-01
DE1465558A1 (en) 1969-03-27

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