Improved Arrangements for Consuming Smoke in connexion with Steam-boiler Furnaces.
Year: 1894

page_text: Date of Application, 3rd Aug., 1884
Complete Specification Left, 1st May, 1895-Accepted, 3rd Aug., 1595
PROVISIONAL SPECIFICATION.
Improved Arrangements for Consuming Smoke in connexion with
Steam-boiler Furnaces.
GEORGE STIRK Agent 38 Gaythorne Road Bradford Yorkshire. I do hereby
declare the nature of this invention to be as follows:-
The boiler to be constructed so that the smoke generated in one fire flue shall be
sent round the internal end of the boiler and made to pass under and through the
fire flue of the other and to find its escape at the front internal end.
Dated this 3rd day of August 1894.
Improved Arrangements for Consuming Smoke in connexion with
Steam-boiler Furnaces.
I GEORGE STIRK of 38 Gaythorne Road, Bradford, in the County of York,
Agent, do hereby declare the nature of this invention and in what manuer the
same is to be performed, to be particularly described and ascertained in and by
the following statement:-
This invention is applicable to Lancashire boilers.
The boiler to be constructed, so that the smoke generated in one fire-flue, shall
be sent around the internal end of the boiler; as denoted by the arrows on
Sheet 2; and made to pass under and through the fire of the other, and find its
escape at the front internal end; thence aiong side, back, side and bottom to
chimney; as denoted by arrows on Sheet 4.
This Specification together with the subjoined drawings, shew how the same is
to be effected.
Fig. 1 (Sheet 1) represents the boiler front;
A is a plate made to slide up and down in a frame, which is fitted to the boiler
face so as to prevent the admission of air to the fire-box; when the twin fire is
being fed.
B pulleys, over which a chain runs, and by means of which, the plates are made
to rise and fall alternately.
C pulleys, along the top and sides of the boiler; which serve to raise and lower
as required, the side plates U, and dampers I.
The whole are geared so as to act simultaniously.
D the flues, which traverse the boiler from front to back; as shewn on Fig. 2 and
Fig. 4.
E flue, under the boiler.
Fa stay, to support the side frame for plate U.
Gan air tube and steam jet; indicated by dotted lines, to be made of copper
and bell mouthed.
The outlet of the tube to be oval; six inches by two and a half inches, and to
be fixed on entering the fire-box at bevil; so as to throw the air on the fire, not
less than three feet from the fire door.

page_text: The tubes N to be made of cast or wrought iron; in five sections, flanged; and
of a suitable thickness of metal for its purpose.
Fig. 4 (Sheet 4) the bed of the boiler and flues.
I dampers double hinged, which are to work in a frame with socket attachment,
like flap Q in Figure 3.
Frame and dampers to be of cast iron; both of necessary strength for the
purpose.
The four plates, and the two dampers, to be accurately balanced, so as to cause
the least possible friction.
The boiler to be made according to Figures 2 and 3.
The usual boiler stays, manholes, safety valve, water and steam gauge, and all
necessary fittings, to be provided in the ordinary way.
Having now particularly described and ascertained, the nature of my said inven-
tion; and the manner the same is to be performed: I declare that what I
claim is-
1st. The return of the imperfectly consumed gases, from one furnace; to the
incandescent fire of the other furnace; to the underside of the grate bars, and
through the furnace, so as to insure perfect combustion.
I may use forsed blast, or steam jets, to assist the draught.
2nd. The combination of doors, flaps, and the novel system of arrangement of
internal and external flues, to effectually consume smoke.
Dated this 1st day of May 1895.
GEORGE STIRK.