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Патент USA US2070710

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Feb. 16, 1937.
F~ ¿_ CLARK
2,070,710
STEAM DISCHARGE PREssING DEVICE
Filed Jan. 3, 1935 '
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2,070,710
Patented Feb.16, 1937
UNITED STATES
PATENT AOFFICE
2,070,710 "
STEAM mscnAnGE PaEssrNG DEVICE
Frederick J. Clark, Buffalo, N. Y., assignor to
_ Steam Pressing Iron Company, Buffalo, N. Y.
Application January 3, 1935, Serial No. `253
10 Claims. (Cl. 38-77)
This invention relates to improvements in
pressing irons of that type which are provided
with means such, for example, as an electric heat
ing element, for heating the iron and with a
5 steam chamber in which water or wet steam is
easily cleaned out; also to provide a steam gen
erating device which will insure the quick and -
complete conversion of any water into steam;
also to provide desirable steam discharge control l
means for the device; and also to provide a de
heated by the iron heating means to furnish
steam for discharge at the pressing face of the
iron for moistening or steaming the material be
sirable pressing and steam discharge device which
has the other features of improvement and ad
vantage hereinafter described and set forth in
ing pressed;
the claims.
l
ISome goods are spotted or discolored by con
tact with water and it is therefore important that
steam-discharge irons shall be constructed so aS
to insure that the steam will be in a superheated
or dry condition when discharged against the
goods being pressed, and so as to prevent the pos
sibility of any wet steam or water issuing from
the steam discharge orifices ofthe iron. ' At
tempts have been‘made to prevent the possibility
of spotting' or injuring goods by water in the use
.,0 of steam’l discharge pressing irons, by employing
irons which are supplied with steam from a dis
tant steam generatoror boiler, such irons being
provided with means for superheating the steam,
and provision being made for preventing any
water of condensation from the steam from pass
ing to the steam discharge orifices of the iron.
Such irons, however, necessitate an installation
including a boiler or generator with ñexible steam
hose leading to the iron, and other more or less
30 complicated or elaborate equipment, making such
.
.
In the accompanying drawing:
Fig. 1 is a longitudinal, sectional elevation of
an electrically heated steam discharge iron em
bodying my invention.
Fig. 2 is a sectional plan view thereof on linev
2_2, Fig. 1.
15
»
Fig. 3 is a sectional plan view thereof on line
3_3, Fig. l.
.
Fig. 4 is a front elevation of the iron.
Fig. 5 is a detail section, enlarged, of the- re-4
movable gauze roll and cap for the bore contain 20
ing the roll.
Figs. 6 and 7 are sections on line 6-6 and ‘I-'I
respectively, Fig. 5.
I
The preferred embodiment of the invention is
illustrated in the drawing in connection with 25
an electric pressing iron of known construction
which comprises a bottom‘p'late I0 and a body
II above the same, both of suitable metal, an
electric heating elementv I'2 interposed between
the bottom plate I0 and body II, a cover I3 en
irons objectionable or impractical for use in some
closing the body Il` and heating element, and a
establishments. Because of such reasons, many
handle I4 for the iron carried by arms rising
from the cover I3. As shown, the metal body
users prefer the irons in which the steam is gen
erated in or at the irons themselves from water
supplied thereto.
An objection to these irons,
30
II is above and secured to the bottom- plate I0
by screws I5 which clamp or secure the electric 35
3' however, is that the steam generating chambers
element I2 between the bottom plate and body
or passages in the irons become clogged or fouled
with lime or other scale or impurities deposited
or settling from the water which soon interfere
II, and the cover is secured in place by a screw
I6 passing through the top of the cover and
screwed into'a threaded 'hole in the body II. I1
40 with the eñicient or proper operation of the iron represents the terminals'or studs for releasably 40
unless removed at frequent intervals, and the. connecting the heating element I2' and electrical
previous constructions of such irons make it dif
conductor, and I8 the u_sual thermostat arranged
ñcult or impractical to properly rid them of the
'in va cavity in the bottom of the iron for con
scale or deposits.
45
'
The objects of my invention are to provide a
» steam discharging pressing iron in which the
steam is generated from the water supplied to
the iron but which is -of a novel construction
which will insure the proper superheating or dry
50 ing of the steam and prevent the possibility of
discharge of any water from the iron; also to
construct the iian so that it can be. -used with
eitheswater or steam supplied thereto; also to
construct the iron so that the water or steam
chambers or bores thereof can be quickly and
trolling the temperature of the iron. The con
struction of the iron as thus far described is 45
that of a known electrically heated pressing iron.
