Year: 1887

page_text: Date of Application, 31st Jan., 1887
Complete Left, 31st Oct., 1887
Complete Accepted, 2nd Dec., 1887
1, FREDERICK MADELEY, of Oxhill, Handsworth, in the County of Stafford,
Manufacturer and Merchant, do hereby declare the nature of this invention to be as
follows:-
My invention has reference to a new or improved manufacture of metallic covered.
or coated tubes, without brazed, welded or other joints. Such a tube according to my
invention is produced as I will now explain.
A strip of soft steel of a suitable width and thickness is turned up into a skelp or
tube by any known or suitable method; it may be by passing through a bell or die
or by one of the methods of rolling or folding, care being taken to make the junction
of the two edges as close as possible.
This skelp or close jointed tube is then polished by means of revolving emery bobs
or wheels, and felt or wooden bobs or wheels dressed with dry emery or with a
mixture of emery and oil, and in cases where a very perfect surface is required the
process of polishing may be finished in a machine of the kind described in the
specification of a former patent granted to Mr. Edward Flint and myself, dated
21 October 1844, and numbered 13950.
The polishing having been completed and the joint made quite close, the tube is
subjected to the action of a cyanide of copper plating solution acted upon by
batteries or by a dynamo electric machine, whereby the exterior of the tube
becomes coated with a film of copper; thereafter it is subjected to the action of a
cyanide brass plating solution whereby there is placed upon it a sufficient scale of
brass but where an extra thickness of casing is required the tube is subjected
intermediately-i.e. prior to its immersion in the brass solution-to the action of a
sulphate of copper bath.

page_text: I complete my tube when requisite by polishing it either (as is frequently done) by
listing or by means of revolving felt bobs or mops and leather cotton or woollen mops,
or mops made of other suitable materials, and finally lacquering it by an ordinary or
suitable process.
By my invention I am enabled to produce a metallic coated or covered tube with
what is known in the trade, as a close joint, thereby dispensing with the practice
of soldering or brazing-welding-or covering such tube with a sheet of metal either
brazed, soldered, or with an enfolded joint.

page_text: I, FREDERICK MADELEY, of Oxhill Handsworth, in the County of Stafford,
Manufacturer and Merchant do hereby declare the nature of this invention, and in
what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:-
My invention has reference to a new or improved manufacture of metallic covered
or coated tubes, without brazed, welded or other joints. Such a tabe according to my
invention is produced as I will now explain.
A strip of soft steel of a suitable width and thickness is turned up into a skelp or
tube by any known or suitable method; it may be by passing through a bell or die,
or by one of the methods of rolling or folding, care being taken to make the junction
of the two edges as close as possible.
This skelp or close jointed tube is then polished by means of revolving emery bobs or
wheels and felt, or wooden bobs or wheels dressed with dry emery, or with a mixture
of emery and oil, or grindstones, and in cases where a very perfect surface is required
the process of polishing may be finished in a machine of the kind described in the
specification of a former patent granted to Mr. Edward Flint and myself dated
21 October 1884, and numbered 13950.
The polishing having been completed and the joint made quite close, the tube is
subjected to the action of a cyanide of copper plating solution acted upon by batteries
or by a dynamo electric machine, whereby the exterior of the tube becomes coated
with a film of copper, thereafter it is subjected to the action of a cyanide brass
plating solution whereby there is placed upon it a sufficient scale of brass but
where an extra thickness of casing is required the tube is subjected intermediately-
i.e. prior to its immersion in the brass solution to the action of a sulphate of copper
bath.
I complete my tube when requisite by polishing it either (as is frequently done) by
listing or by means of revolving felt bobs or mops, and leather, cotton, or woollen
mops, or mops made of other suitable materials, and finally lacquering it by an
ordinary or suitable process.
By my invention I am enabled to produce a metallic coated or coverd tube with
what is known in the trade, as a close joint, thereby dispensing with the practice
of soldering or brazing-welding-or covering such tube with a sheet of metal
either brazed, soldered or with an enfolded joint."

page_text: Having now particularly described and ascertained the nature of this invention
and in what manner the same is to be performed, I declare that what I claim is :-
1. The manufacture of metallic covered or coated tubes substantially in the
manner hereinabove described.
2. A metallic coated or covered tube with "close joint" substantially as described.
D1: 011 1