Improvements in Stills or Apparatus for Submitting Liquids to the Action of Vapours or Gases.
Year: 1889

page_text: COMPLETE SPECIFICATION.
Improvements in Stills or Apparatus for Submitting Liquids to the
Action of Vapours or Gases.
I, WILLIAM THOMAS WALKER of Bishopswood Road, Highgate in the County of
Middlesex, Gentleman 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, that is to say :-
My Invention has for its object to provide stills or apparatus for submitting liquids
to the action of vapours or gases with means whereby the vapours or gases and the
liquids are caused, in a given sized apparatus to have a much larger or more extended
surface of contact than in such stills or apparatus as hitherto constructed, a further
advantage being that the rush or pulsation of the vapour or gas hitherto experienced is
obviated.
My Invention relates to those stills or apparatus in which the liquids are passed into
trays or shallow chambers the vapour or gas being admitted thereto under a hood from
which it passes into the liquid.
I will describe my Invention with reference to the accompanying drawings which
shew enough of a still or like apparatus to illustrate the application of my Invention
thereto Figure 1 being a plan of the interior of one of the tiers or trays and Figures 2
and 3 being half sections respectively taken on the line 1. 2 and the line 3. 4 of
Figure 1.
According to my Invention I substitute for the hood hitherto used an oblong or
inverted trough like chamber A extending across the lower surface or floor of each of
the trays B of which the still is formed the said oblong or trough like chamber A
receiving the vapour or gas from an inlet C therefor which is preferably lengthened
in plan (instead of being circular) so as to follow somewhat the shape of the inverted
oblong or trough like chamber A which is closed at its ends a a and has communicating
with it a number of inverted trough like branches A2 A2 also closed at their ends a² a²
these branches extending out at right angles (or approximately so) from the inverted
oblong or trough-like chamber A towards the periphery or sides of the tray B. These
branches serve to distribute very effectually the vapours or gases through and over
the liquid on the floor of the tray.
The lower edges of any desired parts of the chamber A and branches A2 are formed
with serrations or teeth d or perforations or the like constituting passage ways for the
vapour or gas to pass through in contact with the liquid all over the floor of the tray
the said liquid flowing from the inlet E to the outlet F as indicated by the arrows.
I generally prefer to provide only the branches A² with such serrations or the like.
Between the branches A and extending upwards from the floor of the tray Bare
walls or plates G which form on either side of the inverted oblong or trough-like
chamber A and along the sides of the branches A³ circuitous passages for the liquid
under treatment.
The still or apparatus may consist of any number of these chambers arranged one
above the other with communicating passages for the liquids and vapours or gases
from chamber to chamber as is customary and as indicated in the drawings. The
chambers A with the branches A may be raised and lowered by the central vertical
shaft after the manner described in the Specification of Letters Patent granted to me
as of the 6th December 1887 No. 16806.
Having now particularly described and ascertained the nature of my said Inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
:-
First In stills or apparatus for submitting liquids to the action of vapours or
gases an inverted oblong or trough liko alambor with right angled for anproximately

page_text: right angled) branches with serrations or perforations or passage ways at their
lower parts substantially as herein before described and shewn in the accompanying
drawings.
"
1
Second-In stills or apparatus for submitting liquids to the action of vapours or
gases an inverted oblong or trough-like chamber with right angled (or approximately
right angled) branches with serrations, perforations or passage ways at their lower
parts and with walls or plates for directing the liquids along the said branches
substantially as hereinbefore described and shewn in the accompanying drawings.
Dated this 19th day of November 1889.