An Improvement connected with Preserve Tins.
Year: 1896

page_text: Date of Application, 19th May, 1896-Accepted, 22nd Aug., 1896
COMPLETE SPECIFICATION.
An Improvement connected with Preserve Tins.
I, ARCHIBALD WHITE MACONOCHIE, of 131 Leadenhall Street, in the City
of London, Provision Merchant, 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 :-
This invention relates to means and appliances in connection with tin boxes, cases,
or the like (in which food or food products are enclosed and hermetically sealed)
in order that said boxes can be readily opened by a pull on a projecting strip of
metal which is a portion of the body and capable of being torn away to set the lid
or cover free.
To enable my invention to be made more clear, I stamp or otherwise form a line
indent near the upper edge for the full length or nearly so of a sheet of tin from
which the body of a box has to be produced, a part of the sheet at one end being
also of greater length to form a projecting lip or extension in or to which a ring or
other device can be secured as a hand or finger pull which will tear the upper part
of the body away from the lid said part being soldered to it, whereby the lid is
free to be folded up or removed. In practice the lid need only be freed from one
portion of the side where the meeting edges of the tin are and from the three other
sides, the lid being then lifted and folded back on the other portion of the seamed
side as on a hinged joint to enable the contents to be slid out or otherwise
removed.
The invention will be more particularly understood by an inspection of the
accompanying drawings in which
Figure 1 is an elevation of a sheet of tin plate with a bead along the upper part
and with a projecting end.
Figure 2 perspective elevation of box complete and with a ring secured in the
looped end of the projecting or pull lip.
Figure 3 similar elevation showing how the top of the box body is torn away to
free the lid when the box has to be opened.
A, is the metal to form or forming the body of the "tin." B, the bead or line
indent near one edge. C, the lip projecting from the upper part at one end. The
lid D is placed in and soldered to render the seam airtight to preserve the contents,
the lip C being left outside ready for a pull to open the box which is effected by
tearing the part marked E of the body away along the bead or indent line B,
which pull also tears the part E from the solder of the lid and leaves the
lid D free.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. Constructing metal preserve tins in such manner that by a direct pull on a
projecting lip forming part of the body that portion surrounding the lid is torn
away and the lid freed, as and for the purpose set forth.

page_text: 2. Constructing metal preserve tins bodies with a bead indent and with an
extension, the bead forming the severance line of the body when the extension is
pulled, as specified.
Dated this 10th dox of Nov 1806
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said A. W. Maconochie.
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said A. W. Maconochie.

page_text: Date of Application, 19th May, 1896-Accepted, 22nd Aug.. 1896
Improvements connected with Preserve Tins.
I, ARCHIBALD WHITE MACONOCHIE, of 131 Leadenhall Street, in the City of
London, Provision Merchant, 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 :-
This invention relates to means and appliances in connection with tin boxes,
cases, or the like (in which food or food products are enclosed and hermetically
sealed) in order that said boxes can be readily opened by a pull on a projecting
strip of metal, so that a portion of the body may be torn away by an attached strip,
the greater portion of which strip is within an overlap of the body of the tin or box
but which overlap remains with the lid when a corresponding width and length of
the body of the tin as that of the strip is torn away.
According to this invention, I punch a slot near the upper corner at one end of
the body and draw a strip of metal through for nearly its full length and solder the
end down, I also solder the slot portion and leave the part between the solderings
free; the top edge of the body above the strip is folded over upon the strip as an
overlap. The box body is now made up in the usual way and the bottom inserted
and soldered. The lid is also prepared in the usual manner, and when the box is
charged, the lid is put in place and also soldered at the seam, the contents being
thus hermetically sealed.
The projecting end of the strip I prefer to provide with a ring or other appliance
by which it can be pulled round the box when the opening has to be effected, and
to give stiffness at that end I purpose folding the end of the strip first upon itself
and then to loop the ring or other appliance in a second fold and solder the
meeting parts.
The invention will be more particularly understood by an inspection of the
accompanying drawings in which
Figure 1 represents a width of tin plate with the slot and the strip passed through
and soldered as explained.
Figure 2 a similar view with the top edge folded over the strip in close contact
but not soldered.
Figure 3 top edge elevation of same.
Figure 4 perspective elevation of box or "tin" made up.
Figure 5 elevation of box or "tin" with the strip partially torn away,
the pull
also tearing away a corresponding portion of the body of the box and leaving the
overlap with the lid behind.
Figure 6 part section of a "tin" this view showing the enclosed position of the
strip with the lid in place and soldered home.
A is piece of tin plate. B, the bead or line indent. C the slot through which
the strip D has been passed and which is soldered as indicated by the dots, the end
of the strip D being also soldered at the further end to the plate A, as is also
indicated by dots, the upper part E in this case forms an overlap when folded down
as at Figure 2 for covering the strip as shown by the dotted lines in Figure 3.
The lid E is also soldered at the seam as by the dots G, Figure 6. K, is a ring
on the folded end of the strip D, the fold being preferably double, as at L,
for ensuring great strength at a part most liable to fracture from careless handling
when being opened.

page_text: Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. Providing metal preserve tins bodies with a part inserted strip secured thereto,
covering same by an overlap, which overlap when the body of the tin be torn away
by a pull on the strip remains with the lid, as described.
2. In metal preserve tins, a strip of metal from within the body for severing a
strip portion of the body to free the lid, another portion of the body remaining with
the lid, as described with reference to the figures shown on the accompanying
drawings.
Dated this: 10th day of Now 1806
H. GARDNER,
Patent Agent, 166 Fleet Street, London,
Agent for the said A. W. Maconochie.