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Патент USA US2412078

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Dec- 3, 1946-
Filed June 4, 1943
2 Sheets-Sheet 1
. L
D66- 3, 1946-
Filed June 4, 1943
'2 Sheets-Sheet 2
FIG. 2.
Fla" 3'
LEE R.Bovo.
Patented Dec._3, 1946 I
wAsnmo ArrAnA'rUs '
Frank Breckenridge and Lee E. Boyd, Mans?eld,
Ohi0, assignors to Westinghouae'Electrlc Cor
poration, East Pittsburgh, Pa" a corporation of
Application June 4, 1943, Serial No. 489,626
4 Claims. (CL 88-139)
Our invention relates to washing apparatus and
has for an object to ‘provide improved apparatus
of this kind.
A further object of the invention is to provide
improved motor-driven means ,for removing
' washing water from a washing machine.
. 2
stantially perforate throughout its extent, a few
of the perforations being shown at 26. A plurali
ty of vanes 21 are oircumferentially spaced with
in the basket 22 and extend radially inwardly
thereof. As is well understood, the vanes 21 are
employed for agitating the fabrics in a body of
washing water, the level of which is indicated by
the broken line ‘A, during rotation of the basket
A still further object of the invention is to pro
vide, in a power-operated washing machine, im
proved means for driving the washing machine
22, whereby a cleansing action is effected. The
and for removing washing water therefrom, which 10 front wall 23 is provided with an access opening
means is readily accessible for inspection or
28 which registers with the access opening I4 of
the tub. Preferably. the nozzle 2| is arranged
These and other objects are e?ected by our
within the access opening 28 of the basket, as
invention as will ‘be apparent from the follow
shown in Fig. 1, so that the water admitted to the
ing description and claims taken in connection 15 tub is directed inwardly of the basket.
with the accompanying drawings, forming a part
The basket 22 is supported by a shaft 29 which
of this application, in which:
is rotated during the washing period at a rela
Fig. 1 is a vertical sectional view of a cabinet ' tively low speed of, for example, 50 R. P. M.. and,
type washing machine constructed in accordance
during centrifuging of the fabrics, at a relatively
with our invention;
high speed of, for example, 475 R. P. M.. by means
Fig. 2 is a rear view of the motor and pump
of a two-speed mechanism, generally shown at
assembly shown in Fig. 1; and
3|. and carried by the rear wall I 2 of the tub. As
Fig. 3 is a perspective view of the front of the
construction and operation of two-speed
mechanisms are well understood in the art, no
Reference willnow be had to the drawings
further description of the same is deemed neces
wherein we have elected to show our invention
sary. It is understood, however. that the mech
applied to a washing and spinning machine of the
anism 3| is adjustable in order to select the
so-called oblique-axis type. In this connection,
speedat which the basket is to ‘be rotated. A
it will be understood that our invention may be
applied equally well to other forms of washers 30 suitable two-speed mechanism of the type shown
at 3| is shown and claimed in the patent of H. E.
whether or not centrifuging is carried into effect.
Edwards, Patent No. 2,284,047, granted May 26,
As best shown in Fig. 1, the washer includes a tub
structure generally indicated at It and of frusto
The two-speed mechanism is driven by a
conical configuration, in that it includes a front
wall ll relatively large in diameter and a smaller 35 grooved sheave 32 connected by means of a belt
33 to a pulley 34 driven by a constant speed elec
rear end wall l2 which are connected by a di
tric motor 35. The motor 35 includes a driving
verging side wall iii. The front wall ll of the
shaft '38 which supports the pulley 34 and the
tub is provided with an access opening II for
axis of which is substantially parallel to the
the ingress and egress of clothing to be treated,
which opening is closed by a suitably-hinged gas 40 oblique axis of the basket 22. The motor is car
ried by brackets 31 and 38 which are secured at
keted door structure IS. The tub I0 is provided
their lower ends to hub portions of the motor 35
with a drain opening l8 formed in the lower
in a well-understood manner. and which are sup
most portion of the side wall l3 and communi
ported by the tub structure Ill. Preferably. the
eating with a sump l1 fonned within a ?tting
I 8. Water for washing and rinsing the fabrics 45 bracket 38 is secured to the two-speed mechanism
3! and to the tub Ill.
is conducted to the tub l0 through a conduit I 9
The tub I 0. the two-speed mechanism 3| and
which terminates in a nozzle 2| arranged ad
the motor 35 define major elements of a unitary
jacent the periphery of the access opening I4.
structure which may be supported in any well
Arranged within the tub I0 is a basket struc
ture 22 which closely follows the lines of the tub 50 understood manner within an enclosing housing
generally indicated at 39. The unitary structure
structure It in that it includes a relatively large
may be fixed within the housing 39 or resiliently
front wall portion 23 and a smaller rear wall 24
suspended therein. As the mechanism for sup
which may be re-entrant, as shown. The front
porting the unitary structure within the housing
and rear walls 23 and 24 of the basket are con
nected by a diverging side wall 25 which is sub 55 39 forms no part of the present invention, it has
not been shown for the sake of clearness and
off to relieve the pressure on the clamp ll. which
' is then moved angularly sufficiently to bring the
The housing structure as includes a front wall
clamp 64 out of registry with the projections
ll having an upper portion 42 arranged in a
85, whereupon the clamp I4 and the cover I’! may
plane normal to the axis of the basket 22 and
be removed.
provided with an access opening 48 registering
Rotation of the impeller 52 is effected by a fric
with the openings l4 and 28. The opening ll is
tion wheel 66 carried by a stub shaft 81 and en
closed by a hinged cover 44 of any well-under
'gageable with a second friction wheel 8,. ?xed to
stood construction. The lower portion of the
the motor shaft It. Preferably, a resilient tread
wall ll is'provided witha relatively large open 10V I9 is provided on the face of the friction wheel
ing 48 for permitting access to the lower portion
60. The stub shaft 61 is iournaled in a bearing 1 I
of the housing is beneath the tub for servicing.
which may be‘ moved upwardly a su?lcient
The latter opening 45 is closed by a suitable door I
amount to disengage the friction wheels II and
n which may be hinged to the housing, as shown 68, whereupon rotation of the stub shaft C1 is
at 41 in Fig. 3.
15 terminated. The journal ‘H is carried by a lever
Washing water is discharged from the tub It
12 pivoted, as shown at 13, to the rear end of the
by means of a pump generally shown at 50. which,
motor 3!. Normally, the friction wheels 80 and
in accordance with our invention, is carried by
as are disengaged by means of a tension spring
the front end of the motor Iii. In this position.
‘ll, one end of which is fastened to the lever ‘l2
the pump III is adiacent the front end of the tub 20 and the other end to a ?xed member, such as a
where it is readily accessible for inspection or
projection 15, forming a part of the rear bracket
cleaning. In the cabinet type machine shown,
38. Engagement of the friction wheels I‘ and
the pump 50 is adjacent the service opening 45
68 is effected by means of a solenoid 18 carried
in the lower portion of the housing 39. As shown,
by the bracket 38, and the movable armature ‘ll
the pump is of the centrifugal type and includes 25 of which is connected to the lever 12, preferably
a casing H, the front end of which is open. and
by means of a tension spring 18.
which encloses an impeller 52 carried by a stub
The stub shafts 53 and 61 are connected by a
shaft ll. The latter is :Iournaled in a bearing 54
shaft member 8i having tongue and groove con
extending rearwardly from the casing 5|. The
nections 82 and 83 with the stub shafts 53 and II,
casing 5| includes a water inlet port 85 arranged 30 respectively. The shaft 8i may be formed of a
on the rear side of the casing and connected by
resilient material so that the axis of the stub
means of a suitable conduit 58 to the ?tting i8.
shaft 8‘! may be moved slightly out of align
Preferably, the conduit 56 is connected to a nip
ment with the axis of the stub shaft 53 when the
ple 51 which is carried by the ?tting l8 and the
friction wheels 68 and 68 are disengaged. It will
upper end of which terminates in the sump l1 35 be understood that the impeller I2 and shaft Il
above the bottom thereof.
may be'driven from the friction wheel Bl by suit
The outlet of the pump is shown at 58 con
able driving means other than that shown,
During the operating period, the solenoid ‘I6 is
nected to a ?exible conduit 59 which extends out
wardly of the casing I9. where it is connected to
energized when the discharge of vltiated water
a suitable point of discharge. As shown, the con 40 from the tub is to be effected. Accordingly, the
duit 6! extends upwardly along the rear of the
friction wheel 68 is moved into driving engage
housing 39 to a point above the level of the water
ment with the friction wheel 68 and the pump is
line A so that. when the tub is ?lled with water
rotated by means of a flexible shaft construction
8 I. Accordingly, water is drawn from the sump II
to the level of the line A, the pump and the lower
portion of the discharge conduit II are ?ooded. 45 on the tub I 0 and translated through the dis
charge conduit 59 to the point of discharge. At
Of course. at this time, it will be understood that
the pump 50 is inactive. The casing 5| is pro
this time, large objects which may be present in
vided with mounting lugs. one of which is shown
the basket 25, such as, for example, large size
buttons, book matches or nails, will usually be
at 6|. which lugs 6| are secured in any well-un
derstood manner to the front end of the motor 35. 60 retained in the tub inasmuch as the perfora
tions 28 are small enough to retain these articles
The front end of the casing II is closed by a
in the basket 25. However, any foreign matter
removable cover 82. which is preferably made of
which may pass from the basket to the sump I‘!
transparent material. so that the impeller 82 may
will usually be carried through the pump Ill and
be observed without removing the cover 62. Ac
discharged. However, foreign matter may'collect
cordingly. the accumulation of any material
in the pump casing ii at times and interfere
within the casing Ii around the impeller 52 which
with normal operation of the pump. If it is
may interfere with the operation of the pump
found that the discharge of water from the pump
may be readily seen without removing the cover
is below normal, the interior of the pump may be
II. In this connection. it will be understood that
we contemplate employing this ?uid discharge. 60 readily observed through the transparent cover
62. Also, the removal of any foreign matter col- '
system without the use of a strainer and. accord
lecting in the pump is readily effected by remov
ingly, lint or other foreign material may be passed
ing the cover as described heretofore, after which
from the tub to the pump, which material is or
access may be had to the impeller chamber and
dinarily discharged through the discharge con
duit 59 to the point of discharge. However, any 65 the inlet and discharge ports.
From the foregoing description, it ~will be ap
accumulation of material in the pump may be
parent that we have provided an improved wash
readily observed without dismantling the same.
ing machine employing a motor-driven pump for
Preferably. the cover 62 is maintained in en
gagement with the front surface of the casing Si
removing vltiated washing water from the tub,
by means of a thumb screw SI, the end of which 70 wherein the pumpis carriedby the front end of
bears against the cover 62 and which is threaded
the motor and defines a unitary ‘ construction
in a clamp N, the ends of which engage outward
therewith. In this location, the pump (may be
ly-extending projections 85 formed on the casing
conveniently connected to the drain of the tub and
8|. When‘ the cover 82 is to be removed, it will
is also accessible from the front of the washer
be understood that the thumb screw It is backed 75 for servicing or cleaning. when the washer is
enclosed by ahousing, the latter is provided with
including a casing and an impeller arranged with
a servicing opening in a front wall so that access
~ in the casing, a shaft for driving the impeller,
means supporting said pump at the front end of
to the pump is readily effected through said open
ing. The pump in the position shown is readily
driven by the main motor through the shaft ex
the motor with the axis of said impeller shaft
substantially parallel to the axis of the motor
tending rearwardly from the pump to the pulley
end of the motor. Accordingly, the motor and
shaft and to one side of the motor, Ilrst andv
second friction wheels carried by the motor shaft
separately from the washer structure, after which
and the impeller shaft, respectively, for driving
the impeller. and means for engaging and dis
ing water and having a drain opening formed in
ried by the other end of themotor for‘discharg
pump may be constructed as a unit and tested
the motor and pump may be assembled to the 10 engaging said friction wheels for respectively'
initiating and terminating operation of the. pump.
