US2098631A - Electric lighting fixture - Google Patents

Description

NOV. 9, 1937. J PARISS] 2,098,631

ELECTRIC LIGHTING FIXTURE Filed May 12, 1953 F/GJ /NV'N 7'02 ANTHzm/Y JFARLEZSZ Arron/vars Patented Nov. 9, 1937 2,098,631 I UNITED STATES PATENT OFFICE ELECTRIC LIGHTING FIXTURE Anthony J. Parissi, Cohoes. N. Y.

Application May 12, 1933, Serial No. 670,715

3 Claims. (Cl. 173-4346) My invention particularly relates to an electric interposed in the circuit with a second switch 4. lighting fixture designed for use in signaling The switch 4 is wired to control two legs 5 and systems such, for example, as disclosed in my co 6 of the circuit leading to the switch 3, the leg pending applications Serial Nos. 701,747 and 5 connecting the pole element or" switch 3, to one 51,733 wherein an incandescent lamp is connected terminal of switch 4 and the leg 5, having in- 5 through the medium of a three wire circuit for eluded therein an electrically controlled thermooperation, for example, in response to either oistatic switch i such, for example, as the well two controls. known, so-called flasher button, connecting the My invention is primarily designed for simple other terminal of switch- 4 to the terminal of m and efiicient incorporation in circuits of the charswitch 3 which is connected to one side of the 19 acter above referred to, examples of which are lamp l. The operation of this circuit is as folherein disclosed merely for purposes of illustralcws:switch 4, which is adapted to be used tion, and has for an object the provision of a by a signaler, is normally in the position indicombined lamp socket and switch to which may cated in the drawing. The switch 3, used by the be connected a plurality of wires of an electric p rat f th p W nefiessalily. either 15 circuit. More specifically, a further object of my in he po n r n the closed p n, in invention resides in the provision of a fixture the latte Case, O co e a p i wi b comprising a lamp socket and switch which are luminated. Ffhen it is desired to cause the lamp so electrically connected together and with three i to emit an intermittent li ht in order to at- Zll terminals for connection to wires of an. external tract the attention of some person, the igm 2c circuit that a lamp, which is received in the throws switch 3 so that the leg 6 is energized socket, may be controlled by said switch or by h h he p f h switch 4 a ng the means of any other suitable control which may terminal 441 thereof. In the event switch 3 is in be connected to the third terminal of the fixture. the s d POSibiOH and the Switch 4 is Operated,

With these and other objects in view, my iny the sienaler, t e leg 5 of the circuit will he 25 vention includes the novel elements and the com p e y Sw 4 a normal pp y loinations and arrangements thereof described rent to t p i Will be Changed 5mm its p below and illustrated in the accompanying drawthrough the leg leg It therefore,

ing in which-- dent that the signaler may cause the lamp I to Fig. l is a simplified form of signal circuit flash or flicker independently of the position of 30 with which my fixture is adapted for us the switch? and, hence, the switch 3 may be used Fig, 2 is a simple form of circuit similar to Fig, to light and extinguish the lamp i, and, inde- 1 and including a plurality of incandescent lamps; pendently o the position of said wi h p Fig. 3 illustrates a particular form of signaling y be caused to flicker by the signa er t fl circuit; a the medium of switch 4. 35

Fig. 4 is an elevation view, partly in section, 2 illustrates a Circuit Similar to 1 of a section of a ombined lamp k t and Switch wherein a plurality of incandescent lamps I, la embodying terminals adapting t Same for use and lb are included in the circuit with a lighting in my signaling circuit; service line 2a which may be energized from any Fig 5 is an elevation View of the rear f the suitable source of power, in most cases, 110 volts d ice illu t t d i Fig 4; being the proper potential imposed thereon. One Fig. 6 is an elevation view of a flasher button of the lamps for lamp lb may be with the casing removed; lected as the signalinglamp and in that event it is included in circuit with legs 5aand 6a, the wiring diagram therefor being similar to that of the single lamp illustrated in Fig. Leg 6a has included therein a flasher button and connects one terminal of switch to directly to one a side of the lamp to, whereas leg tic forms an 59 throughout i f element or the normal lighting circuit to lamp lb An exajmpie clrcmt wlth my fixture is from the other terminal. of switch :lb and inadapted use is Illustrated in 1 wherein cludes the usual lamp switch 3c. The operation 9 indicates an incandescent lamp included in a of t i normal lighting circuit and signaling Su tab e lighting Circuit A Switch normally cuit associated therewith is substantially the same adapted to extinguish and light the lamp 5, as the circuit described above and hence needs no Fig. 7 is a side elevation view of Fig. 6; and

Fig. 8 is an elevation view, partially broken away, illustrating a lamp socket and a switch assembly.

