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Патент USA US2109072

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Feb. 22, 1938.
D, V. NELSON
2,109,072
WALL CONS TRUCTION
Filed Feb. 18, 1957
4
v
.
2,109,072
Patented Feb. 22, 1938
UNITED STATES
PATENT OFFICE
2,109,072
WALL CONSTRUCTION
David V. Nelson, Chicago, 111.
Application February 18, 1937, Serial No. 126,344
3 Claims. (CI. 72—46)
My invention relates in. general to building suitable or preferred construction embodying
construction and has more particular reference
to the provision of means for and method of pre
venting transfer of sound through walls or par
5 titions.
' An important object of the present invention is
to provide an improved wall structure particular
1y adapted for use in partitions or walls whereby
relatively large areas in buildings are subdivided
10 to form smaller rooms, the wall structure serv
ing to substantially prevent the transfer of sound
through the partition.
Partition walls constructed in previously erect
ed buildings have a tendency to shrink, thereby
' producing small cracks or interstices between the
upper ends of the partition walls and the ceiling
of the building in which the same are erected. A
considerable volume of sound may be transferred
through such small interstices as and when the
same develop and it is an important object of
20
the present invention to provide means adapted
for incorporation in a partition wall especially at
the upper edge thereof whereby to maintain the
wall in sound-tight condition regardless of
shrinking, .the structure of the present invention
being also applicable at the side edges of the wall
[0 in
in order there to accomplish a similar sound ex
cluding function.
Another important object is to provide relative
1y inexpensive means adapted for assembly in a
P.v
partition wall and self-adjustable to maintain
the wall in soundproof condition regardless of
shrinkage.
‘These and numerous other important objects,
advantages, and inherent functions of the in
vention will become apparent as the same is more
fully understood from the following description
which, taken in connection with the accompany
ing drawing, discloses preferred embodiments of
in the invention.
Referring to the drawing:
Figure 1 is a perspective view of a building
structure embodying my present invention;
Figure 2 is an enlarged sectional view taken
substantially along the line 2--2 in Figure 1,
45
showing the sound excluding device of my pres
ent invention in its initial assembled position;
Figure 3 is a similar sectional view showing the
relative position of the device after wall shrink
age has occurred; and
5
Figure 4 is a sectional view illustrating a modi
?ed form of the invention.
To illustrate my invention I have shown on the
drawing a basic building structure I 1 comprising
a floor I3 and a ceiling l5 which may be of any
usually a so-called tile arch I1 and means I9
suspended on the arch and forming a ceiling
surface.
In such a basic building structure, it is often 5
necessary to subdivide the floor area thereof by
means of partition walls 2| which, of course, may
be of any desired construction, the walls 2! shown
in the drawing comprising hollow tile blocks 23
which are or may be erected on edges shown in
order to- form the partition Walls. These walls, of
course, may be surfaced with layers of plaster
or other suitable ?nishing material 25 and base
boards 2‘! of any suitable or preferred material
15
may be applied.
Partition walls of the character mentioned,
after being built, are susceptible to shrinkage
which may produce cracks between the ceiling
l5 and the upper edges of the walls. Wall
shrinkage may also produce cracks between the
side edges of the walls and the surface of abut
ting walls. Cracks or openings of this character
are undesirable, particularly in office buildings,
since a considerable volume of noise may be
transferred between the adjacent rooms- through 25
such openings. To overcome this defect, I pro
vide means 29 incorporated in the wall structure
at the places where cracks are apt to develop as a
result of wall shrinkage. The means 29 comprises
an expansible ?ller embodying preferably felt
like material 3!, the filler means being adapted
at all times, to maintain‘clos'ed against sound
transfer any opening which may develop due to
wall shrinkage.
.
In the illustrated embodiment, the expansible 35
?ller 29 comprises a pair of cooperating channel
shaped strips 33 and 35. The strip 33 in the em~
bodiment illustrated in Figures 2 and 3 comprises
preferably a sheet metal strip bent to form up
standing, spaced-apart walls 31 and a bottom 40
39, the central portions 4| of which may form a
depressed groove extending longitudinally of the
strip for the purpose of strengthening the same
against lateral bending.
>
Offset lugs 43 also may be formed at the upper
edges of the wall portions 31. The element 33
may be mounted along the upper edge of a par
tition wall 2| and secured in place by means of
fastening elements 45 which may comprise, as
shown in Figures 2 and 3, lengths of wire secured
at one end to the offset lugs 43 and at the other
to nails or‘ other fastening elements 41 driven into
the opposed sides of the wall forming elements
23. The element 35 may comprise a strip of ma
terial, the opposite edges of which are ?anged as
2
2,109,072
at 49 so that the strip 35 may fit within the ele
ment 33 with the ?anges 49 abutting the flanges
37. The resilient material 3| comprises a layer
adapted to be assembled between the elements 33
and 35 with the opposed edges of the layer 3|
extending between the ?anged portion 31 and
113 of said elements. The central element 33 also
is preferably ?tted upon the face and side edges
of a mounting strip 5|, preferably comprising a
10 strip of wood although other suitable material
may be utilized as a mounting for the element
33. The element 33 and the mounting element 5|
are perforated as at 53 to receive a holding stud 55
having a stem insertable through the opening 53
15 and having an end making threaded engagement
with a nut 51 on which is pivotally carried a clip
59. The clip may be rotated on the nut 51 to a
position parallel with respect to the stem 55
thereby permitting the clip and the stem to be
inserted through an opening 6| formed in the
ceiling above the upper edge of the wall 2|.
