AN IMPROVED VALVE TAP FOR CASKS AND OTHER VESSELS
Year: 1888

page_text: тар
WADAD and
V UNSUIS.
I, WILLIAM DAVIS GODSON of Lelsden Road, Croydon, in the County of Surrey do
hereby declare the nature of said invention for "AN IMPROVED VALVE TAP FOR CASKS
AND OTHER VESSELS" to be as follows:-
This invention has reference to a valve tap which may be slid for the greater part
of its length into and out of the cask or vessel to which it is applied, the former being
its position when not in use for drawing off from the same and the latter when it is
required to be shut off and out of the way. In this latter position the valve tap projects
very little beyond the outside of the cask and is well within the rim usually projecting
from the head of ordinary casks such as beer casks.
The object of the invention is to provide a tap which may be conveniently applied
to casks at the place where the contents of the same are manufactured and from which
it is sent out to customers, in such a way as not to be liable to damage in transport or
handling.
For this purpose I make the hollow barrel of the tap of a circular parallel form, one
end of which passes through a metal plate fixed against an india rubber washer to the
outside of the cask, in front of, and in communication with a bung hole or outlet, into
a fixed perforated casing.
The liquid in the cask at all times fills up a certain length of the barrel beyond
which its passage outwards is kept normally closed by a diaphragm provided with an
orifice which when not closed opens into a plug chamber, or vertical barrel which has
to be pushed down against the resistance of springs by the key of the tap when
it is required to draw off from the cask or vessel, the plug then being placed in
communication with the inner end of the barrel of the tap thus allowing the liquid
to pass out downwards through the plug. The outer end of the parallel barrel has
a knob or handle-which may be secured by a padlock-for pushing the same in

page_text: and out of the cask, the length of the in and out travel being limited by projecting
points on the fixed plate taking into grooves formed in the barrel, or the barrel
may have projections to engage in grooves in the fixed plate; or in the fixed casing
these arrangements also prevent the top from turning round; further, instead of the
plug opening and shutting by pressure it may be screwed and unscrewed.
The india rubber washer between the fixed plate and the cask or vessel effects a tight
joint for the barrel of the tap to slide in. The inner end of the barrel may also carry
an india rubber ring.
Dated this 26th day March 1888
JULIUS HALL,
80-81, Strand, London, W.C.,
Agent for the Applicant.

page_text: COMPLETE SPECIFICATION.
An Improved Valve Tap for Casks and other Vessels.
I, WILLIAM DAVIS GODSON of Lelsden Road, Croydon, in the County of Surrey,
Commercial Traveller, 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 a valve tap which may be slid for the greater part of
its length into and out of the cask or vessel to which it is applied, the former being
its position when not in use for drawing off from the same and the latter is the open
position. In the former or closed position the valve tap projects very little beyond the
cask or vessel and comes well within the rim or chine usually projecting from the
head of ordinary casks such as beer casks.
The object of the invention is to provide a tap which may be conveniently applied to
casks and other vessels at the place where the contents of the same are manufactured
and from which it is sent out to customers, in such a way as not to be liable to damage
in transport or handling.
с
Referring to the accompanying drawing Figs. 1 and 2 shew two different way of
carrying out the invention, being each a longitudinal section of a valve tap in
accordance with the same. Figs. 3 and 4 aro respectively front end views thereof.
Fig. 5 is a vertical cross section through line A B of Fig. 2. With reference chiefly
to Fig. 1; I make the hollow barrel a of the tap, of a circular parallel form, one end
of which passes through a metal plate b fixed against an india rubber washer c to the
outside of the vessel in front of and in communication with a bung hole or outlet, into
a fixed perforated casing d. The inner end of the barrel a carries an elastic ring e by
which when the tap is closed the liquid is completely shut off from the same through
the orifices, f, being covered, although the chief purpose of the elastic (or a metal)
The
ringe is to preserve a tight joint between the fixed casing d and barrel, a.
passage of the liquid outwards is kept normally closed by a diaphragm, y, provided
with an orifice h which when not closed by vertical barrel or piston valve
through this latter into chamber k and thence out through orifice l. To open the
orifice the vertical barrel i has to be pressed down by a key passing through orifice m
against the resistance of one or more springs n. The outer end of the parallel, barrel a
has a handle o which may be secured when the tap is shut off by a padlock to a
staple, p. The length of the in and out travel of the barrel a is limited by a feather
on the fixed plate 6 taking into a groove formed in the barrel or this may have a
projection to engage in a groove in the fixed plate bor in the fixed casing, d; these
arrangements, prevent the barrel a from turning round. The India-rubber washer c
effects a tight joint for the barrel a to slide in (Fig. 1).
opens
In the form of the tap shewn in Fig. 2 the joint between the barrel a and fixed
perforated casing d is effected by means of a screw a' and stuffing box e¹, and a
horizontal plug is fitted into barrel a for opening and closing the tap, being when
turned round in the barrel a by the handle, o, from the shut off position shown in the

page_text: drawing, opened by turning the handle till the orifice h' of the plug comes opposite
the orifice of barrel a. An annular dise q is brazed or otherwise fixed to the inner
end of barrel a having a notch (Fig. 5) for taking on to a feather s (Fig. 2) in
fixed perforated casing to prevent the barrel from turning round, it also limits the
outward travel by coming in contact with the inner end of the stuffing box; t is an
elastic, or metal joint ring screwed tight on plug i¹ by nut u. The plug may be
either parallel or taper, fitting into a parallel or taper seating in the barrel a, according
to the material of which it is made. It may be prevented from having too much play
lengthwise by joint pin coming against front end of barrel or by other convenient
Instead of the fixed perforated casing d screwing into metal plate b as shewn
in the drawing (Fig. 2) both inay be in one piece.
ineans.
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 :-
The tap, constructed and operated substantially as described and shewn with reference
to the several figures of the drawing or any modification thereof.
JULIUS HALL,
80 & 81, Strand, London, W.C.,
Agent for the Applicant.