AN IMPROVED STEAM TRAP AND ANTI-PRIMING APPARATUS
Year: 1884

page_text: I LIONEL DOVE of 71 and 73 Commercial Strect Whitechapel in the County
of Middlesex, Engineer do hereby declare the nature of my Invention for AN
IMPROVED STEAM TRAP AND ANTI-PRIMING APPARATUS to be as follows:-
The object of my invention is to effect improvements in withdrawing the water
from steam pipes, and in separating the water from the Steam in consequence of
priming, and my invention is applicable to steam pipes jacketted pans, coils of pipe
and analogous purposes, and also for elevating the condensed water or other liquid
to a higher level than that of the trap.
I construct my improved apparatus of cast iron or other suitable material and of
an elliptical Section (by preference) The upper portion is so formed as to be a
continuation of the steam pipe or is otherwise connected to the pipe or other
article to be drained or trapped This upper portion has a flange for connecting
the same with the lower portion of the apparatus, to which it is bolted. The
bottom of the apparatus is a suitable plate which is bolted to the lower portion.
In the upper portion of the trap I place an air-valve opening inwards which is
kept open by a light spring and which is closed by the pressure of the steam after
the expulsion of the air.
A diaphragm is formed in the upper part of the trap, transversely to the current
of the steam, against which the steam impinges or strikes and whereby the particles
of water carried along by the passing steam are thrown down and separated from
the Steam and caused to collect in the trap.
At the lower part of the trap I fit a flap valve, which may be of any convenient
form such as circular elliptical rectangular or otherwise. On one side of this valve
I place the hinge, which acts as a fulcrum to open the same I prefer to form the
face of the valve at an angle of about 45 degrees but do not confine myself to that
or any angle. I sometimes form a groove round the valve orifice, in which I place
a ring of vulcanite or other suitable elastic material and sometimes use a metal
face only.
The valve is formed to cover the port, and has a projecting flange at or near its
edge to rest on the elastic ring or metal face.

page_text: The valve is hinged to a suitable provision, in which there is an axle or pin, and
a lever with a sector forming part of a circle in which teeth are formed, is fitted,
and is worked or actuated by a pinion to which an ordinary or other float and lever
is attached.
.
When the water accumulates in the trap it floods the ball and raises the valve
which allows the condensed liquid to escape, upon which the ball falls by its weight
and closes the valve.
The condensed water or other liquid is sometimes elevated to a higher level by
means of a pipe attached to the valve port and discharge pipe and reaching to such
higher level.
I provide a mud cock to my improved apparatus, for discharging mud or deposit
therefrom.

page_text: I LIONEL DOVE late of 71 and 73 Commercial Street Whitechapel in the County
of Middlesex Engineer, but now of the Crown Metal Works, Thomas Yard Ben
Jonson Road Stepney, in the same County, do hereby declare the nature of my
Invention for AN IMPROVED COMBINATION STEAM TRAP AND ANTI-PRIMING APPARATUS
and in what manner the same is to be performed, to be particularly. described
and ascertained in and by the following statement :—
The object of my invention is to effect improvements in withdrawing the water
from steam pipes and in separating the water from the steam in consequence of
priming and my invention is applicable to steam pipes, jacketted pans, coils of pipe,
and analogous purposes, and also for elevating the condensed water or other liquid
to a higher level than that of the trap.-I construct my improved apparatus of cast
iron or other suitable material and of an elliptical section (by preference). The
upper portion is so formed as to be a continuation of the steam pipe or is otherwise
connected to the pipe or other article to be drained or trapped. This upper portion
has a flange for connecting the same with the lower portion of the apparatus to
which it is bolted. The bottom of the apparatus is a suitable plate which is bolted
to the lower portion.
In the upper portion of the trap I place an air valve opening inwards which is
kept open by a light spring and which is closed by the pressure of the steam after
the expulsion of the air.
A diaphragm is formed in the upper part of the trap transversely to the current
of the steam, against which the steam impinges or strikes and whereby the particles
of water carried along by the passing steam are thrown down separated from the
steam and caused to collect in the trap.
At the lower part of the trap I fit a flap valve which may be of any convenient
form such as circular elliptical rectangular or otherwise. On one side of this valve
I place the hinge which acts as a fulcrum to open the same. I prefer to form the
face of the valve at an angle of about 45 degrees, but do not confine myself to that
or any angle:-I sometimes form a groove round the valve orifice, in which I place
a ring of vulcanite or other suitable elastic material and sometimes use a metal
face only.
The valve is formed to cover the port and has a projecting flange at or near its
edge to rest on the elastic ring or metal face.
The valve is hinged to a suitable provision in which there is an axle or pin and
a lever with a sector forming part of a circle in which teeth are formed is fitted
and is worked or actuated by a pinion to which an ordinary ball or other float and
lever is attached.
When the water accumulates in the trap it floats the ball and raises the valve
which allows the condensed liquid to escape, upon which the ball falls by its weight
and closes the valve..
The condensed water, or other liquid, is sometimes elevated to a higher level by
means of a pipe attached to the valve port and discharge pipe and reaching to such
higher level.
I provide a mud cock to my improved apparatus, for discharging mud or deposit
therefrom.
And in order that my said Invention may be clearly understood, reference is
hereby made to the accompanying drawings.
Fig. is a sectional view of the steam trap, and Fig. 2 is a modification of the
same; similar letters of reference indicating similar parts in both figures.-a is the
upper portion of the trap, to which the steam pipes are fixed as shewn. The

page_text: lower portion of the trap c is united to the upper portion by bolts and nuts passing
through the flanges.-d is the diaphragm which causes the particles of water to be
thrown downwards and to be thereby divided from the flowing steam-e is the air
valve to allow of the escape of air.-f is my improved valve which is raised by the
sector g and pinion h, the latter being actuated by the ball i.-k. is the mud cock
for discharging mud or deposit.
By continuing the outlet pipe m to a higher level, the condensed and collected
water may be raised to such level ready for use as feed water or otherwise.
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. The method means and appliances for separating water from the flowing
steam in connection with steam pipes and other analogous purposes, substantially
as herein before described and shewn on the drawings.
2. The manufacture and use of steam traps constructed arranged and operating
substantially as hereinbeforo described and shewn on the drawings.