Improvements in Inferential Liquid Meters for Measuring the Flow of Water in Pipes.
Year: 1888

page_text: Date of Application, 28th Feb., 1888
Complete Specification Left, 28th Nov., 1888
Complete Specification Accepted, 31st Dec., 1888
Improvements in Inferential Liquid Meters for Measuring the
Flow of Water in Pipes.
NICHOLAS JOHN GINMAN Waterworks Superintendent Gibbet Cottage. Gibbet
Street Halifax, in the County of York do hereby declare the nature of this invention
to be as follows:-
The object of my invention is to provide a simple and efficient Waste Water
Meter which can be constructed at a small cost and will not be liable to get
out of order.
For this purpose I use the principle of the ordinary reflux valve, back pressure
valve or check valve as an apparatus for measuring the flow of water or other liquids
in pipes conduits or other watercourses to which is attached a recording apparatus
consisting of a cylinder or drum revolving by means of a clock to which is attached
a paper diagram such as is in use on many of the well known means for taking
diagrams such as from Gas Governors, pressure recorders and Steam Engine
indicators.
The valve door of the apparatus is fixed in such a position that when the flow of
water is at rest the weight of the valve door in all cases will be laying on the
seating of the orifice through the meter thereby closing the water way between
the inlet and outlet of the meter and by so doing will shew on the Diagram that
no water is passing at this particular time.
By these means it will be seen that no water can pass only by pushing open the
door of the valves which in all cases must be lifted off their seats before any water
can pass through the meter to the outlet side and from the valve door is carried an
horizontal shaft working through a stuffing box on the side or top of the reflux or
back pressure or check valve as herein before described and from the end of the shaft
is carried a long link in which works a roller connected to a forked connecting rod
carried in a vertical form of motion through a slide forming a guide for the rod to
work in against the revolving cylinder carrying an adjustable pencil for marking on
the diagram attached to the cylinder and by so doing will shew the areas which the
valve door is open or the space for the water to pass through the meter.
Dated thin 10th don of Bahmuar 1888
NICHOLAS JOHN GINMAN,
Gibbet Cottage,
Gibbet Street, Halifax.

page_text: Fig. 1 is a front elevation of my apparatus with check valve (for measuring the
flow of water), fixed under surface cover.
Fig. 2 is a side elevation in section of Fig. 1, without surface cover.
Fig. 3 is a plan of my check valve apparatus.
Fig. 4 is a front elevation of my apparatus with reflux or back pressure valve.
Fig. 5 is a side elevation of Fig. 4.
Fig. 6 is a section of valve and pipe detached.
Fig. 7 shows quadrant and rack attached to the rod working the tracer.
For this purpose, I employ either the principle of the ordinary reflux valve or back
pressure valve A¹, or check valve A, as an apparatus for measuring the flow of water,
or other liquids in pipes, conduits, or other water courses, to which is attached (within
a suitable case B) a recording apparatus consisting of a cylinder or drum C, revolving
by means of ordinary clock-work within a suitable case D), and driving the cylinder
by shafts D1 and D2, and mitre wheels D4, D5, D6, and D.
To the periphery of the cylinder C is attached a paper diagram E, (such as are in
use in many of the well known contrivances for taking diagrams from gas governors,
pressure recorders, and steam engine indicators) F is the pencil holder working in a
suitable slide G, attached to the spindle H of the valves A or A¹.
The valve A or door A¹, is fixed in such a position, that when the flow of water is
at rest, the weight of the valve or door, whether it be a reflux valve or check valve,
will rest on the seating of the orifice through the meter, thereby closing the
water way between the inlet and outlet of the meter, by so doing, will show
on the diagram (by means of the tracer) that no water is passing at this
particular time.
By the above arrangement, it will be seen that no water can pass except by
pushing open the valves, which in all cases (whether reflux or check valves) must
be lifted off their seats before any water can pass through the meter to the
outlet side.

page_text: From the valve door (in case of reflux valves) is carried a horizontal shaft K,
working through a stuffing box L, on the side or top of the reflux or back
pressure valve, or check valve as hereinbefore described, and from the end of the
aforesaid shaft is carried a long link M, having a slot N, in which works a roller
or anti-friction bowl P, connected to a forked connecting rod R, carried in a vertical
position through a slide G forming a guide for the rod to work in against the
revolving cylinder, the said slide carrying an adjustable pencil for marking on the
diagram attached to the periphery of the cylinder, and by so doing, it indicates
the area the valve door is open, or the space for the water to pass through
the meter.
In lieu of the link M, with slot N, bowl P, and forked connecting rod R, a
quadrant and rack (see Fig. 7) may be employed.
Having now particularly described and ascertained the nature of this inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
.
1. Operating the tracer upon the diagram by means of a check valve, back
pressure or reflux valve, for the purposes shown and described.
2. The combination of the check valve A and spindle H, operating the tracer F,
upon the diagram E, as and for the purposes, substantially as shown and described.
3. The combination of the reflux or back pressure valve A¹, horizontal shaft K,
link M, connecting rod R, operating the tracer F, upon the diagram E as shown
and described.
4. The general arrangement and construction of apparatus as and for the purposes
shown and described.