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Патент USA US2121570

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Jùne 21, 1938.
I
J. G. PETERSON
`
ELECTRIC
2,121,570
SWITCH
Filed Nov. a, 1954
M32.
2 sheets-sheet 1 -
.June 2l,
~_]_ (_.~,_> PETERSON
2,321,570
ELECTRIC SWITCH
Filed Nov. 8, 19M>
n F2322. ‘
27
.26' 3533 26 27 ‘
34
2 Sheets-Sheet 2
2,121,575@
Patented June 21, 1938
'y »
îo-I-‘Ficla
s rrArE-s
251213570
.ELECTRIO ySWITCH
v
Johann G. Peterson, West Hartford, Conn.
-ApplicationNovember 8, '1934, VSerial No. `’751,995 »
v25 Claims.
".l'My àinvention `relates ‘to electric. switches.
4ëItëhas.-amorigcits objectstoprovide an improved
`@switchespecially:adaptedlto use in portable elec
tric hot plates, or ranges, wallxswitches,-or the
.5 like, eanda/more particularly, an improved switch
„off-this itype'fhavingspaced “on” 'positions and a
ucentral “.foff” position. lA further object of my
:invention -is `to provide an improved switch Aof
l.this »type which, vas compared with previous
flosswitches of -this îtype, is >of an improved and
:markedly more compact construction, while of
«increased capacity, aseompared with `previous
.fswitchesof @this size. 'Other objects -of my inven
‘tîon are to-.provide such an fimproved yswitch re~
.1.5 fquiring lonlyfa single springand` having improved
-cam mechanism :andiimproved automatic means
fior-.insuring :the throwing of the switch, as well
:as an improved structure and arrangement of
the :commutator »contacts >and contact carrying
‘.20 ïparts, whereby'all;of-therinsulation is in the com
((1200-70)
IFig. 18 'is-aiview similar to yFigure 2, with the inf
sulating :terminal carrying cover removed to ex
-:pose fthe> ycontact carrying commutator;
vFig.;9-is;a~>:view similar to Figure 8, butwith the
»commutator lifted o?fcto exposefthe commutator ‘.5
actuating‘mechanism;
¿Fig ;10,~is» ¿a view similar to Figure 9, but with
TJthe 'latter Imechanism ‘lifted ofi -to expose the
yoperating :mechanism carried bythe actuating
*memberì'
'
`
'
'
`
f
l'
Fig. 111 is `afplan -view‘of vthe opposite side
»Offtherterminal and'contact-carrying plate from
thatzshown in.;Figure.-2;
.
’
Fig. i12 „iis an enlarged detail side elevational
.viewgofthecommutator actuating mechanism;
.=Fig.j~1r3 fisa view of the «latterat right angles to
Figure 12, and
f
-.ìlî‘ig. :14 isya bottom-plan-view'of the mechanism
.shownfin Figures'¿12l-and;13. f
‘
YîInLthis construction, itwill lbe noted that I have 20
.imutator :anda-.terminal carrying cover while all .shownmyv‘improved ¿switch disposed in a frame
Iofîthefrestßof thenmechanism and casing is “dead” íorLcasingf-member I housing‘a suitable commu
4iii-such;manner‘asfto 'eliminate any need forfan ;tator,.~generallyindicated at `2 and carrying a
outer insulatingcasing. Further'objects are the :multiplicity fofA contacts lcooperating with> con- ¿25 ¿production of .such :an improved switch `which 'ïtacts ¿carried :on a `cover Yplate 3, .which in turn .25
fdespite?tsismallfsize?s of nsuch .character as to carries „suitable ',ïterminals, the casing vI herein `
.meet ,fthe '.'underwriter’s requirements previously g-havingga suitable Àface plate 4 attached thereto
incapable ofbeing fmetginfswitches of this size, .„and'qthefpswitchmechanism having an actuating
:and:a1so‘to provide raswitch which‘isadapted to >>memberïä` projectingthrough a slot.6 in this plate
-„llandoperativelyconnected‘to actuate the com- 30
'30 .be manufactured -at lsubstantially 'smaller eX
pense than otherqswitches ¿of .this class previously fmutator »2.»with a snap. action through improved
,-produced. Theseand other objects and-advan
tages fof vmy Yimproved construction will, how
¿mechanism y»hereinafter .-described.
