Year: 1896

page_text: Date of Application, 1st June, 1896
Complete Specification Left, 26th Feb., 1897-Accepted, 17th Apr., 1897
1, CARL NEUHAUS, of 49 Laudongasse, Vienna, VIII, Austria-Hungary,
Engineer, do hereby declare the nature of this invention to be as follows:-
The object of my invention is to provide an improved water-gauge especially
designed to simplify the insertion of a glass tube and to prevent the breaking of
the latter.
The well known drawbacks incidental to the employment of the water-gauges at
present in use, viz. the frequent breakage of the glass tubes which is often due to
the uneven pressure put upon the same during adjustment, and also the time
required for inserting a tresh tube, are materially reduced, according to the present
invention, by forming the said glass tube with conical ends, which are mounted
fluid-tight in correspondingly arranged conical elastic packing rings (generally of
india-rubber) fitted in suitable casings. By this construction the pressure upon the
glass tube becomes centralized, that is to say, the pressure automatically acts
exactly in the longitudinal centre line of the glass tube whereby the stresses upon
the latter are equally distributed over all parts of the same, whilst at the same time
permitting a free expansion of the said tube.
With reference to the insertion of such glass tubes provided with conical ends,
they can only be applied to such water-gauges that have a casing movable in the
direction of the longitudinal axis of the tube.
In carrying my said invention into practice, the glass tube is provided with
conical ends which are pressed against conical elastic packing rings resting in
correspondingly shaped casings by which arrangement a solid fluid-tight seat and
equally distributed stresses upon the glass tube are thus ensured. The said conical
packing rings bear against shoulders or seats in the casings and are kept in place
by a ring or washer which is retained in position by means of a suitable cap,
gland or nut. The said washers fit loosely in the casings so as to leave sufficient
space around them to allow of a lateral displacement of the tube and washers, by
which construction an undue pressure upon the glass tube by the said rings or
washers is avoided. For the same reason the cap or nut is provided with a suitably
enlarged opening around the tube.
In order to permit the insertion or withdrawal of a glass tube the upper casing is
made adjustable relatively to the lower casing so that it can be drawn up by means
of a hollow extension moving in the gauge cock and provided with a screw-threaded
rod whereby it may be raised and lowered by means of a nut provided with an
external bandle or the like.
It is obvious that the lower casing can be made adjustable instead of or in addition
to the upper casing above mentioned.
The above-mentioned construction also possesses the advantage that a glass tube
can be inserted when both casings are mounted.
Dated this 1st day of June 1896.
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.

page_text: I, CARL NEUHAUS, of 49 Laudongasse, Vienna VIII, Austria-Hungary,
Engineer, do hereby declare the nature of this invention and in what manuer the
same is to be performed, to be particularly described and ascertained in and by the
following statement :-
The object of my invention is to provide an improved water-gauge especially
designed to simplify the insertion of a glass tube and to prevent the breaking of
the latter.
The well known drawbacks incidental to the employment of the water-gauges at
present in use, viz. :-the frequent breakage of the glass tubes which is often due to
the uneven pressure put upon the same during adjustment, and also the time
required for inserting a fresh tube, are materially reduced, according to the present
invention, by forming the said glass tube with conical ends, which are mounted
fluid-tight in correspondingly arranged conical elastic packing rings, (generally of
india-rubber) fitted in suitable casings. By this construction the pressure upon
the glass tube becomes centralized, that is to say, the pressure automatically acts
exactly in the longitudinal centre-line of the glass tube whereby the stresses upon
the latter are equally distributed over all parts of the same, whilst at the same
time permitting a free expansion of the said tube.
With reference to the insertion of such glass tubes provided with conical ends,
they can only be applied to such water gauges as have a casing movable in the
direction of the longitudinal axis of the tube.
In the accompanying drawings,
Figure 1 is a sectional side elevation of my improved water-gauge with a movable
upper casing,
Figure 2 a sectional side elevation of a detail drawn to an enlarged scale, and
Figure 3 a front view showing the casing drawn up.
As shown in the drawing the glass tube a is provided with conical ends a¹ a³,
which are pressed against conical elastic packing rings cc resting in correspondingly
shaped casings b, b, by which arrangement a solid fluid-tight seat and equally
distributed stresses upon the glass tube are thus ensured. The said conical packing
rings bear against shoulders or seats in the casings and are kept in place by a ring
or washer h which is retained in position by means of a cap, gland or nut i. The
said washers h fit loosely in the casings so as to leave sufficient space around them
to allow of a lateral displacement of the tube a and the washers by which
construction an undue pressure upon the glass tube by the said rings or washers is
avoided. For the same reason the cap or nut i is provided with a suitably enlarged
opening at k around the tube.
In order to permit the insertion or withdrawal of a glass tube the upper casing b
is made adjustable relatively to the lower casing so that it can be drawn up by
means of a hollow extension m moving in the gauge cock and provided with a
screw-threaded rod e whereby it may be raised and lowered by means of a uut f
provided with an external handle d or the like.
It is obvious that the lower casing can be made adjustable instead of or in
addition to the upper casing above mentioned.
The above-mentioned coustruction also possesses the advantage that a glass tube
can be inserted, when both casings are mounted.
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 :-
First. A water-gauge provided with a glass tube having conical ends adapted to

page_text: be pressed against elastic packing rings arranged in correspondingly shaped conical
casings, substantially as herein before described.
Second. The combination, with a water-gauge tube and a packing ring therefor,
of a ring or washer for keeping the packing ring in position whilst permitting
lateral displacement of the said packing so as to avoid undue pressure upon the
glass tube, substantially as herein before described.
Dated the 26th day of February 1897.
D. YOUNG & Co.,
11 & 12 Southampton Buildings, London, W.C.,
Agents for the Applicant.