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Патент USA US2122038

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June 28, 1938.
F. E. LIVERANCE, JR
2,122,033
STARTER CONTROL
‘Filed Oct. 19, 1956
jmw ,
‘3 Sheets-Sheet 1
'June 28, 1938.
F. E. LIVERANCE. JR
2,122,038
STARTER CONTROL
Filed Oct. 19, 1936
QM.QM. oQ“1%
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0
3 Sheets-Sheet 2
June 28, 1938-
F. E; LIVERANCE. JR
2,122,038
STARTER CONTROL
Filed Oct. 19, 1936
k
5 Sheets-Sheet 3
‘2,122,038
Patented June 28, 1938
UNITED STATES PATENT OFFICE
2,122,038
STARTER CONTROL
Frank E. Livcrance, Jr., Grandville, Mich.
Application October 19, 1936, Serial No. 106,396
18 Claims. (Cl. 290-38)
This invention relates to engine starting, and ing motor circuit there is a second switch which
5
particularly to an engine starting control for
internal combustion engines in motor vehicles.
The engines in motor vehicles are almost uni
for convenience (though not necessarily) may be
coupled with the ignition switch for the engine
sure of the circuit energizing the motor which
turns over the engine until it starts and runs
in its inner switch closing position, and then on
turning the ignition key the starting motor would
which is mounted on the dash so that in start
versally started by an electric starting motor > ing the engine the starting button or member
would be pushed inwardly, it remaining locked
which is in a circuit including a battery, the clo
under its own power, after which there is an auto
10 matic disconnection of the driving connection be—
tween the starting motor and the engine.
One method of closing the starting motor cir
cuit is to use a starting pedal which is foot oper
ated, usually by the right foot of the driver leav
15 ing the left foot to actuate the clutch pedal to
disconnect the clutch. Another method is to use
the right foot to depress the accelerator pedal,
such depression of the accelerator pedal closing
the starting circuit until the engine has started,
whereupon through engine operation the start
ing motor electric circuit is broken and the start
immediately proceed to turn over the engine,
leaving the hands free for whatever manipula 10
tion of throttle and choke controls might be
needed, and also leaving the right foot free to
depress the accelerator pedal in order to get a
greater volume and control the volume of fuel
mixture going into the engine at starting, as is 15
very desirable.
It is a further object of the invention to pro
vide means such that as soon as the engine
starts the lock which has held the starter mem—
her in its switch closing position is automatically
released, the starter member returned to its
original position, the switch opening to stop the
starting motor. And simultaneously with such
ing motor thereupon stops. When a foot operated
starter pedal is used to close the starting motor
circuit, the foot pressure is continuous as release release of the lock a second lock comes into play
of the foot pressure breaks the electric circuit whereby the starting member for closing said
so that the starting motor does not operate. In ‘switch cannot be pressed inwardly during the
some cases the starting pedal which is foot oper
major portion of the time that the engine is
ated is replaced by a starting button on the dash running, thereby insuring against the gear clash
of the automobile which is pressed inward by the which frequently occurs because the driver or
9.0 hand of the operator and pressure maintained
the car, with present modern day engines which
thereon‘ until the engine has started, the same as
are almost noiseless at low speeds, many times
foot pressure is maintained on the starter pedal. thinks the engine has stopped when it has not,
This occupies one hand, the right hand if the and thereupon steps on the starter pedal or
starting button on the dash is to the right of the pushes in the starter button. With the present
steering wheel, or the left hand if it is to the left invention this cannot occur particularly at those 35
hand end of the dash. In such latter case the speeds of the engine when its noise of running is
handling of the starter button is awkward, and to low.
maintain the pressure with the left hand and at
The present invention is directed to a very
the same time to do such manipulation of the simple, economically produced, readily assembled
throttle and choke controls as may be desirable
and installed mechanism‘ for the attainment of 40
is not satisfactory; while if the right hand is the objects stated, together with numerous others
used to operate the starter, control of the choke not at this time speci?cally stated, but which will
and throttle is not possible. For these reasons appear upon understanding of the invention,
the foot operated starter pedal is used to the which is set forth in the following description.
much greater extent.
taken in connection with the accompanying draw
In the present invention the starting control ings, in which,
member is preferably mounted on the dash of the
Fig. 1 is a fragmentary side elevation illus
automobile, though it can be mounted quite as trating the mounting of the starter device on the
well at the floor or front of the driving compart
dash of an automobile and showing its connec
ment of the automobile and would work in the tion with the manifold of an engine for the
same manner. A means is provided whereby on
automatic release of the starter member lock
pressing inward on the starting member, a switch when the engine has started.
