Year: 1888

page_text: I, MIGUEL DEIS of 8 Bella Vista, Minas de Rio Tinto in Spain, 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
My invention relates to an apparatus which is adapted to insure a higher degree of
safety in working steam-boilers by causing steam to escape through an escape-valve,
as soon as the water in the boiler sinks below its normal level, and in doing so to set
to work a donkey-feed-pump at the same time producing a sound, due to such escape
of steam, which is to warn the person in charge of the boiler, whereas on the water-
level having risen above its prescribed level it will open an outlet through which the
superfluous water can be driven out. By this apparatus the danger of a boiler-explosion
is greatly reduced and as by the water-outlet a means is provided to remove every now
and then the scum, whose destructive action upon the internal surfaces of the boiler is
well known, also the life of the boiler is considerably prolonged by this apparatus being
fitted to it..
In order to make my invention more clear, I refer to the accompanying drawing in
which like letters denote like parts.
Fig. 1 is a section showing the water-outlet and steam-escape-valves.
Fig. 2 is a section taken at right angles to the plane of section of fig. 1 and shows
the float which forms the actuating part of the apparatus.
Fig. 3 is a section on the line y of Figs. 1 and 2.
S is a floating body which is attached to the arm C' and whose position is determined
by the level of the water in the boiler. The arm C' is so pivoted to the lever C at C³,
that the float is allowed a limited range of oscillation due to the constant unimportant
fluctuations of the water-level. But as soon as there is an undue rise or fall of the
water-level, the arm lifts or lowers the lever C, which being pivoted at a, will move
the valves B or A which are connected to it by means of the vertical cross-pieces c cl
and the pin b. The cross-pieces c c¹ which receive their motion from the oscillating
movements of the lever to which they are pivoted by means of the pin b terminate
each of them in a ball d d'. Both these, balls can to a certain extent move in
cylindical cavities bored in the lugs of the valves A and B, without affecting their

page_text: position but on this limited range of clearance being exceeded the balls hit against
the caps e e screwed to the lugs of the valves A and B and lift them out of their seats.
When in a state of rest i.e. as long as the balls move within the cylindrical slots the
valves A and Bare kept down partly by the pressure of steam and partly by the pressure
of the springs, which surround the guide-pins of the valves.
Valve B covers a valve-seat forming the entrance of the water-outlet-pipe E, whereas
the space above the upper valve A communicates with the valve-box G by means of
the steam-nozzle w. Fis a valve closing upwards and which is open as long as there
is no pressure of steam acting upon it. Steam that should pass through this valve
blows off by the funnel e, which is also in communication with the valve-box G through
the hole t. T is a pipe leading to the donkey-feed-pump. H is a valve kept on its seat
by means of a spring, whose tension being exceeded, the valve will be lifted and
steam will blow off into the atmosphere through the funnel U.
The action of the apparatus is as follows:
The undulations to which the water-level in a boiler is being constantly subjected
and which are of no consequence do not affect the position of the lever as the arm C
carrying the float S is so pivoted to lever C, that it can play through a limited range.
If now the water rises above its desired level, so that the motion of the arm C' exceeds
this limit of clearance-motion, the lover C will turn about the pivot a and lift the valve B
from its seat by means of the arms c' and the ball d' and in the same measure as the
superfluous water flows off at E the level cf water is restored to its normal height.
While the ball d' rises, also ball d will rise, but owing to the clearance-space above
it will not affect the valve A. If on the other hand the level sinks below its line of
safety, valve A will be drawn down from its seat by the arm c and ball d while the
ball simply moves downwards within the slot in valve B. As soon as A is opened,
steam will pass through w into the valve-box G and will escape partly through the
valve F which is hanging down loosely and partly through the hole into the
funnel and thence into the atmosphere. Thereby a hissing sound is produced,
which will draw the attention of the person in charge of the boiler to the fact that
the water has sunk below its safe level. On the level continuing to fall, the steam
will escape through w with increased velocity and finally close the valve F, so
that the steam will now either pass off to the donkey-pump through the pipe J and
set it to work, or the pressure of steam becoming excessive the safety-valvo H
will be lifted and steam will blow off through tho funnel producing a trumpet-
like sound.
By means of the handles h, ¹ it is possible to lift the valves A and B off
their seats so as to ascertain whether the apparatus is in perfect working condition.
Naturally the motion of valves A and B or handles may be utilised to
actuate an electrical signalling apparatus, which on the water reaching an abnormal
level will sound a bell or whistle.
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) In an automatic water-leveller for steam-boilers a float attached to a lever
pivoted within a chest D communicating with the boiler, in combination with a
valve or valves in said chest actuated by the said lever and float, for the purpose as
described.
2) In an automatic water-leveller for steam-boilers a float S attached to an
arm binged to a lever C pivoted within chest D communicating with the boiler,
in combination with a valve or valves in said chest actuated by said lever,
substantially, and for the purpose, as described.
3) In an automatic water-leveller for steam-boilers a float S attached to a jointed
lever pivoted within chest I communicating with the boiler, in combination
with two valves A and B actuated by said lever, substantially, and for the purpose,
as described.
4) In an automatic water-leveller for steam-boilers a float S attached to the jointed
lever CC pivoted within a chest communicating with the boiler, in combination

