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Патент USA US2113837

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Àpril 12, 1938.
w. s._HAMM
Filed Nov. 1e, 1955
[email protected]
772 51h/7217i,
Patented Apr. 12, 1938
William S. Hamm, Elkhart, Ind., assigner to The`
Adlake Company, Chicago, Ill., a corporation
of Illinois n
Application November 16, 1935, Serial No. 50,067
4 Claims. (Cl. 156-26)
bers will be described in detail. As shown in Fig.
4, the left-hand head i2 is provided with a stern
I9 which extends into the lend of the tube I0
through a hole in a wood block Ziì which is fixedly
a part of a turn in either direction. The im
proved fixture is of pleasing appearance, can be positioned in the wide intermediate section I3
manufactured inexpensively, is absolutely noise `of the tube. The hole in the block 25 forms a
guideway for the stem of the head to slide back
less and will hold a curtain ñrmly in any posi
and forth in, and the outer part of the hole is
-tion in which placed.
Other more speciñc objects and advantages of enlarged to provide a pocket for a spring 2i which
lthe invention will be apparent to those skilled is coiled about a reduced portion of the stem be- '
The purpose of this invention is to provide a
curtain fixture oi improved construction which
is operated by rotating a centrally located knob
in the art upon a full understanding of the con
tween a shoulder .'22v on the block and a shoulder
struction, arrangement and operation of the parts
entering into the complete organization.
23 on the stem. The spring 2l tends at all times
to project the'head I2 outwardly into firmly hold
ing frictional engagement with the guide I3.
A Vpreferred embodiment of the invention is pre
sented herein, but it will of course- be appreciated
that such embodiment is intended primarily for
the purpose of exemplification and that the in
vention is susceptible of being embodied in other
structurally modified forms coming equally with
20 in the scopeof the appendedclaims.
In the accompanying drawing:
Fig. 1 is an inside front View of a window cur
tain assembly equipped with the new fixture;
Fig. 2 is a vertical transverse section through
25 the íixture, taken on the line 2_2 of Fig. 1;
Fig. 3 is a similar section, taken on the line
3-3 of Fig. 1;
Fig. 4 is a vertical longitudinal section through
one end of the ñxture;
Fig. 5 is a horizontal section, takenon the line
5_5 of Fig. 4;
Fig. 6 is a horizontal section through the center
of the fixture, taken on the line 'ii-_6 of Fig. 1;
Fig. 7 is a vertical longitudinal section, taken
on the line 1_-1 of Fig. 6.
As will be observed in the drawing, the fixture
includes a tube lll, an operating knob II midway
between the ends of the tube, and heads I2 be
40 yond the ends of the tube. The tube Ill, which
is preferably made of either sheet or extruded
metal, is vertically elongated in cross section,
with narrow upper and lower sections and a rela
tively wide rectangular intermediate section I3,
45 and is provided along its upper edge with a par
tially closed groove I4 in which the lower edge
The inner end of the stem lil is threaded into
a small sleeve 2li which is slidably mounted in an
enlargement at the inner end of the hole in the
block 2li, and the sleeve 24 is in turn pivotally
attached to one end of a long rod 25. The end
of the sleeve 2li which is connected with the rod
25 is bifurcated, as best shown in Fig. 5, and ther
adjacent end of the rod 25 is iiattened to fit within
the bifurcation. A pivot pin 2li is mounted in the
bifurcated end and passes through an aperture
in the ñattened- portion of the rod, which aper 25
ture is elongated axially of the rod to permit of
a certain amount of endwise movement of 'the
rod relative to the sleeve and its associated stem
and head. This endwise movement is normally
prevented by the resistance of a spring 2l which
is mounted on the rod 25 near the pivotal con
nection and is compressed between a washer 28
secured to the rod and another washer 29 abutting
against the end of the sleeve. The far end of
the rod 25 terminates adjacent the location of
the knob I I in two oppositely spring-pressed strips
30 which are riveted to the rod and are provided
at their free ends with laterally projecting studs
The rods 25 leading to both heads are connected
to a rotatable hub 32 which is located in the tube
I0 behind the knob il. The knob has a reduced
neck portion 33 which is journaled in a circular
aperture cut in the front face of the tube, and
the hub 32 is clamped to the inside face of the
knob by a screw >35i which passes through the
center of the knob and is threaded into a recess
of the curtain I5 is securely held rby a small filler
’ in the center of the hub. The end of the hub
rod I6 inserted from one end of the tube.