Fig. 2 is an enlarged elevation of the manually
in the electric circuit is closed and the starting
member is automatically locked vto hold said operated starter unit and the automatic means
for locking said starter unit in switch closing 55
55 switch in closed position. Preferably in the start
8, 192,088
position before the engine starts and in switch
open position after the engine has started.
Fig. 3 is a somewhat enlarged longitudinal
vertical section of another form of the starter
device designed as a practical unit for commercial
production and use.
Fig. 4 is an elevation thereof with parts broken
away because of lack of space.
Fig. 5 is a plan view of the outer end of the
device showing the manner of attachment to the
dash.
Fig. 6 is a transverse section substantially on
the plane of linel-l of Fig. 3, looking in the
15
direction indicated by the arrows.
Fig. '7 is a plan view with parts in section show
ing a slight modification in the manner in which
the device may be made and secured to the dash.
Fig. 8 is a transverse section on the plane of
line 8-4 of Fig. 7, looking in the direction indi
20 cated.
Fig. 9 is a fragmentary front elevation of the
mounting on the dash of the automobile.
Fig. 10 is a view looking down on the same, the
‘ dash being shown in section, and
25
Fig. 11 is a fragmentary vertical longitudinal
section, similar to Fig. 3, of a slightly modified
form of structure.
Like reference characters refer to like parts in
the ?gures of the drawings.
30
The engine I is an internal combustion engine
of a conventional type having an intake mani
fold 2 through which the fuel mixture passes
from the carbureter to the engine cylinders. The
electric starting motor is indicated at 3 having
35 on its shaft a pinion 4 which couples with a gear
on the ?y wheel of the engine to turn the engine
over in the operation of starting. The automo~
bile body has the usual cowl members 5 and 5a,
the windshield frame 6 at the rear part of the
40 portion 8a, and with a depending dash 1 below
the windshield as is usual.
In the present invention as shown in Figs. 1
and 2, a support is made from a single length
of flat bar material bent into the shape best
shown in Fig. 2. It includes a vertical section 3
which is adapted to be placed against the rear
side of the dash ‘I and secured thereto. From
the upper end of the section 8 a relatively long
horizontal section 8 is bent to extend forwardly.
terminating in a vertical arm III at its front end.
At the lower end of the section 8 a second and
shorter horizontal section II is bent at right
angles to extend forwardly and terminates in an
upwardly turned vertical arm l2 at its forward
end which extends toward the section 8. At the
underside of the horizontal section 8 a distance
in front of the arm I2 an angle member having a
horizontal leg I3 is spot welded or attached by
screws or otherwise permanently secured to the
60 section I2, from which leg i3 a vertical leg l4
extends downwardly in substantial parallelism to
the parts 8 and I2 and spaced a distance ahead of
arm l2.
A binding post I! is secured to and electrically
65 insulated from the leg l4 to which one wire i8
of the electric circuit is connected. A movable
spring switch member i1 is fastened at one end
to the binding post I! having its free end dis
posed over and normally spaced from a contact
70 member and binding post I8, which is likewise
secured to and electrically insulated from the leg
l4 near the upper end thereof. To the member
II a second wire l8 of the electric starting circuit
is connected.
78 The wire l8 leads to an electric battery and in
its length is preferably associated with a second
switch 20. As shown ‘in. Fig. 1, dotted lines 2|
are shown to indicate that either the wire it
may lead to a second switch 23 disposed in
the length thereof or go directly to the battery.
The first described structure is preferable. This
switch 20 interposed in the length of the wire l8
may for convenience be associated with and
operated by the same key as the ignition switch
for the engine. The wire it connects to the 10
battery 22 at one pole, the other pole of the
battery being connected to a suitable ground 23.
The wire I 8 leads to one pole of the electric
starting motor 3 and the other pole of the electric
motor is suitably grounded as indicated, the dia 15
grammatic indication being a wire 24 grounded
at 28.
