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Патент USA US3078533

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Feb. 26, 1963
R, L. MARTlN
WEATHER-smlxrrôR REMOVABLE WINDOW SASI-I/4
Filed Oct. 28, 1959
3,078,523
GUIDE AND COUNTERBALANCE ASSEMBLY
4 Sheets-Sheet l
Feb. 26, 1963
R. l.. MARTIN
3,078,523
WEATHER-SEAL GUIDE AND COUNTERBALANCE ASSEMBLY
FOR REMOVABLE WINDOW SASH
Filed Oct. 28, 1959
4 Sheets-Sheet 2
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Feb. 26, 1963
R. L. MARTIN
3,078,523
WEATHER-SEAL GUIDE AND COUNTERBALANCE ASSEMBLY
FOR REMOVABLE WINDOW SASH
Filed Oct. 28, 1959
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ATTÚRNEY
Feb. 26, 1963WEATHER-SEAL
Filed Oct. 28, 1959
57
R, L.. MARTIN
3,078,523
GUIDE AND COUNTERBALANCE- ASSEMBLY
FOR REMOVABLE WINDOW lSASI-I
4 Sheets-Sheet 4
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United States Patent Oliiice
l.
3,078,523
WEATHER-SEAL GUIDE AND COUNTERBALANCE
ASSEMBLY FÜR REMÜVABLE WINDOW SASH
Robert L. Martin, Kansas City, Mo., assignor to The
Weatherproof Products Corporation, Holmes Parli,
Mo., a corporation of Missouri
Filed Get. 23, i959, Ser. No. 849,344
3,078,523
Patented Feb. 26, 1963
width; to provide opposite sides of the spring housing por
tions of the guides with longitudinal corrugations that
enhance the rigidity of the folds that connect the sides
of the spring housings with the sashway portions of the
guides and which cooperate lwith the longitudinal folds
producing substantial rigidity in the longitudinal direc
tion of the guide while maintaining the transverse re
siliency thereof for establishing sealing contact between
10 Claims. (Cl. 20-52)
the jamb and edge faces of the sash; to provide a guide
This invention relates to weather-seal guide and counter 10 construction that permits of shallow sashway portions for
facilitating removal of the sash; to provide connections
balance assemblies for double hung window sash, particu
between the balance springs an-d sashes which include
larly for sash of the removable type.
gripping devices or pawls pivotally connected in carriers
ln modern windows, the sash are slidably mounted in
that are attached to the balance springs and slide within
combination weather-seal guides that are coextensive with
the spring housing portions responsive to engagement of
15
the jambs at opposite sides of the window frame. One
the gripping pawls by the connectors on the sash; to pro
of the guides is usually attached to its jamb, While the
vide the corrugations in the sides of the spring housing
other guide is movably contained in a recess at the op
portions to serve as guide grooves for guide ribs on the
posite side of the frame and backed with respect to its
respective sides of the pawl carriers, whereby the carriers
jamb by a form of spring to establish a resilient weather
seal with the edge faces of the window sashes and at the 20 are rigidly supported in opposition to the reaction forces
resulting from setting of the gripping pawls; to utilize
same time provide for freely guided movement of the
the guide grooves for securing covers for closing the
sash. The sash are usually counterbalanced by coil
open sides of the spring housing portions that contain
springs attached at their upper ends to the upper ends of
the spring balances for the inner sash and also for sup
the guides and at the lower ends to the sash.
This t3 pe of mounting is adapted for removal and re 25 porting stops at the top of the frame for limiting upward
movement of the sash and prevent striking of the sash
placement of the sash for cleaning, painting, and other
lock against the upper jamb; to provide the gripping
purposes, because the yieldably backed guide permits
pawls with springs that are separate and Operate inde
suñìcient lateral movement of the sash to free the edge
pendently of the balance springs to set the pawls; and to
faces of the sash from the sash‘ways to disconnect the
sash from the balance springs. However, when the sash 30 provide a connector part on the sash for automatically
connecting the sash directly with the gripping pawls so
are disconnected, the springs fly back and jerk the sash
that the sash may be inserted in any position in the
connections out of position, so that they cannot be readily
frame, either above or below the level of the gripping
reconnected with the sash when the sash are to be re
pa‘wls, and be automatically engaged therewith.
placed. If the springs are controlled to prevent _snap
A further object of the invention is to provide backing
back, the controls are usually gripping devices that are 35
spring members that further support the guides in the
supposed to set and grip the guides automatically under
longitudinal direction thereof but which allow for trans
action of the balance springs when the connections on
verse
flexibility necessary to maintain sealing contact with
the sash disengage from the balance springs, but the
the edge faces of the window sash.
balance springs are so active that they usually ñy back
Another object of the invention is to provide weather
before the gripping devices can set themselves. In some 40
seal and spring balance units adapted for supporting a
instances, separate springs are employed to set the grip
sash at both sides thereof, whereby the sash is freely sus
ping devices independently of the balance springs, and the
pended between the guides in a manner to reduce later
locking devices are released by a trip engageable by a
part of the sash connection when the sash are replaced. 45 pressure of the sash against the guides.
