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GB877348A - Improvements in acceleration responsive device - Google Patents

Improvements in acceleration responsive device

Info

Publication number
GB877348A
GB877348A GB3308458A GB3308458A GB877348A GB 877348 A GB877348 A GB 877348A GB 3308458 A GB3308458 A GB 3308458A GB 3308458 A GB3308458 A GB 3308458A GB 877348 A GB877348 A GB 877348A
Authority
GB
United Kingdom
Prior art keywords
mass
vibration
acceleration responsive
returned
switches
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
GB3308458A
Inventor
Edward Victor Hardway Jr
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.)
Robertshaw Controls Co
Original Assignee
Robertshaw Fulton Controls Co
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 Robertshaw Fulton Controls Co filed Critical Robertshaw Fulton Controls Co
Priority to GB3308458A priority Critical patent/GB877348A/en
Priority to FR1213159D priority patent/FR1213159A/en
Publication of GB877348A publication Critical patent/GB877348A/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
    • H01H35/144—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch operated by vibration
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H5/00—Snap-action arrangements, i.e. in which during a single opening operation or a single closing operation energy is first stored and then released to produce or assist the contact movement
    • H01H5/02—Energy stored by the attraction or repulsion of magnetic parts

Landscapes

  • Vibration Prevention Devices (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)

Abstract

877,348. Inertia switches operated by vibration; switches, partly electromagnetic. ROBERTSHAW-FULTON CONTROLS CO. Oct. 16, 1958, No. 33084/58. Class 38 (5). [Also in Group XIX] An acceleration responsive switch fixed to a cooling tower fan, for example, in order to detect excessive vibration, is calibrated by adjusting the screw 34 to hold magnetic mass 26 away from magnet 28 in such a position that the mass just cannot fall under the combined forces of normal vibration and gravity. When excessive vibration occurs, the mass falls and rod 24 actuates switch 38. The mass is returned manually by plunger 40 or may be returned electromagnetically.
GB3308458A 1958-10-16 1958-10-16 Improvements in acceleration responsive device Expired GB877348A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3308458A GB877348A (en) 1958-10-16 1958-10-16 Improvements in acceleration responsive device
FR1213159D FR1213159A (en) 1958-10-16 1958-11-05 Improvements to acceleration response devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3308458A GB877348A (en) 1958-10-16 1958-10-16 Improvements in acceleration responsive device

Publications (1)

Publication Number Publication Date
GB877348A true GB877348A (en) 1961-09-13

Family

ID=10348354

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3308458A Expired GB877348A (en) 1958-10-16 1958-10-16 Improvements in acceleration responsive device

Country Status (2)

Country Link
FR (1) FR1213159A (en)
GB (1) GB877348A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138211A (en) * 1983-04-13 1984-10-17 Lre Relais & Elektronik Gmbh Magnet apparatus
GB2236857A (en) * 1989-10-06 1991-04-17 Breed Automotive Tech Velocity change sensor

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2296257A1 (en) * 1974-12-27 1976-07-23 Thomson Csf Shock operated electric switch - has pendulous mass annular magnet and microswitch to release contactor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2138211A (en) * 1983-04-13 1984-10-17 Lre Relais & Elektronik Gmbh Magnet apparatus
GB2236857A (en) * 1989-10-06 1991-04-17 Breed Automotive Tech Velocity change sensor

Also Published As

Publication number Publication date
FR1213159A (en) 1960-03-29

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