A switch closure member to move the. switch
II to close the break between the wires i 8 and
i 8 is mounted for slidable movement through the
section 8 and the arm i2. This member com
prises a rod 28 which, at its upper side, has a
vertically extending rib or tongue 21 with vertical
shoulders 28 and 29 at the opposite ends of the
rib disposed above the rod 25. The rod 28 passes
through the dash ‘I and at its outer end has a
knob or button 30 attached thereto, for example,
by threading the same onto the outer end of
the rod 26. A coiled spring 3| is located around
the outer end of the rod 28 and bears at one end
against the inner side of the knob 30 and at its
other end against the bottom of the sheet metal
cup 33 which is continued in a skirt or escutcheon
24 as shown in Fig. 2. Therefore, normally under
the in?uence of the spring 3i the rod 28 is moved 35
to the left, in Fig. 2, so that the outer side of
the knob 30 lies substantially flush with the outer
end of the cup 33'. A pin 32, or any other equiva
lent stop may be used to limit the outward move
ment of the knob 38 and the rod 26 attached to it. 40
As shown in Fig. 2 the pin 32 passes through the
rod 26 and comes against the inner side of the
section 8 in the position of the parts which they
occupy when the engine is at rest.
On the upper side of the horizontal section 8 45
of the support a post 35 is located and perma
nently secured in any manner. A lever of in
verted T-form is pivotally mounted at the upper
end of the post 38 having a vertical arm 36 and
two oppositely extending horizontal arms 31 and
38 at its lower end. The arms 31 extends toward
the dash ‘I and at its free end has a bar 38 piv
otally connected. The bar passes downwardly
through a guide opening in the section 3 and at
its lower end is adapted to rest against the upper
end or surface of the rib 21 when the engine is
at rest. The other arm 38 has a like bar 48
pivotally connected to and depending therefrom
which likewise passes through a guide opening in
the section 9, with its lower end in the position 60
of the parts shown in Fig. 2 when the engine is
at rest being in a plane slightly above the upper
edge of the rib 21.
A rod 4| is pivotally connected at one end to
the upper end of the arm 36 and at its other end
has a secure connection to a ?exible diaphragm
42 which is sealed at the open side of a dia
phragm casing 43. At the center of the back of
the casing 43 a short tubular sleeve 44 is made
soldered or otherwise permanently secured to a 70
coupling sleeve 45. The sleeve 45 passes through
an opening made for it in the arm I U and is
threaded exteriorly so that a binding nut 48 may
securely clamp the diaphragm unit in place. A
tubing 41 is secured to the outer end of the 75
2,122,088
sleeve 45 by a nut 48 as shown, and at its for
ward end is connected with the manifold 2. A
coiled compression spring 49 is disposed between
the central part of the diaphragm 42 and the
bottom of the diaphragm casing 43.
'
With the parts in the position shown in Fig. 2,
as when the engine is not operating, the force of
spring 49 causes the bar 39 at its lower end to bear
with some pressure against the upper edge of the
"10 rib 21 adjacent the shoulder 28. When the en
gine is to be started the driver pushes inward on
the knob 39 compressing the spring 3|. .The in
ner end of the rod 29 engages the movable switch
member l1 and presses it against the contact at
15 I8. When this occurs the shoulder 28 will have
passed beyond the forward side or edge of the
bar 39 whereupon the spring 49 turns the T
shaped lever in a counter-clockwise direction and
the lower end of the bar 39 comes ‘behind the
shoulder at 29 thereby locking the parts in posi
tion to hold the switch member l‘I in circuit clos
ing position. With the preferred form of struc
ture the engine will then immediately start as
soon as the ignition key is turned to close igni
tion switch and simultaneously complete the cir
cuit through the electric motor. When the en
gine starts there is a falling of pressure within
the manifold 2 below atmospheric pressure which
results in a pressure upon the outer side of the
diaphragm 42, compressing the spring 49, mov
ing the rod 4| lengthwise in a forward direction
and turning the T-shaped lever‘ in a clockwise
direction. This elevates the bar 39 above the
shoulder 28 releasing the rod 26 which returns
to its initial position under the influence of
spring 3|. The clockwise movement of the T
shaped lever lifts the bar 39 to a position higher
than that shown in Fig. 2 and simultaneously
lowers the bar 49 to a‘ lower position than that
40 shown, or in front of the shoulder 29. As long as
the parts remain in such position it will be im
possible to manually move the switch closing
member 26 forward as the bar 49 will interpose
a stop against such movement when the shoulder
45 29 strikes against it. Therefore, after the engine
has started and is running under its own power,
closing the starting motor circuit is impossible so
long as the vacuum within the manifold 2 remains
sufficiently high. At times under heavy loads
50 and with wide open throttle the vacuum greatly
3
switch like or equivalent to the switch 29 in the
circuit to take care of those conditions where ir
respective of the turning over of the engine by
the starting motor the engine does not start.
