US1478045A - Relay - Google Patents

Relay Download PDF

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Publication number
US1478045A
US1478045A US425100A US42510020A US1478045A US 1478045 A US1478045 A US 1478045A US 425100 A US425100 A US 425100A US 42510020 A US42510020 A US 42510020A US 1478045 A US1478045 A US 1478045A
Authority
US
United States
Prior art keywords
armature
core
relay
spring
contact
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 - Lifetime
Application number
US425100A
Other languages
English (en)
Inventor
Edward D Mead
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.)
AT&T Corp
Original Assignee
Western Electric Co 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 Western Electric Co Inc filed Critical Western Electric Co Inc
Priority to US425100A priority Critical patent/US1478045A/en
Priority to FR543714D priority patent/FR543714A/fr
Application granted granted Critical
Publication of US1478045A publication Critical patent/US1478045A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01H50/34—Means for adjusting limits of movement; Mechanical means for adjusting returning force

Definitions

  • This invention relates to relays.
  • An object of the invention is to provide a relay of compact and rug (1 construction and which may be adjuste so that it will reliably follow very rapid pulses of current.
  • Another object is to provide a relay having adjustments which permit the operatin characteristics and particularly the spec of pick-up and release of the armature to be widely varied.
  • the relay is constructed with a high permeability U-shaped core having two adjacent pole pieces, each of which is arranged to exert a tractive force on a light armature.
  • the core is excited by an operating winding that is adapted to produce a number of ampere turns which is large in comparison to the cross section of the core Associated with the armature are a chatterless contact number, a retractile spring and an adjustable support which is arranged so that the air gaps can be. varied.
  • relays constructed in accordance with this invention is in connection with automatic and semi-automatic telephone systems where it has been found necessary to provide means for opening and closing circuits with great rapid1ty.
  • a particular application of this relay' may be in a trunk circuit that has been associated with a subscribers line by means of line finder,
  • this relay being used to follow the current pulses from a subscribers dial and operate circuit contacts controlling selector apparatus to complete the talking circuits desired by the subscriber.
  • Flg. 1 represents a perspective view of t e relay in released position.
  • Fig. 2 represents an alternate method of mounting the armature that maybe desirable under certain conditions.
  • a relay comprising an energizing coil 1, a U-shaped magnet core 3, said coil being wound on one leg of this core, and said core having a bent-over portion or car forming a magnetic pole 4 on its unwound portion in such a position as to bring the face of the ear in the same plane as the face of the other pole of the magnet structure,- Co-operating with both pole pieces and adjacent thereto on the side is an armature 5 adjustably supported by support member 6 which is heldbetween the before mentioned bent pole and a non-magnetic bridge? and is held in proper alignment by guide screw 8 in slot 9 of the armature connector 6.
  • armature 5 adjustably supported by support member 6 which is heldbetween the before mentioned bent pole and a non-magnetic bridge? and is held in proper alignment by guide screw 8 in slot 9 of the armature connector 6.
  • the armature is hinge supported in the connector 6 on a pin' 10 held 1n said connector and connected to the armature by gripping piece '11 which is rigidly fastened on the armature.
  • a retractile spring 12 of flat U-shape is screw retained on the armature 5, and so mounted as to bring the body of the spring opposite a hole or perforation 13 in the armature.
  • a bent flat spring contact carrying member 14 is mounted on the armature intermediate the prongs of retractile spring 12, and carries at its outer end a contact 15. This contact carrying member is su ported in the proper position by a centrally located lug or car 16 on the free end of the armature, bent toward the magnet core.
  • adjustable fixed contacts 18 mounted in screws threaded into retaining and current carrying members 20 extending from the front of the relay to the rear, said members 20 serving also to securely maintain the contacts 18 1n proper position.
  • a spring adjusting screw 17, cooperating with nonmagnetic bridge 7 passes through the hole 13 in the armature 5 and comes in contact with the retractile spring 12 in such a position as to adjust the stress in this spring, and thereby adjusts the operating characteristics of the relay.
  • Adjustment in position of armature connector 6 will obviously give another method of controlling the operating characteristics of the relay. This adjustment particularly affects the speed of pickup and release of the armature
  • Fig. 2 is disclosed the same general features of the mechanism as in Fig. 1 with the exception of the means for adjustably supporting the armature.
  • This alternate means consists of a flat metallic nonmagnetic med 20 fixedly attached to the armature and adjustably attached to the ole iece in the same manner as described in tea Fig. 1.
  • Reed 20 is preferably made of thin sheet phosphor-bronze and introduces a minor sprin action in the armature'system.
  • an electromagnetic relay the combination of an energizing coil, a U-shaped ma netic core, an armature short in length, and light in weight therefor, an adjustable connector of nonmagnetic material for supporting said armature from one pole of said core in a position adjacent to both core poles, a contact member thereon, adjustable contact points cooperating therewith and current carrying members for said adjustable contact oints.
  • an e ectromagnetic relay the combination of an energizing coil, a U-shaped magnetic core, a short and light armature supported by a reed spring which is adjustable in a plane substantially perpendicular to the armature, a resilient contact member on said armature, a contact point therein, adjustable contact points cooperating therewith and current carrying members for said adjustable contact points 4.
  • an electromagnetic relay the combination of an energizing coil, a U-shaped magnetic core, a short and light armature adjustably supported from one ole of said core by a reed which is adjustab e in a plane substantially perpendicular to the armature,
  • an electromagnetic relay the combination of an energizing coil, a U-shaped' core therefor, a perforated armature on one side thereof carrying a fiat U-shaped retractile spring opposite the perforation in said armature, and a, bent contact member attached intermediate the rongs of said spring, a non-magnetic bri ge joining the core poles on the opposite side from said armature, an adjusting screw threaded through said bridge in line with and extending through said perforation in said armature and making contact with said U-shaped retractile spring in such manner as to thereby adjust the stress therein, adjustable contact points and current carrying members therefor.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Breakers (AREA)
US425100A 1920-11-19 1920-11-19 Relay Expired - Lifetime US1478045A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US425100A US1478045A (en) 1920-11-19 1920-11-19 Relay
FR543714D FR543714A (fr) 1920-11-19 1921-11-19 Perfectionnements apportés aux relais électro-magnétiques

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US425100A US1478045A (en) 1920-11-19 1920-11-19 Relay

Publications (1)

Publication Number Publication Date
US1478045A true US1478045A (en) 1923-12-18

Family

ID=23685149

Family Applications (1)

Application Number Title Priority Date Filing Date
US425100A Expired - Lifetime US1478045A (en) 1920-11-19 1920-11-19 Relay

Country Status (2)

Country Link
US (1) US1478045A (fr)
FR (1) FR543714A (fr)

Also Published As

Publication number Publication date
FR543714A (fr) 1922-09-08

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