IMPROVEMENTS IN THE MANUFACTURE OF ROLLERS FOR PRINTING, DYEING, EMBOSSING, AND OTHER LIKE PURPOSES
Year: 1880

page_text: LETTERS PATENT to Joseph Julius Sachs, of Manchester, in the County of
Lancaster, for an Invention of "IMPROVEMENTS IN THE MANUFACTURE OF
ROLLERS FOR PRINTING, DYEING, EMBOSSING, AND OTHER LIKE PURPOSES."
PROVISIONAL SPECIFICATION left by the said Joseph Julius Sachs at
the Office of the Commissioners of Patents on the 5th May 1880.
JOSEPH JULIUS SACHS, of Manchester, in the County of Lancaster.
"IMPROVEMENTS IN THE MANUFACTURE OF ROLLERS FOR PRINTING, DYEING,
EMBOSSING, AND OTHER LIKE PURPOSES."
This Invention relates to the manufacture or preparation of rollers to take the
place of the copper or brass rollers now used for printing, dyeing, embossing, and
other like purposes.
In carrying out my Invention, I first form a roller of copper or brass in the form
of a tube, and fill up the centre of such tube by casting therein, upon a suitable
mandril or in any other convenient method, Spence's metal, or other metal of a like
nature, which on cooling expands, and forms with the copper outer surface or tube
a homogeneous roller. This interior casting may be carried out in any convenient
manner, so as to render the whole roller suitable for the purposes for which such
roller is intended. When desired, the interior of the roller or tube may be readily
melted out, so as to leave the copper surface uninjured, the melting point of the
metal or other interior composition being much lower than that of the exterior
copper or brass.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Joseph Julius Sachs in the Great Seal Patent Office on the
5th November 1880.
JOSEPH JULIUS SACHS, of Manchester, in the County of Lancaster.
"IMPROVEMENTS IN THE MANUFACTURE OF ROLLERS FOR PRINTING, DYEING,
EMBOSSING, AND OTHER LIKE PURPOSES."
My said Invention relates to the manufacture of rollers to be employed in
substitution for the copper or brass rollers now used for printing, dyeing,
embossing, and other like purposes.
In carrying out my said Invention, I first form a roller of copper or brass or
other suitable material in the form of a tube, and I then fill up the centre of such
tube by casting therein, either around a suitable core or mandril, or in any other
convenient manner, what is known as Spence's metal, the said metal consisting of
metallic sulphides ground to an impalpable powder and combined by suitable
mechanical means with sulphur, while the latter is at a melting point; or I cast into
the said tube any other metal or composition of a like nature to Spence's metal.
The metal or composition on cooling expands and forms with the copper or brass or
other outer surface or tube a homogeneous roller. The casting of the internal
portion may be carried out in any convenient manner, so as to render the whole
roller suitable for the purposes for which such roller is intended. When desired,
the interior of the roller or tube may be readily melted out, so as to leave the
copper, brass, or other surface uninjured, the melting point of the interior metal or
composition being much lower than that of the exterior copper or brass.
Having now described and particularly ascertained the nature of my said
Invention, and the manner in which the same is or may be used or carried into
effect, I would observe in conclusion that what I consider to be novel and original,
and therefore claim as the Invention secured to me by the hereinbefore in part
recited Letters Patent is,-
The manufacture of rollers for printing, dyeing, embossing, and other like
purposes, by casting Spence's metal, or other metal or composition of a like nature,
in a tube of copper, brass, or other suitable material, substantially as hereinbefore
described.
In witness whereof, I, the said Joseph Julius Sachs, have to this my
Specification, set my hand and seal, this Fourth day of November, One
thousand eight hundred and eighty.
JOSEPH JULIUS SACHS. (L.S.)