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Патент USA US2133234

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Oct. 11, 1938. l
w. K, Voss
LAUNDRY
71
I
2,133,234
MACHINE
- Filed Dec. 8,
ll
f
‘
1932
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2 ‘Sheets-SheetÀ 1
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Patented oet. y11, 193s
2.133.234 '
PATENT OFFICE
UNITED STATES
K
2,133,234
LAUNDRY MACHINE
Walter K. Voss, Davenport, Iowa.
Application December 8, 1932, Serial No. 646,247
15 Claims.
(ci. «ss-#253)
invention, the lWringer mechanism and associated
4parts being shown in vertical section».
The invention relates generally to laundry ma
chines and the general aim thereof is to provide
Fig. 2 is a top plan view of the wringer and as
such a machine as will have a maximum factor
of safety in the operation of the wringer mecha
l)
nism.
sociated parts.
'
Fig. 3 is a vertical transverse section through Ul
one end of the wringer, taken as indicated by the
line 3--3 of Fig. 1.
Fig. 4 is a side elevation of the circuit breaking
mechanism on an enlarged scale, the enclosing
-
An object of the invention is to provide, `in a
laundry machine embodying wringer mechanism,
novel means for releasing an operative pressure
between the wringer rolls and instantaneously
10 discontinuing driven movement of said rolls.
I 10
casing being in section.
Figs. 5 and 6 are side elevational views of wring
in which an actuator is effective, upon either er mechanisms> embodying modified> forms of
actuators.
. push or pull movement, to relieve the roll pres
Figs. 7 and 8 are end views of the modified
sure and discontinue the driven movement by
breaking the power circuit to the prime mover.` forms of wringers shown in Figs. 5A and 6, respec
,
In conjunction with the foregoing, another ob- - tively.
Fig. 9 is a sectional view of the circuit breaking
ject is to provide a positive, mechanical connec
mechanism and is taken along the line 9_9 of
tion between the actuator and the circuit break
ing device vwhich is releasable _instantly upon Fig. 4.
20 movement o_f the actuator, and may not be acci
While the invention is susceptible of various
dentally nor permanently reestablished prior to modiñcations and alternative constructions, I
the resetting of the pressure release mechanism. have shown in the drawings and will herein de
A further object resides in the provision of a - scribe in detail the preferred embodiment, but it
laundry machine embodying a wringer having a is to be understood that I do not thereby intend
roll-pressure release mechanism and a circuit to limit the invention to the speciñc form dis
breaking device, both of said parts being operable closed, but intend to cover all modifications and
alternative constructions falling within the spirit
by a single actuator, each requiring separate ma
and scope of the invention as expressed in the
nipulations or acts on the operator’s part to re
Another object is to provide a novel structure -
condition the parts for operation, and having
such relationship that placing and holding the
circuit breaking device again in operative .condi
tion must invariably follow resetting of the re
appended claims.
In the drawings a preferred form of laundry
machine has been shown merely for illustrative
purposes. Laundry machines usually embody, in
addition to a wringer mechanism, a tub for wash
lease mechanism.
.
_ More specifically stated, an object is to provide ing fluid, an agitator therein and a prime mover
or driving motor for the agitator which motor
a wringer having safety release mechanism asso
ciated therewith and a circuit breaker in the . customarily serves to drive thewringer mecha
nism as Well. Of these parts it is deemed neces
power circuit to the prime mover, said mecha
nism including an impact member eiïective upon sary, for the purpose of disclosing the present in\
movement from a normal “set” position to re
40 lease the operating pressure on the wringer rolls,
said circuit breaker having a. partmechanically
engageable with said impact member only when
said member is in its normal position and spring
urged for movement when released from said en
gagement to break the circuit and to assume a re
mote position precluding the possibility of acci
dental reengagement and from which it may only
Abe returned by a positive, intentional act on the
5 o part
of the operator.
5
vention, to show only thewringer mechanism,
generally indicated at I0 (Fig. 1) and the prime
mover which is vdiagrammatically illustrated at
II as being an electric motor.
