Improvements in and connected with Fuel Economisers or Feed Water Heaters.
Year: 1897

page_text: Date of Application, 3rd Sept., 1897
Complete Specification Left, 28th May, 1898-Accepted, 9th July, 1898
PROVISIONAL SPECIFICATION.
Improvements in and connected with Fuel Economisers or Feed
Water Heaters.
We, WILLIAM HUTCHINSON, of 66, Elizabeth Street, Eccles New Road, Weaste,
Engineer, WILLIAM GARNER and ROBERT TELFORD, both of Cobden Street, Pendle-
ton, Boiler-makers, all in the County of Lancaster, do hereby declare the nature
of this invention to be as follows:-
This invention relates to an improved method of feeding fuel economisers or
feed water heaters of the type known as Green's fuel economisers and has for
its object to free its pipes from boiler pressure and thus prevent breakages and
render same more durable than heretofore has been the case.
To this end, instead of running the hot water from the fuel economiser direct
into the boiler, we employ at a suitable elevation above the economiser a water
cistern which we connect with the inlet of the economiser and the outlet of the
latter with the feed pump of the boiler. The said cistern is adapted to feed the
economiser with cold water and being at a higher level will cause the water to
circulate through the same and afterwards run to the feed pump which forces
it into the boiler.
In order to obtain the full benefit of the hot gases passing from the furnace
flue to the chimney we employ in each pipe of the economiser à scraper or scrapers
formed in spiral fashion with sharp edge which scraper or scrapers may be actuated
by hand or mechanically and are operated periodically, say, once every month.
In order to give quick access to the interior of the pipes of the economiser
for scraping and other purposes, we fit the water box opposite each end of the
pipes with a conical plug furnished on its periphery with a conical ring and
formed at its top with a slot for the reception of a T bolt by means of which
and a bridge the said plug is secured to the water box, the said ring being placed
upon the plug after the plug has been inserted into the respective hole in the box.
Dated this 2nd day of September 1897.
F. BOSSHARDT & Co.,
Agents to Applicants.
Improvements in and connected with Fuel Economisers or Feed
Water Heaters.
We, WILLIAM HUTCHINSON, of 66, Elizabeth Street, Eccles New Road, Weaste,
Engineer, WILLIAM GARNER and ROBERT TELFORD, both of Cobden Street, Pendle-
ton, Boiler-makers, all in the County of Lancaster, do hereby declare the nature
of this invention and in what manner the same is to be performed, to be particu-
larly described and ascertained in and by the following statement: —
This invention relates to an improved method of feeding fuel economisers or

page_text: feed water heaters of the type known as
66
Green's fuel economisers" and has for
its object to free its pipes from boiler pressure and thus prevent breakages and
render same more durable than heretofore has been the case.
And in order that our invention may be more fully understood we have caused
to be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures, Fig. 1 being an end view of an econo-
miser or feed water heater provided with our improvements Fig. 2 a longitudinal
section and Fig. 3 a plan at an enlarged scale of the upper end of a water pipe
and box of the economiser or feed water heater furnished with our improved
plug or lid joint.
In carrying out our invention and referring to Fig. 1, instead of running the
hot water from the fuel economiser direct into the boiler, we employ at a suitable
elevation above the economiser or water heater A a water cistern a which we
connect with the inlet b of the economiser or water heater and the outlet c of the
latter with the feed pump of the boiler (not shown). The said cistern is adapted
to feed the economiser heater A with cold water and being at a higher level, will
cause the water to circulate through the same and afterwards run to the feed
pump which forces it into the boiler.
The cistern a may be supplied with cold water in any suitable manner and in
order to relieve the heating pipes d from internal pressure a pipe e may be con-
nected to the outlet c and lead up to the supply cistern a through which pipe
the steam may escape into the latter.
In some cases we may connect the water supply cistern a with the outlet c
and the inlet 6 with the feed pump (not shown) all will be readily understood.
In order to obtain the full benefit of the hot gases passing from the furnace
flue to the chimney we may employ in each pipe of the economiser a scraper or
scrapers formed in spiral fashion with sharp edge which scraper or scrapers may
be actuated by hand or mechanically and are operated periodically, say, once
every month.
Referring to Figs. 2 & 3, in order to have quick access to the interior of the
pipes d of the economiser or water heater for scraping and other purposes, we fit
the water box dopposite each end of the piped with a conical plug or lid f
furnished on its periphery with a conical ring 9 and formed at its top with a
slot for the reception of a T bolt by means of which and a bridge, see dotted
lines, the said plug or lid is drawn tight and thereby secured to the water box d,
the said ring being placed upon the plug or lid f after the plug has been inserted
into the box d through the respective hole and the bolt and bridge being removed
as usually after the joint is made.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what we
claim, is:-
1st. The method of feeding fuel economisers or feed water heaters of the type
herein before referred to, consisting in supplying same with cold water from a
cistern suitably connected therewith, running the hot water from the economiser
or heater to a feed pump and forcing same thereby into the boiler, all sub-
stantially as and for the purpose set forth.
2nd. In fuel economisers or feed water heaters of the type hereinbefore referred
to, in combination with the plugs or lids f in the water box d³, conical rings g
adapted to fit and be drawn tight between the same and the holes in the box d¹,
all substantially as set forth.
370
OF DRAY 1656.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicants.