IMPROVE- MENTS IN STEAM ENGINES
Year: 1884

page_text: I ADAM CYRUS ENGERT of Three Mills Lane Bromley by Bow in the County of
Middlesex Engineer do hereby declare the nature of my invention for "IMPROVE-
MENTS IN STEAM ENGINES " to be as follows:-
For obtaining motive power I employ an engine somewhat similar to an ordinary
steam engine but in place of supplying the slide valve box with steam from an
ordinary steam boiler I supply it with steam from a small strong metallic box
placed by preference immediately below the cylinder of the engine. This box is
heated externally and for each stroke of the engine a small quantity of water is
injected into it which on entering the box is immediately converted into steam and
serves for the requisite supply of steam for one stroke of the engine. For suall
engines the box may conveniently be heated by gas burnt below it. The steam
supplied in this way to the valve box will be highly heated so that an ordinary
stuffing box cannot conveniently be employed where the slide valve rod passes out
from the valve box. In place therefore of giving motion to the slide valve by a
rod to which a to and fro reciprocating movement is given as is usual I simply
make the valve with a short rod projecting from each of its ends to work in guides
at the ends of the valve box and not to pass out from it and I give a reciprocating
to and fro movement to the valve by pins which project from its sides and pass
through slots in lever arms which extend radially from an axis to which a rocking
motion is imparted and which enters the valve box at a distance above the valve.
Where the axis enters the valve box I form a steam joint by forming the axis with
two small collars around it at a short distance apart from one another one of these
collars lies in a corresponding recess in the outer face of a small boss which projects
from the side of the valve box-the other collar lies in a similar recess in the inner
face of a screw cap through which the axis passes and which screws on to the boss.
Two half rings are made to clip the axis between the two collars and these half
rings are held between the end of the boss and the interior of the screw cap.
When an ordinary throttle valve is used on the steam supply pipe the joint through
which the spindle of this valve passes may be made steam tight in the same way.
I control the opening or closing of the throttle valve by connecting an arm upon it
to the piston rod of a small piston working in a cylinder into which air is forced
by the revolution of the shaft of the engine either from a small fan driven from
[Price 6dl

page_text: the shaft or otherwise. The air enters one end of the cylinder and pressing against
the piston tends to press it towards the opposite end of the cylinder which is open
and to close the throttle valve-the opening of the throttle valve may be effected
by a spring or weight. The piston I make with holes through it and on the top of
the piston I place a disc having corresponding holes formed through it. The disc
is attached to a hollow sleeve extending along the piston rod. By giving a partial
turn to the sleeve the holes through the disc may either be made to correspond
with the holes through the piston or may be made to more or less close these holes
and so control the escape of air from the cylinder through the piston. In this
way the speed at which the engine is allowed to run can readily be adjusted.
Dated this 9th day of Anil 1884

page_text: I ADAM CYRUS ENGERT of Three Mills Lane Bromley-by-Bow in the County of
Middlesex Engineer do hereby declare the nature of my invention for "IMPROVE-
MENTS IN STEAM ENGINES" and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement :-
For obtaining motive power I employ an engine somewhat similar to an ordinary
steam engine but in place of supplying the slide valve box with steam from an
ordinary steam boiler I supply it with steam from a small strong metallic box
placed by preference immediately below or on the side of the cylinder of the
engine. This box is beated externally and for each stroke of the engine a small
quantity of water is injected into it which on entering the box is immediately
converted into steam and serves for the requisite supply of steam for one stroke of
the engine.
At Figures 1 and 2 of the Drawings hereunto annexed I have shewn two forms
in which the box may advantageously be made, but the form may be greatly
varied-I prefer to make the box with a corrugated bottom as shewn so as to give
greater heating surface and I heat the bottom by the flame from a gas burner or
burner for burning petroleum or other oil placed below it. At eacli stroke of the
engine water is injected in a fine spray into the box through perforations in the
end of the pipe A-the spray so introduced is immediately converted into steam
which passes by the outlet B to the valve box of the engine. The box should be
surrounded with non conducting material to avoid loss of heat.
The steam supplied in this way to the valve box will be highly heated so that
an ordinary stuffing box cannot conveniently be employed where the slide valve
rod passes out from the valve box. In place therefore of giving motion to the
slide valve by a rod to which a to and fro reciprocating movement is given as is
usual, I give a reciprocating to and fro movement to the valve by a lever arm
which extends radially from an axis to which a rocking motion is imparted and
which enters the valve box at a distance above the valve as shewn in face view at
Figure 3 and in cross section at Figure 4. In these Figures A is the valve box
B the alide valve which has a to and fro motion given to it by an arm C on the
axis D to which a rocking motion is imparted.
Where the axis enters the valve box I form a steam joint by forming the axis D
with two small collars E. E. around it at a short distance apart from one another-
one of these collars lies in a corresponding recess in the outer face of a small boss
which projects from the side of the valve box-the other collar lies in a similar
recess in the inner face of a screw cap F through which the axis passes and which
screws on to the boss. Two half rings G are made to clip the axis between the
two collars and these half rings are held between the end of the boss and the
interior of the screw cap. When an ordinary throttle valve is used on the steam
supply pipe the joint through which the spindle of this valve passes may be made
steam tight in the same way as shewn at Figure 5. I control the opening or
closing of the throttle valve in the manner illustrated at Figure 6. I connect an
arm A upon its axis to the piston rod of a small piston B working in a cylinder C.
into which air is forced by the revolution of the shaft of the engine either from a
small fan driven from the shaft or otherwise-in the drawing it is shown to be
forced into it by the action of the circumference of the fly wheel The air enters
one end of the cylinder and pressing against the piston B tends to press it towards
the opposite end of the cylinder, which is open, and to close the throttle valve-the
opening of the throttle valve may be effected by a spring or by a weight D as
shown in the Drawing.