If there was no second switch to be operated to
interrupt the starting motor circuit the starting
motor, under such conditions, would continue to
run until the battery was exhausted. With the
construction a control of the fuel volume going
to the engine at starting is readily obtained, the
driver not having to use a foot for the starter
pedal so that he can use the same upon the ac
celerator pedal. The locking in of the starting
member leaves the hands of the driver free for
other acts which may be desirable in starting 15
the engine such as shifting the choke or throttle
controls back and forth while the starting motor
is turning the engine over. It also obviates any
awkward positions of the driver which would be
required if one hand was to be used to hold the 20
starter switch in closed position and the other
was used to manipulate the throttle and choke
controls.
While the switch at 29 is indicated as built in
connection with the ignition switch of the engine, 25
it is quite evident that if desired the second
switch in the electric starting circuit may be
wholly independent of the ignition switch. The
second switch either independent of or joined in
connection with the ignition switch so as to be 30'
closed simultaneously with the closing of the ig
nition switch is a matter of choice, the operation
of the device being the same in both cases.
In Figs. 3 to 6, inclusive, a form of construction
is illustrated of a design more applicable for com
35
mercial production. The support is of a sub
stantially cylindrical form made, preferably, from
a single length of sheet metal which is shaped
to provide an upper half 59 and a lower half 5|,
each of semi-cylindrical form, and connected at 40
their rear ends by an integral section 52, where
by a connecting member 53 may be inserted be
tween the rear ends of the semi-cylindrical sec-
tions, 59 and 5|, and the part 53 and clamped in
place when the free end portions of parts 59 and 45
5| are brought together. Said free end portions
are connected with a ?anged substantially cup
like member 54 which, at its upper side, has an
extension bar 55 integral therewith, on which the
diaphragm casing is shown mounted in Fig. 2 50
on the arm I9. Tongues 56 extend from the free
case the spring 49 would move the parts to the . ends of the parts 59 and 5|, and are passed
diminishes or substantially disappears in which
55
60
65
70
75
position shown in Fig. 2 even with the engine
running and it would be possible under such con
dition of engine'operatlon to close the circuit.
At such times, however, there is no question in
the mind of the driver but that the engine is
running and there is little probability of any at
tempt to operate the starter knob 39 under such
conditions. When the engine is running at nor
mal speeds and under normal conditions or when
it is running at lower speed so that its operation
is almost silent then the lock against operating
the switch closing member is effective.
The construction described is very economical
to produce, and is very quickly and easily assem
bled and installed. In the operation of starting
an engine in a motor vehicle with the structure
described, the driver may push inward on the
knob 39, throw out the clutch, step on the ac
celerator pedal to depress it a desired‘ amount,
if an automatic choke is not used he can set the
choke at what appears to be the desired position
then turn the ignition key and the engine will
start. It is very desirable that there be a second
through openings in the parts 54 and, 55 being
bent over as shown in Figs. 3 and 4 to securely
connect the parts together and maintain the 55
housing support in cylindrical form.
The cup-like member 55 has an opening there
through surrounded by an outwardly extending
flange 51, through which opening the circuit
wires l6 and I9 pass. The wires are connected 60
with opposite contacts 58, screws being used to
secure the wires in electrical connection with the
contacts and secure the contacts to insulating
blocks 59, one of which is mounted on each of
the members 59 and 5| of the housing; so as to
diametrically oppose each other in accordance
with the construction shown in Fig. 3. Screws
69 with washers underneath the same secure the
insulating blocks to the parts 59 and 5| of the
housing support.
70
Intermediate the ends of the cylindrical hous
ing support thus provided, the metal is pressed
outwardly to make a continuous rib 6| thereby
providing a continuous annular groove within
the housing member. A ring 62 is mounted 75
4
9,129,088
therein, having an arm 53 extending upwardly
through an opening in the upper-member 50 of
the housing. Said arm 53 is equivalent to the
break in the electric circuit between said contacts
58. Upon the engine starting the pressure of air
against the outer side of the diaphragm causes
- supporting bracket 25 in the structure shown in
the inverted T-shaped lever to be swung in a
clockwise direction lifting the bar 39 and releas
ing the switch closing member to return to the
position shown in Fig. 3 under the force of spring
10 until stopped by the end of the body 61 engag
ing against the collar 66. The air pressure
Fig. 2, and at its upper end the inverted T-iever
having arms I5, 81 and 28 is pivotally mounted
in the same manner.
The bars 28 and 40 con
nected respectively to the ends of the arms 31
and 88 extend downwardly through guide sleeves
10 84 and openings made in the upper side of the
upper member 5|! of the housing, as shown.
