Improvements in Evaporative Condensers.
Year: 1892

page_text: Date of Application, 14th Nov., 1892
Complete Specification Left, 25th Feb., 1893-Accepted, 29th Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in Evaporative Condensers.
We, JOHN WHYTE, HENRY WHYTE, and ARTHUR WILLIAM COOPER, all of
the firm of J. & H. Whyte and Cooper, Brittania Engine and Boiler Works, East
Dock Street, Dundee, in the County of Forfar, N.B. Engineers, and Boilers Makers,
do hereby declare the nature of this invention to be as follows:-
-
This invention comprises various improvements in evaporative condensers,
including improved methods of applying the cooling liquid, such as water, and
improvements in the construction of the feed and receiving tanks, the objects being
to make more effective use of the cooling liquid, to construct the receiving tank
more cheaply than hitherto, to give greater facilities for repair, and to enable the
condenser to be erected and placed in position expeditiously.
In carrying out our invention we improve the construction of the feed trough or
tank; which in section is usually a segment of a circle, by the addition of a
longitudinal rib at its lowest point, such rib resting on cast iron saddle brackets, to
be afterwards more particularly described. By chipping or filing the lower edge
of the rib, the feed trough can be quickly levelled, even should the condenser pipes
be of unequal length. In our evaporative condenser, each pair of pipes are con-
nected together at their tops by a semicircular bend, the aforesaid saddle brackets
which support the feed trough being also utilized to lead the liquid after it passes
from the said feed trough-in a thin stream to such semicircular bends, and thence
down the pipes. The said saddle brackets are of novel construction, each being
provided with a recessed partition at their centre, the aforesaid rib on the feed
trough resting in such recess. By this arrangement each saddle bracket is
converted into two distinct channels, each channel being served by its own
aperture. The sides of these brackets are hollowed out to receive the bottom of
the feed trough.
The receiving tank is composed of two or more cast iron brackets in combination
with cast iron, wrought iron or steel plates, each forming in cross-section a segment
of a circle, or if otherwise preferred a section approximating to a rectangle.
When the condenser is small the two end brackets are alone used to form the
closed ends of the tank, and also to support the horizontal mains. In condensers
of larger size, intermediate brackets have to be introduced, the tops of such
brackets supporting the horizontal mains, with provision for the circulation of the
liquid. The bent plates are laid on and riveted, bolted, rusted or otherwise fixed
to the flanges projecting from these brackets, such flanges being cast to conform to
the outline of the cross-section of the plates. If at any time these plates get worn
out, others can be fitted with little trouble. The brackets are also provided with
legs which rest on beams. In the case where the tank is used as a roof, or a part
thereof, the edges of such tanks are preferably connected by bent plates or like
castings, their convexity being uppermost.
Dated this 11th day of November 1892.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicants.

page_text: COMPLETE SPECIFICATION.
Improvements in Evaporative Condensers.
We, JOHN WHYTE, HENRY WHYTE, and ARTHUR WILLIAM COOPER, all of
the firm of J. & H. Whyte and Cooper, Britannia Engine and Boiler Works, East
Dock Street, Dundee, in the County of Forfar, N.B. Engineers and Boiler Makers,
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 comprises various improvements in evaporative condensers,
including improved methods of applying the cooling liquid such as water, and
improvements in the construction of the feed and receiving tanks, the objects being
to make more effective use of the cooling liquid, to construct the receiving tank
more cheaply than hitherto, to give greater facilities for repair, and to enable the
condenser to be erected and placed in position expeditiously.
The accompanying sheet of explanatory drawings illustrates the method of
carrying out our invention.
Figure 1. represents a sectional elevation of the evaporative condenser, Figure 2.
a part side elevation, Figure 3. a cross-section of the feed trough or tank, together
with the saddle brackets, and
Figures 4. and 5. a plan and a front view respectively of the saddle bracket.
In these drawings the same reference letters and numerals are used to mark the
same or like parts wherever they are repeated.
In carryings out our invention we improve the construction of the feed trough or
tank 6; which in section is usually a segment of a circle, by the addition of a
longitudinal rib 7. at its lowest point, such rib resting on cast iron saddle
brackets 8, to be afterwards more particularly described. By chipping or filing the
lower edge of the rib, the feed trough can be quickly levelled, even should the
condenser pipes 9. be of unequal length.
In our evaporative condenser, each pair of pipes 9. are connected together at
their tops by a semicircular bend 10, the aforesaid saddle brackets 8, which support
the feed trough being also utilized to lead the liquid-after it passes from the said
feed trough-in a thin stream to such semicircular bends, and thence down the
pipes. The said saddle brackets 8, are of novel construction, each being provided
with a recessed partition 11. at their centre, the aforesaid rib 7. on the feed trough
resting on such recess, as shewn. By this arrangement each saddle bracket is
converted into two distinct channels A. and B, each channel being served by its
own aperture 12. The sides of these brackets are hollowed out at 13. to receive
the bottom of the feed trough.
The receiving tank 14. is composed of two or more cast iron brackets 15. in
combination with cast iron, wrought iron, or steel plates 16, each forming in cross-
section a segment of a circle, or if otherwise preferred a section approximating to a
rectangle.
When the condenser is small the two end brackets may be alone used to form the
closed ends of the tank, and also to support the horizontal mains 17, although in the
illustration such brackets are only used to support the mains, the,ends of the tank
being closed by separate plates 18. In condensers of larger size intermediate
brackets have to be introduced, as illustrated, the tops of such brackets supporting
the horizontal mains 17, and provided with apertures 19. for the circulation or
passage of the cooling liquid from end to end of tank. The bent plates 16. are laid
on and riveted, bolted, rusted or otherwise fixed to the flanges 20. projecting from
these brackets, such flanges being cast to conform to the outline of the cross-section
of the plates. If at any time these plates get worn out, others can be fitted with
little trouble. The brackets are also provided with legs 21. which rest on beams 22.
In the case where the tank is used as a roof, or a part thereof, the edges of such

page_text: tanks are preferably connected by bent plates 23, or like castings, their convexity
being uppermost.
Our evaporative condenser operates in the following manner: —
The steam or other fluid which is to be condensed flows through the large to the
small main 17, along the connecting pipes 9. and 10, from whence it returns to the
hot well as liquid. The cooling liquid in the tank 6. falls through the apertures 12.
on to the saddle brackets 8. from whence it flows in a thin stream down the
What remains of the liquid may
pipes 10. and 9. and into the receiving tank 14.
then be returned to the tank 6, or otherwise it may be allowed to flow into an
overflow pipe.
Having now particularly described and ascertained the nature of our said inven-
tion, and in what manner the same is or may be performed, we declare that what
we claim is :-
In evaporative condensers :-
(1) The general construction, combination and arrangement of parts, substantially
as and for the purposes herein set forth, together with any mere modification or
modifications thereof.
(2) The construction, combination and arrangement of the trough or tank 6, the
saddles 8, and the pipes 9. and 10, substantially as described.
(3) The construction, combination and arrangement of the tank plates 16,
brackets 15, horizontal mains 17, legs 21, and plates 23, substantially as described.
(4) The use of the plates 23.
Dated this 24th day of February 1893.
GEO. C. DOUGLAS & Co.,
41, Reform Street, Dundee, Agents for Applicants.