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Патент USA US3035853

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May 22, 1952 '
R. K. H. RUNKNAGEL
3,035,843
JOURNAL SEAL AND RETAINER THEREFOR
Filed Sept. 22, 1958
2 Sheets-Sheet 1
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INVENTOR.
Roz/- /f. 5/. FUNK/W465;
_
May 22, 1962
R. K. H. RUNKNAGEL
3,035,843
JOURNAL SEAL AND RETAINER THEREFOR
Filed Sept. 22, 1958
2 Sheets-Sheet 2
l?
65
7/
INVENTOR.
R04;- Af A FUNKNAGfL
BY
'
United States Patent 0 ” lC€
1
2
be fully understood from the following detailed descrip
3,035,843
tion of a typical preferred form and application of my
JOURYAL SEAL AND RETAINER THEREFOR
Rolf K. H. Runknagel, Northridge, Calif.
(17000 Ventura Blvd., N0. 208, Enclno, Calif.)
Filed Sept. 22, 1958, Ser. No. 762,642
8 Claims. (Cl. 277-130)
3,035,843
Patented May 22, 1962
invention, throughout which description reference is made
to the accompanying drawings, in which:
Cl
FIG. 1 is a detailed longitudinal sectional view taken
through a typical journal box and illustrates a typical
embodiment of the seal and retainer that I provide. FIG,
This invention relates to a journal seal for a railroad
car and is concerned in particular with the securement
2 is a detailed sectional view taken as indicated by lines
2—2 on FIG. 1. FIG. 3 is an enlarged -detailed-sec—
of a replaceable seal in working position over the journal 10 tional view of a portion of the seal shown in FIG. 2
of a railroad car axle at the inner end of the journal box
and taken as indicated by lines 3—3 on FIG. 2. FIG. 4
and adjacent the wheel, it being a general object of this
is a fragmentary view similar to a portion of FIG. 1 and
invention to provide a reliable inexpensive means for
shows the elements of the retainer positioned so that
the sealing of existent journal boxes and to exclude
the sealing element can be removed and reinstalled.
foreign matter therefrom and which can be installed all 15 FIGS. 5 and 6 are enlarged perspective views of the
with a minimum of effort.
The design and construction of railroad car truck as
two elements of the retainer, respectively, and which parts
are carried in the slot at the inner end of the journal
box, and FIGS. 7, 8 and 9 are enlarged detailed sectional
views taken as indicated lby lines 7-7, 8-8 and 9-9
are built as units of constrution and are characterized 20 on FIG. 5, respectively.
Iby a pair of spaced wheels carried on a central axle,
The journal seal and retainer therefor of the present
there being trunnions or journals concentric with and
invention is intended for use in connection with railroad
projecting from the ends of the axle outboard of the
cars having the general construction above referred to,
wheels. The railroad trucks are usually supported by
it being understood, however, that there are other ma
two or more axle and wheel units and are characterized 25 chines involving journal constructions that may be pro
by side frames having a journal box at each wheel jour
vided with the structure of the present invention. In
nal. The journals extend into the journal boxes to en
accordance with the usual railroad truck construction,
gage with the brasses or journal bearings and to engage
there is a journal ‘box Z carrier at each end of the axle
with oil ‘bearing waste or with suitable lubricators. The
and wheel unit. The exact details of construction may
outer ends of the journal boxes are closed by covers 30 vary widely as circumstances require, the particular con
while the inner ends of the boxes are provided with dust
struction shown being for purpose of illustration only.
guards, heretofore in the form of a wooden panel that
The axle and wheel unit of a typical railroad truck
passes the journal, carried in slots that are characteristic
involves a central elongate axle (not shown), a pair of
of the journal ‘box construction.
spaced wheels 11, and a pair of trunnions or journals 12
The usual journal box loosely receives a dust-guard 35 that project from the ends of the axle outboard of the
and provides no positive leakproof engagement of the
wheels. The axle is a straight shaft-like part, the wheels
dust-guard with the inner end of the journal box. That
11 being carried on the hubs 13 or end portions there
is, ordinarily, there is no positive way to prevent dust,
of. A common journal construction is shown in FIG. 1
or the like, from by-passing the dust-guard. For ex
of the drawings which may involve a turned dust seal
ample, a sealing member or ‘dust-guard is merely loosely 40 seat 14, the journal 15 per sc, and a journal collar 16.
engaged in a slot.
The seat 14, journal 15, and collar 16, are turned con
The installation of a dust-guard seal without removal
centric with the axle, the seat 14 extending outwardly
of the side frame can be accomplished by my journal
from the hub 13 and joined with the hub through a suit
seal construction as disclosed in my Patent No. 2,857,180,
able ?llet. The journal 15 is turned down to be of con
entitled Journal Seal, issued Oct. 21, 1958 but said patent 45 siderably smaller diameter than the seat 14 and extends
has to do with the elimination of the “dust-guard slot”
outwardly from the seat 14 and joins with the seat through
which is not always desirable and which requires a sup
a ?llet 17. The ?llet 17 is formed on a radius that is
plemental retainer to clamp the dust-guard, or seal, in
tangent to the surface of the journal 15 and substantially
working position. That is, the teaching of said patent
normal to the surface of the seat 14.
requires modi?cation of or rebuilding of the journal box 50
The journal collar 16 is carried at the terminal end
housing, at the inner end portion thereof.
of the journal 12 and projects radially to substantially
An object of this invention is to provide a journal
the same diameter as the seat 14. The seat 14 is of
seal for railroad cars that is replaceable and which is
su?icient axial extent to accommodate and engage with
adapted to be received in the usual dust-guard slot. I
a sealing element while the journal 15 is substantially
have provided a single sealing member or dust-guard 55 elongate and characterized by a smooth surface adapted
at the inner end of the journal ‘box and adapted to be
to have bearing engagement with the journal box Z. The
installed and/ or replaced. The journal seal that I pro~
collar 16 is of an axial extent to afford necessary strength
vide is ?exible so that it can be manipulated into work
and rigidity. Under operating conditions, the journal
ing position, so that it will conform to the size of the
15 takes the radial thrust or supporting load while the
parts to be sealed, and so that it aligns itself to both 60
?llet
17 and ?ange 16 take the axial thrust or side loads.
radial and axial variations or movements of the journal
The journal box Z is an elongate element that extends
and journal box parts under operating conditions.
axially of the axle and rotatably receives the journal 12
It is also an object of this invention to provide a
and involves generally a housing 21, a brass or journal
retainer for use in the dust-guard slot of a journal ‘box of
the character referred to and that secures the seal in 65 bearing 22, a bearing wedge 23, and a lubricator 24. ‘The
housing 21 has a top 25 that engages with the wedge 23
proper working positions and properly aligned with the
and has sides 26 that depend from the top establishing
journal. The retainer that I provide is installed perma
a chamber for receiving the journal 12. The bottom of
nently in place in the dust-guard slot of the journal box
semblies is highly developed and in general is standardized
throughout the railroad industry. The axle and wheels
construction and is carried over the journal and is op
erabe to releasably engage and clamp the seal or dust
guard to hold it in working position.
The various objects and features of my invention will
the housing 21 is closed by a sump or reservoir 27 for
70 containing oil