US877576A - Series-parallel polarity-changing switch. - Google Patents

Description

Y PATENTED- JAN. 28, 1908 E.- s. LINCOLN.

SERIES PARALLEL POLARITY CHANGING SWITCH.

APPLICATION FILED FEB. 11 1907.

ll/vzes ses.

3772161107": {y v/mmae Jaw rney.

s'sHEBTs-sHEnT 1.

Hoar/ ,576. Y Y PATENTED JAN. 2a, 1908.

E. s, LINCOLN.

SERIES PABALLE L POLARITY CHANGING SWITCH.

APPLICATION FILED FEB. 11, 1907.

s SHEETS-SHEET 2.

(Eda/71w A124; M4;

Witnesses No. 877,576. PATENTED JAN. 28,1908.

E. s. LINCOLN.

SERIES PARALLEL POLARITY CHANGING SWITGH.

APPLICATION FILED FEB. 11 1907.

s SHEETS-SHEET a.

attorney,

sewn: s. LINCOLN, o'i s oomms, MASSACHUSETTS.

i no. svvsve.

Specification of Letters Pete-en LES-PEltLLLL PQLARITY-GEAHG-ING SVHTGH.

Fatented (ion. 28, 1998.

Apjllioeticn filed February llrlQO'Z. Serial ll'o. 356853.

To all wiz-o m it may concern:

Be it known that I, EDWIN citizen of the United Ststes, residing at Brookline, in the county of Norfolk and State of Massachusetts, have invented certein' new and useful imyrovements in Series- Pereliel Folerity-Chcngmg Switches, of which the following is c specification.

My invention relates to double throw "2c which is embodied my invention in its preri form F 2 is a diagrammatic figure I end wiring hf. the

'llnstrs ng the operaswitch when switch bis-dos ere t, in the direction of arrow. Fig. srly a diagram illustrating operation when switch olsdes are thrown to .hown by snow. Figs. 4 and 5 showing the wiring and illusersticn oi sswitch varying roin that shown i, 2, and 3. end 7 show construction end arrange s switch embodying my invention in l the iiioveble conductors swing instead of verticell es in the foregoing 8 are dis "ns illusthe "g operetion 03. i. switch eiements,

don i ore-sic type, einhcdyingniy invention. Fig. 19 is a side elevation th som showing one switch blade in one of its operative positions.

Fig. 1 my invention is shown as emhocied in s switch similar in general features with the usual triple pole, double throw single break switch, having the case 1, the handle 2, preferably adopted to operate simultaneously the three switch blades 3, 4, and 5, which are pivoted ct hinge posts 6, *7, and 8, or otherwise restrained at one end, end engage in one position of the switch the outer contact blocks 9, 10, and 11, end in the other osition with outer contact blocks 12, 13, one 14. A supplementary contact block is provided at 15, with which switch blade 4 also en egcs simultaneously with outer con- S. Lmconn,

' cctive of e switch of the gle break type toot block 10, when in the position shown in Figs. land 2. i 1 16,17 and i8, 19 are two pairs of binding posts for connecting in the poles of twdbattones, or other source of electric energy,

which may consist of single cells, as in Fig. 2,

are binding osts to which may be connected the terminas of the circuit wln'ch switch con trols.

The connections between switch outer con tact blocks, hinge posts, bettery and circuit binding :posts, as well as the mode cicperw tion of the switch, are shown in ii s2 and 3. In Fig. 2, the switch'is shown in t-.e position in which batteries 22 end 213 are connected in parallel. In this Fig. 2 switch handle 2 is supoosed thrown to the left in the directionof tne arrow, the switch blades 8, i, and 5, shown as heavy lines in such position, lfilt ting in electrical connection respectively 6 and 9; 7,15,-and 10; end 8 and 11. A bettery 22 is connected in at binding posts 16 and 17, so that, for example, 16 is negative and 17 is positive. Similarly, a. second hette'ry 23 is connected in at 182ml 19, so that these binding posts are respectively negative and positive.

