Improved Pressure Gauge for use in Mines and other Places.
Year: 1889

page_text: Date of Application, 9th May, 1889
Complete Specification Left, 27th Dec., 1889-Accepted, 22nd Feb.,
1890
PROVISIONAL SPECIFICATION.
Improved Pressure Gauge for use in Mines and other Places.
We THOMAS BURGESS WINTER of 21 Grey Street Newcastle-upon-Tyne Optician
and CHARLES WINTER of 21 Grey Street Newcastle-upon-Tyne Optician do hereby
declare the nature of this invention to be as follows:-
The object of this invention is to render the reading and registration of aerostatic
pressures in mines and other places more easy and accurate by means of a water
gauge We accomplish this in the following manner-There are two vertical
cylinders placed alongside of each other and fixed on a suitable bracket or stand
communicating with each other by means of a pipe at their lower extremities. One
of these cylinders is closed to the ordinary atmospheric pressure at the top and to
the top of this cylinder there is a suitable flexible elastic or other tube led to the
current or volumn of air whose pressure is to be determined or registered. At the top
of one of these cylinders there may be a hole or aperture having a plug if required
through which the cylinders are charged or partly filled with water oil or other
suitable fluid. In the second cylinder there is a float of any suitable kind as a hollow
metallic vessel or otherwise Attached to this float there is a vertical rod leadınd
So that as the
upwards, at or near the top of this rod there is a pointer pencil or pen
pressure in the first named cylinder from the air current or other volumn of air whose
varying pressure above or below the atmospheric pressure is to be indicated or
registered increases or diminishes it causes the two columns of water in the two
cylinders to vary in relative vertical height thereby causing a corresponding rise or
fall of the float in the second cylinder. The rod and pointer attached to which will
indicate on a suitable scale or index the varying pressures of the air current or volumn
to be indicated. This arrangement when required may be also self registering-in this
way. There may be a suitable revolving cylinder above or near to the two water or
fluid cylinders This cylinder may be arranged to rotate or revolve at any required
speed by clockwork or other suitable mechanism. On this cylinder there is fixed
paper or other material properly lined and marked to any scale so that as the cylinder
slowly revolves the varying pressures indicated above or below the ordinary atmospheric
pressures are marked on it by the pointer pencil or pen at the top of the rod on the
Hoat There may be a balance weight led from the top of the rod and carried by a
When
flexible cord or chain over a suitable pulley so as to partly balance the float.
the gauge is to be self registering the rod may be somewhat elastic and may pass
through or between one or more pairs of small grooved sheaves so as to cause some
slight pressure on the revolving cylinder by the pencil &c. at the same time doing this
with very little friction. These sheaves are fixed in a cap or cover on the top of the
float cylinder and being a somewhat tight fit in the cylinder may be moved round
and thus give any required amount of pressure on the registering paper on the
revolving cylinder, from the pencil. In this case the pencil may be on an elastic arm
attached to the top of the rod from the float. The amount of pressure may be regulated
by an adjustable screw preventing the pressure from the pencil &c being too great on
the revolving cylinder. A small cock may be placed at the lower end of one of the
vertical cylinders so as to regulate the quantity of fluid in the cylinders and so bring.
the pen or pencil to zero in each case on the registering paper. Or the scale, index or
registering paper may be adjustable to whatever level of water there may be. The
various parts may be of any suitable material or shape.
Dated this 7th day of May 1889.

