An Improvement in the Ventilation of Sewers and Drains.
Year: 1892

page_text: Date of Application, 1st Jan, 1892
Auta od gi tuga
Complete Specification Left, 31st Oct 1892 Accepted. 31st Dec., 1892
PROVISIONAL SPECIFICATIONXI
An Improvement in the Ventilation of Sewers and Drains.
JEFFREY LEE BENNETT 109 Taunton Road Lee S.E. do hereby declare the
nature of this invention to be as follows:
The utilization of sewage, drainage or water in manholes or other parts of sewers
or drains for the purpose of working fans or air propellers.
Dated this 31st day of December 1891.
JEFFREY LEE BENNETT.
COMPLETE SPECIFICATION.
An Improvement in the Ventilation of Sewers and Drains.
JEFFREY LEE BENNETT 109 Taunton Road Lee London, S.E. do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement:-
For the improvement of the ventilation of sewers and drains by the introduction
and circulation of atmospheric air at the manholes or at other parts of such sewers
and drains (C) by placing at such positions water wheels or turbines (A) formed
of iron, zinc wood or other suitable material of various diameter together with air
propellers or fans (B) (Ba) of approved pattern and material. The water wheels
or turbines to be fixed so as to receive the discharge of sewage drainage or water
for the purpose of revolving the same and working the air propellers and fans
which are to be attached to the spindles or axles (D) of such water wheels or
turbines, or worked by means of friction-gearing (E) or by driving wheels (F) of
sufficient diameter fixed on the spindles or axles as before mentioned.
The driving wheels to be formed so as to drive (by means of chains or ropes or
other suitable driving material (G) pulley pieces (H) attached to the air propellers
or fans, such pulley pieces to be similarly formed as driving wheels.
The air propellers to be fixed in air tight shafts (I) for the purpose of drawing
down the atmospheric air (I*) into the manholes sewers or drains.
The inlets (J) of the air shafts being near the surface of the road or under the
open gratings of the manhole covers or at any other suitable position in or above
the manholes.
If the description of fan as shewn in sketch (B) is used such fan may be fixed
in a manhole or sewer without an air tight chamber or shaft.
For the purpose of giving freer vent and to assist the air propellers or fans and
also for the purpose of circulating the air in the sewers and drains (J*) air shafts
chambers or hollow spaces (K) to be formed in the brick or concrete work of the
manholes sewers or drains or to be constructed of pipes of suitable material.
The inlets (L) of such shafts to be at any suitable position in the manholes or
sewers and the outlets (M) (which are to be of larger area than the inlets) to be at
or above the road surface level or in the manholes or adjoining the same.
The air chambers or shafts to be fitted with slides or blowers (N) so as to regulate
the air currents in the same.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
An improvement in the ventilation of sewers and drains by the introduction and
circulation of air in the same by the means described.
Dated this 31st day of October 1892.
JEFFREY LEE BENNETT,
109, Taunton Road, Lee, London, S.E.