The metal of the housing parts 50 and 5| is
also'formed with second outwardly pressed ribs
65 to provide a continuous annular groove within
15 the housing in which the peripheral portions of
a collar 68 are adapted to be seated and held._
Within the housing a switch closing member
is mounted for longitudinal movement. It in
cludes in its structure an intermediate body
20 member 61 of substantially cylindrical form and
with an exterior diameter slightly less than the
interior diameter of the cylindrical supporting
housing. A member having a head 58 of sub
stantially the same diameter as the body 81, and
25 with a reduced stem 59 is connected with one end
of the body 61 in any suitable manner, such as
by the screw connection shown, the collar 65
being located around the stem 69 and a coiled
compression spring 10 located around the stem
and bearing at its opposite ends against the col
lar and the inner end of the head 88 as shown.
The shoulder at the end of the body 61 where it
connects with the stem 59 engages against the
collar 58 when free to do so, the spring 10 being
35 under compression so as to normally move the
switch opening member to the left. 'In the po
sition of the parts shown in Fig.3, the bar 59 is
a short distance from such shoulder but when
the head 88 is engaged so as to move the sw-itch
40 closing member to the right (Fig. 3) the bar 39
at its lower end will move downwardly until its
lower end engages the stem 59 and the spring ‘Ill
cannot move the switch closing member in the
opposite direction until bar 39 has been lifted.
45 This secures the same result as when the bar 26
in the structure shown in Fig. 2 is moved to the
right and the lower end of the bar 39 drops into
position to be engaged by the shoulder 28.
The opposite end of the body 81 is reduced in
50 diameter, as indicated at 1|, providing a con
tinuous annular groove between the larger diam
eter part of the body and a member 13 of insu~
lating material which is connected to the smaller
diameter part ‘II. A screw ‘H is used for such
55 purpose having its head located‘ at the bottom
of a relatively deep recess in the member 13, and
thereafter a bridging contact 15 is screwed or
otherwise permanently secured at one end in the
recess with a disk of insulating material between
60 the head of the screw and the bridging member
as fully shown in Fig. 3.
‘
The operation and the results thereof are the
same with this structure as vthat shown in Figs.
1 and 2. The head 58 extends a distance through
65 the dash ‘I or an instrument plate carried by the
dash on which the device is mounted. Pressing
upon the head 68 compresses the spring ‘I0,
moves the body 51 to the right and if the engine
is at rest the spring 49 associated with the dia
70 phragm thereupon turns the inverted T-shaped
lever in a counterclockwise direction, and the
lower end of the bar 39 passes between the adja
cent end of the body 81 and the collar 86. When
this occurs the bridging contact 15 will have en
75 gaged both contacts 58 and closed the gap or
against the diaphragm will thereupon cause the 10
lower end of the bar 40 to enter the groove at 12
and the switch closing member cannot be moved
to closing position while the engine ‘is running,
so long as the air pressure at the outer side of
the diaphragm is su?icient to overcome the spring 15
49 and any inherent resistance of the diaphragm
itself. -
In assembling the parts which have been de
scribed, the spring 10 and collar 55 are put upon
the stem 69 and the stem and the body 61 are 20
then connected together by the screw connection
shown, though, if desired, a press ?t connection
would serve quite as well. The blocks 59 and
contacts 58 with the wires i8 and I9 attached
may be connected to the parts 50 and 5| of the 25
cylindrical housing, the wires l6 and I9 having
?rst been passed through the opening in the cup
member 54. Previous to this the ring 52 may
be slipped over the body 61; and, of course, the
bridging contact ‘I5 with the insulating member 30
‘I3 associated therewith would have previously
been attached to the reduced end ll of the body
61. The parts 50 and 5| at their free ends may
be spread apart suiliciently that the collar 66
will come opposite the grooves made by the press
35
ing outward of the ribs 65, and the arm 63 may
be passed through the opening made therefor in
the part 50 and thus locate the ring 62 opposite
the groove in which it is adapted to be seated.
The bar 53 is inserted in place and then the outer
free ends of the parts 5|! and 5| oi the housing
casing brought together and the attachment of
the cup member 54 made as described. The in
verted T-shaped member having the bars 39 and
40 connected thereto may then be pivotally con 45
nected to the outer end of the arm 63, and the
diaphragm casing and the vacuum tube 41 with
the connections therebetween secured to the end
of the supporting bar 55, the rod 4| having been
previously connected at one end to the diaphragm. 50
Then by pivotally connecting the oppositeend of
the rod 4| with the vertical arm 36 the assembly
is complete. The attaching member 52 and the
section 52 between the parts 50 and 5| are pro
vided with openings through which the head 58 55
may freely pass.
