IMPROVEMENTS IN GOVERNERS
Year: 1886

page_text: We, WILLIAM CHARLES LOCKWOOD, 453 Intake Road, Sheffield, in the county
of York, Engineer, and HENRY CARLISLE No 1 Albany Road, Sheffield in the
county of York, Engineer, do hereby declare the nature of our invention' for
IMPROVEMENTS IN GOVERNERS and in what manner the same is to be performed,
to be particularly described and ascertained in and by the following statement:-
It consists essentially, of the combination of a pump, air vessel and a selfacting
controlling valve. And in order that the same may be clearly understood, we shall
now proceed to more particularly describe the same, and shall refer to the annexed
sheet of drawings and the figures of reference upon it. Figures 1. 2. and 3 are
sectional elevations of the pump, air vessel, and the selfacting controlling valve
respectively. Refer to figure 1 and A is a pipe which conducts water to the tank B.
The pump at work causes the water to pass through the inlet valve 'C. The lift
of the valve C. may be varied by the adjustable stop D. thus regulating at pleasure
the quantity of water passing by ram E. This ram E is connected by any means
directly or indirectly to any part of the engine or machinery to be governed,
always provided that the connection shall cause the speed of the pump to vary
exactly with or in proportion to the varying speed of the engine or machinery to be
governed, thus, pumping a varying quantity of water through the outlet valve F
along the pipe G and into the air vessel Fig. 2. The object of the air vessel is to
equalize the pressure of the water in, and prevent any pulsation along pipe H.
being caused by the intermittent discharge of water from the pump. The liquid
is forced from the air vessel and passes along pipe H and into the selfacting con-
trolling valve Fig. 3. I is the piston of the aforesaid valve, which is caused to
move in one direction by the pressure of liquid forced upon it, and is caused to
move in an opposite direction by means of the spring J or its equivalent. One end
of the moving piston rod I is directly or indirectly attached to the throttle valve of
the steam engine to be governed, or its equivalent in the case of any other
machine. K Top guide and stop bracket. L Adjustable stop to limit motion of
piston I. M Connecting pillars. N Locknuts regulating amount of compression,
or force, in spring J. Ŏ Gland. P. Lining round piston I being perforated at its
lower extremity by any required number of holes Q Annular space round about
the aforesaid perforations. R. Discharge pipe which may be carried back to tank B
or otherwise.

page_text: :
The action by which this combination becomes a governor, is as follows. The
inlet valve C Fig. 1 and the selfacting controlling valve R Fig. 3 are so adjusted,
each with reference to the other, so that, at any given speed of the engine or
machine to be governed, in a given time, whatever quantity of water is allowed to
pass through inlet valve C and be forced by the pump, through outlet valve F,
along pipe G, through air vessel Fig. 2, along the pipe H, and into the selfacting
controlling valve Fig. 3, may pass through the perforations in the lining P. which
are not closed by the piston I, without any movement of the aforesaid piston.
Should the speed of the engine increase, the quantity of water passing from the
pump to the controlling valve would also be increased, thus causing a corre-
sponding increase of pressure upon the piston I. resulting in the movement of the
piston I and uncovering a sufficient number of the perforations in the lining P to
allow the increased volume of water to be discharged through the pipe R. Simul-
taneously, the end of the piston rod which is attached to the throttle valve or its
equivalent, by its movement would have partially or completely closed the aforesaid
throttle valve. Should the speed of the engine decrease, thus causing a corre-
sponding decrease in the quantity of water pumped in the given time, together with
a corresponding decrease of pressure upon the piston I, the force of the spring J
would move the aforesaid piston, thus closing all or part of the perforations in the
lining P, and simultaneously opening wider the throttle valve or its equivalent.
It will be noticed that the speed of the engine may be varied at pleasure by raising
or lowering the stop D, thus allowing a greater or lesser quantity of water to pass
through inlet valve C in a given time The herein before mentioned pump may
be either double,, or single acting, and either vertical, horizontal or inclined.
And the pump, air vessel and selfacting controlling valve, may be either attached
to each other or seperate, and each part may be placed and work in any convenient
position and every part of this invention may be made of any kind of material
'adaptable.
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,
Firstly. The herein described combination of any pump, air vessel, and self-
acting controlling valve, the said pump forcing a varying quantity of water,
varying either per stroke or. in a given time, through an air vessel and a selfacting
controlling valve which valve has a piston, actuated by the pressure of the liquid
and the force of a spring or its equivalent, the movement of which piston or its
equivalent directly or indirectly controls the throttle valve of the steam engine or
its equivalent, in the case of other machines.
1. Secondly. The method and mechanism for governing steam engines or other
machinery, substantially as herein described, no claim being made for any one
part taken seperately or used for any other purpose, but only when combined
with the other or equivalent parts, substantially as and for the purposes herein
described.
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