US2562091A - Relay - Google Patents

Relay Download PDF

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Publication number
US2562091A
US2562091A US693595A US69359546A US2562091A US 2562091 A US2562091 A US 2562091A US 693595 A US693595 A US 693595A US 69359546 A US69359546 A US 69359546A US 2562091 A US2562091 A US 2562091A
Authority
US
United States
Prior art keywords
springs
relay
armature
contact
core
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
US693595A
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English (en)
Inventor
Henry C Harrison
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
Bell Telephone Laboratories 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
Priority to BE473972D priority Critical patent/BE473972A/xx
Priority to NL71170D priority patent/NL71170C/xx
Application filed by Bell Telephone Laboratories Inc filed Critical Bell Telephone Laboratories Inc
Priority to US693595A priority patent/US2562091A/en
Priority to FR947599D priority patent/FR947599A/fr
Priority to GB23713/47A priority patent/GB626435A/en
Application granted granted Critical
Publication of US2562091A publication Critical patent/US2562091A/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
    • H01H50/54—Contact arrangements
    • H01H50/56—Contact spring sets

Definitions

  • This invention relates to contact making devices and particularly to improvements in relay structures for use in telephone systems.
  • An object of the invention is to simplify the construction of relay devices and to decrease the cost thereof and another object is to increasel the facility of such relays to establish diiierent combinations of electrical make and break connections. Still another object is to increase the efficiency of operation and self-adjustment of the parts andV to decrease maintenance costs.
  • the applicants invention relates to a multicontact relay device that may be adjusted to various purposes in the telephone art for the establishing or breaking of connections in various groups without extensive changes and without increasing its size. To attain the objects of the invention above set forth the applicant has des.
  • each bottom spring consists of a pair of round wires.
  • These latter wires may be of slightly different diameters to cause the periodicity of vibration of the two wires to be slightly diierent to thereby obviate contact chatter when the wires are engaged or disen gaged.
  • the insulating member is provided with slots through which said contact springs project with some of the top springs firmly secured to the member and with others of these top springs loosely guided in their respective slots. The member and armature are therefore suspended on such top springs as are attached to the member so that no other suspension means are required for the armature.
  • a crossbar of insulating material is provided between said two layers of springs and said cross bar and the slots' in the insulating member are so positioned as to guide the contact springs during the travel of said springs.
  • said springs In the case of the top springs secured to the member, when the armature is attracted by the core, said springs make contact with the corresponding bottom springs, while in the case of the top springs not secured to the member but guided in slots therein, when the armature is attracted by the core, said springs are disengaged from the corresponding bottom springs that are secured to and moved by the member.
  • the springs of the top Ylayer are molded in a single insulation block and the springs in the bottom layer are also molded in another single corresponding block, these two blocks being secured one on top of the other and to another insulation block in which the rear end of the core is secured.
  • a top cover member and a bottom cover member are securedl around these blocks and extend approximately halfway over the core, coil and springs and a front cover is also provided which is telescoped' over said top and bottom covers to completely enclose the relay structure.
  • the front cover is provided at its front end with a window for the ready observance of the operation of the relay.
  • f y The upper and lower blocks in which the springs are embedded are serrated at their rear edges, and a contact spring protrudes from each projection and from each recess in each layer so as to provide a greater separation distance ben, tween the terminal ends of springs in the layers and thereby decrease the danger of short-circuiting between the terminals.
  • Fig. l shows a top view of a relay embodying the' applicants invention with part of the top and front cover broken away;
  • Fig. l2 is a cross-section taken on line 2-2 'of Fig. 1;
  • Fig@ 3 - is a side view ⁇ of the relay shown iny Figs.-
  • Fig 4 is a front view of the relay with the front cover partly cut away;
  • Fig. 5 is a rear View of the relay
  • Fig. 6 is a top view of the relay with the covers in place
  • Fig. 7 is a cross-section taken on the line 1 1 of Fig. 2;
