IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE of Taper METALLIC TUBES
Year: 1863

page_text: LETTERS PATENT to William Hulse and Campbell Lloyd Haines, of
Birmingham, in the County of Warwick, Metallic Bedstead Manu-
facturers, for the Invention of "IMPROVEMENTS IN MACHINERY FOR THE
MANUFACTURE of Taper METALLIC TUBES."
Sealed the 11th March 1863, and dated the 15th January 1868.
PROVISIONAL SPECIFICATION left by the said William Hulse and
Campbell Lloyd Haines at the Office of the Commissioners of Patents,
with their Petition, on the 15th January 1863.
We, WILLIAM HULSE and CAMPBELL LLOYD HAINES, of Birmingham, in
the County of Warwick, Metallic Bedstead Manufacturers, do hereby declare
the nature of the said Invention for "IMPROVEMENTS IN MACHINERY FOR THE
MANUFACTURE OF TAPER METALLIC TUBES," to be as follows:-
Our Invention consists of the improvements in machinery for the manu-
facture of taper metallic tubes herein-after described, by the use of which
machinery properly shaped sheets or plates of metal are rolled or bent up into
taper tubes.
The said machinery is thus constructed:-A taper mandril of the size
of the taper tube to be made has a straight narrow slot made in its whole
length, the said slot having the depth of about half an inch. The said mandril
fits in a bed which covers the lower half of the said mandril, and a cover which
partly covers the upper half of the said mandril is capable of being fixed upon
and removed from the before-mentioned bed. When the mandril is 'enclosed
by the bed and cover about three-fourths of the said mandril are covered.

page_text: The mandril is capable of being geared to driving mechanism, by which a
slow rototary motion is given to it. In using the machinery the taper mandril
is placed in the bed and the cover is fixed down. The edge of the sheet of
metal to be made into a taper tube is introduced into the slot in the mandril,
and the said mandril is geared to the driving mechanism. As the mandril
slowly rotates it draws the sheet of metal between the said mandril and the
bed, and bends it into the form of an open-jointed taper tube. The cover
serves to hold down the mandril, and also helps to bend the sheet of metal;
after the mandril has made two rotations the figure of the tube is sufficiently
perfect. The mandril being thrown out of gear with the driving machinery
the cover is removed and the mandril lifted from the bed, and the taper
tube drawn from off it; the tube may be finished by soldering in the ordinary
manner.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said William Hulse and Campbell Lloyd Haines in the Great
Seal Patent Office on the 7th July 1863.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, WILLIAM
HULSE and CAMPBELL LLOYD HAINES, of Birmingham, in the County of
Warwick, Metallic Bedstead Manufacturers, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Fifteenth day of January, in the year of our Lord
One thousand eight hundred and sixty-three, in the twenty-sixth year of Her
reign, did, for Herself, Her heirs and successors, give and grant unto us, the
said William Hulse and Campbell Lloyd Haines, Her special licence that we,
the said William Hulse and Campbell Lloyd Haines, our executors, adminis-
trators, and assigns, or such others as we, the said William Hulse and
Campbell Lloyd Haines, our executors, administrators, and assigns, should
at any time agree with, and no others, from time to time and at all times
thereafter during the term therein expressed, should and lawfully might make,
use, exercise, and vend, within the United Kingdom of Great Britain and
Ireland, the Channel Islands, and Isle of Man, an Invention for "IMPROVE-
MENTS IN MACHINERY FOR THE MANUFACTURE OF TAPER METALLIC TUBES," upon
the condition (amongst others) that we, the said William Hulse and Campbell
Lloyd Haines, our executors or administrators, by an instrument in writing
under our or their hands and seals, or under the hand and seal of one of
us or them, should particularly describe and ascertain the nature of the

page_text: said Invention, and in what manner the same was to be performed, and
cause the same to be filed in the Great Seal Patent Office within six
calendar months next and immediately after the date of the said Letters
Patent.
NOW KNOW YE, that we, the said William Hulse and Campbell Lloyd
Haines, do hereby declare the nature of the said Invention, and in what
manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement thereof, that is to say:-
Our Invention consists of the improvements in machinery for the manu-
facture of taper metallic tubes herein-after described, by the use of which
machinery properly shaped sheets or plates of metal are rolled or bent up into
taper tubes.
The said machinery is thus constructed :-A taper mandril of the size of
the taper tube to be made has a straight narrow slot made in its whole
length, the said slot having the depth of about half an inch. The said
mandril fits in a bed which covers the lower half of the said mandril, and a
cover which partly covers the upper half of the said mandril is capable of
being fixed upon and removed from the before-mentioned bed. When the
mandril is enclosed by the bed and cover about three-fourths of the said
mandril are covered. The mandril is capable of being geared to driving
mechanism, by which a slow rotatory motion is given to it. In using the
machinery the taper mandril is placed in the bed, and the cover is fixed down.
The edge of the sheet of metal to be made into a taper tube is introduced into
the slot in the mandril and the said mandril is geared to the driving
mechanism. As the mandril slowly rotates it draws the sheet of metal
between the said mandril and the bed, and bends it into the form of an open
jointed taper tube. The cover serves to hold down the mandril, and also
helps to bend the sheet of metal. After the mandril has made about two
rotations the figure of the tube is sufficiently perfect. The mandril being
thrown out of gear with the driving machinery the cover is removed, and
the mandril lifted from the bed and the taper tube drawn from off it. The
tube may be finished by soldering in the ordinary manner.
Having explained the nature of our Invention we will proceed to describe,
with reference to the accompanying Drawing, the manner in which the same
is to be performed.
Figure 1 represents in elevation a machine constructed according to our Inven-
tion for the manufacture of taper metallic tubes; Figure 2 is a plan of the same;
and Figure 3 is an end elevation of the same, the parts of the said machine,
Figures 1, 2, and 3, being in the positions which they respectively assume

