IMPROVEMENTS IN THE MEANS OF AND APPARATUS FOR VENTILATING CARRIAGES
Year: 1877

page_text: PROVISIONAL SPECIFICATION left by Henry Carter and Charles Warren at
the Office of the Commissioners of Patents on the 12th June 1877.
HENRY CARTER and CHARLES WARREN, both of Ipswich, in the County of
Suffolk. " IMPROVEMENTS IN THE MEANS OF AND APPARATUS FOR VENTILATING
CARRIAGES."
The object of this Invention is to ventilate carriages to be used in warm climates,
and to produce therein a pleasant current of cool and refreshing air when desired.
To this end a blowing or ventilating apparatus is placed under one of the scats, or
in some other convenient part of the carriage, and is worked by means of gearing
actuated by one or more of the running wheels.
In carrying out our Invention we use one or more collapsible chambers con-
structed upon the principle of ordinary bellows, which are worked by means of
vibrating levers actuated by cams fixed on the naves or bosses of the running
wheels. The vibrating levers are connected to the moveable parts of the bellows or
collapsible chambers by means of cords or rods, which are controlled by cords
passing under guido pullies, and extending up to any convenient part of the inside
of the carriage, so that by shortening the cord the amount of motion of the
collapsible chambers or bellows, and consequently the volume of air delivered by
the apparatus may be regulated at will by the occupants of the carriage; or the
action of the apparatus, may be stopped entirely if required. When the apparatus
is at work the collapsible chambers or bellows will force air under pressure into a
close chamber provided at top with a safety valve, and the air will pass from the
close chamber into a coil of metal pipe enclosed in a chamber, in which it is
surrounded with ice for the purpose of cooling the air as it passes through the
pipe.
The air may also be made to carry in with it any scent or perfume through
which it may be made to pass. The outer end of the coiled pipe is connected with
an air conducting pipe which passes under the flooring of the carriage, and up to
near the roof or upper part, where it terminates in a trumpet mouth provided with
a perforated cover, whereby the issuing volume of air is divided into thin streams or
fine jets which are discharged in a horizontal direction opposite the faces of the
Occupants of the carriage,

page_text: We-do not confine ourselves_to_the_precise form of blowing apparatus employed,
as other constructions of pressure blowers may be employed with advantage, but
the one described will be found cheap in construction and not liable to get out of
order.
We would also remark that our Invention (subject to certain self evident modifi-
cations) may be adapted to railroad carriages, either for ventilating purposes, or
for keeping out the dust from the interior of the carriages in dusty and windy
weather.
It will be obvious that, as in the case of railroad carriages, the axletrees rotate
with the wheels a somewhat different mode of gearing to that above described
must be adopted; for instance, the moving parts of the bellows may be actuated
direct from the axletree by means of an excentric and strap connected by a rod to
one end of a bell-crank lever, the other end of which is connected to the bellows.
It will of course be understood that if the pressure of the air in the close chamber
becomes too great, the safety valve on the top thereof will yield to the undue
pressure, and will allow the air to escape from the close chamber without passing
through the other parts of the apparatus to the delivery opening.