  • Fig. 8 is a front view of the relay showing the window
  • Fig. 9 showsv a set of normally made contact springs and the armature and operating member
  • Fig. l shows a set of normally open contact springs and the armature and operating member.
  • the core structure I consists of a rear portion 2 and three forwardly extending prongs or pole-piece members, the central one designated 3 serving as a core and the side members designated 4 and 5 serving as return pole-pieces.
  • This core is laminated to reduce hysteresis losses, but a solid core could be used.
  • a coil 6 with the usual spoolheads at opposite ends.
  • the rear end 2 of the core is mounted in an insulation block 1 which block, in turn holds a nut 8 in which a screw 9 is threaded and by means of which the relay may be mounted on a support not shown.
  • the coil terminals III and I I are embedded in this blocky 1 and extend forwardly as shown at I2.
  • this block 1 On top of this block 1 is mounted another insulation block I3 in which a bottom layer of springs I4 is molded and on the top ofblock I3 is another insulation block I in which a top layer ⁇ of springs I6 is molded.
  • the rearward ends of these blocks are so serrated that alternate springs have their terminals extending from projections or extensions in the blocks I3 and I5 as shown at I8 while the other terminals extend from depressions in the ends of the blocks as shown at I9. This is for the purpose of providing a maximum distance between adjacent springs to reduce the danger of short circuits.
  • Each of the top springs consists of a single wire with a nat piece Welded thereto while each of the bottom springs consists of a pair of wires as shown for example at in Fig. 1 or at 26 in Fig. 4.
  • the two wires in each pair are of a slightly different diameter so as to reduce the probability of simultaneous 'reopening due to vibration when actuated.
  • armature 21 Across the front or pole-piece ends 3, 4 and 5 of the core is located an armature 21.
  • This member 30 is provided with various slots or openings through which all of the springs project. Certain of the top springs are actually connected to the block as shown, for example, for those top springs I6 associated with contact strips 35 (Fig. 4).
  • Fig. 10 The method of securing one of these springs is shown in Fig. 10.
  • the forward at piece 20 is provided with a loop 36 and is welded to the corresponding spring I6 after having been looped over a cross-portion 31 of the member 30 while the spring I6 itself extends through a slot 38 so that the member 30 is held rmly between the piece 2
  • the armature 21 is suspended by those top springs IE associated with contact strip and by any other top springs which are normally in an open position as shown in Figs. 4 and 10.
  • the other top springs I6 associated with contact strips such as 3,4, also provided with forward flat pieces 20, and
  • loops 3B are free to move in guide slots in member 30 and are normally tensioned to rest on the top of the cross-rod or bar 42 formed of insulating material and mounted transversely in the relay top cover 55.
  • the lower spring I4, companion to spring I6 is guided in the slot 43 in member 30 and is caused to be lowered by the cross portion 44 of the member 3U when actuated, while in Fig. 10 the lower spring I4 companion to spring I6 in this figure is guided in the slot 38 and normally tensioned to rest against the under surface of the cross bar 42.
  • the springs shown in Fig. 9 are normally in contact with each other and the springs shown in Fig. 10 are normally separated.
  • This cross-bar 42 is so located in relation to these springs, and to the slots and openings in member 30 that, as in the case of Fig. 9 where the mating springs are normally in contact, when the armature is attracted by the core the lower spring I4 will be moved by the member 3D to separate from the upper spring while the upper spring rests against the upper surface of the bar 42.
  • the armature is operated and the springs are attached to the member 3D as shown in Fig. 10
  • a connection is made between springs I4 and I6 as the upper spring I6 is moved downwardly by the member 30 and makes contact with the lower spring I4.
  • the upper cover 55 covers the upper surface of the relay and extends down over the sides as shown at 56 and 51 in Fig. '7 to the bottom of the relay and the corresponding bottom cover 58, covers the undersurface of the relay and has side projections or members 59 and 60 on the inside of the corresponding side members 56 and 51 of the upper cover. blocks 1, I3 and I5 completely and also part of the relay up to approximately half the distance towards the front of the relay structure. Over these two covers is telescoped thefront cover 62 bearing side members 53 and 54 and provided at its front end with a window 63 to enable the observation of the operation of the relay. In this manner the complete relay is entirely enclosed by a dustproof covering.
