Year: 1886

page_text: I WALTER ALFRED BARLOW of 6 St Pauls Churchyard in the city of London
Patent Agent and Engineer do hereby declare the nature of this invention
(a communication to me from abroad by Adolphe Donneley Engineer of Hamburg
in the German Empire) and in what manner the same is to be performed, to bo
particularly described and ascertained in and by the following statement:-
:-
This invention relates to an improved construction of water gauge and is
illustrated by the accompanying sheet of drawings; Fig. 1 is an outerside elevation
of water gauge constructed according to this invention and attached to the front
plate R of a boiler, Fig. 2 is a front sectional elevation on line x, x of Fig. 1, and
Fig. 3 is a horizontal section at line p p of Fig. 1.
The gauge glass G is by means of metal heads K, K', attached to the side of a
tube A that is by means of tubular arm A¹ A² secured to the boiler front R.
Arm A¹ communicates with the water and arm A* with the steam of the boiler.
This tube A and its side arms may be of a large diameter to prevent its becoming
blocked by impurities or sediment from the water of the boiler.
The metal heads K K¹ between which the gauge glass is attached by means of
stuffing boxes as commonly in use, are hollow so as to effect communication between
the glass G and the boiler in such way that steam enters through K. and water
through K¹
The inner ends vand v₁ of heads K and K' project somewhat into the hollow
part of tube A and these ends are formed with conical openings that act as seats
for valves and 7 formed upon the front ends of hollow screw spindles & that can
by means of handles h be turned. These screw spindles & are placed in heads E
with stuffing boxes attached to the tube A opposite to heads K K¹.
γ
By closing the openings v, v² by the corresponding valves and r¹, the gauge-
glass G is put out of communication with the boiler. In Fig. 2 the steam inlet is
shown as shut off, whilst the water inlet is open. If both valves and are closed
the gauge glass can be removed or renewed without disturbance from the boiler.
In such closed position the inlet channels of heads K and K¹ can be cleaned after
removing the set screws m and m² of spindles s and and the set screws t and t¹ of
го

page_text: heads K K¹. The heads K K¹ can then be pushed through and cleansed by means
of a wire brush or the like and be cleansed from any impurities or incrustations,
without any molestation to the workman by steam or water of the boiler.
The set screw t² on top of head K allow the gauge glass to be cleansed whilst the
valves and are closed. o, z and z¹ are set screws for cleaning tube A if
required.
The arrangement of the spindles s opposite to heads K K¹ and the attachment.
of the gauge glass by means of these heads sideways to a side tube A communicating
with the boiler as described gives the advantage in case of breakage of a glass G
of closing the steam and water inlets by means of handles without being molested
by escaping steam or water. The wide tube A, that is in all cases between glass G,
and the hand of the operator while closing the valves protects the operator
from being interfered with or damaged.
Having now particularly described and ascertained the nature and particulars
of my said invention and in what matter the same is to be carried into practical
effect I declare that what I claim is :-
A water gauge furnished with valve rvat top and valve r¹ von bottom end of
glass G which valves are arranged in such manner, that the hollow valve spindles s
for opening and closing the valves are placed at the opposite side of a tube A to
which the valve seats are attached by heads K K' and by means of which the glass
communicates with the boiler as and for the purpose herein set forth.
Dated this lith day of April 1886.