Like reference characters indicate like parts further description nor explanation of the operation thereof.

In Fig. 3, I have illustrated a wiring diagram embodying a particular form of signaling circuit wherein a normal lighting circuit is associated with a telephone circuit. In this case, I have provided means whereby the ringing of the telephone bell may be eliminated and a flashing lamp signal substituted therefor. A three pole socket and plug, indicated generally at 8, is illustrated as a flexible means for connecting any lamp or group of lamps with my signaling device. Obviously the plug and socket is not a necessary part of this circuit for the conductors 9, ill and M leading therefrom to the lamp [I may be connected directly to the conductors 911, Mid. and Ma respectively in which case the signaling lamp and automatic means for operating the same could be arranged in a single unit. We will assume for the purpose of description that conductors 9, l2 and Ill are connected to the conductors 9a, Mia andl la respectively and designate them generally as conductors 9, if] and M. The normal lighting service lines are indicated at l2, to one of which is connected the common line 9 from one side of the lamp. To the other side of the lamp are connected the two lines l0 and. M, the line it forming the other leg of the normal lighting circuit from the lamp through the relay it to a conductor M and thence to the opposite leg of the service lines E2. The third leg ll of the lighting circuit is connected to the lamp side of the lamp switch it and to one terminal it of the relay it, this leg including a flasher button la.

The terminal ll of the relay it is connected to the conductor M by means of a conductor it having imposed therein an automatic switch element l9 and a manually operable switch 22. The conductor l!) is connected to a terminal 25 of the relay l3 and the terminal 22 thereof is connected to the conductor M by the conductor 23. The coil of the relay H3 is connected in series with the two terminals 2&1 and 25 of a second relay 2%, associated with a telephone subscribers circuit. The two terminals 2 5 and 25 of the relay 26 are connected to opposite sides of the lighting service lines l2, respectively, through the conductor 28 to the coil of the relay [3, the other end of the coil being connected to one leg of the lighting service lines l2 through the conductors 2i and 9a, whereas conductors l8 and M connect terminal 25 to the other leg thereof. The incoming lines of the subscribers telephone circuit, indicated generally at 29, are connected to a telephone subscribers set 30 and alarm bell M. For convenience, I have provided a switch 32 whereby a subscriber may use the bell as an alarm signal or else may substitute therefor a flashing, visual signal. The relay 26 is connected by means of the conductors 33-, 32 and the switch 32 in multiple with the subscribers telephone jlines 29.

The operation of the above described circuit is as follows.

Assuming that the switch 32 has been turned to connect the relay 26 in multiple with the subscribers telephone lines 29, a flow of current in the telephone circuit energizes relay 26, causing the armature 26a thereof to engage the two terminals 241 and 25, therebyclosing a circuit therebetween. Normally the-armature l3a of the relay i3 is in the position illustrated in Fig. 3, the coil thereof being unenergizedand the normal lighting circuit to the incandescent lamp i being established thereby. The conductors 9 and 912 form one leg of the normal lighting circuit to said lamp, the other leg comprising the conductor ill and switch l5 included therein, the conductor lfla, terminals 2i and 22, electrically connected together by means of the armature l3a, conduc-. tors 23 and M to the other side of the service lines l2. An energization of relay 26 effects an energization of relay l3 causing the circuit otherwise established thereby to be opened between the terminals 2i and 22 thereof and closing a circuit between terminals l6 and ill. Therefore, the normal lighting circuit to the incandescent lamp l is opened and a new circuit is made which functions as a substitute for the normal one, the leg of the normal circuit including the switch l5 being rendered inoperative. Relay i3 is preferably of the locking type to maintain the substitute circuit irrespective of further operation of the telephone system. Furthermore, a flasher button may be incorporated in the substitute circuit to provide intermittent illumination of the lamp and thereby provide a visual signal. From an inspection of the foregoing circuit, it is evident that intermittent illumination or flashing of the lamp will take place irrespective of whether the lamp was lighted or extinguished at the time of operation of the signal circuit.

