GB893170A - Improvements in acceleration responsive device - Google Patents

Improvements in acceleration responsive device

Info

Publication number
GB893170A
GB893170A GB33082/58A GB3308258A GB893170A GB 893170 A GB893170 A GB 893170A GB 33082/58 A GB33082/58 A GB 33082/58A GB 3308258 A GB3308258 A GB 3308258A GB 893170 A GB893170 A GB 893170A
Authority
GB
United Kingdom
Prior art keywords
mass
spring
magnet
acceleration
setting
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
GB33082/58A
Inventor
Edward Victor Hardway
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
Priority to DENDAT1074898D priority Critical patent/DE1074898B/en
Priority to US455297A priority patent/US2942456A/en
Application filed by Robertshaw Fulton Controls Co filed Critical Robertshaw Fulton Controls Co
Priority to GB33082/58A priority patent/GB893170A/en
Priority to FR778176A priority patent/FR1215039A/en
Publication of GB893170A publication Critical patent/GB893170A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D1/00—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots
    • G05D1/0055—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots with safety arrangements
    • G05D1/0066—Control of position, course, altitude or attitude of land, water, air or space vehicles, e.g. using automatic pilots with safety arrangements for limitation of acceleration or stress
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/135—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by making use of contacts which are actuated by a movable inertial mass
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/06—Switches operated by change of speed

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Automation & Control Theory (AREA)
  • Vibration Prevention Devices (AREA)

Abstract

893,170. Inertia switches. ROBERTSHAWFULTON CONTROLS. Oct. 16, 1958, No. 33082/58. Class 38 (5). [Also in Group XIX] A device sensitive to a wide range of accelerations consists of a mass 105 mounted on the end of rods 107 pivoted by means of a leafspring 109 between blocks 108, 110, a magnet 112 attracting the mass 105 and a spring 122 tending to turn mass 105 away from the magnet. When the acceleration of frame 102 reaches a certain value, determined by the adjustment of spring 122, the mass 105 moves away from magnet 112 towards magnet 113, lever 117 applying pressure to the operating pin 119 of a snap switch 120. The mass 105 can be returned manually to its initial position by means of plunger 131. The gravitational force on the device is predetermined by finding the setting of the spring 122 at which the device will actuate without any external acceleration, which setting is then taken as the zero setting. The device may be used as a peak accelerometer, or for actuating a warning system or shutting down a machine when excessive vibration occurs. A modification of the device which responds to vibratory acceleration at a given frequency has a further mass connected to mass 105 by means of a leaf-spring (Fig. 5, not shown). The device is then only actuated when the required acceleration occurs with the resonant frequency of the modified system.
GB33082/58A 1954-09-10 1958-10-16 Improvements in acceleration responsive device Expired GB893170A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DENDAT1074898D DE1074898B (en) 1958-10-16 Acceleration sensing device
US455297A US2942456A (en) 1954-09-10 1954-09-10 Acceleration responsive devices
GB33082/58A GB893170A (en) 1958-10-16 1958-10-16 Improvements in acceleration responsive device
FR778176A FR1215039A (en) 1958-10-16 1958-11-03 Improvements to devices responding to acceleration

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB33082/58A GB893170A (en) 1958-10-16 1958-10-16 Improvements in acceleration responsive device

Publications (1)

Publication Number Publication Date
GB893170A true GB893170A (en) 1962-04-04

Family

ID=10348327

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33082/58A Expired GB893170A (en) 1954-09-10 1958-10-16 Improvements in acceleration responsive device

Country Status (2)

Country Link
DE (1) DE1074898B (en)
GB (1) GB893170A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281551A (en) * 1963-03-01 1966-10-25 Bbc Brown Boveri & Cie Mechanical oscillatory switch
US4257747A (en) * 1978-12-15 1981-03-24 The Nash Engineering Company Monitoring machinery by detecting vibrations

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2412807C3 (en) * 1974-03-16 1981-12-03 Albert 7972 Isny Steinmeier Acceleration limit switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3281551A (en) * 1963-03-01 1966-10-25 Bbc Brown Boveri & Cie Mechanical oscillatory switch
US4257747A (en) * 1978-12-15 1981-03-24 The Nash Engineering Company Monitoring machinery by detecting vibrations

Also Published As

Publication number Publication date
DE1074898B (en) 1960-02-04

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