¿Referring morevparticularly to the casing -I,. it
.fwillfbe >fnoted‘fthat this casing I herein ispref
In .»thefaccompanying drawings I have shown Vverablyfmade _entirelyîof 4metal and comprises a ¿35
for ¿purposes _of illustration one embodiment wbottom` xportion or plate -1'and upstanding spaced
«,sidesß, 4while:both-,ends are open, and-oppositely
awhichmyinventionfmay assume in practice.
fextendingìlaterallugs 9 .are provided on the end
.adjacentthe actuatingmember `to provide con
lïlï’igure f1 i-s-a front view of myimproved switch; snecting'~means
.for screwsA Ißconnecting the face _.40
fFig..2,_is aplan view of the ¿switch shown there
thereon. I.Herein also, the sides 8 are pro
.ing-the'insulating'terminal ¿plate being exposed ¿plateJl
:and .the actuating member-being illustrated in .videdwithopenings I I therein beyond which the
`contactspn the commutator >2 extend,.as indi
-vdiiîerentpositions in .full and dotted l’mes;
.catedin Figure 6,»whi1e posts ,I 2 at opposite ends
Fig. v3 is a lsidefelevation of the switch of Fig
of. each sideare provided with »upstanding lugs or l45
>45 .ure >2, the ¿face plate‘b'eing» omitted;
Fig.~4 is an end 4View of the switch shown in extensions I3 thereon which are adapted- to be
„Figure 3, the actuating member being swung to .bent over, as shown lin Figure .2, to position the
À`terr'ninal carrying plate> 3 andiholdthe parts as
-¿ the `fright into the “on” position;
«sembledto >form a unitary structure.
(Fig. -5 isa sectional view‘on line-5_5 of Fig
Referring more _particularly to the switch 50
v§50 ure 2, the vView being substantially enlarged as
.mechanism which .is carried in the casing I, it
«comparedwith that ñgure;
.
.
ever, »hereinafter more `fully appear.
¿Fignö isasectional View on line 6_6 of Figure
l2, this .View _also -being onthe scale of Figure 5;
Fig. '7 isa detailfsectional -viewì on line 1-1 of.
$555 Figure 6 ;
will be notedithatl the same -includesa notched
,plate IA Vresting flat on the bottom 'l inside the
,latter ,and- suitably vattached thereto as by rivets
15. ,'.Herein .this -plate AIltis cutoutto‘provide a -~55
2
10
»
Y
2,121,570
central flat bottomed, round recess I6 having `a
series of peripheral, rectangular notches I'I, I8
and i9 -disposed on opposite sides thereof and
spaced from one another, as illustrated in Figure
10, with the bottom of each notch preferably dis
groove 36 in the upper end of the sleeve, while
the latter is also positioned by a like Washer 33’
on the post I9'. Moreover, it will be noted that
the spring 34 has its opposite extremities ex
posed as herein in the same plane as the bottom
tended laterally in the same direction on opposite
of recess I6. Disposed axially of this recess I6 is
a stud I9’ suitably ñxed at its lower end in the
bottom 'I and projecting upward therefrom to a
si-des of the upstanding projection 22 on the hub
20 and the adjacent arm 25 on the member 23.
Thus, this spring is tensioned by the projection
point slightly beyond the top of the insulating
22 whenever the actuating member 5 is moved
plate 3. Further, rotatably mounted on this stud
is a hub portion 2D on the actuating member 5,
about the stud I9’ as an axis while also being
compressed by the member 28 as the latter moves
which rests flat on the bottom of the recess >I6
upward.
and is movable therein to permit the member 5
15 to occupy any of the three positions illustrated
in Figure 2. Herein it will also be noted that the
actuating member 5 is slightly raised with respect
to the hub portion as by bending up the shank of
the actuating member so that it moves above
20
notched spring washer 35 suitably seated in a
the adjacent portion of the plate I4. As shown,
the hub 28 also carries oppositely disposed arms
or projections thereon having fiat bottoms turn
ing on the bottom of the recess I6 and'rounded
tops forming cams 2l which rotate with the
25 member 5 and hub 20 from the dotted line posi
tion indicated at A in Figure 10 through the full
line position illustrated therein to the dotted line
position indicated at B in that ñgure to actuate
the contacts and ratchet as hereinafter described.
