US999534A - Multiple-unit coil. - Google Patents

Description

E. 0,. WILGOX. MULTIPLE'UNIT con..

APPLIOATIUI FILED JAI. 10. I1911].

9991534. Patented Aug. 1,1911,

1 3 EHBETB-BHBET l.

www t QAM A y n" E. C. WILCOX. MULTIPLE UNIT COIL.`

APPLIGATIUN FILED JAH. 1o, 1910.

Patented Aug. 1, 1911.

3 SHEETS-SHEET 2.

L?? C WCOX e @Hennessy E. C. WILCUX.

MULTIPLE UNIT COIL. APPMUATIUN FILED JAN 1o, 1910.

Patented Aug. 1, 1911.

3 SHEETS-SHEET 3,

M544. K14/.M

UNITED STATES PATENT OFFICE.

ERNEST C. WILCOX, OF MEBIDEN, CONNECTICUT, ASSIGNOB T0 THE CONNEC'JJICT TELEPHONE 8c ELECTRIC COMPANY, INCORPORATED, 0F MERIDEN, CONNECTICUT, A

CORPORATION OF CONNECTICUT.

MULTIPLE-UNIT COIL.

To all whom it may concern:

Be it known that I, ERNEST C. VILCOX, a citizen of the United States, residing at Meriden, county of New Haven, yState of Connecticut, have invented certain new and useful Improvements in Multiple-Unit Coils, of which the following is a full, clear V whereby it may be so arranged relatively to the coils as to bring one or another of its vibrator devices into operation therewith.

A furtherobject is to so construct said vibrator mechanism that it may be readily reversed or interchanged without disturbing the coils of the roup.

A further obJect is to proved casing or frame in which the coils and the vibrator may be removably mountv ed, said casing or frame having the connections so arranged that any coil may e removed therefrom independently of -the others and without disturbing theelectrical connections of the latter.

A further object is to so construct each of the coil units that it may be inserted withr in the casing in a lurality of positions and simultaneously an ,invariably make proper connection automatically with the electric circuitsin any of said positions and whereby the relative position of the contacts may be varied to vary the points of contact.

A further object is to provide *means whereby each coil,- while inthe casing orframe',l 4*maybe cut out' of circuit for the purpose of testing without'removal from the `casing and without disturbance of the conI lnections of other coils of the group, and

a further' object is to provide an improved means for preventing inductive action between the several coils of the oup.

With these and other objects 1n view, as will appear from the following detailed deprovide an im! Specication of Letters Patent.

Application llled January 10, 1910. Serial No. 537,185.

Patented Aug. 1, 1911.

scription, the invention consists in the constructlon and relative arrangement of parts,

a preferred embodiment of which is illustrated in the accompanying drawings, in which Figure 1 is a front elevation of'a casing or frame containing the coils and duplex v1-' brator, parts being broken away for a clear illustration; Fig. 2 is a vertical section on the line 2 2 Fig. 1 through the casing, showing the vibrator mounted therein and 1n circuit with the electric connections; Fig.

3 is a .view of the vibrator removed from 65 y the casing; Fig. 4 is a fragmentary view of the casing in vertical and longitudinal section, showing the arrangement of the partitions for holdin the several coils and vibrator therein; Pig. 5 is a plan view ofthe 70 bottom of the casing detached therefrom, illustrating the arrangement of the contact pieces for effecting the automatic connections with the coil units and vibrator; Fig. 6 is a front elevation `of the 75 parts shown in Fig. 5; Fig. 7 is an elevation of one of the coil units, including a view ot' the bottom of the casing in transverse section; Fig. 8 is an under side view of the cap or top of one of the coil units, showing the cut-out device of said coil. Fig. 9 is a sectional view on the line 9 9, Fi 8, looking in the rdirection of the arrow. ig. 10 is adiagrammatic" view showin the arrangement of the electric circuits or the coils and vibrator and the arran ement of the several contact members for e ecting the electrical connections of said parts and including diagrammatic arrangement of the several elements oli, the vibrator and of one of the coil units.

In the embodiment of the invention herein sel ed for illustration 1 indicates a casin or frame adapted to receive several coi units of a group and the vibrator mechanism operating-'in 4conjunction therewith. 'The casing may be provided with a suitable cover 2-wh1ch may be locked thereto by suitable latch members 3 3.

4 4 indicate brackets attached to the cas- 100 several compartments, 1 and 4, by partitiops l ment here shown, 'ti-h several coils of the group are s mmetfr'ically;

arranged at either side thereo relative arrangement of the coils andavibrator, however, may be effected as desired.

