Improvements in or relating to Steam Boilers.
Year: 1895

page_text: Date of Application, 20th Mar., 1895
Complete Specification Left, 20th Dec., 1895-Accepted, 25th Jan.,
1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to Steam Boilers.
I, JOHNSON MILLS, of Chapel Street, Saiford, in the County of Lancaster,
Engineer, do hereby declare the nature of this invention to be as follows:-
This invention relates to steam boilers that are constructed with one, two or more
flues, known as marine, Lancashire or Cornish boilers, such as are employed in
ships, mills, and like places; the object of this invention is to cause the water in
said boilers to circulate so as to obtain steam in less time after firing than is.
possible under existing conditions.
In this invention I place in a convenient, position near to a set, or between two
sets of boilers such as herein before named, a small water tube boiler constructed
with the usual inclined water tubes and an upper steam and water drum. I place
said water tube boiler so that the steam and water drum may be preferably in line
or about the same level as the steam space in the aforesaid Lancashire or similar
type of boilers. I form a connection between the water spaces in said Lancashire.
or like boilers at their front or at their rear ends, and the rear lower end of the
aforesaid water tube boiler :
I convey the water from the front header through a pipe in the steam and water
drum to the rear end inside thereof. I connect said steam and water drum.
by means of suitable pipes to the upper portions of the aforesaid horizontal
Lancashire or like boilers, through which the water from said boilers is returned
from the water tube boiler; by these means circulation is set up, the still water being
drawn away from the Lancashire or similar boilers, passing into and through the
tubes forming the water tube boiler, entering the steam and water drum in the
manner herein before described, and from thence is returned into the horizontal.
boilers at an increased temperature.
Deted this 10th day of Moab 1905
THOMAS PRESCOTT,
53 Arcade Chambers, St. Mary's Gate, Manchester,.
Agent for Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to Steam Bollers.
I, JOHNSON MILLS of Chapel Street, Salford, in the County of Lancaster,.
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 steam boilers that are constructed with either one, two.
or more flues, and termed Lancashire or Cornish boilers such as are employed in
mills, ships and like places.
The object of this invention is to cause the water in said boilers to circulate
so as to obtain steam in less time after firing than is possible under existing
loonditione

page_text: I attain this object by the means hereinafter described and as shown in the
accompanying sheet of drawings in which
Fig. 1 represents an outline front elevation, and Fig. 2 an outline plan view of
my invention, similar letters referring to similar parts.
In this invention I place in a convenient position near to a set, or between two
sets of boilers b such as herein before named, and as shown, a water tube boiler as a
constructed with the usual inclined water tubes and an upper steam and water
drum c I place said water tube boiler so that the steam and water drum e
is preferably at about the same level as the steam space in the aforesaid Lancashire
or like boilers.
I form a connection between the front ends of the aforesaid boilers 6 and the
front end of the steam and water drum c by means of the pipes d, and connect the
rear ends of said boilers with the rear lower end of the water tube boiler a by means
of the pipes e.
I convey the water from the front header of the water tube boiler
through a pipe or pipes placed within the steam and water drum so that the water
may be discharged into said drum at the rear end thereof. The cylindrical
boilers bare supplied with water in the ordinary manner by feed pipes as f fitted at
the front ends of said boilers.
In the application of my invention, the usual circulation of the water through the
inclined tubes of a water tube steam boiler is extended to the cylindrical boilers by
means of pipes as d through which the water is conveyed from the steam and water
drum c and passing through said cylindrical boilers is delivered by means of pipes
as e to the rear lower end of the water tube boiler.
By these means circulation is set up in the aforesaid Lancashire or like boilers,
the still water being drawn away from said cylindrical boilers, passing into and
through the tubes forming the water tube boiler, entering the steam and water drum
in the manner herein before described, and from thence is returned into the
horizontal boilers at an increased temperature.
Having now particularly described and ascertained the nature of this my said
invention and in what manner the same is to be performed I declare that
what I claim is ;-
The combination of a water tube boiler with one or more Lancashire, Cornish,
marine, or other like cylindrical boilers, said water tube boiler and cylindrical
boilers being connected by means of pipes as d and e by which the usual circulation
of the water through the inclined tubes in a water tube boiler is extended to the
cylindrical boilers, the still water is drawn away preferably from the rear ends of
said cylindrical boilers, entering at the lower end of and passing through the water
tube boiler, and is returned into the front end of the cylindrical boilers in the
manner and for the purpose substantially as herein before described.
Dated this 19th day of December 1895.
THOMAS PRESCOTT,
53 Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicant.
THOMAS PRESCOTT,
53 Arcade Chambers, St. Mary's Gate, Manchester,
Agent for Applicant.