IMPROVEMENTS IN GOVERNORS FOR GAS ENGINES STEAM ENGINES AND COMPRESSED AIR ENGINES
Year: 1885

page_text: аци бошріскеu an зв.
I CHARLES WILLIAM PINKNEY of No 5 Regent Street Smethwick in the
County of Stafford Mechanical Engineer do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN GOVERNORS FOR GAS ENGINES STEAM ENGINES
AND COMPRESSED AIR ENGINES" to be as follows:—
My invention consists in constructing governors for regulating the speed of gas
engines steam engines and compressed air engines in the manner hereinafter
explained whereby the regulation of the speed of the engine is effected by
mechanisin much simpler than that ordinarily employed.
I will describe my invention in connection with a horizontal gas engine.
On the horizontal valve rod of the ignition valve I fix a bracket carrying a pin
on which a lever turns. The short arm of the said lever which short arın is turned
towards the ignition valve is pressed upwards by a light spring. The other or
longer arm of the said lever consequently is pressed downwards. The said longer
arm carries on its underside an incline capable of adjustment. The valve rod
travelling backwards and forwards carries the said lever with it and when the
engine is working at its normal speed each time the said rod moves from the
ignition valve the incline on the underside of the long arm of the lever comes
against a roller working on a fixed axis and the incline travelling over the roller
raises the long arm of the lever to a horizontal position in which position it is
maintained during the completion of the stroke of the ignition valve rod. This is
effected by the lower end of the incline terminating in a horizontal surface. When
the long arm of the lever is in the position last described its free end is situated
just below the level of the top of the vertical lever which operates the gas valve
and on the motion of the ignition valve rod the free end of the long arin of the
lever presses upon the gas valve lever and opens the gas valve. When however
the engine acquires a speed higher than the arranged normal speed the incline
travels so fast over the roller that the end of the free arm of the lever is thrown
higher than its normal position and passing over the top of the gas valve lever the
gas valve is not operated upon and the speed of the engine slackens. The
diminished speed of the engine causes the slower passage of the incline over

page_text: the roller and the free end of the lever not being thrown higher than the top of
the gas valve lever acts on the said lever and maintains the working of the
engine.
Although I have described my invention in its application to a horizontal gas
engine yet my said invention is equally applicable to vertical gas engines as well
as to horizontal and vertical steam engines and compressed air engines.
Dated this twenty eighth day of January 1885.
Improvements in Governors for Gas Engines, Steam Engines,
and Compressed Air Engines.
I CHARLES WILLIAM PINKNEY of N° 5 Regent Street Smethwick in the County
of Stafford Mechanical Engineer do hereby declare the nature of my Invention
for "IMPROVEMENTS IN GOVERNORS FOR GAS ENGINES, STEAM ENGINES AND COM-
PRESSED AIR ENGINES" and in what manner the same is to be performed to be
particularly described and ascertained in and by the following stateinent :--
My invention consists in constructing governors for regulating the speed of gas
engines, steam engines and compressed air engines in the manner hereinafter
explained, whereby the regulation of the speed of the engine is effected by
mechanism much simpler than that ordinarily employed.
I will describe my invention in connection with a horizontal gas engine.
On the horizontal valve rod of the ignition valve I fix a bracket carrying a pin
on which a lever turns. The short arm of the said lever, which short arm is turned
towards the ignition valve, is pressed upwards by a light spring. The other or
longer arm of the said lever consequently is pressed downwards. The said longer
arm carries on its underside an incline capable of adjustment. The valve rod
travelling backwards and forwards carries the said lever with it and when the
engine is working at its normal speed, each time the said rod moves from the
ignition valve the incline on the underside of the long arm of the lever comes
against a roller working on a fixed axis and the incline travelling over the roller
raises the long arm of the lever to a horizontal position in which position it is
maintained during the completion of the stroke of the ignition valve rod. This is
effected by the lower end of the incline terminating in a horizontal surface.
When the long arm of the lever is in the position last described, its free end is
situated just below the level of the top of the vertical lever which operates the

