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Патент USA US2109054

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Feb- 522, 1933-
E. M. SORENG ET AL
2,w9,@54
SWITCH
Filed July 27, 1934
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INVENTORS
EDGAR M. So?'ENe
CARL. WILL
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BY
PM
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ATTORNEYG
2,109,054
Patented Feb. 22, 1938
UNITED STATES PATENT ?OFFICE \
2,109,054
SWITCH
Edgar M. Soreng, Chicago, Ill., and Carl Will,
Minneapolis, Minn., assignors to Tropic-Aire,
Incorporated, Minneapolis, Minn, a corpora
tion of Delaware
Application July 27, 1934, Serial No. 737,262
3 Claims. (Cl. 200?167)
Figure 1 is a side? elevation, partially in section,"
This invention relates to new and useful im
showing the improved switch;
provements in electric switches, and more par
ticularly to a switch comprising a plurality of
sets of contacts and a circuit closer having means
5 for selectively moving it into engagement with
said contacts.
An object of the invention is to provide a switch
comprising a plurality of contacts and a circuit
closer having a member for selectively moving
H O it into engagement with said contacts, and said
member having means associated therewith for
indicating the position of the circuit closer.
A further object is to provide a switch com
prising a plurality ofcontacts and a circuit closer
1 therefor, and an operating member for selec
Figure 2 is a cross-sectional view on the line
2?2 of Figure 1, showing the gravity operated
disk or element in its normal circuit opening
' en
position;
Figure 3 is a view similar to Figure 2, but show
ing the operating member rotated to the HI, or
high speed position;
Figure 4 is a front view of the operating mem
10
ber positioned as shown in Figure 3;
Figure 5 is a view similar to Figure 2, but
showing the operating member rotated to cause
the low speed circuit to function;
Figure 6 is a view similar to Figure 4, showing 15
tively moving said circuit closer into engagement the operating member positioned for low speed;
Figure 7 is a plan view showing the relative
with said contacts, and said operating member
having an illuminated chamber therein. one wall positions of the various contacts of the switch,
of which is provided with suitable indicating - and showing the circuit closer in its normal cir
20 openings bearing a certain relation to said con
tacts. and a gravity operated element being pro- .
vided in said chamber and adapted. to close one
or the other of said indicating openings, whereby
an operator may at all times quickly note the
25 position of the circuit closer of the switch with
respect to said contacts.
cuit opening position;
Figure 8 is an end view of the operating mem
ber with the front cap or wall removed there
from;
'
Figure 9 is a perspective view showing the
semi-circular element of the operating member 25
removed therefrom;
Other objects of the invention reside in the
means provided within the operating member of
the switch for indicating the position of the cir
. Figure 10 is a perspective view showing the
operating member which comprises? an illumi
ating member, partially in section;
transparent wall of the operating member re
moved therefrom;
Figure 11 is a side view of the body of the oper
30 cuit closer; in the particular construction of the 1
natedchamber having a disk mounted for roll
ing movement therein and cooperating with
means in a wall of said chamber to indicate the
3
position of the circuit closer; and, in the simple
and, inexpensive construction of the operating
member of the switch. whereby it may be manu
factured at small cost and may readily be at
40
tached to ?other types of switches, where applica
ble, whereby the various positions of the operat
ing member of such a switch may readily be
noted.
'
Other objects of the invention will appear from
Figure 12 is a longitudinal sectional view on the
line _I2?-l2 of Figure 2, showing the relative posi
tion of the various parts of the operating mem
ber; and
Figure 13 is a perspective view of the disk-like
element. provided within the operating member.
In the selected embodiment of the invention
here shown, there is briefly illustrated in Fig
ures 1 and 7, a switch comprising a casing 72,
shown having mounted therein, a plurality of
contacts 3-3, 4-4, and 5?5. These contacts
are diagrammatically illustrated in Figure '7, and
the contacts of each set are adapted to be elec
trically connected by a circuit closer 6, which,
in Figure 7, is shown in its neutral or off position;
claims.
'
The contacts 5-5 are not electrically connected
In the accompanying drawing there has been . in a circuit, but merely function to retain the
disclosed a structure designed to carry out the circuit closer 6 in its neutral position.
