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Патент USA US2137775

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Nov. 22, 1938.
Filedmay 16, 1950
2 Sheets-Sheet l
30 ' James B‘ Kirbs
Nov. 22, ‘1938.
Filed May 16, 1930
2 Sheets-Sheet 2
James- B\ 143.2195
Patented Nov‘. 22, 1938
_ 2,131,715
LAUNDRY MAcnmaANp mn'rnop
James B. Kirby, West Rich?eld, Ohio, assignor,
by mesne assignments, to The Apex Electrical
— Manufacturing Company, Cleveland, Ohio, it
' corporation of Ohio, as trustee
Application May ‘16,1930, Serial No. 452,957
'25 Claims. (01. 3-13?)
This invention relates to laundryimachines, by
tion 6 above the compartment B, each of these
which term I mean to include "clothes washing web portions slanting inwardly vand downwardly
from the rim to the apertures ‘I, 8, respectively,
and liquid extracting devices, and has for its ob
ject the provision of new, improved, and simpli- . and preferably formed with a single, up-standing,
?ed driving means for operating either or both a marginal ?ange 9 surrounding both apertures. 5
washing element‘ and an“ extractor element.v
Heretofore it has been customary vto operate
The aperture 1 is providedv with a cover Ill by
whichthe same may be tightly closed, and the
washing and extracting machines by the use of
electric motors, the power ofathe motor being
communicated to the mechanism by way of suit_-'
able gearing or mechanical movements, excepting
that in my application Serial No. 371,544, ?led
June 1'7, 1929, which matured on October 24, 1933,
'Iinto United States Letters Patent No. 1,932,246, I
described certain ‘illustrative machines wherein
this transmission ‘of power was e?ected by means‘
of fluid pressure mechanism. An important’
aperture 8 is ‘ likewise provided with a cover II
ment and contains the washing element, which
in the present embodiment consists of a dasher
or liquid agitator dolly. l2 oscillatable about a
vertical axis and having a plurality of wings or‘
vanes l3 which may be of any desired conforma- 15
tion, and preferably also terminating in a circular
disk I4 adjacent the bottom of the compartment.
‘characteristic of the present invention is that
Carried by the casing-bottom beneath'this dasher -
this power is transmitted by pneumatic means,
and an illustrative embodiment of my invention
is ‘shown in the annexed drawings, although it will
by which it can be tightly closed.
The compartment A is the washing-compart- l0 .
or washing element, which‘ispreferably hollowed
out somewhat for the'purpose, is the operating 20'
element which consists of a reciprocating pneu
In the form here shown this com
prises a casing having a cylindrical wall IS with a
be understood that these are not intended to limit ~ matic motor.
me tothe particular features of construction ‘il
lustrated therein, either as (regardsthetypes of , ?at top l6, and a ?at removable bottom plate l1.
washing apparatus or the presence or nature of
Journaled in the top and vbottom is a vertical 25
the extractingapparatus or the detail construc- - rock-shaft 3| havingat its‘ upper end a ?uted
tion pf the pneumatic apparatus.
v\head I8’ which tightly vreceives‘a suitable socket
In these ‘drawings Fig. 1 is a sectional view viof the dasher in supporting andoperating re1a—>
corresponding to the broken line ‘l-I of Fig. 2; tlon.. Carried by the side of this shaft inside the
Fig. 2 is a horizontalsectional view corresponding motor-casing is a rigid blade 20 adapted to sweep 30
back and forth past the wall l5; and formed at
to thebroken line ‘2+2 of Fig.1; Fig. 3 is a hori
zontal sectional view corresponding to the line »one_side of this casing is a radial partition 2|
3-3 of Fig; 1; Fig. 4 is a vertical sectional‘view' which is'here shown as having a considerable
corresponding to the line 4—4 of Figs. 1, 2, 3 and angular extent.
