Improvements in Apparatus for Protecting Water-gauge Glasses from Injury.
Year: 1889

page_text: Date of Application, 31st Dec., 1889
Complete Specification Left. 20th Sept., 1890-Accepted, 25th Oct., 1890
PROVISIONAL SPECIFICATION.
[Communicated from abroad by EUGENE VON ASTEN NACHFOLGEN, of Leipzig, in
the Empire of Germany, Merchant.]
Improvements in Apparatus for Protecting Water-gauge Glasses
from Injury.
"
I MORITZ PORTHEIM of 27 York Street, Manchester, Merchant do hereby declare
the nature of my said invention to be as follows:-
This invention consists of a three-sided metal sheath by preference rectangular in
form for surrounding the water guage glass to be protected.-The three sides of
this "sheath are perforated with suitable orifices and are glazed with thick plate glass.
The ends of the sheath which are designed to grasp the metal portion of the guage
glass are made in two halves so as to enable them when separated to be placed
around the guage glass without removing the glass tube from the brass work and
the two halves then fit as lids upon the two ends of the sheaths where they are
clamped in position in each case by a transverse bolt.
In this manner I surround and effectually protect a guage glass from being injured
from the outside say by a blow or from any other cause and I also prevent injury
arising from the bursting of the said guage glass.
Dated this 30th day of December 1889.
JOHN G. WILSON,
Patent Office, 55, Market Street, Manchester, Agent for the Applicant.
COMPLETE SPECIFICATION.
Improvements in Apparatus for Protecting Water-gauge Glasses
from Injury.
I MORITZ PORTHEIM of 27, York Street, Manchester, Merchant, do hereby declare
the nature of my said 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 consists of a three sided metal sheath by preference rectangular in
form for the parpose of surrounding and protecting water-gauge glasses from outward
injury and also to protect the stoker should the gauge glass burst. On the accom-
panying drawing Fig. 1. is a side view of a water-gauge glass with my improved
metal sheath shewn applied thereto and Fig. 2 is a sectional plan view of Fig. 1. on
line a-b (on an enlarged scale).
In both views a designates my improved metal sheath, surrounding the gauge
glass 6 (as seen more clearly in Fig. 2) and on the front and at each side provided with
suitable openings or orifices c, each of which glazed on the inside with thick plate
glass d to allow of the gauge glass being readily seen from the outside.
It will be observed that this sheath is open at the back whilst its ends are embraced
and secured by a yoke, made in halves e and f so as to enable them when separated to
be placed around the gauge glass b without removing the glass tube from the brass
work. These two halves fit upon the ends of the sheath and being clamped in
position thereupon in each case by the transverse rod or bolt g so at the same time
secure the sheath around the gauge glass.
It will be obvious that a curved, cylindrical or other suitably shaped sheath might
be used.
In this manner I surround and effectually protect a water-gauge glass from being
injured say by a blow or from any other cause and further prevent injury arising
from the bursting of the said gauge glass;-the metal sheath and plate glass serving

page_text: to prevent pieces of the fractured gauge glass flying outwards in case of accident
thereto and also shielding the escape of steam or water.
Having thus 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 improved combination of parts constituting my improved water-gauge
glass protector substantially as herein before described and illustrated on the
accompanying drawing.
2nd. The improved metal sheath provided with glazed openings or orifices and
capable of being mounted on the water-gauge glass substantially as and for the
purposes hereinbefore described and illustrated on the accompanying drawing.
Dated this 18th day of September 1890.
JOHN G. WILSON,
Patent Office, 55, Market Street, Manchester, Agent for the Applicant.