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Патент USA US2135130

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Nov. 1, 1938.
R. M. VIDALaE
-
2,135,130
413mm? REGULATOR
Filed March 5, 1936
-
2 sheets-sheet 1
No'v. 1 , 1 938.
R. M. VIDALIE>
2,135,130
DRAFT REGULATOR
Filed March 3, 1936
2 Sheets-Sheet 2
@Mouw/15
2,135,13o
Patented Nov. 1, 1938
oNiTeo STATES PATENT OFFICE
Port Washington, N. Y., as
Inc.,
Rene M. Vidalie,
signor to` Preferred Utilities Company,
a corporation of Delaware
New York, N. Y.,
`Application March K3, 1936, .Serial no. .oasis
23e-_45)
'
17 Claims. (01.'
arranged tosvving inwardlyoniy. about a horizon
tal pivot 22 .to Which the bottom oi said .doorfis
This invention relates to'automaticdraft regu
secured in .anysuitable .-fashion.
The regulating
circular periphery and `adapted to ~5
lators _and has particular reference to that type
,wherein counter-balancing Weights may jbe ad
justed to insure a substantially -constant prede
ment having a
be secured tothe outeriace of the -`door «M in
such ~manner that its rotative center is substan
rf termined-draft on a boiler `regardless -ofoutside
weather conditions. Such regulators maintain
door .pivot 22, which n
tially coincident with the
.this .constant draft by mixing‘rnore or less out
element is provided with a lplurality of variable pil. 0
side ,air with .the `stack gases as Ythe stack 'pull
balancing Weights which may be so adjusted that
is increased or >decreased due to changes in at
mospheric conditions. This results in Aan even the said door 1 provides an opening accurately
(M) ,pull -.on the ,fire box .of the boiler yregardless .of . Variableto .admit a variable amount oi air in ac
cordance with the tendency of the draft .to change
.due to Youtside weather conditions.
An object oi theinvention is to insure rthe .au
.outside
conditions.
-
~
Y
,
»
'
The ,regulator has been illustratedin the form
of a sector-like element composed of radial arms
tomatic .maintenance-of vsuch .a »constant `draft in
‘large boiler <plants Where the economy produced
thereby is of great importance. This is accom
plished Yby my improved. re >`lator which is
fine adjustment by means
24 and 26 and their included arc 28. While the
included arc 28 is a true arc throughout, the
radial `arms 24 and 26 do not constitute true
capable of exceedingly
radii thereof for reasonsto be brought out' more ao
of a series of counterbalancing weights ,so .ar
rangedand constructedthat themass of the reg
,ulating mechanism may be delicately .poised on
its pivotal mounting and the other `adjustments
subsequently made _to produce and .maintain the
desireddraft under existing conditions.
clearly hereinafter.l
Other objects and meritorious features of the
invention will .become apparent vfrom therfollow
ing specifications taken in conjunction »with the
be integral With the sector-like element and ex
tend throughout the major portion of its arc.
, ,
They are Ypreferably provided with consecutive
.Figure 1 illustrates my improved regulating
numerals as indicated at 3S. A radial ar'mì38 iS
mechanismsornewhat .diagramrnatically in asso
30
ï
ciation With _a damper door; „
'
Y
V_Figure 2 is an elevation oi the improved .regu
lating mechanismV per se;
.
_
Y pivoted at one end to stud 4U which is located
,
Figure 3 isa section along line 3--3 of _Fig
35
at Athe joinder of the two radial arms -2li» and‘ZB.
v The >arm is "shown as pivoted by means oi a bolt
4,2 AVwhich extends through slotY M in the arm.v 555
I
ure 2;
,
,
.
,
'Figure 4 "is
a section along
line 4--4
of Fig
'
The'arm must be pivoted through such a lost
I
Figure v5is a 'front elevation of one oi the vari
ure 2_;
Y
_
able Weight supports;
A
j
Y
.
Figure> 6 is a section through the same sup
.40
port diagrammatically showing WeightsY posi
tioned thereby, and
'
,
y
`
l Figure ‘7 'is a perspective oi one of the inter
changeableWeight-s which may be used with any
onefoi various Weight receptacles associated with
45
the regulating mechanism. ,
l
comprising a central web section 30 and vaîi outer
peripheral flange 32. Projections 3‘4' are ar :2,5
arranged at spaced intervals on one side of the
web 3o Vinside flange 32. These projections may
»
drawings, vvherein:>
,
Forpurposes lof illustration this sector-like ele
ment has been shown‘formed‘oi T-shapedY stock
.