Carried by-thebottom plate 2 is an air pump 35
‘5; Fig. 5 is a sectional view corresponding tothe
line 5-5 of Fig. 4 and lookmgupwardly; Figs. 6 ' , 24, and connected to said air pump in driving re
and 7‘ are detail views of the samemechanism as ' lation is an electric motor 25. The particulafair
shown in Fig. 5 but illustrating the position as
sumed thereby at different stages of itsoperation;
\ Fig. 8 is a'sectional view corresponding to'the
pump here shown comprises two complementary
irotor elements 26, located sidev by side on’ parallel
shaftsand forced to rotate at equal speed by in- 40
This pump will pro
duce a motion of the air therethrough» in either
line 8-8 of Fig. 3; and Fig. 9 is an enlarged hori- ‘ - termeshing ‘spur gears 21.
zontal, sectional view, taken on a line just below
the bottom of the extractor container to show the 1 direction, depending upon 'the'direction of rota
. details of the extractor driving turbine;
, ’
The particular washing machine chosen for the
tion, but in the present embodiment is assumed
to be rotated in a direction to deliver positive 45
Hexempli?cation of my improvements comprises
pressure to the valve 28, whence it is delivered
two‘ separate 'compartmentsA and B. The com
- either to the washing element, or to the extracting
partment A. in .the present embodiment'consists
element depending upon the position of the valve
member 29, whichis determined by a handle v3i’!
base plate 2, and the compartment B consists located above the ‘top plate, It will be obvious 50
oi’ asecond, smaller casing, 3, set-on the same 7 to those skilled in the art‘that many other types
base plate 2, the '7 whole supported by legs vI. of pump could be'used or ‘that this pump could
of a cylindrical, sheet-metaL'casing I set “on a
Ti htly secured to the upper ends of the casing
wa ls is ahorizontal top plate having a web por
5 ‘tion 5 above the compartment A and a web por
be rotated in a direction to produce negative pres- I
sure, provided only that certain well known
changes in. valves and vpiping were made. I ?nd
some practical advantages in the use of positive
pressure, but many of the advantages of my im
provements can be enjoyed by the
of negative
pressure so that I do not‘ limit myself except
the movement of the button which, (by the inter
action of ?ngers 33 and 30', shifts the valve head
38 from the position shown in Fig. 6 to that
shown in Fig. 7, and the motion of the blade 20‘
where special considerations exist.
To convert the pneumatic pressure produced .
by this pump (whether. greater or less than at
mospheric)” into an}, oscillatory motion of the
shaft 3| requires the employement of a proper
valve mechanism, many examples of which are
known. The particular mechanism I have shown
in this application is taken from a commercial
pneumatic motor device and thefollowing de
scription of its construction and mode of oper
ation is given solely to render my application
technically complete and not because this ,par
ticular valve-mechanism constitutes a part of
my invention or has any particular advantage
as compared with numerous other valve-mechv20 anisms that can equally well be employed.
Secured to the bottom face of the bottom plate
I1 is a second hollow casing 32, which may be
is reversed.
Obviously provision could be made to discharge
the waste air outside vof the casing, ‘(for example
by removing the screw 5i, Fig. 4) which change
would also enable the use of negative instead
of positive pressure. But my preference is to 10
make this dasher in the form of an imperforate
air-bell and allow the'wasteair to escape be
neath its rim i3. This construction serves to
maintain the water level around the casing i!
always below the shaft bearing and dispenses
with the need of any packin’g. In order to pre
‘vent escape of the washing liquid through the
pneumatic system in case the ?asher be removed
before the liquid, or the casing ?lling before in
troducing the dasher, the top of, the casing is 20
preferably provided witha loose rubber ?ap 32
called a valve casing since it houses the valve
to During
act as the
a check
valve. of the“
, pneumatic
I motor
' mechanism. Formed in the partition 2| are three
the dasher is driven with a'reversely rotary move
ment and the vanes i3 of the dasher throw the
spaced ducts 33, 33133. Duct 33 opens through
the plate l1 and‘ extends to the top of the
casing l3, (see Fig. 4) while ducts 33 and‘ 35
traverse the plater I1 and ‘then open sidewise'
through'the opposite faces of partition 2| as
‘shown_ in
Figs; 3 and 8.
