Improvements in and relating to Engine Governors.
Year: 1896

page_text: Date of Application, 5th Feb., 1896
Complete Specification Left, 2nd Nov., 1896-Accepted, 5th Dec., 1896
PROVISIONAL SPECIFICATION.
Improvements in and relating to Engine Governors.
We, JOSEPH MALLINSON, of 311 Cowbridge Road, Cardiff, in the County of
Glamorgan, Engineer, and WILLIAM PIERIE GIBBS, 7 Kingsland Road, Canton,
Cardiff, in the County of Glamorgan, Analytical Chemist, do hereby declare the
nature of this invention to be as follows:-
This invention has for its object improvements in and relating to engine
governors.
The apparatus is designed with a view to the obtaining of a governor which will
occupy a minimum of space combined with lightness of construction and simplicity of
action. It is especially applicable to small motors where a delicacy of regulation and
steadiness of speed are required; but it is also adapted to the governing of engines
and motors of any size.
The device consists of a vertical shaft or spindle onto which is firmly fixed a
circular pan, or its equivalent, with a sloping or conical shaped bottom through the
centre of which the shaft or spindle passes, means being provided whereby the shaft
may be made to rotate. The angle or degree of slope of the conical bottom of the pan,
or its equivalent, may be varied to suit that found most desirable in practice.
In the pan, or its equivalent, is placed a ball; or, two or more balls may be used as
found most advantageous according to the varied requirements.
Fitting freely inside the pan, or its equivalent, and resting on top of the ball or balls,
is a circular plate which may be flat or curved or otherwise shaped, through the centre
of which the shaft or spindle passes in such a manner as to allow the plate to move
freely up or down on the shaft.
Part of the shaft and the pan, or its equivalent, containing the ball or balls and
plate, are enclosed in a suitable case, and the whole mounted upon a suitable
support.
In using the apparatus the shaft is made to rotate by means of a belt and pulley, or
by any other suitable arrangement, the pan, or its equivalent, and ball, or balls,.
thereby rotating with it. The centrifugal force exerted upon the ball or balls causes:
it or them to rise up the slope of the pan bottom, the height to which it or they rise
being regulated by and commensurate with the speed at which the shaft rotates. As
the ball or balls rise the circular plate which rests upon it or them is thereby also
raised, and the plate being connected with the valve by any known or suitable means
ordinarily used in connecting governor balls and valve, is thus by its rise or fall made
to regulate or control the speed at which the engine or motor runs.
Dated this 3rd day of February 1896.
JOSEPH MALLINSON.
WM. P. GIBBS.
We, JOSEPH MALLINSON, 150 Pembroke Road Canton, Cardiff, late of 311 Cowbridge
Road, Cardiff, Engineer, and WILLIAM PIERIE GIBBS, 7 Kingsland Road, Canton,
Cardiff, Analytical Chemist, do hereby declare the nature of this invention and in
Price 8d1

page_text: 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 to construct a governor which will occupy a
minimum of space combined with lightness of construction and simplicity of action.
It is especially applicable to small.motors where a delicacy of regulation and steadiness
of speed are required; but it is also adapted to the governing of engines or motors of
any size, and consists essentially of two working surfaces having a common vertical
axis, the lower surface being internally conical and rotated about its axis by the
engine while the upper surface is externally conical or of other suitable shape, so that
the distance between the two surfaces diminishes as the distance from the axis
increases. The upper surface is connected to the regulating valve and is capable of
motion in an axial direction, and bears upon one or more balls placed on the lower
working surface so that as the said lower surface is rotated they rotate also and, in
virtue of the centrifugal component of their motion, roll in a path at a definite radius
from the common axis of the working surfaces, thereby causing the upper and non-
rotatable surface, and the regulating valve connected with it, to take up a position
dependent on the velocity of rotation of the lower surface.
The accompanying drawing shows in sectional elevation one arrangement of engine
governor constructed according to this invention.
An outer or lower dished pan a having an internal conical surface bis mounted on,
or forms a part with, a hollow vertical shaft c provided with a collar d bearing on a
washer or liner e of anti-friction metal. A bevel wheelf is mounted on the shaft c and
gears with a bevel wheel g driven from the engine through a pulley in the usual
manner. Inside the pan a is a second dished pan or disc i mounted, and free to slide
vertically, on the hollow shaft or spindle c and having a conical outer surface / facing
the internal conical surface b of the pan a, between which surfaces are placed balls m.
The disc i is connected by means of a rod n to a regulating valve of any suitable
construction in the casing o.
•
On rotary motion being communicated by the engine to the outer pan a through
the pulley and gearing fg the balls m are set in rotation and roll between the two
surfaces in a path whose radius depends on the velocity of rotation of the pan a;
and as the relative positions of the pan a and disc i depend on the positions of the
balls m the disc i is raised or lowered as the velocity of rotation of the pan a is
increased or diminished, the regulating valve being thereby correspondingly closed
or opened as will be readily understood.
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. An engine governor, comprising a lower pan with conical surface rotated by
the engine, an upper disc connected to the regulating valve, and one or more balls
between the surfaces of the said pan and disc, substantially as described.
2. The combination of parts constituting our improvements in and relating to
engine governors, the whole arranged constructed and operating substantially as
hereinbefore described and illustrated by the drawing hereunto annexed.
Dated this 2nd day of November 1896.
WHEATLEY & MACKENZIE,
40 Chancery Lane, London, W.C., Agents.