page_text: The piston I make with holes through it as shewn at Figure 7 and on the top of
the piston I place a disc having corresponding holes formed through it. The disc
is attached to a hollow sleeve E extending along the piston rod. By giving a
partial turn to the sleeve the holes through the disc may either be made to
correspond with the holes through the piston or may be made to more or less close
these holes and so control the escape of air from the cylinder through the piston.
In this way the speed at which the engine is allowed to run can readily be
adjusted.
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 construction of steam engines with a metallic box heated by a gas
burner, or burner for burning petroleum or other oil placed below or in close
proximity to the cylinder of the engine and into which water is injected at each
stroke to produce highly heated steam for working the engine substantially as
described.
2. The construction of stuffing boxes substantially as herein before described for
obtaining a steam tight joint where the axis used for giving motion to the slide
valve passes out from the valve box, and also for obtaining a tight joint around the
spindle of the throttle valve when a throttle valve is used, or around other rods or
spindles.
3. The means substantially as hereinbefore described for controlling the speed of
steam engines,

page_text: I ADAM CYRUS ENGERT of Three Mills Lane Bromley by Bow in the County of
Middlesex Engineer do hereby declare the nature of my invention for "IMPROVE-
MENTS IN STEAM ENGINES to be as follows:-
"
For obtaining motive power I employ an engine somewhat similar to an ordinary
steam engine but in place of supplying the slide valve box with steam from an
ordinary steam boiler I supply it with steam from a small strong metallic box
placed by preference immediately below the cylinder of the engine. This box is
heated externally and for each stroke of the engine a small quantity of water is
injected into it which on entering the box is immediately converted into steam and
serves for the requisite supply of steam for one stroke of the engine. For small
engines the box may conveniently be heated by gas burnt below it. The steam
supplied in this way to the valve box will be highly heated so that an ordinary
stuffing box cannot conveniently be employed where the slide valve rod passes out
from the valve box. In place therefore of giving motion to the slide valve by a
rod to which a to and fro reciprocating movement is given as is usual I simply
make the valve with a short rod projecting from each of its ends to work in guides
at the ends of the valve box and not to pass out from it and I give a reciprocating
to and fro movement to the valve by pins which project from its sides and pass
through slots in lever arms which extend radially from an axis to which a rocking
motion is imparted and which enters the valve box at a distance above the valve.
Where the axis enters the valve box I form a steam joint by forming the axis with
two small collars around it at a short distance apart from one another one of these
collars lies in a corresponding recess in the outer face of a small boss which projects
from the side of the valve box-the other collar lies in a similar recess in the inner
face of a screw cap through which the axis passes and which screws on to the boss.
Two half rings are made to clip the axis between the two collars and these half
rings are held between the end of the boss and the interior of the screw cap.
When an ordinary throttle valve is used on the steam supply pipe the joint through
which the spindle of this valve passes may be made steam tight in the same way.
I control the opening or closing of the throttle valve by connecting an arm upon it
to the piston rod of a small piston working in a cylinder into which air is forced
by the revolution of the shaft of the engine either from a small fan driven from