The manually operable switch 20 is provided to permit a person responding to the signal to open the substitute circuit and restore the normal lighting circuit and the automatic switch iii, a timing switch of any desired type, effects the same result when the signal is unanswered.

In Figs. 4 and 5, I have illustrated a portion of a lighting fixture embodying my invention which is particularly adapted for use with signaling circuits of the foregoing character. The switch casing 3" is of the usual type incorporated in an electric lighting fixture (see Fig. 8) and comprises the usual terminal 37 to which one side of the lighting circuit is connected. A second terminal 38 is provided having the usual spring contact 39 adapted to bear against the base of an incandescent bulb when the same is screwed within the lamp socket. The terminal 37 is electrically connected to the terminal 38 at the will of an operator by means of a segmental, metallic wheel, not illustrated but of well known to bear against the plate 31a of the terminal 31 and plate 38a of the terminal 38 when the switch is in the closed position. When the switch is again operated these segments will pass beyond and away from engagement with the plates 37a and 38a and lie in the recesses 40 and M cast in the shell 36 of the switch element. The design of this type of switch is well understood in the art and needs no further description thereof in order to explain the function of the added terminal 42 which adapts my fixture for use with, for example, three wire circuits. The terminal 42 is located at any convenient position on the outer portion of the switch casing and extends therethrough to the interior thereof and is electrically connected to'the portion 38b of the terminal 38. The terminal 42 is adapted to form a means for connecting the socket and lamp associated therewith directlyacross two wires of a circuit and at the same time permit a third wire to be connected to the terminal 31 whereby the switch element may be used to regulate the operation of the lamp when the circuit is completed through the conductor attached to the terminal 31 To the switch casing 36 is secured a lampsocket 48 of the usual type within which an incandescent lamp is receivable. The socket is proacce ses vided with dia one of embrace coco;v he openings extending asing, A h in ti e owhich one terminal of my fixture and conductors d and 53 are connected respectively to the terini and 3'? thereof.

Obviously, te nnals and 5t! serve connect the lamp socket directly across the two con ductors 5i and of a three wire circuit and ter= minals 3i and serve to connect the socket and switch in series across the conductors 52 and 53 of the circuit.

In Figs. 6 and 7 I have illustrated a type of flasher button in order to aid in an explanation of the operation thereof. The flasher butcn i dicated generally at 43 comprises an armature having a coil @5 wound thereon and a contact but ton c63 adapted to engage a contact wh the armature 5 bends toward the right as viewed in Fig. 7 as a result of the energization of coil. The coil is adapted. for connection in series in an electric ci cult and intern ttent shunting thereof is effected by engage ients of contacts 5.6 and ll whereby an in ernn'ttont flaw of current is effected through the circuit.

While in the foregoing 1' have described my invention in connection with exemplary uses there of, it is to be understood that my fixture may be employed with any type of circuit and is not limited to those of the character, termed signaling circuits, herein disclosed. Hence, while I have described my invention in its preferred embodiments, it is to be understood that the words which I have used are words or description rather and of limitation, and that cnanges view of the appended jlalljis he having two contacts of an i, ng circuit, and the third minal being electrically connectihle throu switch to one so :et contacts; se i;

as being arranged to permit the connect 0;? said fixture in an external electric circuit? an electric lighting fixture compi .ng incandescent lamp socket having two contacts adapted to engage the contacts of an incandescent lamp, a switch, and three separatelyinsulated terminals disposed exteriorly of said switch and socket for connection to external electrical conductors, two of said terminals being connected to form a circuit including said socket switch in series therebetween and the third al being electrically connected to said circult at a point intermediate said switch and lamp soclret.

3, A combined switch and socket for an incandescent lamp, said socket having two contacts adapted to engage the contacts of an incandescent lamp received therein and said. switch having a casing provided with three separately insulated terminals disposed exteriorly thereof, two of said terminals being directly connected respectively to the two socket contacts and the third terminal being electrically connectible through said switch to one of said socket contacts; said terminals being adapted to permit the connection to said switch and socket of three wires of an electric circuit.

ANTHONY J. PARISSI.

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