My invention is not concerned with the elec
trical features of the iron, which may be of the
usual and suitable construction, and being well
known, further description thereof isunneces 50
sary.
The body II of the iron is chambered to re~`
ceive water for conversion into steam by the heat
from the heating element. Preferably, for this
purpose, the body II is drilled to form two
2
2,070,710
straight bores 20 and 2| which extend forwardly tom plate from one or another edge of the plate
in the body || from its rear end andconverge so that all of these passages can Ybe‘readily drilled
toward and arejoined by a chamber 22 in the ' in the body or bottom plate. The end of each
front portion of the body. This chamber 22 is of the several bores at the rear or side edge of
preferably of circular shape in plan and extends the’ body or bottom plate may be suitably closed,
into the body | I from the upper face thereof, thus as by a‘screw plug or stopper, 31 representing the
_being adapted to be readily formed by drilling or plugs for closing the outer ends of the several
boring. The bores 20 and 2| and chamber 22 all bores in the -bottom plate.
The body || being located directly above the
communicate and may be considered as different
10 portions of the same chamber. Although the heating-element I2, is effectively heated thereby,
water is admitted to the rear end of the bore 20 and the heat is utilized to convert into steam
and steam is generated in this bore, and passes any water in the bores 20 and 2| and‘chamber 22
therefrom through the chamber 22 and bore 2| in the body | l , and the bottom plate I0 being ar
on its way to thev steam discharge orifices in the ranged directly beneath the heating element, is
15 pressing face of the iron, as presently explained,
also hea-ted thereby to the temperature‘necessary
the two bores 20 and 2| and the chamber 22 are
for pressing and also for drying or super-heating ~
all heated so that the chamber 22 and bore 2| _ the steam during its passage through the bores
will act to furtherl heat and dry any steam gen
erated in the first bore 20 and also to convert into
20 steam any water which may pass into them from
the ñrst bore 20. A top or cover 23 Which closes
the upper end of the chamber 22, may be remov-`
ably secured in place as by a nut 24 screwed on
‘ the threaded upper ,end of a stud 25 which is
25 Ascrewed or fixed in a hole in the bottom of the
chamber 22 and extends out through a central
hole in the cover 23. A suitable packing gasket
clamped betweenthe rim of the cover and the
shouldered rim of the chamber 22 provides a
30 steam-tight joint between the cover and the
chamber 22. If needed, a packing washer can
also be placed beneath the nut 24. Water is ad
mitted to. the rear end portion of the b_ore 20
under control of a supply valve 26, hereinafter
35 described, which is „connected to a nipple 21 com
in the bottom plate, so that only dry or super
h'eated steam will issue from the discharge per
forations in the bottom plate.
20
,
In order to more thoroughly and eiiiciently
heat the water and convert it into steam in the
bores 20 and 2| and prevent condensation of
water from the steam, and also to facilitate the
25
removal from these bores of any scale or sedi
ment deposited from the water and thus prevent
the clogging of the bores,- a~roll or_cylinder of
wire gauze, preferably made by rolling up fine
mesh brass wire gauze into a roll of s‘everal turns
or layers o-f the gauze, extends into each of the 30
bores 20 and 2| through its open rear end. Each
of these gauze rolls is of a diameter adapting it
to be' easily inserted into and removed from the
bore 20 or I2 I, and of a length for its outer end to
extend beyond the` bore into a hollow screw cap 35
municating with the bore 20, and is provided with or member 40 which closes the outer end of the
a water inlet fitting 28' adapted for connection bore. As shown, this cap screws ontova nipple 4|
with a ñexible water supply hose or, pipe, not screwed into the threaded outer end of the vbore
and through which the gauze roll extends. 'I‘he
The bottom plate I0 of the iron is provided screw cap projects outwardly from the rear end 40
with steam passages which communicate with the of the body of the iron, and the wire gauze roll.
