An Improvement in Bungs, Valves, or Stoppers.
Year: 1894

page_text: Date of Application, 28th June, 1894
Complete Specification Left, 27th Mar., 1895-Accepted, 27th Apr., 1895
PROVISIONAL SPECIFICATION.
An Improvement in Bungs, Valves, or Stoppers.
We THOMAS CRITCHLEY BARRACLOUGH of 20 Bucklersbury in the City of
London, Engineer, and THOMAS TANNETT HEATON of the same place, Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention has reference to bungs, valves or stoppers which have a conical
face to fit upon a conical seat and have also one or more gaps or recesses at the
periphery to enable them to pass projections upon another device such for example
as a hollow screw. A bung, valve or stopper of this character is described in the
Specification of our Patent No. 23574 of 1892.
It has been found that there is some difficulty in fitting these conical bungs or
valves to their conical seats if the fitting surfaces are wide because it is somewhat
difficult to make the angle of the bung or valve the same as that of the seat and the
result is that leakage sometimes occurs through the gaps or recesses.
The object of our present invention is to overcome this objection and for this
purpose we reduce the width of the fitting surfaces.
In carrying out our invention we make the bung or valve with a narrow annular
band of say th of an inch wide more or less projecting from the periphery of the
bung or valve below the gaps or recesses. This annular band will hermetically fit
the conical seat even if the angles of the band and seat do not exactly correspond.
Consequently any liability to leakage is effectually avoided.
Dated this 28th day of June 1894.
J. C. MEWBURN & ELLIS,
55 & 56, Chancery Lane, London, Patent Agents.
We, THOMAS CRITCHLEY BARRACLOUGH of 20 Bucklersbury in the City of
London, Engineer and THOMAS TANNETT HEATON of the same place, Engineer,
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:-
This invention has reference to bungs, valves or stoppers which have a conical
face to fit upon a conical seat and have also one or more gaps or recesses at the
periphery to enable them to pass projections upon another device such for example
as a hollow screw. A bung, valve or stopper of this character is described in the
Specification of our Patent No. 23574 of 1892.
It has been found that there is sometimes a difficulty is fitting these conical bungs
or valves to their conical seats if the fitting surfaces are wide because special care
is required to make the angle of the bung or valve the same as that of the seat, the
result is that where the fitting is imperfect leakage is liable to occur through the
gaps or recesses.
The object of our present invention is to overcome this objection and for this
purpose we reduce the width of the fitting surfaces.

page_text: In carrying out our invention we make the bung or valve with a narrow band of
say one sixteenth of an inch wide more or less projecting from the periphery of the
conical bung or valve below the gaps or recesses. This band will perfectly close
the bung hole even if the angles of the band and seat do not exactly correspond.
Consequently any liability to leakage is effectually avoided.
The accompanying drawings represent a bung, valve or stopper and seating for
same of the construction described in our said former Specification No. 23574
of 1892 but with the improvement which constitutes the present invention applied
thereto.
In these drawings
Figure 1 is a plan, Figure 2 a side elevation and Figure 3 a section on the
line A B of Figure 1 of the conical valve.
Figure 4 is a vertical section and Figure 5 a plan showing the valve in position
on its conical seat.
a is a boss or bush, screw-threaded at b, so as to constitute a nut, and formed with
lugs ee having screw holes to allow of its being screwed to a wooden cask. d is a
conical valve seat formed in a piece with the boss or bush a. e is a hollow or
tubular screw adapted to engage with the screw or nut of the bush a. fff are
internal projections on the tubular screw e to engage with the back of the valve.
g is a conical valve. hhh are gaps or recesses at the edge of the valve to enable
the valve to pass the projections fff in a vertical direction when the gaps and
projections are in coincidence. i is a shank or finger piece projecting from the
back of the valve. All the parts lettered from a to i inclusive and above described
are the same or substantially so as are shown and described in our said former
Specification.
k is the narrow band which according to our present invention we form around
the periphery of the valve g below the gaps or recesses hhh.. This band as has
already been stated will perfectly close the conical seat even if the angles of the
band and seat do not exactly correspond; all liability to leakage is thus avoided.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what
we claim is :-
The construction of a bung, valve or stopper of the character herein referred to
with a narrow band projecting from the periphery below the gaps or recesses
substantially as and for the purpose hereinbefore described.
Dated this 27th day of March 1895
J. C. MEWBURN & ELLIS,
55 and 56, Chancery Lane, London, Chartered Patent Agents.