Improvements in or relating to the Manufacture of Metal Cylinders.
Year: 1890

page_text: Date of Application, 6th Mar., 1890
Complete Specification Left, 25th Apr., 1890-Accepted, 21st June, 1890
PROVISIONAL SPECIFICATION.
Improvements in or relating to the Manufacture of Metal
Cylinders.
A communication from EDWARD K. COAS, of Gloucester, County of Essex, and
Commonwealth of Massachusetts, United States of America.
I, ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex, M.I.M.E.,
do hereby declare the nature of this invention to be as follows:-
This invention relates to mechanism for making cylinders out of sheet metal strips
or ribbons by coiling said ribbons about each other and uniting them with
solder.
In forming cylinders by coiling ribbons of sheet metal about each other and uniting
them together with solder it has been found desirable to coat the ribbons with a
surface coating of soldering material before they are wound and subsequently to being
thus prepared the ribbons are wound and united simultaneously. It is a mechanism
designed for winding and uniting the ribbons that comprises this present invention.
To that end I provide a hollow mandrel which is fixed upon a suitable supporting
frame and this mandrel is heated from the inside by a gas flame issuing at various
points from a suitable conducting pipe.
The ribbons of sheet metal are conducted through guides and are wound about the
mandrel. The cylinder is composed of two or more ribbons which are wound about
the mandrel with their joints alternating with each other i.e. with the joints formed by
one ribbon overlapping the metal of the other adjacent ribbon. The mandrel is heated
to such a degree that when the metallic ribbons bear upon its surface. a sufficient heat
is imparted thereto to cause the surface coating of solder on the metallic strips to
become softened and melted so that when the ribbons bear upon each other they
become united. To this end a suitable soldering flux as rosin or acid may be
applied.
In starting the formation of a cylinder the ribbons are coiled about the mandrel by
the hands of the workman and a short section cylinder is thus formed. This section
is sufficiently long to extend over the mandrel and also over a cooling jacket to a
clamp device whereby the end of said cylinder is clamped. Said clamping device is
mounted upon a carriage which in turn is mounted upon suitable ways and provided
with mechanism whereby a longitudinal movement of said carriage is effected. During
this longitudinal movement of the carriage the clamping device is given a rotary
movement to the end that the cylinder shall be turned about the mandrel for winding
the ribbons and also drawn longitudinally as fast as formed. The cooling drum com-
prises an outer jacket having an inner chamber leading from which are pipes. Said
chamber is constantly supplied with cold liquid as water which is conducted thereto
through a pipe and exhausted through another pipe. In this manner the shell or
jacket of the drum is kept cool and the outer surface of said jacket is arranged to be
in sliding contact with the ribbons of the cylinder while passing over the same. By
this arrangement the soldering between the ribbons is set. The conducting pipes are
extended throughout the length of the ways travelled by carriage and to this end
central openings are made through the carriage and its supported mechanism to
accommodate said pipes. The clamp is composed of two parts hinged at the rear
adapted to be drawn together by suitable clamping screws.
In operation the end of the cylinder is clamped tightly within said clamps. The
lower member of said clamps is secured to a gear and said gear is mounted on the
carriage through intermediate supporting rolls which rolls are arranged on studs
extending from the carriage and bear upon the inner face of the gear wheel. Said
clamp is revolved by reyolving the gear wheel. This may be effected by a gear

page_text: mounted to slide on a rod and communicating with the driving mechanism through
an intermediate gear.
The longitudinal movement of the carriage is effected by a mechanism consisting of
a gear on the driving shaft and intermediate gear and screw shaft and engaging
prongs supported on the carriage and meshing with the screw on the shaft.
In operating the machine the cylinder is clamped by clamping device and the
carriage is set in motion and simultaneously with this movement the clamp is made to
revolve thereby turning the cylinder and feeding it forward progressively. The
mandrel is but a short section which being constantly heated allows the cylinder to
turn in sliding contact with the mandrel. The metallic ribbons are drawn through
..their respective guides and wound spirally about each other. A wheel is arranged to
travel on the seam formed by the outer ribbon so as to keep it well down and in
contact with the inner ribbon which constitutes a sort of core for the outer ribbon to
wind about. The details can be varied.
Dated this 6th day of March 1800
W. P. THOMPSON & BOULT,
Agents for the Applicant.
COMPLETE SPECIFICATION.
Improvements in or relating to the Manufacture of Metal
Cylinders.
A communication from EDWARD K. COAS, of Gloucester, County of Essex,
and Commonwealth of Massachusetts, United States of America.
I, ALFRED JULIUS BOULT of 323 High Holborn, in the County of Middlesex, M.I.M.E.,.:
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:-
This invention relates to mechanism for making cylinders out of sheet metal, strips
or ribbons by coiling said ribbons about each other and uniting them with solder.
Referring to the drawings,.
Fig. 1 is a side elevation of a machine embodying the invention;
Fig. 2 is an end view thereof looking toward the left;
Fig. 3 is an end view thereof looking toward the right;
Fig. 4 is an elevation of a section on line 4, 4, of fig. 1, looking toward the
left;
Fig. 5 is an elevation of section on line 5, 5, of fig. 1 looking toward the
right;
Fig. 6 is an elevation of section on line 6, 6, of Fig. 1, looking toward the
right;
Fig. 7 is an elevation of a section on line 7, 7 of Fig. 1, looking toward the
left;
Fig. 8 is a longitudinal, vertical section of the machine and
Figs. 8, 9, and 10 are details to be referred to and described hereinafter.
In forming cylinders by coiling ribbons of sheet metal about each other and uniting
them. together with soider it has been found desirable to coat the ribbons with a
surface coating of soldering material before they are wound and subsequently to
being thus prepared the ribbons are wound and united simultaneously. It is a
mechanism designed for winding and uniting the ribbons that comprises this present
***invention.
To that end, a hollow mandrel A is provided which is fixed upon a suitable supporting
frame (see figs. 1 and 8) and this mandrel is heated from the inside by gas flame
issuing at various points from a suitable conducting pipe as B.
The ribbons of sheet metal are conducted through guides, E E and are wound about
the mandrel A. The cylinder is composed of two or more ribbons which are wound.
about the mandrel A with their joints alternating with each other i.e. with the joints

