Year: 1886

page_text: I ROBERT WILDING of Poulton-le-Fylde in the County of Lancaster Engineer
do hereby declare the nature of this invention to be as follows:-
The object of this invention is to construct an efficient and compact regulating
attachment for causing the centrifugal action of the governor balls to regulate the
admission of steam to the cylinder of the engine so as to control the speed of the
engine and to shut off the steam altogether in the event of the engine "running
away" owing to a sudden removal of the load.
Upon the governor spindle I key or otherwise fix a bevel wheel driving (by
means of a similar wheel or pinion a short horizontal shaft carried in suitable
fixings and having a friction wheel keyed onto about its centre between the two
fixings.
Within these fixings are carried two wrought iron cheeks vibrating upon the
same centre as the horizontal shaft.
These cheeks are bolted together so as to form a vibrating frame carrying in its
upper part one, and in its lower part two friction wheels by which either a forward
or a backward motion is given to a fifth friction wheel carried on separate fixings
through the boss of which wheel slides a long nut to which it gives rotary motion
by means of a sliding key.
Through this long nut passes the rod to the valve or cut off motion which is
screwed where it passes through the nut and squared where it passes through the
fixing in which it slides so as to prevent it from turning round.
Thus it will be evident that when the fifth friction wheel above named is
caused to revolve in either direction according to which of the friction driving
wheels is moved into contact with it) the long nut is caused to revolve so as to
lengthen or shorten the cut off rod.
When this fifth friction wheel is not in gear with either of the drivers it remains
stationary and the long nut and rod slide endwise together, their action is then the
same as that of the ordinary governor, being moved by forked bell-crank levers
(one of which embraces the long nut and the other the governor bobbin) or other
equivalent device.
On the shaft to which these bell crank levers are fixed, is also keyed a lever
carrying a bevil toothed segment gearing with a bevil pinion, attached to a disc,
and turning on a stud.

page_text: This stud passes through a slot in an arm of one of the cheeks before mentioned,
the slot allowing the cheek to vibrate freely as above described at the same time
that each movement up or down of the governor balls causes the disc to be partially
rotated by the toothed segment and pinion.
The circumference of this disc is always in contact with two studs fixed in the
arm of the cheek, and the disc is provided with curves and inclines so formed that
the cheek (and consequently the whole vibrating frame carrying the friction wheels)
as the governor balls rise above or fall below their normal plane is constantly being
pushed to the right or left by the circumference of the disc acting against the
studs, thus causing either one or other of the driving friction wheels to be brought
into contact with and give motion to the fifth friction wheel through which the
long nut passes.
1
When the governor balls are revolving in their normal plane neither of the
driving friction wheels are in contact with the fifth or nut wheel nor are either of
them in contact when the balls fall to their lowest position in this case the action
of the bell crank lever on the valve rod is that of the ordinary governor.
When the engine is 'starting and the governor bails are in their lowest position
neither of the friction wheels is in contact with the nut wheel, and contact does
not take place until the speed of the governor is such as to raise the balls a little,
when the partial rotation of the disc brings the inclined plane upon its circum-
ference into contact with one of the studs and causes the frame to commence its
vibration, thereby bringing one of the friction wheels into contact with the nut
wheel, (and lengthening or shortening the valve rod as the case may be).
This contact will continue until the governor balls revolve in their normal plane,
when in consequence of the altered position of the inclined planes on the circum-
ference of the disc both friction wheels will be out of contact with the nut wheel:
When the governor balls rise above their normal plane the further rotation of the
disc brings the incline on its opposite side into contact with the other stud causing
the frame to vibrate in the contrary direction, and bringing the other driving
friction wheel into contact with the nut wheel so reversing the action on the
valve rod.
The circumference of the disc may be so shaped as to maintain the contact of
one of the friction wheels with the nut wheel at all times when the governor balls
are revolving higher than in their normal plane; this would give additional safety
in the case of an engine "running away" through the weight being suddenly
thrown off it, the bell-crank lever also acting at the same time as in an ordinary
governor.
T
GEORGE DAVIES,
Agent for the Applicant,
4, St. Ann's Square, Manchester.