In Figs. 7 and 8 a slight modi?cation is shown.
In this case the cylindrical housing support will
be made of two parts similar to the parts 50 and
5| but without the integral connecting section 52 60
between them. They are designed in the struc
ture ‘shown in Fig. 7 to be received within a
collar 16 and soldered or otherwise permanently
connected therewith, the collar having oppositely
extending ears ‘I’! through which screws or other
i'astenings may be passed to mount the same
upon the dash I.
In Figs. 9, 10 and 11, at the outer ‘end of the
rotatable barrel 20a of the ignition switch 20 a
plate 18 is secured at one end and at its free end 70
portion is bent outwardly as shown, whereby
when the barrel is turned in a clockwise direction
by the key associated therewith to complete the
ignition circuit the free end portion of the plate
covers the exposed end of the head 68. When 75
5
2,122,088
the ignition switch is operated in a reverse direc
tion to stop the engine the head 68 is uncovered
as in Fig. 9.
With such a construction, as shown in Fig.
11, the arm 38 and the stop bar 40 connected
therewith may be eliminated and the insulating
block 13 connected directly to the body 61, which
body may be shortenedconsiderably in length,
thereby shortening the cylindrical housing mem
her.
In operation the locking in of the longitudinally
movable switch closing means in the cylindrical
housing support by the engagement of the rod 39
ahead of the shoulder at the left-hand end of the
engage with and close the switch, said rod having
a shoulder thereon, means automatically movable
into engagement with said shoulder when the
same has been moved to switch closing position,
and engine operatedmeans for withdrawing said
shoulder engaging means therefrom when the en
gine starts.
,
4. In combination, an engine, an electric start
ing motor therefor, an electric circuit‘ with a nor
mally open switch in the circuit for the starting 10
motor, a longitudinally movable rod adapted to
be manually operated‘to engage with and close
the switch, a locking member automatically
movable into engagement with the rod to hold
the same in switch closing position, and means
15 body 61 will occur in the same manner as pre
viously described. Engagement with the outer . operated through suction developed by the en
end of the head 68 to push said switch closing gine when it starts for withdrawing said locking
member to switch closing position cannot take \member from engagement with the rod to free
place unless the plate 18 occupies the position the same to open said switch.
20 shown in Fig. 9, the ignition circuit not being
5. In combination with an engine, an electric 20
completed. When the ignition circuit is com
starting motor therefor, a circuit with a nor
pleted by turning the barrel of the ignition switch mally open switch therein for the motor, a man
lock in a clockwise direction head 68 is covered. ually operable longitudinally movable rod mov
After the engine starts and the'parts assume able to engage with and close the switch, spring
25 the position shown in Fig. 11 the head 68 cannot
means tending to return the rod to initial posi
be engaged for operation of the movable switch
tion, a locking member, means on the rod with
closing member except on turning 011 the ignition
and stopping the engine. Accordingly there can
which said locking member automatically engages
when the rod is moved to switch closing position,
and a diaphragm combined with means connect
be no closure of the starting motor circuit while
25
30 the engine is running irrespective of the vacuum
ing the diaphragm with the locking member and 30
conditions in the engine manifold.
The structures illustrated in Figs. 3 to 6, in
clusive, and in Figs. 9, 10 and 11 are of a practi
cal commercial form. While the ring 62 has been
shown as a continuous‘ ring, it is quite evident
that it could be replaced by a semi-cylindrical
member at the lower end of the arm 63 the
ends of which would terminate at the edges of
the upper housing member 50. Various other
40 changes in minor detail may be resorted to
without departing from the invention. The sev
with means connecting the diaphragm with the
engine manifold to withdraw said locking mem
bcr when the engine has started to thereby re
lease said rod for return to initial position.
6. In combination with an internal combus 35
eral embodiments of the invention shown are
examples of the divergence in detail which’ may
take place in embodying the invention in opera
tive form. The claims accordingly which are
appended hereto de?ning the invention are not
to be limited other than required by their terms,
and the invention is to be considered compre
hensive of all forms of structure coming within
the scope of said claims.
