US1766611A - Relay - Google Patents

Relay Download PDF

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Publication number
US1766611A
US1766611A US16747A US1674725A US1766611A US 1766611 A US1766611 A US 1766611A US 16747 A US16747 A US 16747A US 1674725 A US1674725 A US 1674725A US 1766611 A US1766611 A US 1766611A
Authority
US
United States
Prior art keywords
relay
core
armature
shell
track
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
US16747A
Other languages
English (en)
Inventor
Salisbury M Day
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.)
SPX Technologies Inc
Original Assignee
General Railway Signal Co
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 BE332737D priority Critical patent/BE332737A/xx
Priority to NL19814D priority patent/NL19814C/xx
Application filed by General Railway Signal Co filed Critical General Railway Signal Co
Priority to US16747A priority patent/US1766611A/en
Priority to GB7072/26A priority patent/GB249511A/en
Priority to FR612830D priority patent/FR612830A/fr
Application granted granted Critical
Publication of US1766611A publication Critical patent/US1766611A/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
    • H01H51/00—Electromagnetic relays
    • H01H51/30—Electromagnetic relays specially adapted for actuation by AC
    • H01H51/32—Frequency relays; Mechanically-tuned relays

Definitions

  • rlhis invention relates to track relays of the seriestype.
  • v In railway signaling systems of the wayside type and in systems of automatic ⁇ train control it is often found ⁇ desirable to control av circuit When-a trainis near the exitend or some-other point of: a block.
  • a control of this kind is desirable in order to VveconomizeL in the consumption ot' ⁇ current used by suchlight. signals in that these signals neednot be' illuminated until there is a train in the block approaching the signal.
  • the present invention contemplates the provision of a relay for ther purpose mentioned which affordsthe various adjustments in a very simple manner, which is constructed to withstand an appreciable amount of jar and vibration te which relays of this kind are subjected, in which the Contact mechanism is readily accessible and is housed .in a transparent cover so that inspection is Fig. 2' shows a front elevation ofv Athe relay shown in Fig. l with a portion of the transparent cover broken away;
  • Fig. 3 shows a top view of the relay, illustrating particularly the graduated core adjustment indicator; and n Fig. 4 illustrates a chart whereby the pickup and drop-away characteristics of the rclay may be determined if the core setting islrnown or vice versa.
  • the particular embodiment of the relay illustrated comprises a panel l of suitable insulating material suchk asporeelain, which has been shown secured to a suitable wall or support 2 by bolts
  • a rectangular-ly shaped metal frame having a rectangularly shaped grove in the bottom face thereof containing a gael-Zet. 5.
  • the insulating. panel ⁇ l is Vprovided with a grove containing a gasket 6.
  • the frame i contains a large circular opening in which a cylinder 7 is secured by set screws 10.
  • a gasket 11 is laid between the frame 4 and cylinder 7, as shown, so as to avoid the ingress of dirt and moisture into the contact mechanism chamber.
  • This cylinder 7 has a cap 8 secured to its upper end by having the projecting flange 9 thereof rolled or spun over, so as to orm a cupsha ed shell of magnetic material.
  • a core 12 1s provided having a screw driver slot so that it ma be readily adjusted longitudinally within the shell 7 -8, and is adapted to be locked in position by a lock nut 13.
  • a washer, dial or indicator (see Figs. 1 and 3) having a lip 21 extendi ing into the keyway 22 cut in the reduced vthreaded part ofthe core 12, so that this indicator turns-as the core 12 is rotated for changing the adjustment of the core and in turn ther air gap of the relay as more clearly pointed-ont hereinafter.
  • This washer or indicator 20 ⁇ has raduations marked thereon wherebyfthe alr gap is directly indicated for each adjustmentthereof.
  • a coil or winding 14 ofthe required number of turns to function in the average track lcircuit.
  • This core is held in the extreme upper ⁇ position by a coil spring 25 resting on a Washer 26 held in place by a Cotter-pin 27, a suitable piece of insulating material or non-magnetic metal being' contained between this sprin andthe cnil.
  • a residual pin 30 of non-magnetic mate/rial Secured in an projecting from the lower end ofthe magnetic core 12 is a residual pin 30 of non-magnetic mate/rial. This residual pin is provided to limit the movement of a suitable armature 31 toward this core 12 when this core is adjusted to project beyond the lower edge of the shell 7-8, which should vhowever never occur in practice'.
  • this'armature, 31 is hi dly secured to a suitable support.
  • theA armature 31 has riveted thereto a rather stiff member532 which supports a contact linger 33'throngh.
  • the armature 31 is provided with a rivet 37 of non-magnetic material which is ada ted to function as a residual stop so that t armature 31 can not get into phgsical contact with the magnetic shell 7.
  • n opposite sides and above and below respectively of the contact linger 33 are station contact arms 40 and 41 respectively.
  • hese contact arms 40 and 41 have their ends bent toward-each other so as to be disposed above and below the multiple spring lin rs 42 and 43 projecting from the contact nger 3 3.
  • Divided or multi 'le spring lingers are used to lal'ord a p urality of Aseparate connections in multiple yfor each positionjof the relay.
  • the ends of these stationary contact arms 40 and 41 are cross drilled and threaded 'and have' m4 i tionary vcontacts 44fand 45' screw threaded thereinand locked in'l ition by suitable, lock nuts.
  • These adj ablestationary ,con-4 tacts -45 andg44-each includes a head of nellable metal such as brass which is hollowed ⁇ out and contains a contact block 46 of sun.4 able refractory material such as carbon or carbon impregnated with suitable metal.
  • a head of nellable metal such as brass which is hollowed ⁇ out and contains a contact block 46 of sun.4 able refractory material such as carbon or carbon impregnated with suitable metal.
  • This tin foil produces a cushioning effect and reduces the contact resistance 4betweenthe-.;;u;, metal andthe carbon.
  • a stud or bolt 47 projects through the panel ⁇ 1 which is connected to this contact arm 33 bya4 'flexible connection or pig-tail-48.
  • the stationary contact arms. nu 40 and 41 and the stud 47 are connected to binding posts 50, 5l and'52 respectively as shown.
  • a springV clip or-astener 53 is supported by the binding post 52 and is adapted to support a transparent cover 54 ⁇ which' en- 11.3 gagesth'e askets 5 and 6 respectively and l 1s held against the gasket 6 by a knurl head- ⁇ ed screw 55 engaging the frame, this 'screvlvl being .held against'removal by a seal 57 of 'they usual construction.