In accomplishing these and other objects of the inven
Again, the springs are subject to release by the trip be
tion as hereinafter pointed out, l have provided improved
fore a satisfactory connection can be established between
structure, the preferred form of which is illustrated in
the balance springs and sash.
the accompanying drawings, wherein:
v
It is obvious that since the weather-seal guides should
FIG. l is an elevational view, partly in section, of one
be constructed of substantially light, springy material for 50
side of a window equipped with a weather-seal and spring
maintaining sealing contact between the frame and the
balance unit embodying the features of the present inven
sash, it has been difficult to establish a satisfactory grip
tion, the height of the figure being shortened by omitting
ping contact of the gripping device with the guide because
sections therefrom, and the inner sash being shown in
of yieldability of the material from which the guides are
raised position, but with the movable guide in sealing
constructed and back up of the carrier for the gripping
-contact therewith.
device. Also, the guides are easily damaged by the grip
FlG. 2 is a similar View, but showing the parts of the
Consequently, the spring housings become
lping action.
scariñed and deformed to an extent where the sash con
wether-seal and spring balance assembly in compressed
nections do not slide freely within the guides.
condition, as when the sash is moved laterally to permit
satisfactory because of complication in construction of
the guides, high cost of manufacture, diliîcult installation,
FIG. 3 is a_ horizontal section through the window, the
section through the outer sash being taken at one eleva
tion and the section through the inner sash at a lower
elevation, and illustrating the sashes connected with the
Various attempts have been made to overcome these 60 removal thereof from the sashway at the opposite side
of the window.
difliculties, but in most instances the results have not been
and high installation cost.
The principal objects of the present invention are to 65
balance springs and the guides in sealing contact with
overcome the above mentioned difficulties by providing
the edge faces of the sash.
a weather-seal guide and counterbalance assembly of
FIG. 4 is a section similar to FIG. 3, but showing the
simple, inexpensive construction, capable of assembly at
inner sash being removed.
the factory and installed on the job as a unit.
FIG. 5 is a fragmentary perspective view of the weather
Other objects of the invention are to provide a single 70
piece guide incorporating balance spring housing portions
and sashway portions integrally connected by folds pro
vided in a single elongated sheet metal strip of proper
seal guide, backing spring, guide retaining brackets, sash
stop, and spring housing cover, shown in spaced apart
relation to better illustrate the construction thereof.
’3,078,523
FIG. 6 is a perspective View of the carrier for pivotally
supporting the gripping pawl, the carrier being viewed
In order to promote contact of the flanges with the blind
and finish stops, the free marginal edges thereof are
from the back side thereof.
cured inwardly as indicated at 2S.
ì
FIG. 7 is a similar perspective view of the pawl car
The spring housing portions 11 and 12 have spaced
rier as viewed from the opposite or front side thereof.
Ul apart side Walls 26 and 27 that connect with inner edges
FIG. 8 is an enlarged fragmentary section through a
ofthe webs i9 and 21d by folds `.72.3, and formed in the
portion of one of the spring housing portions and the
side walls immediately adjacent the folds 2S are corru
pawl carrier, showing the gripping pawl in gripping en
getions 29 and 3i) providing inwardly facing grooves 3l
gage rent with the rear wall of the spring housing por
and 32. r[he outwardly extending portions of the ribs 30
tion of the guide.
10 constitute means for retaining the resilient backing mem
FlG. 9 is a similar fragmentary section, but showing
ber d, as later to be described.
l
a portion of the sash and the connector thereon in con
The spring housing portions of the guide also include
nected engagement with the gripping pawl and whereby
the pawl is released and the sash is carried by the spring
rear walls 34 that are connected with the side walls 26
balance.
FlG. l0 is an enlarged transverse section showing the
fronts 3'7 across the entire width thereof. lt is obvious
that a guide member folded as described has substantial
and 27' by folds 35. Thus the spring housings have open
gripping pawl in plan View and supported against reac
tion thrust of the pawl.
rigidity in the longitudinal direction thereof, and par
ticularly along the sides of the open fronts 37 by reason
FiG. ll is a section through an upper portion of one
of the folds 28 and the adjacent corrugations 29 and 36,
of the spring housing portions, particularly illustrating 20 and this rigidity maintains the shape and dimensions of
the open fronts of the spring housing portions. The
the cover for closing the open front thereof, the section
being taken on the line lî-ll of FIG. 13.
guide members 3 when thus formed closely engage the
FlG. l2 is a perspective view of the gripping pawl.
blind and iinish stops of the window frame and form
weathertignt seals therewith.
FiG. 13 is a vertical section through the window, look
The upper ends of the guide members are cut at right
ing in the direction of the movable guide, with the sash
angles with respect to the sides thereof, but the lower
in closed position and showing portions of the sashes
ends are cut on an angle corresponding to the slope of
and spring cover broken away to ybetter illustrate the loca
a window sill. The upper portions of the side walls 25
tion of the gripping pawl carriers and the connectors on
and 27 of the spring housing portions are provided with
the sash.
FÍG. 14 is a perspective view of a portion of the sash 30 a vertical series of apertures 38 for passing pins 39 for
anchoring upper ends of the spring balances 5. The
guide as viewed from the jamb side thereof.
upper and lower ends of the guide member of the fixed
FIG. l5 is a similar view of a portion of the guide
unit are provided in the rear walls of the spring housing
as viewed from the sash side thereof.
portions with openings 4G to pass fastening devices such
FIG. 16 is a fragmentary portion of the backing spring.
FIG. 17 is a perspective view of a sash stop and upper 35 as screws 41 (FIG. 3) by which the fixed unit 2 is at
tached to the side jamb of the window frame, as later to
end portion of a spring cover as viewed from the jarnb
be described.
sides thereof.
With the construction as described, the spring housings
FlG. 18 is a perspective view of one of the sash con
constitute portions of each guide member and eliminate
nectors that is to be attached to the edge face of the
40 the time and labor necessary in producing separate spring
sash.
housings and connecting them to the guide members.
Referring more in detail to the drawings:
Also, the spring housing portions are outside of the sash
The combination weather-seal and spring balance as
semblies for a window includes a movable unit 1 and
a fixed unit 2. The movable unit 1 includes a weather
Ways 9 and l0, so that it is not necessary to provide the
sash with the usual deep side grooves or to provide a
relatively large movement of the movable unit when
seal and guide member 3, a resilient backing or spring
member 4, balance springs 5, and upper and lower bracket 45 effecting clearance of the sash with respect to the spring
housings.
members 6 and 7 as the principal parts thereof. The
Another important feature is the relatively shallow
fixed unit 2 includes only a weather-seal and guide mem
depth of the sashways È and it?, so as to eliminate the
ber 3 andbalance springs 5 as the principal parts thereof.
relatively deep recessing of the side jamb. ln fact, re
The weather-seal and guide members 3 for the respective
50 cessing of the side jamb is not necessary, since ample
units are of identical construction, with the exception
space is provided within the depth of the ordinary blind
that they are rights and lefts, due to the inclination of
and finish stops while maintaining ample sealing contact
of the outer flanges 13 and 14 with the blind and finish
The weather-seal and guide member 3 is separately
illustrated in FIGS. 14 and l5 and is produced from a 55 stops, as best illustrated in FiGS. 3 and 4.
The counterbalance springs 5 comprise elongated coils
single strip of sheet material having the necessary width
having the endmost convolutions shaped to provide eyes
and length to provide a central parting stop portion 8,
42 at their upper ends for passing the pins 39 there
sashway portions 9 and 10 including spring housing por
through
and to provide hooks 43 at their lower ends for
tions 11 and 1‘2, and outer side flange portions 13 and
14. The parting stop portion 8 has a web 15 correspond 60 connecting sash carriers or slide members 44 that are re
ciprocated in the spring housing portions 11 and 12 re
ing with the width of an ordinary parting stop, and. rela
sponsive to raising and lowering of the sash under action
tively shallow side flanges 16 and 17 connected therewith
of the balancing Springs 5, later to be described.
by bends or folds 18. The side flanges 16 also con
The resilient backing member 4- of the movable unit is
stitute adjacent sides of the sashway portions 9 and 10.
also formed of a strip of sheet metal having spring-like
The sashway portions each include inner and outer 65 characteristics to retain the shape thereof (see FIG. 16).
webs 19 and 20 that are spaced apart by the spring hous
The backing member includes a normally flat web portion
ing portions 11 and 12, the inner webs 19 being connected
45 of a width to bridge the parting stop portion 8 of the
with the side flanges 16 by bends or folds 21, while
guide member and overlie the inner web portions 19 of
the outer webs 20 have flanges 22 connected therewith
the sashways and terminate in bends 46 providing in
by folds 23, the iianges 22 being of a depth correspond 70 wardly converging ñange portions 48 and 49, which in
ing to the depth of the inner side flanges 16. The side
turn terminate in laterally flaring wings Sil and 51, the
flanges 13 and 14 of the guide are connected with the
outer edges of which are curved as at 52 to provide sub
ñanges 22 by return bends 24, whereby the side flanges
stantially linear bearing contacts 53 with the face of the
extend along the lianges 22 for resiliently engaging the
side jarnb, as later to be described. The Wings 516 and 51
are connected with the inwardly `converging flanges by
blind- and finish stops of a window, as later described.
the sill of a window.
3,078,523
5
f_olds 54 and 55 on which the wings are adapted to liex,
as shown in FIG. 4. When the backing member 4 is ap
plied to the guide member 3, the bends 46 engage under
the adjacent corrugations 30 to retain the members in
assembly. The resilient backing members 4 are of a
length to extend substantially the full length of the guide
member, and, while being resilient, form a substantially
stable support for positioning and stabilizing the guide
6
84 of each connector 83 is a resilient tongue 87 terminat
ing in a slightly rounding foot 88 which seats upon the
projection 77 (see FIG. 9).
