Improvements in Evaporative Surface Condensers.
Year: 1896

page_text: Date of Application, 22nd July, 1896
Complete Specification Left, 6th Feb., 1897-Accepted, 3rd Apr., 1897
We, JOHN GEORGE CHAMBERLAIN of Neptune Works, Tiptou, in the County
of Stafford of the Firm of Joseph Wright & Company, Engineer, and JOHN
WEDDELL, also of Tipton, Engineer do hereby declare the nature of this invention
to be as follows:-
Our invention is applicable to the class of condensers in which exhaust steam
from an engine is passed into a series of pipes from which heat is extracted by
means of wetting their outer surfaces and causing air to circulate around them
either by mere exposure to the atmosphere or by means of a fan or air propellor
the apparatus in this case being enclosed in a casing. We conduct the exhaust
steam to an upper central horizontal main on each side of which are horizontal
service branches and on each side of each branch elbow pipes lead to vertical
cooling pipes of suitable length.
At their lower end these are again connected direct into horizontal collecting
pipes leading to a horizontal central collecting main from which the condensed
water is drawn or pumped by a suitable air pump.
In order to wet the pipes we form a trough preferably as part of the upper
horizontal service branches and run the water for cooling into it whence it
overflows on each side and trickles down the elbows and cooling pipes where the
greater part is evaporated.
In order to catch such of the water as may drop from the service pipes we fix
trays immediately below them from which the water flows into annular distributors
in the form of small open bottom collar tundishes from which it trickles down in
contact with the surface of the said pipes.
Below the apparatus and preferably supporting it we fix a suitable tank as is
usual with this form of condenser whence the unevaporated water can be pumped
into the pipe leading to the distributors for re-use.
Dated this 21st day of July 1896
EDGA CONISTON MILLS,
Agent to the Applicants.
Improvements in Evaporative Surface Condensers.
We, JOHN GEORGE CHAMBERLAIN of Neptune Works, Tipton, in the County
of Stafford of the Firm of Joseph Wright and Company, Engineer, and JOHN
WEDDELL also of Tipton Engineer, 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:-
Our invention is applicable to the class of condeusers in which exhaust steam
from an engine is passed into a series of pipes from which heat is extracted by

page_text: means of wetting their outer surfaces and causing air to circulate around them
either by mere exposure to the atmosphere or by means of a fan or an air propellor
the apparatus in this case beiug enclosed in a casing.
Fig. 1 is an elevation of one section of the apparatus.
Fig. 2 is a cross section of the same.
Figs. 3 and 4 shew enlargements of the same views.
Fig. 5 is a sectional plan of one of the cooling pipes shewing one of the
distributors.
In all views the same letters of reference refer to the same parts.
A is the main steam exhaust pipe conveying steam from an engine to the
condenser. It may be of any desired length and is preferably made in short lengths
to provide for extension. At suitable intervals it is provided with wide-mouthed
service branches a which may be on both sides as shewn or on one side only
according to circumstances. These brauches lead to the service pipes B which are
provided at frequent intervals with side branches 6 formed as or having attached
to them suitable elbow pipes. To each elbow, vertical cooling pipes C are attached
of suitable length.
At their lower ends these pipes are again connected into the horizontal collecting
pipes D which are provided with branches d for the purpose. The pipes Dare
connected to the horizontal central collecting main E. From this main the
condensed water is drawn or pumped by a suitable air pump or barometric fall.
In order to moisten or wet the pipes we form a trough F preferably as part of the
service pipes B. G is the water supply main carried preferably as shewn on the pipe A
by brackets g and having side branches H leading to each trough F and discharging
therein hy the months A. The water overflows the sides of the trough and trickles
down the sides of pipe B and elbows and cooling pipes C.
In order to catch such of the water as may drop from the underside of the
service pipes B we fix trays K immediately below them from which the water flows
into annular distributors L which are in the form of small open bottom collar
tundishes having small distance pieces only in contnet with the pipe and from
which the water trickles down in contact with the surface of the pipes. These
distributors are as shewn made in two halves and bolted together by the bolts / as
shewn in Fig. 4. The extension being for the purpose of catching the water
from the tray K which is provided with suitable lips for the purpose.
M are the carriers sustaining the main pipe A.
N are the girders or beams across the tank T and sustaining the whole apparatus.
Into this tank the residue of unevaporated water falls and can be pumped for re-use
into the pipe G whence it flows to the distributors.
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:
1. The upper central horizontal steam main having horizontal branches on each
side and on each side of each branch elbow pipes leading to the vertical cooling
pipes substantially as and for the purposes hereinbefore described and illustrated
in the accompanying drawings.
2. The central horizontal collecting main for the condensed water having
horizontal branch pipes on each side, oue for each row of cooling pipes and from
which the condensed water is drawn by an air pump substantially as and for the
purposes hereinbefore described and illustrated in the accompanying drawings.
3. The water trough formed with or placed over the steam service branches
substantially as and for the purposes hereinhefore described and illustrated in the
accompanying drawings.
4. The water catchment trays fixed immediately below the steam branch pipes
substantially as and for the purposes hereinbefore described and illustrated in the
accompanying drawings.
5. The annular distributors formed as open bottom collar tundishes having small

page_text: distance pieces only in contact with the pipe and constructed in two halves for
convenience of erection substantially as and for the purposes herein before described
and illustrated in the accompanying drawings.
6. The central water main placed over the steam main and having branch pipes
feeding the water troughs substantially as and for the purposes hereinbefore
described and illustrated in the accompanying drawings.
Dated this 4th day of February 1897
EDGA CONISTON MILLS,
Agent to the Applicants.