New or Improved Process for the Effective Removal of Noxious and other Vapours, and in Appliances for use in connection therewith.
Year: 1897

page_text: Date of Application, 18th Oct., 1897
Complete Specification Left, 18th July, 1898-Accepted, 18th Oct., 1898
New or Improved Process for the Effective Removal of Noxious and
other Vapours, and in Appliances for use in connection therewith.
We, JAMES RUDMAN and HENRY JAMES GILBERT RUDMAN, of River Street,
Bristol, Manufacturers, do hereby declare the nature of this invention to be as
follows;-
-
Our invention relates to a new or improved process for the effective treatment
and removal of noxious and other vapours, arising from factories where offensive
trades are carried on, and consists in collecting the fumes in a cowl or inverted
funnel, which is suspended so that it may connect with a tube of considerable size;
this tube ascends for a suitable distance and is then curved until it acquires a down-
ward direction, and at a convenient position below the curved part, a steam jet is
inserted, which creates a vacuum in the ascending tube, into which the fumes to
be treated are consequently drawn; the tube is conveyed towards a drain or other
outlet, and at any convenient part before it arrives at the outlet, a spray of cold
water is injected into the tube, which condenses the steam, and any properties con-
tained in the steam mix with the water and are conveyed into the drain or outlet.
To carry our invention into effect, we provide a cover or funnel, which is sus-
pended over the vessel in which material is being treated, in such a manner that
the fumes can pass into an external tube of considerable size, which extends up-
wards for a little distance, when it is curved until it assumes a downward direction :
A steam pipe from a boiler is carried within the tube at a short distance below the
bend, and turned vertically downwards, by this means a jet of steam is forced into
the tube, and a vacuum created, and the fumes from the vessel in which the
material is being treated are withdrawn, and the steam mixing with the fumes
destroys the noxious properties.
The down tube is continued to the outlet, and at any suitable position, a stream
of cold water is injected through a rose or nozzle perforated with fine holes; this
being inserted in the tube, condenses the vapour, and the water produced by the
condensation passes to the drain or other suitable outlet.
Dated this 15th day of October 1897
New or Improved Process for the Effective Removal of Noxious and
other Vapours, and in Appliances for use in connection therewith.
We, JAMES RUDMAN and HENRY JAMES GILBERT RUDMAN, both of River Street,
Bristol, Manufacturers, do hereby declare the nature of this invention and in what
[Price Sd.]

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
Our invention relates to a new or improved process for dealing with the fumes
nid noxious vapours which arise during the boiling or preparation of offensive
materials, such as varnishes, chemical substances, and the like, and consists in
collecting the fumes by means of steam injection in pipes, which forms a vacuumi
and causes the vapour to rush into the pipes and mix with the steam, the com-
pound being afterwards condensed in passing through the tubes, the condensation
may be assisted by the action of cold water on the compound direct, or on the pipes
through which it passes, so that at the outlet, the vapour is rendered practically
harmless.
Our invention and the means by which it is put into operation will be further
described in connection with the accompanying sheet of drawings, in which
Figure shows a varnish pot on the fire with the various appliances in position
for treating the fumes by steam and condensation before passing the effluent into
drain pipes for conveyance to an ordinary sewer or other outlet; Fig. 2 shows
another method of dealing with the steam charged fumes, where the sanitary
authorities will not permit any effluent from factories to pass into the sewers.
The drawings and description of the process show the invention in operation
with the fumes from boiling varnish, but the necessary modifications for adapting
the appliances to other fumes or vapour will be obvious.
A shows any ordinary stove or grate for heating the varnish pot B; C is a cap of
nay suitable material to cover the pot, with a cylindrical opening for the funes
to pass through, a sleeve d slides up and down to connect the opening with a
vertical tube D, this tube is elbow shaped, and suspended by a flange, to swing
away from the pot; the tube D is continued to E as shown, and in any suitable
position, a steam pipe G is inserted; the steam from an ordinary boiler supplying
$1 jet which forms a vacuum, so that the fumes from the pot are drawn into the
tube and mix with the steam, the pressure forcing the steam and vapour through
the pipe and outlet f into an earthenware or other drain pipe 11 laid in the
ground, on the way to the common sewer or other outlet: the vapour and steam
in passing through the pipe F will have been very considerably condensed, the
process is however further assisted by the insertion of a pipe through which a
Stream of cold water is distributed by a jet d in the drain pipe: If deemed necessary.
precipitating tank may be placed near the junction with the sewer, and by
re-agents or the like, any by products contained in the fumes will be collected.
Where an objection is made to the effluent passing into the sewers, an alternative
method, as shown in Fig. 2 is adopted, the steam charged fumes in the tube E are
forced into the tube and passed to a coiled worm K placed in a cistern of cold
water, which condenses the vapour, and it flows through the outlet M. into another
cistern N which is covered at the top, and any vapour still remaining is conveyed
by an outlet pipe O into a chimney shaft, or the pipe may be extended to find an
outlet in any suitable position, like a chimney; the tap is for emptying the
eistern when it is necessary.
The outlet pipe 0, may if preferred be carried back to the fire box A and the
fumes consumed.
Where the odours from the boiling materials are not very offensive. the coil K
may be dispensed with, and the pipe F pass direct to the tank N.
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. The process of collecting the fumes or noxious vapours arising in the manu-
facture of varnish and other chemical materials, by injecting steain in a tube or
other receptacle to form a vacuum, causing the vapour to mix with the steam, and
then condensing the product, either with or without the addition of cold water

page_text: in spray or surrounding the coil, for the purpose of removing the noxious propertres
of the vapours, and passing the residue into the sewers or the air in a harmless
condition, substantially as herein described and set forth.
2. In connection with the herein described process of treating noxious vapours,
the arrangement and combination of the various appliances as shown, substantially
as and for the purposes set forth.
That this Tith day of July 1898