GB592851A - Improvements in or relating to speed governor controlled electric switches - Google Patents

Improvements in or relating to speed governor controlled electric switches

Info

Publication number
GB592851A
GB592851A GB1790744A GB1790744A GB592851A GB 592851 A GB592851 A GB 592851A GB 1790744 A GB1790744 A GB 1790744A GB 1790744 A GB1790744 A GB 1790744A GB 592851 A GB592851 A GB 592851A
Authority
GB
United Kingdom
Prior art keywords
weight
controlled electric
speed
relating
governor controlled
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
GB1790744A
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.)
S Smith and Sons Ltd
S Smith and Sons England Ltd
Original Assignee
S Smith and Sons Ltd
S Smith and Sons England Ltd
Filing date
Publication date
Application filed by S Smith and Sons Ltd, S Smith and Sons England Ltd filed Critical S Smith and Sons Ltd
Priority to FR915649D priority Critical patent/FR915649A/en
Publication of GB592851A publication Critical patent/GB592851A/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
    • H01H35/06—Switches operated by change of speed
    • H01H35/10—Centrifugal switches

Landscapes

  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

592,851. Speedometers. SMITH & SONS (ENGLAND), Ltd., S., and DAVIS, W. O. Sept. 19, 1944, No. 17907. [Class 106 (iii)] [Also in Groups XXVI and XXXVII] A speed-governor controlled electric switch applicable for use in a speed warning device for vehicles comprises a centrifugal weight 14 carried by a pin 12 pivoted in a rotating disc 10. The weight 14 carries an arm-13 to which is rigidly attached one end of a spring 19, the other end being connected to an adjustable anchorage 20. A weight 31 is also connected to the weight 14 and so arranged that a thrust is provided on the pivot 12 to balance the reaction of the spring on the pivot and thereby reduce friction. The weight 14 is held against the stop 15 until a certain speed is reached when it is unbalanced and moves outwards to the stop 16 and makes the contacts 17, 18 of the switch. The contact 17 is resilient and retained in position by a bridge 9. In a modification, two weights are provided and arranged on either side of the axis 11 and interconnected.
GB1790744A 1944-09-19 1944-09-19 Improvements in or relating to speed governor controlled electric switches Expired GB592851A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR915649D FR915649A (en) 1944-09-19 1945-10-10 Improvements to switches controlled by a speed or regulator switches

Publications (1)

Publication Number Publication Date
GB592851A true GB592851A (en) 1947-10-01

Family

ID=1733507

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1790744A Expired GB592851A (en) 1944-09-19 1944-09-19 Improvements in or relating to speed governor controlled electric switches

Country Status (1)

Country Link
GB (1) GB592851A (en)

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