Improvements in and relating to the Stoppers used in Gas Retorts.
Year: 1898

page_text: PROVISIONAL SPECIFICATION
t.
Improvements in and relating to the Stoppers used in Gas Retorts.
CAN'
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I WILLIAM FOSTER, of Bradley, House, Nelson, in the County of Lancaster,
Gas Engineer, do hereby declare the nature of this invention to be as follows:-
11 L
This invention relates to the stoppers-used- in inclined gas. retortsuthe "object
-being to enable such stoppers to be readily removed when desired; and to render
them more durable than those at present in use.
I make the stopper of two parts or pieces of cast iron hinged together, one part
being a cast plate of suitable form to support the coal or coke, the said plate being
provided with a bracket or brackets to or between-which-the second part can be
pivotted.
11.
This second part consists of-a shank or leg-of suitable elength and shape to
support the stopper in the required position in the retort the said leg or shank
being made near the pivot above named with an eye or loop so that a hook can
be inserted therein when it is desired to remove the stopper.
To facilitate such removal I run a rail rod or bar transversely in front of and
a little above the mouths of the retorts and I hang a pulley block upon this rail
or bar so that it can slide thereon and to this block I attach a hanging hook or
swivel.
I also provide a long rod or bar with a hook at one end, a crank or recess at a
suitable distance therefrom and a handle at the other end; and when it is desired
to remove a stopper I bring the movable pulley block in front of the mouth of
the retort and I fit the crank or recess in the hooked, rod or bar over the hanging
hook or swivel of the said block and by means of the handle I am able to engage
the hook at the end of the said rod or bar into. the eye or loop of the stopper
which can then be readily removed.
1
The handle of this hooked rod or bar is preferably made in the form of a loop
or eye or a special loop or eye may be provided near the handle end of the said
rod or bar and a hook is provided at the upper part of the incline or screen for
guiding away the coke, and when the stopper has been removed it is slung up
out of the way by engaging the loop at the handle end of the rod or bar beneath
the hook on the screen which thus supports the stopper at the other end of the
said rod or bar.
My improved stopper being made of cast iron and in two parts pivotted
together will be much more durable and easily removed than the stopper now
generally in use which is made of a wrought cranked rod or bar rivetted or
bolted at its ends to an iron plate.
GEO. DAVIES & SON,
Agents for the Applicant, 4, St. Ann's Square, Manchester.

page_text: Improvements in and relating to the Stoppers used in Gas Retorts,
I, WILLIAM FOSTER/of Bradley House, Nelson, in the County of Lancaster,
Gas 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 an improvement in the stoppers used in inclined gas
retorts with the object of enabling such stoppers to be readily removed when
desired, and to make them more durable than those at present in use...
警
In the accompanying sheet of drawings Fig. 1 shows a side view of so much
of a retort as is necessary to illustrate the application of my invention. Fig. 2
is a front view and Fig. 3 an end view of my improved stopper drawn to an
enlarged scale. Fig. 4 is a side view and Fig. 5 an edge view. of the shank or
leg for supporting and retaining said stopper in position in the retort., Fig. 6
is a side or end view of said stopper with the leg connected thereto.
In these views similar letters refer to similar parts.
According to my invention I make the stopper of two parts or pieces b and c
preferably of cast metal, and suitably formed to support the coal or coke. The
front surface or face of said stopper is provided with a lug or lugs d to which
the shank or leg is pivotted, said shank or leg being made of a suitable length
for supporting the stopper in the required position in a retort as a.
The leg has a loop or eye as f formed therein above the pivot hereinbefore
named so that a hook can be inserted therein when it is necessary to remove the
stopper. In order to facilitate the removal of the stopper when desired I fit a
rail, rod, or bar as y transversely in front of and a little above the mouths of
the retorts, and suspend therefrom a pulley block with_a hanging hook or
swivel so that said pulley block can slide on the rail g. I provide a long rod
or bar as having a hook k at one end and cranked as at a suitable distance
therefrom with a handle at the opposite end of said rod. In applying my
invention when it is desired to remove a stopper from a retort as a, I slide the
pulley block along the rail y until it is in front of the mouth of the retort.
I then place the cranked portion of the bar on the suspended hook and
by means of the handle the hook at the end of the said bar is caused to
engage in the eye or loop f in the leg c of the stopper.
The suspended hook acting as a fulcrum enables the stopper to be readily
removed.
The difference in heights of the mouths of the retorts can be compensated by an
additional length of chain as jª.
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:-
1. In gas retorts the use of stoppers that are formed in two parts consisting
of a plate as b that is provided with a lug or lugs d on the face thereof, to which
a shank or leg as is pivotted, said shank or leg having a loop or eye as f
formed thereon or therein all substantially as and for the purpose hereinbefore
described.
2. In gas retorts the combination with a stopper as hereinbefore described of

page_text: a rail as g a pulley block j with a hook suspended therefrom and a transverse
bar or rod as all substantially as and for the purpose herein named
Dated the 11th day of July 1899. .
GEO. DAVIES & SON,
Agents for the Applicant, 4, St. Ann's Square, Manchester.