Im- PROVEMENTS IN THE MANUFACTURE OF SHEET METAL ROLLERS OR DRUMS
Year: 1870

page_text: LETTERS PATENT to James Hall and George Hall, both of the Town
and County of the Town of Nottingham, for the Invention of "Im-
PROVEMENTS IN THE MANUFACTURE OF SHEET METAL ROLLERS OR DRUMS."
Sealed the 28th February 1871, and dated the 29th September 1870.
PROVISIONAL SPECIFICATION left by the said James Hall and George
Hall at the Office of the Commissioners of Patents, with their
Petition, on the 29th September 1870.
We, JAMES HALL and GEORGE HALL, both of the Town and County
of the Town of Nottingham, do hereby declare the nature of the said
Invention for "IMPROVEMENTS IN THE MANUFACTURE OF SHEET METAL ROLLERS
OR DRUMS," to be as follows:-
"
:-
The Invention has for its object improvements in the manufacture of
sheet metal rollers or drums, which rollers or drums are applicable to
'warp'
" and "twist" frames, to spinning machinery, and to other
purposes, and relates to the employment of a novel mode of construction
whereby great strength and "truth" are obtained.

page_text: Instead of forming the rollers or beams with a lap joint as usual we
cause the joint to radiate from the centre of the roller or beam, for
which purpose we first bend the plates of which the rollers or beams are
to be made with their edges at right angles thereto, then by the aid of
a roller or mandril with a groove formed therein we bend the plate into
a tubular form with the two edges lying flat against each other, then
the two parts of the joint are soldered together so as to form the edges
into a longitudinal rib or fin on the inside of the roller or beam in a line
radiating from the centre thereof. To form a long roller the end of one
short tube is compressed and a recess sunk therein so that one end of
another tube may be passed over it, a portion of the longitudinal rib or
fin being cut away; the two parts are then soldered together so as to
make a flush joint.
Rollers formed as above described are suitable to be employed for
small diameters, but when larger diameters of rollers or beams are
required we make the roller or beam double, that is, with the exterior
tube or cylinder formed as before described, and with an interior tube or
cylinder formed in a somewhat similar manner, but with the addition of
longitudinal grooves or corrugations to give additional transverse strength,
we prefer to employ three of such grooves or corrugations so as to obtain
the maximum of strength combined with a more continuous support to
the exterior tube or cylinder, but other numbers of grooves or corrugations
may be employed, such grooves or corrugations occupying ouly a small
portion of the circumference of the tube or cylinder, the other parts
being portions of a circle. The ribs or fins on the interior of the exterior
tubes or cylinders are passed into one or other of the grooves or
corrugations in the interior tubes or cylinders, so as equally to distribute
these ribs or fins around the rollers or drums, the inner tubes or cylinders
being passed by preference half way through the outer ones so as to
break joint therewith. In this latter case the ends of the outer tubes or
cylinders will simply butt against each other and be soldered together
on the inner tube or cylinder without requiring the ends thereof to be
reduced.
If the diameter of the roller or beam is so great as to require two or
more pieces of sheet metal to form the circumference thereof such pieces
will be united together by similar joints to that before described.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent,
filed by the said James Hall and George Hall in the Great Seal
Patent Office on the 29th March 1871.
TO ALL TO WHOM THESE PRESENTS SHALL COME, we, JAMES
HALL and GEORGE HALL, both of the Town and County of the Town
of Nottingham, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her
Letters Patent, bearing date the Twenty-ninth day of September, in the
year of our Lord One thousand eight hundred and seventy, in the thirty-
fourth year of Her reign, did, for Herself, Her heirs and successors, give
and grant unto us, the said James Hall and George Hall, Her special
licence that we, the said James Hall and George Hall, our executors,
administrators, and assigns, or such others as we, the said James Hall
and George Hall, our executors, administrators; and assigns, should at any
time agree with, and no others, from time to time and at all times there-
äfter 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 "IM-
PROVEMENTS IN THE MANUFACTURE OF SHEET METAL ROLLERS OR DRUMS," upon
the condition (amongst others) that we, the said James Hall and George
Hall, our executors or administrators, by an instrument in writing under
our, or their, or one of their hands and seals, should particularly describe
and ascertain the nature of the 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 James Hall and George Hall,
do hereby declare the nature of our said Invention, and in what manner
the same is to be performed, to be particularly described and ascertained
in and by the following statement thereof, that is to say :-
66
The Invention has for its object improvements in the manufacture of
sheet metal rollers or drums, which rollers or drums are applicable to
warp" and "twist" frames, to spinning machinery, and to other
purposes, and relates to the employment of a novel mode of construction
whereby great strength and "truth" are obtained. Instead of forming
the rollers or beams with a lap joint as usual we cause the joint to

