Improvements connected with Tubular Boilers used for Horticultural Purposes.
Year: 1895

page_text: Date of Application, 30th Mar., 1895
Complete Specification Left, 30th Dec., 1895-Accepted, 29th Feb., 1836
PROVISIONAL SPECIFICATION.
Improvements connected with Tubular Boilers used for
Horticultural Purposes.
J, JOHN COOPER, of Avenue Road, Bexley Heath, Kent, Florist, do hereby
declare the nature of this invention to be as follows:-
This invention has for object, to facilitate the removal of faulty tubes from and
the easy fitting in of new ones into boilers used by horticulturalists, florists, and
others of what are known as the "Rochford" type, said name being a trade term
for a boiler composed of short horizontal tubes connecting the front and back
water boxes of the fire portion or furnace, and of longer tubes connecting the front
water box to a flue water box arranged at a distance therefrom.
According to the present construction or arrangement of tubular boilers, the
tubes are cemented in, and when a tube becomes faulty in any way it is customary
to cut the tube short off and then to clip the end out of the socket before a
new one can be fitted in. The number of tubes are also limited and the sockets
for their reception are all on the inner walls of the end boxes.
According to my invention I so arrange and fit my tubes by rubber or other
packing and secure them from either end by cup or cover pieces, so that they can
be readily and easily removed endways or replaced in a similar manner.
To carry my invention into practice, I employ tubes of taper form in their
length and arrange sockets on and in the end boxes for their reception.
The tubes are preferably arranged narrow and wider ends alternately from say
the two boxes and dead or baffle plates or stops (brickwork) are also arranged for
directing the heat and products of combustion as desired.
•
The narrow ends of the tubes fit sockets in the inner walls of the boxes and are
made watertight by packing clamped or otherwise such as by caulking, the larger
ends are also similarly packed water tight and are held home by end covers which
fit the outside sockets and project into the water space of the boxes by screw,
clamping bars, bridges, or other appliances, the inner portions of such covers being
openworked or formed stud like so as not to interfere with the flow or free
circulation of water.
The invention permits of a greater number of tubes than usual being fitted in to
form side walls of the fire box portion, and where desired the flue tubes or flue
passages of the boiler can the better be arranged than is possible with the present
systeins of tubular boilers.
Dated this 30th day of March 1895.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said John Cooper.

page_text: Improvements connected with Tubular Boilers used for
Horticultural Purposes.
I, JOHN COOPER, of Avenue Road, Bexley Heath, Kent, Florist, 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 has for object, to facilitate the removal of faulty tubes from and
the easy fitting in of new ones into boilers used by horticulturalists, florists, and
others of what are known as the tubular type, said name being a trade term for a
boiler composed of short horizontal tubes connecting the front and back water
boxes of the fire portion or furnace, and of longer tubes connecting the front water
box to a flue water box arranged at a distance therefrom.
According to the present construction or arrangement of tubular boilers, the
tubes are cemented in and when a tube becomes faulty in any way it is customary
to cut the tube short off and then to chip the end out of the socket before a new
one can be fitted in. The number of tubes is also limited and the sockets for their
reception are all on the inner walls of the end boxes.
According to my invention I so arrange and fit my tubes by rubber or other
packing and secure them from either end by cup or cover pieces, so that they
can be readily and easily removed endways or replaced in a similar manner.
To carry my invention into practice, I employ tubes of taper form in their
length and arrange sockets on and in the end boxes for their reception.
The tubes are preferably arranged narrow and wider ends alternately from say
the two boxes and dead or baffle plates or stops (brickwork) are also arranged
for directing the heat and products of combustion as desired.
The narrow ends of the tubes fit sockets in the inner walls of the boxes and
are made watertight by packing clamped or otherwise such as by caulking, the
larger ends are also similarly packed watertight and are held home by end
covers which fit the outside sockets and project into the water space of the boxes
by screw, clamping bars, bridges, or other appliances, the inner portions of such
covers being openworked or formed stud like so as not to interfere with the flow or
free circulation of water.
The invention permits of a greater number of tubes than usual being fitted in
to form side walls of the fire box portion, and where desired the flue tubes or
flue passages of the boiler can the better be arranged than is possible with the
present systems of tubular boilers.
My invention will be clearly understood by referring to the annexed drawings.
Figure 1 is a part sectional elevation of one of my types of improved tubular
boilers.
Figure 2 an elevation of outer side face, Figure 3 an inner side face of same.
Figure 4 detail views of closers, which can be easily withdrawn when a faulty
tube has to be removed, or a fresh tube be put in.
Each end box of a pair corresponds in shape and the boiler when made up can
be put in position, or be set in brickwork with either end exposed for firing
purposes, the circulation chambers or passages being arranged according to
circumstances.
It will be observed that all the tubes are of tapered form and are in alternate or
zigzag order reversely from and to the end boxes.
A, A., are boxes with different yet determined diameter sockets B, C, projecting
from the faces from either side. D, D, are closers inserted into the larger
diameter sockets to bear end on against the larger ends of the tubes G, G. Each

