Improvements in or connected with Barrels or Cylinders, and in Machinery for the Manufacture of same.
Year: 1894

page_text: Date of Application, 31st May, 1894
Complete Specification Left, 28th Feb., 1895-Accepted. 6th Apr., 1895
PROVISIONAL SPECIFICATION.
Improvements in or connected with Barrels or Cylinders, and in
Machinery for the Manufacture of same.
I, WILLIAM HESLOP of Westmoreland Avenue, Bridlington Quay, in the
County of York, Engineer, do hereby declare the nature of this invention to be
as follows:-
The object of my invention is to construct barrels or cylinders from sheet metal,
in such a manner that they are entirely without joints or seams; and my invention
also has reference to machinery for the manufacture of the said barrels.
According to my invention I form a barrel or cylinder from a single sheet of
metal by stamping or pressing same between male and female dies, preferably in
two operations, as hereafter described.
The sheet of metal is first placed on the upper surface of a female die, of a
shape somewhat similar to that of the intended barrel, and having four or any
convenient nuniber of recesses or openings in the sides thereof, such openings being
preferably widest at their upper ends and tapering gradually to the base.
A male die is employed having a cylindrical outer surface of a diameter somewhat
smaller than that of the female die. On the dies being forced together, the metal
plate is pressed into the interior of the female die, the superfluous metal entering
into the recesses or openings. On the dies coming apart, a lower section of the
female die is raised by means of a plunger, which thus extracts the partially
formed barrel, consisting of a cylinder having wings projecting from its sides at an
angle; and thus the first operation is completed.
The partially formed barrel is now pressed between finishing dies of a slightly
taper form, which lap the wings close to the sides of the vessel. The base of
the barrel is preferably corrugated or bulged in this second operation, by the
corrugated formation of the base of the dies, thus strengthening the said barrel
considerably. The completed barrel is now removed from the dies, after which
the folded wings are, or may be permanently attached to the sides of the barrel
by electric welding or other means.
Barrels or cylinders constructed as above described are exceedingly strong and
durable, at the same time their weight is very small.
For the purpose of making barrels of a larger size the open ends of two barrels
may be placed together and secured by welding or by other suitable means.
Barrels constructed according to my invention are particularly applicable for
carrying petroleum oil, as they can be filled and sealed at the wells, and packed
on board ship with the utmost facility.
Dated this 31st day of May 1894
BREWER & SON,
London and Leeds, Agents for Applicant.

page_text: Improvements in or connected with Barrels or Cylinders, and in
Machinery for the Manufacture of same.
I, WILLIAM HESLOP of Westmoreland Avenue, Bridlington Quay, in the
County of York, 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 :—
The object of my invention is to construct barrels or cylinders from sheet metal,
in such a manner that they are entirely without joints or seams, and my invention
has also reference to machinery for the manufacture of the said barrels.
According to my invention I form. a barrel or cylinder from a single sheet of
metal, by stamping or pressing same between male and female dies, preferably in
two operations, as hereafter described.
In order that my invention may be clearly understood, I will proceed to describe
same with reference to the accompanying drawings, in which similar letters refer to
like parts in all the figures.
Fig. 1 is a transverse section of preliminary male and female dies, showing inetal
sheet pressed into shape between them, and Fig. 2 is a sectional plan of said
female die.
Fig. 3 is a transverse section of finishing male and female dies, showing metal
sheet pressed to the required shape, and Fig. 4 is a sectional plan of said
female die.
Fig. 5 is a sectional plan of partially formed barrel as produced by the dies
shown at Figs. 1 and 2.
Fig. 6 is a sectional plan of finished barrel as produced by the dies shown at
Figs. 3 and 4.
Figs. 7, 8, 9 and 10 are detail views.
The required formation of plate may be cut out of metal sheet by means of an
ordinary shearing machine, or the whole formation may be cut out at one and the
same time by means of dies of the same shape as that of the required plate, which
dies are also of ordinary and well known construction. The sheet of metal, which
is to form the barrel, having been thus cut to shape, is now placed on the upper
surface of the female die A, which is of a shape somewhat similar to that of the
intended barrel, and having four or any convenient number of recesses or openings B
in the sides thereof, such openings B being preferably widest at the upper part of
the die A, and tapering inward gradually toward the base of the said die. A male
die C is employed having a cylindrical outer surface of a diameter somewhat
smaller than that of the interior of the female die A.
On the dies A and C being forced together, the metal plate is pressed into the
interior of the female die A, the superfluous metal entering into the recesses or
openings B. On the dies coming apart, a lower section A' of the female die A is
raised by means of a plunger D which thus extracts the partially formed barrel,
consisting of a cylinder E having wings El projecting from its sides as shown at
Fig 5 which wings are widest at the upper part, and taper inward gradually to the
base; thus completing the first operation.
In order that the plate.shall enter the female die A in au uniform and even
manner, 1 form grooves or channels in the plate by means of raised and sunken
parts on the cutting out dies, which grooves run from each corner of the plate to a
central dish-like formation, so that on placing the plate on the lower die A, these
radial grooves are adjacent to their respective recesses B in the die A, and on the
dies coming together the grooved parts of the plate first enter into the recesses B,
thus ensuring the same amount of metal being taken up by each recess.