30 Moreover, it will be noted that the hub portion 20 ,
has thereon an upstanding member' or'lug 22 on
the side thereof diametrically opposite the actu
ating member 5 and that this lug projects up
wardly a substantial distance, as illustrated in
Figure 5, to permit it to cooperate with other ele
ments of improved switch actuating mechanism
Accordingly, whenever the actuating
member 5 is swung to swing the cam members 2|
and thereby raise the cams 3| and raise the lugs
32 vertically and release the same from any pair
of the notches I'I, I8, I9, this single spring acts
to swing the member 23 about the stud I9’ as an
axis laterally with a snap action through connec
tions hereinafter described and thereby swings 20
the movable commutator 2, while also forcing the
member 28 and lugs 32 down in each new lateral
position thereof to seat said lugs in the proper
notches ITI,
I8 or I9.
,
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’
Referring more particularly to the commutator ,
2, it will be noted that the latter is rotatably
mounted on the stud I9’ above the washer 33’ and
that the commutator 2 has improved means for
rotating the `same thereon asv the arms 25 are
rotated by the spring 34upon movement of the 30
actuating member 5. More particularly, it will
be noted that the projections 2'I on the arms 25
are received in oppositely located'notches 38 in
the commutator member 2, so that the com
mutator 2 Will move in either direction with a 435
snap action as the lugs32 move between dif
~
ferent positions relative to the notches I1, I8, I9.
Referring more particularly to the actuating
It will also be noted that the commutator herein
hereafter described.
mechanism, it will be noted that the same in
cludes a combined cam and contact actuating
mechanism herein including a member 23 jour
naled as at 29 on the stud I9’ just above the hub
portion 28. Moreover, it will be noted that this
member 23 is provided with a pair of upstandlng
parallel arms 25 on opposite ends thereof and
having bent upper ends 26 carrying upstanding
projections 21 on their extremities. Herein it
will also be observe-d that a cam carrying mem
ber 28 is seated on the member 23 >between the
50 arms 25 and that this member has spaced lugs
29 at each side thereof disposed on opposite sides
of one of the arms 25. Moreover, at right angles
to these lugs and also on each side of the mem~
ber ,28, cam carrying wing members, generally
55 indicated at 38 are provided which extend out
ward and then downward in opposite directions
is in the form of a single thin insulating disc and
has an elongated axial eyelet or sleeve 39 therein» -40
journaled on the stud I9', andan outer shorter
sleeve 39’ attached to the outside of the upper
end of the eyelet 39 by turning over the upper
end thereof. This commutator -disc herein also
has a plurality of multiple contact members 40
thereon, herein superimposed in pairs disposed on
opposite sides of a -central line passing through
the center of the notches 38. v Herein it Will also
be noted that each of these four contact members
48 is identical, and that two of the latter are pro
vided on each face of the commutator.
More~
over, each has projecting contacts 4I, 42, 43 or
4I', 42', 43’ overlying like contacts on its com
panion member 4B disposed on the opposite
side of the commutator1 disc 2, while the two co
operating members 48 on each side ofthe center
laterally in such manner as to overlie and extend
to opposite sides of the cam members 2| on the
line are suitably connected to each other and the
hub 23 of the actuating member 5. It will be ob
60 served that the members 30 are provided with
oppositely sloping spaced cam surfaces 3| adapted
to be engaged and ycooperate with these members
2l, while the members 30 are also provided be~
be noted that on each side of the center line
tween the cam surfaces 3 I ,but on the peripheries
65 of the members 3Ilbeyond these surfaces 3 I, with
depending lugs 32 adapted to `be received in dif
ferent positions in the notches I'I, I8 and I9, and
to move vertically into and out of said positions. l
Acting upon the hub of the member 28 at one end
and disposed coaxially outside a sleeve 33 ñxed to
the member 23 and extending up through the
disc 2, as, for example, by rivets 40’. Thus it will
mentioned, three pairs of spaced contacts of some
resiliency are provided projecting radially from
the disc and spaced from one another in such
manner as to enable each pair to receive between
them in different rotative positions of the com
mutator, a cooperating stationary contact here -65
inafter described and carried on the cover or
terminal plate 3. Moreover, it will be noted that
the contacts 4I, 42, 43, or 4I', 42', 43’ are disposed
at equal distances from one another, >and that
the same are free to move in opposite directions 70
about the axis of the'stud I9' as the commutator
2 is caused to be moved in either direction with a
member28, is a single coiled spring 34, the op
posite end coils of which engage the hub of the
snap action by the actuating mechanism therefor,
member 23 and a washer which is. carried by the `heretofore described, and actuated by the move
sleeve 33 and herein positioned by a removable ` ment of the actuating member 5.
