Improvements in or relating to the Construction or Lining of Casks and Barrels.
Year: 1895

page_text: Date of Application, 18th Jan., 1895-Accepted, 23rd Feb., 1895
COMPLETE SPECIFICATION.
Improvements in or relating to the Construction or Lining of Casks
and Barrels.
We, EMIL Voss, Sen., Bell Founder, and ALFRED DANKHOFF, Master Brewer,
both of Stettin, in the Empire of Germany, 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 object of this invention is to provide a substitute for the application of pitch
to the interior of barrels and casks and especially beer barrels, which has numerous
disadvantages and must often be renewed in the form of a metallic lining to be left
permanently in the cask thus obviating all the disadvantages of pitch and saving
time and working expenses. From experiments made we have found that aluminium
is more suitable than other metals to serve as an inner coating for barrels and as a
means for securing the tightness, especially of beer-barrels.
In the annexed drawing a method of construction of a barrel lined and packed
or tightened in this improved manner is illustrated; Fig. 1 showing a vertical
section and Fig. 2 a horizontal section on the line of Fig. 1.
It will be seen from Fig. 1 that the aluminium lining a on the inner walling of
the barrel and the lining a' arranged on the heads of the cask come in contact
along the grooves c worked into the staves for receiving and fixing the heads e e
and are pressed tightly against each other by means of the hoops d forced around
the outside of the cask; it will likewise be seen from Fig. 2 that the sheet metal
strips a have their edges bent around the staves b and are likewise pressed against
one another by means of hoops. As moreover these sheet aluminium plates are
soldered at their meeting edges a tight closure is effected, so that in a cask lined in
this manner a metal cask is so to say arranged within a wooden cask.
The method of producing a cask of the above described kind is as follows- After
the staves have been prepared in the usual way the aluminium plates are cut out
of thin sheet metal so as to correspond in form to the wooden staves, but slightly
wider; these aluminium staves are then placed upon the inside of the wooden staves
and their projecting edges bent outward.
After the aluminium lined staves have been loosely fitted together the heads e e,
which are likewise lined on their inner sides with a circular plate of aluminium
slightly projecting over the periphery and bent over the latter, are inserted into the
grooves c and the hoops d are firmly driven onto the cask. The whole inner
coating of the cask is then pressed by means of hydraulic pressure (the water being
introduced through the hung hole f) against the inner surfaces of the staves b and
heads e. After all meeting places of the plates have been well soldered the cask is..
ready for use.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is
A barrel or cask having an inner coating of metal such as aluminium formed of
sheet metal strips a corresponding in size to the different staves b with their over-
lapping edges bent outwardly and thus meeting in pairs between the staves and two
circular sheet metal plates a¹ covering the inner sides of the heads e e likewise
overlapping the latter and with their peripheral edges bent outward, which plates

page_text: and strips a are tightened by exterior hoops and their joints completely closed by
solder substantially as set forth.
Dated this 18th day of January 1895.
HERBERT HADDAN & Co.,
18, Buckingham Street, Strand, London, W.C.,
Agents for the Applicants.