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Патент USA US2406164

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Mg" 2°’ 1946- I
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E-Rklsz'
1
2,406,164“ v. -
KNOCK-DOWN GLOBULAR SHELL
F'iled Sept. 1, 1944
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2 Sheets-Sheet 2
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Patentecl Aug. 20, 1946
2,406,164 .
UNITED STATES PATENT OFFICE“
KNOCKDOWN GLOBULAR SHELL
Erwin Raisz, Cambridge, Mass, assignor to Global’
Press, Inc., New York, N. Y., a corporation of,
New York
Application September 1, 1944, Serial No. 552,251.
7 Claims.
(Cl. 35—46)
1
as the Temperate Zone segments; segments 12)
The present invention is concerned with knock
down globe-like structures particularly of the type
and I22 as the Frigid Zone segments. This ter
useful for geographical or astronomical globes.
It is among the objects of the invention'to pro~
vide ‘a globe-like hollow structure, built from a
series of absolutely ?at blanks of sheet material
and without resort to implements, or to fastening
appliances such as nails, rivets, staples or to ad
hesive, but which may be assembled by hand, by
direct interlock of the constituent blanks 'to each
other and which in assembled relation is suffi
ciently rugged for practical purposes and not apt
to come apart even under fairly rough handling.
The accompanying drawings in which is shown
minology is used in the speci?cation and certain
of the claims ‘merely for convenience, but it will
be understood that the circles of contact-as at b
between consecutive segments are not necessarily
along those parallels of latitude which de?ne the
demarcation between the respective geographical
zones above identi?ed.
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~In the preferred embodiment the globe-like
structure is made up entirely of strips of. ?exible
sheet material. While inicertain.applications, it
may be made of sheet metal, it is preferred for
most purposes to make it of fairly stiff-paper,
preferably of flexible paper board, which‘ while
limber has sufficient stiffness. ‘In a preferred
eral features of the invention,
Fig. l is a side elevation of the globe, accord
embodiment shown the Torrid Zone segment in is
a generally rectangular band of length substan
ing to the present invention,
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Fig. 2 is a fragmentary view on a larger scale of
tially equal to the equatorial periphery of the
a portion of the globe as viewed from the interior. 20 globe, and, of width, illustratively shown in' the
Figs, 3 and 4 are fragmentary sectional views
vdrawings as of 30 degrees, that is, of one-twelfth
taken on line 3-3 and 4-4 respectively of Fig. 2,
The strips making up the Temperate Zone
Fig. 5 is a plan view of a sheet, showing the
bands, 1. e., the strips I l’ and I I2, constitute, each
entire set of strips making up the globe-like
a sector of an annulus as shown. - Each is illus
tratively of a width of 30 degrees, corresponding
‘structure.
Referring now to the drawings, the globe-like
tothe width of band It and is struck on a radius
structure, as best shown in Fig. 1 is made up of
readily determined, so that when ‘closed into the
a sequence of segmental bands I0, I l’,‘l l2 and l2’,
frusto-conicalband form, it will fit into the geo
l22 the lateral edges of which are in substantially 30 metrically spherical’ enveloping form suggested in
abutting relationship as at b, the circles of abut
Fig.» 1. The larger outer or convex edge l5 of
ment lying in the enveloping geometrical globe in
each Temperate Zone segment strips ll’ and! l2
dicated in dot and dash lines and to which the
is, of course, equal to the length of the‘ Torrid
globe-like structure described is an approxima
Zone strip H).
g.
one of various possible embodiments of the sev
its length.
and
tion.
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As shown, each of the segments is of frusto
conical form, the smaller of the segments l 2 being
35
Similarly each strip l2’ and I22 making up a
Frigid Zone segment is a sector of an annulus,
struck on much smaller radius, and extending for
much more nearly the complete periphery than do
apex angle than the segments H of larger di
sectors l l’ and H2. Each of sectors I2’ and I2,2
ameter. The median segment I0 is preferably a 40 when closed forms a frusto-conical Frigid Zone
cylindrical band as shown, that is, a frusto-conical
segment, with the larger base formed by. convex
band of zero apex angle. At one, or if desired, at
edge It, equal in length and periphery to the
each of the polar regions a closure cap it is ‘affixed
smaller or concave base ll of the Temperate Zone
at its edge to the smaller periphery of the ex
segment; The polar cap. 13 is of diameter or pe
on a more shallow cone, that is, one with a larger
treme frusto-conical segment 12’.
