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Патент USA US2114464

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April 19, 1938.
v
G. |_I CERAMI
`
2’î14’464 l
DOOR CLOS ER
Filed Jan. 16,` 1936 _’
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2 sheets-sheet 1
April 19, 1938.
G. L. CERAMI
2,1 14,464
DOOR CLOSER
Filed Jan. 16, 1956
2 Sheets-Sheet 2
Patented Apr. 19, -193:8
2,114,464>
UNITED STATES PATENT OFFICE
2,114,464
DOOR CLOSER
Giuseppe L. CeramLBrooklyn, N. Y., assigner to`
'
Cerami Self-Closing Device Corporation, New
York, N. Y.
Application January 16, 1936, Serial No. 59,465 '
19 Claims.
This invention relates to spring means for
holding hinged doors normally closed and. for
urging them toy closed position when open. The
invention further relates to spring hinges of the
5 general type shown anddescribed in my prior ap
plication for patent for spring hinge, filed July 5,>
1935 and bearing the Serial No. 29,985.
One important object of this invention is to
simplify the construction of my aforesaid prior
10 application so as tov effectively accomplish the de
sired result with a considerably less number of
parts.
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y
'
A second important object of the v'invention 1s
to so arrange the parts that they may be as
15 sembled and disassembled with great ease in
making repairs and lubrication of the device.
A third important object of the invention is-toV
simplify the different parts of the invention so
that they may be readily machined as by auto
matic or semi-automatic machine tools thuspro
viding for low cost production.
ì I
A fourth important object ofthe invention is
to provide a novel device of this sort which may
be applied to a hinge supported door whilenot in
itself constituting a hinge.
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Y
A ñfth important object of the invention is to
provide novel means whereby the tension of the
springs used in the device may be adjusted.
A sixth important' object of the invention is~to
30 provide novel means, in connection with >such a
device, whereby the ¿door may be latched in open
position against’accidental closing.A
l
_
With the above and other objects in view as
will be hereinafter apparent, the invention con
35 sists in general of certain novel details of con
struction and combinations of parts hereinafter
fully described, illustrated in the accompanying
drawings and specifically claimed.
.
>
' In the accompanying drawings like characters
40 of reference indicate like parts in the several
views, and:
Fig. 1 is a horizontal section through a portion
of a door and its frame and showing one form of
45
the device in position, the latterl beingv shown
partly in section.
Fig. 2 is a vertical section through such door
and frame likewise sh'owing such device partly in
section and partly in elevation.
50, Fig. 3 is a perspective view of this .form of the
invention removed from the door and frame and
having its casing also removed.
Fig. 4 is a detail section on the line 4_4 of
Fig. 3.
55
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\ Fig. 5 is a small scale section through a. door
and frame with the door partly open and the
device installed.
Fig. 6 is a plan .View ~of a second form of the
invention with those parts of a door and frame to
which it is attached indicated in dotted lines.
5
Fig. 7 is a perspective view of a pair of hinge
leaves` adapted to constitute parts of this second
form.
~
-
Fig. 8 is a section on the line 8-8 of Fig. 6, cer
tain parts being left in elevation.
'
10>
Fig. 9 is a section on the line 9_9 of Fig. 8.
Fig. 10 is a rear elevation of this form of the
invention.
.
Fig. 1l is avsection on the line II-II of Fig. 8.
Fig. 12 is a perspective View showing a means 15
for attaching the device to the edge of a door be
tween the'door hinges.
~ ~
.
Fig. 13 is a section similar to. Fig. 9 but showing
the attaching means of Fig. 12.v
In the forms of the invention here shown the 20
door is indicated at D and the part of the frame
carrying the door hinges at F,l the latter being
provided with a pocket P‘ wherein the main part
or body ofthe invention is seated.
In the' forms of the invention shown in Figs. l 2‘5
to 5 the body of the devicev comprises a front plate
I0 from the _rear face of which extends side walls
I I and `top and bottomwalls I2, lthese walls form
ing a rectangular- casing open at its rear end and
opening at its front end through the plate ID. . 30
Slidable in this casing is a plunger I3 vertically
reduced atits forward end to form a hinge eye
I3’. Extending from the rear end of this plunger
isßa pair of vertically spaced parallel bores i4
and slots I5. ASaid slots extend from the rear 35
ends of these bores I4 through the top and bot
tom faces of said plunger I3. Seated in the bores
I4 is a pair of strong coiled compression springs
I 6 which have their rear ends connected by a seat
plate I1. Across the slots I5 extend pivot pins I8 40
whereon are -pivoted levers I9 each having a short
arm bearing against the rear face of the plate Il
and a long arm bearing against the rear of a` roll
er 20 journalled in a slot 2| at the rear of a plate
or wall I2.