page_text: formed by one ribbon overlapping the metal of the other adjacent ribbon. The
mandrel A is heated to such a degree that when the metallic ribbons bear upon its
surface a sufficient heat is imparted thereto to cause the surface coating of solder on
the metallic strips to become softened and melted so that when the ribbons bear upon
each other they become united. To this end, a suitable soldering flux as rosin or
acid may be applied.
In starting the formation of a cylinder, the ribbons are coiled about the mandrel by
the hands of the workman and a short section cylinder is thus formed. This
section is sufficiently long to extend over the mandrel and also over a cooling
jacket H to a clamp device K whereby the end of said cylinder is clamped. Said
clamping device is mounted upon a carriage N which in turn is mounted upon
suitable ways and provided with mechanism whereby a longitudinal movement of
said carriage N is effected. During this longitudinal movement of the carriage N the
clamping device is given a rotary movement to the end that the cylinder shall be
turned about the mandrel A for winding the ribbons and also drawn longitudinally as
fast as formed. The cooling drum H comprises an outer jacket having an inner
chamber a leading from which are pipes e b. Said chamber a is constantly supplied
with cold liquid as water which is conducted thereto through the pipe e and exhausted
through the pipe b. In this manner, the shell or jacket of the drum is kept cool and
the outer surface of said jacket is arranged to be in sliding contact with the ribbons
of the cylinder while passing over the same. By this arrangement the soldering
between the ribbons is set. The conducting pipes e b are extended throughout the
length of the ways travelled by carriage N and to this end central openings are made
through the carriage N and its supported mechanisin to accommodate said pipes. The
clamp K is composed of two parts hinged at the rear (see fig. 6) adapted to be drawn
together by suitable clamping screws f.
In operation the end of the cylinder is clamped tightly within said clamps. The
lower member of said clamps is secured to a gear S and said gear is mounted on
the carriage N through intermediate supporting rolls 4 4 which rolls are arranged
on studs extending from the carriage N and bear upon the inner face of the gear
wheel S as more specifically shown in figs. 1, 6 and 8. Fig. 9 is a detail of one of
said rolls and its supporting stud. Said clamp K is revolved by revolving the gear
wheel S. This may be effected by a gear 5 mounted to slide on a rod 6, and
communicating with the driving mechanism through an intermediate gear 7 as
represented.
The longitudinal movement of the carriage N is effected by a mechanism con-
sisting of a gear, 8 on the driving shaft and intermediate gear 9, screw shaft 10
and engaging prongs supported on the carriage and meshing with the screw on
shaft 10.
In operating the machine the cylinder is clamped by clamping device K and the
carriage N ist in motion and simultaneously with this movement the clamp is made
to revolve treby turning the cylinder and feeding it forward progressively. The
mandrel A is out a short section which being constantly heated, allows the cylinder to
turn in slidin contact with the mandrel. The metallic ribbons are drawn through
their respective guides and wound spirally about each other. A wheel 15 is arranged
to travel on the seam formed by the outer ribbon so as to keep it well down and in
contact with the inner ribbon which constitutes a sort of core for the outer ribbon to
wind about. The details can be varied.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed as communicated to me
by my foreign, correspondent, I declare that what I claim is :-
:-
1. In a machine for making cylinders the combination of a mandrel A and means
for continuously heating the same, a cooling drum as H and means for continuously
cooling the same and a revolving longitudinally movable clamp mechanism for holding,
turning and moving the cylinder longitudinally, substantially as described.

page_text: 2. In a machine for making cylinders the mandrel A combined with guides E E
and presser-wheel 15 substantially as described.
3. In combination with the mandrel A and means for continuously heating the
same, the clamp K and operating mechanism to give a rotary longitudinal movement
to the clamp, substantially as set forth.
4. In a machine for making cylinders the combination with a mandrel and means
for continuously heating the same of mechanism for winding metallic strips or ribbons
into a cylinder around the mandrel, of a cooling drum whereby the cylinder is
progressively cooled, substantially as described.
5. In a machine for making cylinders the mandrel A and guides E E combined
with clamp device K and operating mechanisms, substantially as described.
Dated this 25th day of April 1890.
W. P. THOMPSON & BOULT,
Agents for the Applicant.