GB1267770A - Calibratable thermostatic switch for thermal protection - Google Patents

Calibratable thermostatic switch for thermal protection

Info

Publication number
GB1267770A
GB1267770A GB2648570A GB2648570A GB1267770A GB 1267770 A GB1267770 A GB 1267770A GB 2648570 A GB2648570 A GB 2648570A GB 2648570 A GB2648570 A GB 2648570A GB 1267770 A GB1267770 A GB 1267770A
Authority
GB
United Kingdom
Prior art keywords
casing
contact
axis
displaced
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
GB2648570A
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.)
AMF Inc
Original Assignee
AMF Inc
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 AMF Inc filed Critical AMF Inc
Publication of GB1267770A publication Critical patent/GB1267770A/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
    • H01H37/12—Means for adjustment of "on" or "off" operating temperature
    • H01H37/28—Means for adjustment of "on" or "off" operating temperature by adjustment of the position of the fixed contact

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

1,267,770. Temperature responsive switches. AMF Inc. 2 June, 1970 [13 June, 1969], No. 26485/70. Heading HlN. In a thermal switch the fixed contact 20 can, during manufacture, be turned about an axis perpendicular to, but displaced to one side of, the path of the movable contact 18 so as to adjust the operating temperature. The switch has a tubular metal casing 10 forming one terminal; a cable 28 is welded to an extension of the casing. One end of the casing 10 is closed and contains members 12, 14 which clamp the end of a snap acting bimetal blade 16. The blade carries the movable contact 18 at a point displaced from the axis of the tubular casing. The other end of the casing 10 is closed by an insulating block 30 in which the fixed contact 20 is embedded; a second cable 24 is welded to contact 20. The switch is set to the desired operating temperature by turning block 30 in the casing and then sealed with synthetic resin. In a modification (Figs. 3, 5, not shown) the block 30 is fixed and the contact rotates in it, both the axis of rotation of the fixed contact and the path of the moving being displaced, on opposite sides, from the axis of the casing which in this case is rectangular. This arrangement provides a greater range of adjustment.
GB2648570A 1969-06-13 1970-06-02 Calibratable thermostatic switch for thermal protection Expired GB1267770A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1814569 1969-06-13

Publications (1)

Publication Number Publication Date
GB1267770A true GB1267770A (en) 1972-03-22

Family

ID=32922984

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2648570A Expired GB1267770A (en) 1969-06-13 1970-06-02 Calibratable thermostatic switch for thermal protection

Country Status (3)

Country Link
DE (1) DE2029154A1 (en)
FR (1) FR2050086A5 (en)
GB (1) GB1267770A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8801497U1 (en) * 1988-02-06 1988-07-07 Limitor Gmbh, 7530 Pforzheim, De

Also Published As

Publication number Publication date
DE2029154A1 (en) 1971-01-28
FR2050086A5 (en) 1971-03-26

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee