IMPROVEMENTS IN THE MANUFACTURE OF SHEETS AND PLATES OF TIN, ZINC, AND LEAD, AND ALLOYS OF THESE METALS
Year: 1881

page_text: LETTERS PATENT to Friedrich Hermann Felix Engel, Civil Engineer and
Patent Agent, in the City of Hamburg, Germany, for an Invention of
"IMPROVEMENTS IN THE MANUFACTURE OF SHEETS AND PLATES OF TIN,
ZINC, AND LEAD, AND ALLOYS OF THESE METALS." A communication from
the New York Hamburger Gummiwaaren Compagnie, of Hamburg, in the
German Empire.
PROVISIONAL SPECIFICATION left by the said Friedrich Hermann Felix
Engel at the Office of the Commissioners of Patents on the 16th March 1881.
FRIEDRICH HERMANN FELIX ENGEL, Civil Engineer and Patent Agent, in the
City of Hamburg, Germany. "IMPROVEMENTS IN THE MANUFACTURE OF SHEETS
AND PLATES OF TIN, ZINC, AND LEAD, AND ALLOYS OF THESE METALS." A com-
munication from the New York Hamburger Gummiwaaren Compagnie, of
Hamburg, in the German Empire.
This mode of manufacture of sheets and plates of tin, zinc, and lead, and alloys
of these metals, consists of bringing the metal in molten state on to or between a
pair of revolving rollers. If the rollers are made of sufficient diameter and be cooled
off by a flow of water or by leading currents of cold air through the interior, sheets
of metal of any desired thickness may be produced by directly rolling the same out
of the molten metal.
It is preferred to place the rollers, which are made of iron or steel, horizontally
one beside the other in a framework. The bearings must be made adjustable to
secure the exact distance required for rolling sheets of metal of certain thickness.
The axles of the rollers are in communication by gear of cog wheels fastened to
same in a similar manner as the rollers of a rolling mill for rolling iron or steel.
The diameter of the rollers and the number of revolutions given to same varies
and depends on the melting point and degree of hardness of the corresponding
metal.
For producing plates of metal after this process the rollers must first be placed
close together to produce a sheet of metal, and the distance between the rollers
must during the rolling only gradually be enlarged as far as to correspond to the
required thickness of plate. After the plate has arrived at the desired thickness
the process of rolling may be carried on in continual action.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Friedrich Hermann Felix Engel in the Great Seal Patent Office
on the 16th September 1881.
FRIEDRICH HERMANN FELIX ENGEL, Civil Engineer and Patent Agent, in the
City of Hamburg, Germany. "IMPROVEMENTS IN THE MANUFACTURE OF SHEETS
AND PLATES OF TIN, ZINC, AND LEAD, AND ALLOYS OF THESE METALS." A com-
munication from the New York Hamburger Gummiwaaren Compagnie, of
Hamburg, in the German Empire.
This Invention relates to certain improvements in the manufacture of sheets and
plates of tin, zinc, and lead, and alloys of these metals.
This mode of manufacture of sheets and plates of tin, zinc, and lead, and alloys
of these metals, consists of bringing the metal in a molten state on to or between a
pair of revolving rollers. If the rollers be made of sufficient diameter and be
cooled off by a flow of water or by leading currents of cold air through the interior,
sheets of metal of any desired thickness may be produced by directly rolling the
same out of the molten metal.
.
It is preferred to place the rollers, which are made of iron or steel, horizontally
one beside the other in a frame work. The bearings of either one or both rollers
must be made adjustable to secure the exact distance required for rolling shoet
metal of certain thickness. The axles of the rollers are in communication by a gear
of cog-wheels fastened to same in a similar manner as to the rollers of a rolling mill
for rolling iron or steel. The diameter of the rollers and the number of revolutions
given the same varies and depends on the melting point and the degree of hardness
of the corresponding metal to be treated.
For producing plates of metal according to this process the rollers must first be
placed nearly close together so as to produce sheet metal, and the distance between
the rollers must during the rolling only gradually be enlarged so far as to
correspond to the required thickness of plate to be produced. After the plate has
arrived at the desired thickness the process of rolling can be carried on in continual
action.
The metal may be directly poured on to the rollers or be led on to the rollers
through a pipe, duct, or channel from the melting stove or pouring pot.
If the surface of one or of both rollers is or are engraved or etched with ornamen-
tation or designs, sheet metal and plates with ornamented surface or surfaces can be
produced according to this Invention by directly rolling such sheets or plates out of
the molten metal as described.
Having now described the nature and particulars of the said Invention in such
wise that the same may be readily carried into practical effect, I claim,―
The production of sheet metal and metal plates with smooth or with ornamented
surface out of tin, zinc, and lead, and alloys of these metals by bringing the metal
or alloy in the molten state on to a pair of revolving rollers, the distance of which
apart is adjustable, substantially in the manner and for the purpose herein
specified.
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