steam chamber in the body | | of the iron and extends outwardly beyond the end of the body | |
from one or more of which steam discharge ori- ' and nipple 4| into- the cavity of the cap. ’I'here
ñces or perforations lead to the bottom or press
fore, the screw cap can be readily unscrewed and
45 ing face of the iron'. Preferably, as shown,jtwo removed, and when removed, the gauze roll will 45
Straight bores 30 extend forwardly in the bottom ,be left projecting out of the bore beyond the outerl
plate ||l from its rear end and connect with two end of the nipple, so that the roll can be readily
straight cross bores 3| which extend. obliquely grasped and pulled out of the bore. The gauze
into the bottom plate from opposite sides of its roll provides a heat conducting body having an`pointed front end. In addition, the bottom plate extensive surface area, and when the water is
is provided with two straight bores 32 which ex
admitted to the bore 20, it will fall on and spread
tend forwardly'in the bottom plate from itsv -rear o-ut in thin films on the Wires of the gauze and
end and connect with oblique cross bores 3|,l and will be prevented-by the gauze from lying-in drops
these two longitudinal bores 32 are jointed by a or pools in the bore. Therefore, the Water- will
55 transverse bore 33 which connects with a vertical be quickly converted into steam in the bore 2|! 55
taper bushing or nipple 34 extending up through ‘or, in case too great a volume of water is admitted
- the heating element l2 and connecting at its up
to the bore, if any water passes as liquid from the
per end with a transverse bore 35 in the body | |. bore 20 into the other bore 2|, -i't will likewise
Bore 35 intersects or connects with. the steam spread out on or over the gauze roll or cylinder
60 chamber 2| in the body so'that steam can pass >in the latter bore, and all of thewater will beì 60
>from the rear portion of the chamber 2| 'through converted'into steam before it passes from the
shown.
'
_
_
the passage 35, vertical nipple 34 and bores 33
and'32 in the bottom into the oblique bores 3|.
Small discharge perforations or oriilces 36 extend
65 from the passages 3|, and also preferably from
the connecting passages 30 through the bottom
plate to the' pressing face thereof for discharging
`the steam at the pressing face of the iron.
Thus, the passages 20 and 2| in the body of
rear-end portion ofthe bore 2| to the distribut
ing bores in the bottom plate of the iron. Fur
thermore, _scale or sediment deposited or settling
from the water will collect on one orthe other of
the gauze rolls, and since these are readily re
movable, as explained, they can'be frequently
removed and
dislodged by
70A the iron are formed by straight bores extending , object. The
intoithe body from its rear end, and the trans
or sediment,
any scale or sediment thereon easily
tapping the gauze rolls against an
gauze rolls, freed from the scale 70
then can be quickly and easily re
verse passage 35 is formed- by a straight bore ex- „
placed in ~the iron and their eilicien'cy thus main
tending into the body- from one side edge thereof,
and likewise the passages in the bottom plate are
tained and the accumulation of the scale or sedi- »
ment in the boresprevented.
formed by straight bores extending in_to the bot
cility with which the gauze rolls can be removed
Because of the fa
'mi
3
- 2,070,710
and replaced, they can be frequently removed
without objectionable labor or loss of time to
clean them and the bores, and there is therefore
not the probability of the scale or sediment being
allowed to ,accumulate in the bores sufficiently
to interfere with the eilicient generation of the
steam and operation of the iron, as occurs in the
use of irons which cannot be so easily cleaned.
Also, the gauze rolls will not become cemented in
10 the bores by the accumulation and baking of the
scale, as happens in previous constructions, in
which somewhat analogous elements have been
employed in the steam passages, but in which
they are left inaccessible when the passages are
15 opened, so that the elements cannot be readily
removed. Because of the greater inconvenience
and labor in removingsuch elements in the prior
constructions, they-are allowed to remain longer
in the irons, often until they become cemented in
thev passages, thereby making it practically'im
possible to remove them or, if they can be re
moved, the use of the implement necessary for
the purpose breaks or mutilates the elements so
as to render them unñt for reuse. These diffi
culties are eliminated by the Vdescribed construc
- tion, in which lthe caps 40, when removed, leave
the gauze rolls projecting from the bores so that
they can be grasped and pulled out.
The chamber 22 can be readily opened and
'30 cleaned out by removing its top cover. Since the
steam will be superheated and thoroughly dried
in its passage through the bore 20, chamber 22
and bore 2| before entering the steam passages in
the bottom plate I0, these will not become fouled
set screw, the opening movement of the valve is
controlled by the adjustment of the set screw.
and by first setting the set screw so as to deter
mine the extent to which the valve can be openecL,
the valve can be quickly opened to such extent
simply by moving the lever until itis arrested
by the set screw. The valve will always be opened
the same amount so long as the adjustment of
the set screw remains unchanged, and when the
set screw has once been set to determinev the ex 10
tent of opening of the valve, the valve can be
quickly opened just this amount without the exer
cise of care or judgment on the part of the user of
the iron, it being simply necessary for hlm to
move the lever until it is arrested by the set' screw. 15
In this way the amount of the water delivered to
the steam generating chamber, when the valve
is opened, can be regulated with precision, as re
quired, and the amount of water delivered will be
always uniform whenever the valve is opened. If 20
more or less water is required, this can be -effected
simply by adjusting the set screw to control the
extent of opening of the valve.