In order to prevent inductive action betweenA the several coil units, the partitions -5 of the casing between the units are con'- structed in the form of metal plates, whereby an inductive influence emanatin from the co1ls is intercepted. Asindicat in Fig. 1, these partition Walls are cut away as at 6, in order that they may not inter ere with the electrical contact pieces on the base of the casing and on the coils -as hereinafter referred to. c

Referring to Fig. 7, each of the coil units comprises preferably a cylindrical body portion if havina pair of contact members in theform of s 8 and 9 respectively, secured to the exterior surface thereof, which contact members are suitably connected Ato theseveral coil' elementslvvithin 'the unit, as will be hereinafter described, and are so located upon the coil body as to effect automatic: contact'with the-proper contact meme bers of the casing when the coil is inserted therein. These contact bands extend referably continuously entirely around t e coil body whereby such electric connection will be established irrespective of the particular position in which the. coil is inserted in the casing. Each of the coil units is provided with a cap or top 10, which is illustrated in Figs. 8 and 9', and is here shown as rectangu` lar in outline to tit within the rectangular compartments of the casing, but it is to be understood that the compartments of the casing may be'circular in form and that the cap or cover of each unit may be .correspondin ly circular to fit within the same. By ytilie latter construction, further-more, and by means of the circular contact bands 8 `and 9 described, the

gjrriembers 11 and 12 maybe broken at will.

v'unit maybe inserted .within the compartment in the'casing in any position and still make effective connection with the several electric circuits of the system, ,y

On the under side of the cap 10 is mounted a spring contact member 11, Fig. 8, which normally lies in contact with a second contact member 12, also secured to the cap. The contact member 11, as indicated diagrarmnatically in Fig. 10, is connected by a wire 13 in circuit withthe4 primary winding 14 of the unit and the contact member 12 is connected by wire 15-with the contact band 8 onthe exterior of the coil unit. The ca p also is provided with a push button 10', enaging. the end of the spring contact memf er11, whereby4 the connectionbetween the The secondary winding 16 of the unit is connected with the primary in the usual manner and 1s also connected by a wire 17 with 'a contact plate 18, Figs. 7 and-10 on the base of the unit. y The primary and secondary are also connected by wire 19 with the lower contact band 9 on the exterior of the unit. As indicated in Figs. 5 and 6 and diagrammatically` in Fig. 10, the base 20 of the coil casing or frame is provided with a series of spring contact arms 21, 21, 21b and 21 and with a second' series of sprin contactarms 22-22.-`22b 22; each arm o the series 21, &c., being aired with an arm of the series 22, &c., an the arms of each air being so arranged within the res ective compartments of the casing as to e ect contact automatically with the contact bands 9 and 8 respectively when the coil units are inserted within each compartment. Ea'ch of the arms 21, &c., is connected with a suitable binding post 23, 23, 23", 23, respectively, which in turn are connected bywircs 24, 24, 24", 24, Fig. 10, with the terminals 25, 25, 25", 25", respectively, of the commutator 26, said commutator having the usual rotatable cont-act arm 27 to effect connection with each of said terminals successively, said `arm being A,grounded at 28. Each'of the arms 2,2, 8vo., is connected with a common connecting member or bus bar 29, likewise mounted upon` the base of the casing, to whichfis also connected a split contact piece 30 for making contact with the vibrator element, as hereinafter described.

In order to effect electrical connection with the secondary terminal plate 18 of each of the coil units, the base 20 of the casing 1 is provided with a plurality of spring contact pins 31, 31a, 31", 31, one opposite each of the., coil compartments of `said casing. Each of said pins 31, &c., is mounted in a socket 32, F ig. 7, of a contact stud 33 which in turn is carried within an insulating sleeve 34 having a screw threaded head 35 adapted Vto receive the screw-threaded cap 36 by which the contact stud 33 and the connections moisture. Each of the 4contact studs 33 is connected by a Wire 37 with the spark plugs 38 of, for example, an linternal combustion engine one side of said spark plugs 'being grounded in the usual manner as `at 39.

The vibrator, which may be termed for convenience a duplicate vibrator, as yshown in Fig. 3, consists of a casing 40, having separate and independently operable vibrator elements-mounted upon and within' each end thereof. As these vibrator elements are duplicates, a description of one will sutice for both.

