IMPROVEMENTS IN MACHINES FOR ROLLING TIRES
Year: 1884

page_text: "
I, WILLIAM ROBERT LAKE, of the firm of Haseltine Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex, do hereby declare the nature
of my invention for "IMPROVEMENTS IN MACHINES FOR ROLLING TIRES (a corn-
munication from James Munton of Maywood, Chicago, Illinois United States of
America Tire-Roller), and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement :-
In tire rolling machines heretofore in use, one of the two rolls, usually the outer
or fixed one which forms the flange of the tire, has been made with deep flanges
or collars, and the other roll has been made smooth or plain so as to fit between
these flanges or collars. The greatest difficulty in the practical operation of these
rolls, is owing to the fact that however accurately or closely the smooth or plain
rull fits between the flanges or collar of the other roll, a thin film or fin of steel
will be formed or forced out at the upper and lower corners of the bloom or tire
between the smooth or plain roll, and the flanges or collars of the other roll, which
fin, being thin, of course cools and hardens very quickly and soon cuts or wears
away the corners of the smooth or plain roll and widens the space between it and
the flanges or collars of the other roll, which only increases the size of the fin and
aggravates the trouble. The fin thus formed not only so injures the rolls that they
cannot be used, and increases the friction and power required to run them, but, after
the rolling is completed, this fin is still left upon the tire, and must be chipped off
or removed, thus materially increasing the labor and expense of making the tire.
Heretofore the fin has usually been chipped off by hand with a cold-chisel. If the
rolls are new and fit close the fin forms slowly at first when the rolling begins, but
after the fin once begins to form it continually increases in size as the rolling
proceeds, because the fin crowds the rolls apart and wears them away; and if, as
is usually the case, a larger fin forms on one corner than the other, or the fin begins
to form first on one corner, the tendency will be to crowd the smooth or plain roll
up or down and increase the wear upon one of its corners and the consequent size
or thickness of the fin, until the roll is spoiled and no longer fit for use. After the
olls become a little worn, so that the larger fins are formed, the labor of chipping
them off is proportionately increased, and often the tire is left so rough that it is
ID 271

page_text: necessary to partially roll the bloom in one set of rolls and finish rolling the tire
in another set of rolls, thus requiring two operations.
My invention consists in the means I employ, and they are simple as well as
effective, to overcome these difficulties.
In my invention both rolls are provided with flanges or collars, the flanges or
collars being short so that the depth of the two flanges or collars only equals the
thickness of the tire to be produced. No fin can therefore be formed at the corners
of the blom, and the corners of the tire when it is rolled will of course be perfect.
The slight fins which will be formed, as the rolling proceeds, on the top and
bottom edges of the 'tire at the points where the flanges or collars of the two rolls
come together, are cut or shaved off as fast as they are formed by knives or cutters
mounted adjustably on the frame-work of the machine, one above and one below
tlre tire and parallel with its top and bottom edges or faces. As the fin is cut off
in this way almost as soon as it is formed, it does not become cool or hard or grow
to any size so as to wear or injure the rolls or increase their fiction or the power
required to run them. The bluom being also boxed in, so to speak, at its corners
by the flanges or collars of the rolls, there is naturally very little tendency for a
fin to form in the middle of the edges of the tire where the flanges of the rolls
come together; and the fin being removed as quick as it is formed, its accelerating
tendency to grow or increase in size is of course prevented, and the edges of the
tire are kept perfectly smooth by the cutters, so that after the rolling is complete<!
no finishing is required. Either revolving or stationary cutters may be used or
both. The action of rotary cutters I deem preferable to that of stationary or bar
cutters.
If rotary cutters are employed, they may preferably consist each of a steel ring,
and they may both be secured to the same roller, the roller being provided with
two flanges or collars to fit astride the bloom or tyre. The cutter rings may be
-secured to the flanges by screw-threads, and one of the rings should be of larger
interior diameter than the other, so as to fit loosely over the flange to which the
smaller ring is secured.
When the tire is rolled with its thick edge or flange down, the pressure of the
rolls, when the rolling begins, upon the wedge-shaped bloom-wedged shape in
cross-section-,causes the bloom to raise or tip up from its bed or supports, thus
giving the bloom or tyre a kind of wabbling or gyratory motion, that is to say it
does not revolve steadily in the same plane, or lic fat upon its supporting rollers.
This tendency of the bloom or tyre to raise or tip from its bed would tend to cause
more or less of a side strain upon the rotary cutters and to cause the tire or bloom
to bind therein. To obviate any danger of the tire binding in the rotary cutters
from this cause, I prefer to employ in connection with the rotary cutters, a pair of
stationary cutters one above and one below the tire or bloom which will serve t
cut away the fins that may form on the edges of the bloom when the rolling
commences, and until this wabbling motion or tipping tendency of the bloom ceases.
These stationary cutters, whether rotary cutters be employed in connection there-
with or not, may preferably consist of square or rectangular bars of steel, and
they should be ret with their faces at a slight angle to the plane of the tire, so as
to present a cutting edge thereto. To prevent this cutting edge digging into the
tyre when the rolling begins, and when the bloom raises or tips up with great force,
the upper knife or bar should be placed to the left of the rolls or in the direction
that the tire is running, so that when the bloom tips it will tend to bring the same
parallel to the face of the bar instead of tending to increase the inclination of the
bar to the tyre, as it would do if it were placed on the opposite side of the rolls;
and the same relative arrangement is adopted in regard to the lower cutter-bar for
'the same reason. By inclining the face of the cutter bars slightly and arranging
them in this way, the tendency of the knives to dig or cut into the bloom when
the latter tips or raises up from its bed, is prevented, so that the bloom may
be readily rolled with its thick edge or flange down and the fin severed by the
knives.