  • the relay In making tliese'Xedadjust-ments the relay is first energized after which contact 44 is adjusted to a position to give a predetermined contact pressure. This contact pressure is determined by the' Wipe the contact 4.2 makes over the surface of the carbon butlton 46 as the ⁇ relay is moved from its deenergized position Vto its energized position and vice versa. After?
  • the relay isV shipped to Ythe customer a calibration chart such as shownV in Fig. i is sent with each relay; Along thehorizontal axis of this lchart are plotted the number of; tur-ns- T, the graduations signified'. by the number" of threads projecting above the lock nut 13 and the graduation on the dial 2O adjacent the zeromark 23, and the air' gap in decimals of an inch; 'whereas amper-es of relayv current are plotted ig the vertical axis of*A the chart.
  • this relay has a more eicient magnetic circuit and less magnetic leakage than the types of tractive rela commonly used.
  • a relay particularly a aptable for use as a series relay in track circuits, for railway signaling urposesl has thus been provided in which t e armature is hin' dly or yieldab supported as distinguis d from piv,-
  • housing. is of a shape toengage both thel panel on which the relay is mounted and also the framesti'ucture for supporting the electro-magnet thereof.
  • An approach light signal relay for connection to the track in series with a track circuit battery bridged directly across the rails of a railway track comprising, a shell of magnetic material, a magnetizable core threaded into said shell so as to be vertically adjustable therein, a hinged armature adapted to move toward and away from said core and shell, a coil on said core which when energized causes said armature to be .5
  • An approach light signal relay forconnection 1n series to ,the track with a track circuit batter lbridged directly across the rails of a rai way track comprising, a su port, a cylindrical core carried by, andV justable vertically alon the axis of lsaid support, an armature i ed so as to be movable toward and away rom said core, ,a coil slidabl mounted on said core, a spring formaintaaning said coil against said support anda contact operated by movement of sald armature.
  • An approach signal relay for railway signaling purposed to be connected in series with the track battery to the track comprising, a shell of magnetic material of general inverted cup-shape havin a core arranged coaxially and adjustab e longitudinally therein, ⁇ an armature hingedly but non pivotally fastened to one side of said shell S0 as to provide a ilux path from said core to said shell, a coil surrounding said core within said shell and means to hold the coil fixed in relation to the shell.
  • a relay for use with approach signals Vfor railway signaling-purposes comprising,
  • An approach signal relay for railway signalling purposes comprising, a shell of magnetic material of general inverted cupshape having a core arranged coaxially and adjustable longitudinally therein, an armature hingedly but non-pivotally fastened to one side of said shell so as to provide a fiux path from said' core to said shell, non-inagnetic stop vmeans for limiting the movement of said armature toward said shell, a second non-magnetic stop means for limiting the movement of said armature toward said core, and a coil surrounding said core within said shell.
  • a relay for railway signaling purposes comprising, a shell of magnetic material of general inverted cup-shape having a ⁇ core v arranged coaXially therein which is adjustable longitudinally, an armature hingedly but non-pivotally fastened to one side ot said shell so as to provide a. flux path from said core to said shell, non-magnetic stop means for limiting the movement of said armature toward said shell, non-magnetic stop means for limiting the movement ot said. armature toward said core, a coil surrounding said core within said shell, and a spring supported by said core for holding said coil fixed relative to said shell regardless of the adjusted position of said core.
  • An approach signal relay for use in series with a track battery to the track, comprising a panel, a shell type electro-magnet including' a core and a shell supported on said panel, an armature hinged to said shell at a point adjacent said panel, a Contact finger supported :by said armature and proj ecting away from said panel, two stationary contact arms, iixed to and projecting outwardly from said panel above on one side and below on the other side of said contact Enger respectively, and stationary contacts adjustably secured to said contact arms adapted to be engaged by said contact finger when said armature is in its attracted and retracted position respectively.
  • a relay comprising a panel, a shell type electro-magnet including a core and a shell supported on said panel, an armature hinged to said magnet at a point adjacent said panel, a contact finger supported by said armature and projecting away from said panel, two
  • non-magnetic guide means secured to said magnet on opposite sides of said armature for limiting the lateral movement of said armature.
  • An approach signal relay lor use in series to the track with a track battery, comprising a panel, a shell type electro-magnet including a core and a support on said panel, an armature hinged to said magnet at a point adjacent said panel, a contact iinger supported by said armature and projecting away from said panel, two stationary contact arms projecting outwardly from said panel above on one side and below on the other side of said contact finger respectively, and stationary contacts adjustably secured to said contact arms and adapted tobe engaged by said contact finger when said armture is in its attracted and retracted position respectively, the core of said magnet being adjustable longitudinally, whereby the drop-away current of the relay may be adjusted by adjusting the core longitudinally and the pick-up current may be adjusted by adjusting the position oi the stationary contact below said Contact finger.
  • An approach signal relay of the type described comprising the combination of a shell, a core adjustably supported in said shell, a winding on said core, an armature adapted to bridge the ends of said core and shell, and micrometric indicating means ior indicating the air gap between said core and armature when said armature is in its attracted position against said shell.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
US16747A 1925-03-19 1925-03-19 Relay Expired - Lifetime US1766611A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
BE332737D BE332737A (enrdf_load_stackoverflow) 1925-03-19
NL19814D NL19814C (enrdf_load_stackoverflow) 1925-03-19
US16747A US1766611A (en) 1925-03-19 1925-03-19 Relay
GB7072/26A GB249511A (en) 1925-03-19 1926-03-13 Improvements in electric relays
FR612830D FR612830A (fr) 1925-03-19 1926-03-16 Perfectionnements aux relais

