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Патент USA US3064976

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Nov. 20, 1962
H. L. sTAvENAU
3,064,956
WINDOW OPERATOR
Filed Dec. 19, 1960
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United States Patent Ó ” ice
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FIGURE 5 is a side elevation view of a portion of the
3,664g966
present invention;
WINDOW @PERATOR
FIGURE 6 is a sectional view taken along the line 6-6
in FIGURE 5.
While this invention is susceptible of embodiments in
many different forms, there is shown in 4the drawings and
will herein be described in detail two embodiments of the
invention with the understanding that the present dis
Harold L. Stavenau, ûwatonna, Minn., assigner to Truth
Tool Company, a corporation of Minnesota
Filed Der. 19, 196i), Ser. No. 76,658
9 Claims. (Ci. 263-461)
The present invention relates to operators for windows
with swinging sashes and more particularly to operators
wherein the lever portion can be swung either to the right
or left to bring the window sash from a nearly closed
position to a tightly closed position.
At the present it is common practice to provide swing
ing window sashes with an operator to open and close
them which consists of a short bar hinged to a portion of
the window sash away from that portion of the sash
which is pivotally secured to the window frame and a
lever pivotally connected to the other end of the bar which
may slide through a guide whenever the lever is aligned
with the bar. In order to provide the force necessary to
break the seal of a tightly closed window, a projection is
provided on the lever which engages a stationary member
to provide a sliding lever arm action which multiplies the
force of the person operating the lever to break the seal.
However, these operators have had two distinct disad
vantages.
closure is to be considered as an exempliiication of the
10 principles of the invention and is not intended to limit the
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25
The ñrst is that for particular applications
either a right hand or a left hand operator must be ordered
because the lever is made to swing only in one direction
from its alignment position with the bar. The second
disadvantage is that frequent use of the operator will 30
cause noticeable wear between the guide and the portion
of the lever which rests against the guide to form a slid
ing fulcrum for tightly closing a window sash. Thus a
stationary fulcrum would eliminate this wear and pro
35
long the useful life of the operator.
Therefore it is an object of my invention to provide a
new and improved operator for windows with swinging
sashes.
A further object of the present invention is to provide
an operator having a lever which may be swung either
to the right or the left to tightly close a window.
3,064,966
Patented Nov. 20, 1962
40
invention to the embodiments illustrated. The scope of
the invention will be pointed out in the appended claims.
Referring to FIGURES l through 4, a window sash 10
has a bracket 11 secured to its inner surface. A bar 12
is provided with slots 13 and 14 to receive a pair( of
prongs 15 and 16 of the bracket 11 for the purpose of
providing a hinged connection between the bar 12 and
the window sash 10. A latch member 17 is rotatably se
cured to the bar 12 by a pivot 18. With the latch mem
ber 17 in the locked position shown in FIGURES 3 and
4, lip portions 19 and 2t) engage slots in. the prongs 15
and 16 respectively to provide a hinged connection be
tween the sash 10 and the bar 12.
Referring now to FIGURES 5 and 6 in addition to
FIGURES 1 through 4, an intermediate member 21, is
slidably mounted on the bar 12 by a projection 22 struck
downward from said member 21 and a pin 23 with a pin
head 24 rigidly mounted to said member 21. The pro
jection 22 has shoulder portions thereon to space the out
ward end of said member 21 from said bar 12 and a tongue
portion slidably engaging a slot 25 in the bar 12 to pre
vent lateral movement between said outward end of the
member 21 and the bar 12. The pin 23 is in slidable en
gagement in a slot 26- in the bar 12 to prevent lateral
movement between the inward end ofthe member 21 and
the bar 12. The pin head 24 maintains the member 21
in spaced relationship to the bar 12, A ñange 27 is bent
upward from the outward end of the member 21. A
pivot 28 provides a rotatable connection between the bar
12 and an operating lever 30. An extension lever 31 is
slidably connected to the lever 30 by slidable rivets dis
posed in a slot 32 of lever 30 and in a similar slot (not
shown) in the lever extension 31. A handle 33 is formed
An additional object is to provide a stationary fulcrum
for the lever of an operator whenever the lever is being
utilized to bring the window sash from a near closed posi 45 at the end of the extension lever 31.
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tion to a tightly closed position or from the tightly closed
A cam slot 34 in the bar ‘1.2 receives a projection 35
position back to the nearly closed position.
which is rigidly añixed to the lever 30; When the lever
Further objects and advantages will become apparent
30 is aligned with the bar 12 and the member 21, the
from the following detailed description taken in connec
combination may be slid through a guide 40 to move the
tion with the accompanying drawings.
