GB1219497A - Electric switches - Google Patents

Electric switches

Info

Publication number
GB1219497A
GB1219497A GB4703468A GB4703468A GB1219497A GB 1219497 A GB1219497 A GB 1219497A GB 4703468 A GB4703468 A GB 4703468A GB 4703468 A GB4703468 A GB 4703468A GB 1219497 A GB1219497 A GB 1219497A
Authority
GB
United Kingdom
Prior art keywords
contacts
contact
operating member
cover
retained
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
GB4703468A
Inventor
David Normann Harley
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.)
ITW Ltd
Original Assignee
ITW 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 ITW Ltd filed Critical ITW Ltd
Priority to GB4703468A priority Critical patent/GB1219497A/en
Publication of GB1219497A publication Critical patent/GB1219497A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H13/00—Switches having rectilinearly-movable operating part or parts adapted for pushing or pulling in one direction only, e.g. push-button switch
    • H01H13/02—Details
    • H01H13/12—Movable parts; Contacts mounted thereon
    • H01H13/14—Operating parts, e.g. push-button
    • H01H13/18—Operating parts, e.g. push-button 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
    • H01H13/183—Operating parts, e.g. push-button 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 for actuation by moving a closing member, e.g. door, cover
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D27/00—Lighting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/02—Sensors detecting door opening

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • Push-Button Switches (AREA)

Abstract

1,219,497. Retroactive switches. ITW Ltd. 3 Oct., 1969 [3 Oct., 1968], No. 47034/68. Heading H1N. A switch, controlling a light 11 for illumin. ating the interior of a refrigerator when the door is open, comprises two movable resilient contacts 14, 15 made of carbon steel strip. The contact 14 is frictionally retained between portions 18, 19 of a cover 9 and the contact 15 is retained between portions 24, 25 of the cover. The cover is made of polypropylene as is an operating member 30. The operating member comprises a wedgeshaped portion 33 which is forced between the contacts 14, 15 as the result of a pivotal operating force applied to a member 31. When the operating force is removed, by opening the refrigerator door, the resilience of the contacts 14, 15 forces out the operating member which causes the contacts to close and complete the supply to the light 11. The member is pivoted about an integral hinge portion or, in a modification, by a hook-shaped projection. In an alternative embodiment, not shown, the contacts are symmetrical and retained in a tubular housing which is held in a hole in a panel by resilient legs. The operating member is axially reciprocable and the end which is inserted between the contacts is parabolic in cross-section and the shape can be selected to determine the relationship between position and restoring force. It is stated that the resilient contact can be replaced by a movable contact operated on by a separate spring.
GB4703468A 1968-10-03 1968-10-03 Electric switches Expired GB1219497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4703468A GB1219497A (en) 1968-10-03 1968-10-03 Electric switches

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4703468A GB1219497A (en) 1968-10-03 1968-10-03 Electric switches

Publications (1)

Publication Number Publication Date
GB1219497A true GB1219497A (en) 1971-01-13

Family

ID=10443455

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4703468A Expired GB1219497A (en) 1968-10-03 1968-10-03 Electric switches

Country Status (1)

Country Link
GB (1) GB1219497A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2238170A (en) * 1989-10-09 1991-05-22 Autoliv Dev Electric switch facilitating circuit testing
FR2694744A1 (en) * 1989-06-16 1994-02-18 Xancho Rene Temperature-controlled storage and transportation container - has steel-framed insulated body mounted on pallet-type base, with temperature maintained by self-contained corner unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2694744A1 (en) * 1989-06-16 1994-02-18 Xancho Rene Temperature-controlled storage and transportation container - has steel-framed insulated body mounted on pallet-type base, with temperature maintained by self-contained corner unit
GB2238170A (en) * 1989-10-09 1991-05-22 Autoliv Dev Electric switch facilitating circuit testing

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