page_text: larger socket B has a square or other shaped hole E transversely through it for
the reception of a key or bar F for fixing the closers D, D, home in contact by
end thrust against its tube G, G.
Each tube G as also the closers D have the usual packing ring H to render the
joints water tight. The closers D, D, have one end J hollow in connection with
passages K, K, for the free flow of water into and from the tubes and boxes, the
other ends of the closers being shut off by the baffle L as at section Figure 4, the
other hollow M serving for the insertion of a tool when desired. The holes P, P,
in the outer ends of the closers D, D, are shaped to coincide with those marked E.
in the sockets in order that said closers become fixed by the keys F when inserted,
said holes in the closers being also available for the reception of a withdrawal tool
when the closers have to be taken out but other holes may be provided for the
insertion of a withdrawal tool after the keys are removed if found convenient.
The bottom row of tubes Q, Q, may be parallel sided to serve as water fire bars
or ordinary grate bars, or a bottom grating can be placed in to rest on the lower
Such
tubes, or on a framing if such lower or fire tubes be dispensed with.
water fire tubes will preferably be caulked in place as is now done with ordinary
tubular boiler tubes as may also the upper or crown tubes R, R.
I have in Figure 1 part sectional elevation shown both boxes of the same height.
but the rear one may be of less height than that of the front one, and a separate
top end box can be arranged for the crown tubes R, R, to be longer than the
others or lower ones.
The series of tapered tubes G surround the fire and constitute with the end
boxes A, A, a fire box, the flame, products of combustion and gases exerting their
action against and around them, the direction for flow being determined by any
kind of fire bridges, baffle plates, or their equivalents according to fancy.
In the drawing Figure 1 I have shown a horizontal baffle plate S but any other
kind can be fitted, and a door can be provided for the back end of the fire box to.
close that end against escape.
T is a water inlet, and U the outlet both being in connection with the circulation.
heating pipes of the building.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. The construction of end boxes with different diameter sockets from each.
side face for reception of tapered tubes inserted through one and into the
other, the larger diameter sockets being closable by an appliance which fixes
the tapered tubes and makes watertight joints by the usual packing rings as.
described with reference to the annexed drawings.
2. The construction of boilers of the tubular type from a series of tapered
tubes inserted from and through either end for fixation in one box by closers.
fixable in opposite box as and in the manner substantially as described and shown.
3. In end boxes of tube boilers of the kind mentioned, the formation of tube.
receiving sockets on or in both faces thereof, said sockets of each face being
alternately large and small for corresponding ends of tubes set alternately therein.
as and for the purposes described.
1
Dabe 100%
H. GARDNER,
Patent Agent, 166 Fleet Street, London,.
Agent for the said John Cooper.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,.
Agent for the said John Cooper.