US785446A - Electromagnetic block system. - Google Patents

Description

No. 785,446. PATENTED MAR. 2l, 1905. G. THOMPSON. ELECTROMAGNETIC BLOCK SYSTEM.

APPLIOATION FILED MAY 16, 1901.

Jnroni'ar $111M; Thompson Jfiarney WET? saws raieatea itrweh 21, m5.

PATENT Wicca GUION THOMPSON, OF DULUTH, EHNNESOTA, ASSIGNOR TO TllETllOUPSON SA lnE'lY APPLIANCE COMPANY, A CORPORATION OF NEW JERSEY.

SPECIFICATION formingpart of Letters Patent No. 785,446, dated. March 21, 1905.

Application filed May 16,1901. Serial No. 60,427.

To a whom it 'II'h/Lf/ nun/writ:

Be it known that l, (iUXON "lnonrsox, acitizen of the United States, residing at ll'uluth, in the county of St. Louis and State of Tilinnesota, have invented new and. useful improvements in Electromagnetic Block Systems, of' which the following is a full, clear, and exact description, such will enable others skilled in the art to make and use the same.

My invention relates to electromagnetic block systems, and has for its object the provision of means for progressively establishing and dissolving spheres of magnetic influence at intervals along a predetermined route.

It consists of a series normally open primary electric circuits, each including a source of electricity, the coil of an electromagnet, a normally open circuit-controlling contact adapted to be closed by the said magnet when ling contact adapted to he opened by the magnet when energized of another of said ci rcuits, and a series of normally open secondary electric circuits, each including a source of electricity, an electrornagnet, a normally open circuit-controlling contact governed therehy, the first said nm'mally open contact, and said normally closed contact.

it also consists of certain other confstructiOns, combinations, and arrangements of parts, as will he hereinafter more particularly described and claimed.

in the drawings, Figure 1 is a diagram of my said invention. Fig. 2 is a diagram of a convcyalme, showing for the purpose of illustrating the utility of said invention certain means adapted to initiate the operation ol' said invention and certain othcrmeanaadapted to be operated hy said invention.

in the drawings, A, ll, (l, l l), l, (l, and ii are electromagnets thecoils of which arrincluded in derived circuits each having two branches and shunted, respectively, onto the i coils of electromag'nets A", ll", and r). as

SllOW'fl, and corw-s)ondingelectroniag'ncts inrther along said route and not shown in any suitable manner or by any suitahhmeans adapted to eliminate each oi the lirst said magnets from any said circuit except the circuit energized, a normally closed circuit-controlincluding only the coil of said magnet and the 5 coil of the individual magnet upon which it is shunted. 'lhc coils ol' the electroniagnets f 1/, .2, A", il Y, i)", and E are also iri cluded in a. series of normally open primar and Secondary electric circuits each including a source of electricity, as a hattcry U, the electrical resistanceoi' each of which normally open circuits is relatively less than the resistance of the derived circuits. Each of said normally open circuits also includes, as rr-spectively at 38, 39, 4d), il, 42, 43, 4i, and 45, a normally open circuit-controlling contact adapted to he closed by the magnet when energized of its espective circuit by means of an armature and armature-lever, as respcc- 5 tivcly at SX, SY, S16, SA, SB, SC, SD, and SE, governed by said magnet and supporting an opposite contact adapted to estahlish when said armature is operated by said magnet :1 communication hetwecnsaid open con- 7 tact and a contiguous terminal contact of an intermediate conductor, as respectively A, 25, 2 27, 28, 29, and 30, shown, and a corresponding terminal contact farther along said i route, but not shown, and each oi said primary circuits further includes a normally closed circuit-cmitrolling contact between the opposite end oi said intmmmliate conductor and the free end of a conductor, as respectively ill. 35, ll}, and 37, shown, and corre- 50 spending mmductore farther along said route and not shown, which conductor is connected at its opposite cud to a mutual conductor ll,

, connected loono oi the poles l of said hat- I lcry, each of which normally closed contacts 5 is adapted to he opened I) the electroniaguct when energized oi another of said circuits,