From 15 a wire extends to 15 and thence a. wire 24; leads to 12. wired to 8. and 11 are joined wire both being in communication with 13 by means o ire 26.. Bindhzg post 18 is wired both to 10 and to 14.

. Binding post 19 is ccimectezl by wire 27 to wire end thereby i s connection with 13 as well as with. 9 and ii, or if desired said binding gcst is may he wired direct to 13. 6 leads to 21, end 7 to 20.

The c eras. of s perellelingbetteries 22 and. is follows. Frorn positive binding "post 1? on goes to 8- on to 11. through switch blade 5, and into wire 25, w zero it is joined by current from positive or ofcellsin series es in Fig. 3. At 20 and. 21

pole of battery 23, which passing through the,

binding post 19, he's 27 and 26 is'conducted to wire Y25, and both currents there unit ing, pass through-switch blade 3 from 9 to 6 and thence to positive circuit binding post 21; Returning the current passes through ncgc tive binding post 20 to 'Z and enters switch blade s, where it divides, 2. part returning via. 15 to negative binding post 16, and the balcnce returning to negative binding .post 18 via 10; From the above it will be seen that batteries 22 and 23 ere thus connected in i and 3, it will be noted Y contact block 25 parallel, 21 being rendered the positive, and 20 the negative terminal for the circuit.

In Fig. 3 the switch is in its alternate posi tion, handle 2 now being towards the-right so that 6 and 12 are connected by switch blade 3, 7 and 13 by switch blade 4, and 8 and 14 by switch blade 5. connected with negativepole of battery 28, which is here shown as composed of three cells in series, 17 beingponne'cted with the positive pole of the same. Similarly negative-pole of battery29 leads to 18 and posi tive pole of the same to 19. Starting at 16', (which is seen to be in communication with circuit binding post 21 through supplementary contact block 15, wire 24, outer contact block 12, and through switch blade 3 to hinge post 6, which is wired'to 21), current passes through battery 28 to pole 17." Thenceit passes to 8, traverses switch blade 5 to 14, and comes back through wire 30 to 18. Passing through battery 29 to pole 19, current continues through 2'7 and 2'5 to. outer 13 and on through switch blade 4 to hinge post '7 and thence to circuit binding post 20. From the above it will be noticed that batteries 28 and 29 are, in this position of the switch blades, connected in series, and that 21 is in this case the negative,

and 20 the-positive terminal for the circuit,-

thus reversing the polarity of the said terminals as compared with that resulting from the alternate position or" the switch blades shown in Fig. 2.

Should it be desired to place the separate sources of energy either series or in parallel, in the alternate positions of the switch without chan ing the polarity at the line terminals, a si ht change in the wiring is necessary. Comparing Figs. 4 and 5, which show the wiring of such a switch, with 2 that in the formersv wire 32, electrically connecting 12 with wire 25, and also connected to 19 by wire 27, replaces wire 26 of Figs. 2 and 3; which, the said figures, connects 13 with wire 25, the said wire 26 also having a branch wire 27 leading to 19. Furthermore, 15 is, in Figs. 4 and 5, in connection with 13 by wire 31, instead of being joined to 12 by wire 24, as in Figs. 2 and 3. With these changes the wiring is the same in Figs. 4 and 5 as it is descr1pin Figs. 2 and3, and the foregoing tion of the operation of the switch in paralleling the sources of energy when the condoctors are in the position shown in Fig. 2 is equally applicable to'Fig. 4, the reference numerals being the same in both cases. in Fig. 5, however the operation of switch differs from that of the switch shown by Fig. 3 in that binding post 21 is in the former in electrical connection with positive pole 19 of battery23, through 5, 3, 12, and wires 32 and 27. Hence 21 is in this case positive, whereas in Fig. 3 it was negative. Also 20 is now As before 16 ispendent of the electrically connected with negative pole 16 of battery 22 through 7, e, 13, wire 31, and

y 15-, and hence said binding post 20 is in Fig. 5

said sources of energy i series without chang- 1 ing the polarity of the binding posts and 21, with relation to the polarity of the same when the sources of ener y were connected in oarallel as in Fig. 4.

