GB772919A - Inertia switch - Google Patents

Inertia switch

Info

Publication number
GB772919A
GB772919A GB22757/55A GB2275755A GB772919A GB 772919 A GB772919 A GB 772919A GB 22757/55 A GB22757/55 A GB 22757/55A GB 2275755 A GB2275755 A GB 2275755A GB 772919 A GB772919 A GB 772919A
Authority
GB
United Kingdom
Prior art keywords
switch
deceleration
pendulum
shaft
contact
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
GB22757/55A
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.)
Specialties Development Corp
Original Assignee
Specialties Development Corp
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 Specialties Development Corp filed Critical Specialties Development Corp
Publication of GB772919A publication Critical patent/GB772919A/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
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
    • H01H35/145—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch operated by a particular acceleration-time function
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch

Landscapes

  • Switches Operated By Changes In Physical Conditions (AREA)
  • Mechanisms For Operating Contacts (AREA)
  • Transmission Devices (AREA)

Abstract

772,919. Inertia switches. SPECIALTIES DEVELOPMENT CORPORATION. Aug 8. 1955 [Nov. 24, 1954], No. 22757/55. Class 38(5) An inertia switch, suitable for actuation by the deceleration of an aircraft, comprises a pendulum 10 pivoted on a shaft 24 and biased clockwise by a spring 12, the weighty end 26 carrying a contact 15 and being linked to dashpot means comprising a plunger 36, moving in a cylinder 35. If the switch, moving to the left, is decelerated the pendulum pivots and contact 15 engages'an adjustable fixed contact 16. Actuation of the switch depends on the magnitude and duration of the deceleration. Adjustment for the former is made by varying the force of the spring 12 the inner end of which is attached to shaft 24 and the outer end to a casing 30 rotatable on a plate 31 and capable of being held in position by screw 33. Adjustment for the duration of deceleration is made by varying a needle valve communication 40, 41 between the chamber 35 and the outside atmosphere. The shaft 24 is journalled on ball bearings 22 and the movement of the pendulum is limited by a screwthreaded stop member 28. A hermetically sealed can encloses the switch.
GB22757/55A 1954-11-24 1955-08-08 Inertia switch Expired GB772919A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US470942A US2793261A (en) 1954-11-24 1954-11-24 Inertia switch

Publications (1)

Publication Number Publication Date
GB772919A true GB772919A (en) 1957-04-17

Family

ID=23869676

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22757/55A Expired GB772919A (en) 1954-11-24 1955-08-08 Inertia switch

Country Status (2)

Country Link
US (1) US2793261A (en)
GB (1) GB772919A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2974529A (en) * 1958-06-27 1961-03-14 Giannini Controls Corp Acceleration integrator
US3018664A (en) * 1959-11-27 1962-01-30 Bendix Corp Accelerometers
US3190127A (en) * 1962-07-27 1965-06-22 Specialties Inc Damped accelerometer
US5285031A (en) * 1992-10-13 1994-02-08 Elgin Die Mold Co. Pendulum-activated switch assembly

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2075040A (en) * 1934-02-24 1937-03-30 Kieber Eugen Protective device for automobiles
US2185732A (en) * 1937-02-26 1940-01-02 Lewis L Huelsdonk Automatic circuit breaker for stop lights
US2445873A (en) * 1945-07-20 1948-07-27 Bendix Aviat Corp Inertia-actuated switch

Also Published As

Publication number Publication date
US2793261A (en) 1957-05-21

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