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Патент USA US2412532

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Dec. 10, 1946.
-A. |_. PARKER ET AL
I
ENGINE
PRIMER
'
Filed Nov. 27, 1944
.
2,412,532
-
Patented Dec. 10, 1946:
2,412,532‘
UNITED STATES PATENT OFFICE
land, Ohio, assigno'rs' t0_The‘ Parker Appliance
Company, Cleveland, Ohio; a' corporation of
Application November 27, 1944, ‘Serial No. 565240
7-Claims;
(C1. 1'03—2’)
l
2
The present invention relates generally to
ticular reference to Figure 1, the primer broadly
primers for internal combustion engines ortlie
like; arranged to feed'a' priming charge to one or
includes a pump cylinder Ill,‘ a piston II with an
enlarged head portion I2 mounted‘ therein for
rotation and/or reciprocation by means of an‘o'p
erating handle I3 secured to an end of the piston
more of a series of such engines through a se
lector valve for opening and‘ closing a plurality
oppositetheenlarged head portion I2, an inlet
of‘ outlets.
An object of the invention is to provide inan
check valve I4; a selector valve I5 detachably con
nected to the piston head l2; and novel means for
engine'primer of the type above referred'tda
novel selector valve indexing and locking means;
indexing, locking and indicating each respective
in combination with a novel‘indicat'ing’ means for _
each position of the selector valve with respect‘to‘
any one‘o'f ‘a plurality of outlet ports;
A further object is to provide in an. engine
primer including a selector valve arranged’ with
a plurality of outlets and a piston adapted to de
tachably connect therewith; novel valve indexing
means and locking means whereby the primer
piston is locked against reciprocatingmovement
position‘ of the selectorv valve I5'adjacent to the
operating handle I 3 ' and‘ cooperating‘ therewith;
The“ pump cylinder I0‘ is ?ared outwardly atv
its‘lower end to provide an enlarged chamber I5.
The‘ chamber It‘ contains a threaded aperture‘
in' the‘side wall for receiving the inlet check valve
M, which may be a self-contained nipple in which
is‘mounted a‘ ball I‘! and a spring I8: Thus the
primer'can readily be mounted on an instrument
panel I9 having a hole of a diameter but slightly
when the selector valve is “off” or being» turned
from one outlet‘ to another, andwhereby the pis 20 larger‘ than the‘ enlarged chamber I6‘, when the
nipple‘ is temporarily removed.
Within the enlarged chamber l 6 is the selector
valve» I5; a spring 20, a spring abutment plate 21
ton is detachable therefrom for reciprocat-ion'in
dependently of the valve when the selector valve
is “on.”
Still a further object is to provide in an engine
and an outlet spring ball check valve 22. Valve
primer, 2. novel: means, whereby each respective
position of ‘a selector valve is positively indicated
25 I5 has a: seating end 24 preferably of graphitic
material bonded thereto. The valve I5 and end
to the operator.
24 are provided with a central passage 25‘there
These and ‘other objects I- attain by the cone"
struction in the accompanying drawing, wherein
one embodiment of the invention is-shownfor
through, and a radially extending passage 26
adjacent the seating surface of the valve endv 24.
The‘ passage 26vis adapted to be brought into or
out of alignment with any one of a plurality'of'
outlet‘ ports 28 in a head 36 secured as by bolts
the purpose of illustration, and'wherein:
Figure 1 is a longitudinal» cross section view
3| inthe rim of cylinder In by selectively rotating
of a- primer embodying the invention;
the valve unit I5. The coupling between the end
of the cylinder 50 and head" 30 may be made
?uid-tight by any suitable device,.such as gasket
Figure 2 is a top planv view in elevation of'the
assembled ‘novel indexing, locking and- indicating
means of the primer;v
Figure 3 is_ a transverse cross section’view taken’
32.
