Year: 1898

page_text: I, HARRY NORRIS, No. 46, Rann Street, Ladywood, Birmingham, Tube Bender,
do hereby declare the nature of this invention to be as follows:-
A machine for shaping tubes longitudinally corrugated so that they will present
a greater surface than a circular tube, and also for reducing tubes, and other similar
articles.
The machine consists of a circular ring or band (B) which forms the frame; at
regular spaces through the said band I shall have round holes screwed internally
to admit pins (D,) screwed with a square thread. On the outside end of these pins
will be a toothed wheel long enough to admit it to go in and out as required. On
the other end of the said screws (D) will be a square bolt or pin (E) these pins
will pass through a circular band (A) which will have square holes in it so as to
prevent the bolts from turning round. The screwed pin D will revolve inside the
square pins (E) and force them in or out as required, without turning them round.
On the other end of these square pins, I shall have rollers F, fixed so as to form a
revolving die.
Round about the outside circle, and parallel to the toothed wheel C, will be a
wheel the inside next to the toothed wheel C being toothed, so as to run into each
wheel round the circle. Thus while a tube is drawn through the said circular
wheel is turned either to the right or left, making the roller F go in or out as
required.
To reduce a tube, the rollers F must be changed and flat plates must be fixed to
the square pins D or pins somewhat similar. These plates are fixed in a reverse
position to the rollers F, so as to meet the tube crosswise or transverse, and for
preference I shall only have three or four as required. In coming to the centre
the sides of the plates would meet, and to prevent this, I shall have them fixed
on the square pins so as to be a little to the side of each other. Thus when a tube
is placed or drawn through these plates can be made to come in together as before
explained and reduce the same.

page_text: COMPLETE SPECIFICATION.
Improvements in Drawing, Corrugating, and Reducing Tubes and the
like.
I, HARRY NORRIS, of No. 46, Rann Street, Ladywood, Birmingham, in the
County of Warwick, Tube Bender, 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 the improvements hereinafter described in drawing
corrugating and reducing tubes and the like and has for its object the construction
and arrangement of mechanism whereby tubes may be corrugated longitudinally.
My invention consists essentially in a series of rollers arranged to rotate obliquely
with each other and operate simultaneously on the external surface of a tube as
it passes to and from the draw bench the rollers having a backward and forward
motion centripetal to the tube.
The nature of my invention will be more clearly understood from the accompany-
ing drawings, the same letters of reference indicating similar parts throughout.
Figures 1 and 2 show in front elevation and cross section respectively my
improved machine.
Figure 3 shows a front elevation of the machine with the front removed.
Figure 4 is a section of the plate or front of the machine.
Figure 4 is a vertical section of the machine showing the front plate in its
place.
Figure 5 shows detail views A and B, are two annular rings forming part of
the framework D the ring A is drilled and tapped with square screw threads to
receive the screw pins G. The toothed faced wheel H may be rotated round the
frame D by means of the handles M to which the pinions C forming part of the
screws G gear and obtain rotary motion from the face wheel H. To the ends of
the screwpins G are connected the square holes F of the ring B I connect the screws
to the slide E by means of a swivel joint e so that by gyration of the screw the
slide is pushed towards the centre of the machine. The end of the slides E ter-
minate into the forks I between which are fitted the rollers J free to rotate on the
pivots K. The action of the machine is as follows:-
I attach the machine to a convenient part of the drawbench so as to receive the
tube as it leaves the drawbench die.
The tube in passing through the hole L of the machine is operated on by the
rollers J which move backward and forward on the surface of the tube.
The handles M are held by the operator and moved in one direction or the other
which gyrate the wheel H giving rotary motion to the pinions C and screws G
which push the slides E and roller J towards the tube and cause the corrugations
to be impressed thereon part of the tube may by means of my machine be corrugated
and part left plain by causing the rollers to be forced on the tube and withdrawn
as required.
In using my improved machine for reducing a tube, I remove the rollers J from
the forks I and place therein flat plates shown at Fig. 5 being operated in the
same manner as the rollers so so to meet the tube crosswise or transverse. Prefer-
ably I use three or four of the plates to press on the tube, and reduce the same.
In the arrangement shown at Figs. 3, 4, and 4* the screwbox E2 forms part of the
fork I the said slides being held in position by the plate R Figure 4*.
The action in this arrangement is the same as in Figure 1 and 2 except that the
motion of the pinion C causes the neck N and screw G to rotate and push the
screwbox towards the centre thus bringing the rollers J in contact with the tube.

page_text: Having now particularly described and ascertained the nature of my invention
and in what manner the same is to be performed I declare that what I claim is:-
(1) The improved machine for corrugating and reducing tubes consisting of the
rollers J arranged to operate on the tube by means of a screw, pinion and face-
wheel substantially as described and illustrated in the accompanying drawings.
(2) Reducing tubes by means of plates operated in the manner herein described.
The combination and arrangement of parts constituting the machine for
rolling corrugations on tubes substantially as described and illustrated.
Dated this 15th day of November 1898.
WILLIAM HENRY BARACLOUGH,
36, Temple Street, Birmingham, Agent for the Applicant.
WILLIAM HENRY BARACLOUGH,
36, Temple Street, Birmingham, Agent for the Applicant.