Note: Descriptions are shown in the official language in which they were submitted.
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CORRUGATED FIBERB~A.RD CASKET LIDS
BACKGROUND AND STATEMENT OF OBJECT_
This information relates to an improved form of
lid or cover particularly adapted for use in tbe fabrica-
tion of coffins or caskets formed of corruyated fiberboard.
It is an object of the invention to provide a
lid having substantially improved strength characteristics
in various planes, notwithstanding the fabrication of the
lid from corrugated fiberboard.
It is a further object of the invention to provide
: a ca~ket lid construction which may be extended throughout
the entire length of the casket, or which may alternatively
be cut in the mid-region in order to form a lid comprised
of two separately moveable pieces.
Still further, it is another objective of the
invention to provide a form of construction and reinforce-
ment which is readily adaptable for use in alternative forms
of the lid having different degrees of domed configuration
in the central region, or alternatively being flat in the
central region.
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In accordance with the Eoregoing~ the invention
provides a method for making a casket lid, which me-thod
comprises cutting planar sheet material to form a lid-forming
blank of area comprising a substantial portion of the length
of the lid and having a transverse dimension approximating
the width of the lid, said sheet material comprising pre-
formed corrugated fiberboard and having the corrugations
extended in a direction transverse].y of the lid, scoring
the cut blank along lines paralleling the length of the
lid and spaced from the lateral edges to define marginal
edge portions, flexing the marginal edge portions on said
score lines to provide bevelled marginal edge portions along
the side edges of the lid, and applying a lid reinforcing
component to the bevel-edged lid, said reinforcing component
being cut from preformed corrugated fiberboard and being
adhesively secured to the corrugated fiberboard of said
blank with the corrugations extended longitudinally of the
lid.
In accordance with the foregoing, the invention
also provides a lid for the base or shell of a casket, the
lid comprising at least two pieces of corrugated fiberboard,
each comprising at least one corrugated layer and at least
one uncorrugated sheet, the two pieces being adhesively
interconnected with the corrugations of the two pieces ex-
tended at an angle to each other, a first one of said
la-
~'
pieces being extended transversely substantially through-
out the width of the lid with the corrugations thereof ex-
tended transversely of the lid, said first piece further
having downwardly flexed edge portions defining bevelled
edyes of the lid, and the second of said two pieces being
associated with the first piece in the region between the
inner edges of the downwardly flexed edge portions of the
lid ancl with the corrugations thereof extended longitudi-
nally of the lid.
In accordance with the foregoing, the invention
further provides a lid for the base or shell of a casket,
the lid comprising at least two pieces of corrugated fiber-
board, each comprising at least one corrugated layer and
at least one uncorrugated sheet, the two pieces being adhe-
sively interconnected with the corrugations of one piece
extended transversely of the lid and with the corrugations
of the other piece extended longitudinally of the lid, a
first one of sai~ pieces having an area extended substan-
~ially throughout the width of the lid and said first piece
further having flexed edge portions defining bevelled edges
of the lid, and the second of said two pieces being asso-
ciated with the first piece in the region bPtween the inner
edges of the downwardly flexed edge portions of the lid.
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BRIEF DESCRIPTION OF THE DR~WINGS
How the foregoing objectives and advantages are
at ained will appear more fully from the following descrip-
tion referring to the accompanying drawings. In the draw-
ings, three embodiments are illustrated, the first embodi
ment comprising Figures 1 to 10, inclusive, the second
embodiment comprising Figures 11 and 12~ and the third
embodiment comprisiny Figures 13 to 16, inclusive.
