Improvements in Roller Bearings.
Year: 1899

page_text: 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:-
This invention relates to improvements in roller bearings.
At present such bearings have been used either directly in connection with
the shaft or the like or upon an interposed socket or sleeve rigidly connected
to the shaft.
According to our invention we employ upon the shaft or the like a loose
socket or sleeve which may be in one piece or in several pieces secured together
the sleeve being practically of the same inner diameter as the outer diameter
of the shaft or the like so that it will be normally carried around with the
shaft provided that the sliding friction between the shaft and the sleeve exceeds
the rolling friction between the rollers and the sleeve but will allow the shaft
to turn therein should the rollers -not act properly or sufficiently.
It also allows the shaft to be even in its diameter throughout which is a
great advantage especially in the case of conical rollers as the sleeve may be
made to conform with the diameter of the shaft inside and be tapered or conical
on the outside.
In conical roller bearings the adjustment may be effected by such sleeve or
by the bearing surface forming the outer path of the rollers either being ad-
justed laterally with the shaft by some suitable arrangement as by a loose part
controlled by an adjusting screw or the like.
In marine thrust bearings the loose sleeve either in one or several parts
and preferably hollow is conical exteriorly and is adapted to turn on a straight
shaft the thrust being imparted to it by a sleeve keyed or screwed upon such
shaft and through which sleeve the adjustment may be effected.
The conical rollers in this case impart the thrust to a fixed bearing block
provided with suitable faces and the arrangement is duplicated so as to take
up both backward and forward thrust.
In marine shafting also in place of a single thrust bearing a number of such
as to distribute the
bearings are preferably distributed along the shaft so
thrust over a long extent of same.
1
P
1800
PHILIP M. JUSTICE,
Chartered Patent Agent,
55 & 56, Chancery Lane, London,
For the Applicants.

page_text: 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 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 improvements in roller bearings.
At present such bearings have been used either directly in connection with
the shaft or the like or upon an interposed socket or sleeve which has always been
rigidly connected to the shaft.
According to our invention we employ upon the shaft or the like a loose
socket or sleeve which may be in one piece or in several pieces secured together
the sleeve being practically of the same inner diameter as the outer diameter
of the shaft or the like so that it will be normally carried around with the
shaft provided that the sliding friction between the shaft and the sleeve exceeds
the rolling friction between the rollers and the sleeve but will allow the shaft
to turn therein should the rollers not act properly or sufficiently.
It also allows the shaft to be even in its diameter throughout which is a
great advantage especially in the case of conical rollers as the sleeve may be
made to conform with the diameter of the shaft inside and be tapered or conical
on the outside.
In conical roller bearings the adjustment may be effected by such sleeve or
by the bearing surface forming the outer path of the rollers either being ad-
justed laterally with the shaft by some suitable arrangement as by a loose part
controlled by an adjusting screw or the like.
In marine thrust bearings the loose sleeve either in one or several parts
and preferably hollow is conical exteriorly and is adapted to turn on a straight
shaft the thrust being imparted to it by a sleeve keyed or screwed upon such
shaft and through which sleeve the adjustment may be effected.
The conical rollers in this case impart the thrust to a fixed bearing block
provided with suitable faces and the arrangement is duplicated so as to take
up both backward and forward thrust.
In marine shafting also in place of a single thrust bearing a number of such
bearings are preferably distributed along the shaft so as to distribute the
thrust over a long extent of same.
In order that the invention may be understood, we have represented some
forms of same in the accompanying drawing in which,
Fig. 1 is a vertical section through the axle box of a railway vehicle.
Fig. 2 is an end view of the same box partly in section.
Fig. 3 is a sectional plan of a marine thrust block arranged for forward and
for back motion, the right hand portion being in elevation.
Fig. 4 represents diagrammatically a marine main shaft provided with a
series of thrust bearings with conical rollers enabling each bearing to be inde-
pendently adjusted.
In Figs. 1 and 2, a is the axle on which is slid the loose sleeve b up to the
projection a¹ of the axle. The exterior of the sleeve is properly shaped so as
to serve as a roller path and as a guide for the conical rollers c. The interior
is bored or otherwise shaped to approximately the same diameter as the axle

page_text: so as to move with but slight friction on the latter. As seen in Fig. 2, the sleeve
is completely surrounded by rollers separated by discs ce carried by the spindles
of the rollers. Outside the rollers and inside the axle box is a sleeve & suitably
shaped and capable of being adjusted in a longitudinal direction by means of a
belf e controlled by a screw f operated from outside.
for
In Fig. 3 the shaft 9 passes through a fixed bearing carrying the two
fixed roller bearing surfaces, one i for forward motion and the other
back motion. Opposite each of these two guide surfaces i and the two loose
sleeves and ¹ are mounted on the shaft g, the sleeves consisting of one or
several pieces suitably connected and forming the movable roller bearing surface.
The rollers m separated by discs c¹ are placed between the two bearing sur-
faces. In this case the thrust pressure and consequently the driving motion of
the loose sleeves is transmitted to them by the split collars or n which are
firmly keyed on the shaft in any suitable way. The adjustment of the rollers
is effected by displacing the collars and n³ in a longitudinal direction, whereby
the sleeves and may be adjusted.
We would remark that by the use of our loose sleeves we entirely dispense
with any kind of fixed collars or shoulders on the shafts, which is of a great
importance especially in the case of marine main shafts. The longitudinal
displacement of the thrust collars may be obtained by means of a number of
screw threads arranged on the shaft and in the interior of the collars.
From the preceding it will be readily understood that the loosely mounted
sleeve admits of various applications to any of the existing roller bearing
devices.
Fig. 4 represents several thrust bearings with adjustable loosely mounted
sleeves adapted to distribute the total thrust strain over a long extent of the
shaft.
The loose sleeves may be made of cast iron, bronze, steel, or any other suitable
material.
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. In a roller bearing the use of a sleeve formed either in one or several pieces
mounted loosely on the shaft and serving as an internal roller for the rollers,
the fit of the sleeve upon the shaft being such as to enable it to act as an ordinary
bearing, in case the roller device should not operate, substantially as described.
2. In a roller bearing of the kind described in the preceding claim, and in
which the rollers are conically arranged, the adjustment of the parts by the axial
displacement of the outer roller bearing surface, the loose sleeve being fixed
as far as longitudinal movement is concerned, substantially as described.
3. In a roller bearing of the kind described in the first claim, the adjustment
of the parts by the axial displacement of the loosely mounted collar, substan-
tially as described.
4. The roller bearing substantially as described and illustrated in Figs. 1
and 2.
5. The roller bearing substantially as described and illustrated in Fig. 3.