Improvements in Governors for Motive Power Engines.
Year: 1890

page_text: Date of Application, 23rd Oct., 1890
Complete Specification Left, 13th July, 1891-Accepted, 19th Sept., 1891
PROVISIONAL SPECIFICATION.
Improvements in Governors for Motive Power Engines.
I JOHN BAKER of Abergavenny in the County of Monmouth Mechanical
Engineer do hereby declare the nature of this invention to be as follows:-
My present invention relates to improvements in mechanical governors which are
used for controlling the running or revolving speed of steam or other fluid motive
power engines and the object thereof is to so construct the governor that it will act
in a more sensitive effective and quicker manner than is the case with mechanical
governors constructed as hitherto to attain which I arrange my improved governor
as follows that is to say I employ a disc having a grooved pulley either made with
or attached thereto and the said disc together with the grooved pulley is keyed or
otherwise fixed upon a shaft which is free to revolve in the bearings. Where
preferred in the place of the grooved pulley as aforesaid a suitable bevel or spur
wheel or any other ordinary mechanical means may be employed in order that the
said disc may receive motion from the crank shaft or other primary moving part
of the engine or the said disc may be secured to the crank shaft of the engine
direct thus dispensing with the necessity of the gearing aforesaid. At one side or
within the said disc I fix or arrange suitable slides which act as guides to two
specially formed weights. The said disc is arranged with an annular flange and
the outer edge of each specially formed weight is curved to the same radius as the
inner periphery of the said annular flange. Supported by means of the before
described slides are two bolts or rods each of which carries two bell cranks or
levers arranged with forked ends and having their opposite ends circular the
said circular ends fit freely into recesses formed at each side of the specially formed
weights so that any movement of the latter is imparted to the bell cranks as will be
well understood.
The forked ends of the bell cranks bear against the projecting parts of an
annular ring which fits freely in a groove formed in a sleeve which is either made
with or fixed to and supports two flat arms hereinafter to be described. Upon the
outer periphery of the disc are arranged three rollers which are carried upon
spindles or pins arranged to bear in and to be supported by two flat annular rings
arranged at either side of the disc. The said rollers are arranged at equal
distances apart around the outer periphery aforesaid of the disc and they carry an
outer annular weight which is supported laterally by the two flat rings arranged at
either side of the disc.
One of the spindles which carries a roller extends somewhat beyond one of the
flat rings and bears in the semicircular end of one of the arms fixed to or made
with the before described sleeve. Another arm extends in an opposite direction
and is made with or secured to said sleeve and its semicircular end bears on the
extended end of a pin or bolt which is employed as a stay for holding the flat rings
at each side of the disc at a required distance apart. The lower part of each said
arm is arranged with a projecting portion in a screw form and it extends at right
anglés to the face of the arm and curves to a screw form so as to slide in a groove
or screw formed cut made on a nut secured to one of the bearings or supporting the
shaft which drives the disc. The said nut is secured in stationary position while
the shaft aforesaid may revolve freely therein.
The hereinbefore described specially formed weights are each arranged with a
suitable pocket which carries a spiral spring compressing against a part of the
inner periphery of the flange of the disc and each said spring therefore tends to
cause the weights to close around the driving shaft.
When the disc revolves with the motion of the engine it causes the rollers to

