Engines, Applicable also to Portable Engines.
Year: 1885

page_text: Engines, Applicable also to Portable Engines.
I HENRY HARRISON, of Kingston Villa, 44 North Road, Longsight, Manchester,
Lancashire, Mechanical Engineer, do hereby declare the nature of said Invention
for IMPROVEMENTS IN LOCOMOTIVES, TRAMWAY AND OTHER ROAD ENGINES,
APPLICABLE ALSO TO PORTABLE ENGINES, to be as follows:-
.
My improvements consist first, in employing the waste products of combustion
and the exhaust steam for the purpose of heating the feed water before it enters
the boilers of locomotives, tramway or other road or portable engines and secondly
in forcing air through such feed water heater into the boiler in order to attain
a high pressure with a lessened consumption of fuel and water.
In carrying the first part of my Invention into effect I fix a water heater over
the smoke box and propose to make the chimney larger than usual; the water
heater is composed of a series of vertical tubes through which the waste products
of combustion and the exhaust steam pass; these tubes may be of any desired
length and have about the same area as the boiler tubes. The feed water is
pumped into the space around these vertical tubes and passes from thence into the
boiler so that the water is heated by the surplus heat and waste products of
combustion as well as by the exhaust steam.
In carrying the second part of my Invention into effect I propose to force
& certain quantity of air through the aforesaid water heater into the boiler by a
suitable air pump or pumps worked from an extension of the piston rods or in
other convenient manner, care being taken to always retain sufficient water in.
the boiler to ensure its safe working and to protect the fire box and tubes from
injury.
H. B. BARLOW,
Agent for Applicant,
4, Mansfield Chambers,
17, St. Ann's Square, Manchester,

page_text: wy
Engines, Applicable also to Portable Engines.
I HENRY HARRISON, of Kingston Villa, 44 North Road, Longsight, Manchester,
Lancashire, Mechanical Engineer, do hereby declare the nature of said Invention
for IMPROVEMENTS IN LOCOMOTIVES, TRAMWAY AND OTHER ROAD ENGINES,
APPLICABLE ALSO TO PORTABLE ENGINES, and in what manner the same is to
be performed, to be particularly described and ascertained in and by the following
statement:-
t
My improvements consist first in employing the waste products of combustion
and the exhaust steam for the purpose of heating the feed water before it enters
the boilers of locomotives, tramway and other road or portable engines, and
secondly in forcing air through such feed water heater into the boiler in order to
attain a high pressure with a lessened consumption of fuel and water.
*
In carrying the first part of my Invention into effect I fix a water beater over
the smoke box and propose to make the chimney larger than usual; the water
heater is composed of a series of vertical tubes through which the waste products
of combustion and the exhaust steam pass; these tubes may be of any desired
length and have about the same areas as the boiler tubes. The feed water is
pumped into the space around these vertical tubes and passes from thence into the
boiler so that the water is heated by the surplus heat and waste products of
combustion as well as by the exhaust steam.
In carrying the second part of my Invention into effect I propose to force
a certain quantity of air through the aforesaid water heater into the boiler by a
suitable air pump or pumps worked from an extension of the piston rods, or in
other convenient manner, care being taken to always retain sufficient water in
the boiler to ensure its safe working and to protect the fire box and tubes from,
injury.
And in order that my Invention may be fully understood and readily carried.
into effect I will describe the accompanying Sheet of Drawings, illustrative of my
Invention reference being had to the figures and letters marked thereon.
Fig. 1 is a front view of the boiler, chimney and some other parts of a locomotive
and Fig. 2 is a section on the line A. B. Fig. 1.
a is the boiler and b the chimney which is made larger than usual and may be
of any suitable shape and size; between the, boiler a and chimney, 6. I construct a
feed water heater c, composed as shown in Fig. 2 of any number of tubes c' secured
above and below to the tuba plates e and f, and to gain strength I prefer to employ
a plate g, secured by angle pieces h to the casing of the feed water heater, water is
forced through, the pipe i into the heater c, where it comes in contact with the
tubes c¹ and is heated by the waste products of combustion and the exhaust steam
which pass through the tubes c' on their way to the chimney b. The feed water
passes from the heater through the pipe j into the boiler.

page_text: When it is desired to force air under pressure into the boiler I employ one or
more air pumps, not shown, worked from an extension of the piston rods, or in
other convenient manner to compress the air and force it through the pipe k, under
a ball in the valve box l, into the feed water heater from which it passes with the
water into the boiler and thus a high pressure is obtained with a lessened consump-
tion of fuel and water.
During the time that water is being pumped into the heater o the ball will be
forced upon its seating to close the pipe k.
I have shown one arrangement of heater only, other forms of heaters in which
the waste products of combustion and exhaust steam pass through tubes to heat
the feed water may be employed.
The Drawings illustrate my Invention as applied to a locomotive only, but it may
be readily applied in a similar manner to a tramway or other road engine, or to a
portable engine by slightly varying the details if required.
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. A feed water heater composed of tubes through which pass the wasto
products of combustion and the exhaust steam for the purpose of heating the feed
water before it enters the boiler of a locomotive, tramway or other road engine, or
portable engine, substantially in the manner and for the purposes herein set forth.
2. Forcing air through a feed water heater of the type herein before described
into the boiler of a locomotive, tramway, or other road engine or portable engine,
substantially in the manner and for the purposes herein set forth.
H. B. BARLOW,
Agent for Applicant,
17, St. Ann's Square, Manchester.