`
The wringer structure embodies a frame having
side stiles I2 and I3 connected by a base Il and a
' separable head or cross bar I5 arranged to fit
telescopically over the upper ends of the side
stiles. In the side stiles, which are channel
shaped, are lower half-bearings I6 resting on
fixed pins I1 in support’of the ends of a shaft I8
Other objects and advantages will become ap
which carries a lower wringer roll I9.` Also
parent in the following description and from the
mounted in the side stiles are upper half-bear
accompanying drawings, in which:
ings 20 which rest upon the ends of a shaft 2|
carrying the upper -wringer roll 22. A leaf spring
23 has its ends engaging the upper faces of the 55
Figure 1 is-a partially diagrammatic view of a
55
N',
laundry machine- embodying the features ofthe
2,133,234
bearings 20 and is carried by a suitable device 24 extends through correspondingly angular aper
on the head I5 for tensioning the spring »23 to tures in the side walls of the stile and for a sub
apply a yielding operating pressure to the rolls stantial distance therebeyond. -It is preferred
I9, 22 through the upper bearings. One of the that the rod have anormal central position to
wringer roll shafts (herein the >lower shaft I8) is ward which it is constantly urged by such means
power driven from the motor IIî through suitable as springs 4I) of equal tension, each bearing be
and conventional driving connections which in - tween one side of the stile and a central pin 4I
clude a shaft 25, a clutch (not shown) mounted extending transversely through the rod 39. Re
in the gear box 26, and a detachable connection gardless of the direction in which the rod 39 is
21, between the clutch' and lower roll shaft I8. moved longitudinally, one or the other of the 10
The wringer frame, as shown, is; rigidly supported springs 40 will exert a force for returning the rod
by a bracket 28 on the gear box assembly.
For relieving or releasing the operative pres
sure between the wringer rolls in an emergency,
15 means, usually termed a safety release mecha
nism, is provided and in the present embodiment
to its normal position.A The rod 39 carries a
ñnger 42 located externally of the side stile for
engagement with the upper end of the lever 38
when the rod is in its normal position.~ This 15
engagement between the finger 42 and lever 38 is
the mechanism preferably embodies an actuator
effective to4 hold the catch device 34 in engage»- _
for effecting operation of the mechanism and
means for preventing return of the actuator to its
20 normal or starting position until the mechanismis manually reconditioned or reset.
With par
ticular reference to Figs. l and 3, the safety
release mechanism in this instance comprises the
following arrangement of parts. A quickly de
25 tachable interengagement between one end of the
head and _its corresponding side stile is provided
which, in this instance, is in the form of inter
engaging shoulders 29 on the head I5 and side
stile I2 formed by striking out corresponding
30 portions from the respective members. 'I'he
other end of the head carries a depending latch
ing member 30 in the form of a U-shaped stirrup
which is pivotally secured as at 3I to the head
and is arranged to extend therefrom down
35 wardly into the corresponding side stile'I3 in
embracing relation to the bearings and shafts
which are disposed in that stile. The pivotal
connection 3| between the latching stirrup 30
and the head preferably includes horizontally
40 elongated slots 32 which permit of a limited hori
zontal shifting movement of the latching stirrup
relative to the head.
The base 33 of the latching stirrup is disposed
near the base I4 of the wringer frameand said
45 frame carries a catch device 34 which is movable
for engagement with the base of the ylatching
stirrup. The catch device_34 preferably. com
' prises a member of generally U-shaped cross
section positioned‘between the sides of the frame
base I4 and pivotally mounted thereon for move
ment on' a horizontal axis by such means as a
l stud 35 which extends through ears 36 on the
framebase and through suitable apertures in the
spaced arms of the catch device. The catch
device on its upper surface has a pair of trans
versely alined hooks 31 fashioned to engage the
base 33 of the latching stirrup. The arrange
ment with the base 33 of the latching stirrup as
shown in Fig. l. If, however, the rod 39 is shifted
longitudinally in either direction, the finger 42 is
lmoved out of engagement with the lever 38
whereupon the force exerted by the spring 23 is
effective to move the head and the latching stir
rup 30 upwardly thereby breaking the engage
ment between the catch device 34 and the latch
ing stirrup. Once this movement has carried the
head above the side stile I3, the head may move
horizontally a distance ample to disengage the
shoulders 29. These disengaging movements, of
course, are practically instantaneous and result
in a complete disengagement of the head from
the side stiles whereby entirely to relieve the
Wringer rolls from the pressure exerted by the
spring 23.
