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Патент USA US2122224

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June 28, 1938.
Filed Jan. 28, 1957
‘ Mlliam T/?/Zla’e
and Edwin Aforz‘fl/
Patented June 28, 1938
uNlreo STATES rAraar prince
vaaarm mama '
William Wade, Chicago, and Edwin North, Rock
iord, Ill., assignors to National Lock Company,
Rockford, 111., a corporation of Delaware
Application January 28, 1937, Serial No. 122,803
5 Claims. (or 156-17)
This invention relates to Venetian blinds, and 3), the front cord being attached at its upper
particularly to novel means for supporting the extremity to the bottom of the carriage M by
blind slats from a top rail or ‘carriage.
means of an eyelet sleeve 22 crimped onto the
One of the important objects residing in the
5 invention is the provision of ?exible slat supporting and controlling members in the form of
end of the cord and having a stay pin 24 passed
through the eyelet portion thereof and bent into 5
U-shape with its ‘free end portions diverged over
cords or the like and means for attaching the
the edges‘ of an opening 25 in the bottom of the
supporting members to the several slats and for
maintaining certain others of the ?exible mem10 bers in properv operating relation to the first
mentioned ?exible members.
A further object of the invention is the provision of a Venetian blind which is relatively
quiet in operation or when subjected to unusual
w vibration such as might be ‘found in Pullman
cars'and the like.
carriage, these diverged ends of the pin being
secured from displacement by bentover ears 26
which are punched out of the side walls of the 110
carriage it and bent over'onto the pins.
The lowermost ends of these same outer cords
H’ are provided with eyelet sleeves 22' which
engage cleats II secured to the bottommost slat
it, the cleats having eyelets or loops H’ which 15
pass through the eyelet portion of the sleeve so
Still another object is the provision of novel
slat supporting means of an extremely ?exible
nature and adapted for novel attachment to the
20 blind slats and top rail or carriage.
Other objects and novel aspects of the inven-
that the cord is pivotally attached at its lower
extremity to the edge of this lower slat.
Each of the front cords I2’ is also attached
to the longitudinal edges of each of the inter- 20
mediate slats It by means of a special clip
tion will appear as the following description proceeds in view of the annexed drawing, in
shown in Fig. 4. This clip 30 is in the form 01
an elongated metal strip bent back upon itself to
Fig. 1 is a. front elevation of a blind structure
utilizing the novel slat supporting means of the
each provided with an outwardly turned lip 3! 25
and having a bight portion 32 through which a.
present, invention; '
wire attaching loop 33 is passed for attachment
have opposite upper and lower ?nger portions
Fig. 2 is an enlarged perspective fragment of
' the carriage and means for attaching the flexi30 ble elements to the carriage and to a slat; _
to the front cord i2’.
The loop 33 has its free end portions bent
back upon themselves to provide overlying ax- .30
Fig. 3 is a fragmentary vertical section taken
ially aligned eyelets 3t through which the cord
laterally through the carriage and a slat and passes and which may be crimped or pressed so,
viewed along lines 3-3 of Fig. 1;
as to tightly grip the cord and prevent the dis
Fig. 4 is an enlarged perspective of the means placement of the loop therealong.
35 for attaching the ?exible supporting elements l
The clip proper may have a crimp 36 (Fig. 3) 35
to the edge of a slat, while
formed in the lower ?nger thereof and adapted
Fig. 5 is an elevational detail of a supporting
to press into a slot 31 formed in the bottom sur
palr including one chain and one iabric cord.
In Fig. 1 herein we have chosen for purposes
40' of illustration a type of Venetian blind structure particularly shown and described in our
(lo-pending application Serial No. 122,793, ?led
face of the slat Hi, this type of clip structure
being particularly set forth in our co-pending
application Serial No. 122,795, ?led January 28, 40
1937, for a clip. This construction facilitates
slipping the clip onto the edge of the slat, and
January 28, 1937, 11°- Which reference may be
had for a more detailed description of certain
45 of the‘ operating and control mechanisms here-
likewise removing the clip so that the slats may
be cleaned or removed for purposes of repair
inafter referred to.—
In general the above mentioned blind structure includes a plurality of slats "I suspended
in spaced relation between pairs of cords, l2,
50 which in turn depend from a’ pivotable carriage
it supported by and between a pair, of brackets
l5 andilt secured in the upper corner portions
of a window casing I8 behind a valance plate 20.
The pairs of suspending cords l2 each include
i 55 a front cord I2’ and a rear cord i2" (Figs. 2 and
and the 1ike_
The inner cords H" are not attached to each
of the intermediate slats but only to the lower
most slat It at their lower extremities, there
after passing upwardly through the main open
ing or the loops 33 and on upwardly through 50
collars 38 in the bottom wall of the carriage Ill,
from whence they pass over twin rollers 40 (Figs.