  • a core a coil associated with said core, a rst plurality of contact carrying springs arranged in a row, a second plurality'v
  • These two covers enclose the insulationv of n fruitingl contact carrying springs arra'rigedili; arow adjacent'said frst'sprngs, an operating member of insulatingY material having slots therein through whichsaidsprings extend with some of said rst springs secured to said member while others are loosely guided in slots thereof, an armature zsecuredto said member, anda' crossbar located between said rows of springs, said slots in saidmemberl and the bar being so arranged in relation to saidsprings that such rst springs' as are secured to said member makecontact with mating second springs when said armature is attracted to said core whereas the-other flrst'springs which are not secured to said member ⁇ are' separated from mating second contacts when said'armature is attracted to said core,
  • a hat laminated core structure having a base portion and a central core member and two return pole-piece members extendging from said base portion, a coil surrounding the central core member, two terminal rods for said coil, an insulation block secured to the underside of the base of said core in which said rods are molded, a plurality of twin sets of bottom wire contact springs arranged in a row, an insulation block secured to the upper side of the base and in which said sets of bottom contact springs are molded, a row of top wire contact springs one wire spring for each twin set of bottom wire contact springs, an insulation block secured on the top of said upper insulation block and in which said top wire springs are molded, an operating member of insulating material having slots therein through which said bottom and top contact springs project toward the front of the relay with some of said top springs secured to said operating member while of the remaining top and bottom springs some are sldably guided in corresponding slots and others are xedly controlled for movement by slots in said member, an armature secured to
  • -A-.relay comprising a core, a coil, an armature, an operating member of insulating material attached to said armature, a set of single contact-carrying springs each comprising a single round wire, a set of pairs of mating contact carrying springs each pair comprising two round wires of unequal diameters, some of both of said sets of springs being attached to and operable by said operating member and some being guidable in slots in said operating member, a fixed stop member for said springs, said operating member and said fixed stop member being so arranged as to cooperate with said springs so that when the armature is attracted by said core on the energization of said coil, the ones of said single contact-carrying springs attached to the operating member establish connections with companion ones of said pairs of springs guided in slots in said operating member and the ones of said pairs of springs attached to said operating member break connections with companion ones of said single springs guided in slots in said operating member.
  • a core a coil, an armature, an operating member of insulating material attached to said armature, a iixed stop member and contact carrying springs some serving also as suspension springs for said operating member and armature by being attached to the operating member, while others are guided in slots in said operating member and still others are movable by said operating member by passing through slots in said operating member, said contact carrying springs being so arranged in relation to the operating member and to the xed stop member that when the armature is attracted on the energization of said coil, the springs serving as suspension springs make contact with some springs guided in the slots and the springs movable by said operating member break contact with other of said springs guided in the slots.
  • a relay a core, a coil, an armature, an operating member attached to said armature, molded blocks of insulation material secured to said core, contact springs consisting of twin wires molded in one of said blocks and arranged in a straight row in a lower layer, contact springs consisting of single wires molded in another of said molded blocks and with a ilat metal strip attached to each wire serving as a contact member and arranged in a straight row in an upper layer with each contact spring pair in said lower layer being located'opposite the metal strip of a corresponding spring ⁇ wire in the upper layer, certain contact springs in the upper layer being attached to said operating member to serve also as suspension means for said operating member and armature, While thev other of said springs in the upper layer are arranged tofbe guided in slots in said operating member and with the companion spring pairs in the lower layer of the first mentioned springs in .the upper layer arranged in openings in the operating member to be guided thereby and with the Acompanion spring pairs in the lower layeer