The bottom end‘ of’
shaft 3| is reduced in size as shown at 33 and
liquid in ‘the tub outwardly therefrom 'where-'
upon it flows in a turbulent manner'back to the
source of agitation, this cycle being repeated
continuously as is customary in machines of the
type employing an oscillatable dasher of the 30
type disclosed. During the'time the liquid in
also projects through the plate vl1 where it ‘is [the tub is thus mechanically circulated. the air
surrounded by a valve arm ‘31 having at its free escaping from around the edge of, the disk i3
end a head '33 which‘is hollowed out under
bubbles upwardly through the moving liquid,
, neath (as shown
at 33 in Figs. 4 and 8) so'as to
connect the duct 33 to either ‘of the ducts 33 or
33 depending upon the position which said head
aerating the liquid and articles being washed
and at the same time providing a second means
for agitating the liquid contents of the tub. The
occupieathe other of said ducts meanwhile open- ~ escaping air also prevents the articles being
ing directly into the valve casing 33. The oppo
40 site end of the arm 31 iseextended to produce washed from working underneath the ?asher. "
two spaced ?ngers 33.‘ Pivoted on a ‘stud 3| at -a suitable outlet
connectioniattl'ie bottom ‘or’ ‘
one side of the extension 33 is a button 3!,hav
. ing one oi’ its “ends bent vertically to constitute
extremity with‘ a goose-neck 33
a ?nger 33 which projects between the ?ngers to be hooked over the rim-of-a ‘adapted either‘ ' '
33-’33. The opposite end of said button is bent
in the opposite direction to form a ?nger 33 to
‘which is attachedv a spring 33. The arm 31 is
iournaled on the extension 33 so as to be readily.
movable about the axis thereof. ‘Tightly secured
to the end of this extension 33 is a plate 33
or greater angular extentr than the partition 3|
and so located as to swing in a plane which
shall bring it into contact ?rst with one face
and then with the other face of the ?nger 33.
Arsuitable hook at is‘carried by this plate and
one end of the spring 33 is attached thereto. A
spring 33 is also shown as interposed between the
plate 33 .and arm 31 for the purpose of holding
the valve head 33 in sliding contact with the
51 or' to be supported by'the
3rof'the top :45',
plate.‘ The web 5
provided with
\ ture 53 for the escape offthe'waste air, and
' '
a‘ plug 59 is provided by ‘which this'aperture
can be closed, whereupon ‘.‘the entire liquid con-' tents of the casing 'are expelled through
hose, which isone of the-incidental advantages
of positive pressure over negative pressure.
Mounted in the compartment 13 is the com
tainer element 63 ,of a centrifugal extractor.
This'in the‘ present embodiment is rotatably
mounted upon a rigid studgii projecting up,
wardly from the bottom of the compartment‘.
Carried by the. bottom'of this container are a
plurality of' turbine blades or vanes 33, and
_ mounted in the lower part of this container are
. .L The valve 23 being pr‘operl'yuset and air un-', suitable nozzles 33, here‘shown as two'in
der pressure being conveyed from the pump 23 adapted to impinge upon said‘ blades the pressure
to'the casing 32 byway of the pipe 39,‘this air
will pass through the open port, (such as port
fluid which issues therefrom. I have shown‘ the
bottom of the ‘container as provided with seg
33 in Fig. 5) to the interior of the: casing,l3 mental shields 33 covering those blades which
and force the blade 33 in the appropriate direc: are nearest the respective nozzles. This ability
tion. while‘ the‘air at the other side of said\ to drive an extractor is another advantage oi’
blade escapes into compartment A by way of using ‘positive pressure.
duct 33. This motion proceeds until the plate
It-is my preference to locate the respective
'70 33 is brought into contact with the ?nger 33 ‘pneumatic motors wholly inside ‘the respective
. as shown in Fig. 6 and onward, carrying button compartments and therebydkispense with the ne 70
33 until (by the movement of the button in one cessity of having any moving part projecting
direction and the hook 31 in the opposite di ' through the bottom of either compartment. vIn
rection) the spring 35 has been carried past the this way leakage of liquid is prevented. Acci-'
post 3i, whereupon the spring quickly completes “dental leakage of liquid through the no'zzle'33 is
' anemic
prevente‘d by forming goosenecks 65 in the pipes
which shallconstitute air-traps.
A drainage hose 66 is connected in communi
cating relation with the bottom of the compact
ment E1.
The end of this hose is bent in‘ a goose— ,
articles to be washed‘ freely-suspended in the
cleansing liquid as they are/circulated therewith,
and means for forcing a gas through thecon
tents ofsaid container.
