Year: 1886

page_text: Date of Application, 3rd May, 1886.
Complete Left, 2nd Feb., 1887.
Complete Accepted, 15th Apr., 1887.
WILLIAM COTTON Engineer & Mill Furnisher 80 Marmont Road Peckham Lon-
don S.E. I do hereby declare the nature of this invention to be as follows:-
Invention to Purify Water for Steam Boilers by Filtering the same, under pressure
of the Steam from the Steam Boiler, in wrought or Cast Iron Cylinders or Chambers
partly filled, with Mineral, Vegetable or Animal Charcoal.
ד
100
WILLIAM COTTON.

page_text: Invention to Purify Water for Steam Boilers by Filtering the same
Under Pressure of Steam through Mineral, Vegetable, or Animal
Charcoal.
I, WILLIAM COTTON, of 80 Marmont Road, Peckham, London, S.E., Engineer and
Mill Furnisher 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 :-
My invention has for its object to effect the purification of the feed water of
boilers.
I admit the feed water into the lower part of an iron cylinder by the aid of steam
from the boiler after the manner of an injector. The water and steam pass together
into the lower part of the cylinder, and the heated water there deposits any carbonates
it may contain. The middle part of the cylinder is separated from the lower part by
a partition, which however allows the water and steam to pass through its orifices or
interstices. This middle portion is filled with suitable filtering material, such as lumps
of coke. No partition separates the middle portion of the cylinder from the upper
portion. From the lower part of the upper division the water passes through a pipe
to the boiler, the outlet pipe having an elbow inside the cylinder bending downwards.
On the top of the cylinder is another outlet pipe, which carries off any steam that
may be in the upper division to the steam chest, or wherever it may be found
desirable.
In order to show more clearly how my invention is carried out, I furnish drawings
in which similar letters represent corresponding parts in all the figures.
Fig. 1 is an external view of the cylinder, inlet, and outlet pipes.
Fig. 2 is a longitudinal vertical section of the same showing the three divisions.
Fig. 3 is an enlarged view of the injecting apparatus.
A is the lower division of the cylinder.
B is the middle division of the cylinder containing the filtering material.
Cis the upper division of the cylinder.
D, D are hand holes.
E is the inlet water feed pipe.
E is the end of E within the cylinder.
E is the mount cast in one piece with E and F, and by which the injecting appa-
ratus is firmly attached to the cylinder.
F is the steam injector pipe which surrounds E with its horizontal part.

page_text: His the outlet pipe of the filtered feed water from the upper part of the cylinder
leading to the boiler, with
Hits elbow within the cylinder penetrating if desired below the upper surface of
the filtering material.
H" is the mount cast in one piece with H and H¹.
J is a steam outlet pipe, and
J³ its mount.
K is the partition separating the lower and middle divisions of the cylinder con-
sisting of a perforated plate of magnetized iron or bars of the same material with
interstices between.
KK are the supports of the partition.
L is a valve in F opening inwards.
I is a stop to prevent L opening outwards.
The feed water passing through E is forced into A by the steam coming from the
boiler through F. The water being heated in A deposits its carbonates there and
rises through the filtering material in B and passes out through the elbow H¹ and
pipe H to the boiler. The use of the elbow is to collect the water from beneath the
surface. Any steam collecting in the upper part of the division C passes off through
J to be used as desired.
Having now particularly described and ascertained the nature of my said invention,
and in what manner the same is to be performed, I declare that what I claim is :
A contrivance for purifying the feed water of boilers by filtering it under pressure
of steam from the boiler through mineral, vegetable, or animal charcoal as herein
described.
תית….
1 1
" Th 1
1000
W. H. MUNNS,
Agent for the Applicant.