’
45
In connection with this part of the device there
is provided a door plate 23 having vertically
spaced hinge eyes 24 between which fits the hinge
eye I3', a pin 25 passing through the eyes and
y
thus pivotally connecting the door plate with the 50
parts* supported by the door frame, that is, the
body of the device.
The plunger is provided `opposite one of the
hinge eyes with a slot 26 registering with a slot
21 in one side of the casing. A bell crank lever 55
2
2,114,464
28 is pivoted in the slot 26 and has an arm ex
tending in the slot 2'! but normally held out of
contact with the adjacent eye 24 by a light spring
29. This lever is provided with a lug 30 which
may be moved by a user to engage in a notch 3l
when the door is fully open. Obviously there
may be several of such notches to- hold the door
in any desired open position.
In operation as the door is opened as shown in
apart thus forcing the forward spring seats rear
wardly and compressing the springs.
'I‘here has thus been provided a simple and
eflicient device of the kind described and for the
purpose specified.
It is obvious that minor changes may be made
in the form and construction of the invention
without departing from the material and spirit
thereof. It is not, therefore, desired to confine
the invention to the exact form herein shown
Fig. 5, the plunger will be pulled out. This moves
the pivots I8 forwardly and causes the levers . and described, but it is desired to include all such
I9, by engagement with the iixedly positioned
rollers, to tilt so that their short ends move for'
wardly relative to the plunger and thuscompress
15 the springs I6. Obviously, when the door is re
leased these springs will act to restore the levers
as properly come within the scope claimed.
Having thus described the invention, what is
claimed as new, is:
1. In a device for the purpose described, a
to normal position and draw the plunger rear
face plate, a casing carried by the face plate and
opening therethrough, a plunger slidable in said
wardly thus closing the door.
*casing to move in and out through said face
'
In the form of the invention shown in Figs. 6
20 to 13 there are also a body portion and a door
portion. This body portion includes a facel plate
32 projecting rearwardly from which is a casing
having a central rectangular portion 33 open at
its rear end and open at its front end'through
25 the face plate 32. Bores 34 are formed in this
casing above and below the central portion 33.
Bores 35 extend vertically through the bores 34
and open into the central part 33 in alignment
with each other. Slidable in Vthe bores >35 are
30 pistons 36 bifurcated at their inner ends and`
these pistons are provided on their rear faces
with bevelled cam notches 31. ‘In the notches
3l engage forwardly extending lips 38 formed
on forward spring seats 39. Bolts 40 extend ro
35 tatably through the face plate 32 ‘centrally of the
longitudinal bores 34 and pass through thebi
furcations of the pistons and slidably through
the spring seats. On ther rear ends of' these bolts
are nuts 4| and between the front and rear
40 spring seats are coiled compression springs 42 the
tension and compression of which may be ad
justed by rotation of the bolts 40. These springs
act to force the pistons 3B inwardly by engage
ment with the bevels of the notches 31..
slidable in the casing 33 is a plunger 43 having
45
inclined channels 44 in its upper and lower edges,
these channels increasing in depth from rear to
front so that a wedge like portion is left between
said channels. Rollers 45 are journalled in the
50. bifurcated ends of the pistons and engage the
bottoms of these channels so that, as the pistons
are forced towards each other the plunger will
be forced rearwardly. Obviously, the inclination
of the bevelled faces of the pistons and the in
55 clination of the channels will be such as to ac
complish this result. Also, whatever -inclination
is used the forward movement `of the plunger
43 will be spring resisted.`
'
'
In the forward end of the‘plunger 43 is a
60 transverse slot 46 at the rear end of which is
pivoted a link 4l which projects forwardly of the
plunger 43 and is provided at its forward end
with a hinge eye 48.
\
'
The door supported part of this device may
65 constitute one leaf 49 ofA a hinge having a leaf
5B for attachment to the face plate’32 and pro
vided with an opening El through which the
plunger 43 may pass. In this form the leaf 49
has a pair of hinge ears 5.2 between which the
70 forward end of the link 41 is pivoted. Other
wise it may consist of a plain plate 53 having a
pair of hinge ears 54 between which the forward
end of the link 4l’ is pivoted.
»
plate, said casing and plunger constituting a pair
of telescopic members, one of said members be
ing provided with a pair of longitudinal bores, a
horizontally disposed compression spring in> each
bore, each of said springs having one end s-up
ported in the bore Aagainst longitudinal move
ment and adapted for coactual cooperative move 25
ment, a doorplate movable toward and from the
face plate, an operative connection connecting
the plunger and door plate, and means engaging
the free ends of the springs actuated by forward
movement of said plunger for synchronously 30
compressing the springs in a single direction.
