Improvements in Water Gauge Frames and Taps.
Year: 1893

page_text: Date of Application, 16th Nov., 1893
Complete Specification Left, 7th Aug.,. 1894-Accepted, 10th Nov., 1894
PROVISIONAL SPECIFICATION.
Improvements in Water Gauge Frames and Taps.
JOHN CARLOS CALASTREME Engineer of 60 Tytherton Road Tufnell Park
London N. do hereby declare the nature of this invention to be as follows:-
My invention has for its object improvements in water gauge frames & taps,
particularly such which are set up and kept tight by pressure, either of steam,
water, gases, or any other known material in a fluid or gaseous state.
The methods at present in use only allow of pressure behind the plug through or
by means of the cored, or bored out passage in the said plug, and which is only
open to pressure of boiler or vessel when turned on, i.e. the plug or plugs is only
held tight by the pressure when the orifices are in line, but when the tap or plugs
is turned shutting off the steam, water, etc. then the pressure is also withdrawn
from the back of the plug, and leakage ensues.
In that respect my invention consists in providing an independant branch hole,
from the main passage, which leads behind the plug, and is independant of the hole
through the said plug, and which provides for pressure on the plug end in any
position, whether the tap or plugs be open or shut."
I also where the water gauge glass is held in position by steam, or other fluid
pressure only, and when such steam or other pressure is withdrawn, the fluid or
water will leak at times through the bottom washer. Now to obviate this I put
in a spiral or circular spring, between the top of glass and any convenient abutment
for the purpose of keeping the glass firmly down, when the pressure from the boiler
is removed, so as to prevent the glass being moved by anyone when cleaning same
and thus prevent leakage.
16th day of November 1893.
JOHN CARLOS CALASTREMÉ.
COMPLETE SPECIFICATION.
Improvements in Water Gauge Frames and Taps.
JOHN CARLOS CALASTREME Engineer of 60 Tytherton Road Tufnell Park
London N. in the County of Middlesex 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 has for its object to dispense with the use of nuts & glands on
gauge frames and trial taps as ordinarily employed and to simplify them.
Figs. 1 to 8 are drawings of gauge frames & trial taps on this principle.
Fig. 1, is a section of the upper part of gauge frame as shewn in Figs. 2 & 3.
Fig. 2, is a front end view of complete gange frame.
Fig. 3, is a side view of same being partly sectional.
Fig. 4, is a section of plug belonging to same.
Fig. 5, is a plan section of plug at holes showing the old system.
Fig. 6, is a part section of Fig. 1 at right angles.
Fig. 7, is a side view of trial tap.
Fig. 8, is a sectional plan at right angles of Fig. 7.
In carrying my invention into practical effect I employ an independent passage
as shewn in Figs. 1 & 8 at A, leading from the main passage P, either obliquely
as shewn or at any other angle or, any convenient form, or by conducting behind

page_text: and through the back of nut N. so that whether the plug L be closed or not, the
pressure behind is always acting to keep it tight. By this arrangement I avoid
leakage, which takes place in all previous arrangements constructed with the single
hole through plug, when the plug is closed and the pressure off the end. I further
avoid the necessity of putting a hole at right angles into the other hole, as shewn
in Fig. 5 at C to keep the pressure on, which said hole C acts prejudicially in
grooving the plug and so often furring up.
Should the area of the plug end L operated on be too great, or the pressure be
in excess so as to cause the handle to work stiffly, I obviate this by putting a small
spindle on the plug at A, in Fig. 4, which takes a bearing in the nut N, and is
kept steam or fluid tight by means of a coned washer B of india rubber, vulcanite,
or any other suitable material, which said coned washer B being so constructed
prevents the pressure from getting behind spindle A, and by this means I reduce
the area acted on by such pressure substantially as shewn and described.
I furthermore if needful employ a spring C (spiral preferably) which presses
down on the top of gauge glass D to hold it in its place when the steam or other
pressure is off substantially as shewn in Figs. 6 & 3.at C.
Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is.
1st. The use of an independent passage A behind the plug. L, Figs. 1 & 8, for
keeping a constant pressure on the end whichever way the plug L be turned, & for
other purposes as hereinbefore described, & substantially as shewn in the accom-
panying sheets of diagrams.
2nd. The use of a spindle A on end of plug L, Fig. 4, fitting into the back
nut N, with suitable washer B on spindle A for the purpose of keeping them steam
or fluid tight, and reducing the area of surface acted upon by pressure, as
herein before described, & substantially as shewn in the accompanying sheets of
diagrams.
3rd. The use of a spiral or any other suitable spring or springs C, acting on the
top of gauge glass D in the manner hereinbefore described, & substantially as
shewn in the accompanying sheets of diagrams, or any mere modifications of the
same.
Dated 16th August 180.1
JOHN CARLOS CALASTREME.