Improvements in Surface Condensers and Coolers.
Year: 1896

page_text: Date of Application, 8th Feb., 1896-Accepted, 14th Mar., 1896
COMPLETE SPECIFICATION.
Improvements in Surface Condensers and Coolers.
We, EDWARD BONAR CAIRD, and THOMAS JAMES RAYNER, both of
777 Commercial Road, Limehouse, in the County of London, Engineers and
Copper Smiths, 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 relates to surface condensers and coolers of the kind in which the
steam or vapours to be condensed or the liquid to be cooled passes through a
number of pipe coils surrounded by water or other cooling medium.
The object of our invention is so to connect the coils to the supply and discharge
passages and so to join the casings containing the coils that access can readily be
got to all parts for inspection cleansing or repair, as we shall describe referring to
the accompanying drawings.
Fig. 1 is a vertical section and Fig. 2 is a plan of a combined condenser and
cooler according to our invention.
Fig. 3 is a section drawn to an enlarged scale, shewing the jointing of one of the
coils to a supply or discharge passage.
A' is a cylindrical vessel containing the condensing coils C and to this may be con-
nected by a flange joint a a similar vessel A containing the cooling coils C. It is
to be understood however that either of the vessels A¹ or A' with their respective
coils C1 and C2 may be used alone. At the top and the bottom of each vessel there
are plates B which are made with concentric ridges having inclined sides on which
are bosses b, one for each coil. Each boss is bored with a hole countersunk to form
a valve seat & and screw threaded internally, and into this is inserted the end of
the coil pipe c on which there is fixed a rounded collar c¹ which by means of a
nut embracing the pipe is clamped between the seat in the boss and a
corresponding countersink at the end of the nut ; so that a tight joint is made,
metal to metal; by unscrewing the nuts at the upper and lower ends of any
coil, the coil is free to be removed. In order to get access to the coils in A¹, the
flange joint at a is unbolted and also the flange joint at A, and then the casing A'
can be lifted off exposing all the outer coils in A¹.
So also by unbolting the flange joint A the casing A can be lifted off exposing
all the outer coils of the lower set. On removing one or more of the outer coils
thus exposed, access can be got to the next circle of coils, from which coils can be
removed to give access to the coils of the innermost circle. The casing being
charged with water or other cooling liquid which circulates through it, steam or
vapour entering at D becomes condensed as it passes through the upper coils C¹
and the water or liquid of condensation received in the space E passes down the
lower coils C becoming cooled and collecting in the space F at the bottom, whence
it may be led where required.
When condensation only without cooling is required the lower casing and coils
are dispensed with, and the space F takes the place of E.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. Apparatus for condensing or cooling or both, consisting of a number of pipe
coils concentrically arranged within a cylindrical casing containing water or other
cooling liquid, the coils being connected to rigid end plates, and the parts of the

page_text: casing, being jointed in such a manner that the whole can be readily taken apart,
substantially as described.
2. The construction of the joints connecting. the pipe coils to the ridge plates,
substantially as described with reference to Fig. 3.
Dated this 8th day of February 1896.
ABEL & IMRAY,
Agents for the Applicants..