IMPROVEMENTS IN APPARATUS FOR VENTILATING AND CLEARING ALL CLOSE OR CONFINED PLACES OF GAS, SMOKE, STEAM, OR FOUL AIR, OR NOXIOUS VAPORS Of ANY KIND."
Year: 1881

page_text: LETTERS PATENT to William Teague, of the Parish of Illogan, in the County
of Cornwall, Mine Manager, for an Invention of "IMPROVEMENTS IN
APPARATUS FOR VENTILATING AND CLEARING ALL CLOSE OR CONFINED
PLACES OF GAS, SMOKE, STEAM, OR FOUL AIR, OR NOXIOUS VAPORS Of
ANY KIND."
PROVISIONAL SPECIFICATION left by the said William Teague at the Office
of the Commissioners of Patents on the 8th November 1881.
WILLIAM TEAGUE, of the Parish of Illogan, in the County of Cornwall, Mine
Manager. "IMPROVEMENTS IN APPARATUS FOR VENTILATING AND CLEARING ALL
CLOSE OR CONFINED PLACES OF GAS, SMOKE, STEAM, OR FOUL AIR, OR NOXIOUS
VAPORS OF ANY KIND."
The apparatus is for causing draughts or currents of air by exhaustion, and
among other forms is made and consists of two pipes of the same or varying
diameters and sizes, which communicate one with the other during part of their
lengths. The longer and larger pipe has usually a bell or funnel shaped mouth at
one end, and is open at the opposite end. The smaller pipe is usually curved or
bent and partially closed at one end, whilst the opposite end is open. In the
communication between the two pipes are placed plates of metal called "ports."
The funnel shaped mouth of the pipe is placed in the position from which it is
desired to draw the smoke, gas, or vapor; a blast of compressed air is then forced
thro' the smaller end of the short or "force" pipe. The passage of this air through
the "force" pipe causes a partial vacuum, which is supplied with air thro' the
ports from the large pipe, and a draught is thus created, which by force of the
rush of air is communicated to the larger or exhaust pipe, and the substance to be
removed entering the funnel shaped mouth is driven out at the opposite extremity
of the exhaust pipe. In the plan herewith Fig. 1 is a longitudinal section of
the pipes when connected, shewing A, A, inlet for compressed air; 1, 2, 3, 4, 5, 6,

page_text: 7, 8, 9, 10, 11, 12, are the "ports;" B, B, the bell or funnel shaped mouth. Fig. 2
is a section of same; Fig. is side view of same.
The apparatus is also made by introducing into a pipe with a funnel shaped
mouth, either at the end or at some point near thereto, a small pipe for the con-
veyance of compressed air. The smaller pipe after the entrance into the large pipe
is subdivided into two or more jets (generally three), and the blast of air produces
a draught in the same manner as in the before described apparatus. For chimney
pots or places where air may be collected by means of a funnel, a funnel is supplied
to one side of a pot fixed on a pivot, and balanced on the side opposite the funnel
by a fan, as shewn in Fig. 6. Fig. 4 is a section, and Fig. 5 an end view of the
single pipe exhaust ventilating apparatus.
The apparatus is made of metal, but may be of any material.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said William Teague in the Great Seal Patent Office on the 3rd May
1882.
WILLIAM TEAGUE, of Tincroft, in the Parish of Illogan, in the County of Cornwall,
Engineer. "VENTILATING MINES AND ALL OTHER CLOSE AND CONFINED OR
OTHER PLACES WHERE OR IN WHICH HOT OR IMPURE AIR, OR GAS, OR STEAM,
OR SMOKE, OR NOXIOUS OR OFFENSIVE VAPOR, OR DUST OF ANY KIND
COLLECTS."
The apparatus is to be used for ventilating by the process of exhaustion or
forming a partial vacuum in closed and confined places, from which it is difficult to
clear away any accumulation of foul air, gas, steam, smoke, dust, grain, or anything
of a like nature, and is especially calculated to remove fumes and smoke and noxious
vapors from mines and tunnels.
The apparatus is made of several forms. That shewn in Figure 1 consists of two
pipes of the same or varying diameters and sizes and lengths, communicating one
with the other throughout part of their length. The one, and usually the longer
and larger pipe, has a bell or funnel shaped mouth at the one end and is open at the
opposite end.
The other smaller pipe is partially closed at one end, whilst the other is open.
In the communication between the pipes are placed shades or ports, called
ventilating ports. The pipe with the bell or funnel shaped mouth is to be placed
in a convenient position with the funnel communicating with the smoke or other
substance for removal. A blast of compressed air is then sent through the smaller
end of the small pipe, which is called the "force pipe." The passage of this air
through the force pipe attracts through the ports or shades the air in the exhaust
pipe, which being rapidly drawn away causes an exhaust or partial vacuum; the
rush of atmosphere charged with vapor to be removed constantly seeking to fill
this exhaust, is caught and rapidly driven out at the opposite end to which it
entered.
The draught or exhaust is continuous so long as the apparatus is supplied with
compressed air, and the ventilator can be used as long as required.
The accompanying plan, Figure 1, and explanations shew the mode of working.
The apparatus is also made to consist of a single exhaust pipe open at both ends,
into which, at some part of the length and circumference, a smaller pipe for carriage
of compressed air is introduced.
The pipe called the compressed air pipe, which is the smaller pipe, is bent in &
towards the direction in which it is desirable that the compressed air should be
carried, and it is furnished at the end with two or more (according to size) jets
for dividing the current of compressed air, and thereby equalizing the exhaust
action of the draught or current created by the passage of air through the exhaust
pipe. This apparatus is shewn and explained in Figure 2. Another form of
making the apparatus is to make concentric pipes around the exhaust pipe, and
over and around each other, as shewn in Figure 3.
This arrangement is adapted also to the use of steam in the place of compressed
air, and creates draught in the encircling or concentering pipes as well as in the
main exhaust pipe.
Figures 4, 5, 6, and 7, and 8 shew the application of compressed air to the
ventilating of chimneys by any means of chimney pots, and are self compressing.
The air is caught by the mouth of the funnel, and the pressure of the atmosphere
forces it into the smaller part thereof, thereby compressing same and making a strong
current or draught of compressed air.

page_text: This current or draught acts in manner hereinbefore set out and effectually clears
the smoke.
The apparatus is made of metal or wood, or any easily wrought material.
I claim therefore as my improvement in ventilating apparatus, the causing
draught or exhaust by means of a current of compressed air carried into a larger
pipe or cylinder, and the drawing and propelling of smoke and noxious fumes by
means of the combinations of apparatus berein before set out, together with any
modifications thereof.
In witness whereof, the said William Teague, hath hereunto affixed my
hand and seal, the Sixth day of February, One thousand eight hundred and
Signed, sealed, and delivered by the
above named William Teague in
the presence of
GEO. J. BRAY,
Solr.,
Redruth.
WILLIAM TEAGUE, JR. (L.S.)

page_text: I is receiving and compressing pipe
B. Exhaust pipe
C is the tip of pipe leading out of space
to the Ventilator
This is an adaptation of Fuy Sambed
for Carriages or bodies moving in ene
direchen against it draught.