Improvements in Apparatus for Warming or Heating the Interiors of Greenhouses and Conservatories and for other Analogous Purposes.
Year: 1886

page_text: Date of Application, 6th Aug., 1886.
Complete Left, 6th May, 1887.
Complete Accepted, 6th Aug., 1887.
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Warming or Heating the Interiors
of Greenhouses and Conservatories and for other Analogous
Purposes.
I, EDWARD CHARLES PITT, of No. 38, Clifton Street, Finsbury Square, in the
Parish of Shoreditch, in the county of Middlesex, Rate Collector, do hereby declare
the nature of this invention to be as follows:-
This invention relates to improvements in hot water apparatus for raising the
temperature of the interiors of greenhouses and conservatories and for other analogous
purposes, whereby the desired object is effected in a simple and economical manner,
whilst the controlling of the degree of heat transmitted from the apparatus is greatly
facilitated.
The boiler consists of a series of pipes bent into a semi-circular shape the ends
thereof being connected to two closed water boxes, and the said pipes are enclosed
within a jacket of any suitable material. At the bottom of the said jacket is one or
more apertures below which is or are placed the burner or burners, gas or oil, for
heating the water, and in the upper part of the said jacket is an aperture for the
escape of the smoke and other products of combustion. To the outer sides of the
before mentioned water boxes are connected the ends of two or more coils of pipes
which may be of any suitable material and size, but, by preference, of different
diameters. When the said pipes are of considerable diameter I, in some cases,
without diminishing the extent of the outer heating surface, reduce the internal
capacity of the pipes by inserting a bar of wood or other suitable material within the
centre of the pipes. The flow of water from the interior of the said boxes to the
interior of any of the said coils of pipes may be, when desired, regulated or stopped
by means of suitably arranged taps.
Dated this 6th day of Anonst. 1886
VAUGHAN & SON,
Agents for the Applicant,

page_text: COMPLETE SPECIFICATION.
Improvements in Apparatus for Warming or Heating the Interiors
of Greenhouses and Conservatories and for other Analogous
Purposes.
1, EDWARD CHARLES PITT of 28 Noble Street, Gresham Street, in the City of
London, Coffee and Dining Room proprietor 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 improvements in hot water apparatus for warming or
Heating the interiors of Greenhouses, & Conservatories, & for other analogous
purposes," whereby the desired object is effected in a simple & economical manner,
whilst the controlling of the degree of heat transmitted, from the apparatus is greatly
facilitated.
The boiler consists of a series of pipes bent into a semi-circular or other shape or
form, the ends thereof being connected to two closed water boxes and the said pipes
or tubes are enclosed within a jacket of any suitable material-this jacket holds
& nurses the heat generated till it is nearly all taken up by the water.
At the bottom of the said jacket one or more apertures, below which is or are placed
the burner or burners, oil or gas, for heating the water in the pipes, & in the upper
part of the said jacket is an aperture for the escape of smoke & other products of
combustion.
To the outer sides of the before mentioned water boxes are connected the ends of
one, two or more coils of pipes, which may be of any suitable material & size, but by
preference of different diameters.
When the said pipes are of considerable diameter, I in some cases, without
diminishing the extent of the outer heating surface, reduce the internal capacity of
the pipes, by inserting a bar of wood, or other material, within the centre of the pipes
& thus effect a great saving in the heating power required to raise the water to the
necessary temperature.
The flow of water from the interior of the said waterboxes to the interior of any
of the said coils of pipes, may be, when desired, according to the Temperature,
regulated or stopped by means of suitably arranged taps.
DESCRIPTION OF THE DRAWINGS.
Figure 1, represents the boiler, which consists of a number of copper tubes of any
diameter bent into a semi-circular shape, the ends of tubes are fitted into two water
boxes, for flow & return of water to coils of pipes-the semi-circular shape securing a
very quick circulation.
Figure 2, is the jacket made of any suitable material, which completely envelopes
the boiler tubes & retains the heat till taken up by the water. The jacket at bottom
has one or more apertures below which is or are placed the burner or burners for oil
or gas. The top of jacket has an aperture for the escape of smoke or other products i
f

page_text: By this arrangement nearly all the heat is given to the water, while travelling
round the pipes to find an exit, & only a very small portion escapes at the upper
outlet of jacket.
The moisture given off by the heated tubes in the jacket has such an effect on the
heat generated, that its constituent parts are changed and the products are innocuous.
Figure 3, shows boiler & jacket connected to one coil of pipes-In the pipes of
larger diameter are inserted bars of wood or other material to reduce internal capacity,
& so give boiler less water to circulate, & yet secure a large heating surface.
This arrangement allows the boiler & coil to work with a great saving in the force
of heat required, & a two inch wick, with do the work of a six inch wick in ordinary
circumstances & run the water at a high temperature.
Figure 4, exhibits a combination of coils attached to one boiler, the flow of water
into the different coils being regulated by suitable taps.
By this arrangement, should temperature of house fall, lighting a lamp & turning
on tap of second coil, an increase of temperature is given-Again should the glass fall
lower still, lighting the third lamp & turning on third coil, the loss of temperature is
regained or loss is prevented, and an uniform degree of heat in Greenhouse &c. can
be maintained, without loss or waste of heating power, by lighting or putting out
lamp or oil & turning on or off taps.
The pipe from the Aperture top of Boiler jacket descending to the oil lamp or gas
jet, is to reduce the temperature of heated air, before it is conveyed out of Green-
house &c., at a point below gas jet to meet the external air at nearly the same
temperature.
Figure 5, shows the part of conduct pipe and cowl seen on outside the Greenhouse
either at side or on roof.
The mode of construction is placing one tube inside a larger-At the top end of
conduct pipe, from aperture of boiler jacket, is placed a cowl, as it leaves the
Greenhouse.
This cowl or larger tube has an inside smaller tube closed at the top & fitted to the
inside tube of conduct-This inner tube of cowl, closed at the top, has a number of
holes in the side, a short distance from closed top, out of which holes the heated air
& fumes from gas escape into the outer tube of cowl-this outer tube or cowl has an
aperture at the top & a number of holes at the bottom, between the inner and outer
tubes. This contrivance is to prevent any fumes smoke or condensation from gas
returning into the Greenhouse & is successful in the following way―
The inner warm tube conveys all smoke and fumes to the outer tube or cowl-
& should there be any resistance to its exit, at the top aperture, by cold air or strong
wind, the fumes &c. cannot return by the inner tube, the way it ascended, but must
find its way out through the holes at the bottom of the outer tube of cowl & disperse
on the outside. This applys whether boiler is placed outside or inside Greenhouse.
Having now particularly described & ascertained the nature of my said invention
& in what manner the same is to be performed, I declare what I claim is :-
1. The shape & construction of boiler, with jacket for utilization of Heat generated.
2. The combination of several coils to one boiler & the insertion of rods in the pipes
to reduce internal capacity.