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Патент USA US2408884

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Oct. 8, 1946.
Filed Oct. 1, 19.42
4 Sheets-Sheet l‘
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BY <7? 9%
0d. 8, 1946.
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Filed Oct. 1, 1942'
4 Sheets-Sheet 2
‘FREDRlC/j I Hopi 1.
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@ct. 8, 1946.
' F. J. RODE
Filed Oct. 1, 1942
4 Sheets-Sheet 3
_ F164.
Qct- 8, 1946.
Filéd Oct. 1, 1942
4 Sheets-Sheet 4
He. 5.
Patented Oct. 8, 1946
stares rarest
Fredrich .l. Bode, Toledo, Ohio, assignor to E. W.
- Bliss Company, Brooldyn, N. Y, a corporation
of Delaware
Application October 1, 1942, Serial No. 460,42’?
2 Glaims.
(Cl. 277521)
This invention is directed to improvements in
solenoid operated valve mechanisms and the ge: ~
eral object thereof is to provide an improved ar
rangement of the elements of valve apparatuses
which are utilizable particularly in the machine
tool art for controlling ?uid pressure lines asso
invention, such disclosed structure constituting,
however, but one of various structural froms in
which the principle of the invention may be used.
In said annexed drawings:
Fig. 1 is a front elevation of the solenoid case
and the valve housing;
Fig. 2 is a side elevation of the same;
ciated with various ?uid operated mechanisms.
Fig. 3 is a section through the valve body;
Difficulties have been experienced heretofore
Fig, a is a view, partly in section, of a modiu
in the obtaining of a suitable solenoid valve mech
of the valve control mechanism; and
anism which will be dependable throughout pro
Fig. 5 is, partly in section
partly in eleva
tracted periods of use of the machine tool of
tion, a view of yet another modi?ed construction
which the valve mechanism comprises a part.
of the valve control mechanism.
One instance is the pneumatic operation of heavy
Referring to Figs. 1 and 2. the mechanism is
duty clutches incorporated in large metal working
presses. rI‘he operating pressures required in such 15 shown to comprise a case lEl enclosing a, solenoid
it having a coil l2. l3 designates a part of the
an environment are such that in many instances.
to which a rod it is connected by a
the usual type of solenoid operated valve does not
pin iii. Rod
has a reduced lower portion it
function with sufficient exactitude or promptness
which is received in a bore 18 of a pin H. vThe
to further the best obtainable performance of the
machine tool. In some instances a main pneu 20 upper portion of said bore i8 is wider so as to ac
commodate rod til therein. Pin ii is moreover
matically operated valve controlled by an aux~
shaped with two ?anged ends it which serve for
iliaiy solenoid opera-ted valve has been used.
supporting two loop shaped ends 25 of a lever 29
Various other auxiliary features have been added
which are journalled thereon. lever‘ 20 is with
to the usual valve mechanism to obtain the de
other end 2i iour'nalled on a shaft 22 mounted
sired machine performance. which, while proving 25 its
in a boss
of the casing 24 which encloses the
satisfactory, nevertheless have complicated the
entire valve mechanism.
For enclosing the bottom portion of rod l6 and
holding the parts assembled a sleeve 26 is pro
which is of the same diameter as rod por
simplify the construction of solenoid operated 30 vided,
tion it. A washer 2'? and a double locking nut
valves used in the above mentioned arts and to
28 screwed to the threaded bottom part ofrod
reduce to as few parts as possible all interme
portion it serve for fastening sleeve 28 to the
diate mechanisms between the solenoid and the
manufacture and the maintenance of an other
wise simple solenoid and simple valve mechanism.
t is the object of the present invention to
valve controlling the pressure line.
The valve- comprises
cylindrical casing 36
A further purpose is to provide a duplex valve 35
which has a threaded branch 29 for direct con
structure wherein the valve closing members,
nection by an air pipe 31 to the clutch (not
while arranged to be operated simultaneously or
shown) or other pneumatically operated mecha
in unison. ‘by a single solenoid mechanism, are
nism to be actuated by said valve mechanism.
relatively free to shift into a seating or valve
a valve chamber 32 is
closing position. This arrangement has the ad 40 On the top of cylinder
formed by cylindrical head 33 screwed to valve
vantage that it makes it easier to machine and
body Si} as at 35. Chamber 32 has a threaded
assemble the valve mechanism since freely ad
which connects a pipe 36 leading to a
justable valve members do not require the same
factory air line. llliounted between the end of
amount of precision in both instances as is re
and ash-oulder 3?‘ formed on body 38 is
45 head
quired .by the rigid members used heretofore.
