Year: 1886

page_text: Date of Application, 14th Oct., 1886.
Complete Left, 18th June, 1887.
Complete Accepted, 19th July, 1887.
[Communicated from abroad by GEORGE DOLOR DAVIS, of 194, Washington Street,
Boston, in the State of Massachusetts, one of the United States of America,
Engineer.]
I, JOHN FERGUSON HASKINS of No. 114* Queen Victoria Street in the City of
London, Consulting and Mechanical Engineer do hereby declare the nature of this
invention to be as follows:-
This invention has for its object the production of a governor for direct-acting or
reciprocating steam-pumps, whereby any increase in the established speed of the pump
will, through an air-compressing mechanism to be described, effect automatically the
movement of the main or throttle valve, admitting steam into the pump, and decrease
the supply of steam to the pump until the quantity of water or other liquid entering
it accords with the quantity which it is desired that the pumps shall discharge, or
vice versa.
The simplicity of this governor, combined with its perfect governing qualities, is
one of the advantages gained.
The improved governor does not run in oil, nor has it oil, glycerine, or any other
liquid connected with it, to be affected by change of temperature, or that has to be
frequently renewed by reason of its becoming fouled by dirt or other causes.
This is
an advantage that all engineers will appreciate who have used Governors that work
by means of liquids transferred through numerous complicated ports and valves.
This Governor is adapted for governing steam engines and steam pumps and is
specially adapted to direct acting steam pumps, mining pumps, Brewers' beer pumps,
circulating pumps for ice machines, air compressors, vacuum pumps (direct acting or
fly wheel), water works pumps etcetera, also for sugar house pumps of all kinds or
pumps of any description where it is desired to maintain a regular, uniform speed,
without regard to the variation of steam pressure at the boiler, or of the load on
the pump.

page_text: The improved Governor consists of a small air pump, attached to some reciprocating
part of a pump or engine by an adjustable rod, the air pumped from the said pump
cylinder passes through the small pipe into a chamber from whence it escapes
through a suitable passage, the amount of air escaping being regulated by an
adjustable nut, if the pump or engine governed is inclined to speed up, more air is
pumped into the pump chamber than can escape through the escape opening which
forces down the piston, connected by the adjustable rod with the steam valve, thus
closing the valve and shutting off the steam. If the pump or engine governed is
inclined to slow down, the air escapes through the passage faster than it is supplied
by the air pump, and will allow the spring to the adjustable rod to raise the piston
and open the steam valve. A small dash-pot, designed to steady the motion of the
valve may be employed.
This governor is positive in its action, and is adapted for pumps and engines that
have run at a high speed say of from two strokes to four hundred per minute.
This improved governor is charactised by the steam pump, the air pump secured to
said steam pump, and connections as described, to move the piston of the air pump in
unison with the piston of the steam pump being combined with the chamber the
pipe connecting said chamber with the air pump, the piston forming one of the walls
of the chamber, the valve rod, and dash pot integral with the said piston, and the
throttle valve of the steam pump, also by the steam pump, the air pump being secured
to said steam pump and connections to move the piston of the air pump in unison
with the piston of the steam pump, combined with the chamber, the pipe connecting
said chamber with the air pump, the piston forming one of the walls of the chamber,
the throttle valve rod, provided with threads for a portion of its length, and dash pot
integral with the said piston, and the throttle valve of the steam pump, and the
spring and nut to engage the threaded portion of the valve rod and by which to
adjust the normal position of the throttle valve when open; also by the throttle
valve case, valve, the cap, the standards supported by said cap, the plate having the
walls, and the guide, the piston having a dash pot secured to it, and the rod attached
to the piston and having the spring and an adjusting nut, combined with an air
pump and connections therefrom with the steam pump to operate it in unison with the
steam pump; also by the steam pump, an air pump attached to and operated by the
same, the plate having the walls and the guide, combined with the piston to form
the chamber, the pipe connecting said chamber with the air pump, the throttle valve
rod secured to the piston and provided with a spring and adjusting nut.
Dated this 14th day of October 1886