«amalgam
`.Cooperating with Y.this commutator ¿2 :fare `also
:on the fmember C30 will ë’be forced .down .as ythe
`improved stationary contacts. `Herein ethese \ con
¿compression ‘ on ‘the . spring ..34 >is relieved, -in such
ïtacts are .oarriedfon the cover l.plate ~3, :which is
also a thin insulating aplate, and these contacts
»comprise .a .plurality of stationary1contact .por
`lmanner Vas sto seat these lugs .in the notches «I'1.
Ylatter as shown at .54. 'vl-IeretalsoLit’will .benoted
`.thatfbinding.screws144', 45', 46%,-'41’ yand ‘48’ «are
-carried -on these terminal -plates'to enable ythe
connections of conductors forathe contacts 44,45,
"46, ‘47 and .48. Attentionîhere is also directed to
.the fact'that the apertures'50 for the Shanks ‘49
ltionarßyfcontacts -45, 46,41, 48, respectively, and
flïurther, .it willïbe evident that‘asithe member128
.'isfthusswung with a snap aotion,.fit will similarly
tions £44, §45, 136, 4-1 fand V48-disposediparallel .to-¿the «swing =the yfmember 23, while .the latter being
¿plate ß and .spaced itherefrom, .as yillustrated in connected throughthe extension v2.1 on its up
îFigureiS; »As shown,~eachccontact .portionris con `:standing :arms ‘.25 with 'the :commutator .2, the
nected to .the'plate by'afsuitable terminal vshank latter will .be- `rotated in a counter-clockwise ydi
>«t9 .extending upward'ithrough a suitable aperture rection v.with .a quick snap action fromzthe posi
¿5B in 'the plate 3, .and each shank :also -has .a tion shown lin Figure"18 into its next position.
Alaterally .deiìected vterminal .portion 15| 'thereon `More particularly, :it will .be .observed that in
4on :the outer face of :the .plate ‘.3 .and vprovided `this latter position, the .movable contact £3 'has
with oppositely located downturn‘ed vportions P52 :swept fover .both sides :of stationary contact 144
¿extending down through suitable apertures 5-3 in Tinto .engagement therewith, while movable con
'-ïthe fplateand turned Vover .on'the inside ~of 'the ftacts .42, fill, .41', 42', »similarly engages lsta
are elongated as shown iin îFigure 1'1 to permit
«both each shank ligandeach adjacent :binding
„25 screw'to fextend downward through opposite ends
of @the same aperture. Also,.it vwill be noted that
the cover plate i3 is suitably positioned «.on the
Stud by a removable .washer155„similar -to the
washers 35 and 33', land receivable iin a suitable
.30 groove in the end of the shaft. îHerein, 4it will
also be observed that the cover plate 3 rests
on alike washer’äß, below thefsame‘andsimilarly
seated .in the stud and which in turn forms Van
abutment for the upperend of thesleeve or eye
:movable contact S43’ is then out of contact with
any -stationary contact and vdisposed in align
iment ‘with the 'longitudinal or “off” y.position of '.20
.the actuating `.member 5. Obviously, when the
l.member f5 is reversely -moved from the upper
:dotted yline position shown in Figure 2 back to
Athe central “oir” «position shown .in full lines lin
that Iñgure, the Áparts will be reversely operated ',125
»'to zreturn >the same automatically »and with a
«snap action, while 'if the actuating Vmember 5 is
`then moved to the fother dotted lline ‘fon” .posi
tion shown in Figure v2, the parts ywill be oper
`ated similarly, itlbeing understoodthat when 'the
`actuating member is swung in :one direction,
herein toward lthe upper dotted position, the
commutator A2 will »be >swung counter-clockwise,
while when the member 5 is moved in the oppo
let-’39, the structurethus being such as, .with‘the
overturned ends i3, .eiîectually vto prevent dis
placement of the stationarylcontacts relative to
fsite‘direction, -the commutator 2 will be swung ï
clockwise, .and lthat in either position one of
fthe ~movable 'contacts on the commutator will
`engage the contact 146. Further, it will be evi
the commutator.