4. In a washing machine, a container for liquid
and articles to be washedan agitator oscillatable
about a vertical axis- and extending upwardly
from, the bottom of said‘ container for creating
return the liquid thereto. The cover ll being violently ?owing currents’ oi .movement oi the
closed, and the web 6 imperiorate, as it is, the tub contents away from and heel; to the source
‘air pressure collecting in the container Elwin of agitation while at the same'time maintaining
very shortly expel the entire liquid contents the articles to‘ be washed freely suspended in the
thereof through this hose. Not until these liquid » cleansing liquid as they are circulated therewith,
contents have been expelled ‘will rotation‘ of the and gaseous means for effecting the eloullition oi‘
neck t‘l adapted‘ to "be hooked either over the
rim all of the waste sink or into the aperture 5iv
or" the compartment A in case it'be desired to
container tt commence, which constitutes a very
. satisfactory safe-guard against injury to the
operator, since a certain amount of liquid is gen.
the liquid contents of said container.
' 1
ii. in a laundry machine, a container adapted
to hold liquid and articles to he washed, a cen
_ erally carried’ over into this compartment from . trally disposed, varied‘ clothes washing element
inside said container and spaced inwardly a sub
stantial distance fromthe side walls of the con
tainer so as to deline a space for the ‘circulation
until the cover ‘ll has been closed, whereupon of the liquid and the articles helng washed,
the liquid lying in the bottom of compartment B means comprising a pneumatic expensibie=cham~
her type motor ior driving ‘said clothes washing
is first discharged, after which the rotation com
element in a to-and-fro manner, the operating
25 mences and high speed is easily obtained.
Owing to the large area of the covers it and it ?uid oi said motor exhausting into the lower. part
catches iii are ‘desirable to prevent their ?ying of said container and assisting in the washing
operation, and means for supplying a ?uid under
open. This mode of liquid election is tooth sim
~ .
‘ '
pler and more satisfactory than any liquid pump pressure to said motor.
(i. in a laundry machine, a container adapted fill
since neither suds nor lint can impede it and
since this air pressure evacuates the entire hose to hold liquidlani'l articles to he washed, a cenn '
as well as the casing, leaving no liquid residue to ‘trally disposed, vaned clothes washing element
the washing compartment, and even though the
2139 valve it he set as shown in Fig. l, rotation of
' the container til ‘will not ordinarily commence
freeze or decompose.
The reason for employing \"therein spaced inwardly a substantial distance
a hole ‘iii and plug ‘it is to prevent the uninten_—, ' iron-i
define the
a space
side walls
for the
oi circulation
the container
of the
so liquid
tional ejection of the liquid contents.
‘it will he understood that I do not limit my» and the articles being washed, means compris~
self to the type of washing element herein shown ring a pneumatic enpansihle-chamber type motor
since iiuid pressure operating mechanism can to-and-i'ro
for driving manner,
said clothes
the operating
of in
he applied to other types; and I do notlimit my»
seli‘ to laundry machines having extractors, nor motor exhausting into the lower part of said
do i limit myself to the type oi" ?uid pressure ' container and assisting in the washing operation,
pump here showrnnor to the type of ?uid'pres» and means carried loy said machine ior coinpressing and supplying the operating iiuid of said
sure motor, nor to the use of air as a working
fluid nor in any other wise eirceptas speci?cally
recited in my several claims which ll desire may
to hold liquid and articles to he washed, a cena '
limitations contained in other claims.
trally disposed, vaned clothes washing element
‘I’. in a laundry machine, a container adapted iii
be construed separately, each independently of
Having thus described my invention what ll
spaced inwardly a suhstantial distance from the
side walls of the container so as to de?ne a space
l. in a washing machine, a liquid holding cas-' for the circulation of the liquid and the articles till
ring, a pneumatic motor inside said casing near . being washed and a pneumatic expansihle-cham
the bottom thereof, said motor having a vertical her typemotor for driving said element in a to
and-fro manner both located inside said container
shaft, a supply pipe for air under pressure trav
ersing the casing bottom and connected to said and operatively connected together, theoperat~
ing ?uid of said motor exhaustinginto the lower
motor and an agitating element operatively con
part oflsaid container, means for supplying a
nected to said shaft, said agitating element hav
ing itsv lower part hollowed out for said motor fluid under pressure to said motor, and a valve
and said motor discharging its waste air into controlled connection between said means and
said pneumatic motor.
said hollowed-out portion.
