Improvements in Speed Regulators or Governors for Steam or other Engines.
Year: 1893

page_text: Date of Application, 23rd Sept., 1893
Complete Specification Left, 22nd June, 1894-Accepted, 29th July, 1894
TRUVIDIONAL DIBUITICATION.
Improvements in Speed Regulators or Governors for Steam or
other Engines.
We, EMANUEL RAYNER of 44 High Street Tewkesbury in the County of
Gloucester, Engineer and GEORGE FREDERICK ALDER of Tudor Place Barton
Street Tewkesbury in the same county Draughtsman, do hereby declare the nature
of this invention to be as follows:-
Our invention relates to improvements in speed regulators or governors for
regulating the admission of steam (or other aeriform fluid) to steam (or other fluid
pressure) engines, where centrifugal force is used for that purpose.
To effect these improvements we so arrange the balls, weights, or other parts of
the governor, (which are operated by the action of centrifugal force) that they
shall be free to move up and down upon the governor arm or pendulum to which
they are usually attached, or the governor arm or pendulum itself (with the
weight) may be caused to slide, the object being to vary the distance between the
axis or fulcrum and the arm weight or ball attached thereto the distance being
regulated by the amount of centrifugal force in operation thereby giving additional
variation to the height and base of the cone described by the arms of the
governor.
The weight or ball upon the governor arm or pendulum, or the governor arm
itself, is held in a normal position as regards the distance from the axis or fulcrum
to the centre of the arm-weight by means of a suitable spring arrangement or
analogous device which does not allow the sliding action to take place until the
centrifugal force is sufficient to overcome the resistance offered.
In governors where the centre-weight or counterpoise is actuated by rollers or
similar means having their axis in the governor arm, and 'lifting the centre weight
by means of plates secured to or by projections on the said centre-weight, we further
increase the lifting action by placing the said plates or projections at a suitable
acute angle with the axis of the governor or governor centre shaft instead of
placing them at right angles.
In any form of centrifugal governor in which arms and arm-weights are employed
we further increase the sensitiveness of the governor proper by extending or
lengthening the arms from the fulcrum in a direction away from the arm weight,
on which extension a suitable fixed or moveable weight serves as a counter-balance
to the arm-weight.
Dated thin oond antambor 1.802.
Improvements in Speed Regulators or Governors for Steam or
other Engines.
We, EMANUEL RAYNER of 44 High Street Tewkesbury in the County of
Gloucester, Engineer, and GEORGE FREDERICK ALDER of Tudor Place, Barton
Street, Tewkesbury, in the same county, Draughtsman, 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:—
Our invention relates to improvements in speed regulators or governors for
..:1

page_text: regulating the admission of steam (or other aeriform fluid) to steam (or other fluid
pressure) engines where centrifugal force is used for that purpose.
To effect these improvements we so arrange the balls, weights, or other parts of
the governor (which are operated by the action of centrifugal force) that they
shall be free to move up and down upon the governor arm or pendulum to which
they are usually attached, or the governor arm or pendulum itself (with the
weight) may be caused to slide, the object being to vary the distance between the
axis or fulcrum and the arm-weight or ball attached thereto; this distance being
regulated by the amount of centrifugal force in operation, thereby giving additional
variation to the height and base of the cone described by the arms of the
governor.
The weight or ball upon the governor arm or pendulum-or the governor arm
itself, is held in a normal position as regards the distance from the axis or fulerum
to the centre of the arm weight, by means of a suitable spring arrangement, or
analogous device, which does not allow the sliding action to take place until the
centrifugal force is sufficient to overcome the resistance offered.
In governors where the centre-weight or counterpoise is actuated by rollers or
similar means, having their axis in the governor arm, and lifting the centre-weight
by means of plates secured to, or by projections on, the said centre-weight, we
further increase the lifting action by placing the said plates or projections at a
suitable acute angle with the axis of the governor or governor central shaft, instead
of placing them at right angles.
In any form of centrifugal governor in which arms and arm-weights are employed
we further increase the sensitiveness of the governor proper by extending or
lengthening the arm from the fulcrum in a direction away from the arm-weight
on which extension a suitable fixed or movable weight serves as a counter-balance
to the arm weight.
And in order that our said invention may be particularly described and
understood reference is hereby made to the accompanying drawing, in which
similar letters of reference indicate corresponding parts.
The drawing is an elevation, partly in section, showing the method of application
of our invention to a centrifugal governor.
a is the central shaft, the top of which is suitably forked to receive the arms c, c²,
the pin through the central shaft a being the fulcrum of the two arms c c'. On
these two arms are the collars or shoulders d, d. The balls or weights e, el are
suitably bored to go on the arms c c', and to receive the springs f. The locknuts g, g',
on the ends of the arms c c¹ keep the springs fin proper position, and also serve as
a means of adjusting the pressure on the said springs, which pressure is so adjusted
as to keep the balls or weights e e' against the shoulders dd', until the governor
begins to rise by the action of centrifugal force, when the springs are compressed,
and the balls travel on the arms c c', away from the fulcrum 6 over the lock-
nuts g, g'.
Small steel rollers are provided which rotate on centres in the arms c, c,
which rollers lift against the plates or projections when the governor is at work.
These plates or projections we place at any desired acute angle with the central
shaft a, for the purpose of obtaining any desired rate of lifting action of the
counterpoise or centre weight.
The weights are on the top of the arms c c¹ to serve as counter balances, and
may be fixed, as shown, or as illustrated at d. e. f. g.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is
1. In apparatus for governing steam or other engines, the utilization of the
variations in the height and base of the cone described by the governor arms,
substantially as hereinbefore described and set forth, and illustrated in the
accompanying drawing.

page_text: 2. In apparatus as aforesaid, the utilization of the varying length between the
fulcrum of the governor arms, and the weights or balls on the said governor arms
substantially as hereinbefore described & set forth.
3. In apparatus as aforesaid, the method of placing the plates or projections (as.
shown at ) or analogous means of lifting the counterpoise or centre-weight from
and by the governor arms, at an acute angle whereby the range and rate of lift is
increased, substantially as hereinbefore described and set forth and illustrated in
the accompanying drawing.
4. In apparatus as aforesaid, in which arms and armweights are employed, the
method of extending the arms from the fulcrum in a direction away from the arm-
weights and placing thereon additional fixed or movable weights to serve as
counterbalances to the aforesaid arm weights, substantially as herein before
described and set forth and illustrated in the accompanying drawing.
Dated this Twenty-first day of June One thousand eight hundred and ninety-
EMANUEL RAYNER.
GEORGE FREDERICK ALDER.