GB912509A - Speed responsive electric switch mechanisms - Google Patents

Speed responsive electric switch mechanisms

Info

Publication number
GB912509A
GB912509A GB20644/60A GB2064460A GB912509A GB 912509 A GB912509 A GB 912509A GB 20644/60 A GB20644/60 A GB 20644/60A GB 2064460 A GB2064460 A GB 2064460A GB 912509 A GB912509 A GB 912509A
Authority
GB
United Kingdom
Prior art keywords
switches
spring
switch
speed
hub
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
GB20644/60A
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.)
Motors Liquidation Co
Original Assignee
Motors Liquidation 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 Motors Liquidation Co filed Critical Motors Liquidation Co
Publication of GB912509A publication Critical patent/GB912509A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/07—Indicating devices, e.g. for remote indication
    • G01P1/08—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers
    • G01P1/10—Arrangements of scales, pointers, lamps or acoustic indicators, e.g. in automobile speedometers for indicating predetermined speeds
    • 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
    • H01H35/10—Centrifugal switches

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Switches With Compound Operations (AREA)
  • Mechanisms For Operating Contacts (AREA)

Abstract

912,509. Speed-responsive switches. GENERAL MOTORS CORPORATION. June 13, 1960 [July 13, 1959], No. 20644/60. Class 38 (5). In a centrifugal switch mechanism two switches are actuated in succession in response to two predetermined speeds. In the mechanism, flyweights 32, pivoted on a flange 34 of hub 28, rotate with a shaft 30 and exert an axial force on the hub, causing it to move upwards and engage the outer race of bearing 50 so as to cause axial movement of an actuator 54 in which are pins 58 which engage recesses 60 in a floating lever 62. The lever co-operates with coil springs 70, 72 of different strengths which are mounted on brackets 76, 78 which also carry switches 88, 90. At a predetermined speed actuator 54 causes the floating lever to pivot about spring 72 and overcome spring 70, so engaging the operating plunger 92 of switch 88. At a higher speed the opposition of spring 72 is also overcome and switch 90 is operated. A tachometer may be driven by the shaft. More than two switches may be employed.
GB20644/60A 1959-07-13 1960-06-13 Speed responsive electric switch mechanisms Expired GB912509A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US826791A US2950367A (en) 1959-07-13 1959-07-13 Multiple speed switch mechanism

Publications (1)

Publication Number Publication Date
GB912509A true GB912509A (en) 1962-12-12

Family

ID=25247540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20644/60A Expired GB912509A (en) 1959-07-13 1960-06-13 Speed responsive electric switch mechanisms

Country Status (3)

Country Link
US (1) US2950367A (en)
DE (1) DE1131775B (en)
GB (1) GB912509A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3013496A (en) * 1960-09-02 1961-12-19 Harold G Wenig Centrifugal drive means for missile and fuze applications
DE1273037B (en) * 1960-11-08 1968-07-18 Walter Holzer Pressure dependent electrical switch
US3162735A (en) * 1961-10-24 1964-12-22 William J Williams Centrifugal control having a pivotally mounted pressure plate mounting a plurality of pivot plate switch actuators
US3472100A (en) * 1967-02-28 1969-10-14 Arkady Petrovich Nedyalkov Device for automatic control over gear shifting in gearbox
IT964065B (en) * 1971-08-24 1974-01-21 Actuated Controls Ltd IMPROVEMENTS TO PRESSURE SENSITIVE SWITCHES
US4467155A (en) * 1982-05-06 1984-08-21 Dresser Industries, Inc. Electrical switch apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2457192A (en) * 1945-04-07 1948-12-28 William J Williams Governor with switch control
US2621267A (en) * 1948-12-23 1952-12-09 Bendix Aviat Corp Switch mechanism
US2720563A (en) * 1954-03-11 1955-10-11 William J Williams Variable control for speed actuated multiple switch mechanism
US2853571A (en) * 1955-05-11 1958-09-23 Smiths America Corp Speed-responsive switching devices

Also Published As

Publication number Publication date
US2950367A (en) 1960-08-23
DE1131775B (en) 1962-06-20

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