TRANSVERSE VENTILATION OF SEWERS
Year: 1886

page_text: JAMES GILLIS BROWN, Civil Engineer, 2 Lindsay Road Sunderland, do hereby
declare the nature of my invention for TRANSVERSE VENTILATION OF SEWERS
to be as follows:-
By the introduction of transverse currents of fresh air at certain points into
Sewers a constant action is kept up and a stream of fresh air is passed across the
flow of Sewer inducing a regular emission of Sewer Gas or foul air by combining
with the stream of fresh air passing across, at right angles: which is done by
inserting into main Sewer a specially made double junction pipe or cover of a
V shape the area of the space above sewer to be increased by the areas of inlet &
outlet pipes of the ordinary shape & material carried up and fit with bends until
near surface when cast iron or other air shafts of unequal heights are to be
provided or grates in surface (placed where least liable to be choked with dirt) all
joints of pipes &c. are required to be air tight.

page_text: Transverse ventilation OI Sewers.
JAMES GILLIS BROWN Civil Engineer 2 Lindsay Road Sunderland do hereby
declare the nature of my invention for TRANSVERSE VENTILATION OF SEWERS, and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
By the introduction of transverse currents of fresh air, at certain points, into
sewers; a constant action is kept up and a stream of fresh air is passed across the
flow of sewer, inducing a regular emission of sewer gas or foul air passing across
at right angles-which is done by inserting into main pipe sewer a specially
made double junction pipe having a V shape; or by inserting Junction Blocks
into Brick Culvert Main Sewer with the addition of Key-blocks for adapting the 1
same to Brick Culverts of any section-The internal area of the same to be
increased above the area of Sewer to be ventilated by the addition of the area of
pipes for air currents.
The pipes forming air channels underneath the surface of ground to be of
ordinary shape and material, carried up with bends, until near the surface, when
they are to be connected to Fire-clay or other junction blocks in walls of yards or
other buildings adjoining back streets on which are to be built air shafts formed
by air shaft half blocks, for building in, flush with the surfaces of yard or other
walls having terminal Fire clay tops, of unequal heights, fixed on top of shafts.
Cast Iron or other pipes or any other description of shaft of unequal heights
can be provided answering the same purpose; care being taken to make all joints
from the sewer to the inlet and outlet vents, perfectly air tight by using Portland
cemont & sand mortar or any other means for securing the object in view.
REFERENCE TO PLAN.
1. Double junction air pipe, for insertion into pipe Main Sewer, at points suitable
for ventilation.
2. Junction Block, for insertion into Brick culvert main Sewer at points suitable
for ventilation.
3. Junction Block for D° D° applied to Culverts of any section by the addition
of key blocks to connect Junction blocks.
4. Air Shaft half blocks for building in flush with surfaces of yard walls.
5. Air Shaft junction block for bottom of Shaft and connection with Sewer.
6. Inlet and outlet Tops for yard walls'; (9 inches thick.)
7. Section of back street, shewing the transverse ventilation of Sewers; all
surface grids dispensed with.
A. Outlet current at Sewer.
B. Inlet current at Sewer.
C. Key-blocks on arch of Culvert to connect Junction blocks.
D. Wall-block, with junction for air currents.
E. Air-current Shafts in yard walls.
T Talat and outlet ha
11

page_text: 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. By my design for Transverse Ventilation of Sewers the introduction of a
constant stream of fresh air and establishing a regular current of air passing across
the flow of a sewer by cutting through the sewer gas or foul air and combining
with and emitting the same through the outlet vent is a simple, cheap and effectual
method for Sewer ventilation.
2. By my design for Transverse Ventilation of Sewers I dispense with all
surface grids and provide a system of ventilation with inlet and outlet vents, placed
above the level of yard walls or other buildings adjoining Back Streets-thereby
removing a dangerous nuisance from street traffic and offensive smells from
footways.
3. By my design for Transverse Ventilation of Sewers the adoption of my
fresh air current system of transverse ventilation will prevent the accumulation of
-foul air in Sewers; thus rendering it impossible for gases to be engendered in
sewers thus ventilated.