First Embodiment
Figure 1 is a side elevational view of a casket
with a domed lid applied thereto, the lid being constructed
in accordance with the present invention;
Figure 2 is a plan view of the assembly shown
in Figure 1~ with a portion of the central region of the
lid broken out in order to illustrate parts lying within;
Figure 3 is an enlarged fragmentary transverse
sectio]nal view taken as indicated by the section line 3-
3 on Figure 2;
Figure 4 is a ~ragmentary enlarged sectional view
taken as indicated by the section line 4-4 on E~igure 2;
Figure 5 is a further enlarged view of a detail
taken as indicated by the line 5-5 on Figure 4;
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Figure 6 is an enlarged fragmentary detailed view
taken as indicated by the circle marked Figur~ 6 applied
to Figure 3;
Figure 7 is a fragmentary sectional view taken
as indicated by the section line 7-7 on Figure 6;
Figure 8 is a perspective view of certain parts
of the lid of the first embodiment;
Figure 9 is an enlarged ~ragmentary sectional
view taken as indicated by the section line 9-9 on Figure
8; and
Figure lO is a fragmentary perspective view of
the lid of the first embodiment after having been subdivided
in the central region in order to form a lid of two parts
which are separately openable.
Second Embodiment
Figure ll is a view similar to Figure 3 but illus-
tra~ing the configuration of the second embod.iment, and
Figure 12 is a fragmentary sectional view taken
as indicated by the section line 12-12 on Figure 11.
Third EmbQdiment
Figure 13 is a view similar to Figures 6 and 11
but illustrating the third embodiment
Figure 14 is a ~ragmentary sectional view taken
as indicated by the section line 14-14 on Figure 16;
Figure 15 is an enlarged fragmentary sectional
view taken as indicated by the circle marked Figure 15 on
Figure 13; and
Fiyure 16 is a fragmentary perspective view of
lo an end portion of the casket lid of the third embodiment.
DETAILED DESCRIPTION OF THE DRAWINGS:
In considering various of the figures of the draw-
ings, it should be noted that the corrugations of the cor-
rugated fiberboard pieces employed in the fabrication of
the variou~ forms of casket lid disclosed are not illus-
trated in various o~ the sectional views, such as Figures
3, 4, 10, 11, 13 and 14. ~owever, as to each form, enlarged
fragmentary sectional views, such as Figures 5, 6, 7, 9,
12 and 15, are included in order to illustrate the construc~
tion of the fiberboard piPces employed and the vri ntation
of the corrugations of each piece employed.
~2~
As above indicated~ the present invention is con-
cerned with the construction of the lid of the casket, and
the various forms of lid disclosed may be employed with
a shell ox base of caskets of a variety of forms, it being
contemplated that the corrugated fiberboard lids of the
present invention will normally be employed in association
with a shell or base also formed of corrugated fiberboard.
Such a shell or base is shown in the fi~ures illustrating
the first embodiment. Thus, in Figures 1, 2, 3, 4 and 10,
the casket shell is shown as having inclined side walls
17 and inclined end walls 18. In a ty~ical embodiment of
the shell, framing elements may be provided as indi~ated
at 19 on the lower edges of the shell and may also be pro-
vided as indicated at 20 around the upper edges of the
shell. The side and end walls 17 and 18 are desirably
formed of corrugated fiberboard in a manner which need not
be considered herein, and the framing elements 19 and 20
may be ~ormed of wood.
The shell of the casket is also desirably provided
with handgrip rails such as indicated at 21 secured to the
walls of tbe shell by appropriate brackets 2~ in a manner
which need not be considexed herein.
Turnlng now to the embodiment of the lid as shown
in Figures 1 to 10, it will be seen that the lid disclosed
in those figures includes a sheet or compcnent extended
subs~antially throughout the area o the lid, this sheet
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having a central upwardly domed portion 23 and being formed
of corrugated fiberboard, for instance, of the type illus-
trated in FigurPs 6 and 7, having upper and lower sheets
with an intervening corrugated layer. Such a sheet is com~
monly referred to as single-wall fiberboard. As will be
seen from Figures 6 and 7, this sheet or layer 23 is posi
tioned so that the corrugations thereof extend transversely
of the lid.
The sheet 23, in addition to being domed in the
central region, also has bevel edg~ portions indicated in
various of the figures at 23a, which are arranged not only
along the side edses o the lid but also at the ends thereof.
In each of the four corners of this top sheet
23 of the lid, cuts are made as indicated at 24 in Figure
2~ and tapered portions of the klank form of which the lid
is fabricated are cut out at the corners so that when the
side and end portions of the lid are flexed to the curvature
and angular configuration indicated in Figures 3 and 4,
the tapered cut-out regions will ~e closed.
