Apparatus for Protecting Water-gauge Glasses.
Year: 1896

page_text: Date of Application, 19th Feb.. 1896-Accepted, 2nd May, 1896
COMPLETE SPECIFICATION.
Apparatus for Protecting Water-gauge Glasses.
I, FREDERICK WILLIAM GOLBY, of 36, Chancery Lane, in the County of
Middlesex, Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, as communicated to me by Rudolf Bach,
of Annaberg, Saxony, Germany, Trimming Manufacturer, to be particularly
described and ascertained in and by the following statement:-
The object of this invention is to provide water-gauge glasses with a protective
apparatus to prevent the boiler attendant from being injured by the bursting of a
glass, and also to enable the position of the water to be accurately ascertained even
in a dim or uncertain light.
The protecting apparatus consists of a number of glass panels set in a frame
and arranged so as to form a prism enclosing the water-gauge glass. The
accompanying drawing shows the protecting apparatus with three or four panelled
glass wall settings, and shews also three different examples of the framework for
holding the glass walls. Of these glass walls those marked a have a mirror plating
or reflecting surface b which wholly or partly covers the respective glass walls.
whilst the remainder of the side walls c is of clear plate glass. The walls are
connected at the top and the bottom by a metal framework which goes round the
water-gauge cock. This metal framework can be produced in one piece as shewn
in elevation in Fig. 1. and in section in Fig. 2, and be clasped together by means
of a screw k. or may be made out of two or more parts and fixed together by
means of pegs or pins o as in Fig. 4 or by screws, s. as in Fig. 5.
In Fig. 2 the framework consists of Ŭ shaped bent grooves g. g' g² g³ the two
latter of which are open in order to allow the water-gauge glass to be passed in or
out. By means of a partition wall these grooves are connected with a shackle
whose open shanks i. i are clasped on to the water-gauge cock by the screw k.
A round rod in the meeting angle of the grooves g and g' holds the pushed in
glass walls c and a tightly in position so that they cannot possibly slide away from
one another.
The
In another example, Fig. 4, three similar grooves m provided with hollowed out
side wings or fius n are connected with each other hinge-wise by long rods o.
Fig. 6 is an elevation of part of Fig. 4 shewing the manner of connecting the
parts at the top corners, the same method is adopted at the bottom corners.
grooves m are each provided at one end with a single eye piece m' and at the other
end with a double eye piece m³ m³ which latter form cheeks for the single eye
piece m' on the next groove m. At the corners the parts are brought together in
the manner shewn in Fig. 6 and are secured by the long rods o which connect the
top and bottom grooves and are fastened by screw nuts o' at top and bottom or by
other suitable means. The rods m prevents the displacement of the glass and
mirror plates. A further example of the framework but with four glass walls is
shown in Fig. 5. The double groove p is bent in the shape of a V, and is provided
with side wings or fins on the inside of the two shanks, has flanges 9 at the ends,
against which rest the flange shaped ends of the straight groover having a side
wing or fin to, the groove r being fastened to the flanges q by means of screws s.
The water-guage glass is held near the smallest wall c by the wings or fins u, v,
and wo.. The walls a have also mirror plating or reflecting surfaces whilst the
walls c are of clear plate glass.

page_text: The protecting apparatus can be passed between the water-guage cocks and over
the water-guage glass and fastened round the former. If the light comes from
the left on the water-guage in the direction of the arrow I Fig. 2, or from the
right in the direction of arrow II Fig. 4, the water in the glass defines itself with
a wide stripe as shewn in Fig. 3, which is a part elevation of Fig. 4 shewing the
tube t in possition, and appears underneath as a clear silver stripe and allows the
position of the water in the glass t, Fig. 3, to be clearly recognised.
Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed I declare that what I
claim is :--
Protective apparatus for water-guage glasses distinguished by the combination
in a suitable framework of several glass panels or walls which are partly transparent
and partly mirrored or reflective producing one or more reflections whereby the
position of the water appears as a bright silver streak, substantially as described
and illustrated in the accompanying drawings.
Dated this 19th day of February 1896.
F. W. GOLBY,
36 Chancery Lane, London, W.C.