New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1857-03-24
A NEW SYSTEM OF VENTILATION.
cors.noudrpce of The n. Z. Tribsne

Paris Feb. 49, 1857
The subject Of ventlatipg private dwellings and
public buildings has always excited much interest.
The United States Congress has spent large Sums in
various experiments for ventilatng the halls of the
Capitol and not less has been spent by administrations
of various hosp and other benevolent institutions,
in order TO ASCERTAIN which Of the two known sysems
ventilation by suction. ventilation by injection
is the best DIR. Van ii, cke Of Brussels (Belgium)
invented a new mode Of ventilation which has
been .xperimented upon in one Of the hospitals in
Paris h, a commission of scientific gentlemen. Mr.
Cr,ssi one of the Commissioners lstey published the
repor entitled: Etade dr sySteme dc chaItage ct dc
osnt,lotios ftaJh par Mr. e doctear Van Hecke dams
Fun des partitions de ikospice BeaWon, from which
the foo wr lie condensed extract: Van Hecke pro-
Suoes yeStilatioA by m. chsncal means. His system
is established one OF the wings Of the hospital, con-
tanning sixty beds. A steam engine Of only half
horsepower sets the ventia,or, Of heicoida FORM In
motion The vent4tor consists of two paddles fitted
10 two rods perpendicular 10 the axis Of tsion, WITH
m inclination from so 10 GO degrees. This ventilator
has this peculiarly that toe inclination of the paddles
IL not constant but varies according to the rapidly OF
the rotary notion One OF these yentilsors Is placed
in the courtyard where one end OF the hue widely
opens IN the air. and the other 10 the rooms to be ven
lsted When the apparatus is set In motion, 1t sucks
in pure sir from yard carries it into the rooms
In the Summer the air srt6ciay cooled by passing
over mosteIed CLOTH in Winter the cold air, before
coming into the ia passed through flues OF
stove where it lie ciently warmed, aud afterward
is carried vat Of water in order 10 impregnate
ii with suitable quantity Of moisture. The air thu,
warmed has no Offensive smell, and never produces
the lungs that Injurious dyness caused b, heat arising
from common stoves. Another ven,ator is placed at
the upper pat Of the evscuatcg chimney. TINS apps
rstus carries of the viisted air of the rooms, and
drives Il into the air above the roof Of the bading.
With this system, ventilation by injection, or venta-
ton BY suction, can be produced and changed from
to the other, BY merely shifting the belt. This
last popularity Of the apparatus afforded the means Of
ascertssng the comparative value of the two above
mentioned methods, uied in the same locslity and
unde, similar conditions We shall state the conclu
sioDs Mr. Gfsssi bss drawn from comparing the two
systems. The sman bafnorse-power steam-engine
kept In thorough state OF VENT alton three rooms
superpesd oon>,opg sixt, patients, and visitors old
not there meet with that scty oda which is felt in all
hospitals where the rooms not ventilated, notwth'
standing De care and C can ness which ere scrupu-
tous'y observed 10 those places II hiss been ascer-
tanned al the Larboissere Hospital, that 10 room.
ssouisted by suction tho volume Of air coming 10
a'0eso ire wirSow joints pcsrly equl to that enter
ing tiough the aoves; 90 that, out Of a vo,u 90 %
oSa'y cuoe tassen II s carried of throsgb the svac.