50 window sash from a fully open position to a nearly closed
In the drawings:
FIGURE l is a sectional view of the present invention
with the window sash in a near closed position, otherwise
position. The window sash is shown in the nearly closed
position in FIGURE l, and FIGURE 3.- FIGURE 2
shows the window sash 10 in an intermediate open posi
taken along the line 1-1 in FIGURE 2;
tion. The guide 40 consists of a top housing member 41,
FIGURE 2 is a top elevation view of the present in 55 a bottom housing member 42 and a plastic lining mem
ber 43 which is held in position by the housing members
vention ‘with the operating lever aligned with the bar and
41 and 42 and provides a smooth surface upon which the
lever 30 and the bar `1,2 slide. When the remainder of
the window is covered by a screen, a flexible metallic
portion partially in cross section and with the lever posi
60 member 44 is mounted on the top housing member `41
tioned at a 45° angle to the bar;
to prevent insects from entering the window through 4the
FIGURE 4 is a bottom elevation view with the guide
portion partially in cross section with the lever positioned
The guide 4o is rigidly secured to a window frame 50
at a 90° angle to the bar;
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the sash in a more open position;
FIGURE 3 is a bottom elevation view with the guide
guide 40.
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by the screws 51 and 52.
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3,064,966
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4. An operator for opening and closing windows with
The window sash 1t)` may- be positioned at any degree
of opening by the manipulation of the handle 33 of the
swinging sashes in accordance with claim l wherein said
means for connecting said bar to said intermediate mem
lever extension 31 when the lever 30l is aligned with thel
bar 12 and member 21. To close the window sash 10
the handle 33 is manipulated by drawing it inward from
the window sash 10 until the window sash is in the nearly
ber for transmitting force through said lever, said mem
ber and said bar to nearly close said sash consists of a
projection on said member and an abutment on said bar
closed position. This action brings the flange 28 into
engagement with the guide 40, thereby stopping the. in
engageable by said projection whenever the said lever is
30 as it is swung to either a clockwise or a counterclock
means for connecting said bar to said intermediate mem
aligned with said bar and said member.
5. An operator for opening and closing windows with
ward movement `of the sash 10. The pivot 28 mounted
on member 21 provides a stationary fulcrum for the lever 10 swinging sashes in accordance. with claim l wherein said
ber for transmitting force through said lever, said mem
wise.A position. As they lever 30y is swung- in a counter
clockwise direction as viewed from the bottom, one side
of they projection 35 will contact a portion of the inward
side of slot 34 as shown in FIGURE 3. y As the counter
ber and said bar to nearly close said sash consists of a
pin mounted on said member and a slot in said bar hav
15 ing said pin passing therethrough, one end of said slot
being engageable by said pin whenever the said lever is
clockwise swing is continuedl the action of lever. 30 through
projection 3S places force on the bar 12 to draw the
aligned with said bar and said member.
6. An operator for opening and closing windows with
sash 10 to the tightly closed position as shown in FIG
swinging sashes in accordance with claim l wherein said
URE 4. A clockwise swing of lever 30 brings the other
side of the projection 35 inv contact with another portion 20 means engageable between said lever and said bar for
moving said bar relative to said member as said lever is
of the inward side of slot 34 to force said sash into the
rotated about said pivot and for transmitting force against
tightly closed position in the same manner as the coun
said sash from said lever through said bar consists of a
terclockwise swing.
projection afñxed to said lever and a set of abutments on
As the lever 3€) is swung from either the clockwise
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or theV counterclockwise position to the aligned position 25 said bar engageable by said projection.
7. An operator for opening and closing windows with
the projection will engage the outward side of the slot 34
swinging sashes in accordance with claim 1 wherein said
to apply force against the sashy 16 through the bar 12.
means engageable between said lever and said bar for
Thusïthe sash is returned from the tightly closed position
moving saidk bar relative to said member as said lever is
to'` the nearly closed position with a mechanical advan
tagev being provided by the lever 30 to overcome the 30 rotated about said pivot and for transmitting force against
tendency of the window sash 10 to stick in the tightly
said sash from said lever-_ through said -bar consists of a
closed position. During the swing to the aligned position
projection añixed to said lever and a slot in said bar
having sides engageable by said projection.
