Year: 1897

page_text: HEINRICH DRINKMANN, Ox 12, Wortlistrasse, Alunich, in
the Empire of Germany, Merchant.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, and 6, Bank Street, Manchester, both
in the County of Lancaster, 118, New Street, Birmingham, in the County of
Warwick, and 322, High Holborn, in the County of Middlesex, Civil Engineer,
do hereby declare the nature of this invention to be as follows:-
This invention has for its object a thrust bearing for propellor shafts which
reduces to a minimum the friction produced on the bearings by the thrust of the
propellor shaft.
Between two flanges connecting the two parts of the shaft a ring is fastened.
On said flanges two rings are concentrically forced, and rollers are mounted
between each pair of rings. Cups which have an outwardly spherical form are
pushed over the said rings. These cups are bedded in suitably hollowed out
bearing supports, of which supports one is fixed and the other is loosely mounted
on the bed plate. The supports are connected by means of screw bolts.
rollers rotate on the central ring and on the walls of the cup at one or the other
side according to the direction of thrust. In order to reduce the wear of these
friction surfaces to a minimum, hardened steel rings may be removably arranged
if necessary.
The
In order to allow of this thrust bearing being conveniently taken apart or to
allow of any necessary repairs being effected, the fixed support may be made
adjustable in the longitudinal direction of the shaft by being provided with slots
and set screws to engage therein.
Filling pieces are placed between the rings and the rollers.
Instead of bolts the cups may be movably mounted on the supports by means
of trunnions bearing in the two supports which are situated loosely on the bed
plate and may move on vertical bolts. These supports are prevented, by means
of rollers adjustably mounted on the bed plate, from shifting in a longitudinal
direction to the shaft. The points of rotation formed by the said trunnions and
vertical bolts have for their object to compensate for the bending of the rotating
shaft, or in other words to enable the cups to always follow or adapt themselves
to the movements of the shaft.
Balls may be employed on one of the two sides instead of rollers if desired.
Dated this 8th day of March 1907

page_text: A communication by HEINRICH BRINKMANN, of 12, Wörthstrasse, Munich, in
the Empire of Germany, Merchant.
I, WILLIAM PHILLIPS THOMPSON, F.C.S., M.I.M.E., of the Agency for Foreign
Patent Solicitors, 6, Lord Street, Liverpool, & 6, Bank Street, Manchester, both
in the County of Lancaster, 118, New Street, Birmingham, in the County of
Warwick, & 322, High Holborn in the County of Middlesex, Civil Engineer,
do hereby declare the nature of this invention and in what manner the same is 5
to be performed, to be particularly described and ascertained in and by the
following statement:-
1
This invention has for its object a thrust bearing for propellor shafts which
reduces to a minimum the friction produced on the bearings by the thrust of the
propellor shaft, and in which the supports are so mounted that they always are 1
they stol in the bearing on the thrust of the shaft.
Inis beating is hown in the accompanying drawings, in which,
Figure 1 is a sectional elevation; and
Figure 2, a plan view;
Figure 3, a detail view of the arrangement of rollers;
Figure 4, a side view of the coupling of the shaft;
Figures 5 and 6 are sectional elevation and plan view respectively of the
supports;
Figure 7 is a detail;
Figure 8, a sectional view of the ball bearings;
Figures 9 and 10 are plan and elevation of a modified form of construction of
the thrust bearing;
Figures 11 and 12 are sectional views of another modification.
Between two flanges connecting the two parts a of the shaft, a ring b is fastened.
On said flanges two rings c c are concentrically forced, and rollers & are mounted
between each pair of rings. Cups e which have an outwardly spherical form
are pushed over the said rings c. These cups are bedded in suitably hollowed
out bearing supports FF of which supports one l' is fixed and the other F¹ is
loosely mounted on the bed plate. The supports F F are connected by means
of screw bolts g. The rollers & rotate on the central ring b and on the walls of
the cups e at one or the other side according to the direction of thrust. In order
to reduce the wear of these friction surfaces to a minimum, hardened steel rings h
may be removably arranged if necessary, as shown in Figure 5.
In order to allow of this thrust bearing being conveniently taken apart or to
allow of any necessary repairs being effected, the fixed support I may be made
adjustable in the longitudinal direction of the shaft by being provided with slots
and set screws o to engage therein, which latter are slackened to allow of the
support being moved.
Filling pieces are placed between the rings cc and the rollers d, see
Figures 3 and 7.
Instead of bolts the cups e may be movably mounted on the supports F F1 by
means of trunnions ; bearing in the two supports F F", Figures 5 and 6, which
are situated loosely on the bed plate i and may move on vertical bolts o. These
supports are prevented, by means of rollers k adjustably mounted on the bed
plate, from shifting in a longitudinal direction to the shaft. The points of
rotation formed by the said trunnions j and vertical bolts o have for their object
2

page_text: to enable the cups to always follow or adapt themselves to the movements of the
shaft a.
Balls may be employed on one of the two sides instead of rollers d, if desired,
as shown in Figures 4 and 8.
Figures 9 and 10 show a form of construction of the thrust bearing in which
the same object is attained in another manner. Here a short piece of shaft a¹
is inserted between the other parts a of the shaft and is connected with the former
by means of flanges aº. The thrust piece band this short piece a¹ of the shaft
are formed in one piece. On the latter the previous arrangement of bearings is
arranged, namely, the two cups e and the rings holding rollers or balls, which
rings are mounted in the usual manner in such forms of construction. The cups
are mounted in standards by means of pins or trunnions ; which are mounted
on the bed plate in such a way as to be adjustable longitudinally.
The supports thus remain similar to those shown in Figures 1 and 5, only that
the main bearing support shown in Figure 1 receives a removable cover fo.
If it be desired to undertake repairs or changes in the direction of the bearing,
this cover of the support or the two covers fo of the support are removed and the
latter is shifted somewhat laterally, after which, after releasing the couplings
ata, the piece a¹ of the shaft together with the thrust bearing arrangement may
be lifted out and removed.
Figures 11 and 12 show again a further modification of the bearings. Here
the supports or standards Flare cast on the bed plate i, but the same action is
attained as in the first form of construction by arranging eyelets f in the fixed
standards or supports F which eyelets are pivoted by means of pins o, and by
movably arranging in these eyelets f the bearing cups e by means of the
trunnions j. The eyelets f which are adjustably mounted by means of slots on
the pins o are here prevented from adjusting themselves or shifting longitudinally
along the shaft, in a similar manner to that employed in the first form of
construction, namely by means of adjustable rollers k
Owing to the standards or supports, or rather the standard eyelets of the last
described bearing always adjusting themselves automatically to the pressure
surfaces on the thrusting of the shaft, any unequal pressure on the balls or
runners is prevented from taking place, and thereby an unequal wear of the latter
or of the race for the same is prevented.
Having now particularly described and ascertained the nature of the said
invention 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:-
A thrust bearing for propellor shafts, in which the supports and eyelets of the
supports are mounted movably in such a way that they always automatically
adjust themselves or fit on to the pressure surfaces on the thrusting of the shaft,
substantially as hereinbefore described.
Did this 2nd dox of Sontember 1897