page_text: 1 JOHN FERGUSON HASKINS of 114* Queen Victoria Street in the City of London,
Consulting and Mechanical Engineer (communicated to me from abroad by George
Dolor Davis of 194 Washington Street Boston in the State of Massachusetts one of
the United States of America 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 :-
This invention has for its object the production of a governor for direct-acting or
reciprocating steam-pumps, whereby any increase in the established speed of the
pump will, through an air compressing mechanism to be described, effect automatically
the movement of the main or throttle valve provided for the purpose of admitting
steam into the pump, and by such movement decrease the supply of steam to the
pump until the quantity of water or other liquid entering it accords with the quantity
which it is desired that the pumps shall discharge, or vice versa.
The simplicity of this governor, combined with its perfect governing qualities, is
one of the advantages gained.
The improved governor does not run in oil, nor has it oil, glycerine, or any other
liquid connected with it, to be affected by change of temperature, or that has to be
This is
frequently renewed by reason of its becoming fouled by dirt or other causes.
an advantage that all Engineers will appreciate who have used governors that work
by means of liquids transferred through numerous complicated ports and valves.
This Governor is adapted for governing steam engines and steam pumps and is
specially adapted to direct acting steam pumps, mining pumps, Brewers' beer pumps,
circulating pumps for ice machines, air compressors, vacuum pumps (direct acting or
fly-wheel), water works pumps etcetera, also for sugar house pumps of all kinds or
pumps of any description where it is desired to maintain a regular, uniform speed,
without regard to the variation of steam pressure at the boiler, or of the load on
the pump.
The improved Governor consists of a small air pump, attached to some reciprocating
part of a pump or engine by an adjustable rod, the air pumped from the said pump
cylinder passes through the small pipe into a chamber from whence it escapes through
a suitable passage, the amount of air escaping being regulated by an adjustable nut, if
the pump or engine governed is inclined to speed up, more air is pumped into the
pump chamber than can escape through the escape opening which forces down the
piston, connected by the adjustable rod with the steam valve, thus closing the valve
and shutting off the steam.. If the pump or engine governed is inclined to slow
down, the air escapes through the passage faster than it is supplied by the air pump,
and will allow the spring to the adjustable rod to raise the piston and open the

page_text: DESCRIPTION OF THE DRAWINGS.
A indicates the steam pump whose speed is to be governed, A³ is its steam chest
A³ its piston rod, A³ the connecting rod, A the arm centred to the rocker shaft A
which works the lever 63. At the end of the steam chest is mounted a bracket a of
sufficient strength to support the cylinder of an ordinary air pump it having a piston
not shown but of ordinary construction attached to the inner end of a piston rod b¹
which is herein shown as joined by a link 62, to a lever or arm 63 attached to the rock
shaft A the latter being common to certain known descriptions of pumps and not
requiring special description.
The cylinder of the air pump has usual valves at each end to open inwardly
alternately following the direction of the piston in the said cylinder so as to supply
the cylinder with air to be forced out at the next stroke of the piston. The air drawn
into the air pump from the atmosphere is discharged therefrom through a pipe d³ into
the chamber D composed as herein shown, of a fixed part d', d², d³, d, and a moveable
part or piston e² the compressed air entering the chamber acting upon but one side of
the said piston as will be readily understood.
The base plate d' is shewn as being supported by the standards d erected upon the
cap b' of the throttle valve case B the latter being connected in the usual way with
the steam chest of the pump and receiving steam in the usual way and discharging it
into the steam chest.
The valve case B is shewn as provided with a detachable annular seat B¹ having
ports, the throttle valve having suitable ports to co-operate with those of the said
seat, and according to the position of the valve vertically admit more or less steam
into the steam chest. The throttle valve moving rod b above the said valve is extended
through a stuffing box g and above the said stuffing box is a spiral spring f which
abuts against the underside of the base plate d¹ and the adjustable screw nut f² screwed
on the said rod said spring acting with a tendency to press down the rod and there-
after the said rod is extended through the guide do and through the piston e², the
screwed cap h being screwed on its end adjustably. The spring f³ as herein shewn
normally acts upon the rod b to keep the piston e against the plate d¹ or at the inlet
side of the chamber D and also keeps the valve open, the extent to which the valve is
normally held open depending on the amount of steam required to run the pump at
the speed desired. The normal position for the valve to furnish an amount of steam
to secure for the pump an established speed will be regulated by adjusting the cap
on the end of the rod b.
h
Referring to Figure 2 the valve is shewn as fully open to permit the passage of
steam through it into the steam chest. Steam being admitted to the valve case and
into the steam chest will start the main piston and its rod A² and the latter, by the
connection described will reciprocate the piston rod and piston of the air pump, stroke
for stroke, in unison.
The porti in the rod 6 for escape of air from the chamber D is closed more or less
by the screw cap being more or less screwed down the rod b and onto or off the
said port permitting the discharge into the atmosphere through the said ports of all
the air forced into the chamber by the air pump so long as the steam pump is
running at the desired or established speed. In practice this cap will be set so as to
partially cover the said port i and permit the discharge of but a part of the air forced
into the chamber D, and as a consequence the air when forced into the said chamber
in quantity greater than can escape through the ports i will commence to act upon and
move the piston e until the throttle valve is brought to such a position as will insure

page_text: the passage through it of just the quantity of live steam necessary to run the pump
at the speed desired; but if the speed of the pump is increased beyond the desired,
or what is intended to be the established speed, the air pump working in unison with
the main portion A2 forces an extra amount of air into the chamber D and acting on
the piston e moves it and the rod to partially, or it may be temporarily wholly,
close the ports of the throttle valve and as the speed of the pump is decreased and
the quantity of compressed air delivered into the chamber D is correspondingly
decreased the spring f³, the strength of which is in excess of the normal pressure of
the air on the piston e², assumes control of the rod b and moves it to open the throttle
valve ports to the extent desired for the regular and established speed of the pump.
The piston e² acting in the chamber D as a dash-pot prevents too sudden movements
of the rod and throttle valve to cut off the live steam, and by the screw on the
rod over the port the movement of the throttle valve due to the spring f³ is
regulated so as not to be too sudden.
e2
In lieu of the throttle valve shown, any suitable valve of other common or well
understood construction may be used.
in
The improved governor is characterised by the steam pump, the air pump secured
to the said steam pump and connections as described to move the piston of the air
pump in unison with the piston of the steam pump being combined with the chamber D
the pipe connecting said chamber with the air pump, the piston e forming one of
the walls of the chamber D, the valve rod, and dash-pot integral with the said piston,
and the throttle valve of the steam pump so as to constitute a novel and efficient
means of governing the speed of pumps. And by the steam pump, the air pump
secured to said steam pump and connections to move the piston of the air pump.
unison with the piston of the steam pump being combined with the chamber, the pipe
connecting said chamber with the air pump, the piston forming one of the walls of
the chamber, the throttle valve rod, provided with threads for a portion of its length,
and dash pot integral with the said piston, and the throttle valve of the steam pump,
and the spring and nut to engage the threaded portion of the valve rod and by which
to adjust the normal position of the throttle valve when open; also by the throttle
valve case, valve, the cap, the standards supported by said cap, the plate having the
walls, and the guide, the piston having a dash pot secured to it, and the rod attached
to the piston and having the spring and an adjusting nut, combined with an air pump
and connections therefrom with the steam pump to operate it in unison with the steam
pump; also by the steam pump, an air pump attached to and operated by the same,
the plate having the walls and the guide, combined with the piston to form the
chamber, the pipe connecting said chamber with the air pump, the throttle valve rod
secured to the piston and provided with a spring and adjusting nut.
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 steam pump, the air pump, secured to said steam pump, and connections
substantially as described to move the piston of the air pump in unison with the piston
of the steam pump, combined with the chamber D, the pipe d³ connecting said chamber
with the air pump, the piston e forming one of the walls of the chamber D, the valve
rod, and dash pot integral with the said piston, and the throttle valve of the steam
pump substantially as shown and described.
2. The steam pump, the air pump secured to said steam pump, and connections
substantially as described to move the piston of the air pump in unison with the piston
of the steam pump, combined with the chamber D, the pipe d' connecting said
chamber with the air pump, the piston e forming one of the walls of the chamber D,
the throttle valve rod, provided with threads for a portion of its length, and dash pot
integral with the said piston, and the throttle valve of the steam pump, and the
spring and nut f2 to engage the threaded portion of the valve rod and by which
to adjust the normal position of the throttle valve when open substantially as set
forth.

page_text: d¹
3. The throttle valve case B, valve 6, the cap 6, the standards d supported by said
cap, the plate having the walls d2 d³, and the guide d', the piston having a dash
pot secured to it, and the rod b attached to the piston e² and having the spring f³ and
nut, combined with an air pump and connections therefrom with the steam pump
to operate it in unison with the steam pump substantially as described.
4. The steam pump, an air pump attached to and operated by the same, the plate d'
having the walls d² d³ and the guide d' combined with the piston 2 to form the
chamber D, the pipe d³ connecting said chamber with the air pump, the throttle valve
rod secured to the piston e² and provided with the spring f³ and nut f², substantially
as described and for the purpose set forth.