As shown, the lug 49 in which the set screw 48
turns projects from a bearing bracket 50 secured 25
to the front arm of the handle i4 of the iron, said
lug havinga split intersecting the threaded hole
for the set screw and a screw 5| by which the
split portion of the lug can be drawn together to
grip and securely hold the set screw in its adjust 30
ments. Preferably, a finger wheel 52 is fixed,
as byy a nut 53, to the front end lof the valve rod
45 and the valve actuating arm 46 is adjustably
secured on the hub of the finger wheel, as by
'Y and will not require cleaning out under normal ' clamping the split inner end- ofthe arm on the
hub by a screw 54. Thus, the arm 46 can be loos
conditions. However, should this become neces
sary, the removable screw plugs afford access to ened and the valve adjusted in or out by turning
the wheel 32 and the arm again fixed to the wheel.
the passages.
'
The water supply valve 26 is preferably a needle
40 valve having a rotatable screw needle with a con
ical inner end cooperating with a small hole or
seat in the inner end of the valve casing and com
municating with the inlet fitting 28 for regulat
ing the flow through the valve. The needle rodl
45 45 of the valve projects out of the valve casing
through a suitable packing gland or box and
extends forwardly of the iron above the cover I3,
and has fixed to its forward end an operating arm
or lever 46 which extends upwardly and inwardly
toward the front end of the handle I4 of the iron
so that the button or knob 41' at the free end of
the lever is located in convenient position for op
eration by the thumb of the hand grasping the
handle of the iron to> open and close the valve 26.
48 represents a set screw which passes through
and turns in a threaded hole in a bracket or part
’ 49 located adjacent the front supporting arm for
‘ the handle |4»of the iron.
This set screw is lo
cated so that its inner end is adapted to be en
60 gaged by and serve as an adjustable >stop for the
actuating lever 46 of the valve. The valve is
closed by a downward movement of the lever
46 and opened by an upward movement of the
lever, and the opening movement of the lever is
limited by engagement of the lever with the set
screw 48. Thus, by adjusting the set screw in or
out, the opening movement of the valve can be
arrested when the valve has been opened to a
Agreater or less extent, thereby regulating, as de
70 sired, the amount of water admitted by the valve,
each time it is opened, tothe steam generating
This construction enables the valve to be set, if
necessary, so that it will be opened a greater or 40
less amount when arrested by the set screw, and
also enables adjustments of the valve to compen
sate for wear. `
.
While the pressing iron or device constructed,
as illustrated in the drawing and hereinbefore
described, is especially intended and desirable for
use when the steam for discharge at the pressing
face is generated in the heating chambers 2D, 2I'~
and 22 or in one or another thereof from water
in liquid form suplied to the chamber 20, the 50
described construction is also capable of use with
~steam instead of water supplied to the heating
chambers of the‘îlevice for superheating or dry
ing. Therefore, the device is' adapted for use
in establishments equipped with steam generat
ing installations.
I claim as my invention:
55
f
Y
1. A pressing device comprising a body having
a chamber with an opening thereinto, a closure
for said opening movable to uncover the opening, 60
means for heating water in said chamber to gen
erate steam, andan element in said chamber for
receiving deposits from the water, said element
being of a size and positioned in the chamber to
project out through said'opening when said clo 65
sure is moved to uncover the opening and being
removable from the chamber through said
opening.
‘
2. A pressing device comprising a body having
a straight passage extending thereinto from one
face of the body, a closure for the outer end of
chamber\\20 of the iron. Since the valve is closed - said passage -movable to open said -outer end,
means for admitting water to said passage, means
wardly or ‘away from the set screw, and is opened for heating the Water in said passage to generate
by movement of its .actuating lever 46 down
75 by movement of the lever upwardly or toward the
steam, and a straight element which occupies 75~
, 4
2,070,710
said passage for receiving deposits from the water
and is of a length to f project out beyond the
passage and is removable through said outer end
when the latter is opened for removing deposits
outer end thereof and is removable through said
from the passage.
outer end when opened.
