AN IMPROVED PROCESS OF UNITING TIN AND TERNE PLATES OR SHEETS
Year: 1876

page_text: "
LETTERS PATENT to Elisha Smith and Henry Nash, both of Liverpool, in the
County of Lancaster, for the Invention of AN IMPROVED PROCESS OF
UNITING TIN AND TERNE PLATES OR SHEETS."
Sealed the 21st October 1876, and dated the 27th April 1876.
PROVISIONAL SPECIFICATION left by the said Elisha Smith and Henry
Nash at the Office of the Commissioners of Patents on the 27th April 1876.
ELISHA SMITH and HENRY NASH, both of Liverpool, in the County of Lancaster.
"AN IMPROVED PROCESS OF UNITING TIN AND TERNE PLATES OR SHEETS."
This Invention relates to an improved process of uniting or connecting together
the well known commercial article of tin or terne plates or sheets; and it consists
in first connecting the plates mechanically and then completing the joint by the
application of heat and without the use of solder or of additional metal.
In carrying out our Invention we connect the plates or sheets together in. the
usual manner by linking, grooving, rivetting or otherwise, so as to form a con-
tinuous sheet, which we then immerse in or pass through a bath of palm oil, grease,
or other suitable material having analogous properties, and heated to a point which
will cause such a fusion of the surfaces of metal within the folded joint as will suffice
to effect the intimate union of the plates and form a hermetically closed joint. Or
in lieu of passing the continuous sheet through this bath we may simply pass it
through a hot air chamber brought to a suitable heat.
Although we may accomplish this without the use of rolls, we prefer to assist
the uniting of the surfaces within the joint by passing the continuous sheet between
one or more pairs of rolls or to otherwise compress the joint, either in the palm oil
or grease or within the heated chamber; or this pressure may be applied after the
plates or sheets have passed through the bath or through the heated chamber, but
while still in a heated state. Should the plates or sheets be bare of metal within
the joint or a difficulty be found in causing the plates to unite perfectly within the
joint, rosin or other material having affinity for the metal may be used and placed
within the joint when the plates are being locked together preparatory to their -
immersion or entering the hot air chamber, or they may be passed through such
material in solution or in a molten state.
We do not limit ourselves to any particular coating or alloy, nor confine our-
selves to iron or steel as the basis of the plates which we propose to treat as above
described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by the
said Elisha Smith and Henry Nash in the Great Seal Patent Office on the
25th October 1876.
ELISHA SMITH and HENRY NASH, both of Liverpool, in the County of Lancaster.
"AN IMPROVED PROCESS OF UNITING TIN AND TERNE PLATES OR SHEETS."
Our Invention relates to an improved process of uniting or connecting together
the well known commercial article of tin or terne plates or shects; and it consists
in first connecting the plates mechanically, and then completing the joint by the
application of heat and without the use of solder or of additional metal.
In carrying out our Invention we connect the plates or sheets together in the
usual manner by linking, grooving, rivetting or otherwise, so as to form a con-
tinuous sheet, which we then immerse in or pass through a bath of palm oil,
grease, or other suitable material having analogous properties, and heated to a point
which will cause such a fusion of the surfaces of metal within the folded joint
as will suffice to effect the intimate union of the plates and form a hermetically
closed joint. Or in lieu of passing the continuous sheet through this bath we may
simply pass it through a hot air chamber brought to a suitable heat.
Although we may accomplish this without the use of rolls, we prefer to assist the
uniting of the surfaces within the joint by passing the continuous sheet between
one or more pairs of rolls, or to otherwise compress the joint, either in the palm oil
or grease, or within the heated chamber; or this pressure may be applied after
the plates or sheets have passed through the bath or through the heated chamber,
but while still in a heated state. Should the plates or sheets be bare of metal
within the joint, or a difficulty be found in causing the plates to unite perfectly
within the joint, rosin or other material having affinity for the metal may be used
and placed within the joint when the plates are being locked together preparatory
to their immersion or entering the hot air chamber, or they may be passed through
such material in solution or in a molten state.
Having now described the nature of our said Invention, and in what manner
the same is or may be performed, we would have it understood that we do not limit
ourselves to any particular coating or alloy, nor confine ourselves to iron or steel
as the basis of the plates which we propose to treat as above described, and that
what we claim as of our Invention, and secured to us by the herein-before in part
recited Letters Patent, is the process of uniting tin and terne plates or sheets
without the use of solder, or of additional metal, by first mechanically connecting
the plates or sheets, and then completing the joint by the application of heat,
substantially as described, and with or without pressure.
In witness whereof, I, the said Elisha Smith, have hereunto set my hand and
scal, this Twenty-third day of October, in the year of our Lord One thousand
eight hundred and seventy-six.
ELISHA SMITH. (L.S.)