The casing 2 is shown secured to a threaded
various objects of the invention, but it is to be
understood that the invention is not con?ned t3 sleeve ?I, which may be inserted through an open
the exact features shown as various changes ing provided in a supporting wall 8, such as the
may be made within the scope of the claims which instrument board of an automobile, and. secured
thereto by suitable lock nuts 9 and II.
follow.
A tubular member I2 is rotatably mounted
In the drawing:
the following description and accompanying
45
drawing and will be pointed out in the annexed
2
2,109,054
within the sleeve 1 and is operatively connected
to the circuit closer 6 by suitable means, not
. shown in the drawing, whereby the circuit closer
is rotated simultaneously with the member l2.
The contacts 3--3 are shownv provided with
terminals I 3 and I4, whereby said contacts may
be connected to the wires I5 and I6, respectively,
of an electric circuit.
~ In the drawing, the contacts 4-4 are shown
electrically connected to the contacts 3?3 by
suitable resistance elements l1, whereby when
the circuit closer 6 electrically connects the con
tacts 4-4, a resistance is interposed in the cir
cuit to thereby reduce the current ?ow there
The constructional details of the
15 through.
switch, per se, form no part of the present inven
tion, and it is therefore thought unnecessary to
further describe the same.
An important feature of the invention resides
in the means provided for indicating the position
of the circuit closer 6, which, as will be readily
understood by reference to Figure l, is enclosed
within the casing 2, whereby it cannot be seen.
The means provided for thus indicating the
25 position of the circuit closer 6 is embodied in the
construction of an operating member, generally
indicated by the numeral l8 in Figure 1. This
operating member comprises a cylindrical por
tion is detachably, but non-rotatably secured to
30 the end portion 2| of the tubular member l2 by
suitable means, not shown. An electric light
bulb 22 of conventional type is secured in a
socket 23 provided in the member l2, and is shown
having its outer end portion projecting beyond
the end of the member.
The cylindrical portion 19 of the operating
member? is shown provided with an outwardly
projecting ?ange or head 24, having a plurality
of notches 25 provided therein. The head 24 is
40 counterbore?d to provide a shoulder or- seat 26
adapted to receive a disk 21 of a suitable trans
parent material, which may be of any suitable
color such, for example, as red. A semi-circular
member 28 of a suitable opaque material, is seated
45 against the disk 21 and is shown provided with
outwardly projecting lugs 29 adapted to be re
ceived in notches 25 provided in the head 24, as
clearly illustrated in Figure-8. By spacing the
lugs 29, as shown in Figures 8 and 9, the member
50 28 cannot become disengaged from the walls of?
the head 24, when supported therein, as shown
in Figures 1 to 5, inclusive.
A suitable cap 3| is ?tted over the head 24 of
ber 28, as will be clearly understood by reference
to Figures 3 and 5. The disk 31 may be con
structed of metal or any suitable opaque mate~
rial having suf?cient weight to cause it to readily
roll by gravity, when the operating member 3|
is rotated from one position to another, as indi
cated in Figures 2, 3, and 5.
Assuming now that the switch is to be used for
controlling the operation of a motor having two
speeds, and that the circuit closer is positioned
as shown in Figures 2 and '7, in which the cur
rent supplied to the motor is cut o?.
The oper
ating member ?3 of the switch is then rotated to
the right, as indicated by the arrow in Figure 2,
until the circuit closer 6 bridges the contacts
3?3. When the circuit closer thus engages the
contacts 3?3, the full current of the circuit is
delivered to the motor, whereupon it will operate
at high speed. It is- also to be observed, by ref
erence to Figures 3 and 4, that when the circuit
closer electrically engages the contacts 3?3, the
semi-circular member 29 is rotated to the posi
tion, best shown in Figure 3, whereupon the disk
31 will be alined with the letters L0, and the
letters HI, indicating high speed will be visible
because of the light bulb 22 illuminating the
chamber 34 through the transparent disk or
window 21. It is to be understood that the light
bulb is so connected in the switch, that when the
circuit closer 6 is electrically engaged with either 1
set of the contacts 3-3 or 4-4, the light bulb 22
will be lighted.
