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Патент USA US3093107

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June 11, 1963
3,093,097
M. M. ROSENFELD
BOMB SHELTER
Filed Oct. 19. 1961
.4
0
F163
. 7?.
INVENTOR.
MORTON M. ROSENFELD
BY
M g! W
ATTORNEY
United States Patent ?tice
3
3,93,097.
Patented June 11, 1963
2
7
FIGURE 2 is a transverse sectional view taken along
3,993,639‘?
the lines 2—2.
FIGURE 3 is an elevational view partly in section illus
trating the ground level portion of the access means with
the lid in a partially opened position.
30MB SliiELTER
Morton M. Rosenfeid, Mount Vernon, N35.
(271 Madison Ave, New York, NE.)
Filed (Bet. 1%, i961, Ser. No. 146,227
8 Qlairns. (Cl. 109-1)
This invention relates to a bomb shelter, and more
particularly, to an underground bomb shelter having a
novel access means.
FIGURE 4 is an illustration similar to FIGURE 3,
but illustrating another embodiment of the present in
vention.
Referring to the drawing in detail, wherein like nu
10 merals indicate like elements, there is shown in FIGURE
1 an underground enclosure such as a bomb shelter desig
nated generally as 10.
The bomb shelter 10 includes ‘a main housing 12 par
As a general rule, bomb shelters and other under
ground enclosures are provided with access means so
that a person may have access to the underground bomb
tially illustrated in FIGURE 1. The main housing 12
shelter or enclosure from a point above ground level.
Such access means may be in the nature of a cylinder 15 is disposed below ground level and may be cylindrical
in transverse cross section as illustrated. Alternatively,
having one end at ground level and a passageway pro
the main housing 12 may be rectangular in cross sec~
viding communication between the other end of the cylin
tion and made from blocks or poured concrete if desired.
der and the underground enclosure or bomb shelter.
The main housing 12. is preferably located ‘adjacent a
The end of the cylinder adjacent ground level must be
provided with some type of lid or cover for selectively 20 building or the like (not shown) so that the end of the
housing 12 (not shown) may communicate with such
closing said end of the cylinder.
I have discovered that the mere provision of a pivotable
or reciprocable lid on the end of the cylinder adjacent
building. Also, the housing 12 is preferably provided
ground level is not entirely satisfactory.
ground level.
with a second access means which communicates with
Quite often,
Such second access means comprises an
dirt and other foreign matter is positioned adjacent the 25 escape cylinder 14 which is a hollow tube or the like
having one end adjacent ground level. An entrance is
provided between the other end of the escape cylinder
14 and the main housing 12.
periphery of the lid. If a bombing occurs which requires
use of the bomb shelter, it is to be expected that dirt,
‘stones, and other foreign matter will be dispersed so as
to be adjacent the lid. Under such circumstances, the
The escape cylinder 14 is upright and is provided with
‘a ladder 16 or other means so as to enable a person to
foreign matter will immediately enter the cylinder when
move from one end of the cylinder 14- to the other.
the lid is opened. This is objectionable especially if the
Guide rails 18 and 20 are preferably provided on op
lid is being opened by a person disposed within the cylin
posite sides of the ladder 16 so as to facilitate climbing
der and attempting to exit therefrom.
up and down the ladder 16. A guard cylinder 22 sur
In accordance with the present invention, a guard
cylinder is disposed around the escape cylinder. The 35 rounds the upper end of the escape ‘cylinder 14. The up
permost end of the cylinder 22 is adjacent ground level.
guard cylinder has a diameter substantially larger than
The lowermost end of the cylinder 22 preferably extends
the diameter of the escape cylinder thereby providing an
to a point adjacent the main housing 12. The diameter
annular space therebetween. The lid is of su?icient size
of the cylinder 22 is substantially larger than the diam—
so as to extend across the end of the guard cylinder at
ground level. In this manner, the loose matter adjacent 40 eter of the cylinder 14 thereby providing an ‘annular cham—
ber 24 around the upper end of the cylinder 14. The
the periphery of the lid will fall into the annular space.
bottom 26 of the chamber 24 may be the ‘dirt surrounding
To further prevent such matter from entering the escape
the lower portion of the cylinder 14.
cylinder, the lid is provided with a depending skirt which
A lid 28 extends across the ground level end of the
surrounds the upper end of the escape cylinder in the
closed disposition of the lid. In one embodiment of the 45 cylinder 22 and is pivotably secured thereto by means of
present invention, the lid is pivotably secured at its pe
riphery to the guard cylinder. In another embodiment of
the present invention, the lid is reciprocably disposed with
binge 30. In plan view, the shape of the lid 28 corre
sponds with the shape of the cylinder 22 in transverse
section. As illustrated, the guard cylinder 22 is circular
vide a bomb shelter with a novel access or exit means.