Referring now ito Figure l, the improved regu
lator is Vshown in conjunction with a box or cabi
net l0 having an opening l2 in the front to re
ceive a door ‘I4 and an opening i6 in the backto
motion connection as the slot provides because
the outer end thereof is adapted'toï swing around
the 'periphery of 'the true are of the sector-'like
element but its pivotal point is not at the 'true
center thereof.`
‘
Y '
The other end of arm
38 is bifurcated'onepor
tion 4B bei-ngv offset 'from the plane foi the 4arm
and `adapted to ‘swing lacross the smooth face Iof 45
y the web 30 andthe -other being threadedly aper
> tured to receive a small hand wheel 48 Which‘ma-y
be manually manipulated to cooperate with the
projectionsßd to >i'ixedly position the said arm
38 at -any point in its swinging movement.
A Weight y5!! is slidably pos‘tioned upon arm-:38 50
and provided with a threaded aperture adapted
50 guide the air to the Vvbreeching-or stack of the » to receive,anothersmall-manually operable hand
boiler. A throat 518 may be secured vby flanged Wheel 52 which functions .to `‘?ixedly position the
'joints 20 around 'the rear opening of the cabinet said Weight at anyv ïpoint ,in .its Vsliding movement 55
Where it is noil possible to fasten the vcabinet di
55 rectly to >the breeching or stack. The ,door l4'is
along the arm 38. The ,said _arm 38 maybe ,pro
the door. In other Words, the center Qing!
arc of the sector-like element
coincident with pivot 22 of the door I4.
n
10
maintained in the boiler.
ment of the device may ,Operation and adjust
the following manner:
15
be described brieñy in
The open end of cylindrical weight receptacle
20 56 is provided with a cover plate
apertured to receive
adapted to extend through' vthe slots 66 in the
weights 68 to assist in positioning the same with
inrthe receptacle. This bolt 'Ill is threaded into
ñeld.
end
of
strap
ing weight. 90 may be called ' the> draft balanc
30
35
of the receptacle.
dumbbell receptacle
are> positioned by means ’
of a rod 86, threaded `at each Vend. extending
through the slots in the weights and held in place
50 by
nuts 88.
«
~
’
55
60
is provided with a series of
65
spaced laterally extending rigid straps 98, se
cured to or made integral with
exerts a constant pull tending to
close the door I4 regardless
y
thesaid arm, by ' which the said door may be.
Which the'heretofore described regulating assem
bly issecured to the door I4.Y Duelto the design
of the sector-like element as heretofore described,
the door pivot 2_2 coincidessubstantially with the
65
rotative center'of the sector-like Aelement when
the sameisatta'ched tothe door. The arm? 26
the door.
50 permits an
exceedingly fine adjustment ofthe door, poising 75
10
‘52,1 35,1130
the same delicately upon lits pivot at `any open
-ing lof the ydoor which fproves most feasible for
'given draft conditions. Variation vof 'the weights
Iin the >sector balancing weight will relieve >-any
tendency toward too rapid movement of the door
`that .the included .arc -is substantially Íconcentric
VVdvi-iring varying draft conditions.`
pivot, andan adjustable weight positioned on
The function of such a draft »regulator as >that
ëherein described -of permitting Vopeningla'nd clos
ing of the door «in accordance-with the need for
«air within the `breeching or stack "to maintain a
constant ~~dra-ft is too »well understoodgto require
discussion herein.
While the `arms 24 and 2li _do
not constitute true radii Iof lthe true arc 28 of the
sector, these »arms are substantially radial and
mhave `been referred to iin the claims as “radial
arms.” It is likewise true that »in positioning :the
regulator Vmechanism on the door it maybe im
possible to make the center of the true arc
'coincide precisely with `the >pivot 22 >of door> I4.
'20 It will therefore be understood -that an important
feature of 4the design resides in the vfact that
'the twolare “substantially coincident.” Itwill
ylikewise be understood that the element which
has been termed a “sector-like element” >does not
constitute a true sector in `that the Aarms ,24 and
>26 are not true radii. The language of the
'claims is Ato be interpreted din the light of the
explanations -made herein. YIt is obviously unim
portant whether a solid element havingsuch `a
"30 sector-like shape as the element illustrated is
used in lieu of the latter, the’important `point
being the geometrical arrangement of the as
sembly.