Means is provided for preventing an accidental
return movement of the catch device 34 and lever
38 once the holding engagements of these parts
have been broken. In this instance, such means .
comprises an upwardly extending arm 38EL which
is mounted between the spaced arms of the catcl‘. -
device 34 on the lever 38. The arm extends
through a suitable aperture 33a in the base 33
'
of the latching stirrup. Thearm 38a is of ample
length to engage the base 33 in all positions of
the latching stirrup relative to the side stile and 45
has an elongated surface 38b (Fig. 1) fashioned
for engagement with the base 33 by which the
catch device 34 is held out of latching engage
ment with the base 33.V Opposite the lowermost
position assumed by the base of the latching 50
stirrup, the arm is recessed, as at 38°, to allow the
latch device 34 to swing into latched engagement
with the base 33. Preferably, the surfaces 38b
and 38c are connected by a` sloping cam-like sur
face which >facilitates movement of the catch de 55
vice 34 to its inoperative position when the mech
anism is tripped. Accordingly, after the holding
ment of the hooks'3'l and their relationship to engagement of the catch device with the locking
the pivotal axis of the catch device 34 is such stirrup has once been interrupted, the catch de- ' 4
60 that the catch device, cf and by itself, 1s incapa- , vice must remain in its inoperative position until 60
ble of maintaining a holding engagement with the head has been reassembled with the side stiles
thev latching stirrup against an upward force to position the base 33 óf the latching stirrup op
exerted longitudinally of said stirrup. Since posite the recess 38°.
such a force is always exerted whenever the parts
As shownin Figs. 1 to 3, inclusive, reciprocation
65 are assembled and the spring 23 is under tension,
of the rod 39 to relieve the pressure between the 65
means is provided for holding the catch device wringer rolls is produced by actuators which are
' engaged with the latching stirrup. Thus, >one disposed for convenient manipulation by an op
leg of an L-shaped lever 38 is rigidly afilxed to erator.' Only one actuator need be provided, al
the arms of theÀ catch device in such manner _though two, located one on either side of the
' that, as may be seen in Fig. 3, the other leg of wringer, are preferable since most wringers are 70
the lever extends upwardly and externally of the
intended and arranged to receive clothes from '
side
either side. The preferred form of actuator com
stile.
y
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Approximately midway between the top and
bottom of the side stile is a horizontal rod 39 `-
which is preferably of angular cross section and
prises a- U-shaped member 43, the base portion
of .which extends between the side stiles in paral
lelisz'n with the 'wringer rolls and about on the 75
3
`areaassa.
line of the top of the upper wringer roll. The
legs of the U extend downwardly along the op
posite side stiles and, in this instance, are secured
to the wringer frame at their lower ends by means
of pivots 44 carried by brackets 45 on the frame.
As shown, an actuator is mounted adjacent each
side face of the wringer. At each end of the
frame, the actuators are connected by such means
as bars 46 so that the actuators move conjointly.
10 The ends of the rod 39 are arranged to engage the
adjacentvside legs of the actuators, as shown in
Fig. 3, whereby movement of either actuator
towardor away from the frame will shift the rod
39 longitudinally to release the lever 38 and there
15 by trip the safety release mechanism.
Figs. 5 and '1 and Figs. 6 and 8 show different
modified types of actuators for effecting the same
result. In Figs. 5 to 7, the U-shaped actuators
are indicatedl at 41 and at either end have up
20
wardly 'extending rods 48 through which the
through' the lever. The spring 61 exerts a force
at all times on the contact=59 tending to separate
the point 66 from the terminal 51.
The contact arm 59 is normally urged toward
engagement with the other side of the pin 69 by
means of a spring 10 which is mounted on the
lever 68 and bears between the arm and a pin
and washer 1|, 12 -respectively on the lever 60.
