Improvements in Heating Apparatus especially applicable for Greenhouses and the like.
Year: 1890

page_text: Date of Application, 28th Oct., 1890
Complete Specification Left, 28th July, 1891-Accepted, 29th Aug., 1891
PROVISIONAL SPECIFICATION.
Improvements in Heating Apparatus especially applicable for
Greenhouses and the like.
I, WALTER FREDERICK SHARP of 53 Granby Street, Leicester, Engineer do
hereby declare the nature of this invention to be as follows:-
This invention has reference to heating apparatus such as is especially applicable
for greenhouses and the like, the object being to provide a simple, compact, efficient
and inexpensive apparatus for the purpose named. According to my invention I
construct a suitable casing or compartment of sheet iron or other suitable material
in which the oil lamp or other means from which the main heat supply is derived
may be placed.
At the upper end of the compartment mentioned there is fixed a preferably
conical shaped boiler, hollowed or recessed to receive the upper end of the lamp
chimney or the flame of a gas, in case the latter is used for heating purposes.
The flow and return pipes are connected to the boiler at suitable points and run
the whole distance or length of the greenhouse or other place which they are used
to heat.
The upper end of the conical shaped boiler is open and communicates with a
flue or pipe for conveying the products of combustion away, the said flue passes
preferably through the flow pipe and opens at its extreme end in the atmosphere,
thereby serving the dual office of carrying off the smoke and at the same time
assisting in heating the water in the pipe which surrounds it.
The boiler is supplied and emptied from a tank or equivalent at the extreme end
of the pipes.
The compartment in which the oil lamp or gas is placed is fixed preferably so
that the door opens outwards and can be attended to or regulated without entering
the greenhouse, the bottom of the door being perforated and fitted with a baffle
plate to prevent sudden gusts of wind from extinguishing the light or causing the
lamp to fire.
Dated this 28th day of October 1890
W. P. THOMPSON & BOULT,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Heating Apparatus especially applicable for
Greenhouses and the like.
I, WALTER FREDERICK SHARP of 53 Granby Street, Leicester, Engineer,
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 reference to heating apparatus such as is especially applicable
for greenhouses and the like, the object being to provide a simple, compact,
efficient and inexpensive apparatus for the purpose named.
According to my invention I construct a suitable casing or chamber of sheet
iron or other suitable material in which the oil lamp or other means from which
the main heat supply is derived may be placed.
At the upper end of the chamber there is fixed a preferably conical shaped
boiler, hollowed or recessed to receive the upper end of the lamp chimney or the
flame of a gas, in case the latter is used for heating purposes.

page_text: The flow and return pipes are connected to the boiler at suitable points and run
the whole distance or length of the greenhouse or other place which they are used
to heat.
The upper end of the conical shaped boiler communicates with a flue or pipe
which conveys away the products of combustion; the said flue passes preferably
through the flow pipe and communicates with the atmosphere, thereby serving the
dual office of carrying off the smoke and at the same time assist in heating the
water in the pipe which surrounds it. The boiler is supplied from a suitable
tank or equivalent situated preferably at the top of the chamber hereinbefore
mentioned.
The chamber in which the oil lamp or gas is placed is fixed preferably so that
the door opens outwards and the lamp or gas can be attended to or regulated
without entering the greenhouse, the bottom of the door being perforated and
fitted with a baffle plate to prevent sudden gusts of wind from extinguishing the
light or causing the lamp to fire.
In order to assist to a clear understanding of the invention reference is made to
the accompanying drawing in which
Figure 1 is a perspective view of a heating apparatus constructed in accordance
with my invention.
Figure 2 is a vertical section.
Figure 3 is a sectional view of the flue, water pipe, and connecting flanges on an
enlarged scale.
A represents the chamber or casing in which the main heat supply is located.
It is constructed of preferably sheet iron of any suitable shape or dimensions
and may be fixed either inside or outside of the building or structure it is intended
to heat.
In case of a greenhouse or glass house where plants are to be cultivated by
artificial heat it is more convenient to fix it on the exterior of same so that the
oil or other stove, lamp or gas from whence the heat is derived may be trimmed
refilled or otherwise attended to without the necessity of entering the greenhouse
and thereby admitting cold air and temporarily reducing the internal temperature.
The chamber A when fixed in its permanent position should have a small space
left between the bottom thereof and the ground so that the air can enter the
holes A' in the floor of the chamber for the purpose of assisting combustion.
The door A2 of the said chamber is hinged on one side to open outwards and
may be provided with any suitable latch, lock or fastening device, the bottom of
the door being provided with a slotted or perforated case B having in the interior
thereof any suitable swing baffle plate which will prevent sudden gusts of wind
from coming into direct contact with the flame of the gas or lamp and
extinguishing it or causing it to fire. C is a removable oil chamber resting on the
floor of the chamber A and from which the lamp C¹ is supplied, the chimney C₂
being directed into a preferably approximately conical shaped copper or other
metal hood, boiler or receptacle D so that the products of combustion and heated
air may pass upwards and circulate through the flue E and assist in heating the
water in the pipe F which encases it.
The hood or boiler D is formed of two approximate cones D'D' secured together
at their bases and of such relative sizes as to leave a hollow or space between.
The upper part of the internal cone opens into the flue or pipe E and the
heated air and products of combustion pass through the said pipe in the direction
of the arrows and eventually escape into the atmosphere through the outlet pipe E
The space between the cones is filled with water the latter being supplied from
the tank A³ formed at the upper end of the chamber A and communicating by
means of the opening F. Upon the water reaching the required temperature i
circulates through the pipe F which encloses the flue E; any steam that i
generated is allowed to escape through the pipe F
The pipes E F pass through openings on the side of the chamber A and ar
soldered or otherwise connected at any convenient point in their length b

page_text: flanges G G having a packing of rubber, leather or other material G+² between and
tightened against each other by screw bolts G³ as shewn most clearly in
Figure 3.
A downwardly depending pipe E3 is connected to the flue pipe E to carry away
any condensed water that may have formed therein.
It is obvious that the length of the pipes E F may be determined by the size of
the building to be heated and that the said pipes may emerge from any other
suitable, point in the chamber A. than the side thereof as shewn in the drawing.
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. In an apparatus for heating greenhouses and the like the combination with a
heated chamber such as A of a superposed tank A³ and hood or boiler such
as D D D substantially as described and illustrated in the accompanying
drawing.
2. In an apparatus for heating greenhouses and the like the combination with a
hood or boiler such as D D D of flue such as E encased by water pipe such as F
substantially in the manner described and illustrated in the accompanying drawing.
3. The complete apparatus constructed and operating substantially in the
manner and for the purpose described and illustrated in the accompanying
drawing.
Dated this 27th day of July 1891.