AN IMPROVED STEAM HEATING AND VENTILATING APPARATUS
Year: 1867

page_text: LETTERS PATENT to George Haseltine, of the "International Patent
Office," No. 8. Southampton Buildings, Chancery Lane, in the County
of Middlesex. Civil Engineer, for the Invention of "AN IMPROVED
STEAM HEATING AND VENTILATING APPARATUS."--A communication from
abroad by Adolph Sternfeld, of Boston. Massachusetts, United States of
America.
Sealed the 23rd August 1867, and dated the 21st March 1867.
PROVISIONAL SPECIFICATION left by the said George Haseltine at the
Office of the Commissioners of Patents, with his Petition, on the 21st
March 1867.
No. 8,
I, GEORGE HASELTINE, of the International Patent
"International Patent Office,"
Southampton Buildings, (hancery Lane, in the County of Middlesex, Civil
Engineer, do hereby declare the nature of the said Invention for "An
IMPROVED STEAM HEATING AND VENTILATING APPARATUS," a communication, to
be as follows:---
The object of the said Invention is by the utilization of exhaust steam from
an engine and the employment of a slight fraction of the power developed by
TD 27

page_text: the said engine to obtain for the purposes of heating and ventilation currents
of pure heated air.
The said Invention consists chiefly in the employment of certain devices
arranged and operating in the following manner: A closed vessel by pre-
ference of a cylindrical form is provided with tubes which extend through the
heads of the cylindrical vessel and terminate at their ends in closed air
passages. The said vessel receives amongst these tubes the exhaust steam from
a larger pipe than the one which affords an outlet to any steam which may be
uncondensed, and a waste pipe is provided for conducting away the water pro-
duced by the condensation of the steam inside the cylindrical vessel. Connected
with an air passage at one end of the said tubes is a fan or other blowing
apparatus for causing air to pass through the tubes so as to condense the
steam in contact with the exterior of the said tubes and receive heat therefrom.
From the other end of these tubes the heated blast is conducted horizontally
or otherwise as may be desired. The blowing apparatus may be driven by a
belt from the engine from which the exhaust steam is taken. Air may be
taken into the said blowing apparatus from any part of the building in which
the same is situated or from the external atmosphere.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said George Haseltine in the Great Seal Patent Office on the
9th September 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, GEORGE
HASELTINE, of the "International Patent
"International Patent Office." No. 8, Southampton
Buildings. Chancery Lane, in the County of Middlesex. Civil Engineer, send
greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-first day of March. in the year of our Lord
One thousand eight hundred and sixty-seven. in the thirtieth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me,
the said George Haseltine, Her special licence that I, the said George
Haseltine. my executors, administrators. and assigns, or such others as
1. the said George Haseltine, my executors. administrators, and assigns,
should at any time agree with, and no others. from time to time and at all
times thereafter during the term therein expressed. should and lawfully
might make, use, exercise, and vend, within the United Kingdom of Great

page_text: Britain and Ireland, the Channel Islands, and Isle of Man, an Invention for
AN IMPROVED STEAM HEATING AND VENTILATING APPARATUS," upon the con-
dition (amongst others) that 1. the said George Haseltine, my executors or
administrators. by an instrument in writing under my. or their. or
one
of their hands and seals, should particularly describe and ascertain the nature
of the said Invention, and in what manner the same was to be performed,
and cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that I. the said George Haseltine, do hereby declare
the nature of the said invention, and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement. reference being hard to the accompanying Sheet of Drawings
forming a part of this Specification:
-
The object of the said Invention is by the utilization of exhaust steam
from an engine and the employment of a slight fraction of the power developed
by the said engine to obtain for the purposes of heating and ventilating
currents of pure heated air.
The said Invention consists chiefly in the employment of certain devices
arranged and operating in the following manner: A closed vessel. by
preference of a cylindrical form, is provided with tubes which extend through
the heads of the said cylindrical vessel and terminate at their ends in closed
air passages. The said vessel receives amongst these tubes the exhaust
steam from a larger pipe than the one which affords an outlet to any
steam which may be uncondensed, and a waste pipe is provided for con-
ducting away the water produced by the condensation of the steam inside
the cylindrical vessel. Connected with an air passage at one end of the
said tubes is a fan or other blowing apparatus for causing air to pass through
the tubes so as to condense the steam in contact with the exterior of the
said tubes and receive heat therefrom; from the other end of these tubes
the heated blast is conducted horizontally or otherwise. as may be desired.
The blowing apparatus may be driven by a belt from the engine from which
the exhaust steam is taken. Air may be taken into the said blowing appa-
ratus from any part of the building in which the same is situated or from the
external atmosphere.

page_text: vertical sections of the same drawn to an enlarged scale. Like letters
indicate the same parts in each of the Figures.
A denotes an upright drum or closed vessel composed of a cylindrical
shell a, and two heads b. a series of air tubes c, etc., extending entirely
through the drum and its heads, the whole surmounting a shallow air
chamber C. A stean induction pipe d being a continuation of the exhaust
pipe of the steam engine communicates with the interior of the drum A
through its upper head, an eduction pipe e somewhat smaller in diameter
than the induction pipe leading out of the drum on the opposite side of
the head, as shown in Figure 3. The drum A is further supplied with
a water escape pipe leading out of its lower part, as represented, this
pipe being for the escape of water which may be condensed within the
drum. An air blower or blast engine B of any well-known construction is
connected with a chute g leading into the air chamber C below the drum A,
motion being imparted to the blower by means of a belt connected with
the engine from which the exhaust steam is taken. The exhaust steam from
the engine passes into the drum A through the induction pipe d, and by
means of the differential diameters of the induction and eduction pipes
will be slightly compressed and circulated throughout its entire area.
Coming in contact with the air tubes c the steam will be condensed, and
will give out its latent heat, which will be conveyed by means of these
tubes to any portion or portions of a building which it is necessary to
heat. The blast of air through these tubes from the blower aids in dis-
tributing the passage of warm air over the building, and allows it to be
carried horizontally to any required distance. Should the steam within the
drum be only partially condensed the excess will escape through the eduction
air pipe e into the atmosphere. The purpose however is to so regulate
the air blast as to condense the whole of it. The apparatus thus becomes
not only a means of economizing much heat which would otherwise be
wasted in the escape of steam, but of warming and thoroughly ventilating
a building. The warm air imparted by it is moist and soft and highly
beneficial to health. The apparatus may be employed to good advantage
and with economical results by the direct application of steam to the said
apparatus.
Having thus fully described the said Invention as communicated to me by
my foreign correspondent. and shown how the same may be conveniently and
advantageously carried into practice. I claim. the apparatus above described
for utilizing exhaust steam for the purpose of heating and ventilating apart-

page_text: ments or buildings, consisting of the tubular drum A, with its induction and
ednction pipes d and e. and the blower or blast apparatus B. combined and
operating substantially as set forth.
In witness whereof. I, the said George Haseltine, have hereunto set my
hand and seal, this Ninth day of September, in the year of our Lord
One thousand eight hundred and sixty-seven.
Witness,
WM. ROBT. LAKE.
GEORGE HASELTINE. (...)