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US2825239A - Interlocking electromagnetic relay structures - Google Patents

Interlocking electromagnetic relay structures Download PDF

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Publication number
US2825239A
US2825239A US532331A US53233155A US2825239A US 2825239 A US2825239 A US 2825239A US 532331 A US532331 A US 532331A US 53233155 A US53233155 A US 53233155A US 2825239 A US2825239 A US 2825239A
Authority
US
United States
Prior art keywords
lever
levers
relay
locking
control
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
US532331A
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English (en)
Inventor
Lauterer Anton
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US2825239A publication Critical patent/US2825239A/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
    • H01H50/32—Latching movable parts mechanically
    • H01H50/323—Latching movable parts mechanically for interlocking two or more relays
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T74/00—Machine element or mechanism
    • Y10T74/20—Control lever and linkage systems
    • Y10T74/20207—Multiple controlling elements for single controlled element
    • Y10T74/20238—Interlocked

Definitions

  • the undesired friction between the armature connecting links is greatly reduced by providing separate locking levers in addition to the control levers which are actuated by the respective armatures, such locking levers being actuated by the associated control levers and serving to latch the respective other control lever.
  • the locking levers are rotated by the associated control levers by means of shoulders provided on the latter, the arrangement being such that these shoulders engage the control lever during only a small part of the travel of the control lever thus reducing the frictional resistance.
  • control levers are connected to the respective armatures by means of connecting links which are secured at one end to the respective armature and at the other end are embraced by fork-like extensions of the control levers.
  • connecting links which are secured at one end to the respective armature and at the other end are embraced by fork-like extensions of the control levers.
  • Fig. 1 is a partly diagrammatic front view of the interlocking structure utilizing my invention.
  • Fig. 2 is an end view of one of the pair of locking levers used in the showing of Fig. 1.
  • FIG. l in which only sufficient of two relay systems is illustrated for the purpose of explaining the invention.
  • Armatures 1a and 11 control the respective contact sets 2a and 2b in any known manner (as indicated by the broken lines) and are arranged to be attracted by the energization of relay windings 3a and 3b.
  • the armatures 1a and lb are coupled by connecting links 4a and 4b to two-armed control levers 5a and 5b pivotally mounted on fixed pivots 6a and 6b.
  • Single-armed locking levers 7a and 7b are also respectively mounted on pivots 6a and 6! but their free ends extend outwardly further than do the free ends of the control levers 5a, 5b.
  • the locking levers 7a and 7b are bent so as to cross the control levers 5a and 5b, as shown in Fig. l, and the control levers 5a and 5b are provided with shoulders 8a, 8b and 9a, 9b for actuating the locking levers 7a and 7b.
  • the locking levers 7a and 7b have an end profile similar to that shown in Fig. 2, there being outwardly extending portions 10b and 1111 which cooperate with shoulders 8b and 9b.
  • the profile of the locking lever 7a is a mirror image of the lever 7b and is provided with outwardly extending portions 10a and 11a, respectively, which portions cooperate with the shoulders and 9a, respectively.
  • the locking levers 7a, 7b are provided with apertures such as 12!) in Fig. 2 through which the pivot 622 may pass. It will be understood that locking lever 7a is provided with a similar aperture.
  • the right-hand relay system is shown as attracted and latched, while the left-hand system is dropped off, the control lever 5b of the right-hand system having been latched by the locking lever 7a of the lefthand system in the preceding operation.
  • the winding 3a of the left-hand system is energized and the armature 1a attracted.
  • the left-hand end of the control lever 5a will be lifted and the right-hand end of that lever will clear the top surface of lever 5b and be depressed.
  • the shoulder 9a will engage the locking lever 7a and thereby remove the latch from the control lever 5b of the other relay system.
  • each relay comprising a control lever, a locking lever and means to couple said control lever to the relay armature for actuation thereby, a pair of spaced, fixed pivots disposed intermediate said relays, each control lever fulcrumed on one of said fixed pivots adjacent its associated relay at a point intermediate the ends of said lever, each locking lever having an end pivotally mounted on the same fixed pivot as its associated control lever and having its other end adjacent an end of the control lever associated with the other relay, means for selectively setting each of said locking levers into locking relation with the control lever of the other relay and means for releasing a set locking lever, said setting and releasing means comprising separate lost-motion means between each locking lever and its associated control lever, whereby a set locking lever is adapted to be released upon the attainment by its associated control lever of a predetermined angular position about its pivot upon operation of the associated armature and whereby the unset locking lever is adapted to be set upon the attainment by its associated control
  • each of said control levers is shaped in the form of an obtuse angle and said fulcrum point is at the point of intersection of the sides thereof, said control levers mounted in reversed position with respect to each other.
  • each of said locking levers has a length greater than the length of a side of its associated control lever.
  • said lost-motion means comprises a pair of shoulders on each of said control levers extending outwardly .from opposite edges of a side thereof intermediate the ends thereof, and a reverse bend in said locking levers each portion of the bend adapted to be acted upon by a different shoulder of said pair only in the last portion of the angular rotation of the respective control lever.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
US532331A 1954-09-11 1955-09-02 Interlocking electromagnetic relay structures Expired - Lifetime US2825239A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL11521U DE1738679U (de) 1954-09-11 1954-09-11 Einrichtung zur gegenseitigen steuerung und verriegelung der beiden anker von stuetzrelais.