While the globe-like structure may be made of
a larger number of narrower segments, so ‘as to
approximate even more closely the conformation
of a perfect sphere, it is su?icient for practical
purposes to conform the globe of the five seg
ments shown in Fig. 5, with one or two of the
end caps I3.
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In the geographical application shown, the seg
riphery to ?t the aperture'de?ned by the smaller
or concave base iii of the F‘rigid Zone segment 12'.
While the ends of each strip may be attached
together by any suitable means, to form the cor
responding cylindrical or frusto-conical segment,
as the case may be, it is preferable to provide
a unitary dove-tail tongue 20 at one end of each
‘ of said strips and complementary extension.
tongues 2|’ and M2 at the opposite end; de?ning
the Torrid Zone segment; segments II' and H2 55 therebetween an undercut slot or gate 22 for ac:
ments may be identified as follows: segment I!) as
2,406,164
4
3
commodating the corresponding dove-tail tongue
shown in Figs. 1 and 2 into a permanent struc~
20.
ture, if desired.
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7 While the invention has its preferred applica
For connecting together the consecutive seg
ments, each segment strip is provided at each
bility to geographical globes or to astronomical
globes, it will'be understood that it is also useful
UK
side thereof with a sequence of lateral dove-tail
for other purposes, ,as for instance, for lamp
tongues 23 unitary with and in the plane of the
shades or ornamental displays.
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strip. Desirably, though not necessarily, each
7 As many changes could be made in the above
dove-tail t'onglue has a root ‘of width equal to 10
construction, and many ‘apparently widely dif- ,
degrees of longituda'an'd the roots of consecutive
tongues are spaced by interval‘of 10 degrees of 10 ferent embodiments of this invention could be
longitude as shown.
made without departing from the scope of the
The dove-tail tongues of
claims, it is intended that all matter contained
in the above description or shown in the accom
' consecutive segments are intermeshedv at them-
ner face of the globe-like structure as best shown
panying drawings shall be interpreted as illus
in’ Fig. 2. Thus, as, shown, the consecutive seg
ments will abut edgewise as at 24 and 25 and are‘
trative and not‘ in a limiting sense.
held in assembled relation by the-intermeshing
V dove-tail tongues.
claim as new and desire to secure by Letters
.~
Patent of the United States is:
1-. A' hollow, knock-downglobe-like structure
of sheet material, comprising a median hollow
band?anked at each of its sides by a sequence
The north polar disk shown likewise'has dove
tail tongues '23 thereabout, which intermesh with
.the corresponding dove-tail tongues .23 on the
, associated smaller base ['8 of the frigid zone seg
,
ment
l2’.
‘
Having thus described my invention, what I
of frustro-conical bands, said bands being re- '
It will be understood that the opening '
leasably interlocked in a self-sustaining struc
ture, ‘the junction lines between consecutive
. 21 at the South Pole could be used for mounting
the globe-like structure upon a pedestal or other
.'suitable' support, orif desired,it could be closed 25 bands lying substantially in the enveloping geo
metrical spherical surface.
'
v
by a southv polar plate, similar to the plate I3
2. A hollow, knock-down‘globe-like structure
of sheet material, comprising a medianhollow
It. will be understood that the various strips
band ?anked at each of its sides by a sequence
from which the globe is to be constructed may
all be imprinted with their appropriate map seg 30 of frustro-conical bands, said'bands being releas
merits: (not shown in Fig. 5), upon a single sheet , ably interlocked in a self-sustaining structure,
the vvjunction lines between consecutive bands
' 30 of paper‘ board, as shown in Fig. 5, from which
lying substantially in the enveloping geometrical
"the . several strips 10,: H’, H2, I2’, I722 and i3’
above
described.
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spherical surface, and a cap plate interlocked
‘ e may be cut out by scissors or, if desired, the sheet '
with the free edge of 1at least one of the extreme
may be impressed with‘ tear lines ‘as suggested
at 3!, to facilitate direct removal thereof from
the carrying sheet 30. For assembly, each strip
is formed’ into its ring by connecting the dove
tail tongue 29 at one end to the‘corres'ponding
frustro-conical bands.
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3. A hollow, knock-down globe-like structure,
composed of ?at strips of ?exible sheet material,
each forming an‘ approximation to a segment of
gate1 22* atthe other‘. The dove-tail tongues 23 40 a globe surface, the ends of each strip being
connected together to form the segment, the var
at the sides, of the strips are readily intermeshed
ious segments being in laterally abutting rela
at the'int'erior of the structure in the manner
tionship, the lines of abutment being on circles
above described, care being taken, of course, to
of the enveloping geometrical sphere, each strip
having lateral dove-tail tongues unitary there
with and' in the plane thereof, the dove-tail
bring the respective seg‘ment's'into proper register
peripherally for building up the'globe-like struc- '
tulr‘é'.
