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Патент USA US3053511

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Sept. 11, 1962
R. P. DUMM
3,053,498
CLUTCH HAND WHEEL FOR A SOFT SEAT VALVE
Filed Dec. 12, 1960
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2 Sheets-Sheet 1
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Sept. 11, 1962
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I.
R. P. DUMM
3,053,498
CLUTCH HAND WHEEL FOR A SOFT SEAT VALVE
Filed Dec. 12, 1960
2 Sheets-Sheet 2
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United States Patent 0 M
3,053,498
Patented Sept. 11, 1962
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3,053,498
Wardly from the hand wheel 12 ‘and this apron is threaded
CLUTCH HAND WHEEL FOR A SOFT SEAT VALVE
onto the sleeve 14 which surrounds the cylinder 4. The
Robert P. Dumrn, Long Beach, Calitl, assignor to Paci?c
threads 15 couple the apron 13v and the sleeve 14 so
Valves, Inc, Long Beach, Calif., a corporation of
that the sleeve will move vertically on the cylinder 4
(Iaiii’ornia
when the apron 13 is rotated by the hand wheel 12. A
Filed Dec. 12, 1960, Ser. No. 75,160
wrist pin 16 extends through the sleeve 14 and through
11 Claims. (Cl. 251—81)
the upper end of the stem 8, thus connecting the stem
This invention relates to a hand wheel for a soft
to the sleeve and moving the valve seat 9 vertically to its
seat valve in which a clutch is incorporated to insure
open and closed positions.
that the soft seat will not be injured by exerting too 10
A plug 17 is positioned within the hand wheel 12 and
great a pressure thereon when closing the valve. In the
this plug is formed with a shoulder 18 which extends
type of valve herein considered a relatively small pres
partly over the inner edge of the hand wheel 12. The
sure is all that is required to effectively seat the valve
hand wheel 12 is formed as an annulus and surrounds
in closed position, and any greater pressure than the
the plug 17 as shown. A friction ring 19 is positioned be
maximum required for seating would injure the material
tween the shoulder 18 and the top of the hand wheel 12.
of the seat and thus causing the valve to leak, even
A second friction ring 20 is positioned between the bot
though a proper pressure were applied. In the type of
tom of the hand wheel 12 ‘and the apron 13. One or
valve here under consideration, a force of about 30
more studs 21 extend through the plug 17 and into the
pounds is all that is required to ‘seat the valve against
apron 13, thus coupling these two members, and when
a pressure of 6,000 pounds.
the stud 21 is tightened the friction rings 19 and 20 will
An object of my invention is to provide a novel
be pressed against the hand wheel 12, thus frictionally
clutch construction for the hand wheel which closes
connecting the hand wheel and the apron 13 in the nature
and opens the valve; the clutch being operable to dis
of a driving clutch. To further couple the hand wheel
engage when a ?xed maximum pressure is exerted on the
12 to the plug 17 and the apron 13, I provide a uni
hand wheel, and to provide a positive engagement for . directional clutch construction best shown in FIGURE 3.
the valve in the opening position to permit an opening
The plug 17 is provided with a plurality of circumferen
force somewhat greater than the closing force, if this
tially spaced tapered slots 22, which slots terminate at
should be required.
one end in a shoulder 23.
Another object of my invention is to provide a novel
clutch hand wheel for soft seat valves of the character
24 extend radially through the hand wheel 12 and engage
the slots 22. vIn closing position the hand wheel 12 ro
tates in the direction of the arrow 25 and, therefore,
stated, in which the clutching action of the hand wheel is
operable during only part of the vertical stroke of the seat
of the valve, namely, when the seat is in closed position.
Still another means is to provide a novel means of fric
tionally connecting the hand wheel and the seat actuat
ing mechanism; this frictional connection acting as an
additional clutch connection between the parts.
Other objects, advantages and features of my invention
may appear from the accompanying drawings, the sub
joined detailed description and the appended claims.
In the Drawing
FIGURE 1 is a longitudinal sectional view of my
clutch hand wheel positioned on a, valve.
FIGURE 2 is a perspective view of the clutch hand
wheel construction with parts broken away to show in
terior construction.
One or more spring detents
when a pressure is reached which will compress the de
tents 24 these detents will slide out of the slots 22
without rotating the plug 17 and the apron 13. In the
opposite direction of rotation of the hand wheel 12, that
is in opening position of the valve, the spring detents
24 will engage the shoulders 23, thus permitting a some
what greater force which may be applied to the hand
wheel 12 in order to unseat the valve under conditions
where the valve seat 9 may be stuck somewhat and, there
-fore, a slightly greater force might be required to unseat
the valve than is required in seating the valve.
It is desirable that the hand wheel 12 shall be free to uti
lize the clutching construction previously described when
the seat 9 is about to engage the seat 7, that is, during the
closing movement of the valve. When the valve is in
full open position, and for approximately one~half of its
FIGURE 3 is a horizontal sectional view taken on
movement towards closed position, the hand Wheel 12 may
line 3-3 of FIGURE 1.
be directly coupled to the plug 17 and the apron 13 with
FIGURE v4 is a fragmentary vertical sectional view of 50 out any clutch action. For this purpose I provide a pin
the clutch hand Wheel.
26 which is pushed downwardly by the spring 27, so that
My hand wheel construction is particularly applicable
the lower end of the pin will ride on top of the sleeve 14
to high pressure globe valves, ‘although other types of
in the raised or uppermost position of the sleeve. As the
valves may also employ this construction. For pur
sleeve 14 continues to move upwardly (during the opening
poses of illustration I will describe hereafter a globe
position of the valve) the upper end of this sleeve will
valve in which the numeral 1 indicates the body of the
engage the pin 26 and push the upper end of the pin into
valve, and which has an intake port 2 and an outlet
the complementary recess 28 in the plug 17 and the hand
port 3. A cylinder 4 is ?xedly mounted in the body 1
wheel 12. Thus in the raised position of the pin 26 it will
by a suitable means. The cylinder 4 extends vertically
couple the hand wheel 12, the plug 17, thus causing these
into the body 1 and is formed with a vertical bore 5. 60 two parts to rotate in unison and without any clutching
This bore is open at the bottom and closed at the top
action. As soon as the sleeve 14' has moved downwardly
by the transverse wall 6. A seat 7 is provided in the
(for approximately one-half of its stroke) the pin 26 will
body 1 and surrounds the intake 2 of the valve. A valve
have moved out of the recess 28, and thereafter the hand
stem 8 is positioned in the bore 5 of the cylinder 4 and
wheel 12' and the plug 17 are coupled by the clutch con
is movable vertically in this bore. A soft seat 9 is mounted 65 struction previously described. Therefore, when start
in the enlarged head 10 on the lower end of the stem
ing to close the valve from its completely open position
8, and this head has a limited vertical movement within
no clutch action will connect the hand wheel 12 and the
the enlarged bore 11 in the lower end of the cylinder 4.
valve actuating mechanism, since the valve might be some~
To move the stem 8 vertically for the purpose of rais
what stuck when it remains in a fully open position for a
ing or lowering the head 10 relative to its seat 7, I pro
considerable length of time. As the valve head 10 ap
vide a hand wheel 12 which is rotatably mounted at the 70 proaches its closed position, and when the soft seat 9
upper end of the cylinder 4. An apron 13 extends down
actually engages its seat, then the clutch structure is op
3,053,498
3
erative so that a limited amount of force is applied to the
seat 9 in closing the same, and to prevent injury to the
soft seat. The detents 24 thus prevent excessive tighten
ing of the valve in closed position, since the hand wheel
12 will slip under pressures above the safe amount.
ll
cylinder, said pin having a limited vertical movement in
the cylinder, a sleeve surrounding the cylinder, said pin
being seated in the sleeve, an apron depending from the
hand wheel, interconnecting threads on the apron and
sleeve, said apron and hand wheel being rotatably mounted
on the cylinder whereby rotation of the hand wheel will
motivate the pin to raise or lower the stem, and clutch
means arranged between the hand wheel and said apron,
In Operation
Assuming that the valve head 10 is in its uppermost po
a friction ring positioned between the hand wheel and the
sition in the counterbore 11 with the sleeve 14 pressing
the pin 26 upwardly into the complementary recesses 28. 10 apron.
5. A globe valve having a cylinder projecting from the
Thus the hand wheel 12 is ?xedly coupled to the plug 17
and the apron 13. In this position higher torques can be
applied to the hand wheel 12 for the purpose of starting
the valve towards its closed position. When the head 10
has travelled downwardly approximately one-half of its
full travel, the spring 27 will force the pin 26 out of the
recesses 28 and thereafter the clutch construction between
the hand wheel 12 and the plug 17 will be operative.
