Improvements in Aunular Lubricating Bearings.
Year: 1899

page_text: Date of Application, 29th Dec., 1899
Complete Specification Left, 29th Oct., 1900-Accepted, 22nd Dec., 1900
Improvements in Aunular Lubricating Bearings.
I, WILHELM HARTMANN, of No. 4, Löwenstrasse, Offenbach-on the-Main, in
the Empire of Germany, do hereby declare the nature of this invention to be
as follows:-
-
It is a frequently observed fact that any improvements of mechanical parts
and the like after they have come into use appear so simple and appropriate
that it causes wonder that they have not been made before. This is the case
with the object of the present invention. Annular lubricating bearings have
hitherto been made exclusively by forming the inner bearing cup in one piece
with the outer bearing casing. This construction has however several con-
siderable drawbacks; first, (if only a subsidiary one), the casting was difficult.
Then as the uuder half of the bearing also serves as an oil container, the main
and greatest drawback of this construction consisted in the fact that the oil
chambers in the interior were absolutely inaccessible and it was therefore impos-
sible to entirely remove the moulding sand therefrom, and it is evident that
evils are thereby produced which essentially diminish the utility or advantages
of annular lubrication. In addition to these there are further small drawbacks,
such for instance as loss of oil, which in the older forms of construction is caused
by the travelling of the oil along the upper part towards the outside, and so
forth.
This invention has for its object an improved construction of bearing in which
all these drawbacks are avoided, and which in all its parts is fully and easily
accessible, so that it is impossible for moulding sand to remain in the oil chamber.
The halves of the bearing and of the casing are no longer made in one piece,
but the casing is firmly mounted on the foot and forms an everywhere accessible
chamber which if necessary can also be easily operated on or worked internally.
The actual bearing cup which has recesses for the lubricating rings is mounted
with a spherical bearing in the casing, so as to be movable within given limits.
It is only therefore connected with the bearing casing at the spherical surfaces,
whilst both ends are free and prevent any conveyance of the oil to the outside.
The oil chambers on each side of the spherical hearing are connected by a
passage. The bottom of the oil container is preferably arranged with a slope
or fall to one side so that an outlet opening which may be closed by means of a
simple screw with a tapering point may be provided which is sufficient for the
discharging or emptying of the receptacle. A suitably arranged opening is also
provided for the introduction of the oil.
1000

page_text: Improvements in Annular Lubricating Bearings.
1, WILHELM HARTMANN, of No. 4, Löwenstrasse, Offenbach-on the-Main, in
the Empire of Germany, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
It is a frequently observed fact that any improvements of mechanical parts
and the like after they have come into use appear so simple and appropriate
that it causes wonder that they have not been made before. This is the case
with the object of the present invention. Annular lubricating bearings have
herto been made exclusively by forming the inner bearing cup in one piece
with the outer bearing casing. This construction has however several consider-
able drawbacks; first, (if only a subsidiary one), the casting was difficult. Then
as the under half of the bearing also serves as an oil container, the main and
greatest drawback of this construction consisted in the fact that the oil chambers
in the interior were absolutely inaccessible and it was therefore impossible to
entirely remove the moulding sand therefrom, and it is evident that evils are
thereby produced which essentially diminish the utility or advantages of annular
lubrication. In addition to these there are further small drawbacks, such for
instance as loss of oil which in the older forms of construction is caused by the
travelling of the oil along the upper part towards the outside, and so forth.
This invention has for its object an improved construction of bearing in which
all these drawbacks are avoided, and which in all its parts is fully and easily
accessible, so that it is impossible for moulding sand to remain in the
chamber.
In the accompanying drawing;
Figure 1 is a longitudinal section; and
oil
Figure 2, a vertical cross section in two different planes of this improved
bearing.
As may be seen in the said drawings, the halves of the bearing and of the
casing are no longer made in one piece, but the casing a is firmly mounted on
the foot and forms an everywhere accessible chamber which if necessary can
also be easily operated on or worked internally. The actual bearing cup which
has recesses d for the lubricating rings e is mounted with a spherical bearing f
in the casing a, so as to be movable within given limits. It is only therefore
connected with the bearing casing at the spherical surfaces, whilst both ends are
free and prevent any conveyance of the oil to the outside.
The oil chambers on each side of the spherical bearing are connected by a
passage g. The bottom of the oil container is preferably arranged with a slope
or fall to one side so that an outlet opening which may be closed by means of
a simple screw with a tapering point may be provided which is sufficient for
the discharging or emptying of the receptacle. A suitably arranged opening is
also provided for the introduction of the oil.
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:
A bearing with annular lubrication characterised by the bearing cups (c) which
contain the lubricating rings being movably mounted by means of a spherical

page_text: bearing (f) in a casing (a) which contains the oil chambers, the said casing sur-
rounding the bearing and thereby forming a free space, substantially as herein-
before described.
Dated this 27th day of October 1900.
W. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.