page_text: may be adjusted in or out by a screw or other suitable means, so that the operator
may apply the rotary cutter at any time desired and to tires of different diameters.
The cutter rings are also adjustable on their flanges, so as to adapt them for use
upon tires of different widths.
In the accompanying drawing which forms a part of this specification, and in
which similar letters of reference indicate like parts-
Figure 1 is a plan view of a device embodying my invention.
Figure 2 is a side elevation of the same.
Figure 3 is an end view of the lower stationary cutter.
Figure 4 is an end view of the upper stationary cutter, and
Figure 5 is a section on line 5-5-of figure 1, centrally through the rotary
cutter.
Figures 6 and 7 are side and plan views respectively, of the lower stationary
cutter, showing its means of adjustment.
Figure 8 is a front side view of the upper stationary cutter, and
Figure 9 a side elevation of the rolls.
In said drawing A, represents the frame or bed of the machine, B the movablo
or pressure roll and B¹ the outer or main roll.
The rolls B and B¹ are each provided with similar flanges or collars, b, b', between
which flanges or collars the bloom or tire is confined while being rolled. The
depth of the two flanges or collars, b, b, should be about equal to the thickness of
the tire to be rolled. One of the rolls, B¹, is provided with a groove b² at its lower
edge or corner, to form the flange of the tire. The mechanism for setting the
pressure roll up against the fixed roll as the rolling proceeds, is, or may be, of any
ordinary well known construction, and need not therefore be further described.
C represents the bloom or tyre, and C¹ the supporting rollers journaled on the
bed of the machine upon which the tyre rests and revolves around as it is being
rolled. D and D¹ are the upper and lower rotary cutters, secured by screw threads.
to the flanges & d of the roller D. The aperture in the cutter ring D¹ is of larger
diameter than that in the cutter ring D, so that it will drop over the flange d.
The roller D is journaled upon a sliding block or carriage D³ mounted in a suitablo
recess or guide way in the frame or bed of the machine, and this block is provided
with a hand-screw D*, by means of which the rotary cutters may be moved to and
from the tyre.
The flanges dd project from the roller D, so as to fit over the edges of the tyre.
The flange is provided with a shoulder or flange at its lower edge against
which the cutter-ring D¹ may be set or screwed firmly. And the cutter ring D is
provided with a flange da at its upper edge, which is adapted to bear against the end
(which serves as a shoulder) of the roller D2 when the cutter ring D is screwed
home. The cutter-rings D D₁ may be adjusted to or from each other so as to operate.
upon tires of different widths by placing the collars or washers d³ between the
Hanges and the roller.
E and F are the upper and lower stationary cutters, consisting preferably, of
square or rectangular bars of steel. The stationary catters E and F, are preferably
set at an angle to the radius of the tire so that it will tend to break or tear off the
fm instead of directly cutting or shearing it off, as it would have to do if it were set
radially. The lower cutter-bar, F, is firmly supported and clamped between two
horizontal clamp bars f and f¹, by suitable bolts f, and the clamp-bar fis dove-
tailed with a vertical plate f³, secured to the frame of the machine so as to slide
vertically thereon, and thus effect the vertical adjustment of the cutter-bar F. The
vertical movement or adjustment is imparted to the clamp-bar f by means of an
adjusting screw f', nut f³, and wedges fe attached to said screw which operate on the
under side of said inclined clamp-bar f. The cutter-bar F is arranged on a level
with the supporting rollers C¹, and it is set with its face at a slight inclination or
angle to the plane of the tyre, as shown in Figs. 2 or 3, so as to present a cutting
edge to the tyre when the same is running or resting upon its horizontal bed, and

