An Improved Water Level Indicator for Boilers, Tanks, Cisterns, or Reservoirs.
Year: 1891

page_text: Date of Application, 15th June, 1891
Complete Specification Left, 25th Feb., 1892-Accepted, 26th Mar., 1892
PROVISIONAL SPECIFICATION.
An Improved Water Level Indicator for Boilers, Tanks, Cisterns, or
Reservoirs.
GEORGE NEWELL MILWARD, 4 Cavendish Road, Dudley Road, Birmingham,
Traveller do hereby declare the nature of this invention to be as follows:-
In fixing or attaching one end of each of two tubes or pipes of any metal or
material of any size and form into the supply pipe leading to, or connected with
any boiler, tank cistern or reservoir, and by fixing or attaching between each of
the other two ends of the said two tubes or pipes, an indicating chamber of glass
or any other transparent material, of any form or design, having inside the said
chamber a coloured ball or block that will float on the surface of the water in the
indicating chamber. The indicating chamber to be fitted at bottom and top, with
caps or plates of any metal or material, and rendered water-tight by placing between
the glass chamber and top and bottom caps or plates a suitable washer of any soft
material and securing the whole by bolts or screws fixed to the top cap or plate and
screwed by nuts or otherwise to the bottom cap or plate of indicating chamber.
Also that a small tap or cock be fixed to top cap or plate of indicating chamber so
that if necessary any air may escape from the indicating chamber when filling a
boiler, tank cistern or reservoir and thus allow the ball or block to rise as the
water flows into indicating chamber.
It will be understood that the said two tubes or pipes may be fixed in any form,
either parallel or otherwise-or the top tube or pipe may cross the lower pipe and
be attached or connected to or with the lower cap or plate of indicating chamber
and the lower tube or pipe may cross the upper tube or pipe and be attached or
connected to or with the top cap or plate of the top part of indicating chamber.
The objects of this invention is as follows:-That in the event of the supply
pipe being stopped-up or the supply of water being stopped by frost or other causes
and does not feed a boiler, tank, cistern or reservoir the ball or block in indicating
chamber will fall or drop as the water lowers in the indicating chamber-thus
giving a timely indication of the fact.
Dated this 19th day of Juns 1001
GEO. N. MILWARD.
COMPLETE SPECIFICATION.
An Improved Water Level Indicator for Boilers, Tanks, Cisterns, or
Reservoirs.
I GEORGE NEWELL MILWARD, late of 4 Cavendish Road, Dudley Road,
Birmingham, and now of Antrobus Road, Handsworth, in the County of Stafford,
Traveller, 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 :-
This invention relates to an improved water level indicator for boilers, tanks,
cisterns or reservoirs, and its object is to provide in connection with the supply
pipe, a chamber, within which is a floating ball or block, which, when the tank and
supply pipes are full, will float at the upper end of the said chamber, but will fall
or drop, as the water in the supply pipe lowers, through failure of supply or other
impediment, and thus give timely warning of that fact.
In order to more clearly explain this my said invention and in what manner it.
.

page_text: may be carried out I have hereunto appended an illustrative sheet of drawing,
upon which are figures and letters of reference and in which :-
Fig. 1, is a general view.of this my invention shewing the pipes &c. as full of
water (that is, in safe working order).
Fig. 2, is a sectional plan on line 1-1.
A, is the supply pipe, which is carried from its lower end to the boiler or tank.
B, B', are two tubes connected to the pipe A, and capable of being shut off there-
from by means of the taps C and C. D, D', are discs or end connecting plates,
between which is the transparent glass hollow cylinder E. In these ends D, D',
are circular grooves F, into which is pressed cement, white lead, or other suitable
substance for making a joint. Into this substance the glass cylinder E, is embedded,
when the two discs D, D', are bolted together by bolts G, the floating ball H,
having been first inserted. I, is an air &c. escape tap.
Its action is as follows: Under ordinary circumstances a constant supply of
water passes down the pipe A, to the boiler in the direction of the arrow (boiler
not shown), and in so doing passes, through the pipes B, B', into the glass
cylinder E. This latter being now filled with water, the floating ball H, rises to,
and remains at the top as long as the water remains. In case however, the supply
pipes leading to this apparatus become choked or otherwise impaired and the supply
stopped, as the water in the boiler &c., is used and thereby the water in the
cylinder E, is lowered, so the ball will fall to the hottom, thus give a timely
warning of that fact.
By means of the pipes B, B', the cylinder E, is located in an exposed position in
a room where it may be readily and frequently seen, such pipes leading therefrom
to the supply pipe A, wherever it may be located.
The function of the tap I, is, to permit the escape of air when first filling the
cylinder E.
Having now particularly described and ascertained the nature of this my said
invention, and in what manner the same is to be performed, I declare that what I
claim is :-
The combination with a boiler, tank, cistern or reservoir of the indicating
chamber having therein the floating ball, constructed and operating as described
& illustrated and for the purposes specified.
Dated this 24th day of February 1892.
CHARLES T. POWELL,
12, Cherry Street, Birmingham, Applicants Agent.