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Патент USA US2124135

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July 19, 1938.
Filed April 50, 1956
2 Sheets-Sheet 1
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July 19, 1938.-
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Filed April 50, 1936
2 Sheets-Sheet 2
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Patented July 19, 1938
Eugene T. Brown, Seattle, Wash.
Application April 30, 1936, Serial No. 77,243
3 Claims.
My present invention relates to the general
(01. 126—202)
vice .as installed in a conventional ?replace
art of heating devices and more particularly to
a ?replace screen and draft control.
Figure 2 is a fragmentary, cross-sectional View
through my screen and showing the meansfor
adjusting and securing the device.
Figure 3 is a front elevation of a ?replace, hav
ing my device installed with certain parts shown
in section to better illustrate the construction
While improvements have been‘ made in all
5 types of heating equipment there has not, to my
knowledge, been a worthwhile change in devices
for controlling ?replace ?res. Many types of
dampers have been provided. However, a damp
er fails to serve its intended purpose when ap
10 plied to a ?replace because of the fact that once
gases are formed, as a result of the heat applied
to the fuel, they must be allowed to go up the
chimney but, if the chimney is restricted by a
damper, they will be discharged into the room.
15 This is objectionable. Further, there is a real
need for means that will permit checking a ?re
place ?re and that will prevent, with certainty,
sparks being thrown out of a ?replace and caus
ing damage. Then, too, in many localities where
Figure 4 is a fragmentary View in perspective 10
to illustrate certain parts of my device.
Figure 5 is a perspective view showing, in ex
ploded relationship, a number of the essential
parts that distinguishes my present device.
Referring to the drawings, throughout which 15
like reference characters indicate like parts,'6
generally designates my curtain.
This may fol
low approved practice for curtains designed to
resist heat. Throughout my present drawings
20 the ?replace is a real means of heating, it is de
I have illustrated one form of curtain which has
sirable to provide the same arrangement of bank
proved very satisfactory. This consists of a plu
rality of substantially semi-circular plates or
ing a ?re as is possible with furnaces, and the
None of the devices inspected do more than
25 to provide a directing means for the smoke.
With my present device, however, I provide a
de?nite curtain or closure which will be substan~
readily after the showing of Figure 2 and the
tially air tight, will permit of actually excluding
hinge thus shown is relatively air tight, yet pro
the air from a ?replace ?re without in any way
vides a hinge construction that can be relied up
on to work smoothly. To have the same roll 30
easily on a central spindle or roller member, as
M, it has been found desirable to have the hinged.
interfering with the chimney opening.
It fur
ther acts as a screen to hide- from view the ?re
place opening in the floor which so often be
comes a natural dumping ground for sweepings
and the like.
My present invention is believed
35 to overcome the de?ciencies heretofore existing
and to provide means that will make a ?replace
as safe as any stove or furnace; means that will
permit actually controlling the ?re to the point
of suffocation if necessary. I provide a curtain
40 which can be adjusted to meet the need. In
starting a ?re, for instance, it can be drawn
quite low down so that the draft, normally
created in the chimney, will be forced to draw
in air near the floor so that it will pass up
through the grate or coal basket, or underneath
the wood as it is raised above the hearth by
andirons, or the like, and the ?re can be built
quite close to the curtain so as to receive ade
5_() quate draft.
Other and more speci?c objects will be appar—
ent from the following description taken in con
nection with the accompanying drawings, where
links 8 each being provided with an open hook
portion l0 and a bead portion I2. When so ar
ranged it has been found that the placement of a
unit can be easily effected; that it will draw up
Figure 1 is a perspective View showing my de
members ofv somewhat different chord distances
so that the joints are staggered around the roller
and thus lie most compactly when rolled up.
At the lower end in the present showing I‘have
illustrated- a straight, hinged member It. This
is merely for distinction in appearance and might
be asegmental member as the others. The lower
end of this member I provide with a lock bar l8.
This is formed preferably of a heavy wire which
at its center 20 is twisted to form the handle 2|.
This twisting makes it possible to adjust the over
all length of bar l8 so that a properly ?tted in
stallation can be easily effected. Each end of 45
bar I8 is formed with a return bend as 23 and
24 having the free ends 25 and 26 respectively
parallel to that portion of curtain l6 which en
closes the long stretch of bar la. The purpose of
these return shafts is to provide a locking ar 50
rangement for my curtain when adjusted in its
lower positions. This is accomplished by pro—
viding corrugated guideways as 30 and 3! which
are so spaced apart that they will not permit
the turning of bar l8 thus providing a toggle 55
be built up of a plurality of parts in accordance
with the installation requirements. As a means
locking means which looks the curtain against
upward movement.
