A MACHINE FOR THE MANUFACTURE OF CORRUGATED SHEET METAL TUBING
Year: 1884

page_text: PROVISIONAL SPECIFICATION,
I, CHARLES DENTON ABEL of No 28 Southampton Buildings, Chancery Lane,
in the county of Middlesex, Consulting Engineer and Patent Agent, do hereby
declare the nature of my invention for "A MACHINE FOR THE MANUFACTURE OF
CORRUGATED SHEET METAL TUBING" to be as follows:-
This invention relates to a machine for the manufacture of corrugated tubing of
zinc or other metal, for lightning conductors and the like, whereby plain brazed or
soldered metal tubes have circular corrugations formed on them by the action
of two corrugated rollers.
U
The construction of the machine will be understood-on-reference to the accom-
panying drawings, in which fig. 1 shews a front view and fig. 2 a side view of the
machine. The essential feature of the machine consists in two rollers a b, having
circular corrugations formed thereon, of which a is carried by a strong overhanging
shaft c, while the axis of b is carried by a forked rod d and is connected by
articulated joints at g and f to a shaft which is geared with the shaft c by spur
gearing as shewn, so that c being driven by a strap and fast and loose pullies, the
rollers a and b are made to revolve in contrary directions. The forked rod & slides
in a guide e on the frame, being connected at its upper end to a lever h, having
a weight k, that tends to lift the roller b away from a, such motion being permitted
by the joints at g and f. The lever h is connected by a rod to a treadle-lever i by
depressing which the forked rod d is forced downwards so as to move b towards a
against the action of the weight k.
The roller b being removed some distance from a on the release of the treadle i,
a length of metal tubing is inserted over the roller a and shaft c until it nearly
touches the frame, the tube being of such a length as to project nearly as far
beyond the roller a as it projects inwards,
Rotary motion being imparted to the rollers a and b, the latter is brought
forcibly down upon the intervening tube, whereby the corrugated configuration of
the rollers will be imparted thereto as it is caused to revolve therewith. When
after a certain number of revolutions this has been effected at the middle part of

page_text: the tube, the roller b is allowed to rise again and the tube is shifted outwards, so
as to bring another part thereof over the rollers, leaving however the last of the
formed corrugations upon the roller a, in order to insure the correct gauge for
those next to be formed. The roller b is. then again depressed and the above
operation is repeated and in this manner circular corrugations are successively
produced upon the entire surface of one half of the tube without injuring the
soldered, seam thereof. When this has been completed, the tube is turned round
and the other half of the tube is subjected to the same series of operations as above
described, the last of the already formed corrugations being placed upon the
roller a.

page_text: COMPLETE SPECIFICATION.
I, CHARLES DENTON ABEL, of No 28 Southampton Buildings, Chancery Lane
in the County of Middlesex, Consulting Engineer and Patent Agent, do hereby
declare the nature of my invention for "A MACHINE FOR THE MANUFACTURE of
CORRUGATED SHEET METAL TUBING" 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 a machine for the manufacture of corrugated tubing of
zinc or other metal, for lightning conductors and the like, whereby plain brazed
or soldered metal tubes have circular corrugations formed on them by the action of
two corrugated rollers.
The construction of the machine will be understood on reference to the accom-
panying drawings, in which fig. 1 shows a front view and fig. 2 a side view of the
machine. The essential feature of the machine consists in two rollers a, b, having
circular corrugations formed thereon, of which a is carried by a strong overhanging
shaft o while the axis of b is carried by a forked rod d and is connected by
articulated joints at g and f to a shaft which is geared with the shaft c by spur
gearing as shewn, so that c being driven by a strap and fast and loose pulleys, the
rollers a and b are made to revolve in contrary directions. The forked rod & slides.
in a guide e on the frame, being connected at its upper end to a lever h having
a weight that tends to lift the roller b away from a, such motion being permitted
by the joints at g and f. The lever h is connected by a rod h¹ to a treadle lever i
by depressing which the forked rod d is forced downwards so as to move b
towards a against the action of the weight k.
The roller b being removed some distance from a on the release of the treadle i,
a length of metal tubing is inserted over the roller a and shaft c until it nearly
touches the frame, the tube being of such a length as to project nearly as far
beyond the roller a as it projects inwards.
Rotary motion being imparted to the rollers a and b, the latter is brought
forcibly down upon the intervening tube, whereby the corrugated configuration of
the rollers will be imparted thereto as it is caused to revolve therewith. When,
after a certain number of revolutions this has been effected at the middle part of
the tube, the roller b is allowed to rise again and the tube is shifted outwards, .so
as to bring another part thereof over the rollers, leaving however the last of the
formed corrugations upon the roller a, in order to insure the correct gauge for those
next to be formed. The roller b is then again depressed and the above operation is
repeated and in this manner circular corrugations are successively produced upon
the entire surface of one half of the tube without injuring the soldered seam
thereof. When this has been completed, the tube is turned round and the other
half of the tube is subjected to the same series of operations as above described, the
last of the already formed corrugations being placed upon the roller a.
.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what