page_text: when a tube is about to be manufactured by it; Figure 4 represents the same
end of the machine as Figure 3, but with the cover of the mandril removed,
and after a tube has been made upon the said mandril. The same letters of
reference indicate the same parts in the several Figures of the Drawing.
a is a taper mandril of the size of the taper tube to be manufactured. The
said mandril a fits in a bed 6, the trough or concavity in the said bed covering
the lower half of the said mandril. The said bed b is supported on the
standards or uprights c, c, of the machine, the said bed being dropped into the
said standards and securely fixed therein by screws d, d. The mandril a has
a straight narrow slot a² made in its whole length, the said slot having the
depth of about half an inch. A cover e covers nearly the upper half of the
mandril a, as seen in Figure 3, the said cover being capable of being fixed
upon the bed b, and removed therefrom at pleasure. The cover e is carried by
two cranked levers f, f, the lower ends of the said levers being jointed at g to
the fork h. The ends of this fork h are connected to the axis i turning in
bearings at i³, 12. Slots k are made in the levers f, through which slots the
ends of the rod 7 supported by the fixed supports m pass. By raising the
handle n connected with the fork h from the position represented in Figure 4
to that represented in Figure 3, the cover è is brought on to the bed b and
made to cover nearly the whole of the upper half of the mandril a, as repre-
sented in Figure 3. When the cover is in the last-named position about
three-fourths of the mandril is covered, a space being left on one side for the
introduction of the plate or sheet to be made into a tube. The cover e is
fixed in its place on the bed 6 by means of the wedges o, p, the said wedges
being passed through slots or openings in the short uprights 7 fixed on the
bed b. Openings are made in the cover e through which the uprights 7 pass
when the said cover is removed from or put in its place. The ends of the
wedges o, p, bear against the beads of the adjustable.stops r, r, on the cover e;
s is the driving shaft of the machine by which a slow rotatory motion is
transmitted to the mandril a.. A toothed wheel from the driving power gears
with the toothed wheel. t on the driving shaft s in the ordinary way. The
mandril a is connected with and disconnected from the driving shafts by.
means of the screw 2. A chamber or recess is made in the end of the
driving shafts, in which the end of the mandril a fits, and is fixed therein by
the said screw u being passed through the said shaft and made to engage with
the mandril, as indicated in dotted lines in Figures 1 and 2.
:
In using the machine, the taper mandril a is placed in the bed b, and the
cover: e,brought down upon the said bed, by means of the handle n, and fixed
thereupon. by the wedges o, R. The edge of the sheet or plate of metal v to

page_text: be made into a tube is placed in the slot at a² in the mandril a, as best seen
in Figure 3; and the said mandril is connected by means of the screw u to
the driving shafts. The mandril a is thereby made slowly to rotate and the
sheet of metal vis drawn between the said mandril a, bed b, and cover e, and
bent or rolled into the form of an open jointed tube. During the bending of
the tube the cover e holds down the mandril a, and assists in bending the
sheet of metal.
The mandril having made about two rotations the tube is sufficiently
perfect. A tube encircling the mandril a made in the way just described is
represented in Figure 4. The screw u is now withdrawn from the mandril
and the said mandril disconnected from the driving shaft s. The wedges o, p,
being removed, the cover e is lifted from the bed 6 by depressing the handle n,
as represented in Figure 4. The mandril can now be lifted from the bed b
and the taper tube drawn from off it. The mandril is replaced in the bed and
the operations already described are repeated.
Taper tubes manufactured by our improved machinery may be finished by
soldering in the ordinary way.
Our improved machine is applicable to the manufacture of taper tubes from
sheets or plates of iron, brass, or other metal or alloy.
Having now described the nature of our Invention and the manner in
which the same is to be performed, we wish it to be understood that we
do not limit ourselves to the precise details herein described and represented,
as the same may be varied without departing from the nature of our
Invention.
But we claim as our Invention the general arrangement or combination of
parts of the machinery for the manufacture of taper metallic tubes, herein-
before described and illustrated in the accompanying Drawing.
In witness whereof, we, the said William Hulse and Campbell Lloyd
Haines, have hereunto set our hands and seals, this Third day of
July, in the year of our Lord One thousand eight hundred and sixty-
three.
Witness,
GEORGE SHAW.
WILLIAM HULSE.
(L.S.)
CAMPBELL LLOYD HAINES. (L.S.)