`
‘
'
ydent lthat .in either l'dotted line position, all of
4In the operation of the'switch, it Vwill beeví
dent‘that, assuming Athe actuating lmember F5 to fthe movable contacts -save one will be --in engage
‘bein its central “01T” position 'illustrated in full ment -with na stationary contact, and that the
‘lines in Figure 2, the switch mechanism `>will be Y‘movable contact then not in use will alternate
actuated when the member »"5 -is moved into any between the movable contacts rv'43 and 43', de
of the positions shown in that ‘ñgure `Withthe pending upon `»the direction of Amovement of the
parts in “oiî” position, »the actuating 4me1nber"5 actuating vmember 5, movable Contact 43’ being r»
and cams 2| will be in theposition shown in full vtheinactivecontact when actuating member 5 is
lines in Figure l0, while the commutator ‘will moved to the upper dotted line positionßof Fig
be in the position illustrated yin Figure18, and lure 2 and movable Contact 4‘3 being the inactive
Ythe commutator actuating mechanism lactuatedy lcontact when the actuating member 5 is moved
vto the lower .dottedëline position shown in that 1f.
by the cam members 2l and upstanding pro
jection 22, will be in the position shown in Fig
ure 9. More particularly considering the oper
ation and assuming the actuating memberi 'to
`be swung from Áits central “01T” -position ‘toward
the upper dotted line position shown in Figure
2, vthe cams 2| will »move counter-clockwiseV ‘from
the position shown «in Figure "10 -intoengagement
with diagonally disposed cam surfaces tSlfonfthe
member 30 in suchmanneras'l to raise the latter
member vertically and thereby cause >the vde’
pending >lugs 32, which are lthen in engagement
with oppositely located central notches >|8„\to be
figure.
.As a result -of my improved construction, it
will be noted that `it `is made possible 'for the
single spring .34 to function .not only as the ac
tuatingmeans for actuating themovable contacts ,-L .
:witha quick snap action beyond thecontrol of
the operator moving the actuating member,'but
also .to vactuate the movable member 28 which
»carries 'the depending lugs ‘32 v‘of the ratchet
Ämechanism which-comprises these lugs and the‘ no
notches ël'l, ¿i8 and i9, fthe structure being such
'as "to -oompress this .spring v34 at'the same time
ìthat‘vthe latteristensioned and thereby enable it
vraised. above those notches. As these -’lugs l32
are being thus raised to release the member l~313, ~ 4not yonly -to swing lthe Vmovable contacts as de
"soribed but `also `to seat the =1'ugs32 in 4their ‘newf'l ‘
£555 it will be noted that the spring 34 is -both ten
sioned and compressed, the same being tensioned positions relative to -thenotches Here attention
by the movement of the projection 22 relative isalso-directed to the fact that the actuation yof
Ato the adjacent lug '25and being compressed l'by the parts is not A.only such that the same will
the Àvertical movement of the member 28 'by the move `with certainty .from one -position to an
other, lbut the arrangement‘of the raised portiond'
TED cam members 2|. As a result, when the ’lugs 32
are lifted clear of `the Vnotches i8, the Fmember ron'the shank of thevactuating member »5 islsuch
relative to >the :bent down ends of `the cams 3|`
28 will be swung by -the spring ‘34 from a -posi
tion over the notches I8 to a` position over the
that, should there be any sticking of the con
notches Il with a quick snap action, and, `when
over the `latter notches, ’the depending 'lugs v32
'ßtacts„this shank yportion will engage the portion
fof theeigteriorof the adjacent cam 3l in -such
4
2,121,570
manner as to provide a positive kick off for the
same and the connected mechanism which is
available in all movements of the actuating mem
ber 5.
Furthermore, it will be observed that the
directions for tensioning and releasing said spring
to actuate the movable contact mechanism there
from and compressing and releasing said spring
to actuate said holding mechanism therefrom.
structure including the stationary central stud
3. An electric switch having movable contact
and the coaxially disposed elements rotatable
relative thereto, isv an exceedingly simple one
and one which requires only a small number of
parts and parts which are of a rugged construc
tion and adapted to long operation without ap
preciable wear while being capable of being
cheaply produced. It will also be observed that
mechanism, cooperating ratcheting mechanism
having stationary and movable ratchet elements,
and actuating mechanism including an .actuating
the structure is exceedingly compact and that,
despite its compactness, it has a current capacity
substantially greater than it has heretofore been
possible to obtain in a switch of the same size.
Attention is also directed to the fact that all of
the mechanism save the movable and stationary
contacts carried by the insulating plates, is dead
20 electrically, so that the structure is not only safe
but such as to permit it to be used without any
necessity for an outer insulating casing such as
has heretofore been provided in switches of this
type. It will also be evident that with this con
25 struction, it is possible to vary the wiring or cir
cuit connections readily within wide limits, as,
for example, by connecting conductors to the
terminals in such manner that, in one end po
sition, the switch is adapted to connect the cir
30 cuits for a high heat, while in the other end po
member movablel in reverse directions and hav
ing a single spring operatively connected to actu 10
ate >said actuating mechanism. and move said
movable ratchet element relative to said station
ary ratchet element when said member is moved
in either direction.
