US1301206A

US1301206A - Electric-lighting system.

Info

Publication number: US1301206A
Authority: US
Inventors: Dana E Wescott
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-03-31
Filing date: 1916-03-31
Publication date: 1919-04-22
Anticipated expiration: 1936-04-22

Description

D. E. WESCOTT.

ELECTRIC LIGHTING SYSTEM.

APPLIcATwN FILED man. in. ma.

altar/wag 2 SHEETS-SHEET l- Patented Apr. 22, 1919.

O 0 vk s1 D. E. WESCOTT.

ELECTRIC LIGHIING SYSTEM.

APPLICATION FILED MAR. 3|. I9l6.

Patented Apr. 22, 1919.

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UNITED STATES PATENT OFFICE Specification of Letters Patent.

Patented Apr. 22, 1919.

Application filed March 81, 1916. Serial No. 88,125.

7?) all whom it may concern:

Be it known that I DANA E. Wnscorr, citizen of the United States of America, residing at #729 So. Michigan street, South Bend, in the county of St. oscph and State of Indiana, have invented certain new and useful Improvements in Electric-Lighting Systems, of which the. fOllOWlIlg is a specification.

This invention relates to electric 1i hting systems, and has for its particular oh ect, to provide means whereby a plurality of lamp circuits can be controlled from a central station to extinguish the lamps in all of said circuits simultaneously, or to extinguish the lamps in certain circuits at a different interval of time from the remaining circuits.

This invention is particularly adapted for use in connection with an arc-lamp or constant current circuit and which isconnected to control a plurality of auxiliary incandescent lamp circuits which are required to he extin ished separately and at predetermine] times.

These and other objects hereinafter described, are attained by the means illustrated in the accompan ing drawings, in which:

Figure 1 is a iagrammatic view showing two auxiliary lamp circuits connected to an arc-lam circuit. d

Fig. is a side elevation of a portion of a cut-out shown in Fig. 1.

F ig, 3 is a detail pers ective view of the lower end of the opera ing rod shown in F' s. 1. and 2.

i 4 is a view in elevation of'thetoothed meni er of the cut-out shown in flattened condption. g

Fig. 5 is. aperspective view of a modified form of solenoid mom" r; and

Fig. 6 is a diagrammatic view showing a three way circuit.

Similarreferenoe numerals in all of the figures of the drawings designatelilie parts.

Referring to the drawings fi designates an. arc-lamp. circuit haying-"a generator Got the. usual. type, and the arc-lamps 7, connectedin series and indicated diagrammatt cally, and aswitch 8. 1.

Connected .in series wins-the cirouit15,' are the solenoid magnets 9 which serve to control the movements of'thefd'ouhle core 10 and which carries the contact.- late 11. The ends ,ofthisplatell are adap d to engage with the stationarycontacts 12 to close a primary ortraiisformer circuit 13, to which power is supplied b a generator of an well known type and w ich is not shown in the drawings. From the above description, it will be seen, that the opening of the switch 8 will d'emagnetize the magnets 9, which will allow the core 10 and the plate 11 to fall and break the connections of the primary circuit.

As shown in the drawing, there is also connected in series with the circuit 5 another pair of solenoid magnets 14 which control a double core 15, and the same carries a contact plate 16, whose ends engage the stationary contacts 17 to close the auxiliary

incandescent lamp circuits

18 and 19 and which receive power through the transformers 20 and 21 from the primary circuit 13. The incandescent lamps 23 of these circuits are connected in multiple therewith.

