GB274815A - Electrical contact relays - Google Patents

Electrical contact relays

Info

Publication number
GB274815A
GB274815A GB9641/27A GB964127A GB274815A GB 274815 A GB274815 A GB 274815A GB 9641/27 A GB9641/27 A GB 9641/27A GB 964127 A GB964127 A GB 964127A GB 274815 A GB274815 A GB 274815A
Authority
GB
United Kingdom
Prior art keywords
electrical contact
class
contact relays
heattreated
assignees
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
GB9641/27A
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.)
Electrical Research Products Inc
Original Assignee
Electrical Research Products Inc
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 Electrical Research Products Inc filed Critical Electrical Research Products Inc
Publication of GB274815A publication Critical patent/GB274815A/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
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
    • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Linear Motors (AREA)
  • Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)

Abstract

274,815. Electrical Research Products, Inc., (Assignees of Curtis, A. M.). July 24, 1926, [Convention date]. Electromagnets. - The armature 34 and pole-pieces 52, 53 of an electromagnetic relay for use in high-speed telegraphy are formed of " Permalloy " laminations separated by sheets of heat-resisting material such as mica, so that these parts may be heattreated after assembly. Specifications 184,804, 188,688, [Class 36, Electricity, Conducting &c.]. 243,787, [Class 40 (iv), Telephones &c.], and 260.946 are referred to.
GB9641/27A 1926-07-24 1927-04-07 Electrical contact relays Expired GB274815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US124595A US1757703A (en) 1926-07-24 1926-07-24 Electrical contact device

Publications (1)

Publication Number Publication Date
GB274815A true GB274815A (en) 1928-07-09

Family

ID=22415776

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9641/27A Expired GB274815A (en) 1926-07-24 1927-04-07 Electrical contact relays

Country Status (5)

Country Link
US (1) US1757703A (en)
DE (1) DE568950C (en)
FR (1) FR632804A (en)
GB (1) GB274815A (en)
NL (1) NL27296C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2629031A (en) * 1946-08-17 1953-02-17 Ballman Engineering Company Electromagnetic switch
US2585040A (en) * 1949-03-23 1952-02-12 Frederick Hart & Co Inc Electromagnetic recording head

Also Published As

Publication number Publication date
FR632804A (en) 1928-01-16
US1757703A (en) 1930-05-06
NL27296C (en)
DE568950C (en) 1933-01-31

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