US1312282A - Planograph c - Google Patents

Description

1. R. sPURRlER'.

cmcun BREAKER. APPLICATION FILED SEPT; II, 1916.

l ,3 l 2,282 Patented Aug. 5, 1919.

4 SHEETS-SHEET 1.

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ZK/wrQ/WVENTOR J. H. SPURRIER.

CIRCUIT BREAKER.

APPLlcAloN FILED SEPT. 11. 1916.

1 ,3 1 2,282 Patent-ed Aug. 5, 1919.*

4 SHEETS-SHEET 2.

J. H. SPURRIER.

CIRCUIT BREAKER.

APPLICATION FILED SEPT. II, 191e..

1,312,282. Patented Aug. 5,1919.

4 SHEETS-SHEET 3.

/g MTU/mers TME COLUMBIA PLANOGRAPH C0.,.WASHINC;TON.'X1. C.

J. R. SPURRIER.

CIRCUIT BREAKER.

APPLICATION FILED SEPT. 1|. 191e.

Patented Aug. 5, 1919.

4 SHEETS-SHEET 4.

UNITED sTATEs PATENT OFFICE.

JOHN n. SPURRIER, or BETHLEHEM, PENNSYLVANIA, AssIGNoR To RoLLEEfsMITH COMPANY, A CORPORATION or NEW YORK.

CIRCUIT-BREAKER.

Specification of Letters Patent.

Patented Aug. 5, 1919.

To all 'whom it may concern:

Be it known that I, JOHN R. SPURRIER, a citizen of the United States, residing at Bethlehem, in the county of Lehigh and State of Pennsylvania, have invented certain new and useful Improvements in Circuit-Breakers, of which the following is a full, clear, and exact specification.

The principal object of my invention is to provide a new and improved device for opening all of a plurality of circuit breakers whenever the current conditions are such as to cause the opening of any one of them. Another object of my invention is to provide a plurality of circuit breakers with auxiliary means for opening all of them whenever one of them opens. Another 0bject of my invention is to provide an auxiliary switch to be actuated by a circuit breaker when it opens, with means to keep the switch closed for only a short time but long enough to be effective. These objects and others will be readily appreciated on consideration of the following specification and the accompanying drawings, in which I have described one specific embodiment of my invention. It will be understood that the invention is defined in the appended claims.

Referring to the drawings, Figure 1 is a side elevation of one of the circuit breakers.

Fig. 2 is a vertical section viewed in the same direction as for Fig. 1.

Fig. 3 is a front elevation of the circuit breaker.

Fig. 4 isa side elevation of the auxiliary switch.

Fig. 5 is an electrical diagram of the set of circuit breakers and associated elements.

The circuit breakers are mounted on vthe base 11 of insulating material and the main circuit conductors leading to one breaker are indicated as 12 and 13. Attached to theV conductor 12 is the main contact 14 and the shunt conductor 15 with its carbon block 16. The mechanism of the circuit breaker is supported on a pair of side frames 17 between which is the iron core 18 rotatably mounted on a shaft 19 which has its ends fixed in these side frames 17. The main circuit breaker arm comprises a piece 2() bent to form three sides of a rectangle with the intermediate art 21 fastened by a screw 22 to the core 18). This screw 22 also enbagages one end of a spirally wound copper f strike one side frame 17 and act as a stop tape 23, the other end 24 being secured to one of the main circuit conductors 13. A strip of insulating material 23 separates adjacent turns of the coppertape23. At each end of the core 18 there is secured a hooked clip 25 by means of a screw 26 and these clips 25 are engaged by the springs 27 fastened bythe screws 28 to the bases of the side frames 17.

The main arm of the circuit breaker comprises the part 20 heretofore mentioned, between the ends of which is riveted the channel extension 29. At its end this arm 20-29 carries a carbon contact block 30 adapted to engage the block 16, and the intermediate portion of the channel 29 engages the contact leaf springs 14. The arm 20-29 carries a roller 31 mounted on the pin 32. A pair of disks 33 of insulating material are mounted on the sides of the copper tape coil 23.

A lever 34 is mounted on a shaft 36 carried by the ends of the side frames 17 This lever 34 consists of a plate of metal bent to have its extremities parallel and adapted to have a handle 35 connected t0 its intermediate part. At the end opposite the handle 35 the lever 34 carries a roller 37 adapted to engage the roller 31 on the breaker arm 20-29. A shaft 59 having one end in the form of an eccentric stud 38 is mounted in the lever 35 and it may be fixed at any desired angular adjustment by the set screw 39. A lug 59 on lever 34 is adapted to for lever 34. The stud38 acts similarly as a stop to limit movement of lever 34 in the opposite direction.