Publications (1)

Publication Number Publication Date
US2825239A true US2825239A (en) 1958-03-04

Family

ID=32725075

Family Applications (1)

Application Number Title Priority Date Filing Date
US532331A Expired - Lifetime US2825239A (en) 1954-09-11 1955-09-02 Interlocking electromagnetic relay structures

Country Status (3)

Country Link
US (1) US2825239A (es)
BE (1) BE541217A (es)
DE (1) DE1738679U (es)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164757A (en) * 1961-12-12 1965-01-05 American Mach & Foundry Electromagnetic operators
US4876418A (en) * 1987-06-26 1989-10-24 La Telemecanique Electrique Device for rendering contactors electrically and mechanically inoperative

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19858619C1 (de) * 1998-12-18 2000-08-24 Fortuna Spezialmaschinen Gmbh Schärf- oder Spaltmaschine zum Bearbeiten von nichtmetallischen flächigen Werkstücken

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US948583A (en) * 1908-05-07 1910-02-08 W F & John Barnes Company Gearing.
GB173922A (en) * 1920-10-29 1922-01-19 Adolph Harry Railing Improved means for interlocking electric switches
US2419258A (en) * 1944-01-07 1947-04-22 Gen Railway Signal Co Electric circuit for polarized compound electromagnet
US2604796A (en) * 1950-09-08 1952-07-29 Westinghouse Electric Corp Interlock
US2610274A (en) * 1949-06-29 1952-09-09 Gen Control Company Switch actuating mechanism

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US948583A (en) * 1908-05-07 1910-02-08 W F & John Barnes Company Gearing.
GB173922A (en) * 1920-10-29 1922-01-19 Adolph Harry Railing Improved means for interlocking electric switches
US2419258A (en) * 1944-01-07 1947-04-22 Gen Railway Signal Co Electric circuit for polarized compound electromagnet
US2610274A (en) * 1949-06-29 1952-09-09 Gen Control Company Switch actuating mechanism
US2604796A (en) * 1950-09-08 1952-07-29 Westinghouse Electric Corp Interlock

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164757A (en) * 1961-12-12 1965-01-05 American Mach & Foundry Electromagnetic operators
US4876418A (en) * 1987-06-26 1989-10-24 La Telemecanique Electrique Device for rendering contactors electrically and mechanically inoperative

Also Published As

Publication number Publication date
DE1738679U (de) 1957-01-31
BE541217A (es)

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