IMPROVEMENTS IN FIRE-PROOF DISCS OR BAFFLE PLATES FOR USE IN THE FLUES OF STEAM BOILERS
Year: 1884

page_text: I, ROBERT GOSLING of Ipswich in the County of Suffolk, Engineer do hereby
declare the nature of my invention for "IMPROVEMENTS IN FIRE-PROOF DISCS OR
BAFFLE PLATES FOR USE IN THE FLUES OF STEAM BOILERS "to be as follows:-
This invention relates to improvements in the manufacture of dises mostly
applicable to Cornish or any Horizontal Flue'd Boiler for the purpose of economising
fuel and utilizing the heat generated in the flue inside the Boiler and thereby
causing the whole interior surface of the Boiler flue to become an efficient heating
surface.
For this purpose I use a disc mainly composed of Ganister material Fire clay
and Silica to stand the heat without cracking.
In carrying the said invention into practice I divide the disc into segments so
that they can be placed or fixed in the tube of the Boiler with greater, ease, each
segment interlocking with key or dovetail. The disc rests upon two brackets or
feet composed of the same inaterial and placed at right angles to the disc in each
of which is cut a slot to better hold the disc In fixing the discs into the flues of
Boilers they are placed about three feet apart and with each disc leaving about
two inches from top of disc to top of flue, and seven inches between bottom of disc
and bottom of Flue.
EDWARD L. COAD,
42 & 43, Essex St., Strand, W.C.,
Agent.

page_text: I ROBERT GOSLING of Ipswich in the County of Suffolk Engineer do hereby
declare the nature of my invention for IMPROVEMENTS IN FIRE PROOF DISCS OR
BAFFLE PLATES FOR USE IN THE FLUES OF STEAM BOILERS 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 improvements in the manufacture of discs applicable
to stationary marine or any horizontal flued boilers for the purpose of economizing
fuel and utilizing the heat passing in the flue inside the boiler and thereby causing
the whole interior surface of the boiler flue to become an efficient heating surface.
For this purpose I use a disc mainly composed of Ganister material fire clay and
silica compounded in such manner as is well known or I use like refractory material
to stand the heat without cracking.
In carrying the said invention into practice for stationary boilers I divide the
disc into segments so that they can be placed or fixed in the tube or flue of the
boiler with greater case each segment interlocking with key or dovetail.
The disc rests upon two brackets eet composed of the same or a like refractory
material and placed at right argies to the disc in each of which is cut a slot or
groove to better hold the disc.
In fixing the discs into the flues of boilers they are placed advantageously three
feet apart and with each disc leaving say about two inches from the top of the
disc to top of fluo and (adhering to these dimensions) seven inches between the
bottom of the disc and bottom of flue.
I do not bind myself to these dimensions.
And in order that my invention may be understood and carried into practical
effect I have caused to be annexed to this specification the accompanying sheet of
drawings illustrative of the manner of performing my invention and I now refer to
the figures and letters of reference marked thereon.
Fig 1 shows a section of a flue such as is used in a Lancashire boiler or Cornish
boiler.
A shews the flue. B¹, B¹, B' the disc. This is shewn in sections. B being the
lower having a dovetail or plain groove G in the same, the upper sections B' B²
have respectively a tongue or key D in the one, to fit a dovetail or plain groove in
the other while a tongue or key E fits the dovetail or plain groove C in the
section B or I may make the disc in two parts or more if required. The whole fits
into feet or brackets F as shewn, the said brackets or feet being at right angles to
the discs, a groove or grooves in the brackets or feet receiving the discs. For
marine boilers I may make the discs in one piece with the feet or brackets and
with a boss or projection on the top to abut on the flue and furnish the feet or
brackets and boss with grooves to fit on iron lugs rivetted in the flue so as to
steady the whole in case of a ship rolling or pitching. The discs are shewn placed
nearer the top of the flue than the bottom so as to baffle the rising currents of heat
and prevent their too rapid circulation through the flue thus heating the same in a
more efficient manner.
In place of wholly constructing my discs and brackets or feet of refractory
material I may use iron lined or coated with the same.
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.
Firstly. Constructing fire proof discs or baffle plates for use in steam boiler flues,
in sections adapted to fit or tie each other together by tongues or dovetails and
grooves as and for the purposes described.

page_text: Secondly. Placing the discs or baffle plates eccentrically with the axis of the flue
in the manner and for the purposes described.
Thirdly. In combination with the said discs or baffle plates, the refractory feet
or brackets having grooves to fit and support the discs or baffle plates when placed
in the flue substantially as described.
er 1884.
ROBERT GOSLING.
By E. Gardner Colton, A.S.T.E.,
(Fellow of the Institute of Patent Agents),
Of the firm of Popplewell, Colton & Co.,
17 & 18, Southampton Buildings, W.C.,
and Albert Street, Derby.
Dated this 13th day of November 1884.
ROBERT GOSLING.
By E. Gardner Colton, A.S.T.E.,
(Fellow of the Institute of Patent Agents),
Of the firm of Popplewell, Colton & Co.,
17 & 18, Southampton Buildings, W.C.,
and Albert Street, Derby.