4. An electric switch having movable contact 15
mechanism, ratcheting mechanism comprising a
stationary ratchet member and a relatively ver
tically movable ratchet member cooperating with
said stationary member for positioning said con
tact mechanism in different positions, and actu 20
ating mechanism including an actuating member
movable in reverse directions for releasing said
movable ratchet member, said actuating mecha
nism having a single actuating spring also oper
atively connected between said movable ratchet 25
member and actuating member and moving said
movable ratchet member vertically relatively to
said stationary ratchet member.
5. An electric switch having movable contact
mechanism movable in reverse directions, coop
30
sition a low heat is provided, or so that either
erating ratcheting mechanism therefor, a single
circuit may be “on” while the other is “off”, or
as, for example, either in portable hot plates or
ranges or wall switches or the like. Further, as
spring, and means operable in reverse directions
for tensioning and releasing said spring to actu
ate the movable contact mechanism therefrom
`and compressing and releasing said spring to 35
actuate said ratcheting mechanism therefrom.
6. An electric switch having movable contact
means, ratchet means controlling the latter and
regards size and cost, it will be apparent that
including a stationary and a cooperating mov
one circuit may be “on” in one end position and
in the other end position two circuits will be
35 “on”, all in such manner as to make the same
adapted to use under a wide range of conditions
40 the improved switch occupies substantially less
space and can be furnished at a fraction of the
able ratchet element, mechanism for releasing 40
cost of other switches heretofore believed to be
required to meet the Underwriter’s requirements
on portable hot plates and electric ranges. These
45 and other advantages of my improved construc
tion will be clearly apparent to those skilled in
stationary, and operative connections actuated
by said mechanism having a single spring for
thereafter moving both said movable contact
the art.
~
While I have in this application speciñcally
described one embodiment which my invention
50 may assume in practice, it will be understood that
this form of the same is shown for illustrative
purposes and that my invention is not limited to
this embodiment but may be modiñed and em
bodied in other forms without departing from
55 its spirit or the scope of the appended claims.
What I claim as new and desire to secure by
Letters Patent is:
1. An electric switch having movable contact
mechanism, cooperating releasable mechanism
60 for holding said contact mechanism in its differ
ent positions, and actuating mechanism includ
ing an-.actuating member movable in reverse di
rections and having a single spring compressed
and torsioned upon operation of said ratchet
65 mechanism and having the compression and tor
sion forces thereof actuating said holding and
contact mechanisms respectively when said mem
ber is moved in either direction~
2. An electric switch having movable contact
70 mechanism, cooperating releasable mechanism
for holding said contact mechanism in its differ
ent positions, and actuating mechanism includ
ing an actuating member movable in reverse di
rections, a single spring, and means operable
when said actuating member is moved in reverse
said ratchet meanswhile said contact means is
means and said movable ratchet element relative 45
to said stationary ratchet element.
'7. An electric switch having movable contact
means, ratchet means controlling the latter and
including an axially movable element, cam, mech
anism for releasing said ratchet means while said 50
contact means is stationary, and operative con
nections actuated by said mechanism having a
single spring for thereafter moving both said
movable contact means and said movable ratchet
element into new positions, said spring being both 55
tensioned and compressed upon operation of said
cam mechanism and released upon release of said
ratchet means.
8. An electric switch having movable contact
mechanism. movable in fixed planes, ratchet 60
mechanism positioning the same in different po
sitions having an axially movable element, an
actuating member, and means including a single
spring tensioned and compressed upon move
ment of said actuating member for moving said 65
movable contact mechanism in said planes into
a new position and actuating said axially mov
able element of said ratchet mechanism to hold
said contact mechanism in the new position.
9. In a switch, contact mechanism having a 70
stationary member and a rotary member held
against axial movement, ratchet mechanism hav
ing a stationary member and a rotary member
which is axially movable, a rotary transmitting
member actuated by said movable ratchet mem
75
5
2,121,570
ber for turning the rotary contactv member, and
actuating mechanism for _the ratchet mechanism
having Ia single‘coil, spring whichv istensioned
ber, said actuating mechanism being carried on
the bottom of said casing, a commutator within
said casing, and carrying movable contacts actu
forturningthe vmovable ratchet member and
compressed for reseating said member. y
10.. In a switch, a reversely movable camfmem
ated with a snap action by said spring means of
said ractuating mechanism, and a cover plate
ben-„ratcheting mechanism` including a> movable
ratcheting member cooperating` with said cam
member in either direction of »movement thereof,
10 and contact swinging and ratchet releasing and
seatingv mechanism operative in either direction
commutator.
