Improvements in Fuel Economisers or Feed-water Heaters.
Year: 1894

page_text: This print is in accordance with the Original Specification as it stands after
Amendment (under Section 11 of the Patents, &c. Act, 1883) as required by
the decision of the Comptroller General of the 10th day of March 1896.
Date of Application, 1st Dec., 1894
Complete Specification Left, 31st Aug., 1895-Accepted, 5th Oct., 1895
PROVISIONAL SPECIFICATION.
Improvements in Fuel Economisers or Feed-water Heaters.
I, ARTHUR LOWCOCK, of Coleham Foundry, Shrewsbury, in the County of
Salop, Engineer, do hereby declare the nature of this invention to be as
follows:-
My invention relates to improvements in those fuel economisers in which the feed
water is fed into upright pipes contained in a chamber through which the heated
waste gases from the boilers are conducted in their passage to the chimney.
In carrying my improvements into effect I introduce into each pipe a filling up
piece such as a smaller pipe closed at the bottom end and preferably suspended from
a bar in the top box or in any other convenient manner so that each filling up piece
hangs concentrically in its economiser pipe. The length of each filling up piece is
by preference a few inches or a foot or so shorter than the economiser pipe in which
it is placed. If necessary the filling up pieces may have external projections to
maintain them concentrically in their economiser pipes.
By the use of filling up pieces as described the internal area or water space of the
vertical pipes is materially reduced and consequently the heated gases act upon a
comparatively thin volume of water whereby an increased temperature and an
increased circulation of water in the pipes is obtained.
Dated this 30th day of November 1894.
H. B. BARLOW & GILLETT,
Agents for Applicant.
CELERISCE OF FOEd-water Heaters.
I, ARTHUR Lowcock, of Coleham Foundry, Shrewsbury, in the County of
Salop, Engineer, 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 :-
My invention relates to improvements in those fuel economisers in which the
feed water is fed into upright pipes contained in a chamber through which
the heated waste gases from the boilers are conducted in their passage to the
chimney.

page_text: In carrying my improvements into effect I introduce into each pipe a nuing up
piece such as a smaller pipe closed at the bottom end and preferably suspended from
a bar in the top box or in any other convenient manner so that each filling up piece
hangs concentrically in its economiser pipe. The length of each filling up piece is
by preference a few inches or a foot or so shorter than the economiser pipe in
which it is placed. If necessary the filling up pieces may have external projections
to maintain them concentrically in their economiser pipes.
And in order that my invention may be fully understood and readily carried into
effect will describe the accompanying sheet of drawings reference being had to
the figures and letters marked thereon.
Fig. 1 is a longitudinal section, Fig. 2 a plan view of Fig. 1, Fig. 3 a longitudinal
section taken at right angles to Fig. 1, aud Fig. 4 is a plan view of Fig. 3, of an
economiser pipe in which is suspended a filling up piece made according to my
.invention.
In the drawings,-a represents an economiser pipe, b a bar supported by the
upper edge of the pipe a and from this bar is suspended a filling up piece c, in this
case tubular and provided with a solid bottom to prevent the admissin of water,
the tube is closed also at the upper end by drawing cut and flattening the metal or
in any other convenient manner, a hole c¹ is made through the metal so that the
bar can be passed through the hole in order to support the filling up piece.
The construction of the bar b is such that the filling up piece hangs in the middle
of its pipe a but if desired projections can be formed upon or secured to the filling
up piece such projections touching the side of the pipe a and so preventing the piece c
from moving out of the centre of its economiser pipe.
The filling up piece c may be as long as the economiser pipe or as much shorter
as may be found desirable.
By the use of filling up pieces as described the internal area or water space of the
vertical pipes is materially reduced and consequently the heated gases act upon a
comparatively thin volume of water whereby an increased temperature and an
.increased circulation of water in the pipes is obtained.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed 1 declare that I am aware
that it has been previously proposed to use inner tubes in the heating pipes of fuel
economisers to cause the feed water to flow in thin annular streams and I do not
make a general claim to such arrangement, but what I claim is :-
In a fuel economiser―
1. The use and application of a filling up piece applied to an economiser pipe said
filling up piece being either tubular or solid and supported in any convenient
manuer substantially as and for the purposes described.
2. The combination with an economiser pipe of a filling up piece such as described
and shown either with or without external projections to maintain it concentrically
in the pipe substantially as described.
Dated this 30th day of August 1895.
H. B. BARLOW & GILLETT,
17 St. Ann's Square, Manchester, Agents for Applicant.