The spring 10 allows the contact arm to moveI
relative to' the lever 60 after the point 66 has 10
engaged the terminal 51, thereby insuring a 'per
fect spring pressed electrical connection which
will'not be affected by wear. This arrangement
also eliminates the need’of an exceedingly accu
rate adjustment of the parts. The circuit breaker 15
55 is interposed in the usual manner in the power
circuit of the motor Il as is indicated by the
lead lines 1|, 12 (Fig. 1).
`
As may be seen in Fig. '1, the circuit lbreaker
is so mounted on the wringer frame that the 20
swinging movement of the contact arm 59 in
breaking the circuit therethrough is in a direc
tion away from the wringer' frame. In conse
actuators are pivotally secured 'to brackets 49
(Fig. '1) located near the top of the wringer frame.
As in the first described form, the actuators are
preferably connected by bars 58 for conjoint -duence, the lever 60 in the opening movement of
movement. In the form shown in Figs. 6 and 8, the switch contact will shift longitudinally away
the actuators embody U-shaped members 5l from the wringer frame and at the same time,
dueto the pivoting of the contact arm, the end
rigidly secured together to form a unitary struc
of the lever 60 nearest the wringer frame will
ture by means of upper and lower bars 52 extend
ing between the side arms of the member. The Ahave an upward swinging movement.` 'I‘he cir
cuit breakeris so mounted on the wringer, and 30
30 bars are engaged and supported by grooved anti
friction elements 53 whereby the actuator is particularly with respect to the bar 46 which con
nects the actuators, that the end of the lever
mounted on the wringer frame for shifting move
ment relative thereto. In either of the4 forms nearest the frame is substantiallyv adjacent to
shown in Figs. 6 to 8, inclusive, the relationship Vsaid bar. This end of the lever carries an engag
between the bar 39 and the actuators is such that ing member such as a hook 13. The bar 46 car 35
the operator, by moving an actuator either toward ries a complementary engaging part also in the
or away from the wringer frame, may relieve the nature of a hook 14. The hooks 'I3` and 14 are
both of narrow width and are so related that en
wringer rolls from operative pressure.
An important feature of the present invention gagement between the two hooks is possible only
40 resides in the means. whereby driven movement when the safety release mechanism is set. Any 40
movement, therefore, of the actuators 43 in either
of the wringer rolls may be discontinued or in
terrupted simultaneously with the release of direction will break the engagement` between
presure from the wringer rolls. Referring to Figs. the hooks 13 and 14 `to allow circuit breaking
1, 4 and 9, a bracket 54 is rigidly secured to the movement of the contact arm 59.
In describing the operation of the device, it
end of the side stile I3 and supports a casing 55
for a circuit breaking device or switch 56. In a will be considered that the mechanism is set
for operation as shown in Fig. 1. The operator,
preferred form, the switch comprises spaced ter
minals 51 and 5B, a spanning contact arm 59 and
a controlling or operating lever 60. The terminals
51, 58 are preferably mountednear the upper and
lower parts of the casing as seen in Fig. 4. The
lower terminal 58 is in the form of an elongated
rod rigid with an insulating base 6|. One end
of the contact arm 59 is apertured to receive the
terminal rod and at this point is arcuately shaped,
as at 62, so that the arm may rock easily over
said insulated base. Such means as a spring
63, bearing between a washer 64 on the end of
the terminal rod 58 anda loose washer 65 abut
ting the contact arm, holds the arm against the
base and at the same time insures an electrical
connection between the terminal and arm.
_
The other end of the contact arm 59 carries a
contact point 66 arranged to engage the terminal
51. The contact arm is normally urged into a
-circuit breaking position, as shown in Fig. 4. .To
‘ this end, the lever 60 extends (see Fig. 9) loosely
through a central slot in the arm 59 and also,
as shown in Fig. 4, extends loosely through elon
gated slots in opposite walls of the casing 55.
