Improvements in Gauge-glass Fittings for Sight-feed Lubricators, Steam Boilers, and the like.
Year: 1897

page_text: Date of Application, 14th Jan., 1897.
Complete Specification Left, 7th Oct., 1897--Accepted, 13th Nov., 1897
PROVISIONAL SPECIFICATION.
Improvements in Gauge-glass Fittings for Sight-feed Lubricators,
Steam Boilers, and the like.
I, CHARLES CHEERS WAKEFIELD General Manager, 3 Pendennis Road, Streatham
in the County of Surrey, do hereby declare the nature of this invention to be as
follows:-
The chief object which I have in view in this invention is to provide means by
which the gauge-glass can be inserted, secured and removed without the necessity
for detaching the fittings or any part of them excepting one plug or cap.
In carrying out the invention I form one or both, but preferably one, of the
lugs which carry the top and bottom ends of the glass with a removable cap or
plug so as to leave a clear passage in the axial line of the tube so that the tube
can be inserted or removed when the cap or plug is unscrewed. To secure the
tube in position I let it rest at the lower end in any suitable socket or equivalent
in which it may be held by a rubber ring or other suitable means and at the
top end I employ a plug with a hole in it which screws inside the lug or fitting
of the gauge-glass holder, pressing a rubber ring or other suitable packing device
to a sufficient extent to hold the gauge-glass, prevent it from escaping and when
required make a steam-tight joint with it. The plug may be provided with holes
for a pin spanner or an orifice it may be squared or otherwise adapted to receive
a squared wrench or equivalent for the purpose of screwing it in or out.
BOULT & WADE,
Agents for the Applicant.
Improvements in Gauge-glass Fittings for Sight-feed Lubricators,
Steam Boilers, and the like.
I, CHARLES CHEERS WAKEFIELD General Manager, of 3 Pendennis Road,
Streatham, in the County of Surrey, 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: —
The chief object which I have in view in this invention is to provide means by
which the gauge-glass can be inserted secured and removed without the necessity
of detaching the fittings or any part of them excepting one plug or cap.
In carrying out the invention I form one or both, but preferably one, of the
branches which carry the top and bottom ends of the glass with a removable cap
[Price 8d1

page_text: or plug so as to leave a clear passage in the axial line of the tube so that the tube
can be inserted or removed when the cap or plug is unscrewed. To secure the
tube in position I let it rest at the lower end in any suitable socket or equivalent
in which it may be held by a rubber ring or other suitable means and at the top
end I employ a plug with a hole in it which screws inside the branch or fitting of
the gauge-glass holder pressing a rubber ring or other suitable device to a sufficient
extent to hold the gauge-glass, prevent it from escaping, and when required make
a steam-tight joint with it. The plug may be provided with holes for a pin
spanner or the orifice in it may be squared or otherwise adapted to receive a squared
wrench or equivalent for the purpose of screwing it in or out.
The accompanying drawing shows an application of the invention to the gauge-
glass of a sight-feed lubricator, the lower portion being in side elevation and the
upper portion chiefly in section.
A is the bottom branch, B the regulating handle, C the supply nozzle, and D
the gauge-glass, all of well known form. E is the top brauch into the lower
portion of which is screwed the hollow plug F the lower end of which is recessed
as shown for the reception of the upper end of the gauge-glass D and an india-
rubber or other packing ring G. FI is a square hole through the upper portion of
the plug F affording a passage for the oil and also serving as the socket for a
square key or wrench for screwing and unscrewing the plug. To enable the plug F
to be easily inserted and withdrawn the upper portion of the branch E is bored
out to a greater diameter than the lower portion. The top is closed by a screw
plug H.
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:-
1. In a gauge glass fitting the employment of a plug such as F substantially
as described.
2. Fixing a gauge-glass by means of a plug such as F screwing within the
supporting branch and a packing ring substantially as described.
3. In gauge-glass fittings the combination with a supporting branch of a
recessed and perforated plug such as F and a packing ring substantially as and
for the purpose described.
Dated this 30th day of September 1897.