Improved Means of Adjusting Governors.
Year: 1894

page_text: Date of Application, 10th Nov., 1854
Complete Specification Left, 6th Aug., 1895-Accepted, 7th Sept., 1895
PROVISIONAL SPECIFICATION.
Improved Means of Adjusting Governors.
JOHN HUGHES of 47, Victoria Street, Westminster, in the County of London,
Engineer, and CLAUDE WILLIAM HILL of Eversleigh, Claremont Road,
Highgate, in the County of London, Engineer do hereby declare the nature of
this invention to be as follows:-
This invention relates to an improved means of varying the governing speed of
engines, and more especially those fitted with governors of the flywheel type. Its
object is to provide a spring the pressure of which may be added, to a greater or
less degree, to that of the main springs of the governor so causing the governor to
exercise control at a greater or less speed. To carry this invention into effect we
provide a cylinder, which we call the spring cylinder, the piston of which is pressed
down by a spring. In proximity to this cylinder we provide another, which we
call the screw cylinder, the piston of which may be moved by means of a screw.
These two cylinders are mounted together on any convenient stationary portion of
the engine, and are connected by a tap. From the spring cylinder a pipe is led to
a running joint on the shaft and from this running joint to a cylinder on the
governor the piston of this cylinder being suitably connected to the governor
weights or other moving part. The system of cylinders and pipes is filled with oil
or other suitable fluid. If now the piston of the screw cylinder be advanced more
oil will be forced into the spring cylinder, so pressing the spring back and causing
it to exert an increased pressure. This increased pressure will be transmitted by
the oil to the governor, so assisting its main springs and causing it to govern at an
increased speed. Withdrawing the piston of the screw cylinder will produce a
reverse effect.
In cases where automatic adjustment is necessary we provide a solenoid or
other automatic arrangement in place of, or in addition to, the screw of the screw
cylinder.
Dated this 9th day of November 1894
JOHN HUGHES.
CLAUDE WILLIAM HILL.
COMPLETE SPECIFICATION.
Improved Means of Adjusting Governors.
JOHN HUGHES of 47, Victoria Street, Westminster, in the County of London,
Engineer and CLAUDE WILLIAM HILL of Eversleigh, Claremont Road
Highgate, in the County of London, Engineer 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 an improved means of varying the governing speed of
engines and more especially those fitted with governors of the fly-wheel type, the
variation being effected while the engine is running.
Its object is to provide a spring the pressure of which may be varied, and added
to that of the main springs of the governor in a greater or less degree so causing
| Price 811

page_text: the governor to exercise control at a greater or less speed. To carry this invention
into effect we provide a cylinder C₁ Fig. 1, which we call the spring cylinder the
piston P of which is pressed down by a spring S. In proximity to this cylinder
we provide another C2 which we call the screw cylinder, the piston P2 of which
may be moved by means of the screw A.
These two cylinders are mounted together on any convenient stationary portion
of the engine and are connected by means of the tap T.
From the spring cylinder a pipe D is led to a running joint H on the shaft and
from this running joint the pipe E Figs. 1 & 2 to the cylinder C³ Fig. 2 which is
mounted on the fixed portion of the governor that is to say the disc or fly-wheel
upon which the moving parts of the governor are mounted. The cylinder C³ is
fitted with a piston P3 which is suitably connected by means of the link L to the
governor weight W or other moving part. The system of cylinders and pipes is
filled with oil or other suitable fluid. If now the piston P2 of the screw cylinder
be advanced more oil will be forced into the spring cylinder C¹ so pressing the
spring back and causing it to exert an increased pressure. This increased pressure
will be transmitted by the oil to the moving parts of the governor so assisting its
main springs and causing it to govern at an increased speed. Withdrawing the
piston P2 of the screw cylinder will produce a reverse effect.
When it is desired to introduce oil into the system the tap T is closed, the screw
piston P² is withdrawn to its uppermost position, the oil cock F is opened and the
cylinder filled with oil. The oil cock is then closed the piston is then screwed
down on to the oil and the tap T re-opened. By this means it is obvious that oil
may be introduced at any time to replace any lost by leakage, without stopping the
engine and without affecting the adjustment of the governor.
In order to draw off any oil which may leak to the upper surface of the piston P¹
the small cock G is provided.
An obvious modification would be to have two cylinders as C³ with their
necessary connecting pipes and pistons arranged to operate simultaneously the two
governor weights instead of one only.
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 adjusting gear constructed substantially as described and shown in the
accompanying drawings.
2. The tap T connecting the two cylinders C₁ and C² as and for the purpose
described.
Dated this 2nd day of August 1895.
JOHN HUGHES.
CLAUDE WILLIAM HILL.