Improvements in the Manufacture and Construction of Steel and Iron Barrels.
Year: 1896

page_text: PROVISIONAL SPECIFICATION.
Improvements in the Manufacture and Construction of Steel and
Iron Barrels.
JAMES MARTIN STORRAR, Oil and Produce Merchant 11 Bothwell Street Glasgow
and WILLIAM CRAWFORD Tinsmith 46 Muse Lane Glasgow, do hereby declare the
nature of this invention to be as follows:-
Our inventions relate to the mode of manufacturing, steel, iron, or other metal
barrels or similar vessels; and our present object is to modify & improve the
apparatus and mode of manufacturing so as to make both more convenient and
effective.
In carrying out our present inventions, according to one modification, the ends
of the barrel or other similar vessel may be fixed on to the cylindrical metal body
before it is put into the bulging mould or casing, in which case hydraulic or
pneumatic power is employed to form the bulge.
According to a second modification, an inside liner made of india rubber or other
similar material of the same shape & dimensions as the cylindrical body, and with or
without ends, may be used in the bulging process, it being placed into the cylindrical
metal body before closing up the mould or casing and puting on the hydraulic or
pneumatic power.
Dated this Second love of Anvil 1806
J. M. STORRAR.
WM.
CRAWFORD.
Improvements in the Manufacture and Construction of Steel and
Iron Barrels.
We, JAMES MARTIN STORRAR Oil Merchant, 11 Bothwell Street, Glasgow, and
WILLIAM CRAWFORD, Tinsmith, 46 Meuse Lane, Glasgow, 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 :-
Our invention relates to the mode of manufacturing steel, iron or other metal
barrels or similar vessels, and our present object is to modify and improve the
apparatus and mode of manufacturing so as to make both more convenient and
effective.
The invention is illustrated by the accompanying drawings, Fig. 1 being a vertical
section shewing the barrel in cylindrical form within the bulging mould before it is
subjected to internal pressure. Fig. 2 is a vertical section shewing the barrel in its
ultimate form after it has been subjected to internal pressure.
In carrying out our present invention, according to one modification the ends of

page_text: the barrel or other similar vessel may be fixed on to the cylindrical metal body A
before it is put into the bulging mould or casing B in which case hydraulic or
pneumatic power is employed to form the bulge.
According to a second modification and as illustrated by Figs. 1 and 2 an inside
liner or liners or bag C made of india rubber or other similar material of the sama
shape and dimensions-as-the-cylindrical body A may be used in the bulging process,
it being placed into the cylindrical metal body before closing up the mould or casing
and putting on the hydraulic or pneumatic power. By this means less water or air is
required and also less time taken in the bulging operation.
The casing which forms the mould may be made in two or more parts to admit of
the removal of the barrel after being bulged.
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 :-
1. The manufacture of an iron or steel barrel from a cylindrical body with closed
ends by placing it in a bulging mould or casing and subjecting it to internal hydraulic
or pneumatic pressure.
2. In the manufacture of steel and iron barrels the employment of a flexible liner
or bag as a container for the water, air or gas used under pressure in the process of
bulging the barrel.
Dated this Second day of January 1807
WALLACE FAIRWEATHER,
Chartered Patent Agent,
62 St. Vincent Street, Glasgow, Agent for the Applicants.