.- “
2. in a washing machine, a container for liquid . . t. In a washing machine, a liquid containing 60
and articles to be washed, impeller means oscil— casing, an air pressure-driven expansible-cham
' latahle about a vertical axis for creating ‘violently
flowing currents of movement of the tub contents
her type motor located inside said casing, a cen- '
trally disposed, varied liquid agitating element
away from and back to the source' of agitation operatively connected to said driving mechanism
and spaced inwardly a substantial distance from
65 while at thei'same time maintaining the articles ‘ the side walls of said casing so as to de?ne a
to be washed freely suspended in the cleansing
liquid as they are circulated therewith, and means space for the circulation of the liquid and the
articles being“ washed, said air pressure-driven
motor exhausting air into-the lower part of said
d. In a washing machine, a. container ,for liquid casing and assisting said element in agitating the 70
liquid therein, means carried by said machine
and articles to be washed, impeller means oscil
latable about a vertical axis for creating violently - underneath said casing to create the‘ air pressure’
'to operate said mechanism and element, and sta
?owing‘ currents of movement of the tub con
for simultaneously aerating the contents of said
tents away from and back to the. source of‘ agi-'
tation while at the same time maintaining the
tionary conducting means for air under pressure ’
traversing the casing bottom and connecting said 75
pressure creating means
said pressure-driven
direction opposite to the movement of the in
through the container contents whereby the fabric
9. In a washing machine, a liquid‘ holding cas
articles are at all times freely suspended in the
ing, a fluid pressure motor inside said casing and detergent
liquid and washed while so suspended. .
?xedly secured to its bottom, said motor having
15. In a domestic washing machine of the class
a vertical rock-shaft, an agitating dasher se
cured to and carried by said rock-shaft, said described, including a tub for containing water
dasher having a hollow bell-shaped base spaced, and clothes to be washed, an agitator [within the
above and surrounding said motor, the rim of said tub rotatable on a vertical axis and having/a
10 base closely approaching the tub to prevent the, downwardly ?ared portion adjacent the bottom
articles being washed from working thereunder, of the tub for agitating the water and clothes, 10
and a ?uid-pressure supply pipe traversing the ‘pumping mechanism mounted on the machine,
casing bottom and connected to said motor.
v. means connecting the pump with the interior of
10. In a washing machine, a tub, an agitator the agitator for introducing gas thereto, and
15 therein comprising a’ dasher having a circular ‘ means providing for the escape of the gas from
hollow base and blades extending above the same,
in combination with a ?uid pressure motor lo
cated inside said base in spaced relation there
to andhaving a shaft operatively connected to
said agitator. and means for securing said motor
to the bottom of the tub with said blades pro
jecting above and outside the same, the base of
said dasher closely surrounding said motor ‘to
prevent cloth ‘articles in the tub from wrapping
the agitator into the body of water.
16. In a washing machine, a casing for liquid
and articles to be cleansed, an agitator mounted
for oscillation about a vertical axis and having a
base, the lower margin of which approaches the
tub bottom, and means discharging air beneath
the base of said agitator.
_ 17. In a washing machine comprising driving
power means, the combination of a tub for con
about the shaft of saidwmotor during the opera-\ taining a cleansing liquid andlmaterials to be
washed, 8. liquid agitator dolly, mechanism mount
11. A laundry machine having av compartment ed in said tub adjacent the bottom thereof ”driven
by said power means for oscillating said agitator
for clothes and washing ?uid, an expansible
chamber type pneumatic motor with a to-and-fro' dolly, )said agitator dolly having means whereby,
moving driven element inside said compartment when the same is oscillated, air is simultaneously
tion of the machine.
and‘ having an outlet port for waste air dis-, emitted therefrom into said water while the water
charging into said compartment, a pneumatic is forced laterally ?rst in one and then in an op
pump outside said compartment. and operatively . posite direction toward the interior of'the tub, so
connected to said motor, an oscillatably driven that the materials being cleaned willwbe circu
lated by the movement of the water and the
vaned agitator inside said compartment and oper
atively connected to the driven‘element of said aerated water forced towards, through and
pneumatic motor, said motor exhausting into the around the materials to cleanse the same, and
lower part of said casing and assisting in the means to'supply said air to said agitator dolly.
