Water Regulating Apparatus for Steam Boilers.
Year: 1897

page_text: PROVISIONAL SPECIFICATION.
Feed Water Regulating Apparatus for Steam Boilers.
I, EDWARD CHARLES PECK, of 18, Victoria Road, Old Charlton, in the County
of Kent, Engineer, do hereby declare the nature of this invention. to be as
follows:-
The feed water regulating apparatus for steam boilers is constructed in the
following manner: A vertical partially revolving rod or shaft is mounted in
suitable bearings, inside the boiler, to this vertical partially revolving rod are
secured horizontal arms having on them at their outer ends paddles, floats,"
cups, or blades, the lower edges or lips of which shall be in a position near to the
normal level of the water in the boiler. On the vertical rod or shaft, is secured
a lever or crank the other end of which is jointed to one end of a connecting rod,
the other end of this connecting rod being attached to the end of a horizontally
moving rod which passes through one side or end of the boiler which is kept tight
by means of a stuffing box with gland and packing, and is then attached to some
suitable reciprocating part of the boiler "feed pump," so that when the water in
the boiler commences to rise above its normal level it will come in contact with
the paddles, "floats," cups, or blades, attached to the vertical partially revolving
rod; and the resistance of the water to their free movement will throw such an
amount of work upon the feed pump as to cause it to lessen the number of its
strokes, and in consequence, the quantity of water supplied to the boiler, until
the water has again reached its proper level. Any other suitable means may be
employed to convert the reciprocating motion of the pump into a partially revolving
or circumferencial motion for the paddle or float wheel.
The horizontal arms, with their paddles, floats, cups, or blades may, in lieu of
being fastened to the vertical rod previously mentioned, be attached direct to the
horizontal rod passing through the boiler, which rod may be worked from the
feed pump
as in the arrangements already described.
"
"
Dated this 20th dor of November 1807

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:
This apparatus is for regulating the supply of feed-water to steam-boilers.
Figure 1 of Sheet 1 of the drawings shows a part section of a boiler and an
elevation of one form of the apparatus.
Figure 2 is a plan of Figure 1.
Figure 3 Sheet 2 is a sectional view of the apparatus arranged to work outside
a boiler.
And Figure 4 is a plan of Figure 3.
The feed water regulating apparatus for steam boilers when made according
to Figures 1 and 2 is constructed in the following manner:-A vertical partially
revolving rod or shaft (a) is mounted in suitable bearings (b, 61) inside the boiler (c),
to this vertical partially revolving rod or shaft (a) are secured horizontal arms (d),
the number of these may be varied, having on them at their outer ends paddles,
floats, cups, or blades (e), the lower edges or lips of which are in a position near
to or at the normal level of the water (f) in the steam boiler to which the
apparatus is attached. On the rod or shaft (a) is secured one end of a lever or
crank (9), the other end being jointed to a connecting rod (h) which is attached at
its opposite end to a horizontally moving rod (2) which passes through one side or
end of the boiler (c) which is kept tight by means of a stuffing-box (k) with gland
and packing and is then attached to some suitable reciprocating part of the boiler
feed-pump (7) so that when the water in the boiler (c) commences to rise above
its normal level it will come in contact with the paddles, floats, cups, or blades (e)
that are attached to the arms (7) on the vertical partially revolving rod (a); and
the resistance to the free movement of the paddles, floats, cups, or blades (e), caused
by the water, will throw such an amount of work upon them, and through them
upon the feed-pump by reason of the connection therewith, as to cause the number
of strokes of the said feed-pump to be lessened, and consequently the quantity of
water supplied to the boiler will also be lessened until the water has fallen to its
proper level.
The feed water regulating apparatus may be placed outside
a. boiler
as well as inside, as it may be, and in some cases it is, preferable to do this; when
placed outside it is made in accordance with Figures 3, and 4 of the
drawings.
The paddles, floats, cups, or blades (e) being attached to arms or to a disc (d),
the latter is shown on the drawings, enclosed in a metal case (m) the interior of
which is put into communication with the steam space (n) and the water space (o)
of the boiler to which the apparatus is attached by pipes (7) and (g). The vertical
partially revolving rod or shaft (a) passes through the top of the case (m) and the
centre of the disc (7), and its lower end rests in a bearing (61) at the bottom of
the case (m), and is held in a bearing (b) at the top of the case (m). To the upper
end of the vertical rod or shaft (a) is fixed one end of the crank or lever (9), and
the opposite end is secured to a connecting rod (h) which is attached to some
reciprocating portion of a feed pump (). In this arrangement of the apparatus
the resistance to the movement of the feed-pump, when the level of the water in
the boiler is above the normal, is caused in exactly the same manner as in the
first instance, namely by the action of the paddles, floats, cups, or blades (e) being
driven by the feed-pump to and fro in the water of the boiler when it rises above
its normal level, which action causes the feed-pump to make fewer strokes, and
consequently to deliver less water to the boiler.
The length of the crank (g) must in all cases be greater than half the stroke of
the connecting-rod (h).
Any other suitable means than that described may be employed to convert the
reciprocating motion of the pump into a partially revolving or circumferencial
motion for the paddles, floats, cups, or blades (e).

page_text: 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:-
The feed water regulating apparatus for steam boilers substantially as herein-
before described, and shown by the drawings.