Improvements in Mechanism for Regulating the Supply of Gas or other Fluid to Gas or similar Engines.
Year: 1888

page_text: Date of Application, 19th July, 1888
Complete Specification Left, 18th Apr., 1889
Complete Specification Accepted, 1st June, 1889
Improvements in Mechanism for Regulating the Supply of Gas or
other Fluid to Gas or similar Engines.
I HUGH WILLIAMS of The Mount Stockport in the County of Chester Engineer
do hereby declare the nature of this Invention to be as follows:-
My invention relates to that arrangement of mechanism for regulating the supply
of gas or other fluid to motor engines in which the slide admission valve is opened by
a finger connected to the governor and mounted on a vibrating lever operated from
an eccentric on the crankshaft.
In such an arrangement when the engine has considerably exceeded its normal
speed the governor acts to withdraw the finger so as to leave the slide valve closed
say for one stroke whereby no gas or other fluid is admitted until the governor
moves the finger back into position to again actuate the slide valve.
Now, the object of my improvements is to render the governing mechanism more
sensitive in its action so that it will admit more or less gas or fluid as required
instead of either admitting a full charge or else entirely shutting off the admission
of gas or fluid.
To accomplish this object 1 dispense with the usual straight plate or projecting
portion of the slide valve which ordinarily constitutes the striking surface for the
finger and instead I form an inclined surface with a number of ratchet teeth cut
upon it into one of which the finger enters to move and open the valve and according
as the position of the finger is varied by the governor and the finger engages a tooth
either nearer to or farther from the foot of the incline so does the traverse of the
slide valve vary to admit more or less gas or other fluid to the engine as required.
Dated this 18th day of July 1888.
H. B. BARLOW,
Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in Mechanism for Regulating the Supply of Gas or
other Fluid to Gas or similar Engines.
I, HUGH WILLIAMS, of The Mount, Stockport in the County of Chester,
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 :-
My invention relates to that arrangement of mechanism for regulating the supply
of gas or other fluid to motor engines in which the slide admission valve is opened
by a finger connected to the governor and mounted on a vibrating lever operated
from an eccentric on the crank shaft.
In such an arrangement when the engine has considerably exceeded its normal
speed the governor acts to withdraw the finger so as to leave the slide valve closed
say for one stroke whereby no gas or other fluid is admitted until the governor
moves the finger back into position to again actuate the slide valve.
Now, the object of my improvements is to render the governing mechanism more
sensitive in its action so that it will admit more or less gas or fluid as required
instead of either admitting a full charge or else. entirely shutting off the admission
of gas or fluid.
To accomplish this object dispense with the usual straight plate or projecting
portion of the slide valve which ordinarily constitutes the striking surface for the
finger and instead I form an inclined surface with a number of ratchet teeth cut
upon it into one of which the finger enters to move and open the valve and
according as the position of the finger is varied by the governor and the finger
engages a tooth either nearer to or farther from the foot of the incline so does the
traverse of the slide valve vary to admit more or less gas or other fluid to the engine
as required.
And in order that my invention may be fully understood and readily carried into
effect I will describe the accompanying Sheet of Drawings reference being bad to
the figures and letters marked thereon.
In this view a designates the vibrating lever which is fulcrumed at a¹ and is
connected to a rod 6 which is operated by an eccentric on the crank shaft not
shown; c is the finger which is mounted on the vibrating lever a and connected
by a rod d to a lever e which is operated by the governor not shown so as to
vary the
position of the finger c.according to the speed of the engine; f is a weight or
counter-poise which always tends to draw back the finger c in the opposite direction
to that indicated by the arrow: g is the inclined striking surface with ratchet teeth
cut upon it which I. employ according to my present invention and h is the slide
admission valve.
When the speed of the engine increases beyond its normal rate the governor
acting through the rods d and e draws the finger c in the direction indicated by the

page_text: arrow and into the position indicated by dotted lines or more or less so that the
finger c acts upon one or other of the ratchet teeth on the striking plate g and opens
the valve h less fully until the engine regains its normal speed and the weight facts
to draw back the finger c into the position shown in full lines whereby the valve h
is fully opened as the rod 6 locks the lever a.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
The combination with a vibrating lever and a finger mounted thereon and
connected to the governor, of a toothed inclined striking plate or surface formed
with or fixed to the slide admission valve of a gas or similar engine substantially as
and for the purposes herein described with reference to the accompanying Drawing.
Dated this 17th day of April 1889.
H. B. BARLOW,
17, St. Ann's Square, Manchester,
Agent.