,2 and 3) and through an axial pay-hole 42 in
the pivotal mounting of the roller housing M in
the end wall 85 of the carriage. Within the hous- 65 .
ing 44 is disposed a vertical roller 46, the periph
ery of which is tangential with the center of the by the employment of cord supporting elements
pay-hole £2, and forwardly of the roller ‘it is such as the cords I2’ and I2" herein, and the
special attaching devices in theform of the eye
a horizontal roller 58 over which the several rear
cords 12" pass from the vertical roller 46 out let 'sleeves 22 and the clip loo'ps 33, together with
the common or union clip 59, and while changes
through the bottom of the housing 415 for em
may be made in the speci?c illustrative structure
gagement with a union clip 50.
described herein, we do not intend to be limited
The clip 50 is a stamping having a hemispher
ical cord seat 52 with a bottom opening through ' to such details'except as may be‘ provided in the
10 which the knotted extremity 9' of the pulley cord
8 extends. The cord seat 52 is joined by ribs 53
to a widened upper body portion bent back upon
itself to provide a bight 5t through which an
oblong wire loop 55 is passed and which in turn
15 engages a plurality of eyelet sleeves 22" crimped
onto the upper ends of the back cords i2" as they
issue from the bottom of the roller housing M.
In this manner a unitary pull cord 8 is attached
to the several rear cords l2” so that the latter
may be raised simultaneously for the purpose of
raising the lower slat i3 against the intermediate
slats It so as to fold the latter in gathered rela
tion up under the carriage it. As an appreci~
able pull is exerted upon the cord 8 in this oper
25 ation, it is found desirable to secure the overly
ing end 50' of the widened body portion of the
union clip to the main body portion by means
of a screw 56 threaded into the main body portion
of the clip.
It will thus be evident that we have provided
a novel blind structure in which the blind slats
are supported between pairs of ?exible members
in the form of cords, and additionally we have
provided novel means‘ for attaching these cords
35 to the several slats and also to the operating
mechanisms of the structure. It has heretofore
been common practice to support the blind slats
by means of fabric tapes, and various devices
have been arranged for manipulating these tapes
in such manner as .to tilt the slats and otherwise
control the operation of the blind, but these tapes
are not suited to the type of control mechanism
disclosed herein and with which the present novel
slat supporting means is intended to be used.
In applicants’ co-pending case ?rst mentioned
above, the supporting means is in the form,of
light chains, and while. for most‘ purposes these
chains are very desirable and represent an im
portant advance in the art, they have a tendency
50 to create noise when the blind structure is vi
appended claims.
Having thus described our invention, what we 10
claim as new and desire to protect by Letters
Patent is:
1. Means for attaching blind slats to thin sup
porting cords, said means including a removable
attaching member having a bight portion and 15
adapted to ?t over the edge of a slat, and a looped
member passing through said bight portion and
having free end portions bent back upon them
selves to form axially aligned and substantially
closed loops ?rmly embracing said cord, the main 20
loop opening of said looped member being large
enough to permit free passage therethrough of
another cord similar to said ?rst-mentioned cord.
2. Means for attaching blind slats to thin sup
porting elements,,said means including an at 25
taching clip having a bight portion and adapted
to slip over the edge of a slat, a loop member
passed through said bight portion and having
free end portions wound around said supporting
element and ?rmly gripping the latter so as to 30
support the loop in a plane substantially normal
3. Slat attaching means for Venetian blind‘
structures, said means including a clip adapted to
?t edgewise onto a slat and a loop member piv
element so as to support said loop at substantially
right angles to said element.
4. In Venetian blinds having slats and sup
porting cords therefor, means for attaching the
slats to the cords and including a U-shaped clip
member adapted to ?t over the edge of‘a slat 45
and having a bight portion normally parallel
. to the edge of the slat, a loop member pivotally
engaging said bight portion of the clip and hav
ingyits opposite free end portions turned back
brated or shaken to any considerable degree, as, , upon itself to provide substantially aligned open
ings throughrwhich said cord is extended, said
for example, in installations on rolling stock in
edge portions being crimped into substantially
cluding Pullman cars and the like.
In the form of arrangement shown in Fig. 5, rigid engagement with said cord so as to sub
55 we employ a simple outer chain I2'” such as
stantially prevent relative movement of the cord
and said loop.
disclosed by our above-mentioned co-pending
- 5. Means for attaching supporting cords ‘to
cases, while the companion element is a fabric
cord I24. By. this arrangement the nesting or Venetian blind slats, said means including a’ loop
of the slats is quietly e?‘ected as the member having free end portions turned back
cord I24 moves over roller 40', and this cord, upon themselves around said cord and grippingly
being attached only at its extremities, does not engaging the latter, and means'pivotally attach
create any disturbing vibratory noise or chatter ing said loop to an edge portion of said slat with
said loop normally lying in the plane of the slat
against either its companion chain or the slats.
By our present invention we have retained all
of the desirable features of. the chain type of sus
pending means and at the same time eliminated
the possibility of 'noise from excessive vibration
otalxly engaging said clip'along an axis parallel
to the edge of said slat, said loop having free
end portions turned back in opposite directions
and ?rmly embracing a ?lamentary supporting
and the opening in said loop being large enough
to provide for the free passage of a cord ele
ment similar to said ?rst-mentioned cord.
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