Improvements in Collapsible Casks, Tubs, Cisterns, Drums, and the like.
Year: 1895

page_text: Date of Application, 8th Oct., 1895-Accepted, 16th Nov.. 1895
COMPLETE SPECIFICATION.
Improvements in Collapsible Casks, Tubs, Cisterns, Drums, and
the like.
I WILHELM STERN, Merchant of 162 Rue de la Province Sud, Antwerp in the
Kingdom of Belgium do hereby declare the nature of this said 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 the present invention to provide a collapsible vessel that is to say
one consisting of detachable parts which may be fitted together for the transport
of liquids or compact matter and which may be taken to pieces when empty. This
object is obtained by connecting the top and bottom parts of a cylindrical or square
receiver, in a manner more particularly described hereinafter, with the detachable
side parts of such receiver.
The connection of the side parts, the number of which will always depend upon
the size of the required vessel or cask being done by fixing into one another, the
longitudinal edges suitably folded for this purpose.
These casks may be used as stationery receivers but are especially adapted for
use as transport casks for when empty they may be disconnected and freighted
back according to their weight instead of being sent as ordinary casks paying
freight according to the space they occupy.
In the accompanying drawings
Figs. 1 to 4 represent two different forms of folding for the edges of the side
parts and Fig. 1 represents a longitudinal section through the receiver.
Fig. 2 a cross section. Fig. 3 an interior flush folding and Fig. 4 an interior
projecting folding in detail.
Fig. 5, 6 & 7 show 2 methods of fixing the top and bottom parts.
Fig. 8 is a perspective view of the cask.
On Sheet 11 Fig. 9 represents a square cask or vessel in cross section.
The cask with interior flush folding shown in Figs. 1 and 2 is supposed to have
two side parts which consist of two half round bent metal plates a and a' the longer
edges of which are folded in the manner shown in Fig. 3. The one edge of the
metal plate a is bent back at 1 on to the outer circumferance of the metal plate,
at 2 it makes another turn 3 towards the other side and in such a manner that
between the first turn and this latter a distance equal to the thickness of the metal
remains. The long edge of plate a¹ is bent in the same manner only the second
bend fits tightly onto the first. The now projecting part 4 will fit between the
bends of plate a when joining the cask. As the two longer edges of each metal
plate are fitted in the same manner, the joint will be made perfectly tight.
In Fig. 4 another method of folding is represented. Here the longer edges are
bent in S-form and the free projecting parts 5 and 6 fit together tightly into the
recess of the opposite metal plate. This method differs from the former, chiefly
that the interior of the reservoir will not be flush. The resulting inequalities may
be removed by passing the connected parts through a folding machine. Fig. 1
and 2 also show the fixing and tightening of the top and bottom parts. The metal
olate a and a' are provided at their ends with grooves call along the edge of the
ונס.

page_text: plate and having an angular cross sectional form; for instance a cylindrical head /
with broad flange d has also grooves as described above.
The close fitting into one another of these grooves will permit of tightening most
effectually the head and side parts a and a¹ respectively, when the latter are
drawn together by hoops or lugs as hereinafter described, which tightening is
materially strengthened by fixing around a hoop h in two parts, grooved in the
interior and pressed together by screw g. In the head a bung hole may be
provided in any suitable place.
If as shown in Fig. 5 the grooves on the sides and heads are omitted, and the
tightening of these parts is obtained soley by the above mentioned hoop, it will be
necessary to provide a connection between the flat sectioned hoop and the head 7.
This may be obtained by an angle K (Fig. 6) rivetted or screwed to the flange d
which angle will be connected with the hoop h by screw g.
If to reduce the weight of the cask as much as possible the hoop is to be omitted
altogether the construction shown in Fig. 7 may be used. Two metal plates m
angle bent and provided with flanges q are riveted to the side parts a near the
foldings, and the bottom flange d receives an angle which is connected with
flanges y by the screw 0. Moreover these rivetted parts are provided with
pressure screws r, Fig. 7, which project inwards and are intended to exercise
pressure on the folding, which will hold it tightly together.
Fig. 8 represents an elevation of a vessel made on the above plan the heads of
which are fixed in the manner shown in Fig. 2. In the sides are made the angular
sectioned grooves for giving greater stiffness to these parts; their number varies
according to the length of the cask.
To prevent the casks when rolling from running only on their end flanges and to
give them an additional support in the middle there may be fitted angle-iron
half-rings S constituting hoops in any required number and distance one from
another along their length. (See Fig. 1.)
Casks which are to be filled with expansive or volatile liquids may be provided
with tightening rings (Fig. 1) between the bottom and the side parts which may
be fitted either flush or in grooves.
Fig. 9 Sheet 11 represents a rectangular vessel consisting of four side parts Q
connected by the above described method of folding. The connection of these is
obtained by means of rivetted plates R held together by screws 8.
With open vessels or reservoirs such as tulis, cisterns &c., the open edge niny be
surrounded by an angle iron hoop either flush or as shown in Fig. 1 which prevents
the loosening of the foldings and strengthens the upper part of the vessel.
The connection of half-cylindrical metal plates by the above described process of
folding may also be used in the manufacture of tubes and pipes.
Having now particularly described and ascertained the nature of this said
invention and in what manner the same is to be performed I declare that what
I claim is :-
1. A collapsible metal receiver or cask consisting of two or more metal plates
bent in cylindrical or angular form, the longitudinal edges of which are folded so
as to fit one into the other as a feather and groove, which plates are provided at
their ends with grooves c into which fit the grooves of the head the parts being
pressed together by a hoop h grooved in the interior.
to fit
2. In a reservoir as described in Claim 1 the manner of folding consisting
in (a) the S bent longitudinal edges being folded in such a manner as
against each other in the interior which renius flush. (b) the S bent longitudinal
edges being folded in such a manner so as to cover one another, resulting in
projection in the interior.
21
3. On vessels as described in Claim 1 the means for fixing of the heads without
grooves, consisting of an angle K fixed on the bottom Hanged and which is either
connected with ring or with the angular plates rivetted to the sides of the

page_text: folding which flanges are provided with pressure screws r for exercising an inward
pressure on the folding.
Dated this 8th day of October 1895.
HERBERT HADDAN & Co.,
18 Buckingham Street, Strand, London, W.C., Agents to Applicant.