GB667615A - Improvements in thermostats - Google Patents

Improvements in thermostats

Info

Publication number
GB667615A
GB667615A GB4704/50A GB470450A GB667615A GB 667615 A GB667615 A GB 667615A GB 4704/50 A GB4704/50 A GB 4704/50A GB 470450 A GB470450 A GB 470450A GB 667615 A GB667615 A GB 667615A
Authority
GB
United Kingdom
Prior art keywords
lever
screw
thermostat
switch
engages
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
GB4704/50A
Inventor
Arthur John Chinn
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.)
Rheostatic Co Ltd
Original Assignee
Rheostatic Co 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 Rheostatic Co Ltd filed Critical Rheostatic Co Ltd
Publication of GB667615A publication Critical patent/GB667615A/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

Landscapes

  • Thermally Actuated Switches (AREA)

Abstract

667,615. Thermal switches. RHEOSTATIC CO., Ltd. Feb. 23, 1950. No. 4704/50. Class 38 (v). In a thermostat having a magnetic snapaction switch such as that of Specification 625,492, the switch is actuated by a rod-andtube thermal member 3, 4 through the medium of a right-angled lever 33, 34 which is provided with pivot projections 36 engaging projections 37 on the base 1 of the thermostat. The lever 33, 34 is anchored by means of a.spring member 35, which is formed with slots engaged by fixing screws 41, 42, so that the pivots 36 of the lever can be so positioned on the base that the desired lever ratio between the effective portions of the two arms 33, 34 is made correct for the chosen length of the thermal member. The arm 33 is provided with a screw 32 which engages a spring loaded plunger 31 in an adjusting screw 25 having a nut 28 within an insulating block 29 which engages the contact carrying spring lever 13 of the switch. Rotation of the block 29 and nut 28 is prevented by a plate 18, so that the temperature setting of the thermostat may be adjusted on turning the screw 25 by means of a slotted coupling 26 engaging a pin 27 carried by the screw.
GB4704/50A 1950-02-23 1950-02-23 Improvements in thermostats Expired GB667615A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB290934X 1950-02-23

Publications (1)

Publication Number Publication Date
GB667615A true GB667615A (en) 1952-03-05

Family

ID=10286028

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4704/50A Expired GB667615A (en) 1950-02-23 1950-02-23 Improvements in thermostats

Country Status (3)

Country Link
CH (1) CH290934A (en)
FR (1) FR1033094A (en)
GB (1) GB667615A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE959334C (en) * 1953-10-28 1957-03-07 Christian Buerkert Rod expansion controller
US2911514A (en) * 1957-11-01 1959-11-03 Westinghouse Electric Corp Thermostatically controlled cooking apparatus

Also Published As

Publication number Publication date
FR1033094A (en) 1953-07-08
CH290934A (en) 1953-05-31

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