Surrounding the lever 60 is a spring 61 which
bears between the adjacent >wall of the casing
and a washer 68 or the like which is mounted on
the lever 60 and is held against relative longi
75 tudinal movement in one direction by a pin .69
acting in an emergency, strikes or` pulls either
one of the actuators 43 thereby moving the rod
39 to release the lever 38 and trip the safety
release mechanism. Simultaneously, the hook 14
is carried out of engagement with the hook 13
and the motor circuit is broken. Consequently,
not only are the wringer rolls relieved of their
operative pressure, but the driven movement of 55
the rolls-is instantly discontinued.
An important advantage is obtained by the re
lationship of the parts after the mechanism has
been tripped. Once the connection between the
finger 42 and lever 38 has been interrupted, the 60
lever 38 swings in a direction which is transverse
to the direction of movement of the rod 39 and
across the path of movement of the finger 42.
’I‘he ñnger is of substantial width for sidewise en-gagement with the lever 38 when the lever has so
moved. Consequently, since the lever 38 cannot
accidentally return to its starting position, be
cause of the relationship between the arm 38“
on the catch device 34 and the base 33 of the
latching stirrup, the vsidewise engagement be
tween the ñnger 42 and lever 38 is maintained
until the wringer elements are returned to or
reset in their operating relationship. Hence,
after actuation of the safety release mechanism,
the hook 14 is positively held at one side or the -
4
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2,133,234
other of the position in which it is. engageable
2. In a laundry machine, the combination of a
by the hook 13 on the switch controlling lever 6B. .
wringer frame, rolls mounted therein, means for »
Furthermore, the hook 13, upon breaking of the
engagement between the hooks 13 and 14, shifts
horizontally away and also swings vertically up-,
ward away from the only possible position of en
gagement with the hook '14.
By virtue of these movements, the hooks 13
maintaining the rolls under operating pressure,
safety release mechanism for relieving such pres
sure, connected actuators for said mechanism
and 14 are both shifted to a remote position
10 where accidental reengagement thereof is im
mounted on opposite sides of said frame for move
ment toward and away from said frame, engage
able means movable with said actuators, a prime
mover for driving said rolls including a power cir
cuit, a circuit breaker interposed in said circuit, 10
a contact controller having a part fashionedfor
connection with said engageable means, spring
means tending at alltirnes to move said part out
mechanism before the hook 13 may be caused to Y of engagement with said engageable means, and
15 engage therewith. Moreover', the hook 13 can means for holding said engageable means out 0f 15
only be reengaged. with the hook 14 by a deñnite position for engagement by said part after said
intentional act or manipulation of the control safety release mechanism has been actuated t0
lever 60 by the operator. To facilitate this move
relieve the pressure on said rolls, whereby the
ment, a ñnger piece 15 may be provided on the power circuit cannot be permanently reestablished
20 outer end of the lever 60. It should be noted until after the wringer rolls have been placed in 20
that the operator may, if desired, manipulate the operative condition.
lever 60 independently of the safety release mech
3. In a laundry machine, the combination of
anism to break the motor circuit and thereby in
a wringer frame, rolls mounted therein, means for
terrupt the driven movement of the wringer rolls maintaining the rolls under operating pressure.
25 without affecting the setting of the safety re
safety release mechanism for relieving such pres
lease mechanism.
sure, an actuator for said mechanism movable
From the foregoing, it will be evident that a toward and away from said frame and fashioned
laundry machine has been provided which mate
normally to extend in a substantially vertical
rially increases the operator’s factor of safety. plane along at least three sides of the space occu
30 By providing actuators for the safety release pied by said rolls when the rolls are under Dres 30
mechanism which .will function upon movement sure, a prime mover for driving said rolls includ
thereof either toward or away from the wringer ing a power circuit, a circuit breaker interposed
iframe, the operator may instantly relieve the pres
in s'aid circuit, a contact controller having a hook
sure between the wringer rolls and discontinue engageable with said actuator only when the cir
35 the driving operation thereof. The actuators are cuit breakeris closed and the actuator-is in the 35
so arranged that it becomes practically impossible normal position thereof, spring means tending at
for the operator tobecome entangled in such all times to move said hook out of engagement
fashion that the actuators'cannot or will not be with said actuator, and means for holding said
moved either intentionally or unintentionally. actuator out of possible engagement by said hook
40 After the safety- release mechanism has been after actuation of said mechanism and prior to 40
tripped, it is impossible for any part to be acci
resetting the device for operation.
