GB767222A - Improvements in and connected with electromagnetic contactors - Google Patents

Improvements in and connected with electromagnetic contactors

Info

Publication number
GB767222A
GB767222A GB1789654A GB1789654A GB767222A GB 767222 A GB767222 A GB 767222A GB 1789654 A GB1789654 A GB 1789654A GB 1789654 A GB1789654 A GB 1789654A GB 767222 A GB767222 A GB 767222A
Authority
GB
United Kingdom
Prior art keywords
switch
projection
disclosed
spindle
actuating
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
GB1789654A
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.)
JA Crabtree and Co Ltd
Original Assignee
JA Crabtree and Co Ltd
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 JA Crabtree and Co Ltd filed Critical JA Crabtree and Co Ltd
Priority to GB1789654A priority Critical patent/GB767222A/en
Publication of GB767222A publication Critical patent/GB767222A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/86—Means for introducing a predetermined time delay between the initiation of the switching operation and the opening or closing of the contacts
    • H01H50/88—Mechanical means, e.g. dash-pot

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switches With Compound Operations (AREA)

Abstract

767,222. Electromagnetic switches. CRABTREE & CO., Ltd., J. A., and WINTLE, T. D. G. May 13, 1955 [June 18, 1954], No. 17896/54. Class 38(5) Mounted in the cover 1 of a three-pole contactor 2 as disclosed in Specification 633,393 is a pneumatic time-delay mechanism as disclosed in Specification 681,851 [Group XXXII] this mechanism being actuated by a projection 10 of a horizontally-slidable armature carrier 5 when the armature 4 is attracted to the magnet 3 to close bridging contacts 6, the mechanism actuating a micro switch 19. The projection 10 operates a spring-biased lever 11 to rotate a spindle 16 retarded by the pneumatic device 14, the cranked end of the spindle actuating the switch 19 through an arm 17 and a blade 18. When the contactor opens the switch 19 immediately resets. The time delay is adjustable by a knob 15.
GB1789654A 1954-06-18 1954-06-18 Improvements in and connected with electromagnetic contactors Expired GB767222A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1789654A GB767222A (en) 1954-06-18 1954-06-18 Improvements in and connected with electromagnetic contactors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1789654A GB767222A (en) 1954-06-18 1954-06-18 Improvements in and connected with electromagnetic contactors

Publications (1)

Publication Number Publication Date
GB767222A true GB767222A (en) 1957-01-30

Family

ID=10103143

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1789654A Expired GB767222A (en) 1954-06-18 1954-06-18 Improvements in and connected with electromagnetic contactors

Country Status (1)

Country Link
GB (1) GB767222A (en)

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