I claim:
1. In combination, an engine, electric starting
motor therefor, electric circuit in which the mo
tor is included, and a switch in the circuit, mov
able means manually operable for closing the
switch, means for automatically locking said
movable means in switch closing position, and
engine operated means automatically unlocking
60
tion engine, an electric starting motor therefor,
an electric circuit and normally open switch in
the circuit, of a longitudinal movable manually
operable rod adapted to close the switch when
moved in one direction, means for moving the 40
rod in the opposite direction, a movable locking
bar, means on the rod for engagement by said
locking bar to hold the rod in switch closing posi
tion when the same is moved thereto, a lever to
one arm of which the locking bar is connected,
a diaphragm casing and a ?exible diaphragm at
one side thereof, a rod connecting the diaphragm
with another arm of the lever, spring means act
ing on the diaphragm and the last mentioned rod
for moving the locking bar into locking engage 50
ment with said switch closing rod when the latter
is moved to close the switch, and a tubular con
nection between said diaphragm casing and the
engine manifold, as and for the purposes de
scribed.
tion engine, an electric starting motor therefor,
an electric circuit with a normally open switch
said switch closing means to free the same and
therein for the starting motor, of manually mov
thereby open the switch when the engine starts.
2. In combination with an engine, electric
able means for closing said switch, means auto
starting motor therefor, electric circuit for the
starting motor and a normally open switch in
said circuit, of manually operable movable means
for engaging with the switch to close the circuit,
means for automatically locking said movable
means in switch closing position and means op
erated through vacuum developed by the engine
for automatically unlocking and releasing said
switch closing means when the engine starts.
3. In combination, an engine, a starting motor
for the engine, an electric circuit for the start
ing motor and a normally open switch in said
circuit, a longitudinally and manually operable
movably mounted rod adapted to be moved to
55
‘7. In combination with an internal combus
60
matically operable when the switch is closed for
holding said manually movable means in switch
closing position, engine operated means for with
drawing said holding means when the engine
starts, and means operable by said engine oper 65
ated means and movable thereby into position to
stop movement of said manually operable switch
closing means to switch closing position after the
engine has started.
8. In combination with an internal combus 70
tion engine, an electric starting motor therefor
and an electric circuit with a normally open
switch therein for the motor, of ‘a movably
mounted manually operable rod adapted to be
moved in one direction to close the switch, said 75
6
2,122,035
rod having spaced apart shoulders thereon, a
locking bar, means to automatically move the
same into relation with one oi said shoulders to
hold the rod in switch closing position, engine
operated means for withdrawing said locking bar
when the engine starts to release the switch oper
ating rod and a second bar movable by said en
gine operated means simultaneously with the re
leasing movement oi the locking bar into a rela~
10 tive position with respect to the other of said
shoulders to serve as a stop against movement of
said rod to switch closing position when the en
glue is running.
9. In combination with an internal combus
15 tion engine, electric starting motor therefor, elec
tric circuit and a normally open switch in the cir
cuit for the starting motor, oi’ a support on which
the switch is carried, a manually operable longi
tudinally movable rod mounted on the support
20 and adapted when moved in one direction to close
the switch, a lever of substantially T-shape piv
otally mounted on and carried by the support.
said lever having two arms extending in oppo
site directions, bars attached to said arms spaced
25 from each other and extending toward said rod,
spring means tending to rock the T-shaped lever
in one direction, means on the switch closing rod
with which one 01' said bars cooperates ‘when the
rod is moved to switch closing position to lock the
30 rod in position _to hold the switch closed, engine
operated means for rocking the T-shaped lever
in the opposite direction to release said bar from
the switch closing rod and to move the other bar
into relation with said rod when the engine starts,
35 and means on said rod adapted to engage with
the second of said bars to stop movement of the
rod to close the switch.
10. In combination with an internal combus
tion engine, electric starting motor therefor, and
of said bars under the in?uence of said engine
operated means.
13. In combination with an internal combus
tion engine, electric starting motor therefor and
an electric circuit with a normally open switch
therein for the motor, of manually operable
means for closing the switch, means for auto
maticaily holding said manually operable means
in switch closing position when moved thereto,
engine operated means for releasing said holding 10
means when the engine starts, and means to pre- '
vent closing of the switch after the engine has
started.
14. In combination with an internal combus
tion engine, an electric starting motor therefor, 15
and an electric circuit with a normally open
switch therein for the motor, of manually mov
able means for closing the switch when moved
in one direction, means for returning said man
ually operable means to initial position when 20
free to do so, means for holding said manually
operable member in switch closing position when
the same is moved to said position, and air pres
sure means operable through suction developed
by the engine when it starts for releasingsaid 26
holding means to permit the switch closing
member to be returned to initial position.