page_text: gas valve and on the motion of the ignition valve rod the free end of the long arm
of the lever presses upon the gas valve lever and opens the gas valve. When
however the engine acquires a speed higher than the arranged normal speed, the
incline travels so fast over the roller that the end of the free arm of the lever is
thrown higher than its normal position and passing over the top of the gas valve
lever the gas valve is not operated upon and the speed of the engine slackens.
The diminished speed of the engine causes the slower passage of the incline over
the roller and the free end of the lever not being thrown higher than the top
of the gas valve lever acts on the said lever and maintains the working of the
engine.
The accompanying Drawing represents in side elevation partly in vertical section
a portion of a gas engine to which a governor constructed according to my invention
is applied.
a is the horizontal rod by which the ignition valve of the gas engine situated in
the chamber b is worked and c is the gas admission valve of the engine worked by
the levers e and fand connecting rod g in the manner hereinafter described. On the .
horizontal valve rod a is a bracket h carrying the pin i on which the lever turns
the said leverk being pressed downwards by the spring bolt on the said valve
rod a.
On the lever k is a block m capable of adjustment thereon by the cross pin
at me and on the underside of the said block is an incline n the lower end of which
terminates in the horizontal bearing surface p. The said block m is pressed by the
spring bolt against a roller q working on a fixed axis carried by the support r.
As the valve rod a travels backwards and forwards it carries the lever with it
and when the engine is working at its normal speed, each time the said rod moves
from the ignition valve in the chamber b, or in the direction indicated by the
arrow, the incline n on the block m travels up the roller q and raises the said
lever into the horizontal position represented in which position it is maintained
during the completion of the stroke of the ignition valve rod a by the horizontal
bearing surface of the block working upon the said roller as represented in the
drawing. When the lever is in the position represented in the drawing its free
end is situated just below the level of the top of the vertical lever e, the said
vertical lever being connected through the rod g to the lever f the lower arm of
which operates upon the spindle c² of the gas valve c. As the gas ignition valve
rod a continues its motion in the direction of the arrow after the moving parts have
reached the positions represented in the Drawing, the free end of the lever k presses
upon the lever e and through the rod y and lever f opens the gas valve c.
The gas
valve c is in this way automatically opened at the termination of each stroke of
the gas ignition valve rod a in the direction of the arrow so long as the engine is
working at its normal speed. When however the engine acquires a speed higher
than the arranged normal speed the incline n on the lever block m travels so fast
over the roller Я that the end of the free arm of the said lever k is thrown higher
than the normal position represented in the drawing and hence the said end of the
lever passing over the top of the gas valve lever e the gas valve c is not operated
upon and as no gas is supplied to the engine the speed slackens. The diminished
speed of the engine causes the slower passage of the incline n over the roller q and
the free end of the lever not being thrown higher than the top of the gas valve
lever e acts on the said lever in the manner already described and readmitting gas
through the valve c maintains the working of the engine.
Although I have described and represented my invention in its application to a
horizontal gas engine yet my said invention is equally applicable to vertical gas
engines as well as to horizontal and vertical steam engines and compressed air
engines.
In applying my invention to a steam engine or compressed air engine the parts
are arranged essentially in the manner hereinbefore described and represented with
iespect to a gas engine, the bracket h on the rod a of the ignition valve being in
the case of a steam or compressed air engine fixed on the rod of the slide valve
and the lever fade to operate upon the throttle valve.

page_text: Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that I claim
as my invention
q
First. The construction and combination of the parts of governors for gas
engines hereinbefore described and illustrated in the accompanying Drawing, that
is to say, supporting on the reciprocating rod a of the gas ignition valve of the
engine the lever / provided with an adjustable block m, m², n, p having an incline
on its underside the said lever and block being used in combination with a roller
and the gas valve connected levers e and f, the motion of the ignition valve rod
lever k automatically opening the admission gas valve at the proper times when
the engine is working at its arranged normal speed and automatically cutting off
the supply of gas when the engine acquires a speed higher than the normal speed
substantially as described and illustrated.
Secondly. The adaptation of the governor claimed in the first claim to steam
engines and compressed air engines as herein before described.
Datad this Twenty sighth day of Santamber 1885
CHARLES WILLIAM PINKNEY.