page_text: The partially formed barrel is now pressed between the finishing dies A and C,
as shown at Figs. 3 and 4, which dies are of the same shape as that of the intended
barrel. These dies have the effect of lapping the wings El close to the sides of
the cylinder E as shown at Fig. 6. The base of the barrel is preferably forced
inward in this second operation as shown at Figs. 3 and 4 by the special formation
of the base of the dies A and C, thus strengthening the said barrel considerably.
The completed barrel is now removed from the dies A and C by the rising of the
lower section A' of the female die A through the medium of the plunger D, after
which the folded wings E' are permanently attached to the sides of the barrel by
electric welding or other means.
For the purpose of making barrels of a larger size, as shown at Fig. 7, the open
ends of two barrels, constructed as above described, are placed together and
secured at the centre by welding or by other suitable means; whilst a small
barrel is provided with a suitable cover as shown at Fig. 8.
In making two halves to form the complete barrel shown at Fig. 7, it is
necessary that the finishing dies for forming each half, shall be slightly varied
in form, so as to produce respectively a straight, and a projecting portion
or flange on the respective barrels. For this purpose I employ the greater
portion of the finishing dies above described, in each case the only alteration
being that the male die C is divided into two parts a and a', whilst the female
die A is provided with loose pieces b at its upper part. In this manner the
upper portion of the male die A, and the loose piece on the female die is
interchangeable. Fig. 9 shows the arrangement for forming the continued straight
portion e, and Fig. 10 shows the arrangement for forming the projecting portion e.
Barrels or cylinders constructed as above described are exceedingly strong and
durable, whilst at the same time their weight is very small, which render them
particularly applicable for carrying petroleum oil, as they can be filled and sealed
at the wells, and packed on board ship with the utmost facility.
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 :-
1. The female die A having openings B, in combination with the male die C,
substantially as described and as shown at Figs. 1 and 2 of the accompanying
drawings.
2. The finishing dies, constructed substantially as described with reference to
Figs. 3 and 4 of the accompanying drawings.
3. The construction of the dies shown at Figs. 9 and 10, whereby a flange may
be formed on the edge of the barrel, substantially as described.
4. The construction of barrels, substantially as shown at Figs. 5, 6, 7 and 8 of
the accompanying drawings.
5. The general arrangement, construction and combination of the various parts
forming my improvements in barrels or cylinders, and in machinery for the
manufacture of same, substantially as set forth.
Dated this 28th day of February 1895.
BREWER & SON,
London and Leeds, Agents for Applicant.