A NEW OR IMPROVED COMBINED SAFETY GOVERNOR AND ALARM SIGHT FEED LUBRICATOR FOR STEAM AND COM- PRESSED AIR ENGINES to be as follows
Year: 1885

page_text: Engines.
We BENJAMIN LAW of No 31 Franklin Street Birmingham in the County of
Warwick Mechanical Engineer and CHARLES WILLIAM PINKNEY of N° 5 Regent
Street Smethwick in the County of Stafford Mechanical Engineer do hereby
declare the nature of the said Invention for "A NEW OR IMPROVED COMBINED
SAFETY GOVERNOR AND ALARM SIGHT FEED LUBRICATOR FOR STEAM AND COM-
PRESSED AIR ENGINES to be as follows:-
"
Our invention consists of the new or improved combined safety governor and
alarm sight feed lubricator constructed as hereinafter described. Our invention is
especially applicable to steam engines and we will describe it in connection with a
steam engine but our invention is also applicable to compressed air engines.
Our invention consists of a safety governor by which the steam is cut off both
when the balls are at their lowest as well as when they are at their highest
position. This governor is combined with and actuates in the way hereinafter
explained a lubricator of the kind called a sight lubricator that is a lubricator the
oil containing vessel of which is made of glass. This lubricator has appliances of
the kind hereinafter described by the action of which when the lubricant is
exhausted a whistle is sounded. By the cutting off of the steam when the balls
are in the lowest position the engine is brought to rest if the driving band breaks
or runs off the pulley and by the alarm lubricator attention is called to the absence
of lubricant and in this way two sources of serious accident are removed.
The safety governor is constructed as follows:-To the throttle equilibrium
valve two additional heads are made there being corresponding cylindrical or
tubular seats for them to engage in. The stem of the valve is.supported as usual
by a coiled spring which raises it when it is at liberty to move. The tension of
this spring is regulated in the manner hereinafter explained. When the balls fall
to their lowest position the valve stem is raised by the spring when the additional
heads of the valve entering their seats steam is cut off and the engine comes to
rest. Steam is cut off in the usual way when the balls are in their highest
position. In order to prevent the balls from falling to their lowest position
excepting in case of accident to the governor band the following arrangement is
adopted. On the top of the fixed frame of the governor is a vertically sliding tube
having a broad flange at its top. When this tube is in its lowest position its
flange offers no obstruction to the descent of the balls and they can fall to their
lowest position. When the said tube is raised its flange props the balls at their
middle position when they are at liberty to rise but not to fall. The said tube is
supported in its raised or normal position by a spring crutch. This crutch consists
of a sliding rod parallel to the shaft carrying the driving pulley of the governor.

page_text: The acting end of the said rod is turned up into a vertical position and is pressed
against the flanged tube as hereinafter explained and when the flanged tube is
raised to its normal position the vertical end of the crutch is situated under it and
supports it in that position The withdrawal of the spring crutch when the
governor band breaks or runs off its pulley and the consequent descent of the
flanged tube. The falling of the balls to their lowest position and the shutting off
of steam is thus effected. The inner flange of the governor pulley is not fixed but
slides on a sleeve attached to the governor body so that the pulley is made
virtually broader or narrower according to the position of the loose inner flange.
The band driving the governor pulley is so broad that the loose flange has to be
separated a short distance from the body of the pulley in order that the pulley
may receive the said band and it is by the loose flange of the pulley that the
spring crutch is operated. The end of the horizontal branch of the spring crutch
bears against the outer face of the loose flange of the pulley so that when the said
loose flange is kept at a short distance from the body of the pulley by the breadth
of the driving band the vertical arm of the crutch is in the position in which it
supports the sliding flanged tube and the balls cannot descend below their normal
position. When however the driving band breaks or runs off the pulley the crutch
which is now at liberty to move is drawn by its spring outwards from the governor
when its vertical arm no longer supporting the flanged tube the latter falls and the
balls descend and shut off steam. Before the governor can again be put into
operation the sliding flange of the pulley must be separated from the body in
order that the pulley may receive the driving band and by the sliding flange
taking this position the crutch is brought into the position in which it supports the
flanged tube.