2. In a device for the purpose described, a face
plate, a casing carried by the face plate and
opening therethrough, a plunger slidable in said
casing to move in and out through said casing,
said plunger having a pair of longitudinal bores
closed at their forward ends, coiled compression
springs held in said bores and resting against the
closed forward ends, and spring compressing
means engaging the rear ends ofv said springs
and operable to compress the springs upon for
ward movement of the plunger in the casing.
3. In a device for the purpose described, a
face plate, a casing carried by the face plate and
opening therethrough, a plunger slidable in said 45.
casing to move in and out through said> casing,
said plunger having a pair of longitudinal bores
closed at their forward ends, coiled compression
springs'held in said bores and resting against the
closed forward ends, a seat plate at the rear ends 50
of said springs, levers pivoted intermediate their
ends to the plunger at the rear thereof and each
havingone arm pressing against the rear face
of the seat plate, and rollers journalled in fixed
positions on the rear part of the casing and en
gaging’the forward faces of the remaining arms
of said levers.
-'
4. In a device for the purpose described, a face
plate, a casing carried by the faceplate and open
ing therethrough, a lplunger slidable in said cas 60
ing to move in and out through said casing, said
plunger having a pair of longitudinal bores closed
at their forward ends, coiled compression springs
held in said bores and resting against the closed
forward ends, spring compressing means engag 65
ing the rear ends of said springs and operable to
compress the springs upon forward movement of
the plunger in the casing, and a door plate nor
mally resting against the forward face of the
face plate and hingedly connected to the forward 70
end of said plunger.
5. In a device for the purpose described, a face
plate, a casing carried by the face plate and open
ing therethrough, a plunger slidable in said cas'
43 is pulled forward and the pistons are wedged ing to move in and out through said casing, said 75
In either case as the door is opened the plunger
2,114,464
plunger -having a pair of longitudinal bores closed
at their forward ends, coiled compression springs
held in said bores and resting against the closed
forward ends, a seat plate at the rear ends of
said springs, levers pivoted intermediate their
ends to the plunger at the rear thereof and each
having one arm pressing against the rear face
of the seat plate, rollers journalled in fixed posi
tions on the rear part of the casing and engaging
10 the forward faces of the remaining arms of said
levers, and a door plate normally resting against
the forward face of the face plate and hingedly
connected to the forward end of said plunger.
6. In a device for the purpose described, a face
15 plate, a casing carried by the face plate and open
ing therethrough, a plunger slidable in said cas
ing to move in and out through said casing, said
plunger having a pair of longitudinal bores closed
at their forward ends, coiled compression springs
20 held in said bores and resting against the closed
forward ends, spring compressing means engaging
the rear ends of said springs and operable to com
press the springs upon forward movement of the
plunger in the casing, a door plate normally rest
25 ing against the forward face of the face plate
and hingedly connected to the forward end of
said plunger, and cooperating latch means on said
plunger and door plate to hold the door plate in
desired angular relation.
30
'7. In a device for the purpose described, a face
3
a plunger `movable -in- the casing between the
bores and having its upper and lower sides in
clined to form a central wedge portion arranged
with its larger end at the rear, pistons movable
through the vertical bores and supported on the
inclined sides of the wedge portion, said pistons
being provided with cam faces, spring seats in
said longitudinal bores engaging said cam faces,
springs extending in the longitudinal bores and
each having an end engaging a spring seat, spring 10
seats supporting the remaining ends of the
springs against movement, and means to adjust
the positions of the last mentioned spring seats.
10. In a device of the kind described, a face
plate, a casing carried by and opening through 15
said face plate, said casing having longitudinal
bores respectively at the top and bottom edges
thereof, said casing further having aligned ver
tical bores leading'out through said upper and
lower parts and intersecting said first bores, a 20
plunger movable in the casing between the bores
and having its upper and lower sides inclined to
form a central wedge portion arranged with its
larger end at the rear, pistons movable through
the vertical bores and supported on the inclined 25
sides of the wedge portion, said longitudinal bores
guiding said cam faces, springs extending in the
longitudinal bores and each having an end en
gaging a spring seat, spring seats supporting the
remaining ends of the springs against movement, 30
plate, a casing carried by the face plate and open
ing therethrough, a plunger slidable in said cas
ing to move in and out through said casing, said
plunger having a pair of longitudinal bores closed
means to adjust the positions of the last men
at their forward ends, coiled compression springs
l1. A device for automatically closing doors, 35
comprising a face plate, a casing carried by the
face platey and movable therewith, reciprocable
means in the casing adapted to extend thru the
face plate and being telescopic therewith, a plu
rality of spaced, parallel compression members 40
movable in said reciprocable means, each of the
held in said bores and resting against the closed
forward ends, a seat plate at the rear ends of
said springs, levers pivoted intermediate their
ends to the plunger at the rear thereof and each
40 having one arm pressing against the rear face of
the seat plate, rollers journalled in fixed posi
tions on the rear part of the casing and engaging
the forward faces of the remaining arms of said
levers., a door plate normally resting against the
45 forward face of the face plate and hingedly con
nected to the forward end of said plunger, and
cooperating latch means on said plunger and
door plate to hold the door plate in desired angu
lar relation.
