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Патент USA US2346821

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. April 18, 1944.
w. M. clssx-:LL
» 2,346,821
Filed June 28, 1940
[email protected]
W0/ M [email protected]
Patented Apr. l18, 1944
william M. oissell, nw Louisville, xy.
v ' Application June 28, 1940, Serial No. 342,855
(ol. «aa-5)
s claims'.
valve interposed thereinl for facilitating servicing
This ~invention relates to improvements in a
steam humidifier-for use in connection with steam
of the apparatus.
cleaning and garment treating apparatus.
A suitable trap and drain is also included in
»the return line'connection near the steam con
densing chamber. However, if the steam is re
turned to the boiler under pressure, the trap may
be omitted, and replaced by a suitable check valve
installed in the steam return line near the steam
In- cleaning and pressing certain fabrics with
steam, -particularly Silks, velvets and woolens, it
is necessary to vary and to change instantane
ously the moisture content of the steam while the
fabric is under treatment to provide the most
effective and ¿eflicient cleaning and pressing
condensing chamber. '
A suitable foot pedal is installed horizontally
Therefore, one object of this invention is to
provide apparatus for varying and instantane
ously changing the moisture content of steam.
Another object of this invention is to provide
beneath the spotting board, and this pedal is con
nested, via chain 8, to levers Sand. Ill, which levers
actuate the dry steam valve II and moisture
' a simple and compact device having a foot pedal 15
control so that the hands of the operator are re
tained free for handling of the garment.
At one end of the spotting board, a combination
hanger and drip-cup for the spotting gun I4 is
installed, which cup has an outlet connection to
a suitable drain.
A further object of this invention is to provide
a co-acting valve assembly for controlling'simul
In operation, with the foot pedal depressed taneously the rate of ñow and moisture content 20 half-way, valve II opens anddry-steam is ex
of the steam.
hausted from the spotting gun I4, via hose con
The advantages o_f these and other objects will
become apparent as the following description is
read in connection with the accompanying draw
ing, in which
Figure 1 is a partial plan View of the steam
condensing chamber showing the arrangement of
the pedal-actuated control-valves on the head of
the chamber, and the pre-set regulatingvalves;
Figure 2 is a partial side elevational view show
ing the co-acting relation between the dry-steam
and moisture control valves actuated by the foot
pedal, and also the corresponding pre-set regu
nection 6. With the foot'pedal depressed _com
pletely, both valves II and I2 open, and wet
steam is exhausted from the spotting gun Il, via
the hose connection 6.
Pre-set regulating valves I5 and I6 are associ
ated with conduit 20 connecting the pedal-actu
. ated valves II and I2,~and these regulating valves
are adjusted to provide the desired mixture of
30 dry steam and moisture.
In operation, itis customary to cover the hori
zontal spotting board with a Turkish towel boot,
which boot absorbs the excess moisture >liberated
particularly in spotting silks and velvets. It is
Figure 3 is a partial'sectional view taken along 35 also customary to install these boots so that they
lines 3__3 of Figure 2 showing the construc
may be quickly removed and replaced, inasmuch
tional details of the steam condensing chamber
as they have been. found to be unnecessary when
and pedal-actuated control-valves.
y spotting woolens or heavy fabrics.l
The preferred embodiment of the invention
Through experience, the operator -soon learns
illustratedv in the accompanying drawing has 40 the correct way of holding the gun, and- the
found particular use in removing spots from
proper distance for exhausting either the dry or.
fabric garments and in treating the nap or pile
wet steam from the spotting gun I4 onto the sur
lating valves;
of fabrics.
face of the fabric.
For this use, the apparatus >is referred to as a
Ordinarily, the spotting gun. I4 is held in a
steam spotting-unit. or as amoisture-oontrolled 45 diagonal position when spotting silks and velvets.
spotting-unit, and the steam condensing chamber
and under no circumstances is steam released di
‘I illustrated in the accompanying drawing is in
rectly over the spot or straight down upon a silk
stalled in a vertical position at one end .of a hori- '
or velvet fabric.
zontal spotting board.
