IMPROVE- MENTS IN ACTUATING FAN BLOWERS BY STEAM POWER
Year: 1867

page_text: LETTERS PATENT to William Clark, of 53, Chancery Lane, in the County
of Middlesex, Engineer and Patent Agent, for the Invention of "IMPROVE-
MENTS IN ACTUATING FAN BLOWERS BY STEAM POWER."-A communication
from abroad by George Washington Lemley. of Paterson, in the County
of Passaic and State of New Jersey Linited States of America.
PROVISIONAL SPECIFICATION left by. the said William Clark at the Office
of the Commissioners of. Patents, with his Petition, on the 7th March
1867.
I, WILLIAM CLARK. of 53, Chancery Lane, in the County of Middlesex.
Engineer and Patent Agent, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN ACTUATING FAN BLOWERS BY STEAM POWER,"
to be as follows:-
The present improvements consist in driving one of the ordinary fan blowers
by the direct application of steam to its several vanes as they in turn and
regular order and succession pass round within the outer casing or shell of
the blower, the pipe for the admission of the steam to the vanes of the fan
blower being suitably located therefor and in a line with the outlet for the
blast from the fan chamber or casing.

page_text: The improvement in steam fan blowers is illustrated in the accompanying
Drawing, being a section through the blower taken in the direction of its
length.
A, in the Drawing, represents the casing of the blower which is made of a
cylindrical form of the requisite 'diameter on its inside to accommodate and allow
the vanes B of the fan wheel to freely revolve around and within the casing:
these vanes B are attached by radial arms D to the centre hub or shaft E.
which is hung in suitable bearings at the centre of the casing A. around which
the casing is left open both sides so as to admit air to its 'interior for feeding
the vanes of the fan blower: F, the outlet to the blast produced by the
revolution of the several vanes within the casing A; G, a steam pipe extending
across casing A at its lower portion, and so situated therein as not to interfere
with the revolution of the fan; this steam pipe on its side toward the vanes
of the fan is perforated, and through such perforations or slit the steam escapes,
acting against the surfaces of the fan vanes in regular order and succession as
they pass around in consequence thereof, the steam with the air escaping at
the outlet F therefor to the fan casing or box.
SPECIFICATION in pursuance of the conditions of the Letters Patent. filed
by the said William Clark in the Great Seal Patent Office on the
30th August 1867.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, WILLIAM
CLARK, of 53, Chancery Lane, in the County of Middlesex, Engineer and
Patent Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria. by Her Letters
Patent, bearing date the Seventh 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
William Clark, Her special licence that I, the said William Clark, my
executors, administrators, and assigns, or such others as 1. the said William
Clark, 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 Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN ACTUATING
FAN BLOWERS BY STEAM POWER," a communication to me from abroad by George
Washington Lemley, of Paterson; in the County of Passaic, and State of New

page_text: Jersey, United States of America, upon the condition (amongst others) that
I, the said William Clark, my executors or administrators, by an instrument
in writing under my, or their, or one of their hands and seals, should par-
ticularly 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 William Clark, do hereby declare the
nature of the said invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement, reference being had to the Sheet of Drawings hereunto annexed, -
and to the letters and figures marked thereon (that is to say):-
The present improvement consists in driving one of the ordinary fan blowers
by the direct application of steam to its several vanes as they in turn and
regular order and succession pass around within the outer casing or shell of
the blower, the pipe for the admission of the steam to the vancs of the fan
blower being suitably located therefor and in a line with the outlet for the
blast from the fan chamber or casing.
In the accompanying Plate of Drawing this improvement in steam fan
blowers is illustrated, Figure 1 being a section through the blower taken in the
direction of its length, and Figure 2 a central transverse section. Similar
letters of reference indicate corresponding parts.
A, in the Drawings represents the casing of the blower, which is made of a
cylindrical form, of the requisite diameter on its inside to accomodate and
allow the vanes B of the fan wheel to freely revolve around and within the
casing these vanes B are attached by radial arms D to the centre hub or
shaft E, which is hung in suitable bearings at the centre of the casing A,
around which the casing is left open both sides so as to admit air to its interior
for feeding the vanes of the fan blower; F, the outlet to the blast produced
by the revolution of the several vanes within the casing A; G, a steam pipe
extending across casing A at its lower portion, and so situated therein as not
to interfere with the revolution of the fan; this steam pipe on its side
toward the vanes of the fan is perforated, and through such perforations the
steam escapes acting against the surfaces of the fan vanes in regular order
and succession as they pass around in consequence thereof, the steam with the
air escaping at the outlet F therefor to the fan casing or box.
Having described the nature of this Invention, and the manner of per-
forming the same, I declare that what I claim as the Invention to be protected
by the herein-before in part recited Letters Patent is, the direct application

page_text: of steam to the vanes of a fan blower, substantially as and for the purpose
described.
In witness whereof, I, the said William Clark, have hereunto set my
hand and seal, this Twenty-sixth day of August, in the year of our
Lord One thousand eight hundred and sixty-seven.