The lubricator and appliances connected therewith are constructed as follows:-
The glass reservoir of the lubricator has at bottom a rotating plug to which a slow
intermittent motion is given by a pawl and ratchet the pawl being operated by a
small eccentric on the end of the pulley shaft the said eccentric and the pawl lever
boing connected by a connecting rod. The rotating plug has one two or more
depressions or small cups made in it which cups fill with oil when they are in their
highest position and empty themselves of the said oil when in their lowest position
the oil falling from them into the steam pipe. Any water condensed in the cups
from the steam is emptied from them by their passing an opening in the case in
which the plug works before they reach their highest position. Any water in the
cups runs from them through this opening and they become filled with air which
when the cups reach their highest point bubbles up through the oil and shows the
lubricator to be working properly.
The glass reservoir of the lubricator has a float the stem of which is connected
with a lever operating a valve. When the float descends so far as to indicate that
the lubricant is nearly exhausted the lever opens the valve and admits steam to an
alarm whistle and thereby calls attention to the necessity of replenishing the
lubricator reservoir,
The tension of the coiled spring which supports the stem of the throttle
equilibrium valve is regulated as follows:-The said spring is carried by an eye
bolt passing through a screwed cap and fixed by lock nuts. By raising or lowering.
the screwed cap by turning it the tension of the coiled spring can be adjusted with
great nicety and this can be effected without stopping the engine. The turning
of the screw bolt is prevented by a cross bar carried by it taking into slots in
the case.
W. T. WHITEMAN,
Agent for the Applicants.

page_text: Engines.
We BENJAMIN LAW of No 31 Franklin Strect Birmingham in the County of
Warwick Mechanical Engineer and CHARLES WILLIAM PINKNEY of N° 5 Regent
Street, Smethwick in the County of Stafford, Mechanical Engineer do hereby
declare the nature of the said Invention and in what manner the same is to be
performed to be particularly described and ascertained in and by the following
statement:
.Our invention consists of the new or improved combined safety governor and
alarm sight feed lubricator constructed as hereinafter described. Our invention is
especially applicable to steam engines and we will describe it in connection with a
steam engine but our invention is also applicable to compressed air engines.
Our invention consists of a safety governor by which the steam is cut off both
when the balls are at their lowest as well as when they are at their highest
position. This governor is combined with and actuates in the way hereinafter
explained a lubricator of the kind called a sight lubricator, that is, a lubricator the
oil containing vessel of which is made of glass.
This lubricator has appliances of the kind hereinafter described by the action of
which when the lubricant is exhausted a whistle is sounded. By the cutting off
of the steam when the balls are in the lowest position, the engine is brought to
rest if the driving band breaks or runs off the pulley and by the alarm lubricator
attention is called to the absence of lubricant and in this way two sources of
serious accident are removed.
The safety governor is constructed as follows:-To the throttle equilibrium
valve two additional heads are made, there being corresponding cylindrical or
tubular seats for them to engage in. The stem of the valve is supported as usual
"The tension of
by a coiled spring which raises it when it is at liberty to move.
this spring is regulated in the manner hereinafter explained. When the balls fall
to their lowest.position the valve stem is raised by the spring when the additional
beads of the valve entering their seats, steam is cut off and the engine comes to
rest. Steam is cut off in the usual way when the balls are in their highest
position. In order to prevent the balls from falling to their lowest position
excepting in case of accident to the governor band the following arrangement is
adopted. On the top of the fixed frame of the governor is a vertically sliding tube
having a broad flange at its top. When this tube is in its lowest position its
flange offers no obstruction to the descent of the balls and they can fall to their
lowest position. When the said tube is raised its flange props the balls at their
middle position when they are at liberty to rise but not to fall. The said tube is
supported in its raised or normal position by a spring crutch. This crutch consists
of a sliding rod parallel to the shaft carrying the driving pulley of the governor.
