Improvements in Steam Boiler Furnaces and Bars, and Apparatus for Supplying Coal thereto.
Year: 1897

page_text: Date of Application, 27th July, 1897
Complete Specification Left, 27th Apr., 1898-Accepted, 9th July, 1898
Date of Application, 27th July, 1997
Complete Specification Left, 27th Apr., 1898-Accepted, 9th July, 1898
PROVISIONAL SPECIFICATION.
Improvements in Steam Boiler Furnaces and Bars, and Apparatus for
Supplying Coal thereto.
We, ALBERT JOSEPH ROBERTS, of Phillips Park Road, Beswick, Manchester,
in the County of Lancaster, Cashier, and JOSEPH GLEAVES, of Phillips Park Road,
Beswick, Manchester aforesaid, Boiler Maker, do hereby declare the nature of
this invention to be as follows:
This invention relates to improvements in mechanical stokers and non-
clinkering bars for steam boiler furnaces and is designed with the object of
rendering the furnace smoke consuming or smokeless by promoting more
complete combustion therein.
In carrying out the invention we provide a screw box running longitudinally
of the furnace, and extending from the extension to the fire bridge or other
suitable distance into the furnace. Connected to this screw box in front of the
furnace is a hopper or receiver by which the coal is delivered, and in the screw
box is placed an archimedian or other suitable screw by which the coal is carried
into and delivered to the furnace. The screw is set so that its upper surface
is about two inches below the bars.
The bars are of any suitable shape or construction running longitudinally of the
furnace, mounted so as to be traversed backwards and forwards with a rising and
falling movement. The bars are caused to move to and fro, and lifted, by means of
cranks, cams, or eccentrics on a rotating shaft placed in front of the boiler,
and at the other end rest and slide upon an incline fitted to or carried by the
bridge. The clinkers or ashes are carried over the bridge by the action of the
bars.
The screws are rotated either intermittently or continuously. A ratchet on
the end of the screw shaft may be operated by a reciprocating lever and pawl
or by bevel spur or friction gearing or otherwise.
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WM. P. THOMPSON & Co.,
6, Bank Street, Manchester, Patent Agents.
COMPLETE SPECIFICATION.
0 Improvements in Steam Boiler Furnaces and Bars, and Apparatus for
Supplying Coal thereto.
We, ALBERT JOSEPH ROBERTS, of Phillips Park Road, Beswick, Manchester,
in the County of Lancaster, Cashier, and JOSEPH GLEAVES, of Phillips Park Road,
ID 77
COMPLETE SPECIFICATION.
0 Improvements in Steam Boiler Furnaces and Bars, and Apparatus for
Supplying Coal thereto.
We, ALBERT JOSEPH ROBERTS, of Phillips Park Road, Beswick, Manchester,
in the County of Lancaster, Cashier, and JOSEPH GLEAVES, of Phillips Park Road,
ID 11

page_text: Beswick, Manchester aforesaid, Boiler Maker, 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 improvements in mechanical stokers and non-
clinkering bars for steam boiler furnaces and is designed with the object of
rendering the furnace smoke consuming or smokeless by promoting more
complete combustion therein.
It will be fully described with reference to the accompanying drawings.
complete combustion there.
It will be fully described with reference to the accompanying drawings.
Fig. 1. Front elevation.
Fig. 2. Longitudinal sectional elevation.
Fig. 3. Sectional plan...
Fig. 4. Transverse section.
Fig. 5. End elevation of back of the furnace.
We construct the furnace with one or two (preferably two) archimedian
screws A either straight or tapered placed in suitable troughs or boxes B extending
from the front exterior of the furnace to the bridge or any other suitable
distance into the interior of the furnace by which the coal is carried into and
delivered to the furnace.
Connected to each of the screw boxes B in front of the furnace is a hopper D
by which the coal is delivered to the screw A. The screws are so sct that the
upper surface of each is about two inches below the bars E.
The bars E are of any suitable shape or construction running longitudinally
of the furnace, mounted so as to be traversed backwards and forwards with a
rising and falling movement. The bars E are caused to move to and fro and
lifted by means of cranks, cams, or eccentrics F on a rotating shaft G placed in
front of the boiler, and at the.other end rest and slide upon an incline H fitted
to or carried by the bridge C. The clinkers or ashes are carried over the bridge
by the action of the bars.,
The screws A are rotated either intermittently or continuously preferably by
the worm g on the rotating shaft G gearing with the worm wheel a on the end
of the screw.
Or the screws may be rotated by a ratchet wheel on the end of
the screw shaft operated by a reciprocating lever and pawl or by bevel spur
friction or other suitable gearing.
Air may be admitted behind the bridge E to promote or support secondary
combustion through an opening e covered by a disc K with apertures k by which
the aperture e is opened and closed at intervals. The disc K is rotated by a
gear wheel L on the end of one screw engaging with a wheel connected to the
disc K.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed we declare that what
we claim is: -
In a steam boiler furnace the combination of apparatus for feeding coal and
moveable fire bars constructed and arranged substantially as described and shown.
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قيمم
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WM. P. THOMPSON & Co.,
Manchester, Liverpool, & London, Patent Agents.
WM. P. THOMPSON & Co.,
Manchester, Liverpool, & London, Patent Agents.