28 acts as a lid for the cylinder 14.
in transverse cross section. Accordingly, the lid 28 is
respect to the guard and escape cylinders.
It is an object of the present invention to provide a 50 circular in plan view. The periphery of the lid 28 is in
line with the outer peripheral surface of the cylinder 22.
novel access and exit means for an underground en
The upper end of the cylinder 14 lies in the same plane
closure.
!
as the upper end of the cylinder 22. Accordingly, the lid
It is another object of the present invention to pro
A manually oper
able latch member 32 is secured to the inner peripheral
surface of the lid 23 in a position so that it may cooperate
It is another ‘object ‘of the present invention to pro—
vide an underground enclosure access with means for
preventing foreign matter from entering thereinto when
with a latch member on the inner peripheral surface of
with a tubular access or exit means for preventing foreign
of the cylinder 14 so as to prevent contact when the lid
28 is moved from an opened to a closed disposition, and
the cylinder M. A depending annular wall 34 is pro
a lid or the like is moved to an opened disposition.
vided on the inner surface of the lid 28. The diameter
It is another object of the present invention to pro
vide an underground enclosure such as a bomb shelter 60 of the wall 34 is substantially greater than the diameter
matter from entering thereinto when ‘a lid is opened.
Other objects will appear hereinafter.
For the purpose of illustrating the invention there is
shown in the drawings forms which are presently pre
ferred; it being understood, however, that this invention
‘
vice versa.
As shown more clearly in FIGURE 3, movement of
the lid 28 from a closed disposition to an open or partially
opened position enables rocks, dirt, and other foreign.
matter to fall into the annular chamber 24. Accord
is not limited to the precise arrangements and instrumen
ingly, such matter will not enter the cylinder 14. The‘
talities shown.
annular wall 34 is provided to further assure that the
FIGURE 1 is a partial sectional View of an under
70 foreign matter will not enter the cylinder 14. Thus, the
ground enclosure embodying the novel access or exit
lid 28 will be partially opened with respect to the guard
means of the present invention.
cylinder 22 before the annular wall 34 clears the upper
3,093,097
4
3
end of the cylinder 14. In this manner, the annular
chamber 24 will be in communication with atmosphere
before the cylinder 14 thereby assuring that foreign mat
said one end of said ?rst mentioned wall means and de
?ning an annular chamber therebetween, one end of said
second wall means lying in substantially the same plane
ter will enter the chamber 24.
as said one end of said ?rst mentioned wall means, a lid
extending across said one end of said second wall means,
and means mounting said lid for movement between an
opened disposition and a closed disposition, in the closed
disposition of said lid, said lid being in engagement with
As shown more clearly in FIGURE 4, there is illus
trated the upper end of the access and exit means for
another embodiment of the present invention and desig
nated generally as 40. The access means 40 is identical
with the access means illustrated in FIGURES 1-3 ex
said one end of said second wall means.
2. Apparatus in accordance with claim 1 wherein said
cept as will be made clear hereinafter.
A guard cylinder 22' surrounds the upper end of the
mounting means provides said lid with reciprocatory mo
tion between its opened and closed dispositions.
escape cylinder 14’ in the identical manner as illustrated
in FIGURES 1-3. A lid 28' extends across the upper
3. Apparatus comprising an underground enclosure,
end of the cylinder 22'. As illustrated, the lid 28' is dish
wall means de?ning an escape passage from said enclosure
shaped in tranverse cross section. A depending annular 15 to ground level, one end of said wall means being adjacent
wall extends from the inner surface of the lid 28'. The
to ground level, a second wall means surrounding said
diameter of the wall 34’ is slightly larger than the diam
one end of said ?rst-mentioned wal-l means and de?ning
eter of the cylinder 14'. The lid 28' is mounted for re
an annular chamber therebetween, one end of said second
ciprocation between its opened and closed disposition.
wall means lying in substantially the same plane as said
The wall 34’ cooperates with the cylinder 14’ to guide 20 one end of said ?rst-mentioned wall means, a lid extend
the reciprocatory movement of the lid 28'. A rod-like
ing across said one end of said second wall means, means
member 42 depends from the inner surface of the lid
mounting said lid for movement between an open disposi
28’ and extends into the cylinder 14'. The inner periph
tion and a closed disposition, in the closed disposition of
eral surface of the cylinder 14’ has a conventional jack
said lid, said lid being in engagement with said one end
mechanism 44 ?xedly secured thereto for cooperation
of said second wall means, and a depending wall, said
with the rod-like member 42. Thus, the lid 28' may be
wall surrounding said one end of said ?rst wall means in
reciprocated to an opened disposition by manually actu
ating the jack mechanism 44.