the member 21 with the pivot 28 mounted thereon is held
8. An operator for opening and closing windows with
stationary by the flange 27 bearing on the guide 40u
With the lever in the aligned position, compression 35 swinging sashes comprising a guide mounted on a window
frame structure; a bar, an intermediate member and a
force is transmitted from the lever 30 through the pro
lever sliding through said guide for opening and nearly
jection 35 to the bar 12 to open thel sash 10i. However
the tension force to bring the sash 10 to a nearly closed
closing a window sash whenever said lever is in an
position is transmitted from the lever through the pivot
aligned position with said bar and said member, said bar
28,*the member 21 and pin 23 to the bar 12. As an 40 having one end hinged to said window sash, said inter.
mediate member slidably mounted on said bar; stop
alternative to utilizing pin 23 as a component in the chain
means on said member for engagement with said guide‘
of- components for transmitting the tension force, the
' projection 22 or a combination of both pin 23 and the
whensaidsash is moved to a nearly closed position from.
projection 22 may bel utilized between the member 21
an open position; a pivot connecting` one end of said
lever to the other end of said member; a projection on
said member between said pivot and said one end of said
andthe bar 12,
I claim:
l. An‘operator for opening and closing windows with
lever; a first abutment on saidy bar for engagement by
said projection to force said sash from said nearlyV closed
Swinging sashes comprising a guide mounted on a window
frame'str'ucture; a bar, an intermediate member slidably
mounted on said bar for parallel movement relative to
position to a tightly closed position as said lever is swung
50
said bar -anda lever sliding through said guide for open
ing and nearly closing a window sash whenever said lever
is in an aligned position with said bar, and said member,
said bar having one end hinged to said window sash; a
meansv mounted on said intermediate member for stop
ping the inward movement of said member at- a predeter
about said pivot from said aligned position to a clockwise
position -by movement of said bar relative to said member
by the action of said lever; a second abutment on said
bar for engagement by said projection to force said sash
from said nearly closed position to said tightly closed
5.5 position as said lever is swung about said pivot from said
aligned position to a counterclockwise position by move
ment of said bar relative to said member by the action
of said lever and athird abutment on said bar for engage
minedposition; a means for connecting said bar to said
intermediate member for transmitting force through said
ment by said projection to force said sash from said tight
lever, said member and said bar to nearly close said sash;
a pivot connecting said lever to said member and means 60 ly closed- position to said nearly closed position as said
lever is swung about said pivot from either said clock
engageable between said lever and said bar for moving
said bar relative tovsaid member as said leverv is rotated
wise or said counterclockwise position .to said aligned
position by movement of said bar relative to said mem
aboutsaid pivot and for transmitting force against said
sash from said lever through said bar.
ber by the action of said lever.
2V. An operator for opening and closing windows with
swinging sashes in_ accordance with claim l wherein said
means for stopping therinward movement of said member
at a predetermined position consists of an abutment aflixed
to said member for engagement with said guide.
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9. An operator for opening and closing windows with
swinging sashes comprising a guide mounted on a window
framel structure; a bar, an intermediate member and a
lever sliding through said guide for opening and nearly
closing a'window sash whenever said lever is in an aligned
3. An operator for opening and closing windows with 70 position with said bar» and said member, said bar having
one end hinged to said window sash, said intermediate
swinging sashes in accordance with claim 1 wherein said
means for stopping the inward movement of saidmember
at a predetermined position consists of -a ñange formed
at the outside end of said member for engagement with
said
guide.
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member slidably mounted on said bar for parallel motion
to the center line of said bar; a ñange on the end of said
member in nearest proximity to said window sash for en
75 gagement with said guide when said sash is moved to a
3,064,966
5
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nearly closed position from an open position; a pivot con
necting one end of said lever to the other end of said
member; a projection on said member between said pivot
by the action of said lever and to force said sash from said
tightly closed position to said nearly closed position as
said lever is swung about said pivot from either said
and said one end `of said lever; and a slot cam in said bar
clockwise or said counterclockwise position to said aligned
position by movement of said bar relative to said mem
for engagement by said projection to force said sash
from said nearly closed position to a tightly closed posi~
tion as said lever is swung about said pivot from said
aligned position to either a clockwise or counterclockwise
position by movement of said bar relative to said member
ber by the action of said lever.
References Cited in the ñle of this patent
UNITED STATES PATENTS
2,736,595
Erickson _____________ _.. Feb. 28, 1956
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