The acting end of the said rod is turned up into a vertical position and is pressed
against the flanged tube as hereinafter explained and when the flanged tube is

page_text: raised to its normal position the vertical end of the crutch is situated under it and
supports it in that position. The withdrawal of the spring crutch when the
governor band breaks or runs off its pulley and the consequent descent of the
Hanged tube the falling of the balls to their lowest position and the shutting off
of steam is thus effected. The inner flange of the governor pulley is not fixed but
slides on a sleeve attached to the governor body so that the pulley is made
virtually broader or narrower according to the position of the loose inner flange.
The band driving the governor pulley is so broad that the loose flange has to be
separated a short distance from the body of the pulley in order that the pulley may
receive the said band and it is by the loose flange of the pulley that the spring
crutch is operated. The end of the horizontal branch of the spring crutch bears
against the outer face of the loose flange of the pulley so that when the said loose
flange is kept at a short distance from the body of the pulley by the breadth of
the driving band the vertical arm of the crutch is in the position in which it
supports the sliding flanged tube and the balls cannot descend below their normal
position When however the driving band breaks or runs off the pulley the crutch
which is now at liberty to move is drawn by its spring outwards from the
governor when its vertical arm no longer supporting the flanged tube the latter
falls and the balls descend and shut off steam. Before the governor can again be
put into operation the sliding flange of the pulley must be separated from the body
in order that the pulley may receive the driving band and by the sliding flange
taking this position the crutch is brought into the position in which it supports
the flanged tube.
The lubricator and appliances connected therewith are constructed as follows:-
The glass reservoir of the lubricator has at bottom a rotating plug to which a
slow intermittent motion is given by a pawl and ratchet, the pawl being operated
by a small eccentric on the end of the pulley shaft the said eccentric and the pawl
lever being connected by a connecting rod. The rotating plug has one two or
more depressions or small cups made in it which cups fill with oil when they are
in their highest position and empty themselves of the said oil when in their lowest
position, the oil falling from them into the steam pipe. Any water condensed in
the cups from the steam is emptied from them by their passing an opening in the
case in which the plug works before they reach their highest position. Any water
in the cups runs from them through this opening and they become filled with air
which when the cups reach their highest point bubbles up through the oil and
shows the lubricator to be working properly.
The glass reservoir of the lubricator has a float the stem of which is connected
with a rod or lever operating a valve. When the float descends so far as to
indicate that the lubricant is nearly exhausted, the lever opens the valve and
admits steam to an alarm whistle and thereby calls attention to the necessity of
replenishing the lubricator reservoir.
We will now proceed to describe with reference to the accompanying Drawing
the manner in which our invention is to be performed.
Figures 1 and 2 represent vertical sections, taken at right angles to one another,
of a safety governor and alarm sight feed lubricator for a steam engine (or
compressed air engine) constructed according to our invention and Figure 3 is a
plan of the same; Figure 4 represents a portion of Figure 3 showing the governor
balls supported in their middle position by the vertically sliding flanged tube. In
Figures 1 and 2 the balls of the governor are represented in their lowest position
and the throttle equilibrium valve consequently in its highest position and the
steam to the cylinder cut off.
The same letters of reference indicate the same parts in the several Figures of
the Drawing.
