IMPROVE- MENTS IN WELDING METALS, AND THE MANUFACTURE OF MATERIAL FOR THAT PURPOSE
Year: 1882

page_text: LETTERS PATENT to Charles Denton Abel, of No. 28, Southampton Buildings,
Chancery Lane, in the County of Middlesex, for an Invention of "IMPROVE-
MENTS IN WELDING METALS, AND THE MANUFACTURE OF MATERIAL FOR
THAT PURPOSE." A communication from abroad by Jules Laffitto of Paris,
France.
PROVISIONAL SPECIFICATION left by the said Charles Denton Abel at
the Office of the Commissioners of Patents on the 11th February 1882.
CHARLES DENTON ABEL of No. 28 Southampton Buildings Chancery Lane in
the County of Middlesex. "IMPROVEMENTS IN WELDING METALS AND THE
MANUFACTURE OF MATERIAL FOR THAT PURPOSE." [A communication from
abroad by Jules Laffitte, of Paris, France.]
In welding metals it is usual to apply to the surfaces that are to be united
fluxing material such as borax, but it is difficult in many cases to apply such
material with certainty or uniformity particularly when the surfaces to be united
are large or irregular. This Invention relatos to means of ensuring more complete
application of such material and of facilitating the welding operation and rendering
sound the union made by it. For this purpose the fluxing material such as borax
or sal-ammoniac is mixed with filings of the metal to be welded and is then
agglomerated under pressure into the form of a sheet which is placed between the
two pieces to be united, the whole is heated to the required degree and then
subjected to the blows or pressure for welding.
In carrying the Invention' into practice the fluxing material is melted and there
is dipped into it a sheet of paper, metal, or other suitablo material so as to become
coated therewith. This sheet is then passed between rollers to equalize the
conting, whereupon it is dusted over with the metal filings and it is then placed
in a muffle for softening the flux and making the filings adhere thereto. The
sheet is then again passed between rollers for equalizing, after which it is ready
for use. The sheet of paper or other material employed serves as a temporary
support for the layer of fluxing material, it may be dispensed with, however,
when only small surfaces have to be welded, the agglomerated flux and filings
being in that case formed into a sufficiently cohesive sheet by themselves.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Charles Denton Abel in the Great Seal Patent Office on the
1st August 1882.
CHARLES DENTON ABEL of No. 28 Southampton Buildings Chancery Lane in
the County of Middlesex. "IMPROVEMENTS IN WELDING METALS, AND the
MANUFACTURE OF MATERIAL FOR THAT PURPOSE." A communication from
abroad by Jules Laffitte, of Paris, France.
In welding metals it is usual to apply to the surfaces that are to be united
fluxing material such as borax or sal ammoniac in order to eliminato foreign
substances the presence of which prevents the formation of a perfect weld, but it
is difficult in many cases to apply such material with certainty or uniformity
particularly when the surfaces to be united are large or irregular or convex. This
Invention relates to means of ensuring more complete application of such material
and of facilitating the welding operation and rendering sound the union made by
it and consists mainly in forming the fluxing material into a flexible sheet,
whereby it can be applied perfectly to the entire surface to be welded, the sheet
adapting itself readily to the configuration of such surface. For this purpose the
fluxing Daterial such as borax or sal-ammoniac or both is mixed with filings
of the metal to be welded and is then agglomerated under pressure into the form
-of-a-sheet-which_is_placed between the two pieces to be united, the whole is
heated to the required degree and then subjected to the blows or pressure for
welding.
In carrying the Invention into practice the fluxing material is melted and there
is dipped into it a sheet of paper, metal or other suitable material so as to become
coated therewith. This sheet is then passed between rollers to equalize the
coating whereupon it is dusted over with the metal filings and it is then placed
in a muffle for softening the flux and making the filings adhere thereto. The
sheet is then again passed between rollers for equalising, after which it is ready
for use.
The sheet of paper or other material employed serves only as a temporary
support for the layer of fluxing material; it may be dispensed with however
when only small surfaces have to be welded, the agglomerated flux and filings
being in that case formed into a sufficiently cohesive sheet by themselves.
For welding together two pieces of iron or steel a portion of such a sheet is
placed between the surfaces to be welded which are then heated to the required
degree and welded together, thus obtaining a perfect union. The metal sheets
employed as support to the flux may consist partly of iron and partly of copper or
nickel, whereby the welding of cast iron with cast iron or with wrought iron or steel,
or of nickel with nickel can be effected. The welding may also be effected with
fusible metals at the time of casting. For this purpose the part of the metal
object to be united to the casting is covered with the said sheet of fluxing material,
which is introduced into the mould, previously heated if necessary, and the fluid
metal is then run in the ordinary manuer. The molten metal imparts the requisite
heat to the solid metal to be united thereto to effect a perfect union.
Having thus described the nature of the said Invention and in what manner
the same is to be performed as communicated to me by my foreign correspondent,
I claim:
The use for welding together metals, of a flexiblo sheet of agglomerated
fluxing material placed between the surfaces to be united, the said fluxing

page_text: material boing employed either with or without a supporting sheet of metal or
other material, substantially as described.
In witness whereof I the said Charles Denton Abel have hereunto set my
hand and seal this Seventeenth day of July in the year of our Lord One
thousand eight hundred and eighty-two.
CHAº, D, ABEL. (L.S.)
СНА, АБЕЦ