:1 respectively A", ll", (l l), and l i ,sli \\'u, and cv'u'rcspondiug clcctroinagiu-ts farther along said route and not shown. liar-h ol' said secondary circuitsincludes, inaddilion to the intcrnualialecoznluctorol thecorrcs',louding priuniry circuits, as 27, a preceding int rlnwliahconductor, as .l-l, which preceding condmdor under other circumstances forms the intermediate conductor of another I primary circuit. Said preceding conductor i is provided at its opposite ends with normally open contacts, one ofwhich is adapted to be closed by the magnet, as A which establishes the primary circuit, and the other of which is adapted to be closed by the mag net, as X which establishes the secondary circuit. Said secondary circuit also includes the coil of the magnet, as X, which estabcoils of said electromagnets included in said normally open circuits and to a mutual conductor 4V, leading to the opposite pole N of said battery. 1 and 8, 2 and 10, 3 and i2, 4 and 14:, 5 and 1(3, 6 and 18, 7 and 20, 8 (not designated on the drawings) and-22 are pairs of conductors included, respectively, with the coils of said electromagnets A, B, C, l), E, F, (1 and H in said derived circuits shunted, as aforesaid, upon the coils of said respective electromagnets A, B, C D and it", as shown, and corresponding clectromagnets t'arther along said route and not shown.

For the purpose of illustrating the utility of my invention I have shown in Fig. 2 a conveyance-carryingmeans adapted to initiate the operation of my said invention and com- )rising an electromagnet A, de )endin fromldem electromagnets B and C the coils of along said route and not shown.

which are connected together by conductors j and Zr, which magnet C" is provided with an armature normally retracted from said magnet bya spring and adapted in retracted position to engage the free end of a lever electrically connected by a conductor g with one oi the polesot' a batter yl l the opposite pole of which battery is connected, through an electric-bell mechanism 1) and a normally open circuitcontrolling contact s, by conductors fand c, with the opposite end of said lever. A coiled spring is secured at one end to said lever and at its opposite end to a suitable anchorage and is adapted when said levcris released from engagement with said armature to cause said lever to close said normally open contact a whereby the circuit from said battery H is completed through said bell, causing it to sound. Said conveyanceis adapted to pass in the direction indicated by the arrow P along the route upon which my invention is laid and to. bring the elcctromagnets B" and A successively over said electromagnets A, X B, Y, (J, Z 1), A E, B, F, C, G, D, H, and E, as shown, and other similar magnets farther When the electromagnet A" passes over said magnet A, said magnet A is energized by induction from resets said magnet A, and a current of electricity is created in the derived circuit including the coil of said magnet A and'the coil of said magnet A, thereby energizingthe magnet A causing it to attract its armatu re SA and to close the normally open circuit-controlling contact 41, thereby establishing a closed primary circuit from battery O,through conductors 15, the coil of magnet A. the conductors-2T,

37, and 'R to said battery, thus maintaining the magnetic energy of said magnet A, the magnet A becoming again inert as soon as the magnet A has passed out of inductive distance from it. 'hen said magnet A passes over saidmagnet X said magnet X is energized by ind uctlon from said magnet A, and thereupon attracts its armature SK, causingit to close the normally open contact 38, thereby establishing a closed secondary circuit from battery 0, through conductors W, 9, the coil of said magnet X, the conductors 2 27. 37, R to said battery, thereby maintaining the magnetic energy of the magnet X In like manner the magnet A as the conveyance proceeds acts upon the other members o'l said series. It is obvious, however, that when said magnet A comes over the magnet l) and initiates an operation of the magnet i) in the manner described the primary circuit, including the magnet A", and the secondary circuit, including the magnet X will be broken by the opening of the contact between the conductors 27 and 37, whereupon the magnets A and X veyance reaches the magnet l) the tandem magnet B J" will be energized by induction from said magnet X and will thereupon attract its armature, thus releasing said lever, which will be drawn forward by said spring and close the normally open circuit-controlling contact- 8 thereby establishing the circuit from the battery Il through said bell mechanism D causing said bell to sound an alarm.

While 1 have described such means as are shown in Fig. 2 to illustrate the utility of my said invention, it is obvious that such means maybe radically altered or means of a totally dili'erent character may be employed both to initiate the operation of the magnets laid on said route and to be voperated by my said invention. 1 do not, therefore, desire to limit myself to any such particular means, but regard my invention, ex lusive of. the means shown on said conveyahce, as a complete mechanism or tool capable of performing "certain operations when properly governec as, byanalogy, a boiler is a comple'temechanism or tool, but capable of performing certain services only when filled with water and also obvious that the exact construction of said clectromagnets, armatures, contacts, conductors. or source of electricity may Within the scope of my invention be modified or al' tcrcd provided the circuits and operations claimed arc-preserved.