page_text: I ROBERT WILDING of Poulton-le-Fylde in the County of Lancaster Engineer
do hereby declare the nature of my invention for "IMPROVEMENTS IN GOVERNORS
FOR STEAM ENGINES" and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:—
The object of this invention is to construct an efficient and compact regulating
attachment for causing the centrifugal action of the governor balls to regulate the
admission of steam to the cylinder or cylinders of the engine so as to control the
speed of the latter, and to cut off the steam altogether in the event of the engine
"running away" owing to a sudden removal of the load.
The nature of my said invention and the manner in which the same is to be
carried into practical effect will be readily understood on reference to the two
sheets of drawings hereunto annexed and the following explanation thereof.
On Sheet 1. of the drawings Fig. 1 is a front elevation of steam engine governor
with my improvement shown as applied thereto.
Fig. 2 is a back view of the same-Fig. 3. an end view-Fig. 4. a plan view and
Fig. 5. a horizontal section.
On Sheet 2 of the drawings Figs. 6, 7 and 8. are detached views (upon a larger
scale) of portions of my invention hereinafter more particularly referred to.
T, T is the governor spindle. U, U the balls and V, V the sliding weight.
Upon the governor spindle T, T I key or otherwise fix a bevil wheel indicated
by the dotted lines at W, W driving (by means of a similar wheel or pinion) a short
horizontal shaft A, A, carried in suitable fixings B and B and having a friction
wheel D D keyed on to about its centre between the two fixings B and B'. Within
these fixings are carried two wrought iron cheeks C and C¹, vibrating upon the
same centre as the horizontal shaft A, A, These cheeks C, and C¹, are boltel
together so as to forin a vibrating frame carrying in its upper part a friction
wheel 1. driven by the friction wheel D D (see detached view Fig. 6.) and in its
lower part two friction wheels 2 and 3. by which either a forward or a backward
motion is given to a fifth friction wheel E E through the boss of which slides a
long nut G, G to which it gives rotary motion by means of a sliding key.
Through this long nut G G, passes the rod H. H. to the valve or "cut-off"
motion which rod H, is screwed where it passes through the nut G, G, (see Fig. 5)
and it is squared where it passes through the bracket K K in which it slides so as
to prevent it from turning round.
Thus it will be evident that when the fifth friction wheel E E above named is.
caused to revolve in either direction (according to which of the friction driving
wheels 1. or 2. is moved into contact with it by the vibration of the frame C, C¹).
the long nut G G is caused to revolve so as to lengthen or shorten the cut-ou
rod H H.
When this fifth friction wheel E E is not in gear with either of the drivers (as
shown at Fig. 6) it remains stationary and the long nut G, G, and rod H H, slide
endwise together, their action is then the same as that of the ordinary governor
rod being moved by forked bell-crank levers L, L, and M M one of which embraces
the long nut G, G, and the other the governor bobbin V (see Fig. 1.) On the
shaft P, P to which these bell crank levers L and M are fixed, is also keyed
a lever N, N carrying a bevil toothed segment N¹ gearing with a bevil pinion O, O
attached to or made in one piece with a disc R, R (see detached section Fig. 8.) and

page_text: turning on a stud S S. This stud S, S, passes through a slot in an arm of one of
the cheeks C, C¹ before mentioned see Fig. 7. the slot allowing the cheek to vibrate
freely as above described; at the same time that each movement up or down of the
governor balls U U, causes the disc R, R to be partially rotated by the toothed
segment N¹ and pinion O.
The circumference of this disc R, R is always in contact with two studs a and b
fixed in the arm of the cheek C¹ and the disc R. R. is provided with curves and
inclines so formed that the cheek C¹ (and consequently the whole vibrating frame
carrying the friction wheels 1. 2. 3. as the governor balls U, U rise above or fall
below their normal plane, is constantly being pushed to the right or left by
the circumference of the disc R R acting against one of the studs a, or, b―Thus
causing either one or the other of the driving friction wheels 1. and 2. to be
brought into contact with and give motion to the fifth friction wheel E E through
which the long nụt G. G passes.
When the governor balls U U are revolving in their normal plane neither of the
driving friction wheels 1. or 2 are in contact with the fifth or nut wheel E E (as
shown at Fig. 6) nor are either of them in contact when the balls fall to their
lowest position; in this case the action of the bell crank levers L or M on the valve.
rod H, H is that of the ordinary governor.
When the engine is starting and the governor balls U, U are in their lowest
position neither of the friction wheels 1 or 2 is in contact with the nut wheel E E
and contact does not take place until the speed of the governor is such as to raise
the balls U U a little, when the partial rotation of the disc R R brings the.
inclined plane upon its circumference into contact with the stud a, a and causes
the frame C, C, to commence its vibration thereby bringing the friction wheel 2, 2.
into contact with the nut wheel E, E, (and lengthening or shortening the rod H, H
as the case may be): this contact will continue until the governor balls U, U revolve
in their normal plane, when in consequence of the altered position of the inclined
planes on the circumference of the disc R, R both friction wheels 1. and 2. will be
out of contact with the nut wheel E, E. When the governor balls U, U rise above
their normal plane the further rotation of the disc R, R brings the incline on its
opposite side into contact with the stud b, b causing the frame C, C¹ to vibrate in
the contrary direction and bringing the friction wheel 1. 1. into contact with the
nut wheel E E so reversing the action on the valve rod H H. The circumference
of the disc R, R is so shaped as to maintain the contact of the friction wheel 1. J.
with the nut wheel E, E at all times when the governor balls U, U. are revolving
higher than in their normal plane (as shown at Fig. 7.) this would give additional
safety in the case of an engine "running away" through the weight being suddenly
thrown off it, the lever M also acting at the same time as in ordinary governors.
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
The combination of parts forming an improvement in, or attachment to steam
engine governors for regulating the admission of steam to the cylinders of steam
engines so as to control the speed, constructed and operating substantially as
hereinbefore particularly described and illustrated by the drawings annexed.
Dated this 18th day of Novembar 1000