Referring to Figs. 3 and 10, the vibrator element at each end of the duplicate vibrator cfirnp'rises a bridge L1 secured to a cap 40 of the casing 40 carrying a contact screw 'therewith may be protected from dirt and 42,l with which the spring armature 43 coop crates in the usual manner. One end of t le vibrator coil 44 .is connected at 45 with the armature 43 and the opposite end of the coil leads by wire 46 to a contact screw' 47 extending to the exterior ot the casing 40, as indicated in Fig. 3, and located midway thereof. The contact screw 42 is connected throl'lgh the bridge 41 by incansof a wire 48 to a contact screw 49 located at the corresponding end of the casing. The common contact 47 and the separate contacts 49 for each of the oppositely arrangedI vibrators, each consist of a pair ot screws for better engagement with the cooperating contact strips respectively'. The contacts 49 at each end of the vibrator casing are each con necterl only with the bridge Il adjacent the same end. The usual condenser 50 is connected across the terminals of the vibrator.

The Contact strip 30, Figs. 6 and l0, connected with the bus bar 29 is arranged to project within the compartment of the caslng provided for the duplicate vibrator and to connect. with the contact screws 47 midway of said duplicate vibrator when the same is in operative position. Mounted upon the wall of the vibrator compartment is a second contact member 51 arranged to engage the contact screw 49 at one end ofthe vibrator element when properly positioned in said compartment. From the contact 5l a wire 52 leads to a terminal 53 of a switch 54 preferably mounted upon the outside oi' the casing and provided with a switch arm 5.5

arranged to make contact with battery ierminals 56 or 57, as desired. Preferably two batteries 58 and 59 are provided, either one of which may be brought into operation by the switch, as desired.

Froniithe above descri tion it will be seen that .the coil units may 'e readily mounted Vwithin the casing by simply slipping the same into itheir respective compartments, which action at the saine time effects automatic connection through the contact meinbers fixed to the bottom of the casing 20 and the contactsI on the coil casing with the vibrator member, battery and spark plugs respectively, and by reason of the presence.

of the common connection 29 for the coils with the vibrator and battery any one. of the coils may be removed without disturbing the electrical connections of the others. Furthermore, the vibrator element may be likewise mounted in the casing and at the same time 'automatically makje electrical connection with the switch contact 5.1 and the common coil contact 30. By reason of the duplicate form of the vibratormember, the same maybe reversed at will, bringing` either ot `the vibrator elements into operation, in case the other becomes ineffective forany reason. Itvwill'- be seen fl'urthcrmore that all ot the contactfmembers for the coil units and the vibrator are mounted upon the base of the casing, whereby these parts may be readily assembledl thereon beforethe base is attached to the casing;` thus greatly facilitating man" vide the manually operable cut-out comprising the spring contact member l1 and vpush button 10 upon each coil. By sim ly pressing' upon the button 10 the circuit 'will be broken between the contact members 11 and 1'2 without disturbing the connection of the other units, whereby a defective part of the system may be readily detected in a. manner well known to thc-se skilled in this art.'

The operation of the apparatus is clearly apparent from the above description.

While I have herein shown a particular embfnliment ot' my invention, itl is to be understood the same may be varied in detail and arrangement of parts within the scope ct'the appended claims.

"hat I claim is:

1. In electric apparatus, a source of current,`a duplicate vibrator comprising independent Vibrator elements, an. induction coil, a casing for said vibrator and coil, contact u'iembers'on said casing adapted to effeet electrical connection automatically with one of said vibrator elements upon the insertion of said duplicate vibrator in said casing, and contacts on said casing arranged to effect electrical connection automatically with the primary and secondary windings on said coil upon insertion of the same within the casing to conncctsaid coil and vibrator in series with saidy source of current.

In electric aliparatus, a source of current, a duplicate frilirator con'ip'rising indc pendent vibrator elements-and having contact members connected therewith. au induetion coil, contactmembcrs on the exterior oi" said coil connected with the primaryand secondary windings thereof respective-ly, a casing forsaid vibrator and coil, contactmembers on said cin-ling adapted to ctlcct electrical connection automatically with the contact members of one of said vibrator elements upon the insertion ot' said duplicate vibrator in said casing in one position, and with the contact members of tht` other vibratorelement on said `duplicate 'vibrator when ythe latter is inserted in said casing in reverse posit-ion, and contact members on said casing adapted to Veli'ect electrical connection automatically with the contact mem- `bers of said coil'when the latter is in the casing to connect the coil and vibrator in series with said source of current.