18. In a washing machine, a tub havingbot
washing operation, and an electric motor outside
said compartment and operatively connected to tom and side walls, a bladed agitator, instrumen
talities for movably mounting the agitator in the 40
said pneumatic‘ pump.
12. The method of washing clothes and other tub and for actuating the same in a horizontal
fabric articles in a liquid container which com-' plane in immersed relationship to the water in
prises immersing the articles to be cleaned in a the tub to impel the water outwardly towards the
detergent liquid in the container, and aerating side of the latter, a forced air supply having a
the container contents while at the same time discharge passage to permit emission of air in
creatingviolently ?owing currents in the con; immediate adjacence to the agitator to com
tainer moving away fromand back to a source of mingle with the water agitated thereby.
19. In a clothes w'
ng machine, a tub for
agitation and ‘a, source of aeration continuously
~ and rubbing and scrubbing the clothes as they are water and clothes to be washed, a dolly adapted
circulated'whereby the fabric articles are at all
water in the tub, means, .
times freely suspended in the detergent liquid and for actuating‘the dolly to correspondingly agi
washed while so suspended.
13. The method *of washing clothes and other
55 fabric articles in a liquid container which com
prises immersing the articles to be‘ cleaned in a
‘for discharging air near the bottom of the dolly
into said agitated water and clothes.
detergent liquid in the container, and bubbling a
20. In a washing ‘machine, a tub, a winged
gas in the container contents while at the same dolly adapted to be submerged in the water in the
time creating violently ?owing currents in the‘ tub, means for actuating the dolly in a horizontal
container moving away from and back to a source direction to correspondingly ' agitate the water 1
of agitation and a source of aeration continuously and move its contents, and means for discharging
and rubbing and‘ scrubbing the clothes as they ‘ air outwardly from the dolly into said water and
are circulated whereby the fabric articles are at towards said contents. .
all times freely suspended, in the detergent liquid
and washed while so suspended.
‘ v
21. In a ‘clothes washing machine, a tub for
water and clothes to be washed, a winged dolly
14. The method of washing'clothes and other ‘ adapted to be submerged in the water in the tub, 65
means for actuating the dolly in a horizontal
fabric articles in a liquid container which com
prises immersing the articles to ‘be cleaned in a plane to correspondingly agitate the water and
detergent liquid in the container, and aerating the move the clothes immersed in the water, and
container contents ‘while at the same time creat-' , means for forcibly discharging air into the lower
‘ing violently ?owing currents in the container portion of said tub adjacent to said dolly so that
ghdflyair tends to urge the clothes away from the
moving away from and back to a- soui-ce of agita- '
tlon and a source of aeration continuously and
rubbingand scrubbing the clothes as. they are
circulated, certainvof such currents being in a,‘
22.” In
' water
. lower
a clothes washing machine,v a tub for
and clothes to be washed, a dolly in the
portion of the‘ tub and an air conduit 75
2,187,775 ,
adapted to discharge at a point-in adjacence to maintaining the dolly in position near the bottom
of the tub, and an air supply ‘means arranged
'the dolly, means for actuating the dolly to corre
spondingly agitate the water and ‘clothes, and to discharge air into the water from a point in
'means for forcing air through the air conduit close proximity to the dolly and at a substantial
and within said agitated water and clothes.
distance below the: top thereof.
23. In a washing machine, a tub, anvosclllat
ing winged dolly formed and arranged to be sub
washing ?uid and clothes, 'a vaned agitator
merged'iniwater in the tub, and 'an air supply
means arranged to discharge air into the water
10 from a point located within a zone de?ned by
the- bottom of the tub and a horizontal ‘plane
through the upper edge of the dolly.
24. In a washing machine, a tub, a horizontally
‘oscillating winged dolly formed and arranged to
15 be submerged in water in the tub, means for
25. In a clothes washing machine, a tub for
' mounted in said tub for oscillation about a ver
tical axis, the bottom of said agitator being ad
jacent to the bottom of the tub, and means for 10
discharging air into the washing ?uid from a
point adjacent to the bottom of-the agitator and
radially outwardly of the outermost portion
JAMES B. may’.
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