Roller I4, to which the upper end of my joint
ed curtain is secured, is mounted for rotation
upon inserted bearing members 33 and 34. These
of adjusting my device and aiding in the ease
of installation I provide a plurality of expansion
bolts 62 with screws operating in slots 64 in the
two members have an outside diameter equal to
end plate members.
the inside diameter of roller I4 and are further
In order to obtain more satisfactory results
from my device it is desirable that the same be
provided with the extension lugs as 36 and 31,
respectively, which are adapted to engage in slot
10 38 formed in the tubular roller l4. Each of these
bearing members further is relieved as at 40 and
4H so as to accommodate the turned over lip 43
where the upper curtain member is secured in
slot 38. Bearing member 33 has an outwardly
set in ?re clay so that any qualities of the side
walls of the ?re place may be compensated for 10
and a seal be obtained around the margins. It
is also desirable to give an exit for any gases that
15 extending journal portion 44 which engages the
might be trapped in the housing around roller
I4 and to this end I have provided a plurality of
openings 64 which enables the draft of the chim 15
end plate 46 of my housing assembly. The jour~
nal for the other end is provided by the rod 48
which has a square end 56, that in turn is secured
in the opposite end plates 52 and thus held
20 against rotation. Hole 53 in member 34 should be
ney to withdraw any gases from the housing.
When so installed in a substantially air tight
manner it is impossible for any down drafts to
carry fumes, smoke or ashes out into the room.
The foregoing description and the accom 20
of such a size as to form a suitable bearing sur
face on rod 48.
Disposed within roller I4 and about rod 48 is
the tortion spring 54. This is ?xedly secured to
25 rod 48 at one end or otherwise secured against
rotation with its free end 55 formed so as to be
engaged in slot 38 and thus, as roller I4 is re
volved, a tortional resistance is set up within
spring 54. A suitable guide or rest for the end of
rod 48 is provided with washer 51 which should
be a free ?t within roller I4 where it may slide
without undue friction as the roller is revolved.
In the accompanying drawings I have indicated
one spring 54 extending part way along the open—
ing of the ?replace. Ordinarily it has been found
that one spring can be used with ?replace open
ings of normal extent such as are used in coal
burning ?replaces. If, however, a larger opening
is employed it is often desirable to use two such
springs, one in each end of roller I4 in which
case the springs would be oppositely faced so that
they would each have equal resistance to the un
rolling of the curtain and tend at all times to re
store it to its upper or rolled up position. This
provides upward drag on the curtain which
permits the successful operation of the toggle
locking and adjusting means provided by lock
ing bar I8.
I have found it desirable to fully enclose my
roller I4, after the showing of Figure 2, so that
if the screen is pulled fully down as would be
done if the ?re were banked or otherwise smoth
ered, it will prevent escape of the pent up gases
that are so obnoxious.
This can be accomplished
by extending the uncorrugated portions of guides
30 and 3| upwardly until they engage a folded-in
end as 60 of end plates 4B—-52 or the housing may
panying drawings are believed to clearly disclose
a preferred embodiment of my invention but it
will be understood that this disclosure is merely
illustrative and that such changes in the inven
tion may be made as are fairly within the scope 25
and spirit of the following claims.
I claim:
1. The combination in a ?exible screen adapt
ed to be mounted in a ?re place, with a spring
wound roller for the screen, of a spaced pair of 30
guides each comprising a pair of spaced corru
gated plates, an oscillatable lock-bar mounted in
the free end of the screen and adapted to frie~
tionally engage two of the corrugated plates, and
locking means on the lock-bar for engagement 35
with the other two guide plates.
2. The combination with a ?exible screen and
its spring-wound roller, of a pair of laterally
spaced guides each having spaced opposed cor
rugated faces, an oscillatable lock bar mounted 40
in the ?exible screen and frictionally engaged
in two corrugated faces, said lock bar having
return bends at its ends, and the free ends of
said return bends having frictional engagement
with the other two corrugated faces.
3. In a ?replace screen, the combination with
a.housing having spaced depending legs, and a
spring-wound ?exible screen mounted in the
housing with its lateral edges guided in said
legs, of means at the free end of the screen
adapted to impinge against one wall of a leg,
and said means also including a retaining device
adapted to impinge against an opposite wall of
said leg, for holding the screen in adjusted posi
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