3. In electric apparatus, the combination,

source of current, acircuit breaker, a sparking device, a duplicate vibrator, comprisinga casing having vibrator elements mounted upon either end thereof, a casing, electrical connect-ions established by the insertion of said `'duplicate vibrator in said casing in one positlon to connect one of its vibrator elements automatically with said source of current, and similarly to connect the other vibrator elementof said duplicateA tion; coil` a casing, electrical connections established by the insert-ion of said duplicate vibrator in said casing in one posit-ion to connect one of its vibrator elements with said source of current, and to connect the other of said vibrator elements with said source when said duplicate vibrator is insertedin said casing in aV reverse position, electrical connections established by the insertion of the coil within said casing to connect'its primary automatically with that element of the duplicate vibrator connected with the source of current.

5. In electric ap iaratus, a source of current, a duplicate vibrator comprisin a casing having independent vibrator e ements mounted upon either end thereof, a plural ity of induction coils, a casing, a common connection on said casing for the primary windings on said coils, electrical connections established by the insertion of said duplicate vibrator in saidcasing in one position to connect one of its Vibrator elements automatically with said source of current and withsaid common connection respectively, and to similarly connect the other of the vibrator elements of said duplicate vibrator when 'the-latteris insertedin said casing' in the reverse position, and electrical connections4 established by thc insertion of said coils in said casing? to automatically con ncct the primaries thereof respectively with said common connection.

(l, Inelectric apparatus, a source of cur-l rent, a duplicate vibrator comprising a casing having independent vibrator elements mounted upon elther end thereof, a plui thereof, a pluralit faceta rality of induction coils, a sparkin device anda circuit breaker'for each coi respectively,- aV casing for said: du licatevibrator and coils, by the insertion of said duplicate vibrator electrical connections established in one position in said casing to connect one of the vibrator elements thereof, with the said source and the primaries of said coils and to similarly connect the other vibrator element of said duplicate vibrator when Ainserted in said casingin a'reverse position, electrical connections established by the insertion of said coils in said casin to automaticall connect the 'primaries t ereof respective y with said vibrator element oon- 4nected to said spurce, and also to connect the primary of each coil automatically with said circuit breaker, and to connect the secondary of each coil with its s arking device.

7. In electric apparatus, t e combination of a source of current, a duplicate vibrator comprisin a casing having inde end-ent vibrator e ements mountedupon eitlher end of Ainduction coils, a circuit breaker an a sparking device or each of said coils respectively, a casing for said duplicate vibrator and coils having a common connection for the rimaries of said coils and said du licate vibrator, electrical connections 'esta lished by the insertion of said duplicate vibrator in said casing in one position to connect one of its vibrator elements Vautornatically'With said source and said common connection, and to similarly connect the other of its vibrator elements automatically when inserted in said casing in reverse position, electrical connections established by the insertion of said coils in said'casinar to connect the rimary of each coil respectively automatically with the common connection and with its circuit breaker, and to connect the secondary of each coil with its sparking device.

8.v In electric apparatus, the combination of a source of current, a duplicate vibrator comprising a casing havingr independent vibrator elements mounted upon either end thereof, a plurality of induction coils, a circuit breaker and asparking device for each coil, a casingr havin a common connec` tion for the primaries o each coil and said duplicate vibrator, and having separate connections for`thc primaries of each coil t0 connectthe same with said circuit breakers respectively,v and having separate connec- 1 tions to connect the secondary of each coil with its sparking device, sai duplicate vibrator having contact* members, adapted when said vibrator is inserted in one position in said casing to automatically connect one of its vibrator elements with said source and said common connection respectively, and to similarly connectthe other vibrator clement when said duplicate vibrator is inserted in reverse position, each of said coils sesam havlng contact members to automatically connect its primary with said common connection and with, its circuitl breaker, and to connect the secondary automatically with 4the sparking device upon insertion of the coils 1n said casing.

9. In electric apparatusaa duplicate vibrator comprising a casing having independent Vvibrator elements mounted upon either end thereof, a plurality of induction coils, a casing for said duplicate vibrator and coils and means to connect one of the vibrator elements automatically with the Aprimaries of said coils upon insertion of said vibratorin said casingr in one position, and to similarly connect the other vibrator element when said duplicate vibrator is inserted in reverse position.

10. In electric apparatus, a source of current, a duplicate vibrator comprising a casing having independent vibrator elements mounted upon either end thereof, a plurality of induction coils. a casing, a common connection on said casing for the pri maries of each coil, contact members ou said duplicate vibrator and said casing to connect one of the vibrator elements automatically with said common connection upon insel-tion of said duplicate vibrator in said casing in one position and to similarly connect the other of said vibrator elements upon insertion of said duplicate vibrator in reverse position.

