Improvements in Apparatus for Coiling and Soldering Metallic Tape or Wire on Copper or other Pipes.
Year: 1896

page_text: Date of Application, 29th Feb., 1896
Complete Specification Left, 30th Nov., 1896-Accepted, 13th Feb., 1897
PROVISIONAL SPECIFICATION.
Improvements in Apparatus for Coiling and Soldering Metallic
Tape or Wire on Copper or other Pipes.
We, ROBERT DANIEL SMILLIE, Engineer, 80 Mains Street, and JoHN ROBERT
BIRD, Engineer, 10 Morrison Street, both in the City of Glasgow, do hereby declare
the nature of this invention to be as follows:-
This invention relates to apparatus for coiling and soldering metallic tape or wire
on copper or other pipes for the purpose of strengthening them, and it comprises
improved arrangements and combinations of devices by means of which the tape or
wire which is usually made of iron or steel is coiled around the pipe under suitable
tension by rotating the pipe whilst partially immersed in a bath of molten metal or
alloy maintained at proper temperature by furnace heat, or outwith the bath as may
be desired, the wire being led on to the pipe by means of guiding and stenting
devices designed and operated to ensure the coiling of the tape or wire in a more or
less close helical coil.
The bath containing the molten alloy by means of which the metallic tape or wire
is soldered or caused to adhere to the pipe, is made in the form of a long concave
trough adapted for the reception of the largest size of piping to be operated on, and
it is supported over a furnace or heating chamber, preferably so as to form the crown
of the furnace. An auxiliary trough is or may also be provided alongside and in
communication with the main bath to serve either for maintaining the supply of
alloy to the main bath or as an overflow for it, this auxiliary trough being also
heated by the furnace. The pipe to be covered by the tape or wire is supported in
or over the bath by means of a mandrel or shait having on it dises fitting into
the ends of the pipe and serving to carry the pipe and if desired to exclude the
molten alloy from the inside of the pipo. One end of the mandrel is coupled to a
driving spindle in line with it by any suitable means such as hy a square adapted to
fit a corresponding socket in the driving spindle, and that spindle and the opposite
end of the mandrel are carried in bearing brackets or arms keyed or otherwise
fixed to
shaft which may he turned to raise or lower the mandrel and. either
immerse the pipe or withdraw it from the bath. For this purpose a toothed quadrant
or worm wheel may be fitted on the shaft and operated by a worm on a shaft
provided with a hand crank. The driving spindle is driven by toothed gearing
from a pulley shaft in line with the shaft carrying the bearing brackets so that
the toothed wheels may be maintained in gear while the pipe is raised or lowered.
The wire or tape is led on to the rotating pipe from a reel mounted on a carriage
adapted to be traversed on rails parallel with the axis of the pipe, the carriage being
traversed by means of a screw threaded spindle passing through a nut on the carriage.
The screw is rotated through the intervention of change wheels from the shaft which
operates the driving spindle coupled to the pipe mandrel so that the wire or tape
may be led evenly on to the pipe in helical convolutions in more or less close contact
without overlapping or so as to overlap. From the supply reel the tape or wire on
its passage to the pipe is led over or round a drum at the top of the carriage
thecce down to and round a drum to the spindle of which a weight is hung near the
Lottom of the carriage and back and forth in hank form Letween the drums and
finally over a grooved guide pulley or rollers on a shaft near the upper front edge