In spotting silks it has been observed that sat
The steam supply connection is made at 4, and
isfactory results are obtained when the spotting
this connection has a union and gate valve inter
gun il is held at an angle 4 inches above and
posed therein for facilitating servicing of the
The return line connection -is made at 5, and
this connection likewise has a union and gate
from 8 to. l2 inches` away lfrom the spot, which
angle is varied slightly Idepending upon the type
of material and dye used in, the fabric. This
Vrelation permits the steam'exhauste’d from the n
~ mamma u meeoinmeienuy. 'and um» enmi
nate any
bleeding of color.
From experience ‘the operator also learnsthe
correct amount of steam that may be released on
for the spot removing operation. However, in
each instance,- dry steam is used for ieathering.
of tbe regulating valves Il and it.
With further reference to the drawing it will
beobservedthateachvalve II and I2isactuated
fabric, andwhetherdryorwetsteamistobeused
the dry-steamexhauste'd from valve II. Thin,
the moisture` contento! tbe steam is greatly _in
creased, asdete'rmined bythe pre-set adjustment
. by a corresponding lever l and Il. As illustrated
inFigures 1and2,tbelever l ofthe dry-steam
valve is disposed above the lever Il of the mois
Likewise, water spots on synthetics, as usually
found on the linings of ladies coats, are removed 10 ture valve, and the levers are arranged so that
a movement of lever l half-down opens only the
quickly by applying dry steam.
dry-steam valve II, while a movement of lever
In spotting velvets, thespotting gun Il is held
l completely down depresses lever Il, and the in a similar diagonal position, at least 4 inches
moisture valve I2 is opened simultaneously with
above and from 12 to 18 inches away fromthe
spot. This relation prevents matting of the pile 15 the dry-steam valve I I.
As mentioned herelnbefore, and'illustrated in
of the velvet, and it is also customary to-employ
Figure 2, the levers l and'll are connected via
dry steam for feathering. d
chain I and link- 22 to a foot-actuated pedal
In spotting woolens, the spotting gun I4 is held
straight down and as close to the fabric as de
sired. Ordinarily, to break-down heavy spotsin 20 As further illustrated in Figure 3, each of the
valves Il and I2 are biased to their normally
woolens, a generous application of wet steam is
closed positions via> compression springs 22 and
necessary, ,which application is immediately fol
24. In this respect attention is directed to the
lowed with an application of dry steam for blow
fact thatthe construction of each of the valves
ing-oil' and removing excess moisture. When it
is found necessary to saturate the fabric, the 25 II and I2 is similar. Therefore, a description oi
valve I2 will sufllce for both of them.
saturated spot may be tapped with a chamois to
The reciprocating stem. of valve I2 has a coni
assist the removal of the excess moisture.
cal gate 2B nxedly secured to its inner end, which
gate 25 is adapted to register with a 'seat formed
For convenience, the nozzle of the spottinß gun
Il is constructed so that it may be used as a
spatula orr scraper.
Having _thug explained the general arrange
ment and operation of the apparatus, _reference
in the inner face of the removable head II for
closing communication between the conduits 2l
and 2|. As illustrated, a suitable packing 2l
'seals the reciprocating valve stem by means of
is now m‘ade to the drawing for amore detailed-_
a gland 21 and nut 28.
description of the construction ofthe essential
As particularly illustrated in Figure 2, a cradle
35 29 is adiustably secured to the outer face of head `
I! by means of a nut 2l, and the reciprocating
that the device comprises a vertically disposed stem is slidably Journaled in a cross arm 3l.
steam condensing chamber 1, which- chamber has
A. spring seat 321s ilxedly secured to the re
a connection to the steam supply line at l, and
ciprocating stem near its outer end, and a com
a connection to the steam return line at 5.
pression spring 2l reacts between the cross arm
An overflow connection I1 is provided in the
With reference to Figure 3 it will be observed
JI and seat 32, for biasing the valve I2 to its
bottom of the steam condensing chamber 1, which
_normally-closed condition.
connection is constructed and arranged so that
water II. formed fromcondensed steam, accumu
lates in the bottom of the steam condensing
chamber 1 to the level determined by the heiîh
of the overflow connection.