a is the steam pipe, in connection with the boiler, the said pipe containing the
usual steam stop valve b; c is the passage to the steam cylinder in connection
with the steam pipe a; d is the throttle equilibrium valve of the safety governor
by which valve the steam is cut off from or allowed to pass to the passage c; d³ is

page_text: the sliding stem of the valve d supported by the coiled spring e which raises it
and the valve into their highest positions when they are at liberty to move;
ff are the governor balls turning on the centres f", fi the short arms of the said
governor balls bearing upon the enlarged top of the said valve stem d. The said
valve d works in the casing of the governor and is furnished with three "heads"
or rings d², d', d; g, h are cylindrical or tubular seats against which the heads or
rings d³, d, d³ seat themselves. When the governor balls f. f fall to their lowest
position as represented in Figures 1 and 2 the valve stem and valve d, d² are
raised by the spring e and the heads d', do of the valve bearing against the annular
seats g, h steam is cut off and the engine comes to rest. When the governor
balls f,fare in their highest position as indicated in dotted lines in Figure 1 the
valve takes its lowest position and the heads d³, d of the said valve now seat
themselves against the seats g, h and the steam is cut off.
When the governor balls f. f are in their middle position as represented in
Figure 4 and indicated in dotted lines on Figure 1 none of the heads d³, d, d³ bear
upon the seats g, h and the steam is permitted to pass from the supply pipe a to
the passage o in connection with the steam cylinder.
The tension of the coiled spring e which supports the throttle equilibrium valve d
is regulated as follows:-The said spring is carried by the eye bolt e³ passing
through the screwed cap e³ the said eye bolt being fixed by the lock nuts at e.
On the outside of the case e" is a screw e with which the cap e engages. By
raising or lowering the screwed cape by turning it the tension of the coiled
spring e can be adjusted with great nicety and this can be effected without stopping
the engine.
The turning of the screw bolt e³ is prevented by the cross bar e' carried by it
taking into slots e³ in the case e³ (see Figures 1 and 2).
We will now describe the arrangement of parts for preventing the governor balls
from falling to their lowest position excepting in case of accident to the governor
band. On the top of the fixed frame of the governor is a vertically sliding tube i
having a broad flange at top. When the tube i is in its lowest position as
ropresented in the Drawing, its flange offers no obstruction to the descent of the
governor balls f. f. When the tube i is raised its flange props the governor balls
ff at their middle position as represented in Figure 4 when they can rise but the
descent of the balls is prevented by the flange of the said tube i.
The tube i is supported in the last described or raised position by the spring
sliding crutch k, k². The part k of the sliding crutch is parallel to the shaft
carrying the driving pulley m of the governor and the other part or acting end k²
of the crutch is vertical. The end of the horizontal part k of the sliding crutch
bears against the inner sliding flange m² of the governor pulley m the said flange
working on a sleeve around the shaft Z and the end of the vertical part 2 of the
crutch when the flanged tube i is in its raised or normal position is situated under
the bottom end of the flanged tube and supports it in that position as represented
in Figure 4. It is by the sliding flange m³ of the governor pulley that the crutch
k, k³ is operated as hereinafter explained. The sliding crutch is pressed towards
the pulley m by the coiled spring m³ one end of which takes an abutment against
the collar on the crutch and the other end against a fixed snug on the governor
case. The loose or sliding flange m² of the pulley m is for the purpose of increasing
or diminishing the virtual width of the said pulley. The band driving the
governor pulley m is so broad that the loose flange m has to be separated a short
distance from the body of the pulley for placing the band upon the pulley. When
the driving band is in its place on the pulley, the loose flange m³ is situated nearer
to the case of the governor than it is represented in the Drawing and as the
spring m³ is compressed the end of the horizontal arm k of the crutch tends to force
the loose flange m² against the driving band. When the loose flange m² is in the
last described position the vertical arm of the crutch is situated under the bottom
end of the raised flanged tube i and supports the said tube and the governor balls
cannot descend as herein before described. Should the driving band running on

page_text: the pulley m break or slip off the pulley the crutch k, k³ which is now at liberty to
move is drawn by the spring m³ outwards or towards the pulley m. The vertical
arm of the crutch is thereby withdrawn from under the bottom of the flanged
tube i and the latter being no longer supported falls. Thus, should the governor
band break or run off its pulley the flanged tube i descends and the governor balls
f. f fall to their lowest position and steam is shut off by the action of the throttle
equilibrium valve d as before described. The governor is again put into operation
by raising the sliding tube i and separating the sliding flange m³ of the pulley m.
