AN IMPROVED MODE OF CLOSING TIN VESSELS FOR PACKING BISCUITS AND OTHER PERISHABLE GOODS
Year: 1884

page_text: I ELLIS CARR of Drummond Road Bermondsey in the County of Surrey Biscuit
Manufacturer do hereby declare the nature of my Invention for "AN IMPROVED
MODE OF CLOSING TIN VESSELS FOR PACKING BISCUITS AND OTHER PERISHABLE
GOODS " to be as follows:
My. Invention relates to tin boxes or canisters which are used for packing
biscuits sweetmeats cakes and other articles which require to be preserved from
access of air.
The object of my Invention is to construct such tin boxes or canisters with an
air tight cover in addition to and within the ordinary lid. This air tight cover is
soldered onto or otherwise affixed to the said boxes or canisters in a similar way to
that in which the ordinary lids or covers are frequently soldered on, but this air
tight cover is constructed of such thin soft metal that it can be removed when it
is desired to open the tin vessel without the use of a
tin opener or any other
tool leaving the tin box after it has been opened in a fit condition to be used as a
perfect box with an uninjured lid or cover though no longer air tight. This
uninjured lid or cover being the second or exterior one.
"
-
"
I effect these objects by forming this air tight cover of a very thin sheet of lead
or capsule metal or a similar alloy as soft and readily torn as capsule metal which
I solder on to the tin vessel. This sheet of lead or alloy is so thin that it can be
punctured or perforated by pressure with the finger alone without the use of any
tool and that it can be torn off so as to leave the goods exposed by taking the
ruptured edges in the fingers.
I protect this thin cover from accidental injury before it is opened by putting
an ordinary lid or cover of tin plate outside it but I do not solder this ordinary
cover on as is usually done with tins for export and it can therefore be removed
and replaced so as to close the tin box again. This will not however be closed air
tight.
'
When desired I emboss or print or stamp or otherwise mark any suitable design
or pattern on the thin sheet lead.
I am aware that thin sheets of taggert tin and other sheets of hard metal have
been previously used for similar purposes, but sheets which have been so used
have been so much harder and tougher in character than the metal which I use,
that it has been impossible to open the boxes without the use of a knife or some
other cutting or piercing tool, whereas the metal which I use is so soft and easily
ruptured that no tool is necessary.

page_text: I, ELLIS CARR of Drummond Road Bermondsey in the County of Surrey Biscuit
Manufacturer do hereby declare the nature of my Invention for "AN IMPROVED
MODE OF CLOSING TIN VESSELS FOR PACKING BISCUITS AND OTHER PERISHABLE
GOODS" and in what manner the same is to be performed to be particularly
described and ascertained in and by the following statement :-
My Invention relates to tin boxes or canisters which are used for packing
biscuits sweetmeats cakes and other articles which require to be preserved from
access of air.
The object of my Invention is to construct such tin boxes or canisters with an
air tight cover in addition to and within the ordinary lid. This air tight cover is
soldered onto or otherwise affixed to the said boxes or canisters in a similar way
to that in which the ordinary lids or covers are frequently soldered on but this
air tight cover is constructed of such thin soft metal that it can be removed when
it is desired to open the tin vessel without the use of-a-"tin-opener"-or-any_other_
tool leaving the tin box after it has been opened in a fit condition to be used as a
perfect box with an uninjured lid or cover though no longer air tight. This
uninjured lid or cover being the second or exterior one.
I effect these objects by forming this air tight cover of a very thin sheet of lead
or capsule metal or a similar alloy as soft and readily torn as capsule metal which
I solder on to the tin vessel. This sheet of lead or alloy is so thin that it can be
punctured or perforated by pressure with the finger alone without the use of any
tool and that it can be torn off so as to leave the goods exposed by taking the
ruptured edges in the fingers.
I protect this thin cover from accidental injury before it is opened by putting
an ordinary lid or cover of tin plate outside it but I do not solder this ordinary
cover on as is usually done with tins for export and it can therefore be removed
and replaced so as to close the tin box again. This will not however be closed air
tight.
When desired I emboss or print or stamp or otherwise mark any suitable design
or pattern on the thin sheet lead.
I am aware that thin sheets of taggert tin and other sheets of bard metal have
been previously used for similar purposes but sheets which have been so used
have been so much harder and tougher in character than the metal which I use
that it has been impossible to open the boxes without the use of a knife or some
other cutting or piercing tool whereas the metal which I use is so soft and easily
ruptured that no tool is necessary.
In order that my said. Invention may be most fully understood and readily
carried into effect I will proceed to describe the Drawings hereunto annexed.
DESCRIPTION OF THE DRAWINGS.
Figure 1 is a side elevation and Figure 2 is an end elevation of the box as it
appears when the paper wrapper in which the box will usually be supplied to
the market is removed. The ordinary or outer lid is in place. Figure 3 is a
longitudinal section of the box with the inner cover and outer protecting lid.
Figure 4 is a side elevation and Figure 5 is a plan of the box as it appears when
the ordinary outer lid is removed and in these Figures also the inner cover is
shown partially, removed being torn and laid back in such manner as to partly
expose the contents of the box. Figure 6 shows greatly enlarged a section taken

page_text: vertically through the lid and the upper part of the box. This large scale is
adopted in order that the relative thicknesses positions and proportions of the
parts may be better appreciated.
a, a, is the body of the box, it is formed of tin plate and has an inwardly
projecting flange a¹, a¹, all around its upper edge. b is a thin but air tight sheet
of capsule metal soldered by its edges to the flange a¹. c is the outer lid closing
over the top of the box a and serving before the box is opened to protect the
soft inner cover b from injury and after the box has been opened and the inner
cover torn away to form an effectual cover although not an air tight closing to
the box.
Having now particularly described and ascertained the nature of my said
Invention and in what manner the same is to be performed I declare that what
I claim is
My improved mode of closing tin vessels for packing biscuits and other perishable
goods by means of an inner air tight cover of thin soft metal which may be easily
torn and an outer lid substantially as described.