Improvements in Water Tube Boilers.
Year: 1897

page_text: I, ARTHUR GEORGE MUMFORD, of the Culver Street Iron Works, Colchester,
in the County of Essex, Engineer, do hereby declare the nature of this invention
to be as follows:-
This invention relates to water tube boilers, and it consists of an improvement
in the construction of the water chambers or tube boxes, the object being primarily
to facilitate the insertion and removal of the water tubes.
According to this invention the water chambers or tube boxes are made of an
irregular shape in cross section each having three flat or approximately flat sides.
The outer side has a series of openings for giving access to it which are closed by
suitable plates. The other two sides are each intended to receive the ends of two
groups of water tubes which are so arranged as to leave a space between them for
a battle plate. The sides adapted to receive the water tubes are shaped so that the
said tubes enter the chamber or box at right angles to the said sides thereby
facilitating the attachment of the said tubes.
Dated this 2nd day of Anvil 1897
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent
70, Chancery Lane, London, W.C., Agent for the Applicant.
Improvements in Water Tube Boilers.
I, ARTHUR GEORGE MUMFORD, of the Culver Street Iron Works, Colchester,
in the County of Essex, Engineer, 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:-
This invention relates to water tube boilers, and it consists of certain improve-
ments in the water chambers or tube boxes and in the arrangement of the water
tubes, the object being primarily to facilitate the insertion and removal of the
water tubes.
In the accompanying drawing, Figure 1 is a view in front elevation-partly
in section showing by way of example this invention applied to a boiler in
which the water tubes are connected directly to the water chambers.
According to this invention the water chambers A, A, are made of an irregular
shapo in cross section each having three flat or approximately flat sides. The
outer sides a has a series of openings a' for giving access to it which are closed
Pine R71

page_text: by suitable doors or covers a. The other two sides a and a receive the ends
of the water tubes ✗ which are so arranged in two groups with a small space
between them in which space is fixed a baffle plate which is preferably faced
on its one side with asbestos.
The sides a³ and a of the chamber adapted to receive the water tubes are so
shaped that the tubes X enter the chamber at right angles to the said sides
thereby facilitating the attachment of the tubes.
It will thus be seen that by the arrangement and position of the doors and
covers easy access is obtained for expanding or renewing the tubes X.
It will be understood that each chamber is alike and that the arrangement
of the water tubes and the battle plate is alike on both sides of the boiler.
The steam collector C and the water circulating pipes 1 are of the usual con-
struction and arrangement and present no novel features.
In boilers having the tubes X arranged in self-contained groups or elements
as specified in my prior Patent No. 8729 of 1893 the boxes receiving the ends of
the tubes and in connection with the steam collector and water chambers respectively
aro shaped as hereinbefore described so that the tubes enter the boxes at right
angles.
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:-
(1) The improvements in water tube boilers substantially as herein set forth.
(2) In a water tube boiler so shaping the water chambers or tube boxes that
the water tubes enter the said chambers or boxes at right angles thereto as and
for the purpose specified.
(3) In a water tube boiler shaping the water chambers so that the water tubes
enter the said chambers at right angles thereto and arranging the water tubes so
as to make two groups on each side providing spaces for baffle plates, as and
for the purpose specified.
(4) In a water tube boiler the combination with the steam collector and the
water circulating pipe or pipes, of two water chambers each having three
flat or approximately flat sides one having openings closed by suitable
covers or plates and the other two receiving the water tubes, the arrange-
ment being such that the tubes enter the chamber at right angles thereto,
and of a baffle plate on each side of the boiler so arranged as to divide each group
of tubes into two elements, as set forth.
(5) In a water tube boiler so shaping the water chambers or tube boxes that
the water tubes enter the said chambers or boxes at right angles thereto and
providing said chambers or boxes with doors or covers so arranged that easy
access may be obtained for expanding or renewing the said water tubes, as set
forth.
T
1000
ed this 2nd day of January 1998.
ROBERT E. PHILLIPS, Assoc. M. Inst. C.E., M.I. Mech. E.,
Consulting Engineer and Patent Agent,
70, Chancery Lane, London, W.C., Agent for the Applicant.