In the partially opened disposition of the lid 28’, it will
the closed disposition of said lid.
4. Apparatus in accordance ‘with claim 3 wherein said
lid is guided by cooperation between said wall and said
be noted that the annular chamber 24’ is in communi 30
?rst wall means.
cation with atmosphere whereas the cylinder 14' is still
5. A bomb shelter comprising an underground hous
ing, a circular wall providing an escape passage from
said housing to ground level, a guard cylinder surround~
ing the upper end of said circular wall and de?ning an
annular chamber there-between, the upper end of said
in communication with the space within the annular wall
34'. In order to facilitate movement of the lids 28 and
28’, the lids are preferably made from a lightweight, non
corrosive material such as aluminum, reinforced plastics,
etc. Since the lids 28 and 28' extend across the upper
end of the cylinders 22 and 22', it will be seen that the
present invention substantially eliminates the possibility
_
circular wall and said guard cylinder being substantially
at ground level, an imperforate lid extending across the
upper end of said circular wall and said guard cylinder,
of surface water entering the escape cylinders 14 and 14'.
and means mounting said lid for movement between an
Since the bottom 26 of the annular chamber surrounding 40 open and a closed disposition with respect to the upper end
the escape cylinder is a dirt ?oor, surface waters entering
of said guard cylinder.
the annular chamber are readily dissipated. Thus, it will
6. A bomb shelter comprising an underground housing,
be seen that it is not necessary to provide a water tight
a circular wall providing an escape passage from said
seal between the lids 28 and 28’ and the upper end of the
housing to ground level, a guard cylinder surrounding the
cylinders 22 and 22’, respectively. It will be appreciated
upper end of said circular wall and de?ning an annular
chamber therebetween, the upper end of said circular wall
by those skilled in the art that the provision of the an‘
nular chamber around the upper end of the escape cylin
der is of particular signi?cance when the foreign matter
or surface water is contaminated.
Thus, such contami
and said guard cylinder being substantial-1y at ground
level, an imperforate lid extending across the upper end
of said circular wall and said guard cylinder, means
nated water or matter cannot enter the escape cylinder
mounting said lid for movement between an open and a
when the lid is opened.
de?ning an escape passage from an underground enclo
closed disposition with respect to the upper end of said
guard cylinder, and an annular wall depending from the
inner surface of said lid, said annular wall surrounding
said circular wall in the closed disposition of said lid.
7. A bomb shelter in accordance with claim 6 wherein
said mounting means includes members for reciprocating
said lid with respect to said guard cylinder in a direction
corresponding to the longitudinal axis of said guard
sure. to ground level. As used hereinafter, the guard
cylinder.
and de?ning an annular chamber therebetween.
The present invention may be embodied in other spe
ci?c forms without departing from the spirit or essential
section with its highest point at the center thereof and
its lowest point around the periphery thereof.
References Cited in the ?le of this patent
UNITED STATES PATENTS
While the cylinders 14, 14' and 22 and 22' are illus
trated by hatching to indicate they are made from metal,
it will be appreciated that the same is merely for purposes
of illustration. The said cylinders may be made from
metal, concrete, plastic, wood, etc. As used hereinafter,
cylinders 14 and 14' may be referred to as a wall means
cylinders 22 and 22’ may be referred to as a wall means 60
8. A bomb shelter in accordance with claim 6 wherein
surrounding one end of said ?rst mentioned wall means
said imperforate lid is dish-shaped in transverse cross
attributes thereof and, accordingly, reference should be
made to the appended claims, rather than to the foregoing
speci?cation as indicating the scope of the invention.
2,382,171
Pomykala __________ __ Aug. 14, 1945
1. Apparatus comprising an underground enclosure,
2,822,765
2,871,802
Rudinger ___________ __ Feb. 11, 1958
Fishler ______________ __ Feb. 3, 1959
adjacent ground level, a second wall means surrounding
165,207
Austria _____________ __ Feb. 10, 1950
I claim:
wall means de?ning an escape passage from said enclo 70
sure to ground level, one end of said wall means being
FOREIGN PATENTS
i)
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