page_text: I claim in respect of machinery for the manufacture of corrugated sheet metal
tubing is
1, The arrangement of a corrugated roller a on the overhanging shaft c whereby
a previously brazed or soldered smooth sheet metal tube can have circular cor-
rugations formed thereon from the middle of its length towards both ends, to an
extent equal to about double the length of the overhanging shaft substantially as
herein described.
2, The arrangement of the second corrugated roller b connected by a universal
joint f. g..with the driving shaft and capable of being moved in a parallel direction
to and from the roller a by means of the guide rod d.
3, The arrangement of the treadle apparatus ih in combination with the roller b
for moving the same to and from the roller a and exerting the requisite pressure
for effecting the corrugation of the tubes..

page_text: I, CHARLES DENTON ABEL of No 28 Southampton Buildings, Chancery Lane,
in the county of Middlesex, Consulting Engineer and Patent Agent, do hereby
declare the nature of my invention for "A MACHINE FOR THE MANUFACTURE OF
CORRUGATED SHEET METAL TUBING "to be as follows:-
•
This invention relates to a machine for the manufacture of corrugated tubing of
zinc or other metal, for lightning conductors and the like, whereby plain brazed or
soldered metal tubes; have circular corrugations formed on them by the action
of two corrugated rollers.
.
The construction of the machine will be understood on reference to the accom-
panying drawings, in which fig. 1 shews a front view and fig. 2 a side view of the
machine. The essential feature of the machine consists in two rollers a b, having
circular corrugations formed thereon, of which a is carried by a strong overhanging
shaft c, while the axis of 6 is carried by a forked rod d and is connected by
articulated joints at g and f to a shaft which is geared with the shaft c by spur
gearing as shewn, so that c being driven by a strap and fast and loose pullies, the
rollers a and b are made to revolve in contrary directions. The forked rod d slides
in a guide e on the frame, being connected at its upper end to a lever h, having
a weight k, that tends to lift the roller b away from a, such motion being permitted
by the joints at g and f. The lever h is connected by a rod to a treadle-lever i by
depressing which the forked rod d is forced downwards so as to move b towards a
against the action of the weight k.
The roller b being removed some distance from a on the release of the treadle i,
a length of metal tubing is inserted over the rollera and shaft c until it nearly
touches the frame, the tube being of such a length as to project nearly as far
beyond the roller a as it projects inwards.
Rotary motion being imparted to the rollers a and b, the latter is brought
forcibly down upon the intervening tube, whereby the corrugated configuration of
the rollers will be imparted thereto as it is caused to revolve therewith. When,
after a certain number of revolutions this has been effected at the middle part of
ID 671

page_text: the tube, the roller b is allowed to rise again and the tube is shifted outwards, so
as to bring another part thereof over the rollers, leaving however the last of the
formed corrugations upon the roller a, in order to insure the correct gauge for
those next to be formed. The roller b is then again depressed and the above
operation is repeated and in this manner circular corrugations are successively
produced upon the entire surface of one half of the tube without injuring the
soldered seam thereof. When this has been completed, the tube is turned round
and the other half of the tube is subjected to the same series of operations as above
.described, the last of the already formed corrugations being placed upon the
roller a.
•
ABEL & IMRAY,
Agents for the Applicant,
28, Southampton Buildings,
London, W.C.