a ring shaped valve seat 39 adapted to receive a
A still further object of the present invention
ball valve
which abuts but is not fastened to
the provision of a valve mechanism of the
of a'shaft till. Ribs 43 on the in“.
character referred to, and comprising vertically
side wall of
33 serve
guide means for
aligned valve parts which are alternately closed
the ball
The shaft £8 is slidingly received
and opened by a solenoid mechanism acting
in bushings lli mounted in a cylinder 32 suitably
upon spherically shaped metallic valve closing
members which are free to move under the in
?uence of gravity when the solenoid mechanism
is not energized.
To the accomplishment of the foregoing and
related ends, said invention, then, consists of
the means hereinafter fully described and partic—
ularly pointed out in the claims; the annexed
drawings and the following description setting
forth in detail certain structure embodying the 60
supported within the body 313 to form air pas
sages therebetween. Shaft All abuts second ball
valve til at its lower end. which valve is accom—
rho-dated in a valve chain-her to similar to the
?rst mentioned chamber
The valve seat 46
corresponds to seat
the enclosing cylinder 4'!
to head piece
The bottom clincle'r is, how
ever, provided with four openings Q3 equally
spaced around the circumference, and the'lbot
tom end of cylinder 41 has a central bore for re
ceiving a plunger 5!) with a head plate 5|. The
latter abuts ball valve 44 which is shown in the
open position. Plunger 58 is in direct contact
with a button 52 fastened to lever 20 by a pin
53. A ?nger 54 formed on said lever is adapted
to bear on a stop screw fastened to casing 24 at
58, thus limiting the rocking movement of lever
20 around pin 22.
The valve according to the invention is designed
to apply or interrupt pneumatic pressure to a
clutch mechanism or other pneumatically con
trolled mechanism; the solenoid is intended to
valve, while the upper end contacts valve member
16 when the valve is lifted into up position by
the actuation of rod 64. A cross-shaped mem
ber 18, mounted on a reduced portion 19 of rod 11
serves for guiding the same in its vertical move
ment in a chamber 80, while providing channels
for the air to pass through. The wall of cham
ber 80 at its upper end forms a valve seat for
ball 16. A threaded branch M of valve body 62
connects a pipe 82 leading to the factory air line,
while another threaded branch 83 of the valve
body connects chamber 80 over pipe 84 to the
pneumatically operated clutch or the like. Ex
haust holes 85 are provided for withdrawing air
operate the valve for the above indicated action.
Electrical energy to the solenoid coil may be
in case the clutch or other pneumatically oper
controlled either manually or automatically as
ated mechanism is to be disconnected.
desired by known means, which do not form a
The operation of this mechanism is similar to
part of the present invention and have, therefore,
the one illustrated in Figs. 1 to 3. When the
not been shown in the drawings.
clutch is to be applied air is admitted through
The device operates as follows: When it is in 20 pressure line 82 to line 84 leading to the clutch.
tended to apply the clutch mechanism, air from
To bring this about valve ‘II is lifted from the
the pressure line of the plant has to be admitted
down position into the up position, thereby un
from line 36 by unseating valve 38 and at the same
seating ball valve 16. To lift valve ‘II the sole
time pushing valve 44 onto its seat 46 allowing
noid is energized, the armature moved in upward
air to flow from the valve body 30 through line . .
3| leading to the clutch. To bring about the in- '
dicated movement of valves 44 and 38, pressure
has to be applied to plunger 58 by button 52. This
is done by energizing solenoid I2, causing the
direction, taking rod 64 along, which thereby lifts
plunger 14 and connecting member 69 for the
desired actuation of said hall.
For disconnecting the clutch the solenoid is
deenergized and the above described movement
armature I3 and rod I5 to be lifted, which in .30 of the valve members reversed thereby. As soon
as rod 64 returns to the position shown in Fig. 4
push button 52 against plunger 58.
and member 69 is free to descend ball 16 will be
If the clutch has to be disengaged the opposite
seated, thereby shutting off the supply of air
sequence of movements is performed. The sole
from the pressure line, while ball 1| will be un
noid is de-energized and, in consequence thereof,
seated to open the connection between line 84
turn makes lever 20 rock in upward direction and "
the armature is released from within the coil and *
takes up the position shown in Fig. 1. Rod I4, I6,
moves downward, pushing lever 28 down as well,
and the exhaust holes.
