Year: 1887

page_text: Date of Application, 12th Apr., 1887.
Specification Accepted, 13th May, 1887.
We HENRY COCKEY and FRANCIS CHRISTOPHER COCKEY, both of the Iron Works,
Frome, in the County of Somerset, Engineers, 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 has for its object the construction of that part of gas washers known
as the "overflows" whereby the liquid contained therein may be adjusted, and remain
at pleasure, at any convenient height, so that any suitable pressure may be maintained,
or altered as occasion may require.
In order that the invention may be easily understood drawings are attached hereto
of which the following is a description. Fig. 1 is a front elevation of the overflow or
apparatus to be attached to, and form part of the washer. Fig. 2 is a side elevation,
and Fig. 3 is a side sectional elevation of the same. In each of the Figs. similar
letters represent the same parts.
The invention consists of a cast iron box or chamber A provided with flanges B to
admit of its being bolted to any convenient exterior part of the washer. An opening
in the washer admits of communication with the interior C of the box. Cast on to the
bottom of the box there is a pipe D the lower end being connected with the run-off
pipe. Within the chamber C a stand pipe E is bolted to its bottom. The interior of
this stand pipe is bored parallel so as to admit of a hollow, turned, and packed
plunger, ram, or piston F closed at top, but capable of rising and falling within it,
and at the same time remaining water tight, the recess G being for the reception of
the packing. Near the top of the plunger there is a hole N that affords com-
munication between the interior of the chamber and the interior of the hollow plunger.
The top of the plunger is swivelled at H to a rod I which passes through a stuffing
box J attached to the top of the box or chamber. That part of the rod I that projects
above the stuffing box is screwed and works through a nut Q formed in the cross-
head K supported by pillars L L fixed to the top of the box. The upper extremity
of I is made square so as to be turned with a wrench, or is fitted with a handle M as
seen in the drawing.-0, 0, are sight holes fitted with glass plates to enable an observer
27

page_text: to see the height of the liquid in the chamber. The box has a hand-hole fitted with a
cover P.
It will be seen that as the liquid in the washer enters the box or chamber, its height
in the washer, and consequently the pressure under which the latter is worked will be
determined by the height of the bottom of the opening N, which may be adjusted by
turning the rod I by the handle M so as to raise or lower the plunger F until the
proper height is attained, when any surplus liquid will pass from the chamber through
the opening N into and down the hollow plunger F, and away through the pipe D to
the run-off pipe. By these means the liquid in the washer may be adjusted and
maintained at any desired level.
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,
The construction of gas washers having such "overflows" as are herein described
and shown on the drawings.