When the soft seat 9 reaches its seated position, excessive
torque on the hand wheel 12 is prevented by the spring
body thereof, and a seat in said body, a stem extending
into the cylinder, a soft seat on said stem, said soft seat
resting on the ?rst named seat in one position of the parts,
a hand wheel, a pin extending through the stem and into
ment of the stem 8.
ing into the cylinder, a soft seat on the stem, said soft
seat resting on the ?rst named seat in one position of the
parts, a hand wheel, a pin extending through the stem
the cylinder, said pin having a limited vertical movement
in the cylinder, a sleeve surrounding the cylinder, said pin
being seated in the sleeve, an apron depending from the
hand wheel, interconnecting threads on the apron and
sleeve, said apron and hand wheel being rotatably mounted
on the cylinder whereby rotation of the hand wheel will
detents 24, which will move out of the slots 22 when
motivate the pin to raise or lower the stem, and clutch
torque greater than the allowable is exerted on the hand
means arranged between the hand wheel and said apron,
wheel 12. To start the seat 9 off of its seated position,
said clutch means including a spring detent, said apron
that is, when the hand wheel 12 is moved in the opposite
direction from the closing position, then the spring de 25 having recesses therein to receive the spring detent, a fric
tion ring positioned between the hand wheel and the apron.
tents 24 will engage the shoulders 23 so that there is a
6. A globe valve having a cylinder projecting from
positive connection between the hand wheel 12, the plug
the body thereof, and a seat in said body, a stern extend
17, and the apron 13 to accomplish the unseating move
Having described my invention, I claim:
1. In a globe valve having a cylinder projecting from
the body thereof, and a seat in said body, a stern extending
into the cylinder, a soft seat on said stem, said soft seat
resting on the ?rst named seat in one position of the parts,
a hand wheel, a pin extending through the stem and into
the cylinder, said pin having a limited vertical movement
in the cylinder, a sleeve surrounding the cylinder, said
pin being seated in the sleeve, threaded means connecting
the sleeve and the hand wheel, said threaded means and
hand wheel being rotatably mounted on the cylinder
whereby rotation of the hand wheel will motivate the pin
to raise or lower the stem, and clutch means arranged
between the hand wheel and said threaded means.
2. A globe valve having a cylinder projecting from the
body thereof, and a seat in said body, a stem extending
into the cylinder, a soft seat on said stem, said soft seat
resting on the ?rst named seat in one position of the parts,
a hand wheel, a pin extending through the stem and into
the cylinder, said pin having a limited vertical movement
and into the cylinder, said pin having a limited vertical
movement in the cylinder, a sleeve surrounding the cylin
der, said pin being seated in the sleeve, an apron depend
ing from the hand wheel, interconnecting threads on the
apron and sleeve, said apron and hand wheel being ro
tatably mounted on the cylinder whereby rotation of the
hand Wheel will motivate the pin to raise or lower the
stern, and clutch means arranged between the hand wheel
and said apron, a pin reciprocally mounted in the apron,
one end of said pin being engageable with the sleeve
in one position of the parts, spring means engaging the
pin to press the pin towards the sleeve, said hand wheel
and apron having cooperating recesses therein into which
one end of said pin extends in one position of the parts.
7. A globe valve having a cylinder projecting from the
body thereof, and a seat in said body, a stem extending
into the cylinder, a soft seat on said stern, said soft seat
hand wheel, interconnecting threads on the apron and
resting on the ?rst named seat in one position of the
parts, a hand wheel, a pin extending through the stem
and into the cylinder, said pin having a limited vertical
movement in the cylinder, a sleeve surrounding the cylin
sleeve, said apron and hand wheel being rotatably mounted
on the cylinder whereby rotation of the hand wheel will
der, said pin being seated in the sleeve, an apron depend
ing from the hand wheel, interconnecting threads on the
in the cylinder, a sleeve surrounding the cylinder, said pin
being seated in the sleeve, an apron depending from the
motivate the pin to raise or lower the stern, and clutch
apron and sleeve, said apron and hand Wheel being ro
means arranged between the hand wheel and said apron. 55 tatably mounted on the cylinder whereby rotation of
3. A globe valve having a cylinder projecting from the
the hand wheel will motivate the pin to raise or lower the
body thereof, and a seat in said body, a stem extending
stem, and clutch means arranged between the hand wheel
into the cylinder, a soft seat on said stem, said soft seat
and said apron, said clutch means including a spring
resting on the ?rst named seat in one position of the parts,
detent, said apron having recesses therein to receive the
a hand wheel, a pin extending through the stern and into 60 spring detent, a pin reciprocally mounted in the apron,
the cylinder, said pin having a limited vertical movement
one end of said pin being engageable with the sleeve
in the cylinder, a sleeve surrounding the cylinder, said
in one position of the parts, spring means engaging the
pin being seated in the sleeve, an apron depending from
pin to press the pin towards the sleeve, said hand wheel
the hand wheel, interconnecting threads on the apron and
and apron having cooperating recesses therein into which
sleeve, said apron and hand wheel being rotatably mounted 65 one end of said pin extends in one position of the parts.
