IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OR FINISHING OF TYRES, HOOPS, AND RINGS
Year: 1856

page_text: LETTERS PATENT to Richard Archibald Brooman, of 166, Fleet Street, in
the City of London, Patent Agent, for the Invention of "IMPROVEMENTS IN
MACHINERY FOR THE MANUFACTURE OR FINISHING OF TYRES, HOOPS, AND
RINGS." A communication from A. Duboy, of Givors.
Sealed the 24th October 1856, and dated the 9th May 1856.
PROVISIONAL SPECIFICATION left by the said Richard Archibald Brooman-
at the Office of the Commissioners of Patents, with his Petition, on the
9th May 1856.
I, RICHARD ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of
London, Patent Agent, do hereby declare the nature of the said Invention
for "IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OR FINISHING OF TYRES,
HOOPS, AND RINGS," (communicated to me by A. Duboy, of Givors, a foreigner
residing abroad,) to be as follows:-
This Invention refers to machinery for flattening or finishing metal tyres,
hoops, and rings. In this improved machinery the Inventor employs two
grooved rolls or cylinders, one placed above the other, and so arranged that
when the rolls are in working position the projections on one roll may come
opposite the grooves in the other, and vice versa. The rolls are supported and
revolve in bearings formed in pedestals fixed to a suitable platform or base
plate. The rolls are held and brought together, and the distance to which

page_text: they approach each other is regulated by screws working in nuts in the top of
the pedestals; the screws are actuated by pinions and winches, by gearing, or
by levers. The rolls are made to revolve by suitable arrangements in the
usual manner. The upper roll is coupled to its driving shaft by long coupling,
supported on an upright, and so constructed as to allow the roll shaft to move
backward and forward in it. The upper roll is raised and lowered in its
bearings by means of weighted levers, and is withdrawn and brought forward
by a rack attached to a lug on a collar, which embraces a groove in the roll,
the roll, however, being free to revolve within the collar. The rack is actuated
by a pinion on a shaft and winches. The machinery works as follows:-The
upper roll is first raised by the weighted levers and drawn back by the
rack, and the tyre or hoop to be flattened or finished is placed in a groove
in the lower roll, shaped to, correspond with the external contour desired to be
given to the wheel; the upper roll is then brought forward, lowered into its
place by the lever, and screwed down to bear against the inner surface of the
tyre. Rotary motion is communicated to the rolls as usual.
SPECIFICATION in pursuance of the conditions of the Letters Patent, filed
by the said Richard Archibald Brooman in the Great Seal Patent Office
on the 8th November 1856.
TO ALL TO WHOM THESE PRESENTS SHALL COME, I, RICHARD
ARCHIBALD BROOMAN, of 166, Fleet Street, in the City of London, Patent
Agent, send greeting.
WHEREAS Her most Excellent Majesty Queen Victoria, by Her Letters
Patent, bearing date the Ninth day of May, in the year of our Lord One
thousand eight hundred and fifty-six, in the nineteenth year of Her reign, did,
för Herself, Her heirs and successors, give and grant unto me, the said
Richard Archibald Brooman, Her special licence that I, the said Richard
Archibald Brooman, my executors, administrators, and assigns, or such others
as I, the said Richard Archibald Brooman, my 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'
"IMPROVEMENTS IN MACHINERY FOR THE MANUFACTURE OR FINISHING OF TYRES, HOOPS,"
AND RINGS," communicated to me by A. Duboy, of Givors, a foreigner residing
abroad, upon the condition (amongst others) that I, the said Richard Archibald

page_text: Brooman, my executors or administrators, by an instrument in writing under
my, 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 I, the said Richard Archibald Brooman, do hereby
declare the nature of the 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, reference being had to the Drawings annexed,
that is to say:
This Invention refers to machinery for rolling, flattening, or finishing metal
tyres, hoops, and rings. In this improved machinery the Inventor employs
two grooved rolls or cylinders, one placed above the other, and so arranged
that.when the rolls are in working position the projections in one roll may
come opposite the grooves in the other, and vice versa. The rolls are
supported and revolve in bearings formed in pedestals fixed to a suitable
platform or base plate. The rolls are held and brought together, and the
distance to which they approach each other is regulated by screws working
in nuts in the top of the pedestals; the screws are actuated by pinions
and winches, gearing levers, or by any suitable means. The rolls are made
to revolve by means of suitable arrangements in the usual manner. The
upper roll is coupled to its driving shaft by long coupling, supported on an
upright, and so constructed as to allow the roll shaft to move backward and
forward in it. The upper roll is raised and lowered in its bearings by means
of weighted levers or hooked rods, and is drawn back and brought forward by
means of a rack attached to a lug on a collar, which embraces a groove in the
roll, the roll, however, being free to revolve within the collar. The rack is
actuated by a pinion on a shaft and winches. The action of the machinery
is as follows:-The upper roll is first raised by the weighted levers and drawn
back by the rack, the tyre or hoop to be flattened, rolled, or finished is placed
in a groove in the lower roll, shaped to correspond with the external contour
desired to be given to the hoop or tyre; the upper roll is then brought
forward, placed through the hoop or tyre, lowered into its place by the lever,
and screwed down to bear against the inner surface of the tyre. Rotary
motion is communicated to the rolls in the usual or any suitable nianner. The
manner in which the Invention is- carried into effect is exemplified in the
Drawings annexed.
Figure 1 is a front elevation, Figure 2 a side view, and Figure 3 a plan,