page_text: it is arranged on the right hand side of the rolls, so that when the tire or bloom
tips or raises from its bed, it will diminish instead of increase the inclination of the
cutter-bar face to the tire, and thus prevent the bar cutting or digging deeply into
the bloom. And the upper cutter-bar E, is arranged on the opposite or left-hand
side, and its face inclined at a similar angle for the same purpose. The cutter E is
secured to a movable slide e by means of a set-screw e¹, which slide e is adjustable
up and down in the case or frame e, by means of the adjusting screw e³. The
cutter-bar E also serves to press the tire down flat upon the supporting rollers C¹
and cutter-bar F. On a similar adjustable slide, mounted in the case or frame E'
on the opposite side of the rolls, B, B', a roller is journaled which also serves to
keep the tyre flat upon its supports. G and G₁ are the two vertical rollers which
together with the rolls, B, B¹, constitute the three points of the circle, and serve to
give the tire its circular form. These rollers, G, G¹, are mounted on the pivoted
segments H and H', and are swung in or out according to the increased or diminished
diameters of the tyre by means of the right and left hand worm wheel H2, which
engage with the teeth of the segments H, H'.
In practicing my invention, the rotary cutter rings D and D' may, if preferred,
be secured to separate rollers instead of to a single roller as shown, and, if desired,
the rotary cutter rings may be mounted on the vertical guide rollers G or G¹ by
providing said rollers with suitable flanges, but the method herein shown is what
I deem to be the best way known to me of practicing my invention.
The rotary cutters may preferably consist of the roller D2, having flanges &
and provided with cutter-rings D and D¹ made of steel, as shown, so that the
cutter-rings may be removed and replaced by others when worn, and so that the
cutters may be adjusted to or from each other to accommodate tires of different
widths, but the cutter-rings may of course be made integral with the roller D' or
its flanges.
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
1. In a tyre rolling machine the combination of the rolls and tire supports or
rollers, of a cutter for removing the fin formed upon the tire as it is rolled,
substantially as specified.
2. In a tire rolling machine, the combination with the tire supports or rollers,
of the rolls B and B provided with flanges or collars 6 61 to embrace the bloom or
tire and prevent the formation of fins at its corners, and a device for removing fins
from the edges of the tire or bloom as it is rolled, substantially as specified.
3. In a tire rolling machine, the combination with the rolls B and B¹ provided
with flanges or collars to embrace the bloom or tyre, of the upper and lower cutters
for removing fins from the edges of the tire or bloom and smoothing the same as it
is rolled, substantially as specified.
4. In a tire rolling machine, the combination with the rolls and tire supports
or rollers, of a rotary cutter for severing the fin formed upon the tire as it is rolled,
substantially as specified.
.
5. In a tire rolling machine, the combination with the rolls and tyre supports or
rollers of an upper and lower rotary cutter secured to a single roller or shaft,
substantially as specified.
6. In a tire rolling machine, the combination of the rolls B and B¹, provided
with flanges to embrace the tire or bloom, of upper and lower rotary cutters for
severing fins from the edges of the tire or blooin as it is rolled, substantially as specified.
7. In a tire rolling machine, the combination of the rolls B and B provided
with flanges b b¹ to embrace the tire or bloom, of a supplemental roller D³ provided
with flanges & d' furnished with cutting rings or edges D D' for severing the fins
from the edges of the tire or bloom as it is rolled, substantially as specified.
8. The combination of the roller D³, provided with flanges d d', and cutting
rings D D' secured to said Hangos, substantially as specified.

page_text: 9. The combination of the roller D2 having flanges d d', provided with
shoulders d d and cutter rings D D secured to said flanges by screw threads, so
that said cutter rings may be adjusted to or from each other, substantially as
specified.
10. The combination with the rolls, of upper and lower rotary cutters, and the
upper and lower stationary cutters, substantially as specified.
11.-The combination with the rolls B and B provided with flanges to embrace
the tire or bloom, of the upper and lower stationary cutter bars E and F, having
their operative faces set at an angle to the plane of the tire, and arranged one on
each side of the rolls in relation to the inclination of said operating faces, so that
the raising or tipping of the tyre from its bed will diminish the inclination of said
faces to the tire and thus prevent the bars cutting into the tire or bloom, substantially
as specified.
12. In a tire rolling machine, the combination of tire supports or rollers with
the rolls, and an upper and lower cutter-bar, said cutter bars being adjustable and
set at an angle to the radius of the tire, substantially as specified.
Dated the 28th day 01 October 1884.
HASELTINE, LAKE & Co.,
For the Applicant.
HASELTINE, LAKE & Co.,
For the Applicant.