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US16747A US1766611A (en) 1925-03-19 1925-03-19 Relay

Publications (1)

Publication Number Publication Date
US1766611A true US1766611A (en) 1930-06-24

Family

ID=21778740

Family Applications (1)

Application Number Title Priority Date Filing Date
US16747A Expired - Lifetime US1766611A (en) 1925-03-19 1925-03-19 Relay

Country Status (5)

Country Link
US (1) US1766611A (enrdf_load_stackoverflow)
BE (1) BE332737A (enrdf_load_stackoverflow)
FR (1) FR612830A (enrdf_load_stackoverflow)
GB (1) GB249511A (enrdf_load_stackoverflow)
NL (1) NL19814C (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447890A (en) * 1942-12-03 1948-08-24 Bendix Aviat Corp Electromagnetic mechanism
US2833885A (en) * 1954-10-25 1958-05-06 Westinghouse Air Brake Co Electrical relays
US2916581A (en) * 1957-03-06 1959-12-08 Mallory & Co Inc P R Low loss vibrator
US3036176A (en) * 1959-08-11 1962-05-22 Connecticut Valley Entpr Inc Electrical relay

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2447890A (en) * 1942-12-03 1948-08-24 Bendix Aviat Corp Electromagnetic mechanism
US2833885A (en) * 1954-10-25 1958-05-06 Westinghouse Air Brake Co Electrical relays
US2916581A (en) * 1957-03-06 1959-12-08 Mallory & Co Inc P R Low loss vibrator
US3036176A (en) * 1959-08-11 1962-05-22 Connecticut Valley Entpr Inc Electrical relay

Also Published As

Publication number Publication date
GB249511A (en) 1926-08-26
NL19814C (enrdf_load_stackoverflow)
BE332737A (enrdf_load_stackoverflow)
FR612830A (fr) 1926-11-02

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