,
’
a ratcheting plate, a cooperating rotatable and
operating member movable with said movable
ber, a pivoted actuating member, and means op
erative thereby for actuating said movable ratch
member.
u
.
.
A
>
11. Ina switch mechanism, aY ratchet plate,
20 a movable cam„a spring pressed cam cooperating
cams on said actuating member and oppositely
extending camsv on said movable ratcheting mem
ber overlying said first cams and each having
depending oppositely inclined portions each en 20
gaged by one of the cams on said actuating
operating with said ratchet plate, movableV con
member.
25 spring pressed cam when the latter is disengaged
from said ratchet plate,.and ,means for positively
actuating said spring- pressed cam should said
contactmeans not be completely swung by said
swinging
means.
`
.
_
i
15
eting member comprising oppositely extending
with said cam and having projecting means co
tactjmeans relative to which said cam is mov
able, means for swingingsaid means with said
10
16. A switch actuating mechanism «comprising
axially movable spring pressed ratcheting mem
of said last named members and both tensioned
and compressed upon movement of said Acam
i
17. In a switch, actuating mechanism having
an actuating member provided with an upstand
ing portion, cooperating ratcheting mechanism 25
including >an angularly and vertically movable
ratcheting member movable upon operation of
said .actuating member and having a projection
movable with said vertically movable member
«12.A In a switch, a frame having> a ybottom and
and disposed adjacent said upstanding portion, 30
a cover„a swinging actuating member pivoted on
a vsingle coiled spring disposed around the axis
of said >movable ratcheting member and com
pressed. upon -vertical movement thereof and
having opposite endsextending on opposite sides
of both said portion and projection, and movable 35
contact 'means engaged and actuated by said
said frame, snap actuating mechanism actuated
by said actuating member and carried by said
bottom withinsaid frame, a rotary commutator
35
anism and cooperating with contacts on said
of.;movement ofsaid cam member- including ya
member -movable with saidcam member, a co
1-5 ratcheting member, and a spring acting on both
30
closing r'the open top of- said casing and carried
by said sides -havingon said cover plate station
ary contacts independent of said actuating mech
ñxed `against movement alongits axis .in said
frame and disposed in‘planes parallel to the path
`ofsaid swinging> member and actuatedby said
snap actuating mechanism and carrying a series
of 'contacts extending vradially in lopposite direc
40" tionsfrom said'axis, and stationary contacts car
ried by said cover cooperating with the contacts
on..said
commutator.
s
,„
_
.13. In a switch,~a frame, anactuating member
extending into said frame, snapv actuating mech
45 anism actuated by said actuating member and
within said .-frame, a rotary commutator ñxed.
against axialmovement in said frame and actu
ated by said snap actuating mechanism and car
rying a plurality of laterally projecting contacts
50 extending radially _inl opposite directions from
said axis, a cover plate of insulating material
carried by said frame, and stationary contacts
carried by said cover plate and having depending
portions extending within said frame and be
55 tween contacts on said commutator.
14. In a switch, a frame, a swinging actuating
member pivoted on said frame, snap actuating
mechanism actuated by said actuating member
and within said frame, a rotary commutator ñxed
projection - and . said spring.
18. A switch actuating mechanism comprising
a holding plate, a cooperating rotatable and ax
ially movable spring pressed holding member, an 40
actuating member, and means operative thereby
for actuating said movable holding member com
prising laterally and oppositely extending cams
on said actuating member and laterally and op
positely extending cams on said movable hold
45
ing member . having depending oppositely in
clined >portions between which said first men
tioned laterally extending cams are disposed.
19. Aswitch actuating mechanism ycomprising
a ratcheting plate, a cooperating rotatable and 50
axially movable spring pressed ratcheting mem
ber having peripherally projecting portions, a
pivoted actuating member, and means operative
thereby for actuating said movable ratcheting
member, said ratcheting plate having an axial 55
aperture therein and ratchet notches communi
cating with said aperture and receiving said pe
ripherally projecting portions of said spring
pressed ratcheting member in different positions,
ated by said snap actuating mechanism in planes
and said last mentioned means having rotatable 60
cam means disposed in said aperture and oper
parallel to the path of said swinging member,
ating said movable ratcheting member.
