Improvements in Flexible Tubes to be used for Enclosing Liquids or Semi-liquids.
Year: 1897

page_text: Date of Application, 30th Dec., 1897
Complete Specification Left, 26th Sept., 1898-Accepted, 10th Dec., 1898
PROVISIONAL SPECIFICATION.
Improvements in Flexible Tubes to be used for Enclosing Liquids
or Semi-liquids.
We, BETTS & COMPANY LIMITED, of No. 1, Wharf Road, City Road, in the
County of London, and WILLIAM NIMMY, of 4, Oakley Road, Southgate Road,
Islington, in the said County, Engineer, do hereby declare the nature of this inven
tion to be as follows:-
This invention relates to tubes made of flexible metal or alloy and provided
with an orifice closed by a screw cap through which orifice on the removal of the
cap, the contents of the tube can be squeezed by pressure applied to the tube.
Such tubes as hitherto made have not been suitable for enclosing oils and like
liquids as owing to the closure of the base being effected simply by folding over
and pressing the metal together the said liquids have been very liable to leak
from the tube through the closure thus made. Such tubes are customarily made
and sent out by the manufacturer with one end furnished with the orifice and screw
cap aforesaid and with the other end open. These tubes are filled by the persons
to when they are supplied through the said open end which is then flattened and
folded and the metal pressed together to form as good a joint as can be formed by
this means, but it is not such as can be relied upon to retain thin liquids such as
oils for example in the tube. The object of this invention is to provide a tube
which can be supplied to purchasers in such a condition that when closed by the
purchasers in the usual way they are sealed at the closed joint and will
efficiently retain their contents in however thin a liquid form they may be.
According to this invention there is applied to the open end of the tube which
is to be closed when the tube is filled a cement which is to be damped
before the metal of the open end of the tube is flattened and folded over in the
usual way. The said cement is applied in a thin layer which may be done in any
suitable way as by dipping in a solution of the cement or by a brush or by a
rotating spreader against which the end of the tube is brought. The cement is
preferably applied to both the inside and outside of the tube end for a short dis-
tance from the edge. The invention is not limited to the use of a particular
description of cement but a suitable cement is a mixture of gum arabic, Scotch
glue, common soda and quick lime in distilled water.
Dated this 30th day of December 1897.

page_text: Islington, in the said County, Engineer, do hereby declare the nature of this inven-
tion and in what manner the same is to be performed to be particularly described
and ascertained in and by the following statement :-
This invention relates to tubes made of flexible metal, or alloy, and provided
with an orifice closed by a screw-cap, through which orifice, on the removal of the
cap, the contents of the tube can be squeezed by pressure applied to the tube.
Such tubes, as hitherto made, have not been suitable for enclosing oils and like
liquids, as, owing to the closure of the base being effected simply by folding over
and pressing the metal together, the said liquids have been very liable to leak
from the tube through the closure thus made. Such tubes are customarily made
and sent out by the manufacturer with one end furnished with the orifice and screw-
cap aforesaid and with the other end open. These tubes are filled by the persons
to whom they are supplied through the said open end which is then flattened and
folded and the metal pressed together to form as good a joint as can be formed by
this means, but it is not such as can be relied upon to retain thin liquids, such as
oils for example, in the tube. The object of this invention is to provide tubes
which can be supplied to purchasers in such a condition that when closed by the
purchasers in the usual way, the said tubes are sealed at the closed joint and will
efficiently retain their contents, in however thin a liquid form they may be.
According to this invention there is applied to the open end of the tube, which
is to be closed when the tube is filled, a cement which is to be damped, or moistened,
before the metal of the open end of the tube is flattened and folded over in the
usual way.
The said cement is applied in a thin layer which may be done in any
suitable way such as by dipping in a solution of the cement, or by a brush, or by a
rotating spreader, against which the end of the tube is brought. The cement is
preferably applied to both the inside and outside of the tube end for a short dis-
tance from the edge. The invention is not limited to the use of a particular
description of cement, but a suitable cement is a mixture of gum arabic, Scotch
glue, common soda, and quick lime, in distilled water as described in the Specifica-
tion of our Patent No. 2121796; or a solution of shellac in spirit may be used and,
if this be used for tubes to be filled with oil the oil will moisten the cement and,
after the tube is closed by bending over the metal, and pressure, applied with heat,
the cement will firmly seal the end of the tube.
Having now particularly described and ascertained the nature of this
invention and in what manner the same is to be performed, we declare that what
we claim is :-
. A flexible metal tube provided with cementing material around the open end
which is to be closed when the tube is filled; substantially as hereinbefore
explained.
Dated this 26th day of September 1898.
JOHNSONS & WILLCOX,
47, Lincoln's Inn Fields, London, W.C., Agents.