dentally returned to an operative position with
4. In a laundry machine, the combination of a
Aresulting injury to the operator. Moreover, in frame, rolls mounted therein, means for main
resetting 'the device the sequence of manipulative taining the rolls under operating pressure, safety
45 steps requires the operator to first recondition the release mechanism for relieving such pressure, a 45
wringer rolls for operation before the driving con
movable actuator for said mechanism, a prime
mover for driving said rolls including a power
nection to the rolls can be reestablished. Con
sequently, the operator cannot be injured by an circuit, a circuit breaker interposed in said cir
accident resulting from driving the rolls while the cuit, a contact controller having a part engageable
with said actuator to hold the circuit breaker in
°
'
50 wringer is not ready for use.
circuit closing position, and means for holding
I claim as my invention:
1. In a laundry machine, the combination of said actuator out of position for engagement by
a wringer frame, rolls mounted therein, means said part after the safety release mechanism has
been operated.
_
for maintaining the rolls under operating pres
5. In a laundry machine, the combination of a
55 sure, safety release mechanism for relieving suchv
pressure, actuators for said mechanism pîvotally wringer frame, rolls mounted therein, means _for
connected one to each side of said frame for maintaining the rolls under operating pressure,
movement toward and away from said frame and ' safety release mechanism for relieving such pres
fashioned to extend along at least three sides of sure, a movable actuator for said mechanism, a
60 the space occupied by said rolls, said actuators prime mover for driving said rolls including a 60
being connected together for conjoint movement, power circuit, a circuit breaker interposed in said
a hook movable with said actuators, a prime circuit, a contact controller having a part en
mover for driving said rolls including a power gageable with said actuator only when the circuit
breaker is closed, and spring means tending at all
circuit, a circuit breaker interposed in said cir
times to move said part out of engagement with
65 cuit, a contact controller having a hook engage
able with said first mentioned hook only when the said actuator whereby movement of said actuator
circuit breaker is closed and the actuators are in releases said contacty controllerto break said
the position assumed when the rolls are under power circuit.
6. A wringer comprising, in combination, a
pressure, spring means tending at all times to
frame, wringer rolls normally maintained under
70 move said hook on said controller out of engage
ment with said first mentioned hook, and means operative pressure, a safety release mechanism
for .relieving the rolls of such pressure including
for holding said first mentioned hook out of posi
an' actuator moveable relative to said frame, a
tion for engagement by said hook on said con
troller as ~long as the safety release mechanism driving motor having a power circuit, a switch in
is inoperative.
said circuit including a normally open contact,
possible. It will be evident, therefore, that the
hook 14 must ñrst Vbe/returned to its engageable
position by the resetting of the safety release
5
2,183,234
and means connected with said contact for de
tachable engagement with said actuator to hold
said Contact in closed position, said means having
a combined shifting and swinging movement when
said engagement is broken to a remote position
where accidental reengagement with said actuator
is impossible.
4and a disengageable connection between said ac
tuators and said contact for holding said contact
in circuit closing position.
'
11. A wringer comprising, in combination, a
frame, wringer rolls normally maintained under
operative pressure, -a safety release mechanism
for relieving the rolls of such pressure, actuators '
7. A wringer comprising, in combination, va for said mechanism comprising a U-shaped mem
frame, wringer rolls in said frame normally main
ber disposed on each side of the frame with the
10 tained under operative pressure, mechanism for _ base of the memberparalleling the wringer rolls
releasing said pressure from the rolls including an and the 'sides .thereof extending downwardly.
actuator mounted on the side of the frame for along the sides of the wringer frame, means ex
>transverse movement toward or away from said tending between said members across either end
frame, a driving motor having a power circuit, a of the frame for rigidly connecting said mem--15 switch in said circuit including a contact resil
bers together for movement as a unit, guides- on
iently urged toward an open'position, and means said frame engaging said means to support said 15
connected with said contact and engageable with members for movement toward and yaway from
said actuator to hold said contact in closed Dosi . said frame, a circuit controlling the operation of
tion, said engagement being releasable by said the wringer rolls, a switch in said circuit, and a
transverse movement of said actuator in either disengageable- connection between said contactl 20
direction, said means having a combined shift
and said actuators for maintaining a circuit
ing and swinging movement upon disengagement
from said actuator to a point where reengage
ment can only be effected by an intentional ma
nipulation on the part of the operator.