60 against axial movement in said frame and actu
and stationary contacts carried bysaid frame co
operating with the contacts on said commutator,
65 said commutator carrying a plurality of series of
contacts insulated from one another and said sta
tionary contacts including a contact engaged by
one contact of one series in one position of said
actuating member and by a contact of another
70 series in another position of said members.
15. In a switch, a casing having upstanding
sides and a bottom .and an open top, an actuat-.
ing member extending into said casing, snap ac
tuating mechanism within said casing including
75 spring means actuated by said actuating mem
20. An electric switch having contact mecha
nism including contacts movable about a vertical
axis, ratcheting mechanism comprising a sta
65
tionary ratchet member and a movable ratchet
member having projecting portions cooperating
with said stationary member for positioning said
contacts in different positions, actuating mecha
nism including an actuating arm having an ac
70
tuating portion located between said stationary
and movable ratchet members and an operating
arm projecting outwardly between the project
ing portions of said movable ratchet member
and movable in reverse directions relative there
75
6
2,121,570
to for releasing said 'movable ratchet member,
and an actuating spring having an operative
20
25
30
35
40
45
ating mechanism including an actuating arm
movable about said fixed spindle and having an
upstanding portion and cam portions on opposite
sides of said spindle for raising said movable
ratchet member to release the latter from said
cooperating member, and a spring operatively
connection between said movable ratchet mem
ber and said actuating- arm for moving said
ratchet member in the direction of movement of
said actuating member following the release of
- connected between the upstanding portion of
the former by said actuating member.
said actuating member and said movable ratchet
21. An electric switch having contact mecha
member constantly urging said ratchet members
nisrn including contacts movable about a verti
into engagement and moving said movable ratch
cal axis, ratcheting mechanism comprising a sta
tionary ratchet member and a movable ratchet et member and movable contact mechanism in
member having projections cooperating with said the direction of movement of said actuating
stationary ratchet member for positioning said member following releasing of said ratchet mem
contacts in different positions, an actuating arm ber.
24. In a switch, actuating mechanism having
extended between said stationary and movable
an actuating member provided with an upstand
ratchet members and movable in reverse direc
tions for releasing said movable ratchet member, ing portion, cooperating ratcheting mechanism
including an angularly and vertically movable
said movable ratchet member having its projec
ratcheting member movable upon operation of
tions disposed on opposite sides of said actuat
said actuating member and having a projection
ing arm, and .an actuating spring having an op
erative connection between said movable ratchet movable with said vertically movable member
member and said actuating arm for moving said and disposed adjacent said upstanding portion, a
single coiled spring disposed around the axis of
movable ratchet member when the latter is re
said movable ratcheting member and compressed
leased.
22. In an electric switch, a casing having a upon vertical movement thereof and having op
posite ends extending on opposite sides of both
iixed spindle, contact mechanism including con
tacts movable about said spindle, ratcheting said portion and projection, movable contact
mechanism comprising a stationary ratchet means engaged and actuated by said projection
and said spring, and a stationary stud extending
member and a vertically movable ratchet mem
ber cooperating with said stationary member for axially through the switch and having all of the
positioning said contacts in different positions, movable parts of the switch rotatable about the
actuating mechanism including an actuating axis of said stud.
member pivotally mounted on said spindle hav- '
25. In a switch, a frame of conducting mate
ing its actuating portion located adjacent said rial, a cover plate of insulating material carried
movable ratchet member on the opposite side by said frame, a disc-like commutator member of
thereof from said movable contacts and movable insulating material swivelled in said frame to
in reverse directions for releasing said movable turn in a plane parallel to said cover plate. con
ratchet member, and an actuating spring having tact members on said commutator member hav
an operative connection between said movable ing interconnected contact arms projecting pe
ratchet member and said actuating member for ripherally from opposite faces of said member
moving said movable ratchet member whenever and providing pairs of opposing contacts, ter
the latter is released by said actuating mecha
minal members on said cover member having
portions extending therethrough and into said
nism.
23. In an electric switch, a casing having a frame and provided with inturned contact por
fixed spindle, stationary and movable contact tions adapted to extend between and bridge op
mechanisms, ratcheting mechanism comprising
a stationary ratchet member and ,a relatively
vertically movable ratchet member cooperating
with said stationary member for positioning said
contact mechanism in different positions, actu
posing contacts of said commutator member, and
means for swinging said commutator member
with a snap action.
JOHANN G. PETERSON.
10
30
35
40
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