This returning of the
valves to starting position occurs under the in
?uence of gravity, with spring 15 acting as a
shock absorbing means.
button 52 moves away from plunger 50 until fin
ger 54 abuts on stop 55. If plunger 50 no longer "40 In Fig. 5 a further modi?cation is shown in
presses its head against ball 44, the latter will
which a pilot valve is arranged between the
drop under the in?uence of its weight down to
solenoid and the main valve, both valves being
the position shown in Fig. 3, while at the same
of similar construction.
time ball 38 is seated. Air may then be withdrawn
The main valve is enclosed in a casing 90 which
from the clutch through line 3|, chamber 45 and
has a square portion 9| for attachment to a de
the exhaust holes 48.
sired frame, as at 92. The valve enclosed in
Fig. 4 shows a somewhat modi?ed construction
casing 90 is ahnost identical with the one de
of the valve mechanism and the control therefor.
scribed with reference to Figs. 1 to 3; there is
In this embodiment of the invention the case en
only the difference in the connection between the
closing the solenoid is designated by 60. It is
two balls 38 and 44 by rod 48 being interrupted
supported by a frame 6! to which the valve body
in case the valve is in down position for release
62 is secured with a ?anged portion 63 by screws
which will be more fully explained below.
65. A rod 64 is in direct connection with the ar
From line 36 a by-pass line 93 is branched off
mature (not shown) and protrudes into a cir
at 94 which connects to a port 96 cf the pilot
cular opening 66 of frame 6I.
valve, generally designated by I88. The pilot
Accommodated within the vertical portion of
valve is housed in a casing IOI interposed be
the valve body 62 adjoining frame BI is a sleeve
tween the solenoid and the main valve and at
68 which slidably receives a member 69 that acts
tached to the machine frame at I02. The valve
as a connection between rod 64 and the valve
comprises an upper valve chamber I04 which re—
members. Member 68 has a ?anged top 18 di 60 ceives a ball valve I525 and a lower chamber I 85
rectly bearing on the lower spherical valve mem~
which encloses a ball valve I81. For connecting
ber ‘II and another ?ange 12 which in the down
the two balls a member I08 is provided which is
position shown in the drawings, bears on the
similar to the rod 11 with the cross-shaped arms
edge of the frame 6! and acts as a stop in the
‘I8, shown in Fig. 4 of the drawings. This mem
downward movement of, the valve. The lower 65 ber I08 is slidable within a bore I89 connecting
end of member 69 is threaded 0n the inside to
the two valve chambers. A passage III leads
receive a threaded bushing 13; into this bush
from bore I09 to a cylinder H8 formed in casing
ing a short plunger ‘I4 is ?tted that has one end
IOI, which cylinder is adapted to receive a piston
of a spring 15 fastened thereto while the other
head mounted on plunger 50. Passage III is
end of the spring abuts on top ‘III of member 69. 70 normally closed at the free end I 03. while an
The spring acts as a cushion in the movement of
exhaust opening I21 connects the lower valve
valve member ‘I I.
chamber I06 with the atmosphere.
The connection between the two valve members
The piston head on plunger 50 comprises a
‘II and 16 is made by a rod 11, the lower end of
plate II2 integrally formed with said plunger
which rests on ball ‘H in the down position of the 75 and a metal plate H3 with a packing II4 inter
posed between the two plates; the parts are fas
tened together by a bolt 1 H5.
The diameter of the piston head has to be
larger than that of the ball valve seats and
must be so chosen with respect to the latter that
the pressure exerted on the surface of the head
will suffice to lift ball valve 4d and rod All and
to overcome friction. Owing to the fact that
rod 40 does not contact ball 38 but has to trav
erse a certain space before arriving there, a mo
intake valve member fail to close direct connec
tion of the compressed air source to the exhaust
port takes place. This feature would, for ex
ample, prevent the operation of a machine tool
should the intake valve member not close at the
desired time.
No springs are associated with the valve mem
bers, the latter being operated in one direction
by solenoid actuation and in the opposite direc
10 tion by gravity and air pressure, thus effecting
the elimination of spring actuated valve mem
mentum will be gathered which will allow the
unseating of ball 38. The exact ratio of the
dimensions in question may be easily found by
bers and attendant operating difficulties. Should
intake valve part is assured, since its closing
movement is not dependent upon the solenoid.
