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Патент USA US2137439

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Nov.v 22, 1938-.
w. D. BAYLEY
WINDOW ASSEMBLY
Filed oct. 25, 1937
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_ Nov. 22, 1938.
w.- D. :3m/LEY-
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2,137,439
WINDOW ASSEMBLY
Filed obt. 25, 19:57
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INVENYUR.
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MM Ä.
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BY
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Patented Nov. 22, 1938
2,137,439
‘_UNITED STATES `pg'rlszNTorifice:
2,137,439
WINDOW ASSEMBLY
William D'. Bayley, Springfield, Ollio
Application october 25, 1937, serial No. 170,873
_
`
24 Claims.
This invention» relates to detention window as
(Cl. 18S-‘64)
`providing interlocking detention bars, which have
¿ `semblies and in `more particular -to windows
wherein detention means are incorporated into
`the window assembly.
been shown and described in my application
Serial No. 82,847. T'his has been further accom
plished by providing a closure unit for the venti- .
lating area attachable in the ñeld to the main ;
`
This application is a` continuation-:impart of
my copending` application Serial No. 82,847 filed ‘ structure and providing capping members of tool
June 1, 1936, for Window assembly, wherein the resistant material `for the muntin bars.
claims relate to the interlocking arrangement of
` In the present modification the vertical muntin
4the bars, the key bars, etcetera, without-refer-V bars Ill constitute eye bars having openings or
`l0 ence tothe capping members.
eyes l2 longitudinally disposed with respectto ,
. _l
i
. “ `A`n `’olliject of this invention is to provide a winthe web of ~.the vertical bars l0, as more fully
"dow assembly that is cheap, eflicient, dependable disclosed andxclaimed in the above referred to
‘and sufficiently strong for normal usage.
copending application.
`‘Another object of this invention is >to provide a
1115 fclosure assembly that may be hooked into posi
tionïin registry with the Ventilating area irre
spective of which spaces have been left vacant
`for ‘that purpose.
`
`
Another object’of this invention is to provide
capping members of> tool resistant material for
vsome of »themuntin‘ bars, so as to protect the
"same Vfrom’willful and unlawful severance by in
mates.
'
'
'
and I8, the former receiving `the glazing 20 and
the latter‘embedded in the masonry.
'
construction of parts, the `combination thereof
andthe ‘mode of operation, as will become more
“apparent from the following description.` -
`
Fig-_ 1 is a perspective view of my preferred em
’
“bodimentp
‘
-
f
Fig. 2 is :a vertical sectional view taken sub
The bars ,
14 may ’also be provided with eyes or openings
`similar to and aligned with the openings in the
l "Other objects and advantages `reside inthe ` ‘
..25
These vertical bars lll
`may be T-shaped in cross sectional area, or any
other suitable shape. As the side bars I4 are em- „j 15
bedded in the masonry, these bars need not
necessarily be the same shape as the vertical bars
I0; . but may have oppositely disposed flanges I6
Webs of the vertical bars lll. `
The horizontal ‘muntin bars 22 constitute the 1
needle bars and may be T-shaped in cross sec :25
tional area, the stemof the T being provided with
a downwardly projecting ñange 24 at one side
thereof, to give rigidity to the ‘bar to provide
‘ protection to the key bars, thereby protecting the
bar against erosion caused by rain, snow or mois- n 30
stantially on the line 2--2 of Fig. l.
.
ë ' Fig. 3 is a `horizontal sectional _view taken sub
'through the eyes l2 of the eye-bars I8 and locked
stantially on theV line 3--3 of Fig. l.
`in position, `»as more fully disclosed in my co
1»
Fig. @is a sectional view taken substantially on
the lined-#4 of Fig. 1.
-
‘
.
Y
ture from the air. . The needle bars 22 are passed " `
pending application `Serial No. 82,847.
Rectangular duo-functional key and detention ._
Fig. `5 is a sectional view of >another modifica
1 tion taken on the line 5_5 of Figures 6 and 'l'.
`bars 32 are then passed through the enlarged
.- ~ Fig. 6` is a sectional view taken substantially on
hthe line 6-6 of Fig. 5.
.
in position. The key bars 32 extend horizontally
portion of the eye l2, so as to hold the needle bar
in close spaced relation and preferably on the
Fig. >'l is another horizontal sectional View
taken` substantially on the line 'l--Íl of Fig. 5.
