IMPROVEMENTS IN ADJUSTABLE DIP PIPES USED IN THE MANUFACTURE OF GAS
Year: 1884

page_text: PROVISIONAL SPECIFICATION.
I, JAMES CORT of Lower Bland Street, in the County of Surrey, Engineer do
hereby declare the nature of my said invention for "IMPROVEMENTS IN ADJUSTABLE
DIP PIPES USED IN THE MANUFACTURE OF GAS" to be as follows:-
This invention has for its object the construction of apparatus whereby the dip-
pipes attached to the hydraulic main may be made adjustable, and so relieve the
retorts from the pressure of the gas when in use, and to secure a perfect seal and
prevent any return of gas, or entrance of air when the retorts are being charged, or
not in action.
The invention consists of a socket or chamber having a flange both at its top
and bottom, the top one being fastened to the lower part of the ascension pipe, and
the bottom being fixed to the top of the hydraulic main. Within this Chamber
there is a pipe which enters tho hydraulic main and forms a continuation of the
descending leg of the ascension pipe and reaches to near the level of the liquid in
the bydraulic main, Concentric with and outside the aforesaid pipe there is a dip-
pipe so arranged that the bottom of it is capable of being raised to nearly the same
level as the bottom of the inner pipe, or depressed so as to enter the liquid in the
hydraulic and form a perfect seal. The upper part of the dip-pipe has a grooved
collar, the lower edge of which is V or semi-circular shaped, so that upon its resting
on an inner projecting seating of the chamber a gas-tight joint is produced. The
dip-pipe is also provided with an adjustablo collar having a V or semi-circular
shaped edge, which on being brought up and in contact with the edge of the
chamber within the hydraulic main forms a gas-tight joint. For the purpose of
maintaining it in this condition the chamber is provided with an opening through
which should it be necessary the seating of the chamber or V edge of the dip-pipe
may be reground on its seating or be cleaned from any deposit that may accumulate
thereon. The dip-pipe is supported by a forked arm which has a stud at each end
that fits into the grooved collar before mentioned. The arm is made in two parts,
one part within the chamber, and the other part, which is either straight or bent
extending some distance on the outside, the connecting piece of the two serving
as a pivot upon which the arm or lever turns. That part of the arm which is
outside the chamber carries a slotted weight capable of sliding upon the said arm,

page_text: and the pivot, which is packed or otherwise, is kept in its proper position by the
point of a set screw which is made to bear against it.
•
The action of the apparatus is as follows:-Liquid being admitted to the
hydraulic main to a convenient height below the fixed pipe, the dip-pipe is allowed
to descend until it enters the liquid and forms a sufficient seal. Upon the retort
being charged and closed, the lever is pulled down by means of a rod or chain
attached to it, when the dip-pipe will be drawn up and a free passage for the gas
from the fixed pipe into the hydraulic main will result. When the retort is about
to be drawn, the lever will be released, the dip-pipe will descend into the liquid
sufficiently to form a suitable seal, and the operation of discharging may then bo
performed with perfect security.

page_text: COMPLETE SPECIFICATION.
I, JAMES CORT of Lower Bland Street, in the County of Surrey, Engineer, do
hereby declare the nature of my invention for "IMPROVEMENTS IN ADJUSTABLE
DIP-PIPES USED IN THE MANUFACTURE OF GAS" and in what manner the same is
to be performed, to be particularly described and ascertained in and by tho
following statement reference being had to the accompanying drawings, and to the
letters and figures marked thereon, that is to say :—
This invention has for its object the construction of apparatus whereby the dip-
pipes attached to the hydraulic main may be mado adjustable, and so relieve tho
retorts from the pressure of the gas when in use, and to secure a perfect seal and
prevent any return of gas, or entrance of air when the retorts are being charged, or
not in action.
In order that the invention may be more easily understood the following
drawings are attached hereto.-Fig 1 is a plan at U, V Fig 2. Fig 2 a sectional
elevation, and Fig 3 an elevation of the arrangement of the set screw Q and bar P
in section drawn at right angles to Fig 2.
The invention consists of a socket or chamber A having a flange B both at its
top and bottom, the top one being fastened to the lower part or socket for the
reception of the ascension pipe, and the bottom one being fixed to the top of the
hydraulic main. Within this chamber there is a pipe D which enters the hydraulic
main and forms a continuation of the descending leg of the ascension pipo and
reaches to near the level of the liquid in the hydraulic main. Concentric with
and outside the aforesaid pipe thero is a dip-pipe E so arranged that the bottom
of it is capable of being raised to nearly the same level as the bottom of the inner
pipe D, or depressed so as to enter the liquid in the hydraulic and form a perfect
scal. The upper part of the dip-pipo E has a grooved collar F, the lower edge G
of which is V, semi-circular, or otherwise suitably shaped, so that upon its
resting on an inner projecting scating H of the chamber a gas-tight joint is
produced. The dip-pipe is also provided with an adjustable collar I having a V or
semi-circular shaped odge, which on being brought up and in contact with the
edge J of the chamber A within the hydraulic main forms a gas-tight joint. For
the purpose of maintaining them in this condition the chamber is provided with
an opening K through which should it be necessary the seating of the chamber
or Vedge of the dip-pipe may be reground on its seating, or be cleaned from any
deposit that may accumulate thereon.-The dip-pipe E is supported by a forked
arm L which has a stud M at each end that fits into the grooved collar bofore
mentioned. The arm is made in two parts, one part within the chamber, and the
other part, which is either straight or bent extending some distance on the outside,
the connecting pieco N of the two serving as a pivot upon which the arm or lever
turns. That part of the arm which is outside the chamber carries a slotted
weight O, capable of sliding upon the said arm P, and the pivot N, which is packed
or otherwise, is kept in its proper position by the point of a set screw Q which is
made to boar against it.-R represents a part of the top of the hydraulic main in
Bection,

page_text: The action of the apparatus is as follows. Liquid being admitted to the
hydraulic to a convenient height below the fixed pipo; the dip-pipe E is allowed
to descend until it enters the liquid and forms a sufficient seal. Upon the retort
being charged and closed, the lever P is pulled down by means of a rod or chain
attached to it, when the dip-pipe E will be drawn up and a free passage for the
gas from the fixed pipe D into the hydraulic will result. When the retort is about
to be drawn, the lever will be released, the dip-pipe E will descend into the liquid
sufficiently to form a suitable seal, and the operation of discharging may then be
performed with perfect security.
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. The construction of a chamber A through which the dip-pipe is raised or
lowered, as herein described and shown on the drawings.
2. The construction of adjustable dip-pipes E, each having a V, semi-circular,
or other suitably shaped edge G which when resting on the seat H in the
chamber A forms a gas-tight joint,-ns herein described and shown on the drawings.
3. The construction of dip-pipes with a grooved collar F as horein described
and shown on the drawings.