The driving band having been placed on the pulley the said sliding flange m³ has
such a position that the vertical part of the crutch supports the flanged tube in
its raised position.
We will now describe the alarm sight feed lubricator and appliances connected
with it.
n is the glass reservoir of the lubricator having at bottom a rotating plug p to
which a slow intermittent rotary motion is given in the manner herein after described.
In the rotating plug p are two depressions or small cups q, q at opposite points
which cups fill with oil from the reservoir n when they are in their highest position
and empty themselves of the oil when in their lowest position, the oil falling from
them into the passage n² from whence it passes to the steam pipe a.
In the case
in which the rotatory plug n works is an opening n³ and at the base of the glass
'reservoir n is a tray n. Any water condensed in the cups q, q from the steam
passing into them from the steam pipe a is emptied from them by their passing the
said opening n³ in the case before they reach their highest position, the con-
densed water running into the tray n' as will be understood by an examination of
Figure 1.
The emptied cups q, q become filled with air and when they reach their highest
point the said air bubbles up through the oil and shows the lubricator to bo working
properly.
The slow intermittent motion is given to the rotating plug p in the following
manner.
The end r of the shaft & driving the governor pulley m is made eccentric and on
the said eccentric end of the shaft the connecting rod is jointed, the other
end of the said rod 7 being jointed to a pawl lever working freely on the end
of the shaft p' on which the plug p is fixed; is the pawl on the pawl lever p³
the said pawl engaging with the teeth of the ratchet wheel fixed on the shaft p²
of the rotating plug p. By the rotation of the governor pulley shaft / a slow
intermittent motion is given through the arm r, rod r³, pawl lever and pawl 73, 74
and ratchet wheel to the shaft p² of the rotating plug p as will be understood
by an examination of Figures 2 and 3. The indicator for indicating when the
reservoir requires replenishing with oil consists of a float a rising and falling in the
said reservoir. The stem s³ of the float is connected by the rod or levert to the top
of the stalk of the sliding valve u in connection with the alarm whistle (see
Figure 2) the passage to the said alarm whistle being in communication with the
steam pipe c.
When the float a descends so far as to indicate that the oil is nearly
exhausted in the reservoir n, the rod or levert opens the valve u by a descending
motion and puts the alarm whistle x in communication with the steam in the pipe c
which whistle sounds an alarm and thereby calls attention to the necessity of
replenishing the lubricator reservoir.
Having now particularly described and ascertained the nature of our inven-
tion and the manner in which the same is to be performed we declare that we
claim :-
In a combined safety governor and alarm sight feed lubricator for steam and
compressed air engines
"
First. Providing the throttle equilibrium valve of the safety governor with the
"heads
or rings and seats described and represented for cutting off the steam or
air both when the governor balls are at their lowest position as well as when they

page_text: are at their highest position substantially as herein before described and illustrated
in the accompanying Drawing.
Secondly. The combination of parts herein before described and illustrated in
the accompanying Drawing for regulating the tension of the coiled spring which
supports the stem of the throttle equilibrium valve of the safety governor.
Thirdly Preventing the governor balls from falling to their lowest position
excepting in case of accident to the governor band by means of the vertically
sliding flanged tube i, i hereinbefore described and illustrated in the accompanying
Drawing.
Fourthly. The combination with the vertically sliding flanged tube i, i³ of the
spring sliding crutch k, k² and loose or sliding flange m² of the governor pulley for
the purpose and substantially as herein before described and illustrated in the
accompanying Drawing.
Fifthly. The construction and combination of the parts of and the mechanism
for working the alarm sight feed lubricator herein before described and illustrated
in the accompanying Drawing.
Lastly. The construction and combination of the parts herein before described
and illustrated. in the accompanying Drawing for indicating when the reservoir of
the sight feed lubricator requires replenishing with oil.