8. A pressing device comprising a body having
two straight passages extending thereinto from
.
3. A pressing device comprising a body having
a steam passage extending thereinto from a vface
»_
one end of the body, a chamber joining the inner .
of the body, a closure for the outer end of said c ends of said passages to enable circulation from
passage movable to open~said outer end, means
for heating said chamber, and a wire gauze ele
10 ment which occupies said passage and is of a
length to project out beyondthe outer end there
of and is removable through said outer end when
the latter is opened.
y
4. A pressing device comprising a body having
15 a chamber with an opening thereinto, a hollow
cap,I closing said opening and movable to uncover
the opening, means for heating wa'ter in said
Y chamber to generate steam, and an element which .
occupies said chamber for receiving deposits lfrom
20 the water and is of a length to project;- through
said opening into the cavity of said hollow cap
and is removable from the chamber through said
opening when said capis moved to uncover the c
opening.
-
5. A pressing device comprising a body having
a straight passage extending thereinto from one
face of the body, a hollow cap which closes the
Vouter end of said passage and is movable to -
open said -outer end, means for heating said
30 passage and a wire gauze roll which occupies said
passage and is ofv a length to project beyond
the outer end thereof into the cavity of said hol~
one passage to the other, a removable top cover
for said chamber affording access to the cham
ber forcleaning, a closure for the outer end of
each passage movable to open- said end fo’r clean
ing out .the passage, means for heating said pas
sages, means foradmitting ñuid to one of said
passages, straight bores in said device adjacent
the pressing face thereof each extending into the
device from a face thereof, said bores communi
eating with each other and with the second of
said passages, a plug closing the outer end of
each of said bores, and steam discharge oriñces
leading from ones‘or- more of said bores to the
pressing face of the device.
'
9. A pressing device comprising ‘a body and »
a\ bottom plate, a heating element between the
body and bottomv plate for heating both, two,
straight bores extending into the body from
one end thereof, means for admitting ñuid to
one of said bores, a chamber joining the inner
ends of said bores to enable circulation of iluid
from said one bore to the second bore, removable
closures for the outer ends of said bores whereby 30
the bores can be opened for cleaning them,
oblique bores extending into said bottom plate
low cap, so that when said cap is moved to open
the outer end of the passage the end of the roll from its side- edges, longitudinal bores extend-l
35 will project out of the passage and can be grasped ' ing into said bottom plate from its rear end and
» to pull the roll out of the pas-sage.
6. A «pressing device comprising a> body having
communicating straight passages extending
thereinto from one end of >the body, a closure for
40 the outer end of each passage movable to open
-said end, means ffor heating said passages,
means for admitting ñuid to one of said passages,
and means for discharging steam from another
of said passages, and a wire gauze J element
45 which occupies each passage and lis of a length
to project out beyond the outer end thereof and
is removable through said outer end when the
latter is opened.
,
_,
connecting with said oblique bores, a transverse
bore connecting said longitudinal bores and com
municating with said second bore in said body,
and steam discharge oriñces leading from’said
oblique bores to the face of the bottom plate.
10. A pressing device comprising a body and '
40
a bottom plate, a heating element between the
body and bottom plate for heating both, -two
straight bores extending into the body from one
end thereof, means for admitting fluid to one of
said bores, a, chamber joining the inner ends of
said bores to-enable circulation of fluid from said
one bore to the second bore, removable closures
7. A pressing device comprising 'a body having ‘_ for the outer ends of said bores whereby thev
bores can be opened for cleaning them, oblique
50 two straight passages extending thereinto from
one end of the body, a chamber joining the inner bores extending into said bottom plate from its 50
side edges, longitudinalbores extending into said
rends of said passages to enable circulation from bottom plate from its rear end and connecting
one passage to the other, a top cover for said
chamber movable toA afford access to the chamber
55 for cleaning it, a closure for rthe outer end of
each passage movable to opent-«said end, means
for heating said passages, means for admitting
fluid to one of said passages, and means for dis
charging steam from another of said passages,
60 and a -wire gauze element which occupies each
with said oblique bores, steam discharge orifices
leading` from said oblique and longitudinal bores
to the face of the bottom plate, a transverse bore
in the bottom plate communicating with said
second bore in said body, and bores extending
longitudinally in the bottom plate from said
transverse b'ore to said oblique bores.
,
FREDERICK J. CLARK.
55
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