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Feb. 22, 1949.
2 Sheets-Sheet 1
Filed Sept. 19, 1945
a; 54
9/63 64
Ga“, W,M+Qw.
Feb. 22, 1949.
2 Sheets-Sheet 2
Filed Sept. 19, 1945
Huron Rn PPL.
Patented Feb.‘ 22, 1949
‘ELECTRIC swrrcn
Anton Rappl, Eggertsville, N. Y., assignor to Trico
Products Corporation, Buffalo, N. Y.
Application September 19, 1945, Serial No. 617,338
4 Claims. (Cl. 200-6)
This invention relates in general to electric
switches, and particularly to a switch operable
in either direction from a neutral position, such
as might be employed for controlling a window
source of electricity, as for instance the battery
22, the other side of the battery being grounded
at 23. Two leads 24 and 25. connected to ter~
minals to be hereinafter described, extend to
solenoid operated control valves 26 of a type
shown and described in said copending applica
tion. The pressure line to this valve is indicated
at 30, and receives its source of suction either
operating system like that shown and described
in the copending application of Erwin C. Hor
ton, Serial No. 583,147, ?led March 16, 1945. In
the said application, a two-way switch button
from the vehicle motor or from a suitable vacuum
is employed, one for causing the window to be
pump. This pressure line is connected to the
elevated and the other for causing it to be
casing of the valve 26 and is communicable to
either branch conduit 3| or 32 which conduits
The principal object of the invention has been
are in communication with opposite ends oi‘ the
to provide a double acting switch controlled by
fluid motor i2, whereby upon suitable operation
a single turn knob, whereby a suitable circuit for
of the control switch, the motor will be actuated
opening or closing the window may be ener 15
and the window panel lowered or elevated ac
cordingly. The solenoid operated control valve
is shown grounded at 33 through the leads 34.
The control switch of the present invention
for keeping the control shaft thereof in its neu
comprises a housing 35 having suitable fastening
tral position and returning it to neutral from
ears 36, whereby it may be secured in place. The
either of its positions of operation upon release
housing is provided with a chamber 40 opening
by the operator.
into the rear face of the housing and between
Moreover, it has been an object to provide
the fastening ears. The chamber 40 terminates
Another object has been to provide a. double
throw switch with simple and efficient means
a switch so designed as to facilitate the assem
bling of the parts in proper relation to each other. 25 in a bottom wall iii in which is provided a shaft
bearing 52 concentric with the chamber.
The above objects and advantages have been
Journaled within the bearing 42 is a control
accomplished by the device shown in the accom
shaft 53 having a yoke 44 within the housing
panying drawings, of which:
chamber. The yoke has a base i5 and two out
Fig. 1 is a schematic view showing the use of
wardly extending control arms 46 and 5D. The
the switch of the invention in connection with a
yoke base and the adjacent ends of the control
window operating system;
arms are disposed within a stop recess 5| in the
Fig. 2 is an enlarged fragmentary longitudinal
chamber wall shaped to conform thereto and of
sectional view;
such site as to permit limited oscillation of the '
Fig. 3 is a slightly reduced view of the back of
yoke therein. Stop shoulders 52 are formed at
the switch;
each side of the recess for engagement by the
Fig. 4 is an enlarged view showing the interior
arms to limit their oscillatory movement.
. of the switch with the terminal plate removed;
The control shaft is provided with a central
Fig. 5 is a similar view showing the contact
53, extending outwardly from the base 45
arm and associated parts being removed; and
the control arms coaxially with the
Fig. 6 is a face view of the contact arm.
shaft. This stud is formed at its extreme outer
The switch is to be used in the same manner
end with a pilot 54 for journal support in the
as the switch of the aforesaid copending appli
fixed terminal carrying plate 55, to be herein
cation to remotely control the fluid motor of a
after described. Arranged about the stud 53 is
window operating system. in Fig. 1, iii repre
a centralizing spring 558 having its ends 50 over
sents the window panel which is mounted for
vertical movement in guideways H‘ carried by
the vehicle. A fluid motor ‘:22 provides motive
- power for elevating and lowering the panel. This
lapped in spaced relation and engaging opposite
sides of a centralizing lug ti on the side wall of
the housing chamber. This lug is preferably of
the same width as the control arm 46 whereby
motor is provided with a piston it to which a
the arm will also be engaged by said spring ends
flexible power transmitting member i5 is at 50 when in its neutral position. Obviously, initial
tached. This ?exible member passes through
tension is placed upon the spring so that its ends
suitable heads at each end of the cylinder and
will be maintained in ?rm contact with said lug
is connected to the panel by means of brackets
and said control arm 46, whereby to maintain the
It. The switch which is indicated at 20 in Fig. 1
yoke in its neutral position and to return it to
is connected by means of a lead 2! to a suitable
such position when released by the operator from
either position of actuation.
Diametrically arranged slots 62 and 63 are
arranged in the marginal portion 64 of the hous
ing for the accommodation of the terminal plate
This terminal plate which is of dielectric
material preferably ?ts within the marginal por
support thereto. The outer end of the control
shaft is formed with a knob 96 by which it may
bie turned in either direction from a neutral po
s tion.