After the stem and clip have been thus assem
bled on the ceiling, the clip 59 may be drawn
to a position extending at right angles with re
spect to the stem 55 by manipulating the stem
through the block 5| from the under side of the
ceiling. The block and the element 35 carried
thereby may then be snugly secured on the under
side of the ceiling by tightening the stem 55 in
the nut 51 by means of a screw driver or other
turning element applied to the head of the
stem 55.
After the parts have been assembled in posi
tion as shown in Figure 2 the ?nishing layers 25
35 may be applied on the opposite sides of the wall
to cover the expansible assembly 29. Should the
wall shrink, the parts 33 and 35 may separate
as indicated in Figure 3. Such separation, how
ever, Will not disturb the mounted position of the
.40 resilient strip 3|, the opposed ends of which will
remain in position clamped by and between the
?anged portions 31 and 39 of the elements 33
and 35 thereby closing the space between the
upper end of the wall and the ceiling at all times
45 by means of the resilient material 3|. The pock
ets 63 which may develop between the upper
edges of the facing layers 25 and the ceiling as
a result of wall shrinkage may, of course, be ?lled
with plaster or other ?lling material in order to
'50 overcome the cracked appearance, however, such
?lling is not at all necessary to prevent sound
transfer which is blocked by the material of the
resilient layer 3|.
The modi?ed arrangement shown in Figure 4
eliminates the necessity of mounting the ele
ment 35 on a block 5|.
In the embodiment
shown in Figure 4, element 35 has ?anged edges
69 and is assembled with the back of the element
35 facing upon the ceiling above the wall 2| with
60 the layer 3| secured by and between the ceiling
and the element 35. Opposed edges of the layer
3| are wrapped around the ?anges 69 as shown
at ‘H and said wrapped ?anges are secured in
elements shown in the embodiments illustrated
in Figures 2 and 3 do.
It is thought that the invention and its numer
ous attendant advantages will be understood
from the foregoing description and it is obvious
that numerous changes may be made in the
form, construction, and arrangement of the sev
eral parts without departing from the spirit
or scope of the invention and without sacri?cing
its attendant advantages, the forms herein de 10
scribed being preferred embodiments for the
purposes of demonstrating the invention.
What I claim is new and desire to secure by
Letters Patent of the United States is:
1. Sound excluding means adapted for as 15
sembly in the opening between a Wall or ceiling
and the abutting edge of a partition, comprising
a pair of cooperating elements adapted for at
tachment, one on the facing edge of the partition
and the other on said wall or ceiling opposite
said facing edge, including a channeled element
having spaced, opposing, channel-de?ning sur
faces, and a cooperating element having spaced
portions adapted to slidingly inter?t with and
abut the opposing surfaces of the channeled ele
ment whereby to permit relative separational
movement between the elements, and a resilient
strip of felt-like material wrapped about the said
cooperating element and having its opposed edges
held each by and between one of said portions of
the cooperating element and one of said sur
faces of the channeled element.
2. Sound excluding means adapted for assem
bly in the opening between a wall or ceiling and
the facing edge of a partition abutting said wall
or ceiling, said means comprising a pair of co
operating sheet-metal elements adapted for at
tachment, the one along the said facing edge of
the partition and the other on said wall or cell
ing opposite said facing edge, one of said sheet 40
metal elements forming a channel having spaced,
opposing wall portions and the other cooperat
ing element having marginal ?anges adapted to
slidingly inter?t with and cooperate with the op
posing surfaces of the channel whereby to permit 45
relative separational movement between the ele
ments, and a resilient strip of felt-like material
wrapped about the cooperating element and hav
ing its opposed edges held each by and between
one of said marginal ?anges of the cooperating 50
element and one of the surfaces of the chan
neled element.
3. Sound excluding means adapted for assem
bly in the opening between a wall or ceiling and
the facing edge of a partition abutting said wall
or ceiling, said means comprising a pair of 00
operating sheet-metal elements adapted for at
tachment, the one along the said facing edge of
the partition and having marginal portions ex~
tending outwardly of and de?ning Channels sub 60
stantially at the opposing faces of said partition,
the other sheet-metal element being adapted for
attachment on the wall or ceiling and having
pockets ‘73 formed in the opposed edges of the
element 33. These pockets 13 comprise grooves
extending longitudinally of the element 33 which
also is formed with ?anges 15 at its extreme mar
marginal ?anges in position to extend in the
marginal channels of the partition-mounted ele
ment whereby to permit free, relative separation
ginal edges, said ?anges being adapted to be
embedded in the surfacing layer 25 or to be
silient strip of felt-like material having its op~
posed edges extending about the marginal ?anges
of said other element, each edge of said strip
sible elements 33 and 35 and the resilient sound
being compressed and held in one of said chan
nels by a marginal ?ange of said other element.
70 attached on the wall in a fashion similar to
that illustrated in Figures 2 and 3. The expan
deadening layer 3| function in the embodiment
shown in Figure 4 exactly as the corresponding
al movement between the elements, and a re
DAVID V. NELSON.
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