Improvements in Apparatus for Supplying Water to Boilers
Year: 1888

page_text: Improvements in Apparatus for Supplying Water to Boilers
T, SYDNEY PITT of Sutton, in the County of Surrey, Gentleman, (a communication
to me from abroad by Timothy J Kicley, of the City, County and State of New
York, United States of America), do hereby declare the nature of this invention
and in what manner the sune is to be performed to be particularly described and
ascertained in and by the following statement
11
This invention relates to a new and useful apparatus for carrying out an improved
system of returning and feeding water to ste um-boilers, and a new and useful valve,
in combin ition with such returning trap for returning sud water of condensation
My invention consists in combination of in equalizing steam trap which is at
times filled with water, and at times emptied by the flow of witer from said trap to
the boiler, with a receiving tank and connections for receiving the water of con-
densation and delivering the same to the return steam trap at intervals when required
Figure 1, represents a general view of my system, and Figures 2 and 3, a detailed
view of the valve operated by the stem V, shown in Figure 1
The
A represents the steam drum with the bottom placed within the enclosed brick
casing B represents an automatic return steam trap which connects with the steam
space of the boiler by the pipe O, and with the water space of the boiler by the pipe D,
provided with a check valve, the opening of the pipe D passing up through the base
of the trap, as shown Within the tiap is the float H, which operates the lever J,
weighted at a The pivoted arm K, connects the lever J, with the lever L, and is
provided with a slot at its upper extremity, as shown, to allow of lost motion, and a
pin on the lever L, sliding through the slot at the upper end of the lever K
lever L, operates the sector b, provided with lugs or projections at either side for
throwing the arm c, provided with weight d This arm cis provided with a pin engaging
in the slot e, at the end of the arm f which operates the arm g and the valve stem V
This arrangement permits of the entry and discharge of a certain amount of water in
the trap B without immediately operating the steam valve stem V Other well known
forms of automatic return steam trips can be used The return water of condensation
from the steam heating system enters the chamber E, placed at the bottom of the
system It may so enter it through the inlet F from the inlet G, or in other suitable

page_text: manner These inlets should preferably be provided with check valves delivering
toward the chamber E h is a blow out by means of which the chamber E can be
emptied on occasions The equalizing valve of the trap is shown fully in Figures 2
and 8, which consists generally in a suitable valve chest A shaft V enters sud chest,
which is controlled by the flont in the trap in the well-known way Attached to
this shaft V are two arms W W, engaging with two valves S and T The valve S
sents upward and the valve T seats downward In the position shown in Figure 3,
steam will enter through the pipe O and pass to the trip therefore causing the flow
of the water contained in suid trap to the boiler If the shaft V, be rotated to the
left or in the opposite direction to the hands of watch, the valve T will be closed and
the valve S opened, thereby allowing the trap B to exhaust through the pipe N This
exhaust may be taken into the general heating system, or need not be employed at all
under some circumstances, but it can be shut off by closing the pipo N It will be
observed that by the same motion of the shaft V the valve T, 1s opened and the valve S
is closed, or vice versa, although both valves are above the shaft
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 whit I
claim is
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1 The combination of the lower receiving chamber E, placed at the bottom of the
system and connected with the upper return steam trap placed above the level
of the boiler, and the connections from the top of the boiler to the top of the trap,
and from the bottom of the trap below the water level of the boiler, and a valve for
admitting and shutting off the flow of steam from the boiler for the purpose of
returning the water of condensation from the trap to the boiler, substantially as
described
2 The double valve shown, which consists of a shaft V, provided with arms W W
projecting at right angles to and on the same side of the shaft V, and two valves S
and T, one of which seats down, the other of which seats up, the valve S being closed
while the valve T is opened and vice versa, substanti illy as described
3 The combination of the lower chamber, provided with inlets and check valves F
and G, delivery pipe C to the upper part of the steam trap, delivery pipe D from the
lower part of the steam trap to the boiler, equilizing steam pipe O, and automatic
valve operated in the steam pipe O, substantially as described
Dated this 11th dow of June 1888