Improvements in the Process and Apparatus for Electrolytic Manufacture of Tubes, Pans, and other bodies of Circular Form.
Year: 1891

page_text: Date of Application, 15th Oct., 1891
Complete Specification Left, 13th July, 1892-Accepted, 15th Oct., 1892
PROVISIONAL SPECIFICATION.
Improvements in the Process and Apparatus for Electrolytic
Manufacture of Tubes, Pans, and other bodies of
Circular Form.
I, ALEXANDER STANLEY ELMORE, of The Laboratory, Thwaite Gate, Leeds,
in the County of York, Electrometallurgist, do hereby declare the nature of this
invention to be as follows:-
In the Specifications No. 4499 of 1885, No. 8707 of 1885, No. 10451 of 1885.
No. 9214 of 1886, No. 15831 of 1886, No. 16637 of 1887, No. 11778 of 1888,
No. 2618 of 1889, No. 17205 of 1889, No. 14624 of 1890 and No. 18896 of 1890,
are described means of manufacturing tubes, pans and other bodies of circular
section, of copper or other metal, by electrolytically depositing the metal on a
revolving mandril or core, and causing a burnishing tool to travel along the surface
of the metal while it is being deposited, thereby rendering the deposited metal
compact, Bound and strong. Means are also described of producing sheets, bars,
wires and the like by cutting them from cylinders or discs of the deposited
metal.
My present invention relates to a modification of the process and apparatus above
referred to, whereby I ensure greater soundness and more uniform strength and
ductility in all directions, of the deposited metal. For this purpose, I so arrange
the moving gear of the burnisher that instead of its following merely a helical line
along the surface of the deposited metal, it follows a line which is undulating as
well as helical, that is to say while it advances continuously, at the same time it
oscillates in a longitudinal direction.
+
The effect of this is to render the metal uniformly strong and ductile in the
longitudinal as well as in the transverse direction. The oscillation may be imparted
to the burnishing tool by a suitable crank, cam or eccentric revolving while it is
advancing along with the tool carrier; or the burnisher may be made to follow an
undulating line by longitudinally oscillating as well as rotating the mandril, while
the burnishing tool travels rectilineally.
Dated this 15th day of October 1891.
ABEL & IMRAY.
Agents for the Applicant.
- 41
COMPLETE SPECIFICATION.
Improvements in the Process and Apparatus for Electrolytic
Manufacture of Tubes, Pans, and other bodies of
Circular Form.
.
I, ALEXANDER STANLEY ELMORE, of The Laboratory, Thwaite Gate, Leeds,
in the County of York, Electrometallurgist, 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:-
In the Specifications No. 4499 of 1885 No. 8707 of 1885 No. 10451 of 1885,
No. 9214 of 1886, No. 15831 of 1886, No. 16637 of 1887, No. 11778 of 1888,
No. 2618 of 1889, No 17205 of 1889, No. 14624 of 1890 and No. 18896 of 1890
are described means of manufacturing tubes, pans and other bodies of circular
section of copper or other metal, by electrolytically depositing the metal on a
revolving mandril or core, and causing a burnishing tool to travel along the surface
Price RI

page_text: of the metal while it is being deposited, thereby rendering the deposited metal
compact, sound and strong. Means are also described of producing sheets, bars,
wires and the like by cutting them from cylinders or discs of the deposited metal.
My present invention relates to a modification of the process and apparatus above
referred to, whereby I ensure greater soundness and more uniform strength and
ductility in all directions of the deposited metal.
For this purpose, I so arrange the moving gear of the burnisher that instead of its
following merely a helical line along the surface of the deposited metal, it follows a
line which is undulating as well as helical, that is to say while it advances
continuously at the same time it oscillates in a longitudinal direction.
The effect of this is to render the metal uniformly strong and ductile in all
directions.
:
The oscillation may be imparted to the burnishing tool by a suitable crank, cam
or eccentric revolving while it is advancing along with the tool carrier; or the
burnisher may be made to follow an undulating line by longitudinally oscillating as
well as rotating the mandril, while the burnishing tool travels rectilineally
In my previous Specification No. 89186 of 1890 I described apparatus whereby
burnishers are caused to travel along a number of mandrils receiving electrolytic
deposit, these mandrils revolving in two parallel rows of tanks, but the burnishers
of all of them being moved from one set of gearing arranged over the first pair of
the two rows as shewn in Sheet 1 of the drawings accompanying the said
Specification. In carrying out my present invention, I modify this gearing as I
shall describe referring to the accompanying drawings.
Fig. 1 is a part plan, Fig. 2 is a part transverse section shewing the brackets
for the burnishers in elevation.
Fig. 3 is a side view of the traversing and oscillating gear and
Fig. 4 is a part side view of the mandril and oscillating burnisher.
B is the bed along which the slide O¹ is caused to travel to and fro by the
alternating forwards and backwards revolution of the screw spindle K, the slide O¹
carrying on each side arms O* which project over the electrolytic tanks and carry
the burnishing tools Q which are pressed against the deposited metal on the
mandrils M. When there are a number of pairs of tanks in a row, the slide O¹ is
rigidly connected to similar slides, one for each pair of tanks in the row, so that as
O with its arms O' moves to and fro, all the other slides with their arms also move to
and fro as described in the Specification above referred to. So far the gearing is
substantially the same as that described in the said Specification. The modifications
applied to that gearing for the purpose of giving oscillating movement to the
burnishing tools are as follow. Between the slide O' and a cheek O' a boss A
in which is formed a sunk cam path is caused to revolve with the screw spindle K,
this boss having a key sliding in a groove of the spindle; lever arms C C one on
each side, having rollers engaged in the cam groove of A, are caused to oscillate and
their oscillations are conveyed by connecting rods D to lever arms E on square
spindles F, mounted not only on the one pair of arms O but also on the similar
arms provided for the successive tanks of the row. On each spindle F at any part
of its length is fixed by a screw and nut a jointed socket through which passes a
rod H carrying the burnishing tool Q.
The socket G carries a rack R to any tooth of which is hooked an india rubber
band spring S which strains the rod H so as to push the burnisher Q against the
surface of the mandril M. The rod H can be adjusted higher or lower in the
socket G and clamped where required. Thus, as the screw spindle K revolves
causing the to and fro movement of the slides O¹ and their arms 0³, it also by
means of the cam A causes the spindle F to rock, and thus each burnisher Q not
only travels to and fro along with the slide O', but also oscillates in an arc of a
circle struck from the centre of F, and, as the mandril M is at the same time
revolving, the burnisher follows on its periphery an undulating helical path the
effect of which is that the metal deposited on the mandril has greater soundness and

page_text: more uniform strength and ductility in all directions than when the path of the
burnisher is simply helical.
Having now particularly described and ascertained the nature of this inven-
tion and in what manner the same is to be performed I declare that what I
claim is :-
1. In the process of electrolytically depositing on a revolving mandril a metallic
shell burnished as it is deposited, causing the burnishing tool to oscillate as it
travels along the mandril so as to follow an undulating helical path on the mandril,
substantially as and for the purpose herein set forth.
2. For causing the travel and oscillation of the burnisher above referred
apparatus substantially as described and illustrated by the accompanying drawings.
Dated this 13th day of July 1892.
ABEL & IMRAY,
Agents for the Applicant.