From the foregoing, it will be obvious that
the interengaged parts are readily placed in
proper relation when being assembled, thereby
tion and has cars 16 and 1| extending into the
saving time and avoiding improper assembling.
slots 62 and 63. The slot 62 and engaged ear
It is further observed that when the control
‘iii are of considerably less width than the slot 10
shaft is operated either clockwise or counter
63 and engaged ear 1|, whereby the terminal
clockwise to the limit of its movement, as de
plate may be assembled in only one position,
thereby avoiding any confusion in the arrange
ment of the terminals carried by the plate. ' The
slots 62 and 63 are preferably out deeply enough
to cause the terminal plate to be inset suiiiciently
from the back face of theghousing so as to clear
all the terminals and connections carried by the
electrical contact with the corresponding one of
the contacts Si or 92, and that upon release of
the shaft it will be returned to neutral.
plate, to be hereinafter described.
The outer ends of the control arms 46 and 5G
of the yoke are in spaced relation with the inner
surface of the terminal plate and are provided
with driving lugs 12 and 13, respectively, ‘extend
ing above shoulders 14. A contact arm 15 is ar
ranged opposite the ends of the control arms and
is formed with an aperture 16 for engagement
with the driving lug 13 and with a slot 8e for
vbeing merely 9. preferred embodiment of” the
What is claimed is:
1. A two-way electric switch, comprising a
engagement with the driving lug 12. The driving
housing, an operating shaft journaled in said
lugs with their engaging recesses are preferably
housing and having spaced lugs Within said
of different sizes so as to assure correct assem
bling. The contact arm is of substantially the 30 housing, tension means yieldably maintaining
said shaft in a neutral position, a terminal plate
same thickness as the length of the lugs and
seats upon the shoulders 14. This contact arm
, carried by said
housing and provided with con
tact buttons, and a contact 'arm comprising a
is preferably of dielectric material and a con
- tact making plate 8| is secured thereto by turn
ing over the edge portions 82 of the plate into
dielectric plate carried by the lugs and formed
in each of its longitudinal opposite edges with a
recess, and a contact-making plate disposed over
the slots 83 in the margins of the contact plate.
said dielectric plate and secured thereto by tabs
formed on said contact-making plate and en
The slot 83 at one side of the contact arm 1.5
is narrower than the slot at the‘ opposite side
thereof and the turned over portions 82 of the
contact-making plate are of substantially cor
gageable with . the recesses of said dielectric
2. A two-way electric switch comprising a
housing, an operating shaft joumaled therein
responding widths, whereby in assembling the
parts, the operator will be sure to arrange them
in either direction from a neutral
in the proper relationship. The contact-making
plate 8| is provided with a centrally arranged
aperture I00 which is preferably larger than the
stud 53 over which it passes, so that there can
be no electrical contact between the plate and
position, resilient means yieldably maintaining
said shaft in the neutral position, said housing
being formed in its rearwardly extending edge
with oppositely arranged recesses of different
the stud.
widths, a terminal plate formed with projecting
A spacer plate 84 of dielectric material is ar 60 tabs of different widths for comfortable engage
ment with said edge recesses of said body, and
ranged between the contact plate and the contact
contact means on the shaft cooperable with the
terminal plate to close a circuit when moved
from the neutral position, and a contact arm
parts 15, 8| and 84 compose a contact arm unit
which is held lnterengaged with the arms 46 55 mounted within the housing, said contact arm
having openings of different sizes for the con
and 50 by and upon placement of the terminal"
arm so as to prevent electrical contact between
the plate 8| and the driving lugs 12 and 13. The
plate 55. The contact-making plate 8| is formed
at one end with a wide contact portion 85, ‘and
at its opposite end with a relatively narrow con
tact portion 86. The relatively wide portion 85
is in uninterrupted electrical contact with a sup
formable reception of the lugs, whereby part of
the device may be assembled in the correct posi
tions only.
3. A two-way electric switch comprising a
00 housing, an operating shaft journaled therein
and operable in either direction from a neutral
ply contact point 90 carried by the terminal plate.
Two additional contact points 9| and 92 are also . position, resilient means yieldably maintaining
said shaft in the neutral position, said shaft hav
carried by the terminal plate and they are ar
ranged in normally spaced relation with the 65 ing a pair of radially spaced lugs of different con
tours, a terminal plate having contact means
contact portion 88 but are engageable therewith
thereon, and a contact arm mounted within the
upon movement of the contact plate from neutral
housing, said contact arm having openings of
position to either of its extreme circuit closing
different sizes for the conformable reception of
positions. The supply lead 2| is connected to the
. the lugs, whereby part of the device may be as
contact ‘button 9|] and leads 24 and 25 are con
T0 sembled in the correct positions only.
, nected respectively to buttons 9| and 92.
4. An electric switch comprising a housing
terminal plate is held in place bylscrews 93
having a shaft receiving
which thread into bosses 94 formed on the hous
opening in its opposite end wall, a shaft in
ing. The pilot 54 of the control shaft journals
sertible from within the housing through the
in an aperture 95 in the terminal plate to give
75 opening forvjournal support inv the end wall,
the shaft having a retaining shoulder engaging
the inner face of the end wall, the protruding
end of the shaft serving as a means by which the
The following references are of record in the
shaft may be turned, a contact arm insertible
?le of this patent:
through the open end of the housing and mov- 5
ahle axially into interlocking arrangement with
the shaft for being turned thereby, and a terminal plate secured to the housing over the
contact arm and shaft to secure both parts
against displacement from the housing.
Lloyd ___________ __ Mar. 19, 1929
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