washer as a unit. The manufacture and assembly
3. In apparatus for washing fabrics or the like,
of the complete washer is thereby facilitated.
the combination of a housing having a service
While we have shown our invention in but one opening in a front wall thereof, a tub arranged
form, it will be obvious to those skilled in the art
that it is not so limited, but is susceptible of 15 within the housing for containing a body of wash
ing water, a perforate basket disposed within‘
various changes and modi?cations without de
the tub for containing the fabrics to be washed
parting from the spirit thereof, and we desire,
and movable about a generally horizontal axis, a
therefore, that only such limitations shall be
motor arranged beneath the tub and including a
placed thereupon as are speci?cally set forth in
the appended claims.
20 driving shaft having a pulley and a friction wheel
fixed thereto adjacent one end of the motor,
What we claim is:
power transmission means connecting said'pulley
1. In a machine for washing fabrics, the com
and the basket for driving the latter, a pump car
bination of a tub for containing a body of wash
the bottom wall thereof, agitating means ar-~ 25 ing washing water from thetub, said pump be
ing disposed adjacent said service opening, a
ranged within the tub for effecting a washing
shaft for the pump extending rearwardly there
action upon the fabrics, a motor for driving said
to one side of the motor, a friction- wheel
agitating means and arranged beneath the tub,
carried by the pump shaft and engageable with
said motor including a shaft rotatable aboutan
axis extending generally from the front to the 30 the ?rst-mentioned friction wheel, and means for
engaging and disengaging the friction wheels for
rear of the tub, a pump for discharging wash
initiating and terminating operation of the pump.
ing water from the tub‘ and including a casing
4. Inapparatus for washing fabrics or the like,
having an inlet port communicating with the
the combination of a housing having a service
drain opening and a discharge port, an impeller
opening in a front wall thereof, a tub for con
arranged within the casing, a shaft for driving 35 taining
a body of washing water and arranged
the impeller, means supporting said pump at the
within the housing, said .tub having a drain open
front end of the motor with the axis of said im
peller shaft substantially parallelto the axis of
the motor shaft and to one side of the motor, a
friction wheel rotatable with the motor shaft and
arranged at the rear end of the motor, a second
friction wheel for driving the'impeller shaft and
means for engaging and disengaging the first and
second mentioned friction wheels.
2. In a machine for washing fabrics, the com
bination of a tub structure containing a body of
washing water and having front and rear walls,
ing in the bottom thereof, a perforate basket
rotatable about an oblique axis and ' disposed
within the tub for containing the fabrics to be
washed, a motor disposed below the tub and
having a shaft arranged substantially parallel
to the axis of the basket, power transmission
means connecting the ‘ motor shaft and said
45 basket for driving the latter, a pump carried by
the front end of said motor for withdrawing water
from the tub through said drain opening and '
arranged adjac'entsaid service opening, a shaft
said front wall including an access opening, a
for driving the'pump and extending rearwardly
perforate basket disposed within the tub structure 50 therefrom to one side of and generally parallel
for containing the fabrics to be washed and mov-.
to the axis of said motor shaft, and friction
able about a generally horizontal axis, a motor
wheels fixed, respectively, to the motor shaft
disposed beneath the tub structure for actuating
and pump shaft, and means for engaging and
said basket, said motor including a shaft rotat
disengaging said friction wheels when initiating
able about an axis substantially parallel to the
and terminating operation of the pump.
axis of the basket, a pump for translating water 65
from the tub to a point of discharge, said pump
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