page_text: of the carriage to the rotating pipe immersed in the bath of molton alloy. The
application of the weight serves to stent the wire or tape and untwist or remove
kinks in it. Suitable brakes are applied to the reel and drums to provide the
required degree of tension on the wire or tape.
Dated this 28th day of February 1896.
WALLACE FAIRWEATHER,
Chartered Patent Agent, 62 St. Vincent Street, Glasgow.
Agent for tho Applicants.
Improvements in Apparatus for Colling and Soldering Metallic
Tape or Wire on Copper or other Pipes.
We, ROBERT DANIEL SMILLIE, Engineer, 80 Mains Street, and JOHN ROBERT
Brun, Engineer, 10 Morrison Street, both in the City of Glasgow, do hereby declaro
the nature of this invention and in what manner the same is to ho performed, to
he particularly described and ascertained in and by the following statement:-
This invention relates to apparatus for coiling and soldering metallic tape or wire
on copper or other pipes for the purpose of strengthening them, and it comprises
improved arrangements and combinations of devices by mons of which the tape
or wire which is usually made of iron or steel is coiled around the pipe under suitable
tension by rotating the pipe whilst partially immersed in a bath of molten metal or
alloy maintained at proper temperature by furnace heat, or outwith the bath as may
be desired, the wire being led on to the pipe by means of guiding and stenting
devices designed and operated to ensure the coiling of the tape or wire in a more or
less close helical coil.
The invention is illustrated by the accompanying drawings, Figure 1 being n
part vertical section and part end elevation, and Figure 2 a plan of the improved
apparatus.
The hath A containing the molten alloy by means of which the metallic tape
or wire B is soldered or caused to adhere to the pipe C is made in the form of a long
concave trough adapted for the reception of the largest size of piping to be operated
on, and it is supported over a furnace or heating chamber D preferably so as to
form the crown of the furnace. An auxiliary trough E is or may also bo provided
alongside and in communication with the main bath to serve either for maintaining
she supply of alloy to the main bath or as an overflow for it, this auxiliary trough
being also beated by the furnace D. The pipe C to be covered by the tape or wire B
is supported in or over the bath by means of a mandrel or shaft F having on it
dises G fitting into the ends of the pipe C and serving to carry the pipo and if
desired to exclude the molten alloy from the inside of the pipe. One end of the
mandrel Fis coupled to a driving spindle H in line with it by any suitablo means
such as by a square I adapted to fit a corresponding socket J in the driving spindle II,
and that spindle and the opposite end of the mandrel are carried in bearing
brackets or arms K keyed or otherwise fixed to a shaft L which may be turned to
raise or lower the mandrel F and either immerse the pipe or withdraw it from tho
bath. For this purpose a toothed quadrant M or worm wheel may be fitted on
the shaft. L and operated by a worm N on a shaft l' provided with a hand crank Q.
The driving spindle is driven by toothed gearing H1, H2, from a pulley shaft R
in line with the shaft. I carrying the bearing brackets K so that the toothed
wheels H, H2, may be maintained in gear while the pipe is raised or lowered.
The wire or tape B is led on to the rotating pipe C from a reel S mounted on
carriage S adapted to be traversed on rails Sparallel with the axis of the pipe C,

page_text: the carriage S being traversed by means of a screw threaded spindle S³ passing
through a nut S on the carriage. The screw S3 is rotated through the intervention
of change wheels S³, S, S7, S, S, from the shaft R which operates the driving
spindle H coupled to the pipe mandrel F so that the wire or tape B may be led
evenly on to the pipe (in helical convolutions in more or less close contact without
overlapping, or so as to overlap. From the supply reels the tape or wire B on its
passage to the pipe C is led over or round a drum T at the top of the carriage
thence down to and round a drum T' to the spindle T2 of which a weight T is hung
near the bottom of the carriage S and back and forth in hank form between the
drums T, T, and finally over a grooved guide pulley or rollers T on a shaft T
near the upper front edge of the carriage ST to the rotating pipe C immersed in the
bath A of molten alloy. The application of the weight T3 serves to stent the wire
or tape B and untwist or remove kinks in it. Suitable brakes such as U are applied
to the reel S and drum T, to provide the required degree of tension on the wire or
tape B.
Having now particularly described and ascertained the nature of our said
invention, and in what manner the same is to be performed, I declare that what
I claim is :-
1. The combination of parts constituting the improved apparatus for coiling and
soldering metallic tape or wire on copper or other pipes substantially as described.
2. In apparatus for the purpose set forth the combination with a heating furnace
of a trough for holding molten metal arranged to form the crown of the furnace
and an auxiliary trough adapted either to maintain the supply of metal or serve as an
overflow substantially as described.
3. In apparatus for the purp se set forth the combination with a rotating mandrel
carrying the pipe to be covered and its driving gear of a wire reel mounted in a
carriage adapted to be traversed parallel to the axis of the mandrel from the driving
gear which rotates the pipe mandrel substantially as described.
4. In apparatus for the purpose set forth the combination of a traversing carriage
carrying a wire reel, druins movable end wise for stenting the wire in hank form
and a movable guide pulley or roller for leading the wire on to the pipe in regular
convolutions substantially as described.
Dated this 98th day of November 1894
WALLACE FAIRWEATHER.
Of the Firm of Cruikshank & Fairweather,
Chartered Patent Agents, 62 St. Vincent Street, Glasgow,
Agent for the Applicants.