'
tongues of contiguous segments intcrmeshing at
The dove-tail tongues" 23 will not only look the
segments against direct separation’ and against
relative rotary displacement but will also main
the inner surface of the globe-like structure.
tain the contiguous edges of consecutive segments "
comprising a median cylindrical band ?anked‘, at
against relative tilting and. they assure‘ accurate
edge to edge alignment. Preferably the" strips
4. A hollow-knock-down globe-like structure
eachof its sides by a sequence of frusto-conical
7 are 'so imprinted that at least some of ‘the lateral
bands, consecutive bands being laterally in edge
to edge abutting relationship, the various bound
joints are staggered with respect to the others
ary lines of said bands extending as circles in the
as best shown in Fig. 2.
7
The structure is me- ‘vi Li'
chanically strong, since each segment, especially
those that’ are frusto-conical, withstands sub
stantial compressive strain and the correlation
of the segments results in a truss-like reinforce
ment along each diameter. The structure is suf
enveloping geometrical spherical surface,xeach of
said bands being composed of a ?at strip of flex
ible sheet material, relatively stiii ,thereacross,
each having lateral dove-tail tongues unitary
_ therewith and in the planethereof, said tongues
60
of the consecutive segments being intermeshed
ficiently rugged to permit relatively rough han
at the interior of the structure.
dling without injury thereto or coming apart.
It is understood of course that the edges of the
segments may, if desired, be made to extend
5. A' hollow, geographical knock-down globe
like structure, comprising an equatorial cylinder
band {and duplicate sets of frusto-conical bands
parallel to meridians, rather than to the equator,
forming segments abutting in substantially edge
if
desired.‘
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to edge relationship at opposite sides of. the cy
The term “knock-down” as applied to the
globe-like structure is intended to de?ne the rela
' lindrical band, av polar disk abutting the’ edge of '
tionship whereby the globe may be built up from
bands and the disk being of diameters such that
?at strips, as shown, and may be disassembled
into‘ flat strips for convenience of storage or ship
the abutting circular lines 'areall inscribed in
the surface of the enveloping geometrical sphere,
each of said segments and said disk having dove
ment. ' The term “knock-down” is not intended
' the extreme. frusto-conical band, the various
tail, tongues laterally protruding at one side '
to exclude the possibility however of stapling,
or otherwise securing‘the' parts formed as 75 thereof in the plane thereof andv in-termeshed
2,406,164
with those of the adjacent band at the inner
face of the structure.
6. A hollow, geographical knock-down globe,
composed of wholly ?at sheets of ?exible paper
board including a cylindrical Torrid Zone band,
a series of sectors of annuli, forming a pair of
frusto-conical Temperate Zone bands and a pair
of frusto-conical Frigid Zone bands, .the larger
base of each of the Temperate Zone bands being
7. A knock-down self-sustaining globe-like
structure comprising a plurality of initially flat
pieces of sheet material including a, rectangular
sheet, a plurality of sectors of annular sheets,
and a generally circular cap sheet, said rectangu;
lar sheet having means for securing the ends
thereof together to form a‘cylindrical shell, the
annular segment sheets having like means to
form frusto-conical shells, the larger base of the
equal in circumference to that of the Torrid Zone 10 largest shells being substantially equal in periphe
ery to that of the cylindrical shell and the larger
band and the larger base of each of the Frigid
base of the next largest segmental shells being
Zone bands being equal in circumference to that
substantially equal in periphery to the smaller
of the smaller base of the Temperate Zone bands,
the abutting demarcation lines between the re
base of the largest frusto-com'cal shells, the cap
spective bands comprising circles in the surface 15 disk being of periphery substantially equal to
of the enveloping geometrical sphere, and a polar
that of the smaller base of the smallest frusto
disk closing the smaller base of at least one of
conical shell, each segmental unit having dove
the Frigid Zone segments, each of said segments
tail tongues unitary therewith, protruding from
having unitary with the lateral edges thereof a
‘the lateral edges thereof and in the respective
sequence of dove-tail tongues, the tongues of 20 planes thereof, the dove-tail tongues of the con
each segment intermeshing at the inner face of
tiguous shells being interlocked in the interior of
the globe-like structure with the complementary
the structure.
tongues of the contiguous segment.
ERWIN RAISZ.
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