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Breakers (AREA)
US693595A 1946-08-28 1946-08-28 Relay Expired - Lifetime US2562091A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE473972D BE473972A (no) 1946-08-28
NL71170D NL71170C (no) 1946-08-28
US693595A US2562091A (en) 1946-08-28 1946-08-28 Relay
FR947599D FR947599A (fr) 1946-08-28 1947-06-06 Relais
GB23713/47A GB626435A (en) 1946-08-28 1947-08-27 Improvements in relays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US693595A US2562091A (en) 1946-08-28 1946-08-28 Relay

Publications (1)

Publication Number Publication Date
US2562091A true US2562091A (en) 1951-07-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
US693595A Expired - Lifetime US2562091A (en) 1946-08-28 1946-08-28 Relay

Country Status (5)

Country Link
US (1) US2562091A (no)
BE (1) BE473972A (no)
FR (1) FR947599A (no)
GB (1) GB626435A (no)
NL (1) NL71170C (no)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682585A (en) * 1952-05-24 1954-06-29 Bell Telephone Labor Inc Electromagnetic relay
US2844686A (en) * 1951-11-17 1958-07-22 Itt Electromagnetic counting device and contact bank
US2924684A (en) * 1955-03-11 1960-02-09 Claesson Per Harry Elias Contact device
US2982833A (en) * 1952-08-09 1961-05-02 Vigren Sten Daniel Electric control magnets
US3001047A (en) * 1958-04-24 1961-09-19 Siemens And Halske Ag Berlin A Electromagnetic relay
US3020375A (en) * 1959-04-27 1962-02-06 Oak Mfg Co Electric switch
US3035135A (en) * 1955-06-21 1962-05-15 Daco Instr Company Relays and solenoids
US3333216A (en) * 1965-10-21 1967-07-25 Automatic Elect Lab Unencapsulated reed contact relay
US3600641A (en) * 1969-06-18 1971-08-17 Int Standard Electric Corp Electromagnetic pulse counter
US8231325B1 (en) * 2011-06-28 2012-07-31 Walton Thomas E Deer loader

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US991829A (en) * 1906-06-06 1911-05-09 North Electric Co Electrical relay.
US1521591A (en) * 1921-06-20 1925-01-06 Western Electric Co Electromagnetic device
US1647792A (en) * 1921-06-20 1927-11-01 Western Electric Co Switching device
US1812545A (en) * 1928-08-24 1931-06-30 Ericsson Telefon Ab L M Electromagnetic relay
US2076115A (en) * 1932-06-20 1937-04-06 Evr Eclairage Vehicules Rail Comb regulator for electric machines
US2077622A (en) * 1935-05-24 1937-04-20 Gen Railway Signal Co Electrical contact
US2377137A (en) * 1943-03-30 1945-05-29 Gen Electric Electromagnetically operated switch
US2427483A (en) * 1944-07-03 1947-09-16 Florio G Flosi Multiple switch
US2442500A (en) * 1943-03-17 1948-06-01 Weston Electrical Instr Corp Relay contact system

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US991829A (en) * 1906-06-06 1911-05-09 North Electric Co Electrical relay.
US1521591A (en) * 1921-06-20 1925-01-06 Western Electric Co Electromagnetic device
US1647792A (en) * 1921-06-20 1927-11-01 Western Electric Co Switching device
US1812545A (en) * 1928-08-24 1931-06-30 Ericsson Telefon Ab L M Electromagnetic relay
US2076115A (en) * 1932-06-20 1937-04-06 Evr Eclairage Vehicules Rail Comb regulator for electric machines
US2077622A (en) * 1935-05-24 1937-04-20 Gen Railway Signal Co Electrical contact
US2442500A (en) * 1943-03-17 1948-06-01 Weston Electrical Instr Corp Relay contact system
US2377137A (en) * 1943-03-30 1945-05-29 Gen Electric Electromagnetically operated switch
US2427483A (en) * 1944-07-03 1947-09-16 Florio G Flosi Multiple switch

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2844686A (en) * 1951-11-17 1958-07-22 Itt Electromagnetic counting device and contact bank
US2682585A (en) * 1952-05-24 1954-06-29 Bell Telephone Labor Inc Electromagnetic relay
US2982833A (en) * 1952-08-09 1961-05-02 Vigren Sten Daniel Electric control magnets
US2924684A (en) * 1955-03-11 1960-02-09 Claesson Per Harry Elias Contact device
US3035135A (en) * 1955-06-21 1962-05-15 Daco Instr Company Relays and solenoids
US3001047A (en) * 1958-04-24 1961-09-19 Siemens And Halske Ag Berlin A Electromagnetic relay
US3020375A (en) * 1959-04-27 1962-02-06 Oak Mfg Co Electric switch
US3333216A (en) * 1965-10-21 1967-07-25 Automatic Elect Lab Unencapsulated reed contact relay
US3600641A (en) * 1969-06-18 1971-08-17 Int Standard Electric Corp Electromagnetic pulse counter
US8231325B1 (en) * 2011-06-28 2012-07-31 Walton Thomas E Deer loader

Also Published As

Publication number Publication date
FR947599A (fr) 1949-07-06
GB626435A (en) 1949-07-14
NL71170C (no)
BE473972A (no)

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