'
Rotation of the valve unit I5, which may be
any suitable'typeof rotary valve is accomplished
Figure 4 is a transverse cross section view-I taken
along the line ll—4 of Figure 1; showing- the de 40 by rotation'of the handle I3 secured to the piston
I I ‘opposite'to'the enlarged piston head I2, which
tachable connection between the’ selector valve
on the line 3-3 of Figure l;
V
‘
detachably connects with the other end 33 of
andthe primer piston;
the valve’ I5. This‘en'd 330i the selector valve
I5 is non-circular in cross-section; and is'engage
along the line 5—5'of Figure 1;
Figure 6 is _a top’ plan view of- a-novel valve 45 able in a transverse groove of similar cross
section in piston head I2. The spring abutment
abutment plate; such as maybe used‘ with our
Figure 5 is a transverse cross section view taken
device;
Y
I
plate 21' is adapted to engage with an annular
V
shoulder 3t‘ at the upper end of the chamber l6,
Figure-7 is a plan View of the inner side of the
novel index plate adapted-I to receive the valve
position indicator ring;
_
and is apertured so as to ?t over the non-circular
50 end33 of‘the'selector valve I5, and to provide for ‘
Figure 8' is a cross section view taken along
the’ line 8-—8 of Figure 7;
Figure 9'is‘acros‘s section view showing the'pisl
ton disconnectedirom the‘ select'or‘valv‘e.
Referring to the drawing and ?rst with par; 65
passage‘of ?uid‘int'o the cylinder ID, as shown in _
Figure'G. Thus, when the piston is pulled up
ward, as shown in Figure 9,‘ the‘ spring 20 expands
and causes the abutment plate 21 to engage with
the shoulder 34, whereby the expanding action
2,412,532
3
of the spring 23 likewise moves the valve I5 and
presses the seat 24 against a ?at seating surface
on the cap or head 36. Obviously, the spring 20
should have greater tension than the opposing
suction forces created in the cylinder during out
ward movement of the piston II, so that the
selector valve unit I5 will remain seated on the
seating surface of head 38. The piston head I2
has an annular groove in which is mounted a
4
adapted to register with any one of the spaces
46 between one of the ?anged segments 41, where
by no portion of the indicator ring 58 is visible,
while at the other spaces 46 portions of the
indicator ring 50 are clearly visible. Thus, as
suming that a red plastic index ring 53 is being
used, and the operator sees the red plastic mate
rial at all the spaces 46, he knows that the cor
responding outlet ports 28 are off, and likewise
sealing ring 35, and also has on its upper face a 10 whenever he sees no red plastic material at one
of the spaces 46 he knows that the corresponding
cushioning means, such as a rubber ring 36, see
outlet port is open, and ?uid is passing to that
Figure 9.
i
particular engine when the piston Ii is recipro
The piston II opposite to its enlarged head
cated.
portion I2 is guided and operated by means
Thus, for example, when the handle I3 is in a
mounted on the upper extremity of the cylinder 15
45° position with its lug 40 engaged in one of the
ID, which cylinder is provided with a mounting
recesses 48 on the inner side of one of the seg
?ange 38. The ?ange 38, as shown in Figure 1,
ments 41, the ports 28 are all closed. In this posi
is adapted to be secured to the instrument panel
tion the ?anged segments 41 prevent reciproca
I9, and to support and mount an indexing ring
39 adapted to cooperate with a radial lug 49 20 tion of the piston II, and the selector valve unit
I5 is held in off position wherein the radial pas
carried by a skirt portion M on handle I3, as
sage 26 is out of communication with any of the
hereinafter to be described.
outlet ports 28. The spring 28 holds the selector
Extending from the ?ange 38 is a nipple 42
valve unit I5 seated on the ?at inner seat surface
counterbored, for example to de?ne a shoulder
43 against which seats the end face of a piston 25 of the cap or head 38, and also transmits pres
sure through the piston II to handle I3, whereby
guide sleeve 44, and which is engageable with
the lug 40 is yieldably forced and held in engage
the cushion ring 36 on the enlarged head of the
ment with the bottom wall of the recess 48, with
piston I I, to thereby limit the outward movement
which it is aligned. As the gap 5| of the red plas
thereof.
