CERTAIN IMPROVEMENTS IN APPARATUS FOR HEATING AND WARMING
Year: 1845

page_text: TO ALL TO WHOM THESE PRESENTS SHALL COME, I, EDWARD
DELL, of Woolwich, in the County of Kent, Wine Merchant, send greeting.
WHEREAS Her present most Excellent Majesty, by Her Letters Patent under
the Great Seal of Great Britain, bearing date at Westminster, the Fourth day of
December, One thousand eight hundred and forty-five, in the ninth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Edward Dell, my exors, adiiors, and assigns, Her especial licence, full power,
sole privilege and authority, that I, the said Edward Dell, my exors, adññiors,
and assigns, or such others as I, the said Edward Dell, my exors, adñiors, or
assigns, should at any time thereafter agree with, and no others, from time to
time and at all times thereafter, should and lawfully might make, use, exercise,
and vend, within England, Wales, and the Town of Berwick-upon-Tweed, my
Invention of "CERTAIN IMPROVEMENTS IN APPARATUS FOR HEATING AND WARMING;"
in which said Letters Patent there is contained a proviso that I, the said
Edward Dell, shall cause a particular description of the nature of my said
Invention, and in what manner the same is to be performed, under my hand
and seal, to enrolled in Her Majesty's High Court of Chancery within six
calendar months next and immediately after the date of the said in part
recited Letters Patent, as in and by the same, reference being thereunto had,
will more fully and at large appear.
NOW KNOW YE, that in compliance with the said proviso, I, the said
Edward Dell, hereby declare that my said Invention has relation solely to

page_text: those descriptions of apparatus in which heating and warming are effected
indirectly through the medium of certain bodies, as water, steam, or air, instead
of the direct action of fire or flame, and that the nature of the same consists in
enclosing the tubes, pipes, flues, or other vessels containing such bodies in
outer casings placed at a certain distance or distances apart, and perforated
with numerous holes so that the external cold air passing through these holes
is brought, in a great many minute streams, "into contact with the inner
tubes, pipes, flues, or other vessels, and re-issues in like distributed manner in
minute streams in a heated or warmed state, for which purpose I generally
employ perforations only one eighth of of an inch in diameter and set from half
to one inch apart. And I declare that the manner in which the said Invention
is to be performed is fully set forth in the following description thereof,
reference being bad to the Drawings hereunto-annexed.
Figure 1 of the said Drawings represents a longitudinal, horizontal section,
and Figure 2 an external view of an apparatus for heating and warming
constructed according to my said improvements, and applicable more parti-
cularly to the heating and warming of beds, feathers, grain, &c. A is a metal
cylinder or case, which is filled with boiling hot water, through a single aper-
ture at one end, and then instantly closed by means of a water-tight brass and
washer B. C, C, is a larger cylindrical case, composed of perforated metal,
within which the hot water tube A is enclosed, and which is kept by the
stays a, a, a, a, at a distance all round of about half an inch. One end of this
larger case opens on a hinge, or by a screw at b, in order to allow of access to
the inner case when it is required to be filled or emptied. D, D, are handles,
E is a key for opening the nut B.
Figure 8 represents another apparatus, constructed on the same principle,
which is more especially suitable for warming libraries, bed rooms, halls, &c.
It. differs from the other in being vertical, and both shorter and broader.
Figure 4 is an external elevation, and Figure 5 a sectional elevation of a
smaller and more portable apparatus than the preceding, in which the hot
water reservoir and its enclosing perforated case are made to fit loosely into
the pedestal, as shewn, so as to be readily detached therefrom when required
to be emptied and charged with a fresh supply of hot water.
Figures 6 and 7 represent a hot-water foot warmer, suitable for carriages,
churches, and other like uses. Instead of one outer perforated case, two or
more such cases, with suitable intervals between them, may be used in some
cases with advantage, as, for example, for enclosing hot-air stoves; instead also
of the outer cases consisting of perforated plates, they may be made of wire-
work or wire gauze.

page_text: And having now described the nature of my said Invention, and in what
manner the same is to be performed, I declare that though I have described
the inner hot water cases (A) as being composed of metal, I do not limit
myself to, those materials, but that in some cases glass or earthenware may
answer equally well; neither do I confine myself to the particular number,
dimensions, or situations of the several parts.
And I declare that what I claim is the enclosing of these descriptions of
apparatus for heating and warming, in which the heating or warming is
effected indirectly through the medium water, steam, air, or other like bodies,
with water perforated casings fixed at suitable distances apart, as exemplified
in the several varieties of apparatus before described.
In witness whereof, I have hereunto set my hand and seal, this Eleventh
day of December, One thousand eight hundred and forty-five.
Signed, sealed, and delivered, by the
within-named Edward
-the presence of
Dell, in
EDWARD (L.s.) DELL.
This is the deed poll of Specification
referred to in the annexed affidavit
of Edward Crump Dell, sworn
before me, this 22d day of May,
1846,
D. DREW.
Edward Crump Dell, of High Street, Highgate, in the Parish of Saint
Mary, Hornsey, and County of Middlesex, Surgeon, maketh oath and saith,
that he was present on Thursday, the Eleventh day of December, One thousand
eight hundred and forty-five, and did see Edward Dell, late of Woolwich, in
the County of Kent, Wine Merchant (since deceased), duly sign and seal
and, as and for his act and deed, in due form of law, deliver the deed poll of.
Specification, bearing date the said Eleventh day of December, One thousand
eight hundred and forty-five, and hereunto annexed, marked A, and that the
name or signature "Edward Dell" set and subscribed thereto is of the
proper handwriting of the said Edward Dell, and that the name or signature

page_text: "Edward .C. Dell," set and, subscribed as a witness to the due execution
thereof by. the said "Edward Dell is of the proper handwriting of 'me, this
deponent..
Sworn at the Enrolment Office,
Chancery Lane, in the County. of
Middlesex, this Twenty-second day
of May, One thousand eight hun-
dred and forty-six, before me,."
.D. 'DREW.'
EDWARD C. DELL.:
AND BE IT REMEMBERED, that on the oath of Edward Crump Dell,
the Specification aforesaid was enrolled, word for word, as above written.
And also the Specification aforesaid was stamped according to the tenor of
the Statute made for that purpose.
Enrolled the Fourth day of June, in the year of our Lord One thousand
eight hundred and forty-six.