page_text: COMPLETE SPECIFICATION.
Improved Pressure Gauge for use in Mines and other Places.
We THOMAS BURGESS WINTER of 21 Grey Street Newcastle-upon-Tyne Optician
and CHARLES WINTER of 21 Grey Street Newcastle-upon-Tyne Optician 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
--
One of
The object of this invention is to render the reading and registration of Aerostatic
Pressures in Mines and other places more easy and accurate by means of a pressure
gauge. We accomplish this in the following manner-There are two vertical cylinders
placed alongside of each other and fixed on a suitable bracket or stand and communi-
cating with each other by means of a pipe at or near their lower extremities
those cylinders is closed to the atmospheric pressure At the top of this cylinder there
is a suitable flexible elastic or other tube lod to the current or volumn of air or other
gas whose pressure is to be determined or registered. At or near the top of one of
these cylinders or in other suitable place there may be a hole or aperture having a plug
or cock and funnel if required through which the cylinders are charged or partly filled
and replenished with water, oil or other suitable fluid In the second cylinder there
1s a float of any suitable kind as a hollow metallic vessel or other suitable float.
Attached to this float there is a vertical rod leading upwards through suitable guides.
At or near the top of this rod there is a pointer pencil or pen. So that as the pressure
in the first named cylinder from the air current or other volumn of air whose varying
pressure above or below the atmospheric pressure is to be indicated or registered
increases or diminishes causes the two columns of water in the two cylinders to vary
in relative vertical height thereby causing a corresponding rise or fall of the float on
the second cylinder there being a communicating pipe between the two cylinders.
The rod and pointer or pen attached to the float will thus indicate or register on a
suitable scale or index the varying relative pressures of the air currents or volumns This
arrangement when required may be also self registering in this way. There may be a
suitable revolving cylinder above or near the two water or fluid cylinders This
registering cylinder may be arranged to rotate or revolve at any required speed by
clockwork or other mechanism affixed thereon. On this registering cylinder there is
fixed paper or sheets of other suitable material properly lined and marked to any scale.
So that as the cylinder slowly revolves the varying pressures indicated above or below
the ordinary atmospheric pressure are marked on it by the pointer pencil or pen on
the top of the rod on the float. There may be a balance weight led from the top of
the rod and carried by a flexible cord or chain over a suitable pulley so as to partly
balance the float. When the gauge 18-to be self-resistering-or otherwise the rod may
pass through or between one or more pairs of small grooved sheaves so as to cause the
movement of the rod to be perfectly vertical at the same time doing this with a
minimum amount of friction and obviating the use of a stuffing box. These guide
sheaves are fixed in a cap or cover on the top of the second or float cylinder. Which
cap being a somewhat tight fit in the cylinder may be moved round and thus giving
any required amount of pressure on the registering paper on the revolving cylinder
from the pencil &c. The pencil may be on an elastic arm attached horizontally
vertically or in any other way to the top of the rod from the float. The amount of
pressure on the paper may also be regulated or determined by an adjustable screw
and stop piece preventing the pressure from the pencil or pen being too great. The
vertical rod from float may be square recangular or other suitable section. A small
cock may be placed at the lower end of one of the vertical cylinders or on the
connecting pipe so as to regulate the quantity of fluid in the cylinders and so bring
the pen or pencil to zero in each case on the registering paper. Or the zero on the
scale, index, or registering paper may be adjustable to whatever level of fluid there
may be in the cylinders. This cock may also be used to drain the cylinders.
The various parts may be of any suitable material or shape.

page_text: In the drawings corresponding to the foregoing description of our invention
Fig. 1 is a plan of the whole.
Fig. 2 is a front elevation of the same and Fig. 3 is an elevation of the guides for float
rod in which a is the vertical pressure or air-tight cylinder containing the fluid, and
receiving the pressure from any distance through pipe and cock g. c is the air-tight
cap fixed on this cylinder having upon it the cock and funnel through which the
cylinders are supplied and replenished
bis the second or float cylinder which is open to the ordinary or atmospheric
pressure, communicating with cylinder a by means of the connecting pipe e, and
f is the drain or regulating cock on pipe leading from connecting pipe e from
cylinders a and b.
his the float in cylinder b.
i is the vertical rod from float passing upwards through cap d and between roller
guides k and having on its upper part an elastic arm 1 for the pen r.
is the adjusting screw attached to cap d having a stop piece t attached to the
bracket u. m is the revolving cylinder moving on the fixed spindle n.
The whole being of required enclosed in a suitable case or frame which is not shewn
in the drawings.
Having now particularly ascertained and described the nature of our said Invention
and in what manner the same is to be performed we declare that what we claim is
1st The method of guiding the float rod.
2nd. The whole arrangement as described for a self registering pressure gauge.
3rd. The whole arrangement as described without the self registering apparatus for
a pressure gauge.
Signed
on behalf of the applicants,
THOMAS BURGESS WINTER
and
CHARLES WINTER.
J. A. G. Ross,
Newcastle-upon-Tyne, Patent Agent.