on the cylinder whereby rotation of the hand wheel will
8. A globe valve having a cylinder projecting from
motivate the pin to raise or lower the stem, and clutch
the body thereof, and a seat in said body, a stem extend
means arranged between the hand wheel and said apron,
ing into the cylinder, a soft seat on said stem, said soft
said clutch means including a spring detent, said apron
seat resting on the ?rst named seat in one position of the
having recesses therein to receive the spring detent.
parts, a hand wheel, a pin extending through the stem
4. A globe valve having a cylinder projecting from the
and into the cylinder, said pin having a limited vertical
body thereof, and a seat in said body, a stem extending
movement
in the cylinder, a sleeve surrounding the cylin
into the cylinder, a soft seat on the stem, said soft seat rest
der, said pin being seated in the sleeve, an apron depend
ing on the ?rst named seat in one position of the parts, a
hand wheel, a pin extending through the stern and into the 75 ing from the hand wheel, interconnecting threads on the
3,053,498
6
5
apron and sleeve, said apron and hand wheel being ro
tatably mounted on the cylinder whereby rotation of the
hand wheel will motivate the pin to raise or lower the
stem, and clutch means arranged between the hand wheel
and said apron, said clutch means including a spring de
tent, said apron having recesses therein to receive the
on the cylinder whereby rotation of the hand wheel will
motivate the pin to raise or lower the stem, a plug posi
tioned within the hand wheel, an apron depending from
the plug and arranged below the hand wheel, means
?xedly connecting the plug and the apron, spring detents
in the hand wheel, said plug having slots in the side
thereof to receive the spring detent, and a friction ring
positioned between the hand wheel and the apron.
spring detent, a friction ring positioned ‘between the hand
wheel and the apron, a pin reciprocally mounted in the
11. In a globe valve having a cylinder projecting from
apron, one end of said pin being engageable with the
the body thereof, and a seat in said body, a stem extend
sleeve in one position of the parts, spring means engaging
ing into the cylinder, a soft seat on said stem, said soft
the pin to press the pin towards the sleeve, said hand
seat resting on the ?rst named seat in one position of the
wheel and apron having cooperating recesses therein into
parts, a hand wheel, a pin extending through the stem
which one end of said pin extends in one position of the
and into the cylinder, said pin having a limited vertical
parts.
9. In a globe valve having a cylinder projecting from 15 movement in the cylinder, a sleeve surrounding the cylin
der, said pin being seated in the sleeve, threaded means
the body thereof, a seat in said body, a stern extending
connecting the sleeve and the hand wheel, said threaded
into the cylinder, a soft seat on said stem, said soft seat
means and hand wheel being rotatably mounted on the
resting on the ?rst named seat in one position of the parts,
cylinder whereby rotation of the hand wheel will motivate
a hand wheel, a pin extending through the stem and into
the pin to raise or lower the stem, a plug positioned
the cylinder, said pin having a limited vertical movement
within the hand wheel, an apron depending from the plug
in the cylinder, a sleeve surrounding the cylinder, said
and arranged below the hand wheel, means ?xedly con
pin being seated in the sleeve, threaded means connecting
necting the plug and the apron, spring detents in the hand
the sleeve and the hand wheel, said threaded means and
wheel, said plug having slots in the side thereof to re
hand wheel being rotatably mounted on the cylinder
whereby rotation of the hand wheel will motivate the pin 25 ceive the spring detent, a pin reciprocally mounted in the
apron, one end of the pin engaging the sleeve in one
to raise or lower the stem, a plug positioned within the
position of the parts, spring means engaging the pin
hand wheel, an apron depending from the plug and ar
to urge the pin towards the sleeve, said hand wheel and
ranged below the hand Wheel, means ?xedly connecting
plug having cooperating recesses therein, one end of said
the plug and the apron, spring detents in the hand wheel,
pin extending into the cooperating recesses in one position
said plug having slots in the side thereof to receive the
of the parts.
spring detent.
10. In a globe valve having a cylinder projecting from
References Cited in the ?le of this patent
the body thereof, and a seat in said body, a stem ex
UNITED STATES PATENTS
tending into the cylinder, a soft seat on said stem, said
soft seat resting on the ?rst named seat in one position 35 2,608,377
Streun ______________ __ Aug. 26, 1952
of the parts, a hand wheel, a pin extending through the
2,831,648
Meyer _______________ __ Apr. 22, 1958
stern and into the cylinder, said pin having a limited ver
2,881,602
Baker _______________ __ Apr. 14, 1959
tical movement in the cylinder, a sleeve surrounding the
FOREIGN PATENTS
cylinder, said pin being seated in the sleeve, threaded
means connecting the sleeve and the hand wheel, said 40
threaded means and hand wheel being rotatably mounted
1,109,246
1,162,263
France ______________ __ Sept. 21, 1955
France ..__,___ __________ .. Apr. 8, 1958
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