`32 may be nestled in the corner formed by the ‘
` Fig. 8 is a sectional view taken substantially on
-web and the- downwardly projecting fiange 2li.`
«theline 8-~8 of`1'l‘igu`res ô‘and 7.
n
‘ ‘
.Figure 9 is a cross sectional view taken
stan'tially on the line 9_9 of Fig. 2.
In some types of duo-functional window as
semblies where "the‘transversely arranged bars
under side of the muntin‘bars 22. The key barsy 4,0
When the key bars 32 are associated with deten
tion windows, these key bars` may be made of
tool resistant material and thus interfere with< 45
the easy severance of the muntin bars extending
in parallel relation thereto. `By -this structure
higher priced material is confined to the key
bar, cheaper material `being used in the eye bars,
function both as, detention bars and as muntin ` -the
--bars,' ‘diñiculties have been encountered in secur
ing the necessary cheapness of construction with
out sacriñcing the appearance and eñiciency of
thereby eiïecting ,economy and cheapness. `The
the window. .This is further complicated when
vertical muntin bars YI l) vare not protected against
sawing or severance by the key bars 32.
_providing adequate protection across the more
lvulnerable area, that is, across the Ventilating
.For institutions used in conñning or excluding
“hard-boiled” criminals or others, additional
ÍÍ‘area, fi'hishas.V been accomplished in part by _protection may be necessary. Without additional 55
à
2,137,439
these are not severed.
If tool resistant bars were extended in par
extending across the top of the Ventilating area.
Suitable holes 52 extending through the flanges
of the muntin bars lll permit the pouring of fused
metal to weld member 50 to the muntin bars.
'I'hese holes 52 may be positioned between the
intersection of the transversely disposed muntin
allel relation to the vertical muntin bars and
bars, so that the same weld unites three parts
protection it is possible for the inmates to sever
the vertical muntin bars IU, the severed ends giv
ing the inmates a good leverage to twist, bend or
deflect the horizontal detention bars even though
positioned in a manner similar to the horizontal
key bars 32,. such bars would interfere with the
10 glazing of theY glazed spaces of the window. In
together without leaving exposed holes and with
out leaving exposed welds, that is, the vertical and
the horizontal bars together with the capping
the modification disclosed in Fig. 4, bars 40 of
member 5I are united by a single weld extending
tool resistant material extend in parallel relation
and in close contact with the muntin bars I8 ex
tending across the Ventilating area, the tool re
between the flanges of the vertical and the hori
15 sistant bars 40 terminating at the boundary of
the Ventilating area. The detention bars 40 pre
vent the easy cutting of the portions of the mun
tin bars I0 functioning asfdetention'barsfex'
tending across the Ventilating area, which is the
20 more vulnerable portion of the window.
The detention bars 4U protect the more vulner
able portion of the window. However, Vthese do
not take care of the portions of the muntin bars
extending across the glazed areas of the window.
25 The portions- of the muntin bars vl() extending
across the glazed area are protected by capping
members 5U overlying the flanges of the muntin
bars Il; Bars of other shapes can be used equally
as well in many types of structures. These cap
'30 ping members 50 prevent‘the severance of the
muntin bars l0; but do not interfere with the glaz
ing of the> fixed spaces', as the capping members
50 are placed on the inside of the glazing along
the flanges. The capping members 50, which are
35 preferably made from tool resistantA material, are
very effective in preventing the inmates from sev
erlng the muntin bars above or below or to either
side of the Ventilating area.
The capping mem
zontal'bars and terminating in union with the
capping member 5|. The putty holding the glaz
ing conceals the Weld and protects it from the
elements.
A clearance 59 is provided above the flange 55,
so as to permit the insertion of the closure frame
50 by projecting the flange 55 into the clearance
59, moving the lower portion of the closure frame 20
towards the main frame over the sill 64 to permit
the closure to drop into position.r The clearance
59 may ñrst be filled with a suitable plastic to
provide weather tightness and rigidity of the clo
sure frame. The crevice between the down 25
wardly projecting flange of the closure 60 and
the sill 64 may be iilleld with suitable plastic o
yieldable material 6I.
‘
In the present instance the closure includes a
movable member not shown, movably attached t0
the frame 50. A sill 54, interlocking the upward
ly projecting flange of the muntin bar extending
across the bottom of the Ventilating area, sup
ports the bottom of the frame 60. The closure
that is movably mounted may be pivoted at the
bottom, at the top, at either side, in the center
or otherwise mounted in position.