_
tic indicator ring 50 .turns with the lug 48, the
concentrically positioned around the sleeve 44
ring gap 5I will be disposed in a 45° position un
On the mounting ?ange 38 is mounted the novel
der one of the ?anged segments 41 and the solid
selector valve indexing ring 39, the lower lock
portions of the red plastic indicator ring are
ing skirt portion 4| of the handle £3 with the
visible at all four spaces 46. This indicates that
radial locking lug 48 adapted to cooperate with
the indexing ring for locking the piston II, and 35 all of the outlet ports are closed.
the novel indicating ring 58, each as best shown
Operation
in Figures 2, 3, 7 and 8. The indexing member
In order to operate the primer to pump fuel
comprises the plate 39 centrally formed as by
from the selected upper outlet port 28, as shown
counter boring or the like to provide a flange.
in Figure l, the handle I3 is turned until the ar
The continuity of this ?ange is interrupted by
row 55 marked thereon is vertical and the lug
equal spaces 46, so as to de?ne segments 41, see
48 brought into alignment with the selected space
Figure 7, which segments on the inner side adja
46 corresponding to the upper outlet 28. As the
cent the mounting ?ange are pressed in or par
handle I3 is thus turned lug 48 disengages from
tially cut out to provide recesses 48 for cooper
the recess 48 and causes the piston II to slightly
ation with the lug 48 carried by the skirt 4| of
compress the spring 20, so that as soon as the lug
handle I3 and thus yieldably retain the handle
40 comes into alignment with the space 46 corre
in an off position, whereby no ?uid can be passed
sponding to the selected upper outlet 28, the ban
from the inlet valve I4 to any of the outlet ports
dle I3 may be released and the spring 29 will
28 regardless of the pressure at the inlet, and
whereby the piston II is locked against recipro 50 force the piston I I and handle I3 outward, there
bydisengaging the lug 40 from a ?anged segment
cation. The side walls 49 of the recesses 48,
41 through the space 46.
as shown in Figure 8, are preferably inclined
Because of the detachable tongue and groove
or rounded, so that the handle I3 need only to
connection between the piston head I2 and the
be rotated to disengage the lug 40 therefrom.
Otherwise if the side walls were square and sharp , end 33 of the selector valve I5 rotation of the
handle I3 to the aforesaid free position likewise
it would be necessary to depress the handle I3
rotates the valve, to thereby bring the radial pas
before turning it. ,,
sage 26 into alignment with the selected vupper
The mounting ?ange 38 and the flanged seg
outlet port 28. I When the handle I3 reaches its
ments 41 of the indexing plate 39 de?ne between
point of outward movement, as above described,
them an annular countersunk bore 45, see Figure
the tongue and groove'connection between the
8, in which is disposed a novel indicator means,
piston head I2 and the valve end 33 completely
such as a split ring 58, preferably made of col
releases, slightly before the lug 40 rises com
ored plastic, painted metallic material or the like.
pletely out of the con?nes of space 46 between
The outer diameter of the indicator ring 56 is
two of the ?ange segments 41.
normally larger than the inner bore 45 of the
Now, as the lug 40 is completely released from
indexing ring or plate 39. Thus, when the split
the ?anged segments 41, .the handle I3 may be
ring 56 is placed within the indexing ring 39,
pulled outward and reciprocated, if desired, to
it must be contracted, and therefore it yieldably
draw fuel into the cylinder I0. During this out
engages with the inner walls of the index ring
39. Also, when the indicator ring 58 is thus con 70 ward stroke of the piston I I, the spring 20 yield
ably holds the valve in any predetermined set
?ned within the bore 45 of the index ring 39,
position, such as above described, and also the red
there remains a gap 5| therein, see Figures 2 and
indicator ring 50 will remain in any such prede
3, which is equal to the spaces between each of
termined set position because of its frictional
the index rings ?anged segments 41. Accord
ingly, the indicator ring. 58 has one portion 75 engagement with the index plate 39. Therefore
gangsta
51
6:
after the lug 40- has ‘been raisedlfro'm the-‘con?nes
of anyl‘selected space“, it is immaterialwhether
piston, ~a~ lugl- on saidv handle, ' an‘ ‘indexT- member
adjacent said handle having‘ a pluralityiofl op I‘
ings therein corresponding to each o-ffsaid' outlets,v
the handle [3 and ‘piston H are rotated or not.
