GB952495A - Improvements relating to electric limit switches - Google Patents

Improvements relating to electric limit switches

Info

Publication number
GB952495A
GB952495A GB16110/61A GB1611061A GB952495A GB 952495 A GB952495 A GB 952495A GB 16110/61 A GB16110/61 A GB 16110/61A GB 1611061 A GB1611061 A GB 1611061A GB 952495 A GB952495 A GB 952495A
Authority
GB
United Kingdom
Prior art keywords
spring
action
clockwise
fixed contacts
snap
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
GB16110/61A
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 BORODEL DENISON
Original Assignee
ROBERT BORODEL DENISON
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 BORODEL DENISON filed Critical ROBERT BORODEL DENISON
Publication of GB952495A publication Critical patent/GB952495A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift
    • H01H21/285—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift having an operating arm actuated by the movement of the body and mounted on an axis converting its rotating movement into a rectilinear switch activating movement
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/28—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for actuation at a limit or other predetermined position in the path of a body, the relative movement of switch and body being primarily for a purpose other than the actuation of the switch, e.g. door switch, limit switch, floor-levelling switch of a lift

Landscapes

  • Push-Button Switches (AREA)
  • Manufacture Of Switches (AREA)

Abstract

952,495. Retractive switches. R. B. DENISON. May 3,1961 [May 3, 1960], No. 16110/61. Heading H2B. In a snap-action limit switch a return spring 16 is biased either clockwise CW or counterclockwise CCW by a reversible control plate 85, according as finger 85d or 85c of the plate is located between the ends 16a, 16b, of spring 16, and correspondingly causes operating lever 19 of the switch to have a self-return action in a clockwise or counterclockwise direction. Fixed contacts 40...43 are slidably received in shaped recesses of a contact block 31 in housing 10 and have rigid terminal portions 105 extending therefrom for engagement in corresponding terminals 133 connected to lead-in wires 135 in a complementary housing part 130. A pivoted moving contact carrier arm 46 for bridging the fixed contacts 40, 41, or 42, 43, is coupled with a latching member 57 moved by actuator arm C on operation of the lever 19, a spring 70 providing snap-action movement when latching dog 80 or 81 is moved clear of cam segment 64 or 65 of the latching member 57 as the actuator arm C moves.
GB16110/61A 1960-04-25 1961-05-03 Improvements relating to electric limit switches Expired GB952495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US27238A US3097271A (en) 1960-04-25 1960-04-25 Electric limit switch

Publications (1)

Publication Number Publication Date
GB952495A true GB952495A (en) 1964-03-18

Family

ID=21836510

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16110/61A Expired GB952495A (en) 1960-04-25 1961-05-03 Improvements relating to electric limit switches

Country Status (3)

Country Link
US (1) US3097271A (en)
DE (1) DE1413758A1 (en)
GB (1) GB952495A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1110816A (en) * 1964-03-19 1968-04-24 Herbert B S A Electrics Ltd Improvements in or relating to electric limit switches
FR1453814A (en) * 1964-11-06 1966-07-22 Telemecanique Electrique Switching device known as limit switch
US3590177A (en) * 1969-06-13 1971-06-29 Buchanan Electrical Prod Corp Limit switch

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2734115A (en) * 1956-02-07 dupre
US2531350A (en) * 1947-06-27 1950-11-21 William Diefenthaler Receptacle for a switch
US2562420A (en) * 1949-10-21 1951-07-31 Furnas Electric Co Interchangeable electric switch
US2807685A (en) * 1953-04-20 1957-09-24 Max L Jeffrey Switch
US2822439A (en) * 1955-02-10 1958-02-04 Square D Co Electric switch
US2897327A (en) * 1957-11-12 1959-07-28 Allen Bradley Co Control-station

Also Published As

Publication number Publication date
DE1413758A1 (en) 1968-10-17
US3097271A (en) 1963-07-09

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