' Referring to the modiñcations disclosed in Figs.
more massive structure, as the vclosure for ‘the
5 to 8 inclusive, the horizontal T-bars 10 have
been provided with suitable openings for the re
40
ception of the vertical muntin bars 16. The
flanges 80 are arranged in flush relation with re
spect to the flanges 82, as has been more fully
described in my copending application Serial No.
Ventilating area would probably project further
outwardly away from the main structure than
the closure in akwindow where the> capping mem
82,847. The needle bars 1B, after being properly 45
positioned as described in my copending applica
tion, are locked in position by key bars 84, pref
bers do not extend across the Ventilating area.
If the capping members 50 were extended across
or rectangular in cross sectional ar-ea.
bers 5_0 could extend uninterruptedly from the
40 top to the bottom ofthe window across the ven
tilating area, providing the closure frame is pro
vided with clearance for these capping members
50. This, however, will result in a thicker or
the ventilatingarea the muntin bars 40 of tool
50
resistant material could bev eliminated for some
types of structures. The sumof the thicknesses
of the portions of the flanges extending in a di.
_rection normal to the glazing is considerably
55 greater than the portion> of the capping member
erably made of tool resistant material and square
The key
bars 84 are preferably aligned and symmetrically
disposed with respect to the webs and the ñanges
of the muntin bars 16, so that the muntin bars 16
and the key bars 84 cooperate to form a pair of
channels, one on either side of the webs of the
muntin bars 16. In some structures the dividing
59 extending parallel to the'glazing and over
`web 16 may be offset, so as to provide a shallow
-lying the flanges. Thus, the portion of the cap
channel on one side and a deeper channel on the
ping membersextending in a direction normal to
the glazing is much stronger than-the portion
60 forming ‘the bottom of the channel,
.
lìlach‘of.` the capping members 50 located above
the vez-itilatingV area may be provided with down
jwardly extending portions 5l, terminating in a
55.
other side to facilitate glazing. By arranging the
flanges and the key bar 84 in symmetrical rela
-tion, the offset relation of the web is inconspic‘ 60
uous after the window is completed.
For this type of construction it is desirable
that the maximum width of the T-bars 16 be some
what less than the width of the web of the hori
zontal bars T0. The key bars B4 are positioned
hook or lip portion‘ñßjarranged in spaced rela
tion from the downwardly projecting flange of
the horizontal muntin bar 22 forming the boun -along the outer. edge of the webs of the T-bars
dary along the top of the Ventilating area.
16, so as to have sufficient clearance for the
A fixed frame 60 supports'a movably mounted insertion of the glazing. That being the case,
closureoverlying the Ventilating area; The frame the duo-functional detention and T-bars 84 may
50> terminates in an upwardly projecting flange extend uninterruptedly across the VentilatingÀ 70
55 that is seated underneath the lip 53. The area and the glazed spaces.
In this modification it is not absolutely neces
>flange 55 is preferably provided with a longitu
sary in order to provide proper protection across
dinalrecess 5l, supporting suitable sealing ma
terial Vclosing the juncture between the top of the the Ventilating area to have the muntin bars
closure frame 6U and the horizontal muntin bar extend continuously across both the Ventilating 75
3
area and the‘ñxed glazed spaces. The muntin
bars` may terminate at the Ventilating area, there
by saving material and improving the vvisibility
ofthi‘s portion of the window. Suitable detention
meansextending across the Ventilating areaY may
be' used-to provide adequateprotection across th
more vulnerable area of the window.
‘- ‘
In thepmodiñcation disclosed in Figs. 5 and 7,
.transverse detention‘bars 86, which mayphave
10 notches `inthe sides thereof, extend across-.the
Ventilating area and are welded-to the Vertical
`T-`bars.84. The ends of the detention bars 86
are preferably welded to the muntin bars bound
ing the sides of the Ventilating area.
15
. .
In some structures the horizontal bars 86, or
for‘that matter the vertical bars 84, may be
eliminated at the fixed glazed spaces. `‘I_f so,
either the horizontal bars or the Vertical bars, or
both, may beprovided with capping members 58
20 shown in Fig. 6, which capping members are sim
putty or suitable sealingmaterial for sealingf the
‘closure along three sidesV thereof. 'I‘he AVcrevice
formed between the downwardly projecting ñange
92 and the sill B4 is preferably ñlled ,with suit
able plastic> or yieldable material 6|, so as to u.
provide weather tightness.
