GB773712A - Improvements in or relating to pressure or temperature actuated electric switches - Google Patents

Improvements in or relating to pressure or temperature actuated electric switches

Info

Publication number
GB773712A
GB773712A GB12242/55A GB1224255A GB773712A GB 773712 A GB773712 A GB 773712A GB 12242/55 A GB12242/55 A GB 12242/55A GB 1224255 A GB1224255 A GB 1224255A GB 773712 A GB773712 A GB 773712A
Authority
GB
United Kingdom
Prior art keywords
lever
spring
arm
pressure
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
GB12242/55A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of GB773712A publication Critical patent/GB773712A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H01H35/26—Details
    • H01H35/30—Means for transmitting pressure to pressure-responsive operating part, e.g. by capsule and capillary tube
    • 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
    • H01H35/26—Details
    • H01H35/2607—Means for adjustment of "ON" or "OFF" operating pressure

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Switches Operated By Changes In Physical Conditions (AREA)
  • Thermally Actuated Switches (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Abstract

773,712. Thermal switches; fluid actuation of switches. BOSCH GES., R. April 28, 1955 [May 28, 1954], No. 12242/55. Class 38(5) A temperature or pressure operated switch comprises a bellcrank lever (Fig. 4), a pressure sensitive device acting on one arm of the lever, an adjustable spring acting on the other arm, and a snap action switch member disposed between the spring and the first-mentioned lever arm. The bellcrank lever, pivoted at 12, has one of its arms forked forming two prongs the outer one of which is engaged by a stud 18 attached to a pressure operated capsule 19. Adjustable striking members 33, 34 are carried by two prongs engage the middle blade of trifurcated leaf spring 36 which carried a contact 40 so that the switch is operated on the tilting of the lever. Acting on the other arm of the lever is a restoring spring 24 whose top end is held in a member 27 which rests on a lever 25. The lever 25 is pivoted at 53 and rests on a cam 30 fixed to a shaft 31 to which is attached a knob 32. Rotation of the knob 32 causes the lever 25 to pivot varying the tension in the spring 24 and so adjusting the pressure at which the switch operates.
GB12242/55A 1954-05-29 1955-04-28 Improvements in or relating to pressure or temperature actuated electric switches Expired GB773712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB31191A DE963347C (en) 1954-05-29 1954-05-29 Electrical switching device, especially for cooling machines

Publications (1)

Publication Number Publication Date
GB773712A true GB773712A (en) 1957-05-01

Family

ID=6963429

Family Applications (2)

Application Number Title Priority Date Filing Date
GB12242/55A Expired GB773712A (en) 1954-05-29 1955-04-28 Improvements in or relating to pressure or temperature actuated electric switches
GB18013/59A Expired GB868270A (en) 1954-05-29 1959-05-27 Improvements in or relating to pressure or temperature actuable electric switches

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB18013/59A Expired GB868270A (en) 1954-05-29 1959-05-27 Improvements in or relating to pressure or temperature actuable electric switches

Country Status (7)

Country Link
US (2) US2810035A (en)
BE (1) BE538486A (en)
CH (1) CH330289A (en)
DE (1) DE963347C (en)
DK (1) DK85952C (en)
FR (1) FR1123106A (en)
GB (2) GB773712A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3532055A1 (en) * 1985-09-09 1987-03-12 Teves Gmbh Alfred SWITCH WITH SWITCHING
CN111627750A (en) * 2020-07-30 2020-09-04 南京网安视智能系统有限公司 Novel pressure relay

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3126461A (en) * 1954-05-29 1964-03-24 Electrical snap switch arrangement
DE1167943B (en) * 1959-12-12 1964-04-16 Siemens Ag Temperature regulator switching device
FR1200270A (en) * 1960-07-13 1959-12-21 Improvements to push-button switches of the limit switch type and the like
US3106623A (en) * 1961-12-15 1963-10-08 Vapor Corp Snap action differential actuator

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1066215A (en) * 1910-05-31 1913-07-01 Chicago Fuse Mfg Company Electric box.
DE483245C (en) * 1925-03-27 1929-10-01 Ernst Enna Method and device for gluing crepe rubber together with other materials by mechanical means
US1723635A (en) * 1927-05-16 1929-08-06 Fort Wayne Engineering & Mfg C Automatic pressure-controlled switch
GB409587A (en) * 1932-11-03 1934-05-03 Bosch Robert Improvements in or relating to quick-action electric switches
US2044736A (en) * 1936-01-23 1936-06-16 Automatic Reclosing Circuit Br Control apparatus
US2200995A (en) * 1937-02-05 1940-05-14 Westinghouse Electric & Mfg Co Circuit controller
US2242769A (en) * 1938-02-17 1941-05-20 Gen Motors Corp Switch
US2360723A (en) * 1941-03-27 1944-10-17 Square D Co Electric switch
US2354635A (en) * 1942-11-19 1944-07-25 Fred Burt Flasher switch
US2466522A (en) * 1943-08-06 1949-04-05 Robertshaw Fulton Controls Co Control device
US2457023A (en) * 1948-06-11 1948-12-21 Gen Electric Encasing assembly
US2598536A (en) * 1950-04-08 1952-05-27 Furnas Electric Co Fluid pressure actuated switch
US3126461A (en) * 1954-05-29 1964-03-24 Electrical snap switch arrangement
US2743331A (en) * 1955-01-21 1956-04-24 W L Maxson Corp Snap switch
US2901568A (en) * 1957-04-26 1959-08-25 Justin B Goff Snap-action switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3532055A1 (en) * 1985-09-09 1987-03-12 Teves Gmbh Alfred SWITCH WITH SWITCHING
CN111627750A (en) * 2020-07-30 2020-09-04 南京网安视智能系统有限公司 Novel pressure relay

Also Published As

Publication number Publication date
BE538486A (en)
CH330289A (en) 1958-05-31
US2810035A (en) 1957-10-15
DE963347C (en) 1957-05-09
GB868270A (en) 1961-05-17
US3126461A (en) 1964-03-24
FR1123106A (en) 1956-09-18
DK85952C (en) 1958-07-28

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