Other modes of applying the principle of my
The solenoid is of known construction and
comprises a casing M8 on a supporting casting
H9. The coil is designated by IZE, the armature
by I2 I. A rod I22, whose bottom end is in direct
contact with the armature, is slidably received
in a plug I23 screwed into a metal sleeve i253
there be failure in the operation of the solenoid
itself for any reason, the prompt closing of the
invention may be employed instead of the one
explained, change being made as regards the
structure herein disclosed, provided the means
stated by any of the following claims or the
equivalent of such stated means be employed.
which encloses the armature I21. Screwed into
the upper portion of plug I23 is another plug l25
I therefore particularly point out and distinct
which holds the upper part of rod H2 and by a
claim as my invention:
?anged end caps the opening at the top of
1. A Valve mechanism adaptable for actuation
easing H8. The solenoid coil 12s is insulated 25 by a solenoid mechanism comprising a, valve cas
from the casing by disks I28 of rubber or other
ing; a pair of interconnected valve members in
insulating material.
said casing independently alignable and operated
The top end of rod H2 is screwed into a slid
by mechanical pressure in one direction and by
ing member H23 which abuts ball valve ill’? and
30 their own weight in the opposite direction; means
serves for moving the same to up position.
loosely interposed between said valve members
The operation of the valve mechanism is the
for transmitting force from one of said valve
following: If a clutch or other pneumatically
members to the other valve member; a plunger
‘operated mechanism is to be actuated the solenoid
reciprocable in said casing independently of said
is energized and the armature lifted thereby. At
members and receiving the weight of at least
the same time rod l22 is pushed upward and ball
one of said valve members, said plunger having
I61, by pressing member 568 against valve ball
an end adapted to be engaged by a moving mem
1M, effects unseating of the latter. This allows
ber, such as a solenoid armature, for movement
in one direction for actuating the valve members;
I I I into cylinder I 56 and to push the piston head
and means associated with said valve casing for
on plunger Eli to lift ball valve Ml. The clutch
limiting movement of the plunger in the opposite
will then become operative as described with re
direction for causing disconnection of said
spect to the valve mechanism shown in Figs. 1
plunger and moving member and for positioning
to 3.
one of said valve members in one of its valve
For declutching the solenoid is deenergized;
thereby the armature is released to take up the us .CA controlling positions.
2. A valve mechanism adaptable for actuation
position shown in Fig. 5, the controlled members
a solenoid mechanism comprising a valve cas
I22, I28, Ill? and 5,89, all taking a down position
ing; a pair of interconnected valve members in
as well. Air pressure is thus shut off from line
said casing independently alignable and oper
ill and cylinder H9, so that plunger ill) will
return to the down position actuated by gravity 50 ated by mechanical pressure in one direction and
by their own weight in the opposite direction;
and will cause the shutting off of air pressure on
means loosely interposed between said valve
the clutch and open the passage to the exhaust
members for transmitting force from one of said
holes. The cycle of operations is completed
valve members to the other valve member; a
It will be understood from the foregoing de 55 plunger reciprocable in said casing independently
of said valve members and receiving the Weight
scription that with a simple and light construc
of at least one of said valve members, said plunger
tion of parts owing to the novel features of my
having associated therewith a member extending
invention comprising the arrangement of dual
from one end thereof and a yieldable element
valve mechanism with independently alignable
air to flow from pressure line Q3 over passage
spherically shaped valves, a solenoid controlled 60 interposed between the last mentioned member
and the plunger, said extending member being
valve mechanism has been devised which func
engageable by a moving member, such as the
tions with desired precision and promptness and
armature of a solenoid, for causing the plunger
is, therefore, most dependable and satisfactory in
to move in one direction for actuating the valve
its results.
Another advantage of the novel device is the 65 members; and means associated with said valve
casing for limiting movement of the plunger in
greater safety for the operator when handling
the opposite direction for causing disconnection
the mechanism in the control of a machine tool.
of said extending member and moving member
By the vertical arrangement of the intake and
and for positioning one of said valve members
exhaust valve parts with spherical valve mem
in one of its valve controlling positions.
bers simultaneously operable as shown, a dis 70
tinct safety factor is inherent, in that should the
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