A NEW OR IMPROVED TUBE ROLLING MACHINE
Year: 1885

page_text: I EDWARD TANGYE of the Elms, Redruth in the county of Cornwall, Engineer
do hereby declare the nature of my invention for A NEW OR IMPROVED TUBE
ROLLING MACHINE to be as follows:-
The object of my invention is to provide a machine which shall be capable of
producing a more perfect and lighter metallic tube or pipe, for fuse, or other
purposes than anything at present produced and which shall also be less costly.
I make use of a pair or pairs of metallic cylinders or rolls, and in these I cut
grooves of a semi-eliptical form and gradually reducing in size; so arranged that
when the rolls are placed together, a series of oval holes shall be formed having
their longer diameters parallel to the axis of the rolls.
I arrange these rolls in bearings in a frame or frames and connect suitable
gearing for driving by belt or otherwise. I fix to the frame or frames of the
machine a guide or guides in which I make holes corresponding to the holes
formed by the rolls, but with the longer diameter at right angles to the axis of
the rolls, thus I guide the tube to the rolls and prevent its turning over.
If preferred the grooves in the rolls may be cut so as to form holes, when the
rolls are placed together which shall be alternately oval and circular; and in that
case the guide is made with holes to correspond.
The tube to be drawn or rolled may be filled with gunpowder, or other suitable
material, dependant upon the use for which it is intended; and is reduced to the
required dimensions by being passed through and through between the rolls.
Doted this 24th day of auch 100%

page_text: I EDWARD TANGYE of the Elms Redruth in the county of Cornwall, Engineer
do hereby declare the nature of my invention for A NEW OR IMPROVED TUBE
ROLLING MACHINE and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement: -
The object of my invention is to provide a machine which shall be capable of
producing more perfect and lighter metallic tube or pipe for fuse or other purposes
than anything at present in use and which shall be less costly.
I make use of a pair or pairs of metallic cylinders or rolls and in these I cut
grooves of a semi-eliptical form and gradually reducing in size so arranged that
when the rolls are placed together a series of oval holes shall be formed having
their longer diameters parallel to the axes of the rolls and so proportioned to each
other that the shorter diameter of any opening shall not exceed in length the
longer diameter of the next opening of the descending series.
If preferred the grooves in the rolls may be cut so as to form holes when the
rolls are placed together which shall be alternately oval and circular but in this
case the diameters of the circular holes shall not be less than the shorter diameters
of the openings inmediately preceding them.
I
arrange the rolls in bearings in a frame or frames secured to a suitable base
plate or bed, and connect gearing for driving by belt or otherwise. I secure a
projecting guide or guides to the frame or frames of the machine by means of which
I conduct the tube to the rolls and in which I fix dies having holes placed opposite
the holes formed by the rolls and fitting close up to them. The first hole
corresponds with the size and shape of the tube as it is brought to the machine
and each succeeding hole corresponds in both size and shape to the opening
between the rolls immediately preceding it in the series; (in the case of oval holes
the longer diameter is placed vertically) and as the guide is carried forward to the
centre of the rolls, the tube is so held that it cannot turn over as it enters, and
abrasion is prevented.
Referring now to the accompanying drawing in which similar letters indicate
similar parts throughout: Figure 1 is an end view and Figure 2 is a front view of
the machine.
A A represents the rolls which rest upon each other at the ends and are slightly
apart where the grooves are cut and the guides fitted, they revolve in bearings B B¹
the latter being adjustable by the nuts CC, on the axles of these rolls gearing
wheel D D¹ are fixed, E is a bed or base plate upon which the screws F and G aro
fixed by means of which the bearings are adjusted by altering the position of the
nuts C C. Upon the screws F the guide plate H is secured as shown its exact
position being regulated by the nuts I I. In this guide plate dies J J are secured
of such a shape as to project to the centre of the rolls (terminating almost in a
knife edge) they are held in position by the screws K and may be adjusted or
removed. On the end of the base plate a bracket L is secured in which the
axle M revolves, on one end of this axle the toothed wheel which gears into and
drives the wheel D' is fixed and on the other end the driving pulley N is secured.
The machine is driven by a belt from any convenient motor.

page_text: In the rolls A A a graduated series of grooves a a are cut as shown, alternating,
semi-eliptical and semi-circular; the size of the hole a' formed when the rolls are
placed together depends upon the size of the tube, to be operated upon and is
arranged so that its longer diameter shall not be less than the diameter of the
tube; the diameter of the hole a² (or the longer diameter if the hole were oval) is
arranged so as not to be less than the shorter diameter of the hole a¹ and so on
throughout the series.
The guide H is fitted with a series of dies J J as shown having holes to
correspond in size and shape with the holes formed by the grooves in the rolls, the
largest J¹ being circular to receive the tube as it comes to the machine, the
second J being oval to receive the tube as it comes from the largest hole a¹
formed by the rolls which is oval, the third J³ being again circular to receive the
tube as it comes from the second hole a² formed by the rolls which is circular and
so on oval and circular and gradually reducing in size throughout the series.
In the case of oval guide holes the longer diameter is placed vertically.
The rolls having been adjusted and being securely held in position the machine
is started by means of a belt on the pulley N and the rolls revolve, the tube which
is previously filled with gunpowder or other suitable material dependant upon the
use for which it is intended and having its ends closed is then passed into the
largest circular guide hole, is caught by the rolls and pulled through, being drawn
into an oval shape reduced in size and increased in length, it is then returned to
the next guide hole which is oval passed in and being gripped by the rolls is
pulled through and drawn into a circular shape, again of smaller diameter and
greater length, this process is continued until the desired size is reached. The last
opening a is so proportioned as by changing the sectional area of the tube from
an eliptical to a circular form to increase its capacity thus in the case of tube to
be used for fuse the contents are granulated and the rate and certainty of its
action assured. By this method I produce a lighter and more perfect tube than
anything at present in use which may be covered, varnished, and countered as
desired.
I would not have it understood that I confine myself to the use of a single set
of rolls as here described as I may use two or more sets.
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
I claim is
I. In a tube rolling machine the form and arrangement of the roll grooves
substantially as and for the purposes shown and described.
II. In a tube rolling machine the combined form and arrangement of the roli
grooves and guides or dies substantially as and for the purposes shown and
described.
A. H. REED,
Agent.