page_text: of a machine constructed according to the present improvements. A and B
are grooved rolls, the roll A being placed above the roll B, and they are so
arranged that when in working position the grooves in the roll A may comè
opposite the projecting parts in the roll B, and vice versa. C, C, are weighted
levers for raising and lowering the roll A; D is the rack for bringing the roll
backward and forward. This rack is attached to a lug d on a collar d', which
embraces a groove in the roll A, the roll, however, being free to revolve within
the collar. The rack is actuated by a pinion d², and crank handles d³. E is
the coupling for connecting the roll A to its driving shaft J, the coupling is
supported on au upright F, and is so constructed that the roll shaft moves
backward and forward within it. G, G' are pedestals composing a framework
in which the rolls are mounted; H is a pedestal or guide frame, in which the
roll A travels backward and forward; K, coupling for the transmission of
rotary motion from the driving shafts to the roll shafts J, J; L is the base
plate, to which the pedestals or framework G, H, are firmly secured; M,
screws working in nuts at the top of the pedestals, for bringing the roll A to
the proper distance from the roll B to bear against the inner surface of the
tyre; N, toothed wheel for actuating the screw M.
Figure 4 is an end view, Figure 5 a side view, and Figure 6 a plan, of a
modification of this improved machinery, in which hooked arms are employed
instead of weighted levers for raising and lowering the top roll, a weighted
lever being used, however, in connection with the last pedestal, in order to
steady the upper roll, or hold it in equilibrium when disengaged from the
lower roll, for the introduction of the hoop or tyre.
In these Figures the parts similar to those shewn in Figures 1, 2, and 3 are
indicated by the same letters as in those Figures. 0, 0, Figure 4, are
hooked arms for raising the roll; they are connected at one end to a beam or
bracket P, mounted on the shoulder m of tho screw M, and hook on to the
under journal or bearing of the top roll A. The pedestals G and G¹ are made
in two pieces, that is to say, they are provided with cap's Q, Q, having bosses
or projections, which carry plummer blocks or standards R, R', through the
ends which the screws M, M, pass. These brackets also carry bevil toothed
wheels S for tightening and loosening the screws, and they are provided
with brackets, which carry a cross piece Tin which is mounted inter-
mediate gearing for regulating the action of the screw. Z, Z, are tie bolts
connecting the cross pieces; U is a bevil toothed wheel, mounted on the
bracket R¹ of the pedestal G, into which gears another toothed wheel V, which
is mounted on the shaft of a steam engine X, and which transmits motion
therefrom to the screws, which are thus worked up and down in their nuts by

page_text: the reciprocating action of a steam engine. The pedestal H has no cap, and
is provided with weights for steadying the roll A, or keeping it in a horizontal
position, when out of the grooves of the lower roll. On each side of the
machine are friction rollers, mounted in brackets Y, Y, connected to the
pedestals G, G. These friction rollers are for keeping the hoop or tyre
smooth and round, and of the desired diameter; they are brought nearer to or
further from each other by tightening screws or otherwise.
In the front view, Figure 4, a finished tyre is represented between the rolls
with the friction rollers. The brackets R, R', have holes for receiving stays or
stops for breaking shocks or preventing jerks, and there are also holes in the
lugs through which pass tie pieces to connect the plummer block of the steam
engine with other parts of the machinery.
And having now described the nature of the said Invention, and in what
manner the same is to be performed, I declare that I claim the means and
contrivances herein-before described for raising and lowering and for imparting
to and fro motions to the upper roll employed in the rolling and finishing of
tyres, hoops, and rings.
In witness whereof, I, the said Richard Archibald Brooman, have
bereunto set my hand and seal, this Seventh day of November, One
thousand eight hundred and fifty-six.