Improvements in Automatic Feed Regulators for Boilers and other Vessels.
Year: 1893

page_text: Date of Application, 30th Oct., 1893
Complete Specification Left, 28th July, 1894-Accepted, 20th Oct., 1894
PROVISIONAL SPECIFICATION.
Improvements in Automatic Feed Regulators for Boilers and other
Vessels.
I THEODORE RYLAND of Number Twenty-six Herbert Place in the County of
the City of Dublin Esquire Barrister at Law do hereby declare the nature of this
invention to be as follows :-
This invention deals with feed pumps for boilers and other vessels in which it is
desirable that the fluids contained 'therein should be maintained at a constant level.
In carrying out this invention I place on the surface of the fluid a float (a in
annexed drawing) attached to and moving a lever (.) and from the lever I suspend
a vertical piston rod (c.) with a loosely fitting piston or plunger (d.) which rises and
falls in the upper part of the feed pipe. In this upper part of the feed pipe I make
two apertures one (e) above the other (f) and into them I lead two branches of the
feed pipe (9.) coming from the supply and just below the lower aperture I continue
the vertical part of the pipe until it enters a shunt or pipe (h) returning the liquid
to the supply.
The rod of the plunger is of such a length that when the surface of
the liquid in the boiler or other vessel is at the level which it is desired to maintain
the plunger stops the upper of the two apertures and leaves the lower aperture open
so that the liquid coming through the lower branch of the feed pipe can pass into
the shunt. When the level of the liquid sinks, the float sinks and depresses the
plunger, opening the upper aperture and closing the lower. As the plunger is not
tight fitting it will be desirable to place collars (i. j.) in the feed pipe one above and
the other below the intended maximum range of the plunger so that the plunger
pressing against the upper collar may prevent the possibility of any liquid getting
into the boiler when the float and plunger are at their intended highest position and
in a similar way the plunger pressing against the lower collar will prevent any
liquid passing into the shunt when the float has fallen below the proper level. The
size of the float and point of attachment of the rod to the lever should be such that
the float may efficiently work the plunger, the attachment being nearer to or farther
from the fulcrum according as the pressure in the boiler or the weight of the column
of water above the plunger is expected to be great or small. The part of the feed
pipe in which the two apertures are made may be within the boiler or vessel to be
kept full, the supply and shunt pipes entering at the top or sides but where circum-
stances permit it will be better that the part containing the apertures should be
below the boiler or vessel so that only one pipe need pass into the boiler or vessel.
Dated this 28th day of October 1893.
THEODORE RYLAND.

page_text: COMT LEIE SPECIFICATION.
Improvements in Automatic Feed Regulators for Boilers and other
Vessels.
I THEODORE RYLAND of Number Twenty-six Herbert Place in the County of
the City of Dublin Esquire Barrister at Law 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 feed pumps or pipes for boilers and other vessels and is
a method of regulating and diverting the supply in such a way that any desired
level may be constantly maintained without any supervision. In fact the invention
is that of an automatic feed regulator.
When a continuous supply is obtained from a pump or injector or from a higher
level place a float on the surface of the liquid in the boiler or other vessel which
causes a rod to rise or fall as the surface rises or falls. It is a matter of convenience
whether the rod is attached directly to the float or through the intervention of a
lever. The rod carries a light loosely fitting plunger working freely in a vertical
part of the feed pipe. The feed pipe (7.) Figs. 1, 2, has two branches (e. f.) one
admitting the supply above the plunger (d) when the plunger is lowered, the other
admitting below the plunger when the plunger is raised. That which is admitted
above the plunger passes into the boiler or other vessel, and that which is admitted
below the plunger passes off by a shunt, or escape pipe (h). The level is prevented
from rising too high by preventing further influx not by permitting the contents to
overflow.
It may in some cases be convenient to admit below the plunger and draw off the
supply that comes through the upper branch.
The plunger (d) should rest or press against rings or collars (i. j. j) in the
vertical part of the feed pipe so placed that the plunger may act in certain positions
as if it closely stopped the pipe.
The delivery may be at any part of the boiler and it may be useful to line the
vertical part of the feed pipe with porcelain or other non conducting and non
corroding substance thus preventing any injury happening to the plates of the boiler
from the effect of a sudden change of temperature and also preventing rust which
might interfere with the action of the plunger.
Where the pressure in the boiler is very great it will be better to take it off the
plunger than attempt to use a larger float or long lever. This may be done by
continuing the rod (c) through the plunger (d) and then attaching a second
plunger. (d) Fig. 2. at the lower end of the rod and admitting the pressure below
the second plunger.
In Fig. 1. I have drawn in section a regulator suitable to cases in which there is
not much pressure in the boiler. The rod (c) is to be supported by a float or a
lever worked by a float. The liquid is supplied through the pipe (9.). When the
rod (c) raises the plunger (d) it closes the branch (e) of the feed pipe (g) and
when the plunger is lowered it opens the branch (e) and closes the other (f.).
When the plunger touches either of the rings or collars (i. j.) it completely stops
the flow through the part of the pipe where it touches a collar. Thus the liquid
continues to pass into the boiler or other vessel as long as the plunger (d) rests on
the collar () and it cannot pass into the boiler if by any possibility the plunger
comes in contact with the collar (i.).
In Figs. 2. 3. I have drawn in section a regulator suited for boilers in which
there is much pressure. In Fig. 2. the rod (c) is continued through the plunger (d)
and supports a second plunger (d'). For convenience I have drawn the shunt (h)
as passing out at the side opposite to the feed pipe (g). The collars (i. j.) serve
for the plunger (d) and the collars (¿¹ j¹) serve for the second plunger (d). When

page_text: the plungers (d. d¹) rest respectively on the collars (j. j¹) all escape by the shunt (h)
is cut off. And should the plungers touch the upper collars (i. ) no liquid could
enter the boiler either above the upper plunger or below the lower. The liquid in
the boiler has free access below the lower plunger (d') as shown more clearly by
Fig. 3. which is a transverse vertical section of Fig. 2.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is
1. That by the combined use of a float, plunger, branch feed pipes, collars and
shunt in the manner hereinbefore described the feed supply to vessels can be
automatically regulated.
2. The construction of feed pipe regulators in the manner and on the principles
described in this Specification and in the plates annexed.
.
· Dated this 26th day of July 1894.
THEODORE RYLAND.