. arm of the cradle 2l, and is guided within the
forked construction of the opposite arm, and, as
hereinbei’ore mentioned, a depression of lever Il
depresses the reciprocating stem of valve I2, and
A removable head I! encloses the steam con
thereby opens same.
Eaclrof the regulating needle valves Il and Il
are constructed in accordance with customary
standards. Accordingly, a detailed description'
thereof is omitted, as it is believed that their con
densing chamber 1, and this headV has included
therein a dry-steam valve It and a moisture
The lever Il is plvotally secured at“ to one
A conduit 2l connects the outlets oix each of
the aforesaid dry-steam and moisture valves,
struction and application is readily understood
which conduit is intercepted by a hose connec
tion l, as illustrated in Fillllre l. Conduit 2l 55 upon examining the accompßnylnî drawing.
As hereinbefore mentioned, hose l connects
servesas a mixing chamber'.
the spotting gun I4, which gun has a discharge
As illustrated in Figure 3, a conduit 2I depends
noasle at 2l.
from the inlet ci the moisture valve I2, and this
From the foregoing description it will be ap
l‘x‘mduit extends well below the -levei of th'e water
parent that the construction and operation of the
illustrated embodiment has many new and novel
Each outlet of the aforesaid dry-steam andl
moisture valves II and I2 is provided with a guit - features. Therefore, it is to be understood that-
able needle-valve Il and Il, for regulating the de
sired mixture of dry-steam and moisture.
, Thus, steam entering at 4 partially condenses,- 65
andthe condensate Il formed thereby, along.
with any other condensate present in the steam
received in the chamber, accumulates in the bot
tom of the steam condensing chamber 1.
Opening valve ~ II only, exhausts dry-steam 70
from the top portion oi' the. chamber 1, while si
multaneously opening each ofthe valves II and
I2 syphons water from the bottom of the cham
ber 1, which water atomises in passing through
the iets of valves I2 and Il, andis mixed with
bythe scope of the appended claims.
Having thus described the invention, I claim:
i. In apparatus for treating and cleaning fab
ric materials, the combination of a mixing cham- -
ber, an inlet connection to said chamber from a
source of steam, an inlet connection to 'said
chamber from a source of water, a spotting gun,
an outlet connection for supplying steam from
said mixing chamber to said spotting gun, a nor
mally closed valve in each of said inlet connec-è
tions. an actuating member for each valve, an
operating member common to said valves, and -`
, .2,346,821
Y operating connections from said operating member to said actuating members, and means in the
operating connection of the water valve provid
ing a predetermined lost-motion to eñect opening
quired moisture content from a mixing chamber _
having an inlet connection to a source oi steam
and a second inlet connection to a source of wa~
ter, the combination of a normally closed valve
in each oi' said inlet connections, an actuating
to permit opening and closing of the steam valve
member for each valve, an operating member
alone when said operating member is operated
common to said valves, and operating connec
through distances not exceeding the lost-motion
tions from said operating member to said actu
provided in the operating connection to said wa
ating members, and means in the operating oon
ter valve, whereby steam of varying wetness is 10 nection of the water valve providing a predeter
supplied to said gun.v
mined lost-motion to eiIect opening of the steam
2. Apparatus according to claim l wherein said
valve ahead of the water valve and to permit
lost-motion connection provides for the closing
opening and closing of the steam valve alone
of the water valve ahead of the closing of the
when said operating member is operated through
steam valve.
distances not exceeding the lost motion provided
3. In apparatus for treating and cleaning fab
in the operating connection to said water valve.
ric materials with wet and dry steam wherein a
of the steam valve ahead of the water valve and '
spotting g'un is supplied with steam of the re
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