An Improved Heat Regulating Device for Incubators. Gas Ovens, Boiling Vats and other uses which device can also be used as a Steam Trap and Steam Radiator.
Year: 1898

page_text: Date of Application, 20th Dec., 1898
Complete Specification Left, 19th Sept., 1899-Accepted, 28th Oct., 1899
PROVISIONAL SPECIFICATION.
An Improved Heat Regulating Device for Incubators. Gas Ovens,
Boiling Vats and other uses which device can also be used as a
Steam Trap and Steam Radiator.
I, FREDERICK LAMPLOUGHI, of 5, Green Terrace, Rosebery Avenue, in the County
of London, Engineer, do hereby declare the nature of this invention to be as
follows:
-
The invention has for its object an improved construction and arrangement of
apparatus which shall be very sensitive to differences of temperature and capable
of regulating the supply of steam or gas to various apparatuses and which can
be utilized as a steam trap and steam radiator.
at
In carrying my invention into effect I employ a casting or valve body, having
outlet opening for
one end an inlet opening and at the other an
or gas used for heating purposes, close to the said inlet is
the steam
a
The
to the
chamber containing a
or
screw stop
inlet valve and close
said outlet is a chamber containing an outlet valve capable of ready regu-
lation by means of a screw extending through the valve body and capable of
being turned by a key and fixed in its adjusted position by a lock nut.
screw stop or inlet valve has its stem passed through a stuffing box to the exterior
so that it can be readily adjusted or so that the inlet passage can be readily closed
when desired.
To the inlet chamber is rigidly fixed one leg of a looped metal tube and to the
outlet chamber is connected the other leg of said tube which latter leg passes
through and is capable of motion in a stuffing box on said outlet chamber, the
inner end of this portion of the tube also serves as a valve seat or valve to act
in combination with the outlet valve or valve seat.
The two legs of the tube extend any suitable distance from the valve body and
the loop shaped connecting part is flattened to enable it to act as a spring whilst
at the same time it affords free communication from one leg of the tube to the
other. At or close to the junction of the loop shaped portion of the tube with the
legs thereof are brazed trunnion rings and on the trunnions are mounted a pair
of cross bars forming a lever at a point on said lever between the two legs of the
tube and preferably nearer that attached to the inlet chamber is connected one
end of a metal rod the other end of which is connected to the valve body.
The looped tube is made of an alloy or metal that will give good expansive
properties, such as tin and copper combined, or zinc and copper, the ordinary
commercial brass, German silver or copper tubes being suitable for the purpose.
The rod is formed of a metal that has poor expansive property when subjected to
heat, preferably iron or steel.
The action is a follows;-When used in connection with an incubator worked
by gas or steam, the looped tube is placed in the liquid container where it will
expand and close off at any desired temperature according to the adjustment of
the outlet valve. By the expansion of the leg of the tube connected with the
inlet chamber transmitting its expansion to the leg connected with the outlet

page_text: chamber by means of the lever in an increased ratio according to the position
of the fulcrum or axle of said lever, to which expansion or movement can be
added that due to the expansion of the latter leg of the tube I obtain a large,
ratio of expansion which on a given temperature being reached acts more or
less to close the outlet valve for the steam or gas.
The apparatus is equally applicable to gas ovens as to boiling vats but in the
former case the tubes may be of much lighter material.
When used as a steam trap the apparatus is connected to the lowest part of
the steam pipe; as usual and is so adjusted that when filled with condensation
water the outlet valve will open to permit of its discharge but on steam entering
it the outlet valve will close.
When used as a radiator it is laid lengthwise under the seat of a railway car-
riage, for example, and by adjusting the outlet valve by its regulating screw
practically any range of temperature up to the maximum can be maintained.
In this case the straight tubes may be gilled as in ordinary steam radiators.
It is evident that a solid rod of like shape may be substituted for the looped
tube, in which case communication will be made direct from the inlet chamber
to the outlet chamber of the valve body.
Dated this 20th day of December 1808
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Agents.
An Improved Heat Regulating Device for Incubators, Gas Ovens,
Boiling Vats and other uses which device can also be used as a
Steam Trap and Steam Radiator.
I, FREDERICK LAMPLOUGH, of 5, Green Terrace, Rosebery Avenue, in the County
of London, Engineer, 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:-
-
The invention has for its object an improved construction and arrangement of
apparatus which shall be very sensitive to differences of temperature and capable
of regulating the supply of steam or gas to various apparatuses, and which can
be utilized as a steam trap and steam radiator.
I will describe my invention with the aid of the accompanying drawings, in
which:
.
Fig. 1 is an elevation of a heat-regulating device capable of regulating the
supply of steam or gas to various classes of apparatus, and which can be used as
a steam trap and as a heat regulated steam radiator.
Fig. 2 is an elevation of the same partly in section and drawn to an enlarged
scale.
Fig. 3 is a plan of the lower parts of Fig. 2.
Fig. 4 is a cross section of the loop portion of expansion rod, and
Fig. 5 is a sectional elevation of parts showing a modification.
In all the figures like parts are indicated by similar letters of reference.
In carrying my invention into effect according to the arrangement shown at
Figs. to 4, I employ a casting or valve body u having at one end an inlet
opening a¹ and at the other end an outlet opening a² for the steam or gas used
or heating purposes. Close to the inlet a¹ is a chamber a³ containing a screw
stop or inlet valve 4, and close to the outlet a² is a chamber 5 containing an
outlet valve or valve seat a capable of ready regulation by means of a screwed

