Improvements in connection with Domestic Fire Ranges and other Furnaces.
Year: 1890

page_text: Date of Application, 29th July, 1890
Complete Specification Left, 20th Apr., 1891-Accepted, 6th June, 1891
PROVISIONAL SPECIFICATION.
Improvements in connection with Domestic Fire Ranges and
other Furnaces.
1, EDWIN MARSII, of 8 Hull Street, Green Road, Leeds, in the County of
York, Engineer, do hereby declare the nature of this invention to be as
follows:-
This invention relates to certain improvements in connection with fires and
furnaces and is particularly applicable to fires and furnaces fitted with louver
bars as described in my Patent Specification No. 16409 dated 13th November 1888,
and has for its object the removal of the ashes and other waste products of
combustion from the fire range or furnace by a mechanical arrangement operated
at the will of the attendant or by suitable connections with a rotating shaft.
I accomplish my object in the following manner-Instead of the usual fire
grates placed at the bottom of the fire chamber or furnace, I place a plate having
a hole through of about the width or length of fire space. To this plate is or are
mounted one or more rollers, fluted or otherwise, which may be coupled together
by wheels, so that on operating one roller all will be rotated.
To the said plate is jointed a lever having a pawl hinged thereto, and which
engages with a ratchet wheel secured to the shaft of one of the before named
rollers. On the operation of the lever by the attendant or by mechanical means,
an intermittent rotating motion is imparted to the roller or rollers, thereby
causing the ashes and other products of combustion to fall from the bottom of
the fire chamber without the intervention of bars or other agitating agents.
Dated this 26th day of July 1890.
JOHN WAUGH,
Agent.
COMPLETE SPECIFICATION.
Improvements in connection with Domestic Fire Ranges and
other Furnaces.
I, EDWIN MARSH, of 8 Hull Street, Green Road, Leeds, in the County of
York, Engineer, 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 in connection with fires and
furnaces, and is particularly applicable to fires and furnaces fitted with louver bars
as described in my Patent Specification No. 16409 dated 13th November 1888,
and has for its object the removal of the ashes and other waste products of
combustion from the range or furnace by a mechanical arrangement operated at
the will of the attendant or by suitable connections with a rotating or reciprocating
shaft.
In the accompanying drawings
1
Fig. represents the front elevation of a domestic range fitted with louver bars
and rollers in accordance with my invention.
Fig. 2 is a vertical section through line a. b. of fire space and flue leading
therefrom and
Fig. 3 a view of one of the louver bars.
The oven and other parts of the domestic range or fixture are of the ordinary
description, to which no claim is made as forming part of this invention. Instead

page_text: of the usual fixed bars in front of the fire, I mount the louver bars A supported
at each end on studs projecting therefrom, each bar being provided with a lever B.
which are connected together by a rack rod C. the teeth of which gear into a
segment wheel D. attached to lever E. by the operation of which the louver bars A
are oscillated on the supporting pins or studs S.
Instead of the usual fire grates placed at the bottom of the fire chamber or
furnace space F. I place a plate G secured to the front plate H of range, or in
any convenient manner, and through which is formed a hole equal to about the
length and width of the fire space. To the underside of this plate at each end
thereof, is secured a bar J. in which are formed recesses or journals for the
reception of the spindles of fluted rollers R. R. which are geared together by a
pair of spur wheels mounted on one end of the said spindles.
To one of the spindles is secured a disc K. having a number of holes radiating
from the centre for the reception of a lever by which the disc K may be recipro-
cated or rotated, thereby operating the rollers R. R. accordingly, by which the
ashes and other products of combustion are agitated and caused to fall from the
bottom of the fire space into a receptacle 1. below. By the introduction of rollers
at the bottom of the fire space F. in the manner described, less space for the
passage of air is obtained through the bottom, thus necessitating most of the air
to pass through the spaces between the louver bars A. by which it is deflected on
to the fuel, thereby causing more perfect combustion with a corresponding decrease
in the amount of smoke emitted.
My improvement may be applied to other furnaces having louvers in front of
the fire, and the rollers R. R. may be operated in the manner described or
mechanically by a reciprocating lever having a pawl fitted thereto and engaging
with a ratchet wheel keyed on one of the roller spindles in place of the disc K.
by which the ashes and other products of combustion are caused to fall from
the bottom of the fire chamber without the intervention of bars or other agitating
agents.
Having now particularly described and ascertained the nature of my inven
tion, and in what manner the same may be performed, I declare that what I
claim is
The combination of louver bars A. fitted in front of a fire space or furnace with
rollers R. R. mounted at the bottom of said fire space or furnace, all operated
and arranged substantially in the manner shown and as hereinbefore set forth.
Dated this 27th day of April 1891.
JOHN WAUGH,
Agent.