Improvements in Cannisters for the Purpose of Ensuring a More Secure Fit between the Lids and Bodies thereof.
Year: 1897

page_text: Date of Application, 17th Dec., 1897
Complete Specification Left, 19th Sept., 1898-Accepted, 29th Oct.,
1898
Improvements in Cannisters for the Purpose of Ensuring a More
Secure Fit between the Lids and Bodies thereof.
We, NEVILLE HANBURY MANDER, of the Firm of Mander Brothers, of Saint
John's Street, Wolverhampton, in the County of Stafford, Varnish and Colour
Manufacturers, and ARTHUR SHIRLEY, of the same address, Foreman in the em-
ployment of the said Firm, do hereby declare the nature of this invention
to be as follows:-
to
This invention relates to the type of cannister now in common use for holding
varnishes, paints, colours, and other substances which do not require
be contained in hermetically-sealed vessels, in which the rims of the mouths are
each formed around the inner edge of an inward flange which is a short distance
inwards from the upper edge of the body, and in which the lids are each formed
with a flange or slight projection around its upper edge, so that by using the
upper edge of a body as a fulcrum a coin or other piece of metal may be used
as a lever to press up against the underside of the flange or projection around the
lid and thus prize the lid open.
Heretofore it has been usual, in this type of cannister, to fit a body and lid
to-gether by simply pressing a rim of the lid around or within a rim formed around
the mouth of the body. The inner rim, however, is unsupported against any
tendency to bend inwards under any strain to which the cannister may be exposed,
and thus the joint between the lid and body is liable to become leaky. In some
cases, it is found necessary to secure the joint by running glue or cement into
the annular groove formed between the rim of the lid or mouth, as the case
may be, and the portion of the body which extends upwards from the inward
flange aforesaid.
Now, this invention has for its object to fit to-gether the lid and body of a
cannister of the above type in a manner which will ensure a thoroughly good
fit all round and securely prevent any part of one rim being bent away from
the other rim.
The above object is accomplished, according to this invention, by making the
rim of the lid double with a space between the two members thereof to receive
the rim of the body the flange or slight projection around the upper edge of the
lid being formed as an outwardly bent portion of the two thicknesses of metal
which form the two members of the double rim. The rim of the body and one
member of the double rim are each formed with a lead or inclination, as in the
method heretofore practised, to ensure that they will fit tightly the one around
the other, and the two members of the double rim are so near to-gether at their
upper portions that, when the lid is pressed tightly down, the edge of the single
rim will wedge itself tightly between the two members of the double rim.
The entire lid is made, preferably, in one piece of metal. The inner member of
the double rim stands upwards from the flat or main surface of the lid; the flange

page_text: or projection around the upper edge of the lid consists of a portion of the metal
which is bent to the required shape in section and joins to-gether the upper
portions of the two members of the rim, the outer member of the rim running
downwards from around the inner side of the under portion of the bent metal
forming the flange or projection.
Improvements in Cannisters for the Purpose of Ensuring a More
Secure Fit between the Lids and Bodies thereof.
We, NEVILLE HANBURY MANDER, of the Firm of Mander Brothers, of Saint
John's Street, Wolverhampton, in the County of Stafford, Varnish and Colour
Manufacturers, and ARTHUR SHIRLEY, of the same address, Foreman in the em-
ployment of the said Firm, 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:-
to
This invention relates to the type of cannister now in common use for holding
varnishes, paints, colours, and other substances which do not require
be contained in hermetically sealed vessels, in which the rims of the mouths are
each formed around the inner edge of an inward flange which is a short distance
inwards from the upper edge of the body, and in which the lids are each formed
with a flange or slight projection around its upper edge, so that by using the
upper edge of a body as a fulcrum a coin or other piece of metal may be used
as a lever to press up against the underside of the flange or projection around the
lid and thus prize the lid open.
Heretofore it has been usual, in this type of cannister, to fit a body and lid together
by simply pressing a rim of the lid sometimes around and sometimes within a rim
formed around the mouth of the body. The inner rim, however, is unsupported against
any tendency to bend inwards under any strain to which the cannister may be exposed,
and thus the joint between the lid and body is liable to become leaky.
cases, it is found necessary to secure the joint by running glue or cement into
the annular groove formed between the rim of the lid or mouth, as the case
may be, and the portion of the body which extends upwards from the inward
flange, aforesaid.
In some
Now, this invention has for its object to fit together the lid and body of a
cannister of the above type in a manner which will ensure a thoroughly good
fit all round and securely prevent any part of one rim being bent away from
the other rim.
The above object is accomplished according to this invention, in a manner
which in effect combines the methods above described of fitting together the lid
and body, that is to say, by forming the lid with a part to fit around and a part
to fit within the rim of the mouth of the body. A groove or recess is formed in
the lid into which the upper edge of the rim of the body fits when the lid is in
place.
In order that the invention may be clearly understood, we will now proceed to