. "
As member 50 and member. 94, as well as the
sill 64, are preferably made of tool resistant
material, `these members cooperate to prevent the
severance of the muntin bars.`
'
~
.
Although the preferred modification of the
device has been described, it will be understood
that‘within the purview of this invention various
changes may be made in the form, details, pro
portion and arrangement of parts which gener-- l
ally stated, consistin a device capable of carry
ing out the objects set forth, in the novel parts,
combination of parts and mode of operation, as‘
disclosed and defined in the appended claims.
I-Iavin'gthus described my invention, I claim:
1. A detentionwindow' assembly including a
ilar tothose which have already been described in
connection with the modification disclosed in
Figs. 1 to 4 inclusive, and ‘shown in; detail in
plurality of transversely arranged muntin bars
Fig.
some‘of said spaces being glazed leaving‘at least
3.
A
.i
‘
‘
„
In Fig, 8 the capping membersalong the sides
of the window extend in overlapping relation with
respect to the» flanges I8 of the muntin bars I4
bounding the sides of the window, so as to have
`portions of the capping members embeddedin the
30 `masonry of the wall.
In some types of structures
>it is not necessary to‘have the `capping members
embedded in 'theV masonry. The capping mem
_bers could Vthenfterminate in a manner similar
to that shown in Fig. ’7.
.
`
‘
, `'Ii‘he unglazed; Ventilating area is preferably
provided with a closure, only the frame S0 of
.which has been shown, as any suitable movable
_closure may `be mounted upon the frame` 90‘to
`close the Ventilating area.
`
The muntin bar extending across the top of
the Ventilating area is provided with a metallic
capping‘member 94 welded to the upwardly pro
jecting flange through suitable fusing holes or
pockets 96. These fusing holes or pockets 9B are
`preferably located between the juncture of the
dividing the `window into a plurality of spaces,
one ‘space larger than one of said glazed spaces l,
.Vacant1for' a Ventilating area, the muntin bars
aligned with the‘ventilating area terminating at
the‘boundary thereof, some o-f said muntin bars
`consitituting needle bars extending through eyes
of the remaining barsyduoefunctional key and 30
detention barsV arranged in parallel relation with
'respect tothe needle bars and extending through
the eyes lof theY remaining barsto interlock the
nbars in a ñxed relation with respect to each other,
said duo-functional bars extending across the
Ventilating area, additional detention means eX
tending across the Ventilating area'cooperating
with the duo-functional bars to prevent the escape
of a human being therethrough, and tool resistant
means associated with the eye bars to prevent the
-iO
severance thereof.
‘
‘
' @2., In a detention window assembly a plurality
of transversely arranged T-shaped muntin bars
dividing‘the window into a plurality of spaces, at
least some of which are glazed, `and capping mem- l p..
Cl
`uanges of thevertical and the horizontal muntin Y bers of ` tool
bars, so that the weld holds three parts together,
_that is, the vertical and horizontal muntin bars
.,50
-`.and _the capping member 94. Capping members
l5l] and the key bars 84 may also beheld in posi'
tion by `suitable welds passed through fusing i
holes. Again, three parts may be held together.
vby a single ìweld. The capping member 94 is pro
vided with a downwardly projecting flange over
5.55 lying`~ an upwardly projecting flange 92 of the
closureframe 9|).v
The lower‘portion of the closure frame 90 is`
resisting material, overlying the
flanges of some of the muntin bars to deter sev
`erancev thereof,` said VcappingV members having
`flanges extending inwardly in substantially par
”allel relation with respectto-the stems of the
T-bars.
`
‘
50
3. In a detention window> assembly a plurality
of transversely arranged 'F-shaped muntin bars
‘dividing the window into a plurality of spaces,
some of which are glazed leaving a group of
sr'iaces‘vacantl for‘ Ventilating area across which
' the muntin bars extend, means associated with
`supported upon the sill 64> in a manner similar ,the muntin bars extending across the Ventilating
@to that already‘described in connection with the
l60 preferred embodiment.