liar ing now described my invention, what 2. claim, and desire to secure by Letters Patent, 13"" I i, in means for-the purposes d escrihd,the combination of a series of normally open new trio circuits each including a sonrceof electricity the coil of an cleetromagnet, a normall y open circuitscontrolling contact adapted to be closed by said sleetromagnet when said electromagnet is energized, a normally closed circuit-controlling Contact adapted to be opened by the magnet; when energized, of another of said circuits, and a derived circuit including an electromagnct shunted onto the coil of the first said electromagnet, substantially as described. G

2. in means for the purposes described, th s combination of a series of normally open primary electric circuits each comprising a source of electricity, the coil of an electromagnet, a normally open circuit -'controllinn' contact adapted to be closed by said ele'ctrornagnet when energised, a normally closed circuitcontrolling contact adapted to be,opened by the electromagnet when energized of another of -said circuits; a series of normally open secondary electric circuits each including a source of electricity, the said coil of the electromagnct of a third and preceding one of said primary circuits, a normally open contact governed thereby, the first said normally open contactfi'antl said normally closed contact; and a derived circuit, including. an electromagnct and shunted onto the coil of the first said electromagnet, substantially as described.

3. in means for the purposes described, the combination f a normally open electric circuit, comprising asourcc of electricity the coil of anclectromagnet, a normally-open circuitcontrolling contact governed lly said electromagnet and a normally closed circuit-controlling contact; means embodying an armature adapted in operation toopen said normally closed contact; a derived circuit including" an electromagnet shunted onto the (301i of the first said electromagnet; a traveling magnen'or number of derived circuits, each including an energized clectroma 'net, adapted in passage 1 to energize said derived circuit and subsequently to operate said armature to open said normally closed contact, substantially as dv scribed.

4. in means for the purposes described the combination of a series of normally open primaryclcctric circuits each including a source of (lectricity, an electromagnet, a normally open circuit-controlling, contact governed by said electromagnct and a normally closed ciropen said normally closed contact; a second ary electric circuit comprising a source 0t cult-controlling contact governed by the elec tromagnet of a relative second one of said cir' cuits; a series of normally open secondary electric circuits, each comprising a source of electricity, the electromagnet of a relative 7 0 third one of said primary circuits, a normally open contact governed thereby, the respective first said normally open contact and the respective said normally closed contact; a plural electromagnet, respectively shunted onto the coils of corresponding, said clectromagnets of said primary circuits; a traveling magnet, or energized electromagnet, adapted in passage to first energize one of said derived circuits to close the normally open contact of the primary circuit, and subsequently to energize said relative third one of said electromagnets to close the normally open contact governed thereby to close the secondary circuit, and subsequently to cnergizc'the derived circuit shunted onto'the magnet of said relative second one of said primary circuits to open said normally closed contact, substantially as described. y

5. In means for the purposes described, the combination of a normally open electric cir cult comprising asonrce of electricity an electromagnet,a normally open circuit-controlling contact governed by said electromagnet and a normally closed circuihcontrolling contact; I

:shunted onto the coil of the first said electromagnet and subsequently to energize thcthird said elcctromagnet and subsequently to energize the derived circuit shuntcd onto the coil 0 t the second said electromagnet, substantially as described.

6. in means for the purposes described, the combination of a normally open electric circuitcomprising a source of electricity, an electromagnct, a normally open circuit-controlling 1 contact governed by said electromagnet and a normally closed circnit controlling contact; an electromagnct adapted when cncrglzcd to electricity, a third clcctromagnet a normally open circuit-controlling contact governed thereby, the first said normally open contact and said normally closed contact; and traveling means adapted during its progress to (211- 3 ergize the first third and second said electro magnets in the order named, substantially as described.

7.- In means for the purposes described, thecombination of a normally open primary electric circuit including a source of electricity, an electromagnet a normally open contact controlled by said electromagnet and a normally closed contact; a second electromagnet, adapted when energized to open said normally closed contact; a secondary electric circuit including a source of electricity a third elcctromagnet a normally open circuit-controlling contact governed thereby, the first said normally open contact and said normally closed contact; a

derived circuit of relatively high resistance and including an electromagnet shunted on the coil of the first said magnet; a second derived circuit of relative high resistance and including an clectromagnet shunted on the coil of the said-second electromagnet, substantially as described.

ln testimony whereofI have signed my name to this specification in the presence of two subscribing witnesses.

GUION THOMPSON;

WVitnesses:

JAMES T. WATSON, PHINEAS AYER.

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