If it is desired to operate the motor at low
speed, the operating member ill will be rotated
still farther to the right until the circuit closer
engages the contacts ?4-4, whereupon the re
sistances l'l-l l are interposed in the circuit, and
?thus cuts down the supply of current to the mo
tor. When the circuit closer is thus positioned,
the semi-circular member 29 will be rotated to
the position shown in Figure .5, whereby the disk
31 will move by gravity to the position shown in
this ?gure, thereby closingr indicating openings
36 or letters HI and opening the letters LO, which
will indicate to the operator that the motor is
operating at low speed. Thus, it will be seen
that the openings 35 and 36'are opened and closed
by the disk 31, by relatively rotating the operat
ing member l8, whereby the operator may always
readily note the position of the circuit closer 6.
The device is very simple and inexpensive and c1
may be used in connection with different types?
of switches employing a plurality of contacts and
the operating member l8, and may have portions a rotatably mounted bridge member circuit closer
55 of its ?ange 32 bent downwardly into certain of for closing the circuit between said contacts. It
the notches 25 of the head 24 to thereby prevent is to be understood that the switch is not to be
the cap from accidentally becoming detached limited to an electric motor, as it may be used in
therefrom. When the cap 3| is secured to the _ connection with various other electric circuits
head 24, as shown in Figures 1 and 12, the front where applicable. For example, it may be used
60 wall 33 thereof will be spaced from the rear trans
for dimming a set of lights, in which case, when
' parent wall de?ned by the disk 21 to thereby pro
the circuit closer is positioned across the contacts
vide a chamber 34 between said walls.
4-?4, the lights will operate at a lower brilliancy
The front wall 33 of the cap 3| is provided than when positioned across the contacts 3?3,
with suitable perforations or openings, generally because of the resistances l1 being? imposed in
indicated by the numerals 35 and 36. These the circuit.
. 6..
openings represent suitablev indicia as, for ex
It is also to be noted that the indicating means
ample, the openings 35 may be shaped to form the herein disclosed has no electrical connections
letters LO, indicating a low heat or a low speed with the electric circuit.
'
It operates independ-l
circuit, while the openings 36 may be shaped ently of the circuit, the small
disk
31
rolling
by
70 to form the letters HI, indicating a high heat or
gravity from one side to the other, as shown in
high speed circuit.
Figures 3 and 5, when the operating member i8 is
Means is provided within the chamber 34 for operated to rotate the circuit closer 6.
selectively closing the indicia openings 35 and 36
and comprises a small disk 31 mounted to roll
upon the edge portions 39 of a semi-circular mem
We claim as our invention:
1. The combination with a switch comprising
a plurality of sets of contacts, a circuit closer,
3
2,109,054
and a rotatable operating member for selectively
moving said circuit closer into engagement with
said sets of contacts, of means embodied in the
construction of said member and forming a
chamber, and a gravity operated element in said
chamber movable upon rotation of said operat
ing member to thereby indicate ?the position of
the circuit closer with respect to said sets of
contacts.
2. A switch comprising a plurality of contacts,
10
a circuit closer therefor, a rotatable member? for
selectively moving said circuit closer into en
gagement with said contacts, said member hav
ing a chamber therein, one side of which is de
?ned by an opaque wall having suitable open
ings or windows therein, and a gravity~ operated
element in said chamber cooperating with said
openings or windows to indicate the position of
the. circuit closer with respect to said contacts.
3. A switch comprising a plurality of contacts,
a circuit closer therefor, a rotatable operating
member for selectively moving said circuit closer
into engagement with said contacts, said operat
ing member comprising an inner transparent
wall and an outer opaque wall, means spacing
apart said walls to provide a chamber there
between, said opaque wall having spaced open
ings or perforations therein representing suit
able indicia, means for illuminating said cham
ber whereby light ?may be emitted through said 10
openings, and a gravity operated disk in said
chamber normally closing one of said indicia
openings and adapted to be actuated by rotation
of said operating member to thereby selectively
open or uncover said indicia openings, whereby
the position of the circuit closer with respect to
said contacts may readily be noted.
EDGAR M. SORENG.
CARL WILL.
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