Following this operation and positioning of the
handle, the gap 5! in the indicator ring 50 will be
opposite the selected'upper space 46, as shown in
Figure 2, and the remainder: of-the red indicator
ring 50 can be seen in all of the spaces'1ll6'except
the selected one, where the gap 5] in the ring-5B
said lug-being adapted to be aligned
on’eiof
said openings in the index member when‘jthel
handle is rotated, to thereby correspondingly‘
shift said valve into alignment with one ofi said
outlets known to correspond with the selected
opening in said index member, and yieldable
exists.v Thus, this indicates that a port 287Pcorre~ 10 means mounted around said valve adaptedfto'
sponding to theselected space 46‘ is open‘. ,
thrust said lug'upward from said index? member,
Obviously, when the piston H is pulled- out-'
while holding’ said valve ?xed in" its selected
position to provide for the pumping operation
wardly the suction unseats the inlet check-"valve
of said ‘piston independently of the said valve.‘
l4 and the cylinder I B ?lls up with ?uid; and
when the piston isipushed inwardly the outlet 15
3. In an engine primer including a pump with
a piston anda selector valve adapted to'cont'rol
check valve 22 opens, and the ?uid in the cylinder
I0 is forced out'through the selected upper port
a plurality of outlets, means’ for operating said
28.
piston detachably connectable to said valve so
as-to-‘selectivelyshift said valve during one posii’
When it is desired to turn the primer off, the
handle’ I3‘ is turned so' that lug 4U aligns with 20 tion of the piston to align with one‘ or- nonelof
space 48 and the gap 5I'in the indicator ring 50.
said outlets upon rotation of said means-and
means associated with said ?rst-named means
With the lug 40 in this position, the handle I3 is
adapted to provide for a predetermined rotation
then forced inwardly, and the groove in piston
of said valve for the selection of a desired outlet
head I2 engages with the non-circular end 33 of
during operation of the piston or adapted to lock
selector valve l5. Rotation, if now imparted to
said piston against operation upon a predeter
the handle [3, approximately 45° in either direc
mined rotation of said valve out of alignment
tion, will turn the selector valve l5 to an off posi
tion, while correspondingly rotating the indicator
with any of said outlets.
ring 50 and the lug 40 again becomes engaged in
4. In an engine primer including a pump with
a piston and a selector valve adapted to control
a plurality of outlets, means for operating said
one of the recesses 48 behind one of the segments
of the ?ange 45, to thereby yieldably hold the
I
piston detachably connectable to said valve so
as to'selectively shift said valve during one posi
valve unit H5 in an oiT position and lock the pis
ton II against reciprocation.
While the present invention has been described
tion of the piston to align with one or none of
in connection with only one form of device, such 35 said outlets upon rotation of said means, means
associated with said ?rst-named means adapted
as the engine primer illustrated in the accom
to provide for a predetermined rotation of said
panying drawing, it is to be understood that it
valve for the selection of a desired outlet during
may also have utility for use With other devices
operation of the piston or adapted to lock said
for dispensing ?uid or the like. Accordingly, it is
to be understood that as various other modi?ca 40 piston against operation upon a predetermined
rotation of said valve out of alignment with any
tions and uses for our invention may suggest
of said outlets, and means mounted between said
themselves, we do not wish to be limited to the
speci?c apparatus disclosed, but desire the ap
?rst named means, and said second named means
pended claims to be construed as broadly as per
missible in view of the prior art.
