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Патент USA US2132890

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Oct. 11, 1938.
v. A. BARY
Filed'July 9, 1934
2. Sheets-Sheet 1
‘ Jn yen for :
Oct. 11, 1938.
Filed July 9, 1934
2 Sheets-Sheet 2
Jn ven for :
' Patented Oct. 11, 1938
Victor Alexander Bary, London, England, as
.signor to Walter Peyinghaus, trading as Eisen
und Stahlwerk Walter Peyinghaus, Egge, near
Volmarstein', Ruhr, Germany
Application July 9, 1934, Serial No. 734,293
‘ In Germany July "17.71933 ’
_ 1' Claim. ' (stats-as)
This invention relates to axle‘ bearings for rail
v v'of ‘rotation so that‘an agitation‘ of the store
of lubricant during
the passage‘of the feed blade
by a feeding'member rotating with the axis‘ is completely avoided. ‘The feed blade may be
This feeding member consists in the. kept very thin and provided. with sharpened
vehicles with'mechanical feed of the lubricant '
usual manner of a feed rod to which feed blades
are attached. According to the present inven-'
tion, the feeding member comprises a rod-shaped ‘
center piece with feed blades arranged thereon,
, the feed blades having the shape'of segments of
10 a ring and enlarged in the form of a T\ over
the Width of the rod-shaped center piece. ‘The V
edges. However, the feed rod must bew'compara
tively strong 'to take up the centrifugalforces
of the feedblade- so that should it pass through
the store of lubricant it produces a strong emul
sification, oxidation and premature aging of the
lubricant. The passage of the feed rod through
the store of lubricant was hitherto unavoidable
inner edge of the feed blades, which faces the
if the whole feed blade had to dip into the store
axis of rotation, extends over the feed rod in
of lubricant. According to the present invention,
the dipping of?the whole feed blade is effected
without it being necessary for the feed rod to
a length corresponding to at least one half
of the width of the feed rod, and. the inner
edges of the feed blade, which extend over the
feed rod, have with increasing distance from
the center of the feed blade a decreasing ‘dis
tance from the axisof rotation.~
V '
Feeding members designed according-to the
invention have the special advantage ‘that 'owé
ing to the peculiar shape or form'of the‘ feed
blade, the lubricant taken up by‘ the feed blade
during its passage through the store of lubri
dip into the store of lubricant.
, If the feed blades are constructed as ‘polygons '
and‘the ‘arrangement of the corner points of the
polygons,’ differs according to the diiferent feed
blades, ‘there results therefrom the advantageous 20
feature that the feed blades cannot assume at
certain speed of the axle journal critical states
ofequilibrium to‘, which the feed of the lubri
cant~is subjected. ‘, These critical states of equi
cant reaches the inner edge vof the feed blade librium are produced by the fact that the forces
when the feed blade. has reached the highest causing; thejseparation of the lubricant and
point of its path of rotation and is‘ located keeping it against the feed blade can maintain .
above the collecting member ‘for the'lubricant. an equilibrium at certain velocities of rotation
This collecting member is usually formed from. ' of the feed blade because centrifugal force is
a projection of the bearing brass around'which
the feed rod is bent. Thiscollecting member. is
therefore reached by the- vlubricant with cer
dependent on the velocity 'of rotation.
ity acting on the lubricant draws the lubricant
toward the lower corner points of'ithe feed
blade. The lubricant is thereby accumulated at
bounding’ edges.
to the different relative positions of the corner
pointshthev bounding, edges of the feed blades ‘
tainty because owing to the‘,:peculiarcoursefof - have a different distance from the center of ro
g the inner edge of the feed blade extendingxover tation and .a different length so‘ that the cen
trifugalpfor'rces'j areneverv the same ‘at these
35 the feed rod 2. component’ of‘ the force ofrgrav
_ points on the inner edge of the feed blade and
the force of gravity of this ,accumulationat
points is adapted to overcome theadhesion and
cohesion forces with certainty'and ease ‘although
the latter forces are known to be very, high in
connection with the lubricant. In the caseiof
low speeds, the lubricant must drip down with
certainty and thereby Vreachthe 0il.,.collecting
member in the uppermost‘ point of the path vof
rotation. V The delivered amounts of lubricant ,
The critical conditions of equi
librium cannot occur at the same time in con-v
nection with both ‘the feed blades.
Inv order. to give the ‘feed blades the correct
size,‘ it“ is advantageous vto provide a constant
axle-‘journal diameter. The surprising fact re
sults therefromthat when keeping this ratio con 45
stant the bearing surface‘ always receives the
lubricantwhich is required for an adequate
The drawings, show by way of example the
are comparatively large because the T-shaped
enlarged feed blade has a comparatively large
construction of an oil feed-rod formed according
surface whereby lubricant can be taken up to
to the invention,
an adequate extent.
The bend of the feed rod may be; as shown,
a less distance from the axis of rotation than
55 the inner edge of the feed blade facing the axis
ratiobetween‘the effective feed-blade face and
the axle-journal" surface independently of the
. Fig. '1 showing a side elevation of the oil feed
rod, while
Fig. 2 represents a front elevation of the same.
Fig. 3, shows ‘in vertical longitudinal section 55
through an axle-bearing the arrangement of the the resultant forces which lead to the centri
blade according to Figs. 1-2.
fuging of the lubricant arise in the case of the
The oil feed rod is according to the invention two feed blades in such a different way that one
the feature that the distance feed blade throws off the lubricant before the
of the inner edges ‘I’, 3', 9’. and II!’ of each of other feed blade throws it off.
Finally, Figs. 1 and 2 show that the feed blades
the two feed blades I, 2 from the axis of rotation
is smaller’ the greater the distance from the are constructed as narrow segments of a ring,
so that the paths along which the lubricant slips,
centre of the feed blade. In other words the dis—
tance of the inner edges of the feed blades from measured in the radial direction, are shorter than
the axis of rotation is gradually reduced toward" the paths, along which it is drawn, meas 10
the inner apices I8, I9 and 20, 2| so that these ured in the peripheral direction. This is worthy
apices'are located closer to the axis of rotation of ‘consideration in so far as in consequence of
than the remaining portion .of the edges of the , forces of inertia arising in the case of an insuffi
‘ blades.
Incidentally the outer: edges of the blades cient ratio between'the paths along which the
15 are situated on the same arc with respect to the lubricant is drawn and those aiong which 15
axis of rotation. Moreover the distance of any it slips the lubricant is discharged from the feed
radial line drawn from the inner ‘edge to the outer I blades before the latter have reached their posi
edge of each blade is only approximatelyone- v tion above the collecting member; the lubricant
half of the width of the rod support I 3. The feed consequently passes back unused into the lubri
20 blades are consequently cut back in the direction cant store, while lubricant is supplied insufficient 20
of rotation at 3, 4, Eand 8 drip-tips ‘I, 8, 9 and It ly to the bearing surface. Fig. 2 shows that the
being formedsand the surface of the feed blade realization 0f a satisfactory relationship is pos
beingperpendicular to thevrod-face, I I, I2 sup
porting‘ the feed blade. The rod-support I3 it
25 self, which may be ?rmly connected by way of
holes 24 with the axlejournal which is not illus-'
trated,7 possesses at I5 and I6 outwardly arched
portions which enable a catching member, which
is shown in Fig. 3, to be located within rangeof
the drippings and threads formed by the feed
sible without thev ful?lment of the other require
ments being disturbed.
The edges ‘I’, 1", 8', 8", 9', 9'', ID’, ID", 22 and 25
23 are formed as knife-edges in a manner well
known per se, in-order to prevent air from being
driven into the lubricant store.
They feature'that the moistened surface. of the
feed blades may have a constant ratio to the
member. As. is noticeable particularly from the
lower parts of Figs. 1 and 2, the whole of the feed
surface ofthe axle-journal, independently of the
blades I and 2 together with the drip-tips ‘I-IIl
scope of the invention. By means of this fea
ture the supply of the requisite suf?cient quan
tity of lubricant to the bearing surface is always 35
accomplished without troublesome testing of rod
shaped feed members of different sizes being
can consequently be dipped into the lubricant
store I ‘I without the parts II and I2 of the rod
support, that is the rod-support I3‘ as such, re
quiring to dip into the lubricant store.
theless fully developed drip-tips are formed,
which cause the lubricant to .drip-v off with cer
.40 tainty. The lubricant store is consequently trav
ersed only byv the feed blades, withoutit being
. possible for the lubricant store to be injuriouslyv
lashed up, emulsi?ed and oxidized.
As is also noticeable from. Figs. 1 and ‘2,, the
bounding edges ‘I’, 'I", 8’, 8"’, 9", 9" and Ill’, ill”
which a form
drip-tips, .. possess
lengths on the different feed ‘blades. The result
of this is that the mutual action betweengravity,
forces of adhesion, forces of cohesion and cen
trifugal'forces, in ‘so- far as they interact to bring
. about the dripping of the lubricant, take. place
differently on theltwo feed blades, so that always
' one feed biade effects dripping with certainty
diameter of the axle-journal, lies. within the
Theprinciple of the invention is also realized
when the faces of the rod-support carrying the 49
feed blades are not perpendicular to the face of
the feed blade but ‘are at an oblique angle to the
same. With this arrangement, however, there
is connected the disadvantage that when the
outermost diameter is given the faceo-f the feed 45
bladeis unnecessarily small; vit might, without
the support having to dip into the store of lubrie
cant,be increased by the amount inquestion, if
the supporting face of the rod were positioned
at right angles to the face of the feed blade.
I claim:
An axle bearing comprising an axle box hous~
ing, a bearing brass adapted to receive an axle
when in the case of the other feed blade certain journal, a lubricant store in said housing, feeding
conditions of equilibrium of the said forces have a means adapted to- lift lubricant from said lubri 55
already occurred, the dripping during this time cant store, saidfeeding means comprising a rod
being ‘discontinued, It is also-noticeable that the shaped center piece, feed blades on said center
feed blades are constructed as polygonsvwhich piece, said feed blades designed as segments of .a
differ from, one anether, as regards the positions ring and, extending T-shaped across the rod
of their apices, so that inparticular the position shaped center piece of said feeding means, acol 60
of the apices I8, I9 of the feed blade I giving rise lecting member for the ‘lubricant in the annular
to the ‘formation of threads ‘is different from the space swept over by the said feed blades during
position of the apices 20, ZI'in the case of the the rotation of the feeding means, said rod
other feed ‘ blade. Consequently the threads
65 formed by the feed blades cannot mutually dis
shaped center piece bent aroundsaid collecting
turb one another. Finally, the bounding edges
member, said bend being at a shorter vdistance
from the axis of rotation than the inner edge of
22,23, of the feed blades‘ I and-2', which edges
act centrifugally, possess different lengths, sothat
the feed blades facing the axis'of rotation.
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