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Патент USA US3067855

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Dec. 11, 1962
E. H. SMITH ETAL
3,067,845
MULLION CONSTRUCTION
Filed March 20, 1961
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United States Patent
F ICC?
2
1
3,067,845
Elmus Hanby Smith, and George T. Hoyle, J12, Knoxville,
MUIJLIUN CONSTRUCTIGN
Tenn., assrgnors to American Duraiite, Inc., London,
Tenn., a corporation of New York
Filed Mar. 20, 1961, Ser. No. 96,749
4- (Ilaims. (Cl. 189-75)
This invention relates to a window construction, and
3,67,845
Patented Dec. 11, 1962
by the thickness of the window frame materials, i.e.,
extruded aluminum. The three rib portions form thereby
a channel disposed in its entirety on the web side of
?anges 22.
A particular point has been made of how the above
described ?anges, ribs and rib portions are not strictly
perpendicular. The angles between rib, ?anges and web
deviate from perpendicularity a minor but signi?cant de
gree in order to provide an inter-?t between the window
more particularly to a window construction wherein a 10 frame elements and the mullion 10 as shown in FIGURE
1 so that a multiplicity of windows 80, 99‘ joined by mul
multiplicity of windows are joined together through a
lion 1i} constitute a large bowed window such as is gen
novel mullion construction. In a preferred embodiment,
erally shown by FIGURE 3. To this effect the curved
the mullion itself is constructed so as to provide for a
surface 23 presented as the outer face of mullion In is
bowed window arrangement.
The principal objects of the instant invention are to 15 desirably fashioned in the shape of a circular arc with
web 12 extending radially inward toward a center which
provide an improved type window frame which can be
lies beyond the extent of web 12.
readily manufactured and easily assembled in multiple
Details of the inter-engagement between mullion 10
units with the aid of an improved type of mullion‘ without
and the frame elements of a pair of window frames 20,
bolts or screws such as are commonly employed with
mullions.
20 30 are shown in FIGURE 1. The window frame mem
bers 20 and 30 are shown in their normal side-to-side posi
The above and other objects of the invention will be
tion as a pair of identical members which comprise in
come apparent in the following detailed description taken
cross section a ?at elongated web 42 from which up
in conjunction with the accompanying drawings in which:
W FIGURE 1 diagrammatically illustrates the cross sec
stands at least one pane supporting rib 44.
This pane
tlon of the inter-connection between frame elements of 25 supporting rib and associated structure may be of any
suitable construction since this feature is not germane
adjoining window members; and
_ FIGURE 2 diagrammatically illustrates the cross sec
to the instant invention.
Su?ice it to say that rib 44
is of a construction suitably adapted to secure a glass
tron of an improved mullion adapted for joining properly
pane 46 in window frame 20‘. For completeness, FIG
shaped window frame members into a bow window; and
FIGURE 3 diagrammatically illustrates the extent to 30 URE 1 also shows an upstanding ?ange 48 which in co
action with appropriate portions of rib 44 serves to attach
which the windows may be bowed through use of'the
screen, sash, and/ or alternatively storm sash to window
mullion illustrated in FIGURES 1 and 2; and
frame 20.
‘
FIGURE 4 diagrammatically illustrates an alternative
While the pane mounting structure on the one side
mode of mullion construction; and
FIGURE 5 diagrammatically illustrates in cross sec 35 of web 42 in the connected window frames 2t} and 30
need not be identical, the mullion side of each web 42
tion theinter-connection of several windows through the
must be identically adapted to inter-connection through
mullion of FIGURE 4.
mullions constructed according to the practice of the in
Referring now to FIGURE 2 wherein shown a bow
stant invention. Thus in the frames 26 and 30, each
window mullion element constructed according to the
end of the web 42 terminates in a ?ange member 52
‘practice of the instant invention, it may be seen that
and 54, respectively, extending perpendicular to web 42
mullion It) is an elongated member adapted to extend
in a direction opposite that of the pane retaining rib 44.
the entire length of the interconnection between ad
Flanges 52 and 54 terminate, respectively, in perpen
jacent window frames 2i,“ and 3t}. In cross section, mul
dicular ribs 56 and 58 which extend in the direction of
lion element 10 is made up of a ?at elongated web 12
web 42 and towards each other. A U-shaped channel
which terminates at one end (i.e., the inside end) in a
62 is thereby provided by ?ange 52, rib 56 and the ter
pair of oppositely directed ?anges 14 which extend out
minal portion of web 42 in which rib portion 32' of mul~
almost perpendicular to web 12. In turn, each of ?anges
lion 1t) ?ts. In turn, rib 56 on the window frame ?ts into
14 terminates at an almost perpendicular rib 16 which,
the channel formed by rib 24» of mullion it).
as may be seen from FIGURES l and 2 in the drawing,
The other or inside end of web 42, its ?ange 54 and
extends in a direction opposite to the web 12 and which
rib 58 similarly provide a channel 64 into which rib 16
together with flanges 14 form a single relatively broad
of mullion It) inter-?ts. The relatively broad-base U
based U-shaped channel 18 astride the terminus of web 12.
shaped channel 18 surmounting the terminus of web 12
The other end of web 12 (i.e., the outside end) termi
of mullion 10 provides a seat for the ribs 58 from window
nates in a second pair of oppositely directed ?anges 22
which together surmount the second terminus of the web 55 frame 20 and window frame 30.