page_text: with the valves A and B in said chest actuated by said lever and opening in
opposite directions, substantially, and for the purpose as described.
5) In an automatic water-leveller for steam-boilers a float S attached to the jointed
lever CC pivoted within a chest communicating with the boiler, in combination
with the valves A and B in said chest actuated by said lever and opening in
opposite directions and held upon their respective seats by springs or other
suitable contrivance, substantially, and for the purpose as described.
6) In an automatic water-leveller for steain boilers a float S attached to the
jointed lever CC pivoted within a chest communicating with the boiler, in combina-
tion with the valves A and B in said chest actuated by said lever and opening
in opposite directions and held upon their respective seats by springs and or
other suitable contrivance, and with the steam-nozzle w and valve F, substantially,
and for the purpose as described.
7) In an automatic water-leveller for steam-boilers a float S attached to a jointed
lever CC pivoted within a chest communicating with the boiler, in combination
with the valves A and B in said chest actuated by said lever and opening in
opposite directions and held upon their respective seats by springs and or other
suitable contrivance and also with the hand-levers fitted to the chest, sub-
stantially, and for the purpose as described.
8) In an automatic water-leveller for steam-boilers a float S attached to a
jointed lever CC pivoted within a chest communicating with the boiler in com-
bination with the valves A and B within said chest and actuated by said lever
and valve F fitted loosely within the chest and actuated by steam escaping from H
and funnel u, substantially, and for the purpose as described.
9) In an automatic water-leveller for steam-boilers a float attached to a jointed
lever CC pivoted within a chest communicating with the boiler, in combination with
the valves A and B within said chest and actuated by said lever, and the valve F
funnel and the opening and safety-valve H and funnel u, substantially, and for the
purpose as described.
10) In an automatic water-leveller for steam-boilers a float S attached to a jointed
lever CC pivoted within a chest communicating with the boiler, in combination with
the valves A and B in said chest actuated by said lever and opening in opposite
directions, valve F, funnel e, opening t, safety-valve H, funnel and steam-pipe J
leading to the donkey-feed-pump, substantially, and for the purpose as described.
11) In an automatic water-leveller -for steam-boilers a float S attached to a jointed
lever CC pivoted within a chest communicating with the boiler, in combination with
the valves A and B in said chest and the vertical arm ce terminating in the balls or
heads d d', which slide in slots or cavities in said valves and lift the valve A and B
from their respective seats substantially, and for the purpose as described.
12) In an automatic water-leveller for steam-boilers, a floating-body S attached to
a jointed lever CC pivoted within a chest communicating with the boiler, in combina-
tion with the valves A and B in said chest, actuated by said lever and opening in
opposite directions and with an electric signalling-apparatus contact being made by
the motion of the valves A and B substantially, and for the purpose as described.
Lator Korlin thie 7th do
Vakain nor
Ustod Korto this thin
ההת. הם מיתת n
MIGUEL DEIS.
By A. Kuhnt & R. Deissler,
38, Alexanderstrasse, Berlin C, Germany,
Attorneys.