APPARATUS FOR VENTILATING TUNNELS, SUBWAYS AND SIMILAR PLACES
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
WILLIAM CLUTTERBUCK of 8 Chapel Street, Edgware Road in the County
of Middlesex, Gas Fitter do hereby declare the nature of my Invention for
APPARATUS FOR VENTILATING TUNNELS, SUBWAYS AND SIMILAR PLACES to be as
follows:
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2.
The Invention relates to apparatus..for ventilating tunnels, subways.and other
places. I use a catcher so arranged in the top or sides of the tunnel or other
place to be ventilated that it will catch or obstruct the air from passing beyond
such catcher, near to this catcher is an opening into a shaft or shafts with
moveable hinged lids, flaps, or ports opening outwards from the place to .be
ventilated and so balanced or counterpoised that the pressure of the air shall cause
the lids, flaps or ports to open outwards, and to close automatically upon such
pressure being removed and so prevent the return of the foul air into the tunnel
or other place.. In addition, to this automatic action I induce a current upwards
and outwards by means of a fan or wheel with blades so arrangedias to induce the
air to travel upwards and outwards through the shaft or shafts. The fan or wheel
or wheels may be moved or put into motion by any of the known appliances used
to put machinery in motion.

page_text: WILLIAM CLUTTERBUCK, of 8 Chapel Street Edgware Road in the County
of Middlesex Gas-fitter, do hereby declare, the nature of my Invention for
APPARATUS FOR VENTILATING TUNNELS SUBWAYS AND SIMILAR PLACES, and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
The Invention relates to apparatus for ventilating tunnels, subways and other
places. I use a catcher so arranged, in the top or sides of the tunnel or other place
to be ventilated that it will catch or obstruct the air from passing beyond such
catcher near to this catcher is an opening into a shaft or shafts with moveable
hinged lids, flaps or ports opening outwards from the place to be ventilated and so
balanced or counterpoised that the pressure of the air shall cause the lids, flaps, or
ports to open outwards, and to close automatically upon such pressure being
removed and so prevent the return of the foul air into the tunnel or other place.
In addition to this automatic action I induce a current upwards and outwards,
by means of a fan or wheel with blades so arranged as to induce the air to travel
upwards and outwards through the shaft or shafts. The fan or wheel or wheels
may be moved or put in motion by any of the known appliances used to put
machinery in motion.
The shaft or shafts may be so arranged as to be used singly or in pairs-or
otherwise at side of each other, or over one another at any suitable distance.
The catchers are so arranged that they shall catch or intercept the air from
whichever direction it may be coming.
The catcher may be parrallel with the ground or metals, or curved.
Where the catchers cannot be used at the top of a tunnel or other place they
may be used at the side or sides, or in any desired position.
The shafts may be of any shape horse-shoe, circular-oval, or oblong.
The flap or door or port-may-be-hinged, hung, or centered-in-any manner, but I
prefer to hinge it similar to the flap of a bellows. The flaps or doors may be
placed either horizontal perpendicular or at any suitable angle in the tube or
ventilating shaft.
E. are air shafts.
Fig. 1 is sectional elevation of tunnel-with catcher, doors and shaft.
Fig. 2-shews the catcher, curved with double shafts over.
Fig. 3. is section of shaft, wheel or fan and flaps.
Fig's. 4. 5. 6-are end and sectional views of catchers, shafts- & doors.
Fig. 7 is a perspective view of tunnel and shafts-with section of shafts and
flaps, doors or ports.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed, I declare that what
I claim is
1. The catcher or interceptor.
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page_text: 3. The means of exhausting the air-in conjunction with the catcher or
interceptor, and the hinged or counterpoised flap, door or port to prevent
the return of the air.
Dth I... of A1001