Improvements in the Manufacture of Wheel Rims and the like.
Year: 1899

page_text: Date of Application, 8th Mar., 1899
Complete Specification Left, 8th Dec., 1599-Accepted, 20th Jan., 1900
[Communicated from abroad by ALPHONSE ALLAGNIER, of 19, Rue Delaporte à
Maisons-Alfort, in the Republic of France.]
Improvements in the Manufacture of Wheel Rims and the like.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention to be as follows:-
This invention relates to the manufacture of wheel rims, rims of pulleys, and
metal hoops or rings without seams or welding.
In order to avoid welding by hammering or otherwise in shaped or bent metal
goods which are to be formed into rings or hoops such as used for the rims of
wheels, pulleys and for various purposes, it is proposed according to the present
invention.
1. To select a rectangular bar of metal of suitable cross section and length.
2. To form a slot in this bar in its longitudinal direction.
3. To draw apart the two portions of the bar either by lateral traction applied
thereto or by extension produced by wedges, or by any other suitable means.
4. To submit this piece to the action of the rolling mill so as to form the
same into a perfect ring without welding.
The whole of the work is carried out in a single operation and after having
previously heated the bar to a white heat.
One of the characteristic features of the invention relates to the manner of
forming the longitudinal slit in the bar for which operation two rollers are used.
These two rollers are arranged to work on a bar of any length to contain sufficient
material for the production of several rings in succession, the said rollers are
adapted to form the required slots, as well as notches in the bars by projections or
knives formed on or attached to the rollers, the said notches marking the place
where the bars are to be divided.
For this purpose each of the rollers is provided with one or more circular slotting
knives and where several such knives are provided on each roller the intermediate
projections are arranged to notch or mark the bar in the proper places for cutting
or dividing the same.
As already hereinbefore stated the bar thus slotted is now drawn apart by any
suitable means until the two longitudinal edges of the bar are sufficiently separated
to allow of the work being placed around the removably arranged roller of a rolling
mill.
The second characteristic feature of the invention relates to a special mechanical
apparatus which comprises a movable roller which can be rapidly brought to bear
upon the work the said roller being caused to descend very slowly during the
working of the mill and rapidly removed to allow of the work being taken out
for finishing or for placing it on a mandrel.
The apparatus also comprises a toothed rack which carries the said roller at

page_text: its lower end and which is guided in a frame in which is mounted a lever having its
extremities formed as toothed sectors of which the small one engages the before
mentioned toothed rack while the opposite or large sector engages a pinion. This
pinion is fast on a shaft to which is keyed the flywheel and also a worm wheel
having helicoidal teeth and which latter can be caused to engage in the teeth
of a worm pivoted to the frame and fitted with a hand wheel.
"
If it is desired to obtain a rapid raising or lowering of the roller the worm is
raised and the fly wheel operated in the desired direction to cause the pinion and
through it the lever to raise or lower the roller as required. To compress the
material by a gradual descending movement of the roller the worm is caused to
engage the toothed wheel and the parts are then operated by means of the hand
wheel.
In order to give the required curvature to the work two small rollers are
arranged in front and at the rear respectively of the operating rollers, these small
rollers being provided in carriages mounted on a spindle provided with two screw
threaded portions, one a left handed and the other a right handed screw and
adapted to be operated together by means of a hand wheel.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.
mрrоvещению in the мапатастure or wheel Rims and the like.
.
I, HENRY HARRIS LAKE, of the Firm of Haseltine, Lake & Co., Patent Agents,
45 Southampton Buildings, in the County of Middlesex, do hereby declare the
nature of this invention and in what manner the same is to be performed, to be
particularly described and ascertained in and by the following statement:-
This invention relates to the manufacture of wheel rims, rims of pulleys, and
metal hoops or rings without seams or welding.
The invention is illustrated in the accompanying drawing in which,
Figures 1, 23 and 4 show a metal blank in the various stages of its manufacture
into a ring or hoop.
Figure 5 shows a pair of rollers for forming the slots in the said blank as
shown in Figure 2.
Figure 6 shows a length of slotted bar from which a number of rings may be
formed and
Figure 7 is a side elevation and partial front view of a machine for finishing the
metal ring or hoop.
In order to avoid joining or welding, by hammering or otherwise, the two
extremities of a curved piece of metal in order to obtain a ring or annular rim
of any kind such as metallic tyres for the wheels of vehicles or for other wheels,
pulleys, hoops, and so forth, I proceed in the following manner:
I first take a metal bar of suitable section and length as shown in Figure 1 and
partially slot the same in the direction of its length from e to d as shown in
Figure 2, after which the parts a bon either side of the slot are separated as
shown in Figure 3, either by external lateral traction, or by extension produced by
wedges or in any other suitable manner. The blank thus treated is then
passed through a rolling mill in order to obtain a perfect and jointless ring as in
rigure 4.