In the speci?c mullion embodiment illustrated in FIG
and present a unitary gently curved surface as the out
URES 1 and 2 the break angle between window sections
side face of the mullion. Flanges 22 extend out almost
is 13 degrees. Larger windows made up of a multiplicity
perpendicular to web 12. Each ?ange 22 terminates in a
of window frames 80 and 90, as illustrated in FIGURE
rib 24 which as a whole is constructed to form a U-shaped
\ channel entirely on the web side of ?anges 22 and opening 60 3, form into a substantial bow which exemplarily can.
amount to a radial depth of about 23 feet (radial line 65)
toward the ?anges. As may be seen from FIGURES
l and 2, rib 24 is comprised of a ?rst rib portion 26
which extends generally perpendicularly from the chan
in a cord length (line 75) amounting to about 133 feet.
For multi-window construction where a bow window
is not desired, employment of the modi?ed mullion shown
tance. Thereafter it bends into a second rib portion 28 65 in FIGURE 4 permits construction of a straight window
nel in the same direction as the web 12 for a short dis
which extends generally perpendicular to ?rst rib por
tion 26 in a direction away from the ?ange members 22,
terminating in still a third rib portion 32 which generally
extends perpendicular to its connecting rib portion 28
assembly.
Mullion 100 comprises in cross section a ?at web 112
terminating at each end in a pair of oppositely directed
?anges 114 extending perpendicular to web 112. In
in the same direction as the ?rst rib portion 26 and 70 turn, each ?ange 114 terminates at a perpendicular rib
116 which extends in a direction away from web 112.
parallel thereto. However, the length of third rib por
This construction results in the formation of a relatively
tion 32 is shorter than the length of ?rst rib portion 26
3,067,845
3
broad based U-shaped channel 118 bounded by the ?anges
112 and ribs 116 surmounting each terminus of web 112.
As shown in FIGURE 5, inter-connecting window
frame members 20 and 39 with mullions 190 results in a
[1.
one pane supporting rib extending from one surface of
said web; and end ?anges on said web extending perpen
dicularly therefrom in the opposite direction from the
pane supporting rib, each end ?ange terminating at a rib
straight window assembly. At each mullion connection 5 extending from the ?ange in the same direction as said
the rib ends 116 of mullion 199 are seated in the U-shaped
channels 62 and 615 of window frame members 20 and 30.
Correspondingly, rib members 56 and 58 of each of win
dow frames 29 and 36 are paired to set in the relatively
broad-based U-shaped channel 118 of mullion member
100. In this manner the mullion described and illustrated
in FIGURES 4 and 5 permits any member of window
frames 24} and 35,‘ to be assembled in a straight line rela
web, thereby forming a pair of opposing U-shaped chan
nels on the side of said web opposite from said pane
supporting rib, said inter-connection being a pair of the‘
above described frame elements joint in ?ange end to
?ange end abutment by a hereinafter described mullion,
said mullion comprising, in cross section, a ?at web
terminating at one end in a pair of oppositely directed
?anges with each ?ange ending at a rib extending in a
direction opposite to the web whereby a single relatively
While certain preferred embodiments of the instant in 15 broad-base U-shaped channel is formed by the ?anges
and rib on the one terminus of the web, the other end of
vention have been illustrated and described above, it is
the web terminating in a pair of oppositely directed ?anges
to be understood that various minor modi?cations can
which surmount the terminus of the web in the form
be made without departing from the spirit of the invention
of a unitary gently curved surface, each ?ange terminat
and the scope of the appended claims.
ing in a rib which extends away from the ?ange in the
What is claimed is:
tionship.
1. A mullion element comprising in cross section a ?at
web, terminating at one end in a pair of oppositely di»
rected ?anges with each ?ange ending at a rib extending
in a direction opposite to the web whereby a single rela
same direction as the web a short distance, then forms
a U-shaped channel disposed entirely on the web side
of the ?anges and opening toward the ?anges, the rib
ends of said mullion being seated in the U-shaped channels
tively broad-base U-shaped channel is formed by the 25 of said frame elements and the rib ends of said frame
elements being seated in the U-shaped channels of said
?anges and ribs on the one terminus of the web, the other
mullion to thereby secure said mullion and window frame
end of the web terminating in a pair of oppositely directed
members together.
?anges which surmount the terminus of the web in the
4. A window construction as in claim 3 wherein said
form of a unitary gently curved surface, each ?ange ter
minating in a rib which extends from the ?ange in the 30 curved surface is a circular arc centered beyond the op
posing end of said web.
same direction as the web a short distance, then forms
a U-shaped channel disposed entirely on the web side
References Cited in the ?le of this patent
of the ?anges and opening toward the ?anges.
2. A mullion element as in claim 1 wherein said
UNITED STATES PATENTS
curved surface is a circular are centered beyond the op
posing end of said web.
3. In a window construction, a wall having a window
opening therein ?lled by a window made up of a plu
rality of inter-connected window frame members each
of which includes at the inter-connection a window frame 4.0
element comprising in cross section: a ?at web; at least
1,926,160
2,810,941
2,990,922
McKee ______________ __ Sept. 12, 1933
Mainieri _____________ __ Oct. 29, 1957
Rudisill ______________ __ July 4, 1961
532,382
Belgium _____________ __ Oct. 30, 1954
FOREIGN PATENTS
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