IMPROVEMENTS IN CONNECTING TOGETHER PARTS OF VESSELS FORMED OF TIN PLATE, AND IN THE MEANS OR APPARATUS EMPLOYED THEREIN
Year: 1862

page_text: LETTERS PATENT to Alexander Forbes, of Canal Terrace, Aberdeen, for
the Invention of "IMPROVEMENTS IN CONNECTING TOGETHER PARTS OF
VESSELS FORMED OF TIN PLATE, AND IN THE MEANS OR APPARATUS EMPLOYED
THEREIN."
Sealed the 6th April 1863, and dated the 7th October 1862.
PROVISIONAL SPECIFICATION left by the said Alexander Forbes at the
Office of the Commissioners of Patents, with his Petition, on the 7th
October 1862.
I, ALEXANDER FORBES, of Canal Terrace, Aberdeen, do hereby declare the
nature of the said Invention for "IMPROVEMENTS IN CONNECTING TOGETHER PARTS
OF VESSELS FORMED OF TIN PLATE, AND IN THE MEANS OR APPARATUS EMPLOYED
THEREIN," to be as follows:-
The object of the improvements is to facilitate the connecting together of
the top and bottom plates or covers to the bodies of cans for holding preserved
provisions, as also of similar parts of vessels formed of tin plate for
other uses.
I form the outer end or edge of the body of the can or other vessel, or that
part to receive a cover, somewhat enlarged or of a socket form and bell'
mouthed by swageing or otherwise, and I form the top or bottom (as the case-
may be) with a turned up edge somewhat bell shaped or inclining outwards so
that its outer edge when pressed into the socket of the body may press close to
the inside thereof, and leave a groove or channel above for solder. The

page_text: solder I apply in or over this channel in a ring or other form adapted to the
shape of the vessel, adding resin or other suitable flux to facilitate union of
the parts on the application of heat thereto, and I apply the heat to the whole
of such surface by means of a heated metal ring or frame, with a groove
therein adapted to one part of it embracing the whole of the side surface and
the other the top edge of the parts to be connected. And to avoid interfering
with the soldering already effected of the parts of the body near the top or
bottom by the heat of such ring or frame, I cut a notch or groove in the ring
or frame at such part. Rings or frames thus formed may have handles so as
to be readily removed from the furnace or other heating means for use, or they
may be hinged to a stove or other heating means, or have jets of gas applied
to them.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Alexander Forbes in the Great Seal Patent Office on
the 7th April 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, ALEXANDER
FORBES, of Canal Terrace, Aberdeen, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Seventh day of October, in the year of our Lord
One thousand eight hundred and sixty-two, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto me, the
said Alexander Forbes, Her special licence that I, the said Alexander Forbes, my
executors, administrators, and assigns, or such others as I, the said Alexander
Forbes, my executors, administrators, and assigns, should at any time agree
with, and no others, from time to time and at all times thereafter during the
term therein expressed, should and lawfully might make, use, exercise, and
vend, within the United Kingdom of Great Britain and Ireland, the Channel
Islands, and Isle of Man, an Invention for "IMPROVEMENTS IN CONNECTING
TOGETHER PARTS OF VESSELS FORMED OF TIN PLATE, AND IN THE MEANS OR
APPARATUS EMPLOYED THEREIN," upon the condition (amongst others) that
I, the said Alexander Forbes, my executors or administrators, by an instru-
ment in writing under my, or their, or one of their hands and seals, should
particularly describe and ascertain the nature of the said Invention, and
in what manner the same was to be performed, and cause the same to
be filed in the Great Seal Patent Office within six calendar months next
and immediately after the date of the said Letters Patent.

page_text: NOW KNOW YE, that I, the said Alexander Forbes, do hereby declare the
nature of the said Invention, and in what manner the same is to be per-
formed, to be particularly described and ascertained in and by the following
statement thereof, that is to say:-
The object of the improvements is to facilitate the connecting together of
the top and bottom plates or covers to the bodies of cans for holding preserved
provisions, as also of similar parts of vessels formed of tin plate for
other uses.
I form the outer end or edge of the body of the can or other vessel, or that
part to receive a cover, somewhat enlarged or of a socket form and bell-mouthed
by swageing or otherwise, and I form the top or bottom (as the case may be)
with a turned up edge somewhat bell-shaped or inclining outwards, so that
its outer edge, when pressed into the socket of the body may press close to the
inside thereof, and leave a groove or channel above for solder. The solder I
apply in or over this channel in a ring or other form adapted to the shape of
the vessel, adding resin or other suitable flux to facilitate union of the parts on
the application of heat thereto; and then in place of a soldering iron I apply.
the-heat to the whole-of-such surface by means of a heated metal ring or frame,
with a groove therein adapted to one part of it embracing the whole of the side
surface and the other the top edge of the parts to be connected. And to
avoid interfering with the soldering already effected of the parts of the body.
near the top or bottom by the heat of such ring or frame, I cut a notch or
groove in the ring or frame at such part, or I apply over such already soldered
part a small piece of paper.. Rings or frames thus formed may have handles
so as. to be readily removed from the furnace or other heating means for use,
or they may be hinged to a stove or other heating means, or have jets of gas
applied to them.
But that the nature of the improvements and means which I adopt in
carrying the same into effect may be better understood, I will proceed to
describe the Drawing annexed.
DESCRIPTION OF THE DRAWING.
Figure 1 shows a section, and Figure 2 a plan view of a vessel of tin or
tinned plate with the parts a, a, thereof adapted to receive suitably formed
tops or bottoms, one of which is shown separately by Figures 3 and 4,
Figure 3 being a section, and Figure 4 a plan of one of such parts, and it
will be seen that whilst the parts a, a, of the cylindrical or side surfaces of the
vessel are opened out or bell-mouthed at a¹, a¹, with a recess to receive the
edge of the top or bottom piece, the edge of the top or bottom piece b is

page_text: formed so that when pressed down into a 'bell mouth a', such edge b' will rest
in the recess, fitting it tightly.as indicated by the.separate section of the parts
together at. Figure 5, where it will be seen. that when the side surfaces and
top or bottom parts are thus put together-a groove will be left all round to
receive a ring of solder, as indicated by Figure 6. The parts thus arranged
are then placed so as to be subjected to the heat of apparatus according to my
improvements, as indicated by Figures 7, 8, and 9. Figure 7 shows an
under side view, and Figure 8 a side view of a metal ring adapted to embrace
by. the part g the whole of the side surface a³, and by the part h, the top edge.
of the parts of a cylindrical vessel a, and when such ring has been previously
heated by a charcoal or other suitable fire to the temperature desired the heat
thereof will melt the solder placed between the parts to effect their union!
Figure 9 shews a section of the iron, Figures 7 and 8, in position upon the side
surface and a top or bottom 6 (as the case may be), the parts of the can
being indicated by blue lines.
I would remark that although I have shewn the vessel in operation to be of
a cylindrical form, vessels produced according to these improvements may be
of a square or polygonal.or.other figure when the surrounding ring, Figures 7,
8, 9, will be of a corresponding figure.
Having, thus described the nature. of the said Invention and means which
I adopt in carrying the same into effect, I would have it understood that what
I claim is, the adaptation or combination of means for connecting together
parts of vessels formed of tin or tinned plate, and the means or apparatus
for soldering together such parts, substantially as explained.
In witness whereof, I, the said Alexander Forbes, have hereunto set my
hand and seal, this Thirtieth day of March, in the year of our Lord
One thousand eight hundred and sixty-three.