Improvements in Steam-traps, also applicable for other purposes.
Year: 1899

page_text: Date of Application, 16th Aug., 1899
Complete Specification Left, 16th May, 1900-Accepted, 16th Aug., 1900
PROVISIONAL SPECIFICATION.
Improvements in Steam-traps, also applicable for other purposes.
We, THOMAS HENRY MASSEY, of 8, Warnford Street, Wigan, in the County of
Lancaster, Mechanical Engineer, and LAMBERT ASHWORTII, of 304, Bolton Road,
Radcliffe, in the County of Lancaster. Terra Cotta Manufacturer, do hereby de-
clare the nature of this invention to be as follows:―
.
This invention relates to the non-expansive type of steam-traps and has for
its object simplicity of construction, durability and reliability.
To this end we form a vessel, preferably cylindrical, having a valve seating
across in or about the middle and a steam inlet above and a condensed water inlet
and outlet below the same.
The said seating we furnish with a valve having a spindle carrying at its free
end another valve of less area and adapted to operate upon a seating formed on
the said condensed water outlet, the said steam and water inlets being both con-
nected to the steam pipe from which it is intended to draw off the condensed
water.
The space in the vessel above the said large valve is formed with an outlet for
draining the steam which may condense and releasing the steam pressure therein,
which outlet is controlled by the said large valve and may be connected to the
condensed water outlet controlled by the said smaller valve.
The steam trap described operates as follows:-
If there is an absence of condensed water in the steam pipe, to which the trap
is connected, the said large valve will be exposed to the pressure of steam or
both sides and thus remain in equilibrium out of action.
When condensation of steam takes place the condensed water accumulates in
the vessel below the said large valve by gravity and by reason of its head or
pressure raises the latter and thereby the smaller or outlet valve connected there-
with from its seating, thus allowing the condensed water to escape through the
said outlet.
As the trap empties of condensed water, the steam on the top together with
the weight of the large valve causes the latter and thereby the condensed water
outlet valve to drop upon their seatings and thus be closed again.
According to a modification we may form the steam inlet concentric with and
above the said large valve and with a seating adapted to be operated upon by a
small valve controlled by the said large valve, so as to allow of cutting off the
steam inlet whilst the large valve is being lifted off its seating by the head of the
condensed water accumulated below the same.
The invention described may also be used for regulating the supply or keeping
the water in boilers or tanks at a fixed level or of allowing tanks to be emptied
after the water has risen to a certain height, in which cases however the said
steam inlet is dispensed with.
1
1542 de of August 1899
F. BOSSHARDT & Co.,
Agents to Applicant.

page_text: Improvements in Steam-traps, also applicable for other purposes.
We, THOMAS HENRY MASSEY, of S, Warnford Street, Wigan, in the County of
Lancaster, Mechanical Engineer, and LAMBERT ASHWORTH, of 304, Bolton Road,
Radcliffe, in the County of Lancaster, Terra Cotta Manufacturer, do hereby de-
clare 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 the non-expansive type of steam-trap and has for
its object simplicity of construction, durability and reliability.
And in order that our invention may be more fully understood we have caused
to be appended hereunto one sheet of drawings marked with letters of reference
indicating like parts in the various figures.
Figs. 1 & 2 are vertical sections of two different forms in which our invention
may be carried out, and Fig. 3 at a reduced scale a side view thereof applied to
a steam vessel.
In carrying out our invention and referring to Fig. 1 we form a vessel a, prefer-
ably cylindrical, having a valve seating across in or about the middle and a
lateral steam inlet c above and a lateral condensed water inlet d and concentric
condensed water outlet e below the same.
The said seating we form with a valve f having a spindle g depending there-
from carrying at its free end another valve h of less area and adapted to operate
upon a seating i formed on the said condensed water outlet c, the said steam and
water inlets being both connected to the steam vessel k, see Fig. 3, from which
it is intended to draw off the condensed water, by means of the pipe l, m re-
spectively.
The space n in the vessel a above the large valve f is formed with an outlet o
for draining the steam which may condense and for releasing the steam pressure
therein. This outlet is formed down the side and along the bottom of the
vessel and its outer orifice is controlled by the condensed water outlet valve h
depending from the large valve f.
The steam trap described operates as follows:-
If there is an absence of condensed water in the steam vessel a to which the
trap is connected, the large valve f will be exposed to the pressure of steam on
both sides and thus remain in equilibrium out of action.
When condensation of steam takes place, the condensed water accumulates in
the space below the large valve f by gravity and due to its head or pressure
raises the latter and thereby the smaller or outlet valve h connected therewith
from its seating i, thus allowing the condensed water to escape through the
outlet e.
As the trap empties of condensed water, the steam in the space n together with
the weight of the large valve f causes the latter and thereby the condensed water
outlet valve h to drop upon their seatings b & i respectively and thus be closed
again.
If desirable an annular groove gl may be formed in the vessel a below the
valve seating b and by a side passage connected with the condensed water out-
let e to carry off the water which may rise into the space n.
Referring to Fig. 2, according to a modification of our invention we may form
the steam inlet e concentric with and above the large valve f and with a seating s
adapted to be operated upon by a small valve t connected with and controlled by
the large valve f, the space above and that below the valve t being linked to-
gether by the port u so as to allow of cutting off the steam inlet whilst the large

page_text: valve is being lifted off its seating by the head of condensed water accumu-
lated below the same.
According to a further modification of our invention we may dispense with
the outlet e and valve h and form in place thereof the water outlet at the side
of the casing a and thus use only the top or middle valve f as will be readily
understood without special illustration.
The invention described may also be used for regulating the supply or keeping
the water in boilers or tanks at a fixed level or of allowing tanks to be emptied
after the water has risen to a certain height, in which cases however the said
steam inlet is dispensed with as will be readily understood.
Having now particularly described and ascertained the nature of our said in-
vention and in what manner the same is to be performed, we declare that what
we claim is:-
1st. In steam traps, a vessel having a steam and a water space, the former having
a steam inlet and the latter a water inlet and outlet and the upper of the said
spaces a seating for the reception of a valve raised by the water pressure under-
neath and retained on its seating partly by the steam pressure in the said upper
space and partly by its own weight, all substantially as and for the purpose set
forth.
2nd. In steam traps, a vessel having a steam and a water space, the former
having a steam inlet and the latter a water inlet and an outlet and each of the
said spaces a seating for the reception of a valve which valves are connected with
each other and of different areas, the said larger valve being raised by the pressure
of water in the respective space and lifting the said water outlet valve off its seating
allows the water to escape through the same, whilst in the absence of condensed
water, the said larger valve is retained on its seating partly by the steam pressure
in the respective space and partly by its own weight, all substantially as set forth.
Dated this 15th day of May 1900
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicants.
F. BOSSHARDT & Co.,
4, Corporation Street, Manchester, Agents to Applicants.