An armature 41 is pivotally mounted between the side frames 17 on the shaft 40. 95

This armature 41 consists of a plate of metal bent approximately to form three sides of a rectangle with the extending parts hanging on the two sides of the coil 23. As

the armature 41 is attracted by the ends 0f 100 the core 18 a lug 42 carried by this armature is adapted to engage an opposing lug 43 on the lever 34. A set screw 44 limits the movement of the armature 41 away from the core 18, and this limiting position 105 Each side frame 17 carries a downwardly projecting extension plate 47. Secured by screws 49-to the lower end of each such extension plate 47 on its inner face is an iron ,oted at 56 hangs in front of the polepieces 48 and carries a tongue 58 that projects up behind the shaft 59 in the lever 34. The

vspring 9 0 normally holds the armature 57 in lthe position shown in the drawings.

Attached vto the base 11 beside each circuit 'breaker is a bracket 60 shown in Fig. 4. The

upper end lof the bracket 60 has ears 61 bent down and carrying a pivot pin 63 from which hangs a pendulum rod 62 with its lower end forked at 64 and engaging the roller 65 that acts as a pendulum bob. Projecting laterally from the rod 62 is a stud 66, which lies in the path of the circuit breaker arm 20. The lower endv of the bracket 60 carries a piece of insulating Ymaterial 67 with a hole 68 that acts as a guide for the end of a leaf spring 69. This leaf spring 69 is insulated from the bracket 60, but conductively connected to the conductor 70. Another conductor 71 is convductively connected to the bracket 60. Vhen, the circuit breaker is closed, the roller-bob 65 takes the position 72 and in Figs. 4 and 5 when the circuit breaker opens the roller-bob 65 may swing. on the other side to the position 73 in Figs. 4 and 5.

Referring to Fig. 5, a plurality of supply conductors are indicated at V74, and to these the vrespective branches 12 are connected. An vauxiliarylocal source of current is provided in the form of a battery 75. From one side a conductor 76 leads by branches 77 to the conductors 71 that connect with the respective brackets 60. On the other side of the source 75 a Conductor 78 goes to the respectivecoils 52 in multiple.. The remaining' terminals of the coils 52 are connected toa conductor 79 from which branches 8O go to the respective conductors that connect with the leaf spring contact members 69. Instead of taking current from the auxiliary battery 75, it could be taken from the main conductors 74 or from any other suitable source.

A single circuit breaker is shown in closed position in Fig. 1 and in open position in Fig. 2. Closure may be efected lby means of the handle 35 and the coactin ` rollers 37 and 31. The circuit controlled y the circuit breaker includes the spiral coil 23 which energizes the core 18. An excessive current accordingly attracts the armature 41 and through the engagement of the lugs 42 and 43 starts the lever 34 so that the springs ,27

throw the breaker open. Necessary adjustments may be made by turning the shaft 59, and adjusting the set screw 44.

When the circuit breaker is closed, the pendulum 62--65 is swung over to the position designated 72, but whether the bob 65 hangs down straight or is swung over to 72 as just stated, there is no closure of the circuit of the battery 75. When the circuit breaker trips, the armh20 jumps away very suddenly from the stud 66 and thereafter the pendulum 62 swings freely to the position indicated by the numeral 73, whereupon the roller 65 contacts with the leaf spring 69 vclosing the circuit of the battery for a considerable fraction of a second.

Accordingly current ows from the battery 75 through the coils 52 in multiple, thus ener- -gizing all the cores 51 and attracting all the the same time, each circuit breaker can be closed independently of the others. In Fig. 5, I have shown the three breakers open, but for the breakerat the right the closed position is indicated in dotted lines and the corresponding position for the roller 65 is indicated vin dotted lines at 72. At 73, inl Fig. 5, in connection with the middle circuit breaker, the position of the roller 65 is shown when the breaker has just opened, and the circuit of the battery 75 is accordingly momentarily closed.

Although the movement of the circuit breaker arm 20 is of exceedingly brief duration, it will be seen that nevertheless, I effect a transient closure of the circuit of battery 75 of long enough duration effectively to energize said circuit. Moreover, by my arrangement, this auxiliary circuit remains normally open, whether the main circuit breakers be open or closed.

Having thus described my invention, what I declare is new and desire to secure by Letters Patent ofthe United States is z- 1. A plurality of main conductors, respective circuit breakers therefor, coils comprised in said conductors for actuating said breakers respectively, additional electromagnetic means also adapted to actuate said breakers, a circuit adapted t0 energize said additional electromagnetic means, means to effect a transient closure of said circuit by the actuation of any one of the breakers and to'prolong the effect of such closure for a limited duration of time. A

2. A circuit breaker comprising a breaker arm, a spring vtending to throw it open,

latching mechanism to hold it closed, two coils, separatecores therefor, respective armatures therefor,` and means carried by said armaturesadapted to engage Said mechanism to trip it and release the breaker arm.