The specific configuration of the lid in the end
regions, and particularly in the regions where the end sur-
faces join the side surfaces, may vary somewhat, but it
is contemplated according to the present invention that
at least the major port.ion of khe lid be formed by a prin-
cipal lid component extended throughollt the width of the
lid and throughout at least most of the length of the lid
and having the corrugations thereof extended in a direction
transversely of the lid throughout not only the central
domed region but also throughout the bevelled side edge
portions thereof.
A5 seen particularly in Figures 3 and 4, the
marginal edge portions of this principal lid component
lQ identified by the numeral 23 are folded to engage marginal
edge framing elements 25 desirably formed of wood~ the
corrugated sheet material beîng secured to the edge framing
25 as by staples such as indicated at 26 in Figures 3 and
4.
The lid further includes another panel or layer
connected with the layer 23 at least in the central region
thereof. In the first embodiment (see particularly Figures
3, 4, 6 and 7), this additional layer is indicated at 27.
This component preferably comprises what is known in the
art as single face corrugated fiberboard, being formed oE
only a ~ingle plain layer and a single corrugated piece
adhesively boarded to each other. The corrugated layer
of this piece is desirably adhesively bonded to one of the
sur~ace layers of the single wall sheet 23 described above.
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:~2~
This re]ationship is shown in Figures 6 and 7; and from
Figures 6 and 7, it will Eurther be noted that the corru-
gations of the single face piece 27 and the corrugations
of the single wall piece 23 extend in different directions.
Preferably, as shown, the corrugations of the single wall
23 extend transversely of the lid, and the corruyations
of the single face 27 extend longitudinally of the lid.
This relationship is of importance in contributing rigidity
and strength to the lid structure. The inner single face
reinforcement layer desirably is of width approximating
the width of the central or domed portion of the layer 23,
but the reinforcing layer is not needed at the bevel edge
regions 23a. In addition, such reinforcement need not be
applied at the terminal end porkions of the lid.
As seen particularly in Figures 2, 3, 4, 8 and
9, the lid of the first embodiment also incorporates braces
in the form of transversely extended bridges, which are
also formed o~ corrugated fiberboard. These bridges are
identified in the drawings by the numeral 28, and as best
seen in Figure 8, there is a transverse bridge 28 located
~ear each end of the lid; and in the central region of the
lid, a plurality o such transverse bridges are arranged
in juxtaposed position.
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From Figures 5 and 9~ it will be seen that the
bridges are also formed of corrugated fiberboard components.
In the embodiment of Figures 1 to 10, inclusive, the com~
ponents employed for the bridges comprise triple-wall corru-
gated fiberboard elements. Thus, in Figure 5, it will be
seen that the component there shown comprises four plain
sheets separated by but adhesively bonded to three indi
vidual corrugated layers.
In the central region where three bridges are
included, as will be seen from Figure 9, there are three
side-by-side triple-wall corrugated components.
In the case of all of the bridges 28, either at
the end or in th~ central region of the lid, the corruga-
tions of the components used extend in a direction perpen-
dicular to the lid, and this is preferred in order to maxi-
mize the bracing contributed by the bridges. It should
also be noted that with the corrugations extended v~rtically
in the bridges tand~ thus, generally perpendicularly to
the li~d~, and with the corruga~ions of the layers 23 and
2a 27 extended respectively transversely of the lid and longi-
tudinally of the lid, the combined effect of the three dif-
ferent components interconnected with the corrugations
extended in three different directions maximizes the strength
and thereby provides for high strength with a minimum of
material.
~2~
As has been pointed out above, the lid provided
by the presen~ invention may, if desired, be cut in the
mid-region in order to prov.ide two lid panels. As shown
in Figure 10, this is desirably effected by cutting in the
central region of the centxal one of the three transverse
bridges 28 employed in the central region. Thus, as seen
in Figure 10, each portion of the lid includes one of the
bridges 28 and a portion of the central bridge 2.8a.
