Further Improvements in the Heating of Feed Water or Supply Water for Steam Boilers.
Year: 1892

page_text: Date of Application, 4th Aug., 1892-Accepted, 10th Sept., 1892
COMPLETE SPECIFICATION.
Further Improvements in the Heating of Feed Water or Supply
Water for Steam Boilers.
ADAM MILLER Consulting Engineer 11, Queen Victoria Street London
Middlesex England, 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 :—
This invention relates chiefly to further improvements on the apparatus for the
heating of feed or supply water by steam, for steam boilers-described in the
Specifications of former Letters Patent, granted to me, viz.: No. 7530, 1891.
In order to enable my invention to be fully understood, I shall proceed to
describe the same, by reference to the drawings-which represent a form of
tubular boiler, but which, also, may be applied to any form of land boiler, such as
Cornish, Lancashire or others, and to marine boilers.
DESCRIPTION OF THE DRAWINGS.
Fig. 1. shews a sectional end elevation of a tubular boiler with the primary
pipe A, and closed tanks or cases B, placed in position in the roof or steam space.
Fig. 2. is a plan of same, shewing the closed tanks or cases B, with the connecting
tubes or pipes C. 1. which convey the feed water from one tank to the other in
rotation.
.
Fig. 3. is an enlarged view of a closed tank or case B, shewing the partitions E,
in position, which divide the closed tank or case into various compartments.
A. is a primary pipe which conveys feed or supply water from the outside
supply, through the valve or cock D, and connects same to closed tanks or cases B.
A. 1. are branch pipes from primary pipe A, connecting same with closed
tanks B.
B. are closed tanks or cases, divided into various compartments by the
partitions E.
C. are small pipes placed in the bottom side of the lowest closed tank B, to
allow the feed water to fall or drop through the steam into the body of the water
in the boiler.
C. 1. are small connecting or separating pipes or tubes, placed in the bottom
sides of the closed tanks B, to divide or distribute the feed water, and to connect
the closed tanks or cases, so that the feed or supply water may pass through all
the closed tanks or cases successively.
D. is a check valve or feed cock placed on the outside shell or end of a boiler,
through which the feed or supply water passes into the primary pipe A.
E. are partitions in the closed tanks or cases, which divide each closed tank or
case into as many compartments as may be required, giving the feed or supply
water a downwardly course.
The feed or supply water is pumped or forced into a boiler through a check or
entrance valve or cock D; this check or entrance valve or cock D, may be fixed
on the end plates, or on the shell plates of a boiler, in any position suitable to the
requirements.
An internal or primary pipe A is connected to this entrance valve or cock D,
and it extends, or is carried, to the roof or upper portion or the steam space
of a boiler, it is then divided, or divides into two or more portions or branches A. 1.
and connects with closed tanks or cases B; which may be fixed horizontally or
circumferentially in the steam space of a boiler, or according to circumstances.
The feed water, as it accumulates in pipe A, to the upper portions or branches A. 1.
flows into the closed heating tanks or cases B.
Each closed tank or case B is divided into three or more compartments, each

page_text: compartment conveys the feed water on a downwardly course towards its final
discharge by the open ends of pipes C; and thus drops through steam into the body
of water in the boiler, from the mouths of the pipes C.
The pipes or tubes C. 1. are separating and connecting feed water pipes from the
lower compartment of one closed heating tank to the upper compartment of another
closed heating tank, and so on in rotation through all the closed tanks; they divide
the feed water into small streams or portions and distribute it over the compartments
of a closed tank, so that the steam which is in the compartments of the closed
heating tanks may act more effectually on the divided water.
Each compartment in each closed heating tank or case B, and the separating and
connecting pipes C. 1. are made large enough to contain steam and feed water at
the same time, and to allow of the steam to pass into, and through the closed tanks
or cases B, and into the primary pipe A continuously.
Having now particularly described and ascertained the nature of the said inven-
tion, I declare that what I claim is :-
1st. For the heating of feed or supply water, by steam, for steam boilers. A
system of closed tanks or cases, connected with each other, and placed in the upper
part or steam space of a boiler, through which the feed or supply water flows, and
which closed tanks or cases are made sufficiently large to be partly filled with
"water, and partly occupied by steam, substantially as herein set forth.
2nd. For the heating of feed or supply water, by steam, for steam boilers. A
system of closed tanks or cases, placed in the upper part or steam space of a boiler,
and in combination with a primary pipe having reduced or separating branches, and
connecting with the closed tanks or cases. The primary pipe and its branches, and
the closed tanks or cases being partly filled with water, and partly occupied by
steam, substantially as herein set forth."
3rd. For the heating of feed or supply water by steam, for steam boilers. A
system of closed tanks or cases, placed in the upper part or steam space of a boiler,
and combining with a primary pipe receiving from the external supply pipe, the
feed water. A plurality of smaller pipes connecting with each closed tank or case
and separating the feed water into small streams, thereby distributing the feed
water over a large heating surface All closed tanks and pipes being partly filled
with water and partly occupied by steam, substantially as herein set forth.
4th. For the beating of feed or supply water by steam, for steam boilers. A
system and combination of closed tanks or cases, connected together by small pipes
to convey the feed or supply water from the bottom compartment of one closed
tank or case, to the top or upper compartment of another closed tank or case, and
so on, through each closed tank or case consecutively, until the feed or supply
water is heated and discharged from the mouths of the lowest and last pipes of the
. lowest placed closed tank or case, substantially as herein set forth.
5th. For the heating of feed or supply water, by steam, for steam boilers. A
system of closed tanks or cases placed in the upper part or steam space of a boiler;
each closed tank or case being divided or partitioned off into three or more
compartments, each compartment being made for the feed or supply water to have
a 'downwardly course, each closed tank or case having small connecting 'pipes,
*separating the water into small streams as it flows from the lower or bottom
compartment of an upper closed tank or case, into the upper or top compartment
of a lower closed tank or case, and so on successively, the feed or supply water
flowing from one closed heating tank or case to the one placed lower, until it is
heated and discharged, or drops from the mouths of the lowest of the small pipes,
through the 'steam, into the body of the water in the boiler, substantially as herein
set forth.
thedin Awst 1000