ill the type of switch shown in 1 it may be seen that the hinge posts not only act as pivots about which the switch blades swing, but also serve ascontact bloclrs'with which the pivoted ends said switch blades are in continual engagement. one position of the switch. the movable conductors, as tii'e switch blades ma be broadly termed, put the outer contact blocks of one selective set into electrical connection with the hinge posts, or inner contact blocks",

as they may be more broadly termed. In the other position of the switch the said movable conductors also put the outer contact blocks of the as the supplementary contact block, into connection with the same set of inner contact blocks; the sets of inner contact blocks bein this case both mechanically and electricaly identical.

it is apparent that my invention may be embodied in a switch in which the sets of inner contact blocks engaged by the movable conductor in the selectivb positions of the switch are not necessarily both mechanically and electrically identical as well as in one in which the said inner contact blocks are indeswitch elements at which the movable conductors are pivoted. Figs. 6 and 7 show a switch of the latter type. in said figures, 4, 3 and 5 are the movable conductors pivoted at 7, 6 8, and preferably simul' taneously operable by the connecting yoke 30, provided r ith handle 31. When the switch handle is towards the right, as in Fig. 6, the movableconductors contact with one set of outer contact blocks, 10, 9, and T1 conductor 4 also being in contact at its other end, whichis extended beyond pivot 7, with supplementary contact block 15. When the handle 31 is toward the left, as in Fig. 7 the said conductors contact with the alternativ selective set of and 14. At 7 5 and 8 is a set of inner contact blocks which slidingly engage respectively the conductors 4, 3, and 5, being in electricah tact therewith in either position of one switch.

other selective set, as wellouter contact blocks, '13, 12,

Zihand 21 are binding,

That is, in

posts for connecting iii the circuit controlled by the switch, while 22 and 23 are two independent sources of energy respectively connected in at binding posts 16 and 17, and 19.

and 18 In the position of switch shown Lu i-Lao I We Fig. B-the sources of'enei gy are connected parallel, current from negative pole 16 going I to and thence into-conductor 4L, where-it is conductor 4 both currents joined by current from negative pole 18 the latter being connected by wire with 10, "with which sa'idconductor 4 is in contact; From I pass into 71, and thence to negative binding post 20." Positive pole 17 is in connection, throughiinner' contact. 8 and-conductor 5, with outerjcon ,tact 11, from which a wire extends toouter negative pole 18 of source of energy 23,"

thus be seen that in this position of'the" contact 9, said wire being also connected to positive pole 19.

seen t at negative pole 16 is connected to positive binding post 20 by way of supplementary contact 15, outer contact 12, conductor 3, and inner contact 6 Positive pole 17 of source of energy 22 is connected with throu h 8, conductor 5, and outer contact 14. ositive pole 19 of 23 is electrically con nected to 20, through 13, 4, arid 1 It will switch the sources of energy 22 and 23 are connected in series, and the polarity of the' binding posts 20 and 21 is'reversed as compared with ,that resultingv from the switch position shown in Fig. 6.

Still another ty e of. switch is represented in Figs. 10, 8, an

electrically dead, and have the movableconductors 3, 4, and 5. pivoted thereat. The outer contacts 9, 10; 11, 12, 13, and 14, as well as su plementary contact 15 correspond to similarly numbered elements in the switch shown in Figs. 1, 2, and 3; the movable conductors 3, 4, and 5 respectively engagin 12, 13 and 14, in one osition, and 9, 10 an 15, and 11 in'the ot er position.

ously with outer contacts '12, 13, and 14, the

' Fig. 8,

' and circuit binding posts, and the wires6, 7

and 8, are identical with those shown in Figs.