3. A circuit breaker comprising a breaker arm, means to throw it open very rapidly, a pendulum adapted to be displaced-on one side by said arm when the breaker is'closed, a contact adapted to be Vengaged by thependulum on the opposite side, and an auxiliary circuit adapted to be closed when said pendulum touches said contact.

4. A plurality of circuit breakers each controlling a respective circuit and each comprising an actuating coil in its circuit in combination with an auxiliary circuit and respective circuit closers adapted to be closed transiently by the opening of anyone of said circuit breakers, and means energized by said auxiliary circuit to open all the circuit breakers.

5. A plurality of main conductors, respective circuit breakers therefor, coils comprised in said conductors for actuating said breakers respectively, additional coils also adapted to actuate said breakers respectively, a circuit comprising the windings of said additional coils, circuit closers for said circuit associated with the respective circuit breakers and means to close any such circuit closer by the opening of any one of said breakers and to prolong the action of such circuit closer for a limited duration of time.

6. A plurality of main conductors, respective circuit breakers therefor, two actuating coils for each such breaker, one such coil comprised in the circuit of the respective main conductor, the other such coil comprised in an auxiliary circuit, means actuated by either coil to trip the associa-ted circuit breaker, means actuated by any circuit breaker to close the auxiliary circuit temporarily and to prolong the effec-t of such closure for a limited duration of time.

7 A circuit breaker comprising a breaker arm, a spring tending to throw itopen, mechanism to hold it closed, two coils associated with said breaker, one such coil in series in the circuit controlled by the circuit breaker, the other such coil in an auxiliary circuit, respective armatures for said coils, members carried by said armatures adapted to engage said mechanism to trip it and release the breaker arm, and means associated with said breaker arm to close said auxiliary circuit transiently when the breaker arm is released and the spring throws it open.

8. A circuit breaker comprising a breaker arm, a spring tending to throw it open', a lever to close it a ainst said s ring, said lever being adapte to pass a ead center in effecting the closure of the arm, two coils,

respective armatures therefor, members carried by said armatures adapted toengage said lever to trip it and release the breaker arm, and means associated with said breaker arm to 'close said auxiliary circuit transiently when the breaker arm is released and vthe spring throws it open.

10. A circuit breaker comprising a breaker arm, means to throw it open very rapidly, a pendulum adapted t0 be displaced on one side by said arm when the breaker is closed, a yielding contact strip adapted to be engaged by the pendulum on the opposite side and an auxiliary circuit adapted to be closed when said pendulum touches said contact.

11. A circuit breaker comprising a breaker arm, a spring adapted to throw it open very rapidly, a pendulum hung beside the breaker arm, a stud on the pendulum projecting in the path of the breaker arm and adapted to be engaged thereby when the breaker arm is closed, a yielding leaf spring contact adapted to be engaged by said pendulum and an auxiliary circuit comprising the pendulum and the said leaf spring as contact terminals.

1Q. In combination, a base, a circuit breaker mounted thereon, a bracket mounted on the base beside Said circuit breaker, a pendulum supported by said bracket, a stud on said pendulum projecting in the path of the breaker arm and adapted to be engaged when the breaker arm is closed, a leaf spring contact member supported by ,said bracket, but insulated therefrom and adapted to be engaged by said pendulum, and an auxiliary circuit comprising said bracket and pendulum on the one side and said leaf spring on the other side as coacting terminals.

13. In combination, a base with a vertical face, a circuit breaker mounted thereon, a bracket mounted on the base beside said circuit breaker, said bracket having an upper projecting part and a lower projecting part, a pendulum pivoted tothe upper projecting part and hanging therefrom, a stud on said pendulum projecting in the path of the arm of the circuit breaker whereby the pendulum will be swung toward the base when the circuit breaker is closed, a leaf spring contact member supported by the lower projecting part of the bracket but insulated therefrom and an auxiliary circuit having the said pendulum and leaf spring as coactng contact terminals.

14. A circuit breaker comprising a breaker arm, means to throw it open very rapidly, a member mounted beside said arm and adapted to be displaced thereby, means tending to move said member comparatively slowly in opposition to said displacement, a contact adapted to be engaged transiently by such member in such movement, and an auxiliary circuit adapted to be close thereby. f

15. A plurality of main conductors, respective circuit breakers therefor, coils cornprised in said conductors for actuating said breakers respectively, additional coils also adapted to ac-tuate said breakers, an auxiliary circuit comprising said additional coils, pendulums hung respectively beside the arms of the said circuit breakers and adapted to be displaced thereby when the breakers are closed and yielding Vcontact terminals adapted to be engaged by the swing of said pendulums when the breakers open and thereby close the said auxiliary circuit... Y

In testimony whereof I a'lix my signature, in presence of two witnesses.

JOHN R. SPURRIER. Witnesses:

IRVING E. HALL, HAROLD G. RUETER.

copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, VD. G,

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