Todays patent is Schott’s only solo patent.
He was a coinventor on another LTA patent assigned to
Goodyear, and on an “inflatable floating island” assigned
to the Navy.
“Heretofore, it has been the standard practice to secure the
control car to an airship envelope by a plurality of sets of cables.
One set of cables extends between the control car and the outside
of the under portion of the envelope. A second set of cables
extend between catenaries in the inside of the envelope and the
control car, each cable being adjustable as to length by means
of a turnbuckle. In order to give the optimum shape to the envelope,
the load of the control car must be properly distributed between the
several sets of cables, and in the past this has necessitated very
considerable adjustment of individual turnbuckles keeping in
mind the advisability of substantially uniform loading of the
catenary curtains. Moreover, as the envelope stretches and distorts
in use, frequent and annoying readjustment of the turnbuckles has
been necessary to reduce excessively high tensions in the end
suspenders that resulted therefrom.
It is the general object of the invention to avoid and overcome
the foregoing and other difficulties of the prior art by the provision
of improved, relatively simple, easily applied and adjusted means
for securing a car or other similar type of structure on the underside
of a non-rigid airship, and characterized by ease and rapidity of
manual adjustment and features of inherently correct longitudinal
load distribution in spite of envelope fabric stretch and/or a change
of shape of the envelope.
NOTE: Schott's patent was filed on August 6, 1959. It was issued
two years later; a month after Goodyear’s last client terminated its
The invention specifies a car suspended beneath the gas filled
envelope supported by cables from two catenary curtains and by
cables connected directly to the envelope.
It does not discuss or claim any method or means of determining
the share of the car’s weight which is supported by any individual
Although not discussed, presumably adjustments are performed
while the ship is docked, or moored under benign conditions.
The patent is cited by three modern patents:
3,533,578 Lighter than air craft non-rigid pressure ships
and tethered glider or plane, heavier than air,
6,290,176 Airship gondola suspension system and method
of making same, and
6,293,493 Pressure stabilized gasbag for a partially