The brackets 6 and 7 are of angle shape to provide
flanges 89 that are adapted to be secured to the jamb
by fastening devices, such as nails 90, which are projected
through openings 91 in the flanges. The other flanges 92
_extend inwardly of the window frame, and the flange 92
of the bracket 7 carries upright ears 93 that engage the
member in sealing Contact with the edges of the sash and
to shift the sash into sealing contact with the ñxed unit 10 inner faces of the walls 34 of the spring housing portions
of the guides. The tongues 94 are stamped from the
at the opposite side of the frame.
The carriers or slide members '44 constitute an im
inwardly projecting flange of the bracket 6 and inclined
downwardly and outwardly for resiliently engaging the
portant part of the invention, and each carrier is of like
rear walls at the upper end of the guide.
construction. Each carrier ycomprises a body 56 which
Stops 9S are provided to limit upward movement of
may be formed of any suitable material, preferably a 15
the inner sash and are formed of sheet metal stampings,
synthetic plastic, such as nylon, and has substantially
as best shown in FIG. 17. The stops are of generally
iiat side faces 57 and 53 adapted to slide upon the side
channel shape and have side flanges 96 and 97 carrying
walls 26 and 27 of the spring housing portions of the
laterally directed lips 98 and 99 that engage within the
guide members, and substantially hat front and rear faces
grooves 31 and 32. The lower ends of the stops have an
S9 and 60. Projecting from the side faces 57 and 58 are
inwardly turned flange 100 against which the upper rim of
tongues 61 and 62 that slidably engage within the grooves
the sash is adapted to abut. When the inner sash is in
31 and 32 of the corrugations 29 and 30 to support the
closed position, the balance springs 5 therefor would be
rear faces 60 in substantially close relation with the rear
exposed through the open fronts of the spring housings,
Walls 34 of the spring housings, and the front faces 59
in protrusion from the open fronts 37 of the spring hous 25 however, these springs may be covered by strips 101 hav
ings and preferably slightly beyond the webs 19 and 20,
ing laterally extending lip portions 102 and 103, also
adapted to engage within the grooves 31 and 32, as shown
in FIGS. 3, 11 and 13.
A window frame best adapted for the present inven
end of the counterbalancing springs, whereby the carriers 30 tion includes side jambs 104 and 105 connected at their
upper ends by a header jamb 106 and at their lower ends
or slide members are connected with the counterbalanc
by a sill 107. Fixed to the outer edges of the jambs are
ing springs. The body of each carrier has a transverse
blind stops 108 which cooperate with ñnish stops 109 that
opening 65 that extends through the front and rear faces
are attached to the inner edges of the jambs, for providing
59 and 60 thereof to contain a gripping pawl or sash
supporting member 66 and an actuating spring 67 there 35 recesses 110 and 111 (FIGS. 3 and 4) in which the units
1 and 2 are respectively mounted to retain the upper and
for. The sides of the body of the carrier adjacent the
lower sash 112 and 113. The sash 112 and 113 may be of
opening 6e' have transverse slots 68 that extend inwardly
the usual type, but the edge faces thereof are plowed to
from the rear face 60 to terminate short of the front face
as best shown in FIGS. 1 to 4, inclusive, and 8 to 10, in
clusive. The upper end of the body has an ear 63 hav
ing an aperture 64 for passing the hook 43 on the lower
59 in upwardly extending portions 69 having lateral ter
provide relatively shallow grooves 114 for accommodat
pawl 66.
The gripping pawl or sash supporting member 66 is best
lower portions thereof.
The weather-seal and guide units for the respective
minals 70 at the upper ends thereof which are located 40 ing the projecting portions of the pawl carriers. The
connectors 33 are secured within the bottoms of the sash
in the body of the carrier above the opening 65. Extend
grooves by fastening devices, such as nails 115, that are
ing downwardly from the slots 63 are recesses 71 and 72
driven through the apertures 85 into the sash near the
forming seats for trunnions 74 and 75 on the gripping
illustrated in FIG. l2, and includes a substantially flat 45 sides of a window are assembled at the factory, so that
they can be quickly and easily installed on the job with
blade portion 76 terminating in an angularly extending
a minimum of skill and time. The gripping pawls 66
tail portion 77. Projecting from opposite sides of the
are inserted in the carriers therefor for passing the trun
blade portion 76 are the trunnions 74 and 75, each having
nions 74 and 75 through the open ends of the slots 68
(see FIGS. 8 to 10, inclusive). The outer end of the 50 until they drop into the recesses 71 and 72. The springs
67 may be inserted laterally through the horizontal and
blade portion 76 is substantially flat and forms with the
vertical portions of the slots, to seat the hooked ends S2
under side thereof a transverse linear tooth or gripping
in the terminals 70 when the ends S0 thereof bear upon
edge 7S, adapted to bite the inner surface of the metal
the blade portions 76 of the gripping pawls. Upon
constituting the rear walls of the spring housing portions
of the guide members, as best shown in FIGS. 8 and l0. 55 release of the springs, they revert to their normal shape
where the curved portions thereof move out of registry
The blade portions thus are adapted to project from the
with the slots and into engagement with the side walls
opening 65 and the tail portions 77 are of a length to
of the carriers. Also, the pressure of the springs on the
extend through the opposite end of the opening and
gripping pawls prevents displacement of the parts. The
project from the front face 59 of the carrier in all posi
tions of the gripping pawl, as best shown in FIGS. 8 60 carriers are then engaged with the hooked ends 43 of the
coil springs 5 and the hooks may be closed if desired.
and 9.