Whether the lid is mounted on the casket as one
1~ piece or as two pieces~ the lid is preferably mounted by
means of hinges as diagrammatically indicated at 29 in
Figure 10.
After construction of the completed casket and
lidJ fabric covering may be appliedr a portion of such a
covering being indica~ed at 30 in Figure 10.
The alternative embodiment shown in ~igu~es 11
and 12 includes a main single-wall layer 31 extended substan-
tially throughout the length and width of the lid, but in
this instance, the central portion of the lid is not domed
2Q but is flat. However, bevel edges 31a are desirably pro-
vided not only on the longitudinal edges of the lid but
also at the ends thereof. The inner panel 32, shown in
Figure 11, extends throughout the central region of the
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component 31. As in the embodiment of Figures 1 to 10~
it is contemplated that the corrugations of the single-wall
layer 31 be extended transversely of the lid, and the corru-
gations of the single-face layer 32 be extended longitud-
inally of the lid.
The lid of the embodiment shown in Figures 11
and 12 also includes transverse bridges 33 and, as seen
in Figure 12, these bridyes are formed of double-wall corru-
gated fibPrboard comprising three planar sheets and two
1~ corrugated layers. As in the first embodiment, the bridges
are adhesively bonded to the lid. The corrugations of this
component in Figure 12 extend vertically, i.e., transversely
to the general plane of the lid, thereby providing the inter-
bracing effect above described in combination with the trans-
verse and longitudinal corrugation extension provided in
the components 31 and 32 of which the lid is formed~
Turning now to the third embodiment, as shown
in Figures 13 to 16, it will be seen that the lid here shown
includes as one component a single-wall layer 34 having
bevel edge portions 34a along the side edges and also along
the end edges thereof. This component is formed of single-
wall corrugated fiberboard of the kind above described,
with the corrugations extended transv~rsely of the lid t
as in component 23 of the first embodiment and component
31 of the second embodiment.
In the embodiment of Figures 13 to 16, the addi-
tional component incorporated in the lid with corrugations
extending longitudinally of the lid comprises a layer 35
formed of double-wall corrugated fiberboard, as seen particu-
larly in Figure 15. It will be noted that the corrugations
of this component extend lengthwise of the lid, i.e., in
a direction perpendicular to the corrugations of the com-
ponent 34. The component 35, as seen in Figures 13 and
14, is domed transversely and also has domed end portions
in the end regions of the lid. Preferably, the end regions
are formed from a blank of tapered plan form so as to fit
into recessed cutouts at the ends of the components 35 and
34a along lines indicated at 36 in Fiyure 16. The end por-
tions, and the central part of the component 35, are also
adhesively secured to each other~ At the edges of the
component 35 along the lines of junction with the component
34, the inn2r layers of the double-wall fiberboard employed
may be cut back and the outer planar layer folded under
as indicated at 35a in Figure 15, in order to provide an
appreciable surface area for adhesivc bonding between the
edges of the component 35 and the edges of the component
34.
As in the first and second embodiments, transverse
reinforcement bridge~ 36 are also provided in the embodiment
in Figures 13 to 16, and these bridges are preferably applied
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and adhesively bonded in the end regions of the lid and
also i.n the central regionL In the preferred construction,
these bridges are desirably formed of triple-wall corrugated
fiberboard in the manner indicated .in Figure 9. It is also
contemplated that in the third embodiment, three triple-
wall bridges will be employed in the central region in order
to acilitate cutting of the lid into two halves wherever
that is desired, while still retaining effective reinforce-
ment for the two panels of the lid~
As in the first and second embodiments, in the
embodiment of Figures 13 to 16, the corrugations of ~he
bridges extend vertically and, thereby, in combination with
the transverse and longitudinal extension of the corruga-
tions in the layers 34 and 35, provide the desired three-
way reinforcement achieved as a result of the tbree-way
extension of corrugations in the three principal components
of the lid. In all cases, all of these components are
adhesively bonded to each other and the resultant structure
has great strength when considered in relation to the quan-
~ tity and weight of materials employed.
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