15. A switch and switch control means therefor
adapted. to be interposed in an engine starting
motor circuit comprising, a support, a switch hav 30
ing spaced contacts carried by the support, a
manually movable member for electrically con~
necting said contacts mounted for movement on
said support, locking means carried by the sup
port combined with means for automatically
moving the same into engagement with said man
ually movable member when the same is moved
to electrically close the space between said con
therein for the motor, of a longitudinally mov
able and manualLv operable rod for closing the
tacts to thereby hold said manually movable
member in the position to which moved, and 40
means adapted to be operated by an engine for
moving said locking means to inoperative posi
switch on movement of the rod in one direction,
tion, as and for the purposes specified.
40 an electric circuit with a normally open switch
said rod being enlarged between its ends and
45 having a shoulder, a stop bar having one end
thereof positioned opposite said enlargement on
the rod when the same is in switch closing posi
tion and positioned between said shoulder and
the switch closed by the rod when said rod is in
switch open position, and engine operated means
for moving said bar into stopping relation with
respect to said shoulder when the engine starts
to thereby prevent movement of the rod to close
the switch after the engine is started.
11. In combination with an internal combus
tion engine, an electric. starting motor therefor
and an electric circuit with a normally open
switch therein for the motor, of a longitudinally
movable and manually operable rod for closing
60 the switch on movement of the rod in one direc
tion, said rod being enlarged between its ends
thereby‘ providing two spaced apart shoulders,
one at each end of the enlargement, two bars
located at right angles to the rod, and engine
operating means for moving said bar simulta
neously in opposite directions when the engine
starts, one of said bars being located against the
enlargement on the rod adjacent one of said
shoulders when the engine is at rest and the
other being located opposite the rod beyond the
shoulder at the opposite end of said enlargement.
12. A construction containing the elements in
combination de?ned in claim 11, combined with
yielding means acting upon said bars to move
the same in directions opposite to the movement
‘
16. A switch adapted to be located in an elec
tric motor engine starting circuit and manual 45
closing means therefor comprising, a cylindrical
housing, spaced apart contacts adapted to be
connected with the circuit carried by the housing,
a manually movable member mounted substan
tially within the housing and having one end
projecting therefrom for manual engagement, a
contact bridging member carried by said manual
ly movable member adapted to electrically join
the contacts when said manually movable mem
ber is moved in one direction, spring means nor
mally moving the manually movable member in
the opposite direction, an arm connected with
said cylinder, a diaphragm casing having 9. dia
phragm therein mounted on the arm, a tube
connected with the diaphragm casing adapted to
be connected with an internal combustion engine
manifold, locking means carried on said housing
in association with said manually movable mem
ber, said manually movable member having
means with which said locking means-is adapted
to engage when the manually movable member
is moved to contact bridging position, and means
connecting the locking member with said dia
phragm whereby air pressure against the dia
phragm moves the locking means to release said 70
manually movable member.
17. A structure of the class described adapted
for use with an internal combustion engine and
an electric starting motor and circuit therefor
comprising, an elongated tubular support, spaced 75
2,199,088
contacts carried within and insulated from said
support near one end of the support and adapted
to be interposed in said motor circuit, a manually
operable member mounted for longitudinal move
ments in said tubular support, a bridging contact
carried by said manually operable member to
electrically connect said contacts, spring means
for normally separating the bridging contact from
said ?rst mentioned contacts, a closure for the
10 inner end of said tubular support having an arm
extending therefrom, a diaphragm casing with
a diaphragm at one side thereof mounted on said
arm, a tube connected with the diaphragm casing
adapted to be connected with an internal com
bustion engine manifold, a bracket mounted on
and carried by said tubular support, a lever piv
otally mounted thereof, an arm connecting one
end of the lever with said diaphragm, a locking
rod connected‘ to the other end of the lever and
extending through said tubular support, said
longitudinally movable member being reduced in
cross section at a part thereof whereby on move
ment of the manually operable member to con
tact bridging position, said locking rod may move
7
inwardly through said tubular support into posi
tion to engage with said manually operable mem
ber and hold it in contact bridging position.
18. A device of the class described comprising,
a support, spaced apart switch contacts thereon,
a manually operable longitudinally movable
member mounted on the support, means for elec
trically closing the switch contacts operable by
movement of the manually operable member in
one direction, spring means for moving the man 10
ually operable member in the opposite direction,
locking means mounted on the support to engage
with the manually movable member to hold the
same in contact closing position, a ‘diaphragm
housing with a ?exible diaphragm at one side 15
thereof, means connected with the diaphragm
housing and adapted for use to lower the pres
sure within the housing below atmospheric pres
sure, and means connecting the diaphragm with
the locking means to disengage it from said man 20
ually operable member upon predetermined re
duction of pressure within the diaphragm casing.
FRANK E. LIVERANCE, Ja.
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