IMPROVE- MENTS IN FEED-WATER HEATERS FOR LOCOMOTIVES
Year: 1866

page_text: LETTERS PATENT to Samuel Finton Allen, of Chicago, in the State of
Illinois, in the United States of America, for the Invention of "IMPROVE-
MENTS IN FEED-WATER HEATERS FOR LOCOMOTIVES."
Sealed the 9th July 1866, and dated the 22nd January 1866.
PROVISIONAL SPECIFICATION left by the said Samuel Finton Allen
at the Office of the Commissioners of Patents, with his Petition, on the
22nd January 1866.
I, SAMUEL FINTON ALLEN, of Chicago, in the State of Illinois, in the
United States of America, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN FEED-WATER HEATERS FOR LOCOMOTIVES," to be as
follows:-
This Invention relates to the employment of a portion of the exhaust steam
for the purpose of transmitting heat therefrom to the feed water for the boiler,
and consists in so constructing and arranging a tubular or other suitable
heater with pipes, connections, stop valves, and other attachments that a
portion of the steam shall be interrupted in its course through each of the
exbaust pipes by a lip or projection extending inward at an oblique angle, and
steam shall be thereby diverted into additional pipes capable of being removed.
at will by disconnecting a suitable yoke, and the steam shall be led through
these additional pipes into a common pipe leading to the heater and con-

page_text: trolled by an adjustable valve, so as to heat the feed water, and avoid either
seriously obstructing the escape of the exhaust steam or discharging an excess
of steam through the heater.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Samuel Finton Allen in the Great Seal Patent Office
on the 10th July 1866.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, SAMUEL
FINTON ALLEN, of Chicago, in the State of Illinois, in the United States of
America, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Twenty-second day of January, A.D. 1866, in the
twenty-ninth year of Her reign, did, for Herself, Her heirs and successors,
give and grant unto me, the said Samuel Finton Allen, Her special license
that I, the said Samuel Finton Allen, my executors, administrators, and
assigns, or such others as I, the said Samuel Finton Allen, 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 FEED-WATER HEATERS
FOR LOCOMOTIVES," upon the condition (amongst others) that I, the said
Samuel Finton Allen, 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 Office of the Commissioners of Patents for Inventions within six
calendar months next and immediately after the date of the said Letters Patent.
NOW KNOW YE, that I, the said Samuel Finton Allen, do hereby
declare the nature of my said 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 the employment of a portion of the exhaust steam
for the purpose of transmitting heat therefrom to the feed water for the boiler,
and consists in so constructing and arranging a tubular or other suitable
heater with pipes, connections, stop valves, and other attachments, that a
portion of the steam shall be interrupted in its course through each of the

page_text: exhaust pipes by a lip or projection extending inward at an oblique angle, and
steam shall be thereby diverted into additional pipes capable of being removed
at will by disconnecting a suitable yoke, and the steam shall be led through
these additional pipes into a common pipe leading to the heater and con-
trolled by an adjustable valve, so as to heat the feed water, and avoid either
seriously obstructing the escape of the exhaust steam or discharging an excess
of steam through the heater.
I will proceed to describe what I consider the best means of carrying
out my Invention.
The accompanying Drawings form a part of this
Specification.
Figure 1 represents a side elevation of the boiler, with sectional view of the
flues, and also an end view of the heater, a portion being represented as
broken to show the interior; Figure 2 is a longitudinal section of the heater Q,
with compound pipes R, and exhaust pipés T attached; Figure 3 is a side
view of exhaust pipe, with the opening through which the deflecting tongue
projects.
A represents the boiler, and Q the heater placed beneath A and at right
angles to it. The heater Q is securely fastened to the sides of frame F by
means of the lugged heads E, E. By this arrangement the heater is made to
answer as a brace, and thus give stabillity to the frame F. The lugged heads E
are held together by the longitudinal bolts P, which can be easily removed
when it becomes necessary to repair or cleanse the heater. R represents the
compound pipes which connect the beater Q with the exhaust pipes T. The
office of the pipes R is to convey a sufficiency of steam into heater to raise
the water to the desired temperature. The pipes T are fastened together by
means of the yoke and set screws ✗, so that one pipe can be removed without
deranging the other. A represents a valve for regulating the exhaust steam
which enters through the compound pipes R. The pipes R and T are so
constructed and arranged that the pressure of steam in heater Q will be equal
to that in pipes T. This result is chiefly attained by the use of the deflecting
tubular tongue C, which directs as much steam into pipes R as is necessary
to preserve the equilibrium above stated, and discharges the remainder
through the ordinary nozzles. B³ represents the plunger, which is designed to
prevent any hard substance that may enter through pipes R from striking
against and injuring the flues I, Figure 2. To effect this object the end of
the plunger B is closed, and the sides open for the escape of the steam.
H, in Figure 1, represents the pipe through which the cold water is forced
into the heater Q, and L the pipe through which hot water enters the boiler;
S represents the escape pipe.

page_text: Having thus described my Invention, what I claim and desire to secure by
Letters Patent is the combination of the compound pipes R, the exhaust
pipes T, the regulating valve A, the deflecting tongues C, the yokes X, and
the heater Q, substantially as herein set forth..
In witness whereof, I, the said Samuel Finton Allen, have hereunto
set my hand and seal, this Fifth day of June, A.D. 1866.
Witness,
SAMUEL FINTON ALLEN. (L.B.).
THOMAS D: STETSON,
Patent Agent,
5, Tryon Row, New York.