Improvements in Means for Agitating the Water in Steam Boilers.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Means for Agitating the Water in Steam Boilers.
I, JOSEPH CASPAR AUGUST GRIESE, of No. 2, bei dem Hühnerposten, in the City
of Hamburg, in the German Empire, Engineer, do hereby declare the nature of
this invention to be as follows:-
The object of the present invention is to agitate (move) the water in steam boilers
in such a way that the whole volume of water is conducted along the heated walls
of the steam boiler, whereby a uniformly hot temperature in the water is attained.
The invention consists in arranging in the boiler a rotatably mounted spindle
which in the Lancashire type of boiler, chosen for illustrating the invention would
be supported vertically between the two flues at its bottom end in a step bearing
and at its top end in a stuffing box or gland amalgamated with the steam outlet
valve at the top of the boiler. The spindle is provided with a suitable agitator,
such for instance as a paddlescrew blades or fan in the coldest region of the water,
generally at the bottom, and with a worm at the end extending into the part of the
steam outlet tube which stands vertical from the boiler, which worm is acted upon
by the steam so that it rotates the spindle and the agitator fixed thereto. Hereby
the water is brought into motion or circulation in such a way that it uniformly
encircles and plays around the heated flues or fire tubes thereby becoming itself
uniformly heated and at the same time preventing the formation of air and steam
bubbles on the outer walls of the fire tubes, which are an obstacle to the delivery
of heat.
D
1000
PHILLIPS & LEIGH,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Means for Agitating the Water in Steam Boilers.
I, JOSEPH CASPAR AUGUST GRIESE, of No. 2, bei dem Hühnerposten, in the City
of Hamburg, in the German Empire, 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:-
The object of the present invention is to agitate (move) the water in steam boilers
in such a way that the whole volume of water is conducted along the heated walls
of the steam boiler, whereby a uniformly hot temperature in the water is attained.
In order that my invention may be more fully understood I will now proceed to
describe the same in detail and for that purpose shall refer to the accompanying

page_text: sheet of drawing, whereon I have shown
vertical cross-section of a steam boiler
provided with my improved agitating device.
t
The invention consists in arranging in the boiler a a rotatably mounted spindle c
which in the Lancashire type of boiler, chosen for illustrating the invention,
would be supported vertically between the two flues g at its bottom end in a step
bearing d and at its top end in a stuffing box d¹ provided in the wall of the neck b
of the steam outlet tube b at the top of the boiler. The said spindle c is provided
with a suitable agitator f, such for instance as a paddle wheel, screw blades or a
fan in the coldest region of the water, generally at or near the bottom of the boiler
as shown, and with a worm e at the upper end extending into the neck of the steam
outlet tube which worm is acted upon by the steam escaping or being emitted
through the neck 6 and outlet tube b thereby rotating the spindle and the
agitator fixed thereto. By this means the water is brought into constant motion
or circulation in such a way that it uniformly encircles and plays around the heated
flues or fire tubes g thereby becoming itself, uniformly heated, and at the same
time preventing the formation of air and steam bubbles on the outer walls of the
fire tubes, which bubbles are an obstacle to the action or delivery of heat.
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―
9+.
1. An improved automatic agitating device for increasing. the circulation of the
water in steam boilers which device consists of a spindle supported within the boiler
and mounted on said spindle is a suitable agitator and a driving worm, the said
driving worm being operated or rotated by the escaping steam, substantially as and
for the purpose set forth.
2. In combination with a steam boiler, the improved agitating device for agitat-
ing the water in steam boilers constructed, arranged and operating substantially
as hereinbefore described with reference to and shown in the annexed drawing.
Dated this 1st day of December 1898.
PHILLIPS & LEIGH,
22, Southampton Buildings, Chancery Lane, London, W.C.,
Agents for the Applicant.