which is clamped to the knob is larger than the
The heads l2 are preferably equipped with rub
50 ber blocks Il, but they may befurnished with neck portion and accordingly locks the knob
any other suitable device for frictionally engag« against outward movement. The hub is centered
ing with the’ vertical guides I8 at the sides of on the knob by means of the screw 364 and is
the window opening. As both of the heads I2 caused to turn positively with the' knob by means>
and their associated control members are the of a rib 35 on the inside face of the knob which
55 same, only one of the heads and its control mem
lits into a complementary groove 35 on the ad
I claim:
f1.Y In a curtain fixture, an outwardly movable
head at one end of the fixture for engagement
with a guide at one side of the curtain, a spring
for pressing the head outwardly, a rod connected
jacent end of the hub. The hub 32 is of gener
ally cylindrical shape, with segments cut out of
opposite sides between the ends, which segments
leave two pairs of spaced ears 3l. The strips
30 on the inner ends of thel rods 25 are sprung
together to ñt between the ears 31, and when so
fitted the studs 3| on the ends of Vthe strips snap
into recesses in the ears and establish pivotal con
with theV head, a rotatable operating member con- '
nected at a point eccentrically thereof with the
rod, and a resiliently yieldable coupling between
nections between the Y_ends of the rods andthe
10 hub eccentrically of the axis of the latter.
strips 30 are preferably provided, in the spaces
between the same, with yieldable pads 38 of felt
or other suitable cushioning and sound-deadening
Near the hub 32 the rods 25 are provided with
springs 39 which project upwardly and down
wardly at an angle from the rods andare pro
vided with bent foot portions 4D which abut with
the inside walls of the tube I0 in the enlarged
intermediate section I3 thereof. These springs,
in addition to supplementing the action of the»V
springs 2l in tending to force the heads into en
gagement with the guides, tend to keep the-rods
25 centered in the tube and free from all up-and
down as well as sidewise play.
When the fixture is first installed, the heads
saidoperating member and said rod so con
structedrand arranged as to permit the operating 10
member to berrotatableV in eitherA direction pastV
the dead center Yposition of the rod in retracting
the head.
2. In a curtainV fixture, an outwardly movable
head at one end of the fixture Vfor engagement 15
with a guide at one side of the curtain, a spring
for pressing theV head outwardly, a sleeve thread
ingly connected with the head, a rod pivotally
connected with the sleeve, and a rotatable oper
ating >member connected ata point eccentrically 20
thereof with the rod for retracting the head.
V3.V In a curtain fixture, an outwardly movable
head at one end of the fixture for engagement
with a guide at one side of the curtain, a spring
for pressing the head outwardly, a sleeve thread
inglyV connected with the head, a rod pivotally
connected with the sleeve, a rotatable operating
I2 are screwed either in or out in the sleeves 24
in order to cause the heads to engage with'the , member connected at a point eccentrically there
guides I8 just'before the pivotal connections be- ' of with the rod, and a resiliently yieldable cou
pling at the location of the pivotalconnection 30
30 tween the hub 32 and the rods 25 reach their
between the sleeve and the Vrod so constructed
dead center positions.
, Torretract the heads from the guides in rais
and arranged as to permit the operating mem
ing or lowering the curtain, it is merely necessary '
to rotate the knob II a part of a turn inY either
35 direction. It doesn’t make any difference inVv
what direction the knob is turned because if it
Vis started in a direction which would project the'
heads instead of retract them the rods'25'wil1
pass through their dead center positions without
40 any diñiculty due to'the resiliently yieldable cou
plings in the rods aiïorded by the springs 21.
In assembling the several parts of the fixture
at the time of its manufacture, the rods 25 are
hooked up with the hub 32 and all of the :insideVV
45 mechanism is then threaded through Vthe tube I0
at the same time. Then when the hub 32 is'
ber to be rotated in either direction past the dead
brought into register with ?the aperture at the
center of the tube the knobI Il is placed in posi
tion in the aperture and the hub 32 is drawn up
50 tightly against it by means of the screw 34.>
center position of the rod in retracting the head.
4. In a curtain ñxture, a tube adapted- to be
secured to the lower end of a window curtain,
an outwardly movable head at one end of the
tube adapted to engage with a guide at one side
of the window, a rotatable member Vmounted in
the tube midway between the ends Vof the latter, ,
a link in the tube pivotally connected at its outer
end to the head and at its inner end to the rotat
able member at a point eccentrically of the latter,
whereby rotation of said member away »from a
dead center position will retract the head,.a spring
acting against the head to project the latter, and ‘
another spring acting against the link` toaugment
the effect of the ñrst mentioned springandhold
the adjacent end of the link against lateral play.
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