The carriers are then applied to the guide members by slid
rlîhe gripping pawls are normally urged into gripping
ing them into the open upper ends of the spring housings,
engagement with the rear walls of the spring housings
with the guide ribs 61 and 62 thereon passing within the
by action of the springs 67. The springs 67 are pref
erably formed of dat leaf material and curved transversely, 65 grooves 31 and 32. The upper ends of the springs are
then anchhored to the guides by passing the pins 39
as indicated at 79, to provide ends 80 adapted to bear
through a pair of the registering openings 38, the open
upon the blade portions 76 of the gripping pawls 66 and
a diameter to closely ñt within the recesses 71 and 72
shank portions 81 that extend upwardly in the vertical
portions 69 of the slots and terminate in hooks S2 which
engage within the terminals 70.
The projecting ends 77 of the gripping pawls 66 sup
port the window sash thereon by means of connectors 83
(see FlG. 18), which include plate portions 84 having
ings being selected in accordance with the weight of the
sash. The covers 101 are then moved into position to
70 cover the open fronts of the sides of the guides which
mount the inner sash. This is readily accomplished by
passing the edges 102 and 103 into registry with the
grooves 31 and 32. The resiliency of the metal retains
the covers in position so that they do not slide out of their
apertures 85 for passing fastening devices such as nails
86. Extending from the lower end of the plate portion 75 proper relation with the guide member. After placement
3,078,528
ti»
of the covers, the sash stops 9S are similarly applied at
the upper ends of the guides. The resilient backing mem
bers are then applied by placing the web portions 45
thereof in position to be forced between the spring hous
ings 11 and ll2 until they seat under the corrugations 3i?,
whereupon the backing members are attached to the guide
members. The guide member at the opposite side of the
frame, of course, is` not equipped with a resilient back
ing member, but the spring cover, pawl carrier' and sash
stop are assembled in the guide member in the same
manner. The brackets 6 and 7, together with the sash
carriers 83, and the necessary fastening devices, such as
the screws 41 and nails 85 and 9d, may be packaged
with the assembled units.
When installing the assembled units, the fixed unit 2
seat upon the tail portions of the pawls, as shown in FIF.
l, to rock the gripping pawls in position to release them
from gripping engagement with the rear walls of the
spring housings. Then, as the sash is lifted into position
to close Athe upper portion of the window, the springs 5
become eiiective in assisting in movement of the sash.
The inner sash is then applied to the inner ways in a
similar manner, as illustrated in FIG. 4, and the window
is moved up and down to make connection of the tongues
87 with the gripping pawls which support the inner sash.
After the connection is completed, the sash may be
raised and lowered under action of the balancing springs.
When it is desirable to remove the sash, the inner
sash is shifted laterally in the direction of the movable
unit l to compress the backing spring, as shown in FlG.
is passed into the recess at the righthand side of the
frame and secured at the upper and lower ends by the
screws 4l. Upon tightening of the screws, the Vrear walls
the ñxed unit, whereupon the sash may be swung out
shown in FIGS. 3 and 4. The brackets 6 and 7 are in
serted within the upper and lower corners at the opposite
pawls into contact with the inner face of the rear walls of
the spring housings, so that the edges 78 thereof bite
4, until the opposite edge of the sash clears the back of
wardly and removed from the frame. Immediately upon
of the spring housings thereof seat against the face of
sliding of the tongues 8S from ori the outer ends of the
the jamb, and the side flanges 13 and 14 form seals with 20 tail portion 77 of the gripping pawls, the springs 67 are
the corresponding blind stop 108 and finish stop 109, as
instantly effective to move the blade portions of the
sides of the frame, with the flanges 89 seating squarely
slightly into the metal for holding the springs and prevent
against the inner face of the jamb and the ends iitting be 25 ing them from flying upwardly within their housings.
tween the stops M8 and R09. When the brackets are in
ri`he gripping pawls or sash supporting members thus
position, they are secured by driving the nails 9d through
anchor the movable ends of the balance springs, there
-the openings of the flanges S9 and into the jamb.
fore, the gripping pawls or sash supports are left in sub
The movable unit 1 is then easily inserted by pressing
stantially the same position which they assumed when
the guide member over the ears 93, so that the ears pass 30 the sash was removed, so that the sash may be readily
into the lower open ends of the spring housings. The
entire unit is then moved inwardly toward the jamb with
suiiicient pressure being exerted on the upper ends so
that the upper rear walls of the spring housings pass under
the resilient tongues 92 of the upper bracket 6. When
replaced and easily engaged to' effect release of the
balance springs for balancing the sash.