page_text: All this is effected in a single operation the bar having been previously raised
to a white heat.
One of the characteristic features of my invention consists in the manner of
forming the longitudinal slot in the bar by the use of two rolling cylinders ef as
shown in Figure 5.
In the drawing I have shown by way of example, two cylinders adapted to
operate on a bar of indefinite length, capable of furnishing the material necessary
for several successive rims or hoops, and slotting each of its parts, the length
of which is marked by projections g, where the division of the multiple bar shown
in Figure 6 will ultimately be effected.
Each of these rolling cylinders ef is provided, in proportion to its diameter,
with one or more slotting fillets hand. in the case of multiple fillets, with projec-
tions g forming the guide marks for the division of the bar.
As above stated, when the bar has thus been slotted the sides a bare separated
in any suitable manner to such an extent as to permit this part to surround the
movable rolling cylinder hereinafter described.
The second characteristic feature of this invention is based upon the machine
or apparatus shown in Figure 7 which permits of a movable cylinder or roller r
being rapidly depressed upon the part to be rolled, and of then depressing the
said cylinder or roller gently during the rolling, and of rapidly raising the cylin-
der in order to eject the part when rolled and set or trim it or pass it to the
mandrel.
This machine or apparatus comprises a rack carrying the cylinder or roller
at its lower end ; it is guided in the frame & in which it is displaced vertically
by a lever each extremity of which is formed with a toothed sector, one of
which sectors engages with the said rack, whilst the other sector gears with a
pinion m. The pinion m is rigidly connected with the shaft which also carries
a fly wheel and a wheel p provided with helicoidal teeth which may be placed in
engagement with an endless screw 7 pivoted at g to the frame and carrying an
operating wheel r.
If it is desired to rapidly raise or depress the cylinder or roller the endless
screw is raised and the wheel o actuated in the desired direction thereby impart-
ing to the cylinder or roller the required vertical movement by means of the
pinion m and the lever 7. If, on the other hand, it is desired that this cylinder
should slowly descend upon the part to be rolled the endless screw is caused to
engage with the teeth of the wheel and the same parts are actuated by means
of the wheel r.
Further in order to impart the desired curvature to the rim or the like I arrange
opposite the cylinders or rollers r. y two lateral rollers s supported in carriages f
mounted upon a shaft u provided with a double screw thread, one a right and
the other a left-handed thread, and actuated simultaneously by means of a wheel .
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondent, I declare that what I claim is :-
1. A process for the manufacture of jointless rims, pulleys, hoops, metallic
tyres, and so forth characterised by the combination of two cylinders upon the
circumference of which are provided slotting fillets and projections for making
guide marks, for the purpose of slotting the blank longitudinally and for a prede-
termined length, in one or more places, the said blank being adapted to be con-
verted into imperfect rings or hoops by the separation of the sides of the slot.
2. The combination of a fixed rolling cylinder y and a movable rolling cylinder r
around which the imperfect rings or hoops above referred to are engaged, this
latter cylinder being maintained at the base of a vertical rack in engagement with
a lever provided with sectors and actuated at will, either rapidly by means of a
pinion and a fly wheel or slowly by the said pinion, a helicoidal wheel in connection
with an oscillating endless screw and a fly wheel r.

page_text: 3. The combination of the device above described with two rollers s for giving
the desired curvature to the rim, these rollers being mounted upon two carriages
actuated simultaneously by a shaft provided with a right and left handed screw
thread engaging similar screw threads on the said carriages.;
Dated this S8th day of Desember 1900.
HASELTINE, LAKE & Co.,
45, Southampton Buildings, London, W.C.,
Agents for the Applicant.