IMPROVEMENTS IN STEAM BOILERS, STEAM BOILER TUBES, SIDES OF STEAM BOILERS, FLUES, AND FURNACES
Year: 1865

page_text: PROVISIONAL SPECIFICATION left by George Rydill at the Office of the
Commissioners of Patents, with his Petition, on the 7th April 1865.
I, GEORGE RYDILL, of Dewsbury, in the County of York, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN STEAM BOILERS, STEAM
BOILER TUBES, SIDES OF STEAM BOILERS, FLUES, AND FURNACES," to be as follows:-
My improvements in steam boilers, marine and land boilers, tubes of
boilers, sides of boilers, flues and furnaces, consist in placing two or more.
boilers of any diameter, either round, oval or spherical, or any other shape, one
above another, lengthways, or side by side, and piercing the top side of the
bottom boiler or boiler plates with holes, and I also pierce the under side of
the top boiler or boiler plates with holes of any required diameter, and I place
the boilers any suitable distance over or apart from each other, and connect
them with hollow cast steel, metal, copper, or drawn tubes, or any other
hollow metal pipes or tubes, and firmly secure the same to the boiler by
rivetting or fastening them with bolts, nuts, and screws, or ferruling, or any
other manner. The boilers I place apart from each other, leaving a space
betwixt, in which space I place hollow cast steel, metal, copper, or drawn
tubes or pipes as close together as is practicable, which support the top boiler
or boilers when rivetted or otherwise fastened to the same, each tube or pipe
bearing a certain portion of the weight, the boiler or boilers being round,

page_text: oval, or spherical, or any other shape, I splay and flange the tubes or pipes so
that they fit exactly the outer circle or curve of the round, oval, or spherical
boiler, and the hollow cast steel, metal, copper, or drawn tubes being fixed to
each boiler or boilers allow a free circulation of water to pass through those tubes
from one boiler to another, these boilers and tubes have in every part internal
pressure of water and steam, and are of great strength. I make moveable
boiler sides or flue sides in one or more lengths by the arrangement of a
metal frame fixed upon wheels on a tramway, so that the boiler or flue sides
are drawn sideways, or drawn up or endways, enabling every part of the boiler
or boilers, tubes and flues, to be immediately got at for eleaning, examining,
or repairing, or the sides of the boilers or flues are swung to or from the boilers
On the inside of the metal
or flues by means of a crane or swing doors.
frame, and fixed upon wheels next the boilers, I place one or more rows of
cast steel, metal, copper, or any other hollow tubes or pipes to contain water
or steam, and I connect these hollow tubes or pipes to the boilers so that a
free circulation of water or steam takes place, or I fix upon the moveable
frame cast metal or boiler plates, leaving a water space or partition, and
strengthening the same with bolts, nuts, screws, stays or rivets, as that of a
locomotive fire box, by this method a great amount of heating surface is
obtained for generating steam and heating water. The tubes, pipes, or water
space I protect from the action of cold air by covering the same with some
non-conductor of heat, or by means of brickwork built upon the moveable
frame; these boilers I secure at each end or in the middle with a metal
frame, and the moveable sides fit close to each boiler in order to divide the
top and bottom flues; the boilers and boiler sides are all secured with stays
one to another. Locomotive boilers made on this improved principle enables
the steam leaving the cylinders to pass along with the heat of the fire amongst
the upright tubes and ascend the chimney, thus obtaining a greater heating
surface; the heat from the fire box can be taken under the second boiler after
it leaves the present [locomotive tubes if desired. In the case of marine
circular boilers the chimney will go through the boiler or out at the side, the
moveable slide containing tubes or pipes or water space will be made to move
on each side upon wheels and join together in the centre. The improved boilers
I make in short lengths and fix them side by side, which can be extended long
distances, I place the furnace at one end, and then add other furnaces down the
row of boilers, and allow the heat from the second furnace to enter the same
flue as the first furnace. I place a furnace inside a framework of iron fixed
upon wheels at the end of the boiler or boilers; or the fire is placed on fire-bars
betwixt the boilers and amongst the tubes at the front end in the usual manner

page_text: but to insure combustion, and to burn and ignite any description of coal, I
line the iron framework with brickwork, leaving a space around for tubes, or
a water space or an air space; the furnace is entirely cased with bricks except
one or more holes being left for the flame to enter in amongst the tubes
under the boiler or boilers. I also make an under air current to the furnace
through a culvert which enables at all times an ample supply of cold air to be
taken from the outside of the boiler house. This Invention has for its object the
obtaining a large amount of heating surface within a very small space. The
fire is placed betwixt the tubes of the boiler or boilers and allowed to pass on
to the end where it may ascend the chimney, or pass down and travel up the
side of the boiler or boilers until it reaches the front end, it then passes to
the other side and down the side of the tubes, boiler or boilers, until it leads
off to the chimney; large boilers on this principle are made in parts, and sent
to any part of the world without inconvenience. The boilers all join together
at the top with a steam pipe or chamber to carry steam to the engine.