8. In a device of the kind described, a face
50
plate, a casing carried by and opening through
said face plate, said casing having longitudinal
bores respectively at the top and bottom edges
thereof, said casing further having aligned ver
55 tical bores leading out through said upper and
tioned spring seats, a door plate normally resting
against said face plate, and a link pivotally con
nected to said door plate and plunger.
members having one end supported in the cas
ing, a door plate connecting the face plate and
relatively movable therewith, operable means in
terconnecting the door plate and the reciproca 45
ble means, and actuable means for engaging the
free ends of the compression members upon
movement of the reciprocable means whereby the
members are simultaneously compressed to re
turn the reciprocable member to normal posi
face plate having a casing, opening therewith,
reciprocable means connecting the door plate and
movable in and out of the casing, a plurality of 55
lower parts and intersecting said first bores, a
plunger movable in the casing between the bores
and having its upper and lower sides inclined to
form a central wedge portion arranged with its
60 larger end at the rear, pistons movable through
the vertical bores and supported on the inclined
the compression members, a pair of opposed le
vers pivoted intermediate their ends to the plung
sides of the wedge portion, said pistons being
provided with cam faces, spring seats in said
longitudinal bores engaging said cam faces,
65 springs extending in the longitudinal bores and
the levers.
each having an end engaging a spring seat, and
spring seats supporting the remaining ends of
the springs against movement.
9. In a device of the kind described, a face
70 plate, an open casing carried by and opening
through said face plate, said casing having longi
tudinal bores respectively at the top and bottom
edges thereof, said casing further having aligned
vertical bores leading out through said upper
75 and lower parts and intersecting said ñrst bores,
50
tion.
12. 'I‘he combination with a door plate, of a
spaced compression members in the reciprocable
means, supporting means abutting one end of
er for pressing against the supporting means on 60
movement of the plunger, and opposed rollers
journalled to the casing for slidably contacting
13. The .combination according to claim 12,
in which cooperative latching means are mount 65
ed on the plunger to engage the door plate to
hold the same in desired stationary position.
14. A closing device for doors and the like,
comprising a door plate, a casing having a face
plate normally abutting the door plate, a plung 70
er reciprocable in the casing and connected with
the door plate, a plurality of spaced parallel
compression members mounted in the casing and
actuable by said plunger, upon movement of the
door plate, and pivoted contacting means in the
4
2,114,464
casing abuttingone end of the compression mem
bers for normally returning the plunger to its
position in the casing.
15. A device according to claim 14, in which
the plunger is provided with tensioned latching
means for engaging the door plate and retaining
the same in desired angular relation.
16. A device for automatically closing doors,
comprising a face plate, a casing connected with
10 the face plate and opening therethru, plunging
reciprocable means in said casing and forming
a telescopic member therewith, one of said mem
bers being provided with a pair of longitudinal
bores, coacting, cooperative horizontal compres
l5. sion members for the bores, being supported at
one end thereof_against longitudinal movement,
a door plate pivotally connected With the plung
ing means, and means in connection with the
fee ends of the spring actuable by the forward
movement of the plunger for horizontally com
pressing the springs in a single direction counter
to the action of a door when being swung open.
17. A door closing device, comprising a cas
ing, a reciprocable plunger in the casing, a plate
member hingedly connected with the plunger, and
spaced horizontal spring members in the casing
in cooperative connection with the plunger
adapted upon compression of the springs to re
tract the plunger into the casing.
18. A closing device for doors and the like,
comprising a casing, a plunger reciprocable in
and out of the casing, a door plate in hinged
connection with the plunger, a plurality of spaced, 10
parallel compression members adapted to coact
on reciprocation of the plunger, disposed on
either side of the plunger in the casing, and a
plurality of coacting means interconnecting the
members and the plunger for normally drawing 15
the same into rest position.
19. A closing device according to claim 18 in
which the plunger is provided with means for
engaging the door plate and retain the same in
ñxed position against the action of the compres
sion members.
GIUSEPPE L. CERAMI.
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