Improvements in or relating to Furnace-grates for Marine and other Boilers.
Year: 1896

page_text: Date of Application, 6th Jan., 1896
Complete Specification Left, 6th Oct., 1896-Accepted, 7th Nov., 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to Furnace-grates for Marine and other
Boilers.
I CHARLES WARE, of 31 Dorking Road, Deptford in the County of London,
Copper-smith do hereby declare the nature of this invention to be as follows:-
This invention relates to certain improvements connected with the furnaces of
marine and other boilers, and has for its object to increase the heating surface.
For this purpose, according to this invention, I construct the grate with tubular
bars of any desired form in cross section; in addition to this I may have tubes over
the furnace.
These tubes communicate with chambers at the back and front of the furnace:
such chambers being in communication with the boiler, in such a way, that the
water may circulate throngb all the aforesaid tubes. The boiler is fed in the
ordinary way, or it may be fed through the tubes aforesaid.
For circular grates, I propose to have an annular chamber with which the hollow
bars communicate.
The aforesaid chambers are provided with loose covers which are bolted on; so
that they may be removed in order that access may be obtained to the tubes for
cleaning purposes.
Dat this Sixth day of January 1896.
BROWNE & CO.,
Agents.
COMPLETE SPECIFICATION.
Improvements in or relating to Furnace-grates for Marine and other
Boilers.
I CHARLES WARE, of 31 Dorking Road Deptford in the County of London,
Copper-smith, 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 to certain improvements connected with the furnaces
of marine and other boilers, and has for its object to increase the heating
surface.
For this purpose, according to this invention, I construct the grate with tubular
bars of any desired form in cross section; in addition to this I may have tubes over
the furnace.
These tubes communicate with chambers at back and front of the furnace: such
chambers being in communication with the boiler, in such a way that the water may
circulate through all the aforesaid tubes. The boiler is fed in the ordinary way,
or it may be fed through the tubes aforesaid.
For circular grates, I propose to have an annular chamber with which the hollow
bars communicate.
The aforesaid chambers are provided with loose covers which are bolted on; so
that they may be removed in order that access may be obtained to the tubes for
cleaning purposes.

page_text: And in order that my said invention may be better understood I will now proceed
to describe the same with reference to the drawing accompanying this specification
in which
Fig. 1 is a plan of my improved grate, as applied to a longitudinal boiler.
Fig. 2 half front elevation of same.
Fig. 3 section on line A B Fig. 1.
Fig. 4, plan shewing my improvements as applied to a grate for a circular
boiler.
The same letters denote the same parts in all the views.
a shews tubes, serving as fire-bars, communicating with a chamber b at the back
of the furnace and also with another chamber c at the front. The chamber c is
divided in two, by the rib of metal k (see Fig. 2).
a Figs. 1 2 and 3 are other tubes above the furnace, also communicating with
the chambers b and c. d is an inlet from, and e an inlet to, the boiler.
In Fig. 4 the tubes or fire-bars a communicate with only one chamber f, which is
of an annular shape, and divided into two by means of the partitions or stops 99
shewn dotted at Fig. 4.
h and i shew loose covers to the chambers b and c respectively, these covers may
be bolted on.
With reference to the grate for a longitudinal boiler shewn at Figs. 12 and 3,
it will be seen that if water passes through the inlet d into the part of the chamber c
below the rib k, it must, before passing through the outlet e, circulate through the
tubes a, chamber band tubes a.
With reference to the grate shewn at Fig. 4, water entering by the inlet d must
leave the chamber f by the tubes a, thus passing into the second half of the
chamber f, out of which it flows by means of the outlet e.
It will thus be seen that a large amount of extra heating surface 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 I declare that what I
claim is :-
1. The improvements in or relating to furnace grates for marine and other
boilers substantially as and for the purpose set forth.
2. In furnace grates for marine and other boilers the use of tubular fire-bars,
communicating with the boiler for the purpose set forth.
3. In furnace grates for marine and other boilers the use of tubular fire-bars
communicating with the feed water supply and the boiler for the purpose set
forth.
4. In furnace grates for marine and other boilers the use of additional tubes
over the furnace grate and communicating with the boiler for the purpose
set forth.
Dated this Sixth day of October 1896
BROWNE & Co.,
9 Warwick Court, Gray's Inn, London, W.C.,
Agents for the Applicant.