Alexandria gazette & daily advertiser. [volume] (Alexandria [Va.]) 1817-1822, 1819-07-24


useful member.
| Description of the Patent Hydraulic Ore
now exhibiting al PIG Broadway. OPP.
posite ST. Pau's Church, New-York.
This new and smguIsrIy orIgina inven-
lion exhibits the motion of the Earth round
the Sun, and of the Moon round the Earth
and the Sun. The axis OF the Earth pre-
serves uniform parable obIiquily to the
eccliptic tor plane OF its motion,) and the
plane Of the Moons course has lis due in
ciinalion to that OF the Earth. Inc c, uses
of the seasons are shown by the first. and
of eclipsts by the second. The movements
take place with the most harmonious regu.
lsriIy. and the display is of a nature TO cap
tivaIe every one duly sensible to the order,
beauty, and magnlicence displayed in the
great creation.
But not the least interesting part Of this
invention consists IN the ''modus operands'
or manner of initiating the natural evolu-
tons OF the spheres, in the total absence OF
wheel-work. A circular reservoir, 5 Ieet
diameter, and inches deep, is flied with
water in the centre, smalt shaft supports
the sun, Ia bail nine inches diameter. TO-
wards the circumference, but connected by
an arbour in the centre, floats a circular
vessel sixteen inches diameter and fOu.
inches deep, with double rIm--the inner
circle being filled with water admitted from
beneath through small apertures provided
near the centre for that purpose; above
the centre of this vessel the Earth, Ia ball
four inches diam, ter, Is raised about TWO
feet, aul placed with il axis inclined in
an angle of 60 deg. 80 min. Upon the
water received into the inner rlm hoats
second vessel, connected also Ivy an arbor
to the centre, from the circumference OF
which the Moon a ball one inch diru.eter)
is erected. The bottom of this vessel is
pierced, and small siphon, or crane IS flx-
ed in the aperture, while its longer leg,
closed at the bottom, but having lateral
aperture, depends in the circular Vacuous
zone between the double rims of the inst
described floating vessel s. discharges wa
ter lateraiy therein, While in consequence
, OF the vacated lateral aquatic pressure with
in the siphon, resulting from thlsvery aper-
ture the vessel sustaining the Moon travels
in direction contrary to that OF the d.
minution and the Moon is borne rapidly
round the Earth, The obliquy OF the or
bit is produced by eleva,Ing the lunar
sphere upon the summit OF small si'dlns
rod, iron the lower extremity OF wh'ch
thread is extended to a small crank IN
the central shaft, supporting the Earth.
This ecceniricity produces an alternate
elevation and depression at each re'oiu-
ton, and thus, in combination win the
horizontal circle, the proper orb'cuar IN
clination is constantly preserved. The
parallelism of the Earh's axis IS maintain
ed by carrying this sharf through the iaFg-
er floating vessel, and afixpg pulley 10
its lower extremity, while small Irvine,
acting as band, is carried round II, and
an equal, bu, fixed, pulley attached to the
centre OF the reservoir. The Earth is car
ried through its orbit by attaching second
sipbon, with lateral aperture, to The
larger floating vessel this sIphon carries
off the W alter emitted into the circular Zone
between the rims, by the siphon FIST des-
cribed, and the vacated pressure conse-
,.ant ,po, a, iator,I dis rha rye releases an