' 2 and 3, and'described in the specification above with reference'thereto, noting however that the wires 6 7, and'8, inner contacts 6 and 6 ,7? and 7 ,and 8. and 8 and pivot posts 6, 7 and 8, with their re- Thus currents-from posi. tivepoles 17 and 19 unite'a-nd pass-through outer contact, 9, conductor 3, and inner con tact 6 topositive binding post 21. In Fi 7 said conductors are. swung into their le hand osition, In this position it will be,

gaged b 9 which show aswitch ofv the well known double break ty e. In

this switch the pivot'posts 6, 7? an 8 are sources inner contact bloc Siinultanecircuit in series, an

the said sources of spective -functions, are; in-the switch shown- "in 2 and 3, respectively combined mevcl ani'cally and" electrically in thehin'g'e; posts 6,' 7, and 8. With the" modification 'ust noted that portion of the above spec cainode of operation-of the switc 170 tion descnibing mode of operation of switch shown in'said Figs. 2 and 3 willbe foundtobeequally applicable as a descri tion of the shown; in. F' s. 8, 9, and 10.' %Vhile I have hereinbefore used the term;

inneras applying to certain of the'conta'ct 'blo'cks,.the term is chosenbecause as shown' in'the ures said contact blocks .areilocated inside 0 or'between, the 'outercontact-{ blocks, and it is adoptedsolely for the pur-.' pose of distin uishingothe same fromxthe outer and sup lementary contact blocks. It

,is clear that-t e relative position of the sets of inner and outercontact blocks with-refer.-

ence to the pivotedends of the conductors may be'l'eversed, so that the -contact blocks 'hereinbefore termed ,outer engage the conductors nearer the pivoted ends of the same,

without inyolving'any departure from my invention, so long as the inner contacts enany one'conductor in either posiion of t e switch were electrically identical,

and provided that the inner, outer, and sup- Y plementary contact blocks, and the circuit terminals weredelectrically connected: bubstantially as' described. 7

Having described: my invention, what I claim and desire to secure by Letters Pat: ent is:,'.

ada ted to electricallyconnect said sources m a 5m 1.:In combination with a plurality of of electric energy, an electric. switch ofi e ectric energy to an electric circuit, said switch having triple conductors adapted to occupy select ve o erative'positions a setof is at which said conduc tors are' hinged, a set of outer contact blocks with which said conductors} electrically en-- 1 gage in one operative positio'n of the switch,

a second set of outer contact blocks with which saidconductors electrically enga in 'thesecond operative position-0f the switch,

a supplementarycontact block withwhich one o saidconductors also engages in said second connections between said sources of ener inner contact blocks, outer contact blocfi position: of the switch, and electric su plernentarycontact block, and the cir-.

cult terminals, substantially as described, whereby in one. position of the switchthe "said sources of energy are connected to said energy are connected thereto in parallel. I

2. Incombination with a plurality of sources offelectric energy, an electric switch ad a' ted-to electrically. connect said sources of e ectric energy to an electric circuit, said switchhaving-movable conductors adapted in the second position to occupy selective ogerativ e positions, of innercontact bloc s with which 881910011- ductcrs electrically engage in either operaa tive position of said conductors, a set of outer contact blocks with which said c0n.

doctors electrically engage in one position of the second position of the sWitch,, a supplementary contact block with which one of said conductors engages in the second position of, and electric connections between said switch.

said sources of energy, inner, outer, and supplementary contact blocks, and the circuitterininals, substantially as described, hereby in one position of the switch the said switch, a second set of outer contacts with which said conductors engage in the and in the second position of aset' 'cupy" selective operative positions, each of said conductors engaging in either position of the switch with an innerand an outer contacthlock, the inner contact blocks engaged by any conductor in one position of the switch being electrically identical with the inner contact engaged by said conductor in the other position of the switch, one of said conductors furthermore engaging in one position of the switch with a supplementary contectblock, and electric connections between said sources of energy, inner, outer, and supplementary contact blocks, whereby in one position of the switch the said sources of energy are connected to seid circuit in series, and in the second position of the switch-theseid sources of energy are connected thereto in parallel.

in testimony whereof I aifix my signature in presence of two witnesses.

-EDWIN S. LINCOLN. Witnesses:

NATHAN" 3. DAY, WILLrAM A. COPE-LAND.

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