Improvements in or connected with Gas Producers.
Year: 1899

page_text: Date of Application; 14th Sept., 1899
Complete Specification Left, 28th May, 1900-Accepted, 30th June, 1900
PROVISIONAL SPECIFICATION.
Improvements in or connected with Gas Producers.
We, EDWARD JAMES DUFF, Engineer, and THE UNITED ALKALI COMPANY,
LIMITED, both of 30, James Street, Liverpool, in the County of Lancaster, do
hereby declare the nature of this invention to be as follows:-
This invention relates to the grates of gas producing apparatus and more
particularly to those of the type of gas producer described in the Specification
of Letters Patent No. 7467 of 1893.
In gas producing, where a considerable amount of steam is employed which is
necessary where ammonia recovery is desired, blockage is liable to occur owing
to a tendency of the fine dust from the ashes to cake on the bars of the grate.
This invention provides means whereby such blockage can be removed without
interfering with the operations going on in the producer and without the neces-
sity for opening the producer by the removal of manhole covers, or the like, as
hitherto has been necessary.
According to this invention a hammer, or a series of hammers is manipulated
(which can be done by a lever outside the producer) so that sufficient movement
is given to the bars to break up and dislodge any caked material.
The bars of the grate are connected in the form of grids which are inclined
to each other forming a grate of inverted V form. The upper edges of the
grids lie against the bearing in which the spindle carrying the hammer or ham-
mers, moves and they are held in position by a head piece which forms the upper-
most portion of the inverted V grate. This head piece also serves to limit the
movement when the grids are struck. The lower edges of the grids rest in a groove
so as to allow of the necessary motion.
The hammer or hammers is or are preferably carried on a spindle so arranged
that, by means of an outside lever blows can be given to the top of the grids on
one side, or the other, as desired.
Dated this with day of Santambor 1800
JOHNSONS & WILLCOX,
47, Lincoln's In Fields, London, W.C., Agents.
improvements in or connected with Gas Froducers.
We, EDWARD JAMES DUFF, Engineer, and THE UNITED ALKALI COMPANY,
LIMITED, both of 30, James Street, Liverpool, in the County of Lancaster, do
hereby declare the nature of this invention and in what manner the same is to
Price 8d.1

page_text: be performed to be particularly described and ascertained in and by the follow-
ing statement:-
This invention relates to the grates of gas producing apparatus and more
particularly to those of the type of gas producer. described in the Specification
of Letters Patent No. 7467 of 1893.
In gas producing where a considerable amount of steam is employed which is
necessary where ammonia recovery is desired, blockage is liable to occur owing
to a tendency of the fine dust from the ashes to cake on the bars of the grate.
This invention provides means whereby such blockage can be removed without
interfering with the operations going on in the producer and without the neces-
sity for opening the producer by the removal of manhole covers, or the like, as
hitherto has been necessary.
According to this invention a hammer, or a series of hammers is manipulated
(which can be done by a lever outside the producer) so that sufficient movement
is given to the bars to break up and dislodge any caked material.
The accompanying drawing represents an arrangement in accordance with this
invention Figure 1 being a transverse vertical section and Figure 2 a longitudinal
vertical section.
The bars A of the grate are connected so as to form grids which are inclined
to each and constitute a grate of inverted V form. The upper edges of the said
grids lie against the bearing B in which the spindle C, carrying the hammer, or
hammers, D, moves, and they are held in position, and the space between them
covered, by a head-piece E which forms the uppermost portion of the inverted
V grate. This head-piece E also serves to limit the movement when the grids
are struck. The lower edges of the grids each rest in a groove F, so as to allow
of the necessary movement. The hammer, or hammers, D), is, or are, preferably
operated by means of a lever G, secured to the spindle C so that blows can be
given to the tops of the grids on either, side, as desired.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed, we declare that what
we claim is :-
1. In gas producers a grate mounted so as to be capable of movement, and a
hammer, or hammers, and means for operating it, or them, from outside the
furnace so as to strike the grate, substantially as hereinbefore described.
2. In gas producers a grate formed of grids arranged in inverted V form, bear-
ings for the lower edges of the grids and a bearing for the upper edges of the
grids and for a spindle provided, inside the furnace, with a hammer, or hammers,
and, outside the furnace with means for operating the spindle and hammer, or
hammers, and a head-piece covering the space between the grids substantially as
herein before described.
D. 1991, dow of May 1900
JOHNSONS & WILLCOX,
47, Lincolns Inn Fields, London, W.C., Agents.