'
‘
.
Itis to :be noted that the-weights 60 andthe
'various supports Vor receptacles therefor are so`
arranged that the said weights may be used in
terchangeably in any of the supports or recep
tacles.
'
Various modifications of the vdevice illustrated
40 herein will `be apparent to those skilled in ‘the art
and for >that reason I wish to limit myself only
within the scope of the appended claims.
What I claim is:
1. A draft regulator including in combination
45 a pivoted door, an element having a circular
with said pivot, the other radial arm extending
-in a :direction substantially perpendicular toíthe
plan-e of said-door, fixed Abalancing weights `positioned on said element on opposite sides «of vsaid f5
'sa'idelement for movement Within 4.the peripheral
`limits of said sector.
`
«
'
>5. -The -combination with a draft regulator door
arranged for -inward swinging movement l about »a (10
‘horizontalpivoh of a sector-’like element having
l‘one radial arml secured to the face of said door
and the other extending below said'pivot to the
inner -side thereof, variable weights positioned on
vsai-d Aelement-on opposite sides of said` door, »and a
weight positioned Aon `said element for adjusting
movement within the yperipheral limits -of said
element.
v
6. The combination'with a `draft regulatordoor
arranged -for inward lswinging movement about a 20
horizontal pivot,~of a-sector-like element having
one radial Varm secured to the face of said door
and the other extending below said pivot Y.to the
>inner side thereof, »variable weights positioned
on said element on. opposite sides of said door, £5
and a weight positioned on said element ar
ranged for universal movement within the »pe
>ripheral confines thereof.
l
p
’7. The combination with a-draft regulator door
arranged for inward swinging movement about a
horizontal pivot, of a sector-like'element having
one radial armsecured to the -face of said door
andthe other extending below’ said pivot 'to the
‘inner »side thereof; variable weights positioned on
said element on opposite-sides of said door, an
arm pivoted at one end adjacent the _juncture of
said radial Yarms and swingable at the otheralong
ythe arc vof the sector, and a >weight slidable along
said arm.
v
8. The combination with a draft regulator door
arranged `for inward swinging movementl about a
horizontal pivot, of a sector-like >element lhaving
one radial arm secured to the face of said door
and the other extending below said pivot to the
inner side'thereof, variable weights positioned on
periphery of more than 180° and occupying a said element on opposite sides of said door, an arm 45
plane intersecting that of said door secured there
pivoted at one end adjacent the juncture of said
to substantially along a radius 0f said element ' radial arms and swingable at the other along the
so that its rotative center is substantially coin
arc of the sector, a weight slidable along said
cident with the door pivot, and a weight posi
arm, means‘for fixing said arm at any point in
tioned on said element for universal movement its swinging movement, and means for fixing said
in a single plane along the major portion of said weight at any point in its sliding movement.
circular periphery to permit its placement on
9. The combination with a draft regulator door
either side of the plane of the door.
arranged for inward swinging movement about a
2. The combination with a draft regulator door
arranged for swinging movement about a hori
zontal' pivot, of a sector-like element having one
radial arm secured to the face of said door so that .
the included arc is substantially concentric with
said pivot, and a weight positioned on said ele
ment for universal movement within the pe
ripheral limits of the sector.
3. The combination with a draft regulator door
arranged for swinging movement about a hori
zontal pivot, of a sector-like element having one
radial arm secured to the face of said door so that
the included arc is substantially concentric with
said pivot, a weight positioned on said element
for universalV movement within the peripheral
70 limits of the sector, and -means for ñxing said
weight at any adjusted position.
Y
4. The combination with a draft regulator door
arranged for swinging movement about a hori
zontal pivot, of a sector-like element having one
75 radial arm secured to the face of said door so
horizontal pivot,V of a sector-like element having 55
one radial arm secured to the face of said door and
the other extending below said pivot to the inner
sidethereof, a flexible strap secured to the outer
face of the sector arc above a plane through said
pivot perpendicular to said door and seated there 60
along, a variable weight supported on said strap,
a variable vweight positioned on said arc in sub
stantially the plane of the. door, a third variable
weight positioned on said element inside the
plane of the door, and a fourth weight -positioned 65
on said element for universal movement in a
single plane within the externalk limits of the
sector-like element.
i
.
