Improvements in Oil and Gas Heating Apparatus for Greenhouses, Conservatories, Halls, and the like.
Year: 1894

page_text: Date of Application, 31st Aug., 1894
Complete Specification Left, 31st May, 1895-Accepted, 13th July, 1895
I
PROVISIONAL SPECIFICATION.
Improvements in Oil and Gas Heating Apparatus for Greenhouses,
Conservatories, Halls, and the like.
FREDERICK HOWARD ROSHER Ambleside Croydon Road Beckenham Kent
Cement Merchant etc. do hereby declare the nature of this invention to be as
follows:-
A horizontal cylinder boiler is made so that it may be heated by either oil or
gas. It is constructed in the form of a cylinder in concentric rings forming two
cylinders with closed ends thus making a horizontal hollow boiler with escape
valves, this hollow forms a shaft or air passage through the centre the cold air in
passing through the shaft becomes heated & distributes the warmth equally over
the place to be heated. The character of the boiler is such that while the amount
of water to be heated is very small, the area over which the heated water is spread
is very considerable. A small air shaft underneath the boiler receives the fumes
and vapours and carries them into the water, where they are absorbed; thus
A suitable
preventing any unpleasant smell, so prevalent with oil heating stoves.
stand is made with or separately from the boiler, but preferably the latter, thus
making the apparatus more portable. The lamp provided with the stand, has a
water tray or pan to stand in, still further reducing any chance of smell from
the oil.
Dated this 31st day of August 1894.
FREDERICK HOWARD ROSHER.
Improvements in Oil and Gas Heating Apparatus for Greenhouses,
Conservatories, Halls, and the like.
I, FREDERICK HOWARD ROSHER, Ambleside, Croydon Road, Beckenham,
Kent, 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 relates to an improvement in oil and gas heating apparatus for
greenhouses, conservatories, halls, and the like.
The invention consists of a horizontal cylindrical boiler so made that it may be
heated by either oil or gas. It is constructed in the form of concentric rings or
tubes with closed ends except to a central hollow through which air has free play
to be heated for distributing the warmth equally over the place to be heated.
The character of the boiler is such that while the amount of water to be heated
is very small, the area over which the heated water is spread is very considerable.
A shaft from underneath the boiler receives the fumes and vapours and carries
them into the steam where they are absorbed, thus preventing any unpleasant smell
A suitable stand is made with or separately
so prevalent with oil heating stoves.
from the boiler but preferably the latter, thus making the apparatus more portable.
The lamp provided with the stand may have a water tray or pan to stand in, still
further reducing any chance of smell from the oil.

page_text: My invention will be readily understood by inspection of the annexed drawings.
Figure 1 vertical longitudinal section of a boiler and stand.
Figure 2 end elevation of same.
Figure 3 transverse section of another or slightly modified arrangement of boiler
and stand.
A, B, are two concentric rings or tubes with closed connecting ends C, C.
D chamber on top of outer tube B for collection of steam escaping from the water
by the nozzle E. F drawer for containing cold water renewable from time to time
for condensing steam as it accumulates.
G cap on filling hole of boiler.
H central air passage through the inner tube or ring A.
J up shaft for fumes from heater preferably an oil lamp or stove placed in the
box or stand K, the lower part of which is provided with holes L, L, for the entry
of air to support combustion of lamp or stove flame. The fumes from the lamp or
stove also pass into the chamber D where they are condensed by contact with the
vapour assisted by the water in the drawer or compartment F. M hood on bottom
of tube B for collecting the heat from the lamp or stove and for gathering it
towards the shaft J.
I purpose perforating outer shell of the chamber D for the escape of the
uncondensed steam or vapour should it be in excess, to be condensed by the vapour
or by the water in the drawer. N is the door of the box or stand.
P is perforated or gauze fitted part of the box or stand to ensure complete
ventilation.
Instead of the up shaft J being straight, as at Figures 1 and 2, it may be formed
ring shape, as at Figure 3, for dividing the up flow of the fumes as indicated by
the arrows.
•
Figure 4 represents a double water chamber boiler upon the foregoing method of
construction, the flue tube being divided or of ring form as with that shown at
Figure 3.
By the arrangement shown at Figure 4, the flue tubes are more in the water and
the heat passing upwardly is taken up by the water and then by the water heat
transmitted to the air in passing along the central horizontal passage.
The water in the ends of this boiler is of one body only but at Figures 5 and 6
where a straight vertical flue tube is used, I obtain a double passage for air, and
by arranging the two boiler casings with connecting pipes SI can obtain a free
circulation of the water as indicated by the arrows.
Figure 7 is a further exemplification of my invention consisting of a double
casing apparatus as at Figure 1 but with the flue tube J enclosed in a vertical
water tube T, said water tube being connected to the inner shell A only, in order
that a free circulation of water can take place.
Figure 8 represents a longitudinal section of a double flue boiler, each flue.being
surrounded by a water container tube.
If I fit a branch pipe, as per dotted lines Figure 1, to the air passage I can warm
the air in one room by water heat in which the heater is placed, and another room
by heated air from the air passage, the inflow causing a perfect circulation of air
in such room.
If necessary a pan of perfume or of a disinfectant can be placed in the air
passage for gentle absorption and diffusion along with the warm air leaving, the
apparatus.
The apparatus may be placed on feet Q, Q, or a bottom box R can be provided ;
the invention consisting of concentric rings or tubes connected by end pieces to
constitute a boiler, a horizontal free air passage formed by the inner of the rings
or tubes, and a vertical flue passage at right angles and a condensing chamber
provided or not with a drawer."
My improved heater opens a new feature with regard to greenhouse and warming
purposes generally. According to the present methods, the heat is derived from
the heating of water only and of the air that is within the house, but by my

page_text: method, I have the additional advantage of supplying fresh warm air into the
house, said air passing through within the inner ring or tube, so that I produce a
constant circulation of air which is so essential especially to plant life will prevent
the appearance of mildew now so much complained of.
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. A heating apparatus constructed and arranged in the manner shown on the
annexed drawings for the purposes set forth in the title hereof.
2. The construction of boilers from concentric tubes connected at their ends and
provided with a flue tube upwardly through the skin surfaces thereof, and with a
free air space at right angles, as represented in the annexed drawings.
3. The means herein before described by which the noxious fumes of exposed
flames can be absorbed, said fumes being guided through an uptake to a box upon
a boiler composed of concentric rings or tubes substantially as represented in the
annexed drawings.
The 31st day of May 1895.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said Frederick Howard Rosher.