_
What I claim and desire to secure by Letters Patent is:
l. A weather-seal guide and spring balance for re
movably mounting sash in a window frame, said weather
the wings Si) and 51 of the resilient backing member
make contact with the jambs, the tongues S2 cooperate
seal guide and spring balance including a guide member
with the tongues 93 in retaining the assembly in position.
During placement of the asembled unit, the curved
ends 25 of the side ñanges 13 and 14 pass readily into
ing an open front spring housing projecting from the
the recess at that side of the window and form seals with
the stops ließ and 1&9. rl`he tangential contact points 53
of the wings Sil and 51 also form weather-seals with the
face of the jamb, so as to close air passageways between
the jainb and the assembled unit.
The pawl carriers are preferably moved downwardly
within the spring housings to load the springs and better
position the ends or lever portions of the gripping pawls,
so that they may be engaged with the sash connectors S3
which are now applied to the sash. lf the side edges
having a sashway on an inner face side thereof and hav
outer face side and in connection with the sashway
through said open front, a balance spring within said
spring housing of the guide member, means for connect
ing one end of the balance spring with one end of the
spring housing, a slide carried ou the other end of the
balance spring, means on the slide for gripping contact
with a part of the spring housing opposite the open front
thereof and having means for removably carrying a sash
thereon to hold the gripping means out of gripping con
tact, and spring means separate from the balance spring
to set the gripping means in said gripping contact upon
removal of the sash, said slide and said spring housing
of the sash have not been previously grooved, they are 50 having tongue and groove connections on opposite sides
of said open front for backing the gripping means during
said gripping contact.
2. A weather-seal guide and spring balance for remov
ably mounting sash in a window frame, said weather-seal
and with the tongues S7 thereof in desired location with
guide and spring balance including a guide member hav
respect to the bottom edges of the sash. The nails 8S are
ing a sashway on an inner face side thereof and having
then driven through the openings 84 in the plate por
an open front spring housing projecting from the outer
tions of the connectors, and the sash are ready to be
face side and in connection with the sashway through said
placed within the window.
open front, a balance spring within said spring housing
The upper sash may be ñrst applied by pressing the
lefthand edge thereof within the outer way of the mov 60 of the guide member, means for connecting one end of
the balance spring with one end of the spring housing, a
able guide, with the tongue 87 being located either above
slide carried on the other end of the balance spring,
or below the tail portion or actuating arm 77 of the
means on the slide for gripping contact with a part of
gripping pawls at that side of the window, and pressure is
provided with shallow grooves, as shown. The con
nectors are then placed in the grooves with the plate por
tions thereof in contact with the bottom of the grooves
exerted laterally on the sash to compress the resilient
backing element until the opposite side edge of the sash
can pass into the corresponding way of the fixed unit.
The pressure on the sash is then released so that the
the spring housing opposite the open front thereof and
having means for removably carrying a sash thereon to
hold the gripping means out of gripping contact, spring
means separate from the balance spring to set the grip
ping means in said gripping Contact upon removal of the
sash, said slide and said spring housing having tongue
backing spring becomes effective in shifting the sash into
sealing contact with the sashway of the ñxed guide, and 70 and groove connections on opposite sides of said open
the movable guide into sealing contact with that side of
front for backing the gripping means during said gripping
the sash. The sash may then be raised and lowered in
the sashways so that the resilient tongue 37 slides olf
one of the other ends of the carriers and into the openings
contact, and a spring cover for covering parts of the bal
ance spring which are not covered by the sash and hav
ing’ side edges engaging in said grooves for retaining the
65 thereof, whereupon the rounded ends of the tongues 75 spring cover.
ma
agrar/8,523k
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3. A weather-seal guide and spring balance for remov
ably mounting sash in a window frame, said weather-seal
with one of the side jarnbs of the frame, anda cover for
the open front of one of the spring housings and having
side portions engaged in said grooves.
6. In a weather-seal guide and spring balance assembly
ing a sas'nway on an inner face side thereof and having
for
removably mounting sash in a window frame having
an open front spring housing projecting from the outer Ul
side jambs, a sheet metal guide member having a central
face side and in connection with the sas'nway. through
parting stop portion and inner and outer resilient ñange
said open front, a balance spring within said spring hous
portions adapted for sealing Contact with said jambs and
ing of the guide member, means for connecting one end
having projecting flange portions cooperating with the
of the balance spring with one end of the spring housing,
guide and spring balance including a guide member hav
a slide carried on the other end of the balance spring,
means on the slide for gripping contact with a part of
parting stop portion to provide sides of sashways, said
guide member also having spaced apart web portions on
respective sides of the parting stop portion and respec
tively joining with the projecting flange portions and with
the parting stop portion on longitudinal folds to provide
bottoms of the sashways, said spaced apart webs being
interconnected by open front spring housing portions
the spring housing opposite the open front thereof and
having means for removably carrying a sash thereoirto
hold the gripping means out of gripping Contact, spring
means separate from the balance spring to set the gripping 15
means in said gripping contact upon removal of the sash,
having rear and side walls connected by longitudinal foldsy
said slide and said spring housing having tongue and
and said side walls being connected with the spaced apart
groove connections on opposite sides of said open front
web portions by longitudinal folds, said side walls having
for backing the gripping means during said gripping con
longitudinal corrugations coextensive with the last named
tact, a spring cover for covering parts of the balance
folds and providing facing grooves within opposite sides
spring which are not covered by the sash and having side
of the open front spring housing portions, a resilient back
edges engaging in said grooves for retaining the spring
ing
member for the guide member and having a normally
cover, and a sash stop in the sashway having side edges
flat central portion bridging the parting stop portion beengaging in said grooves above the spring cover.