It being desirous in this system to extinguish permanently one circuit of incandescent lamps before the other set, in this case the lamps 23, a cut-out is provided which is constructed as follows: Contact plate 16 is provided on its upper side with an insulating block 24 provided with a central aperture through which passes a rod 25 and which also passes through an aperture in said contact plate 16. Said rod is provided with. a head 26 which is larger than the aperture in block 24 and by which the rod is suspended. The lower end of the rod is provi ed with a cross-arm 27' which is adapted to engage the edges of the

teeth

28 and 29 in the cylindrical members' 30 and 31 to rotate said rod and arm. These cylindrical members are supported in a suitable frame 32 and said rod 25 passes freely through said

members

30 and 31, and which are spaced apart with their teeth disposed opposite each other. The cross-arm is positioned between said

members

30 and 31. from one member to the other The teeth of the member 30' are formed with notches of equal depthjhetwefen them, and those of the member 31; are formed with alternate d p and shallow notches; as clearly shown in ig. 4 of the drawings, and the teethof one memher are staggered relatively to the teeth of eother set.

Thus it will be seem that when the crossarm 27 drops downwardly from a deep notch in the member 31 as shown in Fig. 3, it angages an incl'me' edge of a tooth in the member 30, which forces it sidewisein its course t the bottom of'the notch and consequently rotates the rod 25 beyond the vertical alinement of the next tooth in the member 31, so that, in moving upwardl it will engage the inclined edge of said toot which will guide it into the next notch and in position to engage another tooth in the member 30 when it again descends.

The

contact plates

11 and 16 are resiliently supported from the cores 10 and 15 respectively, they being supported on springs 33 which are in turn sup-ported on nuts 34 adjustably secured on the lower ends of the suspension rods 35 and are secured in any desired manner to the cores 10 and 15. These suspension rods 35 of each core are preferably positioned one on each side of the rod 25 and pass freely through apertures in the blocks 24 and the contact plates, and it is understood, that when a double pole switch is used, none of the several parts of the cutout mechanism are ever in electric contact with the contact plates. By supporting the

plates

11 and 16 in the manner described, it is obvious that the cores can move a slight distance independently of the contact plates, so that any slight variation in the voltage of the are circuit, will not disturb the engagement between the plates 11 and 15 and their contacts, thereby furnishing to the

lamps

23 and 24 an even power which will give a steady light.

As shown in the drawings,

circuits

18 and 19 are formed with threewires, one wire 3-6 being" common to both circuits and to" gether with a wire 37 forms the circuit 19 and is connected to the terminals of one member 37' of the transformer 21, and h remaining wire 38 of the circuit 18 is conneeted to one of the fixed eontaets 17 which is engaged by one of the terminals of the plate 16. The opposite contact 17 is con,- nected to one terminal of another member 39 of the transformer 21, the other end of said member39 being: connected to the same terminal of the member 37 as is the wire 36. Thus the transformer member 39 is conne ted in circuit 18' and the member 37 is connected in the circuit 19. I

Assuming that the parts are positioned as shown in Fig. 1, the lamps in all of the circuits arelighted. It now, being desirous of extinguishing the lamps 2B in circuit 18 and keep them nnl ighted while the lamps inthe circuit 19 are lighted, the operator at thereontral station of the are circuit will momentarily open the-switch 3 which Will break the circuit 13 at the contacts 12 and shut 011' the current furnished to the

circuits

18 and 19 and consequently out out all of the 16mP$ in of the circuits. At the same time t is obvious that the arc-lamps will also be extinguished; simulten vusly the magnets 14 are deener "zed therehy allowing the core 1 p te 1 a d M12 to e e hich will cause the cross-arm to d scen firg one of the deep notches in member 31, as at 41 in Fig 2, t0 the inclined edge of the tooth 42 in the member 30, which will direct it downwardly on an incline to the bottom of the notch and consequently rotate the rod 25. In'lmediately the operator returns the switch to a closed position, which will'at once energize the

magnets

9 and 14, and their cores will be drawn upwardly. The upward movement of the core 10 will close the circuit 13 at the, contacts 12'. At the same time, the core 15 will ascend together with the plate 16, rod 25 and it; cross-arm 27, but said cross-arm in moving upward from the notch of the tooth 42 will engage the inclined edge of the tooth 4 in, the member 31 and be directed into the shallow notch of that tooth. This will limit the upward movement of the plate 16 and rod 25, and consequently prevent the ends of the plate 16 from engaging with the contacts 17 and thus keeping the circuit 18 open with its lamps 23 unlighted. The circuit 19 is not aliected by the open circuit 18 and will receive current through the transformer from the circuit 13, and its lamps will remain lightedas long as the circuit 13 is closed.

