Improvements connected with Governor Apparatus Used with Steam and other Fluid Pressure Motors.
Year: 1896

page_text: Date of Application, 30th Jan., 1896
Complete Specification Left, 11th Feb., 1896-Accepted, 14th Mar., 1896
PROVISIONAL SPECIFICATION.
Improvements connected with Governor Apparatus Used with Steam
and other Fluid Pressure Motors.
We, FREDERICK CLENCH, and THOMAS SCOTT KING, both of Lincoln Works,
Chesterfield, County of Derby, Mechanical Engineers, do hereby declare the nature
of this invention to be as follows:-
This invention relates to certain improvements in governor apparatus for
regulating the speed of steam or other fluid pressure motors, and more particularly
that type of governor in which the centrifugal force of the governor balls or
weights are opposed and balanced by a spring.
The invention consists of a combination of a governor head having a pad so
modified in shape as to enable the speed to be varied to suit the particular conditions
under which the governor is to work.
The governor consists of revolving head having two or more balls on pivoted
hell crank levers. The centrifugal force of the balls is equaled by the resistance
of a spring.
In order to obtain spring compressions in the same ratio as the nett centrifugal
force of the balls for each position, the pad on which the levers or rollers thereon
press is altered from a straight pad by making the surface convex or concave
according as the governor head is ordinary or inverted. The movement of the
spring relative to the movement of the balls is thereby modified and the spring so
compensated as to obtain equal increments of speed for equal radial movements of
the governor balls.
By this method we obtain an astatic governor, or a governor having equal
increments of speed for equal radial movements of the balls according as the face
of the pad is varied in form, or a governor having proportionate variations of speed
in relation to the maximum variation, and in the same ratio as the movements of
the balls in relation to their maximum movement.
Dated this 30th day of January 1896
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said F. Clench and T. S. King.
Improvements connected with Governor Apparatus Used with Steam
and other Fluid Pressure Motors.
We, FREDERICK CLENCH, and THOMAS SCOTT KING, both of Lincoln Works,
Chesterfield, County of Derby, Mechanical 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 relates to certain improvements in governor apparatus for
regulating the speed of steam or other fluid pressure motors, and more particularly
that type of governor in which the centrifugal force of the governor balls or
weights are opposed and balanced by a spring.

page_text: The invention consists of a combination of a governor head having a pad so
modified in shape as to enable the speed to be varied to suit the particular conditions
under which the governor is to work.
The governor apparatus is represented on the annexed drawings, Figures 1
to 10.
Figures 1 and 2 detail drawing of governor head showing curved arms acting on
roller.
Figures 3 and 4 detail drawing of governor head showing governor arms fitted
with rollers in end acting on shaped pad.
Figures 5 and 6 detail drawing of governor head showing curved arms acting on
kuife edge pad.
Figures 7 and 8 detail drawing of inverted governor head showing arms fitted
with rollers in end acting on shaped pad.
Figures 9 and 10 detail drawing of inverted governor head showing arms fitted
with rollers acting on shaped pad.
The governor consists of revolving head A having two or more balls B, B, on
bell crank levers C, C, pivoted on pins C. The centrifugal force of the balls B, B,
is equaled by the resistance of a spring D.
In order to obtain spring compressions in the same ratio as the nett centrifugal
force of the balls for each position, the pad A on which the levers C, C, or
rollers E, E, thereon press is altered from a straight pad A Figure 1 by making
the surface convex as at Figures 3, 4, 9 and 10, or concave as at Figures 7 and 8
according as the governor head is ordinary or inverted as shown.
The movement of the spring relative to the movement of the balls is thereby
modified and the spring so compensated as to obtain equal increments of speed for
equal radial movements of the governor balls.
By this method we obtain an astatic governor, or a governor having equal
increments of speed for equal radial movements of the balls according as the face
of the pad is varied in form, or a governor having proportionate variations of
speed in relation to the maximum variation, and in the same ratio as the movements
of the balls in relation to their maximum movement.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
The improvements connected with governors of steam and other fluid pressure
motors consisting of a combination of a governor head as hereinbefore described
having a pad A modified in shape so as to enable the speed to be varied to suit the
particular conditions under which the governor is to work.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said F. Clench and T. S. King.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said F. Clench and T. S. King.