Apparatus for Moistening and Supplying Fresh Air to Factories.
Year: 1890

page_text: Date of Application, 23rd June, 1890
Complete Specification Left, 20th Mar. 1891-Accepted, 25th Apr., 1891
PROVISIONAL SPECIFICATION.
Apparatus for Moistening and Supplying Fresh Air to Factories.
WILLIAM MULHOLLAND PORTER, of 175, Agnes Street, Belfast, Ireland,
Engineer, and ABRAHAM LIGGATE LEWIS, of 24, Oldpark Crescent, Belfast,
Ireland, Manager, do hereby declare the nature of this invention to be as
follows:-
This apparatus is designed to utilize the jets of steam employed for moistening
the air of weaving sheds and other factories to introduce fresh air along with the
steam so as to increase the salubrity of the room.
The apparatus consists of one or more nozzles for jets of steam placed at the
bottom of a tube which is open to the outer air at its upper end.
At the bottom of this inlet tube is a case containing the nozzles for the jets of
steam opposite to which are delivery branches or tubes in which are carried by
suitable radial webs from the outer tube opposite each jet or nozzle a trumpet
shaped tube which receives the jet of steam and along with it a quantity of fresh
air which is caused to rush through the trumpet mouth. This trumpet mouthed
tube is expanded at its discharge end and opposite to it and concentric with it is
fixed a cone the apex being within the discharge end of the expanded tube. The
cone is surrounded by a thin ring rather larger at its smallest diameter than the
discharge end of the expanded tube. The current of air and steam rushes through
the space between the thin ring and the cone. There are thus three places at which
the fresh air in the outer tube is in contact with the current caused by the
jet of steam and so a strong current of fresh air charged with moisture is
introduced.
To distribute this current of moist air diverging divisions are placed in the
discharge branch or tube surrounding and opposite to each jet.
The tube communicating with the outer air is fitted with a throttle valve
controllable by the attendants.
This apparatus can be readily attached to the ordinary steam pipes employed to
discharge jets of steam into the room to obtain the humidity required especially in
factories where linen goods are woven.
Dated this 21st day of June 1890.
WILLIAM MULHOLLAND PORTER.
ABRAHAM LIGGATE LEWIS.
COMPLETE SPECIFICATION.
Apparatus for Moistening and Supplying Fresh Air to Factories.
WILLIAM MULHOLLAND PORTER, of 175, Agnes Street, Belfast, Ireland,
Engineer, and ABRAHAM LIGGATE LEWIS, of 24, Oldpark Crescent, Belfast,
Ireland, Manager, 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 apparatus is designed to utilize the jets of steam employed for moistening the
air of weaving sheds and other factories to introduce fresh air along with the steam
so as to increase the salubrity of the room.
The apparatus is fully illustrated in the drawing herewith in which and in the
following description the same letters and figures of reference always apply to the
same or like parts.
Fig. 1 is a general side view of the apparatus.

page_text: .
Fig. 2 is a plan or top view with parts in section.
Fig. 3 is a vertical section of a part of the apparatus on a larger scale.
Fig. 4 is an end view of Fig. 3 partly in section.
The apparatus consists of one or more nozzles (a) for jets of steam placed at the
bottom of a tube (4) which is open to the outer air at its upper end.
At the bottom of this tube (b) is a case (¹) containing the nozzles (a) for the
jets of steam the nozzles (a) being each controlled by a cock (a). Opposite
the nozzles (a) are delivery branches or tubes (c) in which are carried by suitable
radial webs (c) from the outer tube (c) opposite to each jet or nozzle is a trumpet
shaped tube (d) which receives the jet of steam and along with it a quantity of
fresh air which is caused to rush through the trumpet mouthed tube (d) behind
the trumpet mouthed tube (d) is a second trumpet mouthed tube (d) which is
expanded at its discharge end and opposite to it and concentric with it is
fixed a cone (e) the apex being within the discharge end of the expanded
tube (d').
The cone (e) is surrounded by a thin ring (e) rather larger at its smallest
diameter than the discharge end of the expanded tube (d').
The current of air and steam as indicated by the arrows rushes through the
space between the thin rings (e) and the cone (e) there are thus a number
of places at which the fresh air in the outer tube (c) is in contact with the current
caused by the jet of steam and so a strong current of fresh air charged with moisture
is introduced.
To distribute this current of moist air diverging divisions (f) are placed in the
discharge branch or tube (2) which is open at the sides.
The tube () communicating with the outer air is fitted with a throttle valve (62)
controllable by the attendant and to admit of access to the taps (a¹) behind the
nozzles (a) a door (63) is fitted to the base of the tube (b).
This apparatus can be readily attached to the ordinary steam pipes employed to
discharge jets of steam into the rooms to obtain the humidity required especially in
factories where linen goods are woven.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is to be performed, we declare that what
we claim is:-
The apparatus herein described and illustrated consisting of tube (d d¹) cones (e)
rings (e) in discharge pipes (2) with diverging divisions (*) all in combination for
the purpose of utilising jets of steam employed for moistening the air of factories to
introduce fresh air along with the steam.
Dated this 19th day of March.1891.
WILLIAM MULHOLLAND PORTER.
ABRAHAM LIGGATE LEWIS.