page_text: describe a practical application of the same by the aid of the accompanying
drawings, of which Figure 1 is a vertical section taken through the centre of the
upper portion of a cannister, shewing the body and lid detached from one another.
Figure 2 is a corresponding view to Figure 1, but shews the lid in place upon
the body; and Figure 3 is a view, to an enlarged size, shewing a section through
one side of the joint between the body and lid. Certain portions in some of
the views are drawn rather conventionally than accurately, to render them quite
distinct; and in Figure 3 only those parts are shewn which appear in the plane
of the section.
The body A of the cannister has the mouth a thereof surrounded, as is usual,
with an upwardly extending rim b. The lid B is formed with a groove c into which
the upper portion of the rim 6 fits when the lid is in place upon the body. The
inner side of the groove is formed preferably by the periphery of a bung d which
is formed by pressing down the metal of the lid, and the outer side of the groove is
formed by the downward flange e which extends, also, preferably a considerable
distance below the bottom of the groove as shewn. The outward flange or pro-
jection around the top of the lid is conveniently formed, as shewn, of a double
thickness of the metal, of which the inner edge of the upper thickness joins into
the upper edge of the rim of the bung d, and of which the inner edge of the
lower thickness joins into the upper edge of the downward portion e, the outer
edges of the two thicknesses joining into one another. The lid may thus be
made, as is much preferred. in one piece of sheet metal. For convenience in
fitting the body and lid together, the rim 6 of the body and portion e of the lid
are formed with a lead. The groove c narrows inwards, and the upper edge of
the rim b wedges itself tightly therein as the lid is pressed down upon the body.
The joint between the lid and body is thus thoroughly tight, and, moreover, is of
a character as will be obvious which tends to securely prevent the rim of the body
and the portion e of the lid from being hent, and thus liability of the cannister
becoming leaky, even though subjected to rough usage, is avoided or minimised.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, we declare that what
we claim is:--
1. A cannister, of the type above defined, having the lid formed with a part
to fit around and a part to fit within the rim of the mouth of the body, sub-
stantially as described.
2. A cannister, of the type above defined, having a groove formed in the lid
to receive the rim of the mouth of the body, such groove being formed lessening
in width inwardly so that the rim of the mouth of the body will securely tighten
itself between the two sides of the groove as the lid is pressed down thereupon,
substantially as described.
3. A cannister, of the type above defined, having a groove formed in the lid
into which the rim of the mouth of the body fits, such groove being formed
between the periphery of a bung which fits within the rim of the mouth of the
body and a rim or flange which fits around the outside of the rim of the mouth
of the body, substantially as described.
4. A cannister, of the type above defined, having a lid formed in a single piece
of sheet metal with a groove into which the rim of the mouth of the body fits
which is formed between the periphery of a bung which fits within the rim of the
mouth of the body and a rim or flange which fits around the outside of the rim
of the mouth of the body, and having the flange or projection around the upper
edge of the rim formed of a double thickness of metal, substantially as described
and shewn by the drawings herewith.
5. A cannister of the type above defined, having a groove formed in the lid
into which the rim of the mouth of the body fits, the metal of the outer side of

page_text: such groove being continued downwards for some distance below the bottom
thereof, substantially as described.
6. A cannister having its lid fitted to the body substantially in the manner
described.
Dotad thi. 17th
ea
1000
STEPHEN WATKINS,
Wolverhampton, Agent for the Applicants.