11. A duplicate vibrator for ignition apparatus, comprising a casing having independent vibrator elements mounted upon either end thereof. contact members on the exterior ot' said casing connected with the coperating parts of each vibrator element.

12. A duplicate vibrator for ignition ap,- paratus, comprising a casing;r havin independent vibrator elements mountec` upon either end thereof, separate Contact members on the exterior of said casing connccted with similar members of'each vibrator element respectively, and a common contact on said casing connected with the col'responding members of said vibrator elements.

13. A duplicate vibrator for ignition systems, comprising a casing having independent vibrator elements mounted upon either end thereof, separate contact members on the exterior of said casing connected respectively With the lixed contact member of each of said vibrator elements, and a common contact on the exterior of said casing connected with the coils of 'each of said vibrator elements.

14. In electric apparatus, an induction ooil comprising a casing` containing'the primary and secondary winding of said coil respectively. contact bandsextending around the exterior of said coil casing, one of said bands being connected with the primary and the other connected to the primary and secondary of said coil, a holder for sald coil` contact members `on said holder to effect connections automatically with said contact bands u on insertion of the coil in any ot a plurality of.positions in said casing.

15. In electric apparatus, an induction coil, a casing therefor, contact members extending around the exterior of said casing,

one of said members being connected to one terminal of the coil primary, the other ot said stripsbeing connected to the opposite terminal of thc coil primary, and one terminal of the secondary, a third contact member on the exterior of the casing of the coil connected with the opposite terminal oi the secondary, a coil holder having contact members adapted to eltect connections automatically with saidcoil contacts upon in sertion of the coil in any of a plurality ot positions 1n said easing.

16. In electric' apparatus, an induction coil, a cylindrical" casing therefor. contact members extending around the circulatorence of said. casing. one of said members hcingr` connected with one terminal of the primary and the second ot said members being connected with the opposite terminal ot the primary and with one terminal ot the secondary, a third contact member on the exterior of said casing connected with the opposite terminal of the secondary, a coil holderhaving a compartment adapted to re ceive said coilsaid holder carrying contact. members adapted to effect connections autr matically with said contact inmnbers on said coil upon insertion of the latter within said holder.

1 7. In electric apparatus, a plurality of induction coils, each coil comprising a casing' having,r contact members extending around the exteriorthereot', one of said members beingr connected with one terminal of the primary and the other member being connected' With the opposite terminal olf' the primary and with one terminal of the secondary, a third contact member on said casing connected with the opposite terminal of the secondary. u holder for said. coils having a plurality of separate compartments therefor, contact members onlsaid holder extending into each compartment and adapted to eifect connections automati^ cally with the contact members on each coil casing when said coils are inserted in said holder irrespective of the position ot said coil in said holder.

18. In eletric apparatus. a plurality of induction coils, a common vibrator for said coils, a casing having a plurality of com partments toreccive said coils and vibrator respectively, contact members mounted in each compartiment, the partition of said compartments. bet-Ween said coils being constructed of material to prevent inductive action bet-Ween adjacent coils, and being cut away adjacent said contact members to prevent contact therewith. 4

19. In electric apparatus, a vibrator comprising a single mounting, two independent vibrator elements in common thereto, each vibrator element having at least one independent circuit terminal in combination with an induction coil, a holder in common to said induction coil and vibrator, a circuit, and contact means for automatically electrically connecting either of said vibrator elements in said circuit depending upon the position of said vibrator 1n said holder.

20. lln electric a nparatus, a frame, an induction coil carrie thereby, a vibrator also carried thereby, said vibrator including a mounting and a plurality of separately operable vibrator elements carried thereby, a circuit for said coil and vibrator, with means for automatically electrically connecting any including one of said vibrator elements dependent on the position of its mounting relative to said frame, in said circuit when said coil and mounting are laced in said frame.

21. In electric apparatus, a frame, a plurality of induction coils carried thereby, a vibrator also carried thereby, said vibrator a. mounting and a lurality of separate operable vibrator e ements carried thereby, a circuit for each coil with means for automatically electrically connecting any one of said vibrator elements in circuit with all of Said coils when said coils and mounting are placed in said frame dependent upon t e positionof said mounting in said Trame.

- ERNEST C. WILCOX. Witnesses;

CHAS. A.. PEARDY, M. E. GARRETT.

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