Year: 1886

page_text: Date of Application, 29th Oct., 1886.
Complete Left, 28th July, 1887.
Complete Accepted, 2nd Sept., 1887
We WILLIAM HORNSBY and FREDERICK JAMES CRIBB both of Spittlegate Iron-
works Grantham in the county of Lincoln Engineers do hereby declare the nature
of this invention to be as follows:-
In constructing Governors according to our invention we employ a circular or
elliptical spring or combination of springs with two or more balls or weights fixed
at opposite sides. We carry the Spring or Springs by a spindle passing through a
hole in one part of the spring equidistant between the two balls or weights and
rigidly fastened to the spring at the opposite side so that a rotary motion given
to the spindle by the Steam or other Engine is communicated to the spring or
combination of Springs. The centrifugal force of the rotating balls or weights
causes an elongation of the diameter of the spring or springs in the plane of the
rotation and as the spring or springs can at the unfastened side freely move
on the shaft motion is thereby communicated to a sliding bush or rod connected
with the throttle valve by any suitable means or the motion so produced can in
any other convenient way be used for regulating the admission of steam into
the Cylinder or Cylinders of the Engines or of controlling the speed of Engines
other than steam Engines. Or the spring or springs may be fastened to a hollow
shaft rotated from the Engine and the motion of the spring or springs produced
by the centrifugal force of the balls or weights may be conveyed by a rod sliding
through the hollow shaft to the means used for controlling the Engine. In con-
nection with this Governor a spiral spring is sometimes used to regulate or alter
the speed or movement of the main spring or springs this being effected by
tightening or releasing the said spiral spring where it impacts on the revolving
spring.
Dated this Twenty eighth day of October 1886.

page_text: COMPLETE SPECIFICATION..
Improvements in Governors of Steam and other Engines.
We, WILLIAM HORNSBY, and FREDERICK JAMES CRIBB, both of Spittlegate Iron
Works, Grantham, in the County of Lincoln, 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:-
In constructing governors according to our invention we employ a circular or
elliptical spring or combination of springs with two or more balls or weight fixed at
opposite sides. We carry the spring or springs by a spindle passing through a hole
in one part of the spring equidistant between the two balls or weights and rigidly
fastened to the spring at the opposite side so that a rotary motion given to the spindle
by the steam or other engine is communicated to the spring or combination of springs.
The centrifugal force of the rotating balls or weights causes an elongation of the
diameter of the spring or springs in the plane of the rotation and as the spring or
springs can at the unfastened side freely move on the shaft, motion is thereby com-
municated to a sliding bush or rod connected with the throttle valve by any suitable
means or the motion so produced can in any other convenient way be used for
regulating the admission of steam into the cylinder or cylinders of the engines or of
controlling the speed of engines other than steam engines. Or the spring or springs
may be fastened to a hollow shaft rotated from the engine and the motion of the
spring or springs produced by the centrifugal force of the balls or weights may be
conveyed by a rod sliding through the hollow shaft to the means used for controlling
the engine. In connection with this governor a spiral spring is sometimes used to
regulate or alter the speed or movement of the main spring or springs this being
effected by tightening or releasing the said spiral spring where it impacts on the
revolving spring.
Our invention is illustrated by the accompanying drawing in which Figure 1 shows
a front elevation and Figure 2 a side elevation of one form of governor constructed
as above described, the same letters are used throughout the drawings to denote the
same parts.
F is an upright spindle to the upper end of which is fixed a cap G to which is
attached the spring B which may be of circular or elliptical shape and in one or
more pieces
On this spring at opposite sides we place two or more balls or weights A and
through the balls or weights and through the spring B we carry two horizontal pins E
the inner ends of which are attached to a collar I upon and free to rise and fall
the spindle F. On the outer end of each of these pins we fix a fast collar or other
stop to prevent the balls or weights passing two far outwards.
upon
The lower part of the spring B is attached to a sleeve C which is upon the
spindle F and free to move up or down on it.

page_text: Rotary motion being given to the spindle F in any usual manner, and by it
communicated to the spring, the centrifugal force of the balls or weights A causes an
elongation of the diameter of the spring in the plane of its rotation raising the
sleeve C and thus communicating motion by the inner spindle J to any convenient
arrangement of parts for regulating the admission of steam to the cylinder.
The sleeve C and the spindle J are connected by the pins L and L' which pass
through a slot in the outer spindle F preventing the sleeve C moving too far in either
direction.
Between the sleeve (and the collar I we generally mount a spiral spring D and a
pair of lock nuts H for regulating the centrifugal force of the balls or weights.
Figures 3 and 4 show respectively a front elevation and a plan of a modification
of the above described governor. In this modification the spindle F is intended to
be fixed horizontally and motion is communicated to it by the pulley K or in any
other convenient manner.
Substantially the construction of the governor is the same as in Figures 1 and 2
except that the spiral spring D and the lock nuts H are fixed outside the pulley K.
We do not confine ourselves to the particular arrangement of parts shown nor to
the use of our invention in connection with steam engines only as the invention is
applicable to other than steam motors.
Having now particularly described and ascertained the nature of our said invention,
and in what manner the same is to be performed we declare that what we claim is :-
1. The use of circular or elliptical springs in conjunction with weights and in one
or more pieces for the purpose of regulating the speed of steam or other engines
substantially as hereinbefore described.
2. The combination of a circular or elliptical spring in one or more pieces attached
at two opposite points to two collars one fixed to a spindle the other to a sleeve sliding
thereon, and balls or weights attached to the spring at points intermediate between
the collars and also capable of sliding along arms radially from a collar free to slide
along the spindle substantially as described for the purpose of regulating the speed
of steam or other engines.
3. In combination with the above the use of an adjustable spiral spring bearing
upon the sliding sleeve to modify the action of the circular or elliptical spring
substantially as described.
1
1 11
371 ↑
" r
1
1008
WILLIAM HORNSBY.
F. J. CRIBB.