4. ln a weather-seal guide and spring balance assembly 25 tween the spring housing portions and having inwardly
converging flange portions providing folds adapted to en
for removably mounting sash in a window frame having
gage under portions of the corrugations to fix said backing
side jarnbs, a sheet metal guide member having a central
member to the guide member and having Wings diverging
parting stop portion and inner and outer resilient flange
from the converging flange portions for sealing contact
portions adapted for sealing contact with said jambs and
having projecting flange portions cooperating with the
Inv
30 with one of the side jambs of the frame, a cover for the
open front of one of the spring housings and having side
parting stop portion to provide sides of sas‘nways, said
portions engaged in said grooves, and a sash stop above
guide member also having spaced apart web portions on
the cover and having side portions also engaged in said
respective sides of the parting stop portion and respec
grooves.
tively joining With the projecting flange portions and with
7. A weather-seal guide and spring balance for mount
the parting stop portion on longitudinal folds to provide 35
ing sash in a window frame having side jambs and inner
bottoms of the sashways, said spaced apart webs being
and outer stops forming recesses in facing sides of the
interconnected by open front spring housing portions
janibs, said weather-seal guide and spring balance includ
having rear and side walls connected by longitudinal
ing a sheet metal guide member having a central parting
folds and said side walls being connected with the spaced
apart web portions by longitudinal folds, said side walls 40 stop portion and inner and outer resilient flange portions
adapted for sealing contact with said stops and having
having longitudinal corrugations coextensive with the
projecting portions cooperating with the parting stop por
last named folds, and a resilient backing member for lthe
tion to provide sides of sashways, said guide member also
guide member and having a normally flat central portion
having spaced apart web portions respectively joining with
bridging the parting stop portion between the spring hous
the projecting portions and with the parting stop portions
ing portions and having inwardly converging flange por
tions providing folds adapted to engage under the corru 45 on longitudinal folds to provide bottoms of the sashways,
said spaced apart webs being interconnected by spring
gations to ñX said backing member to the guide member,
housing portions having rear and side wall portions with
and wings diverging from the converging flange portions
the side wall portions connected with the web portions by
for sealing contact with one of the side jambs of the
longitudinal folds for providing open front passageways
frame.
in connection with the sashways, said side walls having
50
5. In a weather~seal guide and spring balance assembly
longitudinal coi'rugations coextensive with the last named
for removably mounting sash in a window fran-ie having
folds and providing inwardly facing grooves along sides
side jambs, a sheet metal guide member having a central
of the passageways and external ribs, balance springs with
parting stop portion and inner and outer resilient flange
in said spring housing portions of the guide member,
portions adapted for sealing contact with said jarnbs and
having projecting ñange portions cooperating with the 55 means for connecting upper ends of the balance springs
within upper ends of the spring housing portions, gripping
parting stop portion to provide sides of sashways, said
means adapted to grip the rear walls of the spring housing
guide member also having spaced apart web portions on
portions
and having lever means for supporting the sash
respective sides of the parting stop portion and respec
thereon, carriers for the gripping means and having con
tively joining with the projecting flange portions and with
the parting stop portion on longitudinal folds to provide 60 nection with the lower ends of the springs for sliding
movement in said housing portions, means for supporting
the gripping means in the spring carriers in gripping con
interconnected by open front spring housing portions hav
tact with said rear walls of the spring housing portions
ing rear and side walls connected by longitudinal folds
and the lever means being presented in said open front
and said side walls being connected with the spaced .apart
web portions by longitudinal folds, said side walls having 65 passageways for Contact therewith by a part on the sash
to connect the sash with the balance springs and hold the
longitudinal corrugations coextensive with the last named
gripping means out of gripping contact when the sash
folds and providing facing grooves within opposite sides
are carried on said lever arms, springs bearing on the
of the open front spring housing portions, a resilient
gripping means and tending to urge said gripping contact
backing member for the guide member and having a nor
mally flat central portion bridging the parting stop por 70 with the rear walls of the spring housings for holding the
balance springs in stretched condition upon removal of
tion between the spring housing portions and having in
the sash from the lever arms, and guide ribs on the car
wardly converging flange portions providing folds adapted
riers having sliding engagement in said grooves to retain
to engage under portions of the corrugations to nx said
the carriers under thrust of the gripping means.
