Symbole du gouvernement du Canada


Numéro de document de brevet: 1215207

(54) Titre anglais: CABLING SYSTEM FOR AN INFLATABLE BUILDING

(54) Titre français: SYSTEME DE CABLAGE POUR BATIMENT GONFLABLE


Revendications:

Nota : Les revendications sont présentées dans la langue officielle dans laquelle elles ont été soumises.


The embodiments of the invention in which an exclusive
property or privilege is claimed are defined as follows:
1. A cabling system for reinforcement of an in-
flatable building structure comprising a latticework of
crisscrossed cables arranged to extend over the entire
building with substantially all of the cables which meet
a lower peripheral edge of the structure being arranged
diagonally at a uniform angle of substantially less than
ninety degrees to that edge and with substantially all of
said cables which meet a lower peripheral edge being paired
with and meeting an opposite diagonally extending cable
at said peripheral edge, the members of each of said pairs
of diagonally opposite extending cables being formed from
one continuous cable extending down on one diagonal to the
edge and turning back up on the other diagonal, anchoring
means to hold said continuous cable at the turn between
diagonals, said anchoring means comprising a sheave ar-
ranged to permit an adjustment in length between the as-
sociated diagonal cables wherein one diagonal cable be-
comes longer and the other diagonal cable becomes shorter.


2. A system as claimed in claim 1 wherein said
anchoring means sheave is freely rotatable.


3. A system as claimed in claim 2 wherein said
rotatable sheave is positioned and arranged to rotate upon
an axis substantially perpendicular to a plane defined by
the latticework of cables in the vicinity of the sheave
when the inflatable building structure is inflated.


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4. A system as claimed in claim 1, or claim 2, or
claim 3, wherein said uniform angle of substantially less
than ninety degrees is in the neighborhood of sixty degrees.


5. A system as claimed in claim 1 wherein the min-
imum diameter of said sheave is in the neighborhood of at
least nine times the diameter of the cable.


6. A system as claimed in claim 3 wherein said
anchoring means further comprises a support bracket for
said sheave consisting of an L-section channel arranged
to be anchored to a base structure for the inflatable
building with said sheave being attached to an upstanding
leg of said L-channel and with the other side of said L-
channel being arranged to be attached to the building base
structure.


7. A system as claimed in claim 6 wherein said
sheave is mounted by means of an axle upon the side of
the upstanding leg of said L-section support bracket at
which the base leg of said support bracket is attached,
and wherein there is provided a locking plate mounted
upon said sheave axle at the outside of said sheave and
having a slotted center opening to permit the raising and
lowering of said locking plate to permit the insertion of
the cable onto the sheave when the locking plate is raised
and to lock the cable upon the sheave when the locking
plate is lowered, the locking plate being arranged to be


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(Claim 7 continued)
lowered into near proximity to said base leg of said sheave
bracket, said sheave axle comprising a threaded bold fas-
tener which is operable to tighten said locking plate in
the locked position.


8. A system as claimed in claim 1 wherein said
latticework of crisscrossed cables is constructed in sec-
tions with substantially all cable ends terminating at
cable connector clamps at the adjoining edges of adjacent
sections.


9. A system as claimed in claim 8 wherein the
cable lattice sections for covering the ends of the in-
flatable building structure are formed with cables which
are not parallel with the cables in the other sections.


10. A system as claimed in claim 1 or in claim 2
or in claim 3 wherein all intersecting cables are secured
together at all intersections.



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