page_text: rod a supporting it and extending through the valve body a; this screwed rod
is capable of being turned by a key applied to the outer end thereof, and of
being fixed in its adjusted position by a lock nut 8.
The screw stop or inlet valve at has its stem a passed through a stuffing box 10
to the exterior, so that, by means of the hand wheel a¹¹, it can be readily
adjusted, or so that the inlet passage can be completely closed when desired.
Above the inlet chamber is rigidly fixed to the valve body one leg of
a looped hollow metal rod bb1b2, and to the outlet chamber a is connected the
other leg of said hollow rod, which leg 62 passes through and is capable of
motion in a stuffing box a on said outlet chamber 5; the inner end of the
leg 62 is of hard metal and serves as a valve seat or valve to act in combination
with the outlet valve or valve seat aº.
The legs 62 of the hollow rod extend any suitable distance from the valve
body a, and the loop shaped part b¹ is flattened, as shown at Fig. 4, to enable it to
act as a spring, whilst at the same time it affords free communication from the
leg & to the leg 62 of the hollow rod.
At or close to the junction of the loop shaped part 6 with the legs are
brazed trunnion rings c, and on the trunnions care mounted a pair of cross
bars & forming a lever; at a point d' on said lever & between the two legs bbs
of the hollow rod, and preferably nearer the leg b, is connected one end of a
rod e, the other end of which is connected to the valve body a
The looped hollow rod 6 61 62 is made of an alloy or metal that will give good
expansive properties, such as tin and copper combined or zinc and copper; the
ordinary commercial brass, German silver or copper tubes being suitable for the
purpose. The rod e is formed of a metal that has poor expansive property when
subjected to heat, preferably iron or steel.
The apparatus is equally applicable to gas ovens as to boiling vats, but in
the former case the looped hollow rod 6 61 62 may be of much lighter material.
When the apparatus above described is used as a heat radiator, it is, for
example, laid lengthwise under the seat of a railway carriage and, by adjusting
the outlet valve a by its regulating screw a', practically any range of tempera-
ture up to the maximum can be maintained. In this case the legs bb may be
gilled, as shown at 6*, as in ordinary steam radiators.
In the modification shown at Fig. 5, the hollow rod bbb hereinbefore
described, is replaced by a solid rod of like shape but of smaller diameter, and
in this case communication is made direct from the inlet chamber a³ to the
outlet chamber a5 by a connecting passage a¹3 made in the valve body a; in this
case the seat of the inlet valve a is formed in a web a14, the valve a* is
attached to the screwed rod a and passes through a hole in a web a¹5, and such
valve a* is hollow and is formed with holes a¹6 at the lower part to form com-
munication between one side and the other of the web a15. The end 63* of the
leg bis coned or otherwise formed to act in combination with the valve a*.
The rod e is also in this case formed with a forked lower end e¹ to fit outside
the valve body a, and is connected thereto by pins or trunnions al passed through
the holes in the fork e¹ and screwed into the valve body a.
When
The action of the arrangement shown at Figs. 1 to 4 is as follows.
used in connection with an incubator worked by gas or steam, the looped hollow
rod bbb is placed in the liquid container, where it will expand and close off at
any desired temperature, according to the adjustment of the outlet valve a. By
the expansion of the leg 6 transmitting its expansion, by means of the lever d,
to the leg in an increased ratio, according to the position of the fulcrum or
axle d of said lever, and by the expansion of the leg 2, I obtain a large ratio
of expansion which, on a given temperature being reached, acts more or less
to close the outlet valve a and thus regulate the supply of steam or gas.
The apparatus represented at Figs. 1 to 4 may however be otherwise applied,
and it may be used as a steam trap. In this latter case the inlet opening a¹ is
connected to the lowest part of a steam pipe as usual, and the valves are so

page_text: adjusted that when the apparatus is filled with condensation water, the outlet
valve a will open to permit of its discharge, but on steam entering it the outlet
valve a will close.
In
The modified construction of apparatus shown at Fig. 5 may be used in cases
where the steam or gas is not required to pass through the rod b¹ b².
this case the said rod is solid and the steain or gas passes directly from the
inlet a to the outlet a through the passage 3 formed in the valve body a;
otherwise the action of this latter modification is similar to that of the apparatus
shown at Figs. 1 to 4.
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:
-
1. In a heat-regulating device capable of being used also as a steam trap
and steam radiator, the combination with a valve body having an adjustable
inlet valve, and an adjustable outlet valve, of a looped expansion rod formed with
two legs connected together by a flattened loop shaped part, one of said legs
being fixed rigidly to the valve body, whilst the end of the other is capable of
sliding in a stuffing box and acts as the ouflet valve seat, a comparatively non-
expanding rod attached at one end to the valve body, and a lever attached at
each end to trunnions fixed on the legs of the expansion rod near their junction
with the flattened loop part thereof and having its fulcrum at the upper end
of the comparatively non-expanding rod, substantially as herein set forth and for
the purpose stated."
2. In a heat-regulating device capable of being used also as a steam trap and
steam radiator, the combination with a valve body having an adjustable inlet
valve, and an adjustable outlet valve, of a looped expansion rod formed with two
legs connected together by a flattened loop shaped part, one of the said legs
being fixed rigidly to the valve body, whilst the end of the other leg is capable
of sliding in a stuffing box and acts as the outlet valve seat, a comparatively
non-expanding rod attached at one end to the valve body, and a lever attached at
each end to trunnions fixed on the legs of the expansion rod near their junction
with the flattened loop part thereof and having its fulcrum at the upper end of
the comparatively non-expanding rod and nearer to the fixed leg than to the
sliding leg thereof, substantially as herein set forth.
Datad
10/1 dave of Cantambo 1800
HARRIS & MILLS,
23, Southampton Buildings, London, W.C., Applicant's Agents.