Sufficient clearance has
been provided so that the closure assembly may
`be placedin‘position byinserting the upwardly
projecting ñange 92 under the downwardly pro
‘area for preventing the escape of human bodies
fthrough the Ventilating area, and capping mem to
bers associated with the portions of the muntin
»bars extending
across the fixed glazed areas to
I
i
deter1 the severance thereof.
fjecting flange or the lip portion of member 94
l. 4. In Va detention window assembly a plurality
and then thelower portion of the frame 9U moved -`of transversely arranged T-shaped muntin bars 65
`toward themain frame and slipped over. the top >dividing the window into a plurality, of spaces,
`of the sill 84 as it is dropped into position. Thus, some ‘of’whi'ch are glazed leaving a group of spaces
it is. seen that the closure for the Ventilating ‘rvacant for Ventilating areav across which the
area `may be placed in position after the window muntin bars extend, means associated with the
has beenïerected in the building, thereby reduc
`ing the cost of production, as it is possible to
have the closure glazed and completely assem
f bled on the jobA or at the factory before the clo
sure and its frame is mounted in position.4
`'muntin bars extending across the Ventilating
area for preventing the escape of human bodies
‘through the same, tool resistant bars arranged in
‘l parallel relation tosome of the portions of the
`muntin' bars extending across the Ventilating
‘The` channel 51 in the closure 9D supports area, and capping members overlying the flanges 75
4
2,187,439
ofthe portion of the T-bars extending across the
iìxedglazed spaces for deterring the severance
thereof.
.
,
i 5. In a detentioniwindow assembly a plurality
of transversely arranged T-shaped muntin bars
of overlapping. the flange of theclosure frame,
said member deterring the severance of the mun
tin bar bounding' the Ventilating area and coop
erating with the lips to hold the closure frame
in
position.
.
‘
Y
dividingrthe window into a 'plurality of spaces,
.9. In a detention window assembly, a pluralit
some of which are glazed leaving a group of
spaces vacant for Ventilating area across which
the muntin vbars extend, detention means ex
a plurality of spaces, said muntin bars having
tending across the Ventilating area forprevent
ing the escape of humanbodies therethrough, and
tool resistant capping >members Voverlying the
flanges of the portions of some of the muntin
bars extending across the ñxed glazed areas, said
of ilanged muntin bars dividing the window into
portions thereof projecting beyondthe glazing,
and capping members of tool resisting material, 10
said . capping members having channels into
which >portions of the muntin bars extend to deter
the severance thereof, the inner walls of the
channel being arranged substantially parallel to
capping members including extensions overlying
the flanges of the bars.
portions of the muntin bars bounding the venti
10'.` In a detention window assembly, a plurality
of muntin bars dividing the window into a plu
rality of spaces, some of which are glazed leav
ing a grou-p of spaces vacant for Ventilating area
across which the muntin. bars extend, portions of 20
lating area.
‘
6. In a detention window assembly a plurality
of transversely yarranged T-shaped muntin bars
dividing thev window into a plurality of spaces,
some of which are glazed leaving-,a group of
spaces vacant for Ventilating area across which
the muntin bars extend,'detention means extend'
the muntin bars extending beyond the glazing of
the glazed spaces, and capping members asso
elated with the portions of the muntin bars ex
ing across the Ventilating area Yfor, preventing
the escape of human bodies therethrough, a
closure for the Ventilating area including a frame
tending across the ñXed areas to deter the sever
having outwardly projecting flanges juxtaposed
extending beyond the glazing and terminating
with respect to some of the flanges ofthe muntin
bars bounding the Ventilating area, and capping
members of tool resistant material overlying the
flanges of the portions of some of the muntin
at the Ventilating area.
lLIn a detention window assembly, a plurality
of muntin bars dividing the window into a plu 30
bars extending over the ñxed glazed spaces, said
capping members including lips overlying the
flanges of the frame so as to holdthe frame in
position.
7. In a detention window assembly a plurality
of transversely arranged T-shaped muntin bars
dividing the window into a plurality of spaces,
some of which are glazed leaving a group- of
spaces vacant for Ventilating area across which
the muntin bars extend, detention means ex
tending across the VVentilating area for .preventing
the’escape of human bodies therethrough, a cl'o'
sure for the Ventilating area, said closure includ
ing a frame having outwardly. projecting flanges
juxtaposed with respect to some of the- flanges of
ance thereof, said capping members bounding at 25
least twosid'es of the portions of the muntin bars
rality `of spaces at least some of which are glazed,
said muntin bars having portions thereof ex
tending Abeyond the glazing of the glazed spaces,
and capping members of tool resisting material
overlying said portions to deter the severance 35
thereof, said capping members having flanges ex
tending inwardly in substantially parallel rela
tion with’r‘espec‘t to the sides of the muntin bars.
