Improvements in Devices for Automatically Controlling the Feed of Water to Steam-boilers.
Year: 1893

page_text: Date of Application, 25th Sept., 1893
Complete Specification Left, 7th July, 1894-Accepted, 11th Aug., 1894
PROVISIONAL SPECIFICATION.
Improvements in Devices for Automatically Controlling the Feed of
Water to Steam-boilers.
We, FERDINAND SCHNEIDER and CONRAD ALDER, both of Renens, near
Lausanne, in the Republic of Switzerland, do hereby declare the nature of this
invention to be as follows:-
The object of the invention is a device intended to automatically start and stop
the feed-apparatus of steam-boilers.
In the accompanying drawings,
Figure 1 is a longitudinal section through the axis of the self-acting cylinder.
Figure 2 is a cross-section through the middle of the same.
Figure 3 is a side view and
Figure 4 a front-view of an arrangement showing, by way of example, a mode, of
applying my invention to a steam-huiler.
The improved device is composed of a cylinder A in which works a piston B, the
rod F of which is guided in stuffing-boxes A' A2 provided in the ends of the
cylinder A. The said cylinder is provided with two admission ports or holes D
and D' which lead to the plug of a cock C provided with three openings C₁E E¹ or
with any other suitable distributor. The steam under pressure from the boiler
passes to the cylinder A through a tube a and the cock C. Another tube
(Figure 2) is provided for the outlet of the steam which has done its work in the
cylinder A. The opening C provided in the plug of the cock C enables the steam
passing through the tube a to be distributed so as to act either upon the one or upon
the other face of the piston B, by means of the ports or holes D' or D whilst the
channel E or E enables the steam which is compressed by the opposite face of the
piston B to escape through the tube . The rod of the piston B is directly or
indirectly connected with the inlet valve of a feed-pump or with the levers of the
injector-valves or with the driving-gear of any other feeding-apparatus.
The control of the regulator-cock is automatically effected by means of a
suitable float actuated by the water-level in the boiler. This float may be provided
either in the generator itself or in a separate vessel, communicating on the one hand
with the water-chamber and on the other hand with the steam-chamber of the
boiler, as shown in Figures 3 and 4. In these Figures X is a cylindrical vessel or
receiver provided with two tubulures K and K' the first of which communicates
with the water-chamber, and the second one with the stean-chamber of the
generator, so that the water-level in the vessel X will always correspond to that in
the boiler. The vessel or receiver X contains a float H linked at its upper part to
one of the ends of the side-lever h pivoted to the arbor I, and the other end of
which carries a balance-weight y. On the arbor I is moreover secured an arm h
connected by means of the connecting-rod " to the starting-lever of the cock C.
The motions of the float H will consequently be transmitted to the regulator-cock C,
and the piston B will more either to the right or to the left according as the float
ascends or descends, and it will start or stop the feed apparatus of the boiler by
means of the rod F.
Dated thin 05th Ja...
1002

page_text: Improvements in Devices for Automatically Controlling the Feed of
Water to Steam-boilers.
I, FERDINAND SCHNEIDER and CONRAD ALDER, both of Renens, near
Lausanne, in the Republic of Switzerland, do bereby 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 invention is a device intended to automatically start and stop
the feed-apparatus of steam-boilers.
In the drawings left with our Provisional Specification
Figure 1 is a longitudinal section through the axis of the self-acting cylinder.
Figure 2 is a cross section through the middle of the same.
Figure 3 is a side view and
Figure 4 a front view of an arrangement showing, by way of example, a mode of
applying my invention to a steam-engine.
The improved device is composed of a cylinder A in which works a piston B, the
rod F of which is guided in stuffing-boxes A' A provided in the ends of the
the cylinder A. The said cylinder is provided with two admission ports or holes D
and D which lead to the plug of a cock C provided with three openings C'E E
or with any other suitable distributor. The steam under pressure from the boiler
passes to the cylinder A through a tube a and the cock C. Another tube b
(Figure 2) is provided for the outlet of the steam which has done its work in the
cylinder A. The opening C provided in the plug of the cock C enables the steam
passing through the tube a to be distributed so as to act either upon the one or upon
the other face of the piston B, by means of the ports or holes D' or D whilst the
channel E or E enables the steam which is compressed by the opposite face of the
piston B to escape through the tube b. The shank of the piston F is directly or
indirectly connected with the inlet valve of a feed-pump or with the levers of the
injector-valves or with the driving-gear of any other feeding-apparatus.
The control of the regulator-cock C is automatically effected by means of a
suitable float actuated by the water-level in the boiler. This float may be provided
either in the generator itself or in a separate vessel, communicating on the one hand
with the water-chamber and on the other hand with the steam-chamber of the
boiler, as shown in Figures 3 and 4. In these figures X is a cylindrical vessel
or receiver provided with two tubulures K and K' the first of which communicates
with the water-chamber, and the second one with the steam-chamber of the
generator, so that the water-level in the vessel X will always correspond to
that in the boiler. The vessel or receiver X contains a float H linked at its
upper part to one of the ends of the side lever pivoted to the arbor I,
and the other end of which carries a balauce-weight y. On the arbor is
moreover secured an arm connected by means of the connecting rod to the
starting-lever of the cock C. The motions of the float H will consequently be
transmitted to the regulator-cock C, and the piston B will move either to the right
or to the left according as the float ascends or descends, and it will start or stop the
feed apparatus of the boiler by means of the rod F.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manuer the same is to be performed, we declare that what we
claim is :-
A device for automatically working the feeding-apparatuses of steam-boilers,
substantially composed of a cylinder A with piston B and a three-way cock C,
acted upon by means of a fluat contained either in the generator itself or in a

page_text: receiver communicating with the latter substantially as shown in the drawings and
described.
Dated this 7th day of July 1894.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C., Agents for the Applicants.