Improvements in Water Gauges for Steam Boilers and the like.
Year: 1892

page_text: Date of Application, 27th Apr., 1892
Complete Specification Left, 27th Jan., 1893-Accepted 27th Apr., 1893
PROVISIONAL SPECIFICATION.
Improvements in Water Gauges for Steam Boilers and the like.
I, GUILLERMO ANTONIO FARINI of Dartmouth Lodge Perry Vale, Forest
Hill in the County of Surrey Gentleman do hereby declare the nature of this
invention to be as follows :-
My invention relates to certain improvements in water gauges or visible level
indicators for steam boilers and the like, and has for its objects the construction of
a gauge or indicator that will withstand considerable pressure, and also changes of
temperature without rupture, and further the provision of a ready means for
replacement in case of fracture.
In carrying my invention into effect I employ a tube or other vessel connected to
the boiler or the like in such a manner that one end is open to the steam or gas
pressure and the other end to the water or fluid pressure, thus maintaining a liquid
level in said tube or vessel corresponding to that of the boiler or the like. In order
to render said level visible I provide the said tube or vessel with a series of holes,
preferably bored to leave an internal shoulder or projecting ridge, and internally
screwed to fit a gland or bored_nut. A disc or plate of mica of suitable thick-
ness and consistence to withstand the required pressure is inserted in each hole,
and is pressed down upon the shoulder or ridge by means of the gland or nut,
an interposed washer of asbestos or other suitable material being employed to
prevent fracture of the mica in tightening the nut, and also to perfectly secure
the joint to resist pressure, and such washer or cushion may be placed on both sides
of the mica disc.
I preferably arrange the holes fitted as hereinbefore described, in such a manner
that the liquid level of the contents of the tube or vessel is always visible from the
exterior of the said tube or vessel.
Dated this 26th day of April 1902.
FREDK. WALKER,
11, Furnival Street, Holborn, London, E.C.,
Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Water Gauges for Steam Boilers and the like.
I, GUILLERMO ANTONIO FARINI of Dartmouth Lodge Forest Hill, in the
County of Surrey Gentleman 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 certain improvements in water gauges or visible level
indicators for steam boilers or the like, and has for its objects the construction of
a gauge or indicator which will withstand considerable pressure, and also changes
of temperature without rupture, and further, the provision of ready means for
replacement in case of fracture.
In order that my invention may be the better understood, I have appended the
accompanying sheet of drawings in which
Figure 1 represents an elevation of the device, partly in section, and Figure 2 a
plan view thereof.
In carrying my invention into effect, I attach to a boiler or like vessel a tube or
hollow vessel A, Figures 1 and 2, so that one end thereof is open to the steam or
gaseous pressure and the other to the fluid pressure. Holes are pierced in said tube
[Price 8d.1

page_text: or vessel so as to present a clear sight through each, said holes being arranged
alternatively at a right angle or any other suitable angle to the first in the series.
Said holes are recessed, furnished with a screw thread internally, and so shaped
that an abutting shoulder c is formed. A gland, or open nut a is externally
screwed to coincide with the internal thread of the recessed hole before mentioned,
and a disc or series of discs, or diaphragms of mica, talc, or other transparent or
semi transparent material is interposed between the gland a and the shoulders c,
suitable asbestos or other like packing being placed between the surfaces before
finally screwing said gland a into place so as to prevent leakage. The holes and
the glands holding the transparent diaphragms before referred to, are preferably
placed at right angles, in alternative, vertical position, but any other angle or
angles may be chosen, so that the liquid or fluid level may be clearly seen from any
convenient point of view. The gland, or equivalent a, securely holds the trans-
parent or semi transparent medium b in position, and in order to sustain a great
pressure may supplement the means for attachment as described and shewn, by
using one or more cross bars, or a metallic grid, the breadth of which is not
sufficient to obscure the visible fluid level. The fluid and gaseous pressure within
the interior B of the tube or vessel A approximates to that of the vessel or
boiler to which it is fixed, and the liquid or fluid level may be ascertained by a
glance, since the sight holes are opposite. My invention is especially applicable
in cases where the pressure and high temperature of the gas and fluid preclude the
use of an ordinary gauge glass and its auxiliary fittings.
I may, however, employ any number of said sight holes, at any angle in sequence,
and may use any heat resisting and pressure resisting diaphragm that is sufficiently
transparent for the purpose of the invention as herein before described.
Having now particularly described and ascertained the nature of my said inven-
tion, and the manner in which the same is to be performed, I declare that what I
claim is ;-
. First. In a water gauge or fluid level indicator, the combination of a central tube
or vessel A, internally bored as at B, with a transparent or semi transparent
diaphragm b, held in position by a gland a substantially.
Second. In a water gauge or fluid level indicator as referred to in the preceding
claim, the arrangement of said transparent or semi-transparent diaphragms opposite
to each other and in vertical alternation at any suitable angle.
Dated this 16th day of January 1893.
G. A. FARINI.