8. A wringer comprising, in combination, a
frame, wringer rolls in saidv frame normally
maintained under operative pressure, mechanism
for releasing said pressure from the rolls includ
30 ing an actuator mounted on the side of »the frame
for transverse movement toward or away from
said frame, a driving motor having a powerl cir
cuit and a switch in said circuit comprising a
movable contact, resilient means tending at al1
35 -times to move said contact to its open position,
an operating lever connected with said contact
having means thereon f_or detachable engage
ment with said actuator only when the safety
release mechanism is set to allow operative pres
through said switch.
12. In a wringer, the combination of wringer
rolls, quick release means for holding said rolls
in operative relation, electric driving means in 25
cluding a control switch, and means manipulable
by the operator and independently connected
with'said quick release means and said control
switch> for effecting the release of -said rolls and
opening of said switch together or independently 30
should either element fail to function,
,
13. In a wringer, the combination of rotatable
wringer rolls, >quick release mechanism for hold- y
ing said rolls under operating pressure and oper
able to release such pressure therefrom, driving 35
mechanism for said rolls, and means operatively
connected with drivingl mechanism and said quick
release mechanism for simultaneously actuating
both mechanisms under normal conditions, the
40 sure upon the rolls, and an operator’s finger piece - connection with one mechanism being independ 40
on said lever.
.
_
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ent of the connection with the other mechanism>
9. The combination, in a wringer mechanism to insure of actuation of at least one or the other
having rolls normally operating under pressure mechanism under all conditions.
and means for driving said rolls, of mechanism14. In a wringer, the combination of separabley
>for relieving such operating pressure, discontin
frame sections having wringer -rolls supported
uing means for interrupting the roll drive, and therein and means for applying tension to the
a ‘positive connection between said mechanism rolls when the sections are operatively assem
and said discontinuing means by which the roll bled, quickly releasable means for maintaining
drive is held against interruption only as long assembly of said sections including an impositive '
as said mechanism is so conditioned that the latch, a transversely reciprocable member mountl
50.
rolls- may be under operative pressure, said con
nection having separable parts each movable
away from the point of engagement when the
safety release mechanism is actuated, said parts
being reengageable only after the operator has
reset said mechanism for'operation and posi
tively retur ed the discontinuing means from
the inopera ive position thereof in that sequenc
of manipulative movements. ,
'
10. A wringer comprising, in combination, a
ed on one of said _sections and having a spring
urged normal position, means connecting said
latch-with said member in said normal position
thereof to hold said latch- operative, means 'clis
posed for manipulation by the'operator and asso 55
ciated with said reciprocablel member to move
said member upon a pushor pull by the oper->
ator for interrupting the connection by which
the latch was held operative, a switch, and means ,
for opening said switch as said quick release 60
frame, wringer rolls normally maintained under » means is operated to Arelease said sections.
operative pressure, mechanism for relieving the '
15. 'I'he combination, in a wringer mechanism
rolls of such pressure, actuators for said mech
anism comprising a U-shaped member disposed
on each side of the frame with the base part
thereof paralleling the wringer rolls and >with
the sides extending downwardly along the sides
of the wringer `frame, means for pivotally secur
ing said members. to the frame near the top
70 thereof, means for connecting said members to
~ gether for conjoint movement, a'vcircuit control
ling the operation of the Wringer rolls, a switch
in said circuit having a normally open contact,
having rolls normally operating under pressureß
and means for driving said rolls, of a safety
release mechanism for relieving such operating 65
pressure, discontinuing means for interrupting
the roll drive, and cooperating parts correlated
for engagement to connect said mechanism and
said discontinuing means only by a manipulative
act performed subsequent to the act of condi
tioning the rolls for the imposition of _ operating
pressure thereon.
’
’
. y
WALTER K». VOSS.
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