Should the member 31 be constructed with the deep andshallow' notches, as shown in the drawings, another opening and closing of the switch 8, will rotate the cross-arm in thenezrt deep notch and this will close the circuit 18 again and its lamps will be lighted.

It will be understood that the deep and shallow notches in the member 31 can be arranged in any suitable combination to control any number of auxiliary circuits as desired.

It will be observed, that in this system a constant current circuit is used as a control or master circuit for a plurality of auxiliary incandescllfi, circuits which can be extinguished separately and at different times of'th'e day or nig'ht, and all can be controlled by an operator located at the station. It is further evident, that various uses and combinations can be made with this system, audit will be seen, that whenjthe switch of the arc-circuit is thrown opemthe primary or tr'ansio 'fmer circuit will be cut out and remain so during the tiniethe arccircu i t is idle, thus saying "thelealr eilpss in the primary circuit duringthe inactive Pa Qflh y- I, a

,Thesele e memhe ho n i g-v 5 is provided'with a contact plate 42'. mounted in eachend of the supporting bar 48' and profgaeti'ng to both sides thereof, forming a don le P916 switch in contjradistinction to the type shown iii. Fig. 1, the contact pla e- ,1 i sen -l g tudin l of he 1. Pe aking a si p le u q ;.n Fig.- 15 itfn'r ill be observer 1, that when he u u p e ste i nect the r 38' and tth 'n nbcr t il ex in u h h lamps in both

circuits

44 and 45, which are duplicates of the circuit 18 in Fig. 1.

It is obvious that the master circuit may be varied at the station by either short circuiting the dynamo, lowering the quantity of current in the circuit, or opening the circuit momentarily through the switch.

Having thus fully described the invention, what is claimed is:

1. An electric lighting system, comprising a constant current circuit, a primary circuit, means responsive to the condition of the constant current circuit for controlling the primary circuit, a plurality of lamp circuits arranged to derive power from the primary circuit, and a circuiting means for certain of the lamp circuits responsive for circuiting purposes to alternate energizations only of the constant current circuit.

2. An electric lighting system, comprising a constant current circult, a primary circuit, means responsive to the energization and deenergization of the constant current circuit for controlling the primary circuit, a plurality of lamp circuits deriving power from the primary circuit, and means whereby certain of the lamp circuits may be deenergized through deenergization of the constant current circuit and maintained deenergized throughout a predetermined number of energizations and deenergizations of the constant current circuit.

3. An electric lighting system, comprising a constant current circuit, a plurality of lamp circuits, a means directly responsive to each energization and deenergization of the constant current circuit for making and breaking certain of the lamp circuits, and another means responsive to said conditions of the constant current circuit for making and breaking the remaining lamp circuits only through a predetermined number of energizations and denergizations of the constant circuit.

4. An electric lighting system, comprising a constant current circuit, a switch for controlling the energization of such circuit, a plurahty of lamp circuits, means directly responsive to each actuation of said switch for controlling certain of the lamp circuits, and another means for certain other of the lamp circuits for operatively controlling said lamp circuits only following a predetermined number of operations of said switch.

5. An electric lighting system, comprising a constant current circult, a switch for opening and closing said circuit, a'plurality of lamp circuits, means directly responsive to each operation of said switch for controlling certain of said lamp circuits, and a circuiting control means for the remaining lamp circuits responsive for circuiting urposes to alternate closing operations on y of said switch.

In testimony whereof I afiix my signature in presence of two witnesses.

DANA E. WESCOTT. Witnesses:

HARVEY KOONTZ, HELEN GRIFFIN.

Copies of this patent may be obtained tor five cents each, by addressing the Commissioner of Patents,

Washington, D. G.