Year: 1894

page_text: A communication from abroad by the EISENWERKE GAGGENAU ACTIEN
Gesellschaft, of Gaggenau, Baden, Germany, Engineers..
We, HOLDEN & BROOKE, LIMITED, of St. Simon's Works, Salford, in the
County of Lancaster, Engineers do hereby declare the nature of this invention to
be as follows:
:-
In an engine governor according to this invention, the passage of motive fluid
through a pipe to an engine is controlled by a valve arranged in a casing adapted
to form part of the said pipe and operated by a lever arm from a collar on a sleeve
mounted to slide end ways on the governor spindle which is mounted in a bearing
carried by the valve case and is driven by a band pulley or in any other convenient
manner. The valve which is of oscillating type, and preferably of elongated
conical shape is made with a conical end piece or plug carrying a number of
separate radiating bars or arms that are unconnected at one end and are adapted to
control openings that may conveniently be in the form of rows of small holes
formed in a correspondingly shaped chamber forming a seat for the said valve and
which may conveniently be made separate from and secured in the valve case, the
arrangement being such that when the governor is in action, the bars or arms of
the valve will, by the pressure of the fluid thereon, be pressed sideways against
the chamber so as to make a fluid tight joint therewith, and the smaller end of the
valve will be forced against a seating formed at the corresponding end of the
chamber so as to make a fluid tight joint therewith at this part and so enable a
stuffing box to be dispensed with at the place where the valve spindle passes through
the valve case to the lever arm outside. A spring is or may be placed around the
valve spindle between the case and the lever arm on the said spindle to assist
in keeping the valve in place, endways against said seating.
A
The aforesaid sleeve to which the governor arms with weights are. pivoted, is
connected by a pin working in slots in the driving spindle to the inner end of
a coiled spring that acts in tension and is arranged within the said spindle, the
outer end of the said spring being connected to a cup or plug that is or may be so
formed and arranged relatively to the end of the spindle that it can be readily
disengaged and used as a speeder by varying the tension of the spring and therefore
the action of the governor, and afterwards can be re-engaged with the end of the
spindle to which it will be held by the action of the spring.
The tendency of the balls and arms when revolved by the spindle, is to fly
outwards, elongate the coiled spring and close the openings controlled by the
aforesaid bars or arms, while the tendency of the spring is to resist the outward
movement of the balls and arms. The action of the speeder, by varying the
amount of tension in the spring, is therefore to control the outward movement. of the
balls and consequently the extent to which the steam openings will be, uncovered
for any particular speed of revolution.

page_text: Endways movement of the aforesaid sleeve may be limited in one direction by a
collar on the driving spindle, and in the opposite direction by an adjustable device,
such as a screw, carried by the spindle bearing.
Dated this 17th day of December 1894.
A communication. from abroad by the EISENWERKE GAGGENAU ACTIEN 1
GESELLSCHAFT, of Gaggenau, Baden, Germany, Engineers.
We, HOLDEN & BROOKE, LIMITED, of St. Simon's Works, Salford, in the
County of Lancaster, Engineers, 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 reference to an improved construction of engine governors of
which an example is illustrated in the accompanying drawings, whereof
Fig. 1 shows the governor in longitudinal vertical section on the line I of
Fig. 2,
Fig. 2 a cross section on the line II of Fig. 1, and
Fig. 3 a horizontal section on the line III of Fig. 1, the valve being removed.
1 is a valve casing adapted to form practically part of the pipe the passage of
motive fluid through which to an engine is to be controlled, 1* being the inlet
branch and 1b the outlet branch; 2 is the valve for controlling the passage of the
motive fluid; it is arranged within the casing 1 and 3 is a lever arm fixed on the
spindle 4 of the valve; the outer end of this arm is pivoted at 5 to a block 6
located in the groove 7* of a collar 7 on the sleeve 7 mounted to slide end ways on
the governor spindle 8 which is mounted in a bearing 9 carried by the valve
casing and may be driven by means of a band and pulley 10 or in any other
convenient manner. The valve 2, which is of oscillating type, is made with a
conical end piece or plug 11 carrying a number of separate radiating bars or
arms 12 that are unconnected at the ends remote from the plug and are adapted to
control openings 13 (or rows of small holes) formed in a correspondingly shaped
chamber 14 which forms a seat for the valve and may conveniently be as shown,
made separate from the valve casing 1 and be secured therein either by screwing it
on to the said casing 1 or by means of studs 12" and nuts 12%, as shown, the
arrangement being such that when the governor is in action the bars or arms 12 of
the valve will be pressed by the motive fluid that is in contact with them, sideways
against the chamber so as to make a fluid-tight joint therewith, and the part 11 of
the valve will be forced against the seating 11 formed at the corresponding end
of the chamber 14 so as to make a fluid-tight joint therewith at this part and so
enable a stuffing box to be dispensed with at the place where the valve spindle 4
passes through the external wall of the chamber 14 to the lever arm 3 outside.
The valve might be of conical form externally as well as internally, the interior of
the casing being made to correspond. 15 is a spring placed around the valve
spindle 4 between the part 1° of the casing and the lever arm 3 on the spindle 4
to assist in keeping the part 11 of the valve 2 in place endways against the
seating 11*.
The sleeve 7 to which the governor arms 16 with weights 17 are pivoted, is
connected, by a pin 18 working in slots 19 in the driving spindle 8, to the inner
end of a coiled spring 20 that acts in tension and is arranged within the spindle 8,

page_text: the outer end of the spring 20 being connected to a cap or plug 21 that is or may
be so formed and arranged relatively to the end of the spindle 8 that it can be
readily disengaged therefrom and used as a speeder by varying the tension of the
spring 20 and therefore the action of the governor, and afterwards can be
re-engaged with the end of the spindle 8 in which condition it will then be held by
the action of the spring 20. In the example shown, the outer end of the spring 20
is connected to the plug 21 by a screwed rod 22 on which the plug 21 fits; and the
plug 21 is provided with pins or catches 23 adapted to engage in the corresponding
holes in the spindle 8.
The tendency of the balls 17 and arms 16 when revolved by the spindle 8, is to
fly outwards and so act, with projections 16* of the arms 16, against a collar 8*
fixed on the spindle 8 and thereby elongate the coiled spring 20 and close the
openings 13 controlled by the bars or arms 12, while the tendency of the spring 20.
is to resist the outward movement of the balls and arms. The action of the
speeder, by varying the amount of tension in the spring 20, is therefore to control
the outward movement of the balls and consequently the extent to which the steam
openings 13 will be uncovered for any particular speed of revolution.
Endways movement of the sleeve 7 may be limited in one direction by the
collar 8 on the driving spindle 8, and in the opposite direction by an adjustable
device, such as a set-screw 24, carried by the spindle bearing 9.
The dotted lines at IA and I in Figs. 1 and 3 indicate alternative positions
that can be given to the inlet and outlet branches 1 and 1° respectively of the
casing 1.
Having now particularly described and ascertained the nature of the said.
invention and in what manner the same is to be performed we declare that what we
claim is :-
1. The improved engine governor constructed, arranged, and operating sub-
stantially as hereinbefore described with reference to the accompanying drawings.
2. In an engine governor of the kind referred to the construction and arrange-
ment of the valve and its containing chamber substantially in the manner described
and illustrated.
3 In an engine governor avasing 1 of the form described end shown in combina-.
ton with a circular oscillating valve.
on with a circular oscillating valve.
Dated this 17th day or September 1895.
For the Applicants,
W. LLOYD WISE,
46 Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.