page_text: the shaft or otherwise. The air enters one end of the cylinder and pressing against
the piston tends to press it towards the opposite end of the cylinder which is open
and to close the throttle valve-the opening of the throttle valve may be effected
by a spring or weight. The piston I make with holes through it and on the top of
the piston I place a disc having corresponding holes formed through it. The disc
is attached to a hollow sleeve extending along the piston rod. By giving a partial
turn to the sleeve the holes through the disc may either be made to correspond
with the holes through the piston or may be made to more or less close these holes
and so control the escape of air from the cylinder through the piston. In this
way the speed at which the engine is allowed to run can readily be adjusted.
Dated this 8th day of April 1884

page_text: I ADAM CYRUS ENGERT of Three Mills Lane Bromley-by-Bow in the County of
Middlesex Engineer do hereby declare the nature of my invention for "IMPROVE-
MENTS IN STEAM ENGINES and in what manner the same is to be performed to
be particularly described and ascertained in and by the following statement :-
"
For obtaining motive power I employ an engine somewhat similar to an ordinary
steam engine but in place of supplying the slide valve box with steam from an
ordinary steam boiler I supply it with steam from a sinall strong metallic box
placed by preference immediately below or on the side of the cylinder of the
engine. This box is heated externally and for each stroke of the engine a small
quantity of water is injected into it which on entering the box is immediately
converted into steam and serves for the requisite supply of steam for one stroke of
the engine.
At Figures 1 and 2 of the Drawings hereunto annexed I have shewn two forms
in which the box may advantageously be made, but the form may be greatly
varied-I prefer to make the box with a corrugated bottom as shewn so as to give
greater heating surface and I heat the bottom by the flame from a gas burner or
burner for burning petroleum or other oil placed below it. At each stroke of the
engine water is injected in a fine spray into the box through perforations in the
end of the pipe A-the spray so introduced is immediately converted into steam
which passes by the outlet B to the valve box of the engine. The box should be
surrounded with non conducting material to avoid loss of heat.
The steam supplied in this way to the valve box will be highly heated so that
an ordinary stuffing box cannot conveniently be employed where the slide valve
rod passes out from the valve box. In place therefore of giving motion to the
slide valve by a rod to which a to and fro reciprocating movement is given as is
usual, I give a reciprocating to and fro movement to the valve by a lever arm
which extends radially from an axis to which a rocking motion is imparted and
which enters the valve box at a distance above the valve as shewn in face view at
Figure 3 and in cross section at Figure 4. In these Figures A is the valve box
B the slide valve which has a to and fro motion given to it by an arm C on the
axis D to which a rocking motion is imparted.
Where the axis enters the valve box I form a steam joint by forming the axis D
with two small collars E. E. around it at a short distance apart from one another-
one of these collars lies in a corresponding recess in the outer face of a small boss
which projects from the side of the valve box-the other collar lies in a similar
recess in the inner face of a screw cap F through which the axis passes and which
screws on to the boss. Two half rings G are made to clip the axis between the
two collars and these half rings are held between the end of the boss and the
interior of the screw cap. When an ordinary throttle valve is used on the steam
supply pipe the joint through which the spindle of this valve passes may be made
steam tight in the same way as shewn at Figure 5. I control the opening or
closing of the throttle valve in the manner illustrated at Figure 6. I connect an
arm A upon its axis to the piston rod of a small piston B working in a cylinder C
into which air is forced by the revolution of the shaft of the engine either from a
small fan driven from the shaft or otherwise-in the drawing it is shown to be
forced into it by the action of the circumference of the fly wheel The air enters
one end of the cylinder and pressing against the piston B tends to press it towards
the opposite end of the cylinder, which is open, and to close the throttle valve-the
opening of the throttle valve may be effected by a spring or by a weight D as
shown in the Drawing.

page_text: The piston I make with holes through it as shewn at Figure 7 and on the top of
the piston I place a disc having corresponding holes formed through it. The dise
is attached to a hollow sleeve E extending along the piston rod. By giving a
partial turn to the sleeve the holes through the disc may either be made to
correspond with the holes through the piston or may be made to more or less close
these holes and so control the escape of air from the cylinder through tho piston.
In this way the speed at which the engine is allowed to run can readily be
adjusted.
.
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 construction of steam engines with a metallic box heated by a gas
burner, or burner for burning petroleum or other oil placed below or in close
proximity to the cylinder of the engine and into which water is injected at each
stroke to produce highly heated steam for working the engine substantially as
described.
2. The construction of stuffing boxes substantially as hereinbefore described for
obtaining a steam tight joint where the axis used for giving motion to the slide
valve passes out from the valve box, and also for obtaining a tight joint around the
spindle of the throttle valve when a throttle valve is used, or around other rods or
spindles.
3. The means substantially as hereinbefore described for controlling the speed of
steam engines.
Dated this 8th day of Tenue