Improvements in Roller Bearings.
Year: 1899

page_text: Date of Application, 8th Nov., 1899
Complete Specification Left, 26th July, 1900-Accepted, 1st Sept., 1800
PROVISIONAL SPECIFICATION.
Improvements in Roller Bearings.
We, MICHEL CHARLES PHILIPPE THIERRY (signing as Ch. Thierry), Civil
Engineer, CHARLES VICTOR THIERRY, Civil Engineer, GORDON DAVID STURROCK
Mechanical Engineer, and FRANCIS FREDERICK HENRY LEWIS MENNONS (signing
as F. Mennons), Civil Engineer, all of 48, Rue de Malte, Paris, France, do
hereby declare the nature of this invention to be as follows:-
Our invention relates to improvements in roller bearings in which are em-
ployed rollers either uniform in diameter throughout their length, conical or
of other suitable shapes and provided with projecting axle ends both the roller
and axle ends being generally cast solid, though the axle ends have been some-
times forged.
According to our invention we employ hollow rollers in various forms
either cast in one piece with or shrunk on or secured to either a hollow or
solid axle the roller and axle being of the same or different materials as desired.
In one form of construction the roller may have a central hub portion con-
nected by webs to the outer portion and may be shrunk on, or cast with, a hollow
or other axle the ends of which will project the desired amount.
Rollers made in this form have advantages in lightness and in other points.
Dated this 8th day of November 1899.
improveщения и долг вагине,
We, MICHEL CHARLES PHILIPPE THIERRY (signing as Ch. Thierry), Civil
Engineer, CHARLES VICTOR THIERRY, Civil Engineer, GORDON DAVID ŠTURROCK
Mechanical Engineer, and FRANCIS FREDERICK HENRY LEWIS MENNONS (signing
as F. Mennons) Civil Engineer, all of 48, Rue de Malte, Paris, France, 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 follow-
ing statement:-
Rollers with axle ends employed in most roller bearings are generally made
solid, the axle ends being cast integrally with the roller; while in certain cases
these axle ends may also he forged.

page_text: Our invention relates to hollow rollers cast in one piece with, or fitted on
to a hollow or solid axle of suitable material such for instance as steel.
By replacing solid rollers by hollow rollers cast or shrunk on an independent
axle many advantages are obtained such as a greatly reduced weight, greater
resistance to breakage, the possibility of reducing the axle ends to a very small
diameter and finally the possibility of employing for the roller and for the axle
different materials according to the purpose in view.
In the accompanying drawing we have represented, by way of example, a
roller with pivots or axle ends constructed in conformity with our invention.
On the tube t which is preferably of steel is cast the hollow conical roller r
which is united with the tube by four radial fins forming cross bars secured
to the central hub which in turn fits tightly round the tube. The two ends ¹
and of the tube form the two axle ends of the roller.
It is evident that the external and internal parts of the roller
may take any suitable shape, and that it may be united to the inner hub by
means of two fins, by a wall or diaphragm open at each end of the roller, or
in any other suitable manner.
An important point, in case the hollow roller is cast direct on to the axle,
consists in the fact that the cooling of the cast metal constitutes an excellent
annealing medium for the central shaft, so that the latter may warp considerably
but will not easily break.
Acording to our invention we may, however, also cast or otherwise secure
the hollow roller to the central hub independently of the hollow or solid axle
forming the pivot, and subsequently slide the latter into the hub and fix the
same therein in any suitable manner.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is:
1. Hollow rollers for roller bearing devices cast or otherwise secured to a
hollow or solid axle, the ends of which, projecting over the roller proper at
each side form the pivots or axle ends, substantially as described.
2. A rollor for roller bearings constructed substantially as described and
illustrated in the drawings.
DEL
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