12. In a window assembly having a plurality of
transversely disposed muntin bars dividing the
window into a plurality of spaces, some of which
are glazed leaving at least one space vacant vas a
`Ventilating area, a downwardly projecting lip
portion arranged in spaced relation from the
outer surface of the muntin bar extending along
¿the topof the Ventilating area, a closure assem
the muntin bars'bounding the Ventilating area,
bly for the Ventilating area, said closure assembly
detention means extending across the Ventilating
area for preventing the escape of human bodies
frame portion having an upwardly projecting
therethrough, and capping members overlying
the flanges of the portions of some of the muntin
bars extending across the ilxed glazed area, said
capping members including lips overlying the
flanges of the frame of the closure so as to- hold
the same in position.
8. In a detention window assembly a. plurality
of transversely arranged T-shaped> muntin bars
Adividingthe window into a plurality of spaces,
some of which are glazed leaving a group of
60 spaces vacant for Ventilating areav across which
,the muntin vbars extend,` detention means- ex'
tending across the Ventilating. area for prevent
ing the escape of human bodies therethrough, a
closure for the Ventilating area including a frame
‘including a movable closure mounted in a fixed
'flange extending under said lip portion, and .
'means cooperating with the lip portion to hold
'the frame' in fixed relation with respect to the
Ventilating. area.
- "13. In a window assembly having a plurality of
transversely' disposed muntin bars dividing the .
window into a plurality of spaces some of which
'are glazed leaving at least one space vacant as a
Ventilating area, a downwardly projecting lip
portion arranged in spaced relation from the
outerv surface of the muntin bar extending along 60
the top of the Ventilating area, a closure assem
'bly forthe Ventilating area, said closure- assembly
having outwardly projecting flanges overlapping
including a movable closure for closing the ven
tilating.v area, said lmovable closure being mounted
ini-alfixed frame' portion having an upwardly pro 65
some oi the flanges of the muntin bars bounding
jeeting flange extending under said lip portion-to
the Ventilating area, means_associated with the hold saidv frame along the top, and means for
portion of someV ofthe muntin bars extending holding the. bottom of the frame in fixed relation
across the fixed glazed spaces for preventing the iwith respect to the bottom of the Ventilating area.
I4. In- a window assembly having a plurality of
severance thereof, saidzmeans including' a- lip
transversely disposed muntin bars dividing the
overlapping the flanges of the _frame of the clo
sure to hold the same in position, and-:a tool re
.window into> a plurality of spaces some of which
‘sistant member ñxedly attached to one of the
.are glazed leaving at least one space vacant` as a
flanges of the muntin bar bounding the ven
Ventilating area, a downwardly projecting lip
portion» arranged in spaced relation from thel
tilatingarea, saidmember having a portion- there
5
2,137,439
outer surface of the muntin bar bounding the top
of the Ventilating area, an upwardly projecting
lip portion arranged in spaced relation from and
supported upon the muntin bar extending along
the bottom of the Ventilating area, and a closure
assembly for the Ventilating area, said closure
assembly including a movable closure mounted in
a fixed frame portion having an upwardly pro
jecting flange underlying the downwardly pro
10 jecting lip portion across the top of the Ventilat
ing area, and a downwardly projecting flange in
terlocking the lip portion extending along the
bottom of the Ventilating area, so as to hold the
frame portion in fixed spaced relation with re
15 spect to the muntin bars.
15.'In a window assembly having a plurality of
transversely disposed muntin bars dividing the
dividing the window into a plurality of spaces,
means .for closing the spaces, said means including
glazing, some of said muntin bars having ñanges
projecting in planes parallel to the glazing, and
a capping member of tool resistant material for
at least one of the muntin bars, said capping
member having a flange projecting in parallel re
lation b-ut offset from the flange of the muntin 10
bar, said ilanges cooperating to form a channel
into which the means for closing the adjacent
space projects.
