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Патент USA US2387283

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Oct.23, 1945.
Filed, April 11, 1944
Patented Oct. 23, 1945
John Oakley, Spring?eld, Mass., assignor to
Perkins Machine and Gear Company, West
Spring?eld, Mass., a corporation of Massachu
Application April 11, 1944, Serial No. 530,457
3 Claims. (Cl. 74-81)
This invention relates to improvements in
washing machines and the like and is directed
more particularly to driving mechanisms there
extends up into the tub through wall 6. A driven
member 30 is fixed on shaft 26.
A segment 32 is journalled on shaft 34 and it has
a driving member 36 in the form of a curved bar
The principal objects of the invention are di GI secured thereto at one end while its other end may
slide between lugs 38.
rected to driving mechanism which is particu
A link 46 has opposite ends pivoted at 62 and
larly adapted for washing machines and is char
44 to the| members 26 and 32 so that as the
acterized by frictionally engageable driving and
member 26 rotates the member 32 swings back
driven members whereby a shaft for an agitator
may'be driven back and forth through various 10 and forth. The driven and driving members 30
and 36 have inclined frictionally engageable faces
. so that the latter may be driven by the former.
Mechanisms of the type to which this invention
The driven member is shown as a female member
relates are intended to be responsive to the load
but it may'have a circumferential tongue with the
applied to an osc'illatable shaft, such as the agi
driving member having a groove.
tator shaft, and are arranged for adjustment to
The curvature of the driving member 36 is
accommodate or operate on materials and fabrics
preferably on a radius less or slightly less than
of various kinds.
the distance from the axis of the shaft 36 to the
Some materials require more or less agitation
driving surfaces of said member 36. The said
than others and to that end the novel construc
tion of this invention makes it possible to ac 20 member 36 is somewhat yieldable particularly
between its ends and the said shaft 36 is movable
commodate the angle of oscillation of the shaft
towards’ and away from the driven member 36.
to the material or fabric being washed. That is,
This may be accomplished in various ways but
the angle of oscillation may be varied from zero
in the form of the invention shown the shaft 36
to the maximum, even while the mechanism is in
25 has a part Ml that is oscillatable in the cover 8
which is eccentrically disposed relative to the
Various novel features and advantages of the
part 34. By rotating the part 66 in one direc
invention will be observed from the following de
tion or the other the driving member 32 is moved
scription of the invention in the form at present
towards and away from the driven member.
When the driving member 3.2 is moved away~
the driven member 36, the driving member
Fig. 1 is a partial inverted plan view of a wash
in its back and forth movements will not operate
ing machine tub having the novel features of the
the driven member. As the said driving member
invention associated therewith;
moved towards the driven memberpto engage
Fig. 2 is a side elevational view of the driven 35
the engageable surfaces the driven member is
member of the mechanism shown in Fig. 1;
oscillated thereby.
Fig. 3 is a plan view showing the driving mem
The driving member 36 being yieldable the
ber in engagement with the driven member;
driving and driven members are therefore yield
Fig. 4 is a plan view of the adjusting member
ingly and frictionally engageable so that with the
of the mechanism; and
curvature of the driving member being on the
Fig. 5 is a sectional elevational view on the line
shorter radius, as described, the angle of oscilla
5_5 of Fig. 1.
In the drawing:‘
Referring now to the drawing more in detail,
the invention will be fully described.
A tub of a washing machine is represented by
2 to the bottom wall 6 of which is secured a hous
ing 6 that may have a cover 8.
' tion of the driven member may be varied accord
- ingly as the driving member is moved in and out._
45 * To move the shaft 40 for varying the angle of
oscillation a lever 60 is secured to the said shaft
which carries a member 62 that has an inclined
face, as shown in Fig. 4.
A drive shaft I6 is journalled in the housing
An operating rod 64 has a lower portion 66 jour
and extends upwardly along the side of the tub
nalled in a bracket 68. The rod portion 66 ex
for operating a wringer mechanism. A motor l2
tends through member 82 and has a member ‘if!
supported by a bracket l8 has a shaft l6 con
thereon that is provided with a projection for
nected by a coupling l8 to a shaft 26 that is Jour
acting on the inclined surface of member 62 as
nailed in the housing. A worm 22 on shaft 26
meshes with a gear 26 on shaft l6.
A collar 12 is provided on the rod 66 and a
An agitator shaft 26 journalled in the housing .55
spring ‘H on the said rod 66 acts to yieldingly
hold the parts 62 and ‘III in engagement.
A clutch ‘it is slidable but non-rotatable on the
rod 66 and it has teeth engageable in grooves of
the member 68. A spring 18 on rod 86 between
member 16 and a collar 80 on the rod urges the
member 16 into engagement with the member Bl.
parallel to the axis of the agitator shaft, said
driven member having angularly disposed fric
tion faces, said driving member having a periph
eral portion relatively yieldable intermediate op
posite ends thereof providedv with friction faces
complemental to and engageable with the faces
of the driven member, and said driving member
By rotating rod- 65 in one direction or the other
movable towards and away from the driven mem
the lever 80 is swung in one direction or the other
thereby to move the shaft 34 towards and away 10 7 2. Variable mechanism for a washing machine
from the driven member.
In that way the angle _ ,
of oscillation of the driven member may be varied.
The engageable members 68 and 16 hold the rod
66 in adjusted positions.
having an agitator shaft comprising in combina-,.»
tion, 'a driven member on said shaft having
spaced relatively angularly disposed friction
‘ faces, a driving member oscillatable on an axis
, While the driven member 30 is shown to be out
spaced from and parallel to‘ the axis of the agi
side the driving member ", it may be desired
in some cases to locate the same inside of said
member and in any event the driving and driven
members may be arranged for the’ yielding fric
nected thereto at opposite ends being relatively
yieldable intermediate said ends and provided
with friction faces complemental to and engaging
tator shaft having a peripheral portion con
tional engagement whereby the angle of oscilla 20 the faces of driven member, and means to move
tion may be varied.
the driving member towards and away from the
' The invention may be embodied in other spe
driven’ member.
‘ '
ci?c forms without departing from the essential
characteristics thereof. Hence, the present em
3. Variable mechanism for a washing machine
having an agitator shaft comprising in combina
bodiments are therefore to be ‘considered in all r . tion, a driven member on said shaft having spaced
respects merely as being illustrative and notes
relatively angularly disposed friction faces, a driv
ing member oscillatable on an axis spaced from
being restrictive, the scope of the invention be
ing indicated by the appended claims rather than
by the foregoing description, and all modi?ca
and parallel to the axis of, said agitator shaft
having a curved peripheral portion provided with
tions and variations as fall within 'the meaning 30 friction faces complemental to the friction faces
and purview and range of equivalency of the ap
of .the driven member which are formed on a
pended claims are therefore intended to be em- '
slightly less radius than the distance between the
braced therein.
axis of oscillation of the driving member and
What it is desired to claim and secure by Let-~
friction faces of the driven member, said periph~
ters Patent of the United States is:
eral portion being relatively yieldable intermedi
1. Variable- mechanism for a, washing machine '
ate its ends, and means for moving the driving
having an agitator shaft comprising in combina
member towards and away from the driven
tion, a driven member on said shaft, a driving
member oscillatable on an axis spaced from and
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