10. A draft regulator including in combination
a pivoted door at one edge, an element having a 70
circular periphery and occupying a plane at right
angles to said door secured thereto so that its
rotative center is substantially rcoincident with
the door pivot, variable weights i’ixedly positioned
with reference to and on said element on oppo
75
2,135,130
4
site sides of the plane of the door, and a Weight
positioned on said element for universal move
ment in a plane angular to that of the door and
Within the limiting confines of said circular pe
riphery.
11. A draft regulator including in combination
a pivoted door, an element having a circular pe
riphery and occupying a plane at right angles to
said door secured thereto so that its rotative
10 center is substantially coincident with the door
pivot,` variable Weights ñxedly positioned With
reference to and on sai-d element on opposite sides
of the plane of the door, a `variable Weight posi
tioned on said element substantially in the plane
15 of the door, and a Weight positioned on said ele
ment for universal movement in a plane angular
to that of the door and within the limiting con
ñnes of said circular periphery.
12. Counterbalancing mechanism for a pivoted
20 draft-regulating door comprising a pair of inter
secting arms, a continuous member connecting
the outer ends of said arms and extending
throughout more than 180° to form a composite
element, variable Weights positioned on said ele
25 ment on opposite sides of one of said arms, a
variable Weight positioned on said continuous
member and lying Within a plane parallel to that
of one of said arms, and a Weight positioned be
tween said arms and continuous member for uni
v30 versal movement in» a plane substantially parallel
With that of said arms. "
14. CounterbalancingV mechanism for a- pivoted
draft-regulating door including a sector-like ele
ment, an arm slidably pivoted through a lost
motion connection adjacent the juncture of the
radial arms of said element and slidably engaged
with the periphery thereof, and a Weight slidably
mounted on said arm.
15. Counterbalancing.mechanism for a pivoted
draft-regulating door including a sector-like ele
ment, an arm pivoted adjacent the juncture of 10
the radial arms of said element and slidably en
gaged With the periphery thereof, and a Weight
slidablyA mounted on said arm.
16. Counterbalancing mechanism for a pivoted
draft-regulating door including a sector-like ele 15
ment, an arm pivoted adjacent _the juncture of
the radial arms of said element and slidably en
gaged With the periphery thereof, a Weight slid
ably mounted on said arm, a weight ñxedly posi
tioned on said element adjacent the juncture of 20v
o_ne radial arm and the arc thereof, a second
Weight ñxedly positioned on said element in a
plane parallel to the other radial arm, and a
weight secured to the arc of said sector at a point
removed substantially 180° from said juncture- located weight.
Y _
Y
17. Counterbalancing mechanism for a pivoted
l»draft-regulating door including a sector-like> ele
ment, an arm pivoted adjacent the juncture of
the radial arms of saidV element and slidably en 30
_gaged with the periphery thereof, aÍWeight slid
13. Counterbalancing mechanism for a pivoted
draft-regulating door comprising a pair of inter
secting arms connected at their outer extremities
by a continuous member extending inrexcess of
ably mounted onsaid arm, a Weight ñxedly posi
180°, another arm pivoted adjacent the intersec
plane parallel to the other radial arm, a flexible
vstrapsecured to the arc of said sector atïa point
tion of said arms and extending toward said con
tinuous member, means at the other end of said
tioned on said element adjacent the juncture of Y
oneradial arm and the arc thereof, a second.
WeightV ñxedly positioned on said element in a 35
removed substantially 180° from said juncture
last-mentioned arm whereby the same can be ñX
located Weight, and a variable Weight secured to
edly positioned at pre-determined points along
said strap.
said continuous member, and a Weight slidable
along said arm.
_,
.
`
y
RENE M. VIDALIE.
v
CERTIFICATE 0F CORRECT’IQN.
Patent No.
>
2,155,150.
t
' `
'
v November 1, 1958,
RENE M.
VIDALIE.
’
It is hereby certified that error appears> in- the printed.> specification
of theA above'numbered patent requiring correction 41s> follows: Page 5, second
column, line TO, claim 10,. for the words "pivoted door"A read door pivoted;
end that the said Letters Patent 4should be read with this correction there
in that the same may conform to the record of the case in the Patent` Office.
Signed and sealed- thi'e 20th dey ofvDecember, A, D. 1958. - l
y
VHenry' Van Arsdal'e
(Seal)
‘
v
'
y
Acting Commissioner of -Patents.v
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