20. A metallic window assembly having a
metallic frame, including a plurality of trans 15
Versely disposed metallic muntin bars dividing the
window into a plurality of spaces some of which
are glazed leaving at least one space vacant as a
window into a plurality of spaces some of which
are glazed leaving a group of spaces unglazed as
a Ventilating area, the portion of the frame ex
Ventilating area, means cooperating with the
muntin bars extending along the top of the ven
tending across the top of the Ventilating area
having a downwardly projecting channel, the por
tilating area to form a channel, a member having
tion of the frame extending across the bottom
of the Ventilating area including a sill portion
having an upwardly projecting flange, and a
an upwardly projecting lip portion extending
along the bottom of the Ventilating area, said
25 member overlapping a portion of the muntin bar
extending across the bottom of the Ventilating
area, and a closure assembly for the Ventilating
area, said closure assembly including a movable
closure mounted ina fixed frame having an up
30 wardly projecting ilange seated in the channel
along the top of the Ventilating area, and a down
35
19. A metallic window assembly including a
plurality of transversely disposed muntin bars
closure assembly for the Ventilating area includ
ing a closure frame having a flange projecting
up into the channel extending across the top of
the Ventilating area, said closure frame also hav
ing a ilange along the bottom thereof overlapping
the upwardly projecting ilange along the sill por 30
tion.
wardly projecting flange overlying the lip portion
21. A detention window assembly including ak
extending along the ñxed frame in fixed spaced
relation with respect to the muntin bars.
plurality of transversely arranged muntin bars
dividing the window into a plurality of spaces,
16. In a window assembly having a plurality of
transversely disposed muntin bars dividing the
Window into a plurality of spaces some of which
are glazed leaving at least one space vacant as a
Ventilating area, overlapping lip portions located
40 on at least two» oppositely disposed sides of the
Ventilating area arranged in spaced relation with
the muntin bars extending along said sides, and a
closure assembly having means interlocking saidr
lip portions so as to support the closure assembly
45 upon the muntin bars of the window assembly.
17. A metallic window assembly including a
some of said bars constituting flanged needle bars 35
passing through eyes in the remaining bars, duo‘
functional key and detention bars passing through
said eyes in parallel relation to the needle bars
and arranged to interlock the bars in ñxed rela
tion, and additional bars overlapping at least 40
portions of the eye bars to prevent severance
thereof.
22. In a window assembly a composite muntin
bar structure including a pair of members one
of which is a glass supporting member, one of 45
said members being of tool resistant material,
plurality of transversely disposed muntin bars,
the other of too‘lable material, one of _ said mem
one set of muntin bars having flanges projecting
bers constituting portions directed in two direc
in parallel relation with respect to the glazing, a
50 capping member having a lip portion arranged in
parallel relation with respect to the flanges of
one of the muntin bars and supported in spaced
relation therefrom, said lip portion cooperating
with the flange to form a channel, and a’closure
55 for the space subtended by the channel, said
closure having an edge projecting into the chan
nel and held in position by the capping member.
18. A metallic window assembly having a plu
rality of transversely disposed toolable muntin
60 bars dividing the window into a plurality of spaces
some of which are glazed leaving a group of spaces
vacent for a Ventilating area, the muntin bars ex
tending along the boundary of the Ventilating area
having flanges projecting into the Ventilating area
65 in parallel relation with respect to the glazing, a
capping member of tool resisting material over
lying at least one of the muntin bars and con
tiguous thereto, said capping member having a
flange arranged in parallel relation with respect
70 tol one of the inwardly projecting ñanges bound
ing the Ventilating area, said flanges cooperating
to form a channel, and a closure for the ventilat
ing area having a ilange projecting into the chan
nel so as to be held in position thereby.
tions, one portion in parallel to the glazing, the
remainder of said member in a direction sub 50
stantially normal to' the glazing, said remainder
being thicker than the portion extending parallel
to the glazing, said parts being united by a weld
extending through a fusing recess in one of said
members and engaging the other member to hold 55
the members in rigid relation to each other,
23. In a window assembly, three transversely
disposed bars some of which function as muntin
bars, at least one of said bars having a fusing
hole for receiving fusing material uniting the 60
three bars into a unitary structure.
24. A window assembly having glazing held in
position by putty, said assembly including at
least three transversely disposed bars, at least two
of said bars constituting intersecting bars, an 65
' aperture extending through the juncture of the
two bars and terminating in a surface of the
third bar, fusing material in said juncture unit
ing the three bars by a unitary weld, the surface
of the weld being concealed by the putty holding 70
the glazing in position.
WILLIAM D. BAYLEY.
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