45 tive of the on and o? positions of said selector
We claim:
adapted to provide visible indications representa
valve with respect to- said outlets.
5. In an engine primer including a cylinder
having a reciprocating piston therein capable of
free rotation and a selector valve adapted to open
-
1. In a liquid dispensing device comprising a
pump having a reciprocating piston, a valve
associated with said pump for controlling the
discharge of ?uid from the pump through a plu
50 and close a plurality of outlets, a handle for
rality of outlets, means whereby said valve and
said piston may be coupled together when said
piston is at the end of its compression stroke, so
that rotation of the piston will shift said valve
operating said piston within said cylinder, said
handle having a skirt portion with a lug thereon,
said piston having an enlarged head detachably
connectable with said valve so as to provide for
to different positions With respect to said outlets; r
the combination of a handle adapted to rotate
said piston, a lug on said handle, and an index
member adjacent said handle having a plurality
rotation thereof to selected position with respect
with one of said openings in the index member
when the handle is rotated, to thereby corre
spondingly shift said valve into alignment, with
one of said outlets known to correspond with the
plurality of spaced segments to thereby de?ne
pump having a reciprocating piston, a valve
associated with said pump for controlling the
discharge of ?uid from the pump through a plu
the handle when the outlets are closed by said
piston is at the end of its compression stroke, so
that rotation of the piston will shift said valve to
di?erent positions with respect to said outlets; the
combination of a handle adapted to rotate said 75
free rotation and a selector valve adapted to
open and close a plurality of outlets, a handle for
to said outlets upon rotation of said piston, an
annulus of larger internal diameter than the
exterior of said skirt portion having an inwardly
projecting ?ange mounted on the upper end of
of openings therein ‘corresponding to each of
said outlets, said lug being adapted to be aligned 60 said cylinder, said ?ange being divided into a
spaces therebetween corresponding in number
and position to said valve controlled outlets, and
a plurality of depressions centrally disposed on’
selected opening in said index member.
65 the inner side of each of said segments adapted
2. In a liquid dispensing device comprising a
to be engaged by the lug on said skirt portion of
valve to thereby lock said piston against recip
rocation in said cylinder.
6. In an engine primer including a cylinder
rality of outlets, means whereby said valve and 70
having a reciprocating piston therein capable of
said piston may be coupled together when said
operating said piston within said cylinder, said
handle having a skirt portion with a lug thereon,
2,412,532
8
said piston having an enlarged head detachably
when 50 mounted having a gap at its split portion
connectable with said valve so as to provide for
rotation thereof to selected positions with respect
adapted to conform to the width of the spaces
between each of said segments, and said lug on
said skirt portion of the handle, whereby upon
rotation of said handle and said piston to shift
said valve the lug likewise rotates said ring to
to said outlets upon rotation of said piston, an
annulus of larger internal diameter than the
exterior or said skirt portion having an inwardly
indicate the open or closed condition of the said
projecting ?ange mounted on the upper end of
said cylinder, said ?ange being divided into a
valve controlled outlets.
7. In an engine primer of the class described
plurality of spaced segments to thereby de?ne
spaces therebetween corresponding in number and 10 having a cylinder, a reciprocating piston therein,
a piston locking means carried by the piston, a
position to said valve controlled outlets, a plu
selector valve adapted to control the discharge
rality of depressions centrally disposed on the
of ?uid from the cylinder, a ?xed indexing mem
inner side of each of said segments adapted to
ber for said valve, locking means associated with
be engaged by the lug on said skirt portion of
the handle when the outlets are closed by said 15 said indexing member for engagement with the
valve to thereby lock said piston against recipro
locking means carried by said primer piston, and
cation in said cylinder, and a split ring of yield
able material and contrasting color with respect
to said annulus in frictional egagement within the
means mounted in said indexing member adapted
to indicate the on and off positions of said valve.
bore of said annulus and concentrically positioned 20
around said skirt portion of said handle, said ring
ARTHUR L. PARKER.
JOSEPH F. MELICHAR.
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