Improvements in Water Heaters and Economizers.
Year: 1892

page_text: Date of Application, 28th May, 1892
Complete Specification Left, 7th July, 1892-Accepted, 27th Aug., 1892
PROVISIONAL SPECIFICATION.
Improvements in Water Heaters and Economizers.
I JAMES ADAIR MUIRHEAD Engineer Tadcaster Yorkshire, do hereby declare
the nature of this invention to be as follows:-
The heater I propose will be that I have a group of tubes, or a series of groups
of tubes made of copper or other well known materials which may be fixed in any
flue or gas or furnace chamber, either vertical or horizontal, but preferably
vertical. On the top and bottom of each group of tubes is a perforated plate into
which the tubes fit. Over the ends of tubes, on top and bottom fit a covered
chamber with the necessary appliances for getting to the tubes and having on top
a novel expansion tube with provision for thermometer & safety valve alarm and
on bottom with expansion joint & perforated delivery or inlet tube. On the side
of each section is a tee bar or rail which fits into a corresponding slide or recess
which enables any one of the sections to be drawn from the flues or furnace at any
time, without stoppage to works which cannot be done at the present time.
Dated this 27th day of May 1892.
JAMES ADAIR MUIRHEAD.
COMPLETE SPECIFICATION.
Improvements in Water Heaters and Economizers.
I JAMES ADAIR MUIRHEAD Engineer of Tadcaster Yorkshire, 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:-
My invention refers to that class of water heaters in which the waste heat from
the flues of steam boilers or other furnaces is employed in heating water for
feeding steam boilers, for brewing and other purposes.
A water heater or economiser constructed in accordance with my invention,
consists of a group or a series of groups of tubes made of copper or other suitable
material. The upper and lower ends of each group of tubes fit into the perforated
plates of separate boxes of D or other suitable section. The flat perforated plate
is formed in a separate piece from the rest of the box, the box and the plate being
connected together by means of flanges, or angle irons, or both, and bolts or
With this arrangement the box can be detached from the perforated plate,
so as to get to the tubes for cleaning and repairs.
screws.
.
The pipes leading to and from the boxes are connected to the latter by means of
expansion tubes, or more properly expansion joints, formed by means of a socket
piece and glands with packing for keeping the joint tight whilst allowing movement
for expansion or contraction."
A lug or socket is provided preferably on the just before mentioned socket piece,
to which a thermometer can be attached or through which such can be introduced,
in order to ascertain the respective temperatures of the entering and delivery
water.
On two opposite sides of each group of tubes a T bar or rail is attached, which
fits into a corresponding slide (or slides) or recess attached to the brickwork lining
of the chamber, or to a special fixed frame; or the T bar or rail may be attached
to these latter, and the recessed slide to the group of tubes. The object of this
arrangement is to provide means for withdrawing any one or more groups of tubes

page_text: at a time without stopping the works. Suitable plate covers or doors are provided
in the walls or roof of the chamber to admit of the removal of any of the groups.
The tubes may be arranged éither horizontally or vertically. The lower box is
provided with a perforated inlet pipe.
And in order that my invention and the manner in which the same may be
performed may be more readily and clearly understood I have annexed hereto the
accompanying sheets of drawings, in which
Fig. 1 is a plan looking down on the top of 4 groups of tubes arranged.vertically
with the top boxes removed shewing the perforated plates and the, upper ends of
the tubes. Figs. 2 and 3. are. respectively longitudinal and cross .vertical sections.
In these:-
-
at a time without stopping the works. Suitable plate covers or doors are provided
in the walls or roof of the chamber to admit of the removal of any of the groups.
The tubes may be arranged éither horizontally or vertically. The lower box is
provided with a perforated inlet pipe.
And in order that my invention and the manner in which the same may be
performed may be more readily and clearly understood I have annexed hereto the
accompanying sheets of drawings, in which
.
Fig. 1 is a plan looking down on the top of 4 groups of tubes arranged.vertically
with the top boxes removed shewing the perforated plates and the upper ends of
the tubes. Figs. 2 and 3.are.respectively longitudinal and cross vertical sections.
In these
a a are the caves.
bbare the perforated plates.
cc are the upper and lower boxes.
dd are the bars or rails.
ee are the recessed slides.
are the expansion joints.
g are the thermometer sockets, whilst
7 is the perforated inlet pipe.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I.:declare that what I
claim is :-
1° A water heater or economizer consisting of separate groups of tubes fitted
into perforated plates, the latter connected to D or other suitable shaped boxes,
each group being provided with T bars or rails on two opposite sides fitting into
recesses or slides attached to the sides of the chamber, (or to a separate fixed
frame), all substantially as and for the purpose:herein. set forth.
2° A water heater or economizer constructed with withdrawing sliding arrange-
ments for the separate. groups of tubes substantially, as herein :set forth rand
illustrated in the accompanying drawings.
Dated this 21st day of June 1892.
J. CLARK JEFFERSON,
2, East Parade, Leeds, Agent for. Applicant.