Improvements in Apparatus for Exhausting the Products of Combustion from the Locomotives of Underground Railways, and Preventing the Pollution of the Atmosphere in Railway Tunnels.
Year: 1891

page_text: Date of Application, 26th Feb., 1891
Complete Specification Left, 26th Nov., 1891-Accepted, 9th Jan., 1892
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Exhausting the Products of
Combustion from the Locomotives of Underground Railways,
and Preventing the Pollution of the Atmosphere in Railway
Tunnels.
I, CHRISTOPHER ANDERSON, of 1 Park Square, Leeds, in the County of
York, Barrister at Law, do hereby declare the nature of my said invention to
be as follows :-
My improvements relate to a certain invention for which Alice Anderson has
obtained Letters Patent, dated 26th July 1888, No. 10,851; and to certain
improvements therein for which I have filed an application for Letters Patent
dated 26th February 1891, No. 3486, and the object of my present invention is to
extend the scope and application of such inventions by adapting the same to
exhausting the products of combustion from main line locomotives, which are not
themselves fitted with the apparatus and invention aforesaid, but which have to
pass through very long tunnels or underground railways, when running through
traffic.
In carrying out my said improvements, I provide air trunks, having valves and
exhausting apparatus, as described in the Specifications referred to, and I also fit
pilot engines with the slider and connections in accordance with the original
invention, but, in addition thereto, I provide on the pilot engine a cap and tube, or
other suitable connection with the funnel of the main line locomotive, in such a
manner that the products of combustion from the main line engine pass away to the
air trunks, along with those of the pilot engine, through an exhaust box or
reservoir on the pilot engine tender, which I provide for breaking the blast of the
main line engine.
Or in case it is desired that the main line engine should do the entire work of
drawing its own train through a tunnel, I provide a slider and connections to the
air trunks, mounted under a suitable truck or carriage, and also an exhaust box and
connections to the top of the funnel of the main line engine, similar to those fitted
to the pilot engine as herein before mentioned.
Dated Oth 1001
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Exhausting the Products of
Combustion from the Locomotives of Underground Railways,
and Preventing the Pollution of the Atmosphere in Railway
Tunnels.
I, CHRISTOPHER ANDERSON, of 1 Park Square, Leeds, in the County of
York, Barrister at Law, do hereby declare the nature of my said invention and
in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement :-
My invention relates to certain arrangements whereby the products of com-
bustion, as they arrive in the smoke box, are diverted from their usual course
through the funnel, and carried through a communicating pipe to a channel in a
permanent way, formed to receive the same products of combustion, which are
then withdrawn through other flues external to the tunnel; as described in the

page_text: Specification of Letters Patent dated 26th July 1888, No. 10,851; and the object
of my present invention is to effect improvements in such apparatus, by adapting
the same to main line and other locomotive engines, which are not themselves fitted
with such apparatus, but which have to pass through very long tunnels or under-
ground railways, when running through traffic.
And in order that my said invention may be particularly described and ascer-
tained, reference is hereby made to the accompanying drawing.
In carrying out my invention 1 fit pilot engines in such a manner that they may
be temporarily connected with the main line engines, as shown in the drawing, in
which a is the main line engine and b is the pilot engine. c is a temporary cap and
tube for forming a connection between the funnel d of the main line engine a, and
the fire box e of the pilot engine.
Any other suitable form of connection may be used for transferring the products
of combustion from the fire box or funnel of the main line engine to the fire box of
the pilot engine. The latter engine is suitably fitted so as to carry away the
products of combustion from both engines to the slider and air trunk h, from
which such products are pumped.
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
In means and appliances for preventing the pollution of the atmosphere in
railway tunnels, the combination of a pilot engine fitted with appliances for
conveying away the products of combustion, and also fitted with a cap and tube cc,
or equivalent means for connecting such pilot engine with an ordinary locomotive
engine, substantially as and for the purpose herein before described, and illustrated
by the drawings.
Dated 25th Novamb 1901
GEO.
DOWNING,
8, Quality Court, London, W.C., Agent.