page_text: radiate from the centre of the roller or beam, for which purpose we first
bend the plates of which the rollers or beams are to be made with their
edges at right angles thereto, then by the aid of a roller or mandril with
a groove formed therein we bend the plate into a tubular form with
the two edges lying flat against each other, then the two parts of the
joint are soldered together so as to form the edges into a longitudinal
rib or fin on the inside of the roller or beam in a line radiating from the
centre thereof. To form a long roller the end of one short tube is
compressed and a recess sunk therein so that one end of another tube
may be passed over it, a portion of the longitudinal rib or fin being
cut away or received in a recess formed for it, the two parts are then
soldered together so as to make a flush joint. Rollers formed as above
described are suitable to be employed for small diameters, but when
larger diameters of rollers or beams are required we make the roller or
beam double, that is with the exterior tube or cylinder formed as before
described and with an interior tube or cylinder formed in a somewhat
similar manner but with the addition of longitudinal grooves or cor-
rugations to give additional transverse strength, we prefer to employ three
of such grooves or corrugations so as to obtain the maximum of strength
combined with a more continuous support to the exterior tube or cylinder,
but other numbers of grooves or corrugations may be employed. Such
corrugations or grooves occupying only a small portion of the circum-
ference of the tube or cylinder, the other parts being portions of a circle.
The ribs or fins on the interior of the exterior tubes or cylinders are
passed into one or other of the grooves or corrugations in the interior
tubes or cylinders so as equally to distribute these ribs or fins around the
rollers or drums, the inner tubes or cylinders being passed, by preference,
halfway through the outer ones so as to break joint therewith. In this
latter case the ends of the outer tubes or cylinders will simply butt against
each other and be soldered together on the inner tube or cylinder
without requiring the ends thereof to be reduced. If the diameter of
the roller or beam is so great as to require two or more pieces of sheet
metal to form the circumference thereof, such pieces will be united
together by similar joints to that before described.
And in order that my Invention may be more clearly understood and
readily carried into effect, we will proceed, aided by the accompanying
Drawings, more fully to describe the same.

page_text: DESCRIPTION OF THE DRAWINGS.
Figure 1 is an end view; and Figures 2 and 3 are longitudinal sections
of a roller, beam, or drum, constructed according to our Invention. It
will be seen that instead of forming such beam, drum, or roller with a
lap joint as usual, we form the joint 6 in a line radiating from the centre
of the beam, for which purpose we first bend the plates of which the
rollers, drums, or beams are to be made with their edges b, b, at right
angles to the part c as shown at Figure 4, then by the aid of a roller
or mandril with a longitudinal groove formed therein we first place one
of the edges 6 in such groove, and then bend the plate around the roller
when the other edge b is also placed in the longitudinal groove, the
roller is held by wire or other suitable means in this position until the
two parts of the joint are soldered together, thereby forming a longi-
tudinal rib projecting from the inner side of the roller, drum, or beam
as shewn. To form a long roller the end of one length is compressed
to a smaller diameter as heretofore, and a recess or corrugation d is sunk
therein as shewn at Figure 2, and the end of another length which has
a portion of the joint b cut away to fit in the recess d as shown at
Figure 3 is passed over the compressed end of the first length and the two
lengths are then soldered together and a flush joint made.
Figure 5 is a cross section of another roller, drum, or beam con-
structed according to our Invention, and adapted to be employed in
cases where larger or stronger rollers, drums, or beams are required.
In this case it will be seen that we make the roller or drum double,
that is, with the exterior tube or cylinder g, formed as before described
with a joint g¹ in the shape of a rib or pin projecting from the interior
thereof, and with an interior tube or cylinder formed in a somewhat
similar manner to the tube or cylinder g with a projecting joint h³, but
with the addition of longitudinal grooves or corrugations ³ to give
additional transverse strength to the roller or drum. The ribs or fins g¹
are passed into one or other of the grooves or corrugations h³ in the
interior tubes or cylinders h, and are distributed in such a manner as
to break joint with each other, so as equally to distribute the ribs or
fins around the rollers or drums, the ribs or fins ¹ of the interior
tubes or cylinders being arranged in a similar manner. The inner tubes
or cylinders being passed by preference half way through the outer
ones g, so as also to break joint in this direction. In this case the ends
of the outer tubes or cylinders simply butt against each other and

page_text: are soldered together on the inner tubes or cylinder without requiring
the ends thereof to be reduced. If the diameter of the roller or drum
is so great as to require two or more pieces of sheet metal to form the
circumference thereof, such pieces are united together by similar pro-
jecting joints to that before-described. The grooves or corrugations h²
may be formed as shewn or other suitable form may be given to
them.
Having thus described the nature of our said Invention and the mode
in which we carry the same into effect we would have it understood that
what we claim is,―
Firstly. The manufacture of rollers or drums with the joints thereof
formed as ribs or fins projecting from the inner sides thereof, in manner
and for the purpose substantially as herein shewn and described with
respect to Figures 1, 2, 3, and 4.
And, secondly, we claim the manufacture of rollers or drums with 1
grooves or corrugations in the inner tube or cylinder to afford additional
transverse strength to the roller or drum, and to receive the projecting
rib or fin joints of the outer tube or cylinder, substantially as herein
shewn and described.
In witness whereof we, the said James Hall and George Hall, 2
have hereunto set our hands and seals, this Twenty-first day of
March, in the year of our Lord One thousand eight hundred and
seventy-one.