The Pacific commercial advertiser. [volume] (Honolulu, Hawaiian Islands) 1885-1921, 1909-06-27

the roof of the body centrally and at
right angles is substantial wooden
and steel reinforced pair of trusses.
At the center line of the car they are
spaced about feet apart, but at their
tapered extremities they converge and
form bed for the bearings of the
verticle shaft upon which the gyrop-
tiers rotate. This shaft is hinged to the
main truss bearing in one direction, so
as to permit the former to swing
through limited travel in line paral-
lei with the car, in order to give the
necessary inclination to the gyropters.
The gyropters which comprise the
most important feature of the, machine
are of substantial construction. The
vertical shaft upon which they revolve
is of steel, and the lower bearing is
braced to the hub by diagonal spokes
or ribs, and is held in a rigid vertical
position by numerous steel tube stay
rods, firmly anchored to the body of
the car. The lifters are built up Of
series of blades made of wood. extend
ing from the hub of the litter to the
periphery and additionally strengthen
ed and supported by annular rings of
great thickness and weight, slotted in
order to receive the blades. When com
pleted the gyropters resemble enormous
expanded umbrellas with the wooden
ribs corresponding to aeroplanes dis
posed like feathers. There are no
blades to each litter, and they are
spaced at an angle varying from II
to Is degrees inclination, with a pitch
of 81 feet. The filters are each 81
feet s inches in diameter, and they are
spaced 40 feet apart from center to
center. The blades are each s feet in
length, and present total cutting edge
of 1860 feet.
The beak follows the design of that
of the bird, having a sharp point to
cut through the air, and to turn the
air thus forced aside beneath the gyrop-
ters. 1t can be moved to secure right
or left deviation. The tail is also of
novel design and works automatically.
1t follows the swallow tail of the bird
in shape, and is made in three sections.
The central part is hinged to the body,
the side sections to the middle section.
| By this arrangement the side pieces
| can be deviated either above or below
| the central section. This tail controls
the angle to the horizontal. 1t can be
set to maintain the forward motion at
any angle; or can be altered by the
manipulation of hand wheel. The tail
also serves to govern partially the lat
| eral equilibrium of the whole machine,
but it must be pointed out that the
| stability of the structure is principally
maintained by means of the gyroscopic
action of the rotary wing filters.
| The propelling installation consists
of two small steam engines, each de-
veloping so horsepower. In order to
have the same lifting power impaired
to each litter, so as to secure perfect
balance of power transmission, the two
engines are contrlled by a novel auto
matte governor acting on the throttles.
The engines will be bedded near the
| floor of the body, so that the center of
gravity may be kept very low, thus
rendering more remote the possibility
Of the machine overturning. The drive
will be transmitted to the rotary lifters
by means of helical gearing or prefer
ably betting. The filters are designed
for speed of sixty to one hundred
revolutions per minute, and this gives
! the gyropters a peripheral speed rang