backing member to the guide member, wings diverging
8. A weather-seal guide and spring balance for remov
from the converging flange portions for sealing contact
bottoms of the sashways, said spaced apart webs being
envases
i. i
ably mounting a sash in a Window frame, said Weather
seal guide and spring balance including a guide member
having a sashway on an inner face side thereof and havin-g
guide member and
sides ot' the slide member having
tongues sli-dably engaged in said grooves for backing the
gripping means during said gripping Contact with the rear
an open front spring housing projecting from the other
wall. of the spring housing.
face side and in connection with the sashway through
lf). A weather-seal guide and spring balance for re
said open front, a balance spring Within the spring hous
movably mounting sash in a window frame, said weather
ing of the guide member, means for connecting one end
seal guide and spring balance including a sheet metal
of the balance spring with one end of the spring housing,
guide member having a central ptt-ting stop portion and
the other end of the balance spring being normally mov
inner and outer resilient flange portions adapted for seal
able longitudinally within said spring housing, a sash lO ing Contact with said Window trarne at the sides of the
supporting member in the spring housing and movable
Window frame and having projecting flange portions co
with the movable end of said balance spring, a slide mem
operating With the parting stop portion to provide sides
ber movable in the spring housing with the movable end
of sashways, said guide member also having spaced apart
of the balance spring and mounting the sash supporting
web portions on respective sides of the parting stop por
member for shifting movement therein responsive to
tion and respectively joining with the projecting flange
engagement and disengagement of the sash, and gripping
portions and With the parting stop portion on longitudi
means movable in said slide into and out of gripping con
nal folds »to provide bottoms of the sashvvays, said spaced
tact with a part of the spring housing opposite the open
apart Webs being interconnected by open front spring
front thereof upon shifting movement of the sash support
housing portions having rear and side Walls connected by
ing member relatively to said slide member to hold said
longitudinal folds and said side Walls being connected
movable end of the spring in iixed position in the spring
with the spaced apart web portions by longitudinal right
housing when the supporting member is free of the sash
angular folds to provide the open front across the entire
and to release said movable end of the spring for move
width of the spring housing, said side walls having longi
ment in the spring housing when the sash supporting
tudinal corrugations immediately joining and coextensive
member is engaged by the sash, said spring housing having
with the last named folds for providing inwardly facing
facing grooves on opposite sides of said open front and
grooves within said housing portions extending along
said slide member having tongues slidably engaged in said
sides of the open fronts of the spring housing portions,
grooves for backing the gripping means during said grip
balance springs within said spring housing portions of
ping contact with said part of the spring housing.
the guide member, means for connecting upper ends of
9. A Weather-seal guide and spring balance for remov
the balance springs within upper ends of the spring hous
ably mounting a sash
a Window frame, said weather
ings, carriers connected to lower ends of the balance
seal guide and spring balance including a guide member
springs and having longitudinal sliding movement in said
having a sashway on an inner face side thereof and a
spring housing having side Walls projecting from the
other face side and provided by substantially right-angu
lar folds to provide an open front across the entire Width
of the spring housing and said side walls being connected
spring housing portions and having recessed portions pro
jecting through said open fronts beyond said web p0r
tions of the guide member, gripping means adapted to
grip the rear Walls of the spring housing portions and
having lever arms, means for supporting the gripping
by a rear wall portion conforminfy in width to said open
means pivotally in the said carriers with the lever arms
front, a balance spring within the spring housing of the
projecting from said recessed portions, said gripping
guide member, means for connecting one end of the bal
ance spring with one end of the spring housing, the other
rear Walls of the spring housing portions upon disengage
end of the balance spring being movable longitudinally
Within said spring housing, a sash supporting member, a
slide member movable in
spring housing with the
movable end of the spring and having opposite sides in
contact with the side walls ot the spring housing, means
for mounting the sash supporting member' for movement
in the slide member, and gripping means in said slide
member and movable into and out of gripping contact
with the rear ‘fvall of the spring housing upon movement
of the sash supporting member relativeiy to said slide
member to hold said movable end oi the spring in íixed
position in the spring housing when Weight of the sash is
removed from the sash supporting member and to release
said removable end of the spring r‘or movement in the
spring housing when the sash supporting member is under
load of the sash, said side Walls of the spring housing
having facing grooves extending longitudinally of the
means being rockable into and out of contact with said
ment and engagement of the sash with the lever arms,
and springs in said carriers having bearing engagement
vith the gripping means for urging said gripping means
into contact with the said rear walls independently of said
balance springs upon disengagement of the sash for hold
ing the balance springs in stretched condition, said car
riers having guide ribs slidable within said inwardly fac
ing grooves to bach the carriers under thrust of the grip
ping means upon the rear Walls of said housing portions.
References Cited in the tile of this patent
UNlTED ST TES PATENTS
2,791,795
Haas ________________ __ May 14, 1957
2,877,514
Mears ______________ __ Mar. i7, 1959
2,903,736
2,952,048
Osten __
__ Sept. l5, 1959
Graham ____________ __ Sept. 13, 196i)
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