page_text: COMPLETE SPECIFICATION.
I, CHARLES DENTON ABEL, of No 28 Southampton Buildings, Chancery Lane
in the County of Middlesex, Consulting Engineer and 'Patent Agent, do hereby
declare the nature of my invention for "A MACHINE FOR THE MANUFACTURE OF
CORRUGATED SHEET METAL TUBING" 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 a machine for the manufacture of corrugated tubing of
zine or other metal, for lightning conductors and the like, whereby plain brazed
or soldered metal tubes have circular corrugations formed on them by the action of.
two corrugated rollers.
The construction of the machine will be understood on reference to the accom-
panying drawings, in which fig. 1 shews a front view and fig. 2 a side view of the
machine. The essential feature of the machine consists in two rollers a, b, having
circular corrugations formed thereon, of which a is carried by a strong overhanging
shaft c while the axis of b is carried by a forked rod d and is connected by
articulated joints at g and f to a shaft which is geared with the shaft c by spur
gearing as shewn, so that o being driven by a strap and fast and loose pulleys, the
rollers a and b are made to revolve in contrary directions. The forked rod & slides
in a guide e on the frame, being connected at its upper end to a lever h having
a weight k that tends to lift the roller. b away from a, such motion being permitted
by the joints at g and f. The lever h is connected by a rod h¹ to a treadle lever i
by depressing which the forked rod d is forced downwards so as to move. b
towards a against the action of the weight k.
The roller b being removed some distance from a on the release of the treadle i,
a length of metal tubing is inserted over the roller a and shaft c until it nearly
touches the frame, the tube being of such a length as to project nearly as far
beyond the roller a as it projects inwards.
Rotary motion being imparted to the rollers a and b, the latter is brought
forcibly down upon the intervening tube, whereby the corrugated configuration of
the rollers will be imparted thereto as it is caused to revolve therewith. When,
after a certain number of revolutions this has been effected at the middle part of
the tube, the roller b is allowed to rise again and the tube is shifted outwards, so
as to bring another part thereof over the rollers, leaving however the last of the
formed corrugations upon the roller a, in order to insure the correct gauge for those
next to be formed. The roller b is then again depressed and the above operation is
repeated and in this manner circular corrugations are successively produced upon
the entire surface of one half of the tube without injuring the soldered seam
thereof. When this has been completed, the tube is turned round and the other
half of the tube is subjected to the same series of operations as above described, the
last of the already formed corrugations being placed upon the roller a.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what.
•

page_text: I claim in respect of machinery for the manufacture of corrugated sheet metal
tubing is.
1, The arrangement of a corrugated roller a on the overhanging shaft c whereby
a previously brazed or soldered smooth sheet metal tube can have circular cor-
rugations formed thereon from the middle of its length towards both ends, to an
extent equal to about double the length of the overhanging shaft substantially as
herein described.
2, The arrangement of the second corrugated roller b connected by a universal
joint f. g. with the driving shaft and capable of being moved in a parallel direction
to and from the roller a by means of the guide rod d.
3, The arrangement of the treadle apparatus i h in combination with the roller b
for moving the same to and from the roller a and exerting the requisite pressure
for effecting the corrugation of the tubes.
Dated this 13th day of July 1885.
ABEL & IMRAY,
15
Agents for the Applicant,
HI
28, Southampton Buildings,
London, W.C.
J