page_text: revolve the annular weight in the opposite direction thereto and any increase in the
speed of the engine causes the specially formed weights to travel outwards radially
from the shaft by centrifugal force and by this means the circular ends of the bell
cranks are lifted or forced outwards from the. shaft and the forked ends thereof
travel simultaneously inwards bringing with them the ring which fits in the
groove of the sleeve and likewise the arms whose projecting lower portions sliding
in the screw form cuts or slots in the fixed nut causes the same to turn and thus
move round the flat rings at either side of the disc and the valve rod which
regulates the throttle stop or other similar valve being connected to one of said flat
rings is moved in accordance therewith and so adjusts the supply of steam or other
fluid to the motor and governs the speed thereof.
Dated this 20th day of October 1890.
H. F. BOUGHTON, M.I. Mech. E.,
Barnsley and Sheffield, Agent.
COMPLETE SPECIFICATION.
Improvements in Governors for Motive Power Engines.
I JOHN BAKER of Alexandra Road Thames Ditton in the County of Surrey
Mechanical 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 :-
My present invention relates to improvements in mechanical governors which are
used for controlling the speed of steam or other fluid motive power engines and the
object thereof is to so construct the governor that it will act in a more sensitive
and effective manner than is the case with mechanical governors constructed as
hitherto to attain which I arrange an improved mechanical governor substantially
as illustrated in the accompanying drawings in which Fig. 1 is a part sectional
elevation and Fig. 2 a transverse section taken on line a a of said Fig. 1. of my
said improved governor.
Similar letters and figures of reference denote corresponding parts in each view.
The said governor is arranged with a flanged disc D which has a grooved
pulley d¹ either made with or attached thereto and the said disc D together with
the grooved pulley d¹ is keyed or otherwise fixed upon a shaft S the latter being
free to revolve in bearings or supports b.
It will however be obvious that where preferred in the place of the grooved
pulley da suitable bevel or spur wheel or any other ordinary mechanical means
may be employed in order to transmit the motion from the crank shaft or other
primary moving part of the engine to said disc D or the disc D may be secured to
the crank shaft of the engine direct thus dispensing with the necessity of the
gearing aforesaid.
At one side of the flanged disc D are suitable slides E which act as guides to the
two specially formed weights G.
The outer edge g¹ of each weight G is curved to the same radius as the inner
periphery of the annular flange d² of disc D.
Supported by the slides E are two bolts or rods R each of which carries two
bell crank levers T.
Each said bell crank lever T has a forked portion t¹ at the end of one arm thereof
and a circular portion t² at the end of the other arm.
The said ends fit or bear freely into recesses arranged at each end of the
weights G so that any movement of the latter is imparted to the said bell cranks T
as will be well understood.
The forked ends t¹ of the bell cranks T bear on or against the projecting parts m'
of a ring M which latter fits freely in a groove p¹ formed in a sleeve P which latter
is either made with or fixed to a double flat arm Q.
Upon the outer periphery of the disc D are arranged three rollers U which are

page_text: carried upon spindles or pins p² arranged to bear in and to be supported by two
flat rings W arranged at either side of said disc D. The rollers U are arranged
at equal distances apart around the outer periphery of the disc D as shown at
Fig. 2 and the said rollers U carry or support and work an outer annular weight Y
which is guided or supported laterally by the two flat rings W.
One of the spindles p² is extended as shown at the upper part of Fig. 1 and bears
in a semicircular end of one arm of the double armed lever Q.
The opposite arm thereof extends in a direct opposite direction and bears on the
extended portion of a pin or bolt L which is employed as a stay for holding the flat
rings W at each side of the disc D at a required distance apart and the stays l¹
(Fig. 2) are also used for said purpose.
The middle or boss portion of the double armed lever Q is arranged with two
projecting portions g³ which are of a screw form as shown they extend at right
angles to the face of said armed lever Q and fit into threaded formed grooves or
cuts x formed on nut X which latter is secured to the bearing or support b. The
end of shaft S bears in the nut X which latter is arranged with a set screw a² for
lateral adjustment. Each weight G is arranged with a suitable pocket y' within
which is fitted a spiral spring which presses against a part of the inner periphery
of the flange d of disc D and each spring therefore tends to cause the weights G
to close around the shaft S.
The operation of my said improved governor is a follows:
As the disc D is made to revolve with the motion of the engine it causes the
rollers U to revolve the annular weight Y in the opposite direction to said disc D
and any increase beyond the normal speed of the engine immediately causes the
weights G to travel outwards radially from the shaft S by centrifugal force and
by this means the ends t² of bell cranks T are lifted and the forked ends t¹ travel
simultaneously inwards towards the disc D thus bringing with them the ring M and
the armed lever Q which latter being operated by the screw formed grooves
receives a simultaneous lateral and partly revolving motion and this motion is
imparted to the rings W and rollers U which latter move round the periphery of
the disc D in accordance therewith.
The rod J may be connected to any part of the double armed lever Q or to
either of the rings W and it may operate a throttle valve V as shown (Fig. 2) or
be connected to any other form of valve or other device for regulating the supply
of motive power to an engine.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is:
1. In governors for motive power engines the use of a flanged disc D revolved
from the engine and operating by means of friction rollers U an annular weight Y
in combination with weights G pressed towards each other by springs and forced
apart by centrifugal force in accordance with the speed of the engine thus operating
bell cranks T which in combination with sleeve M double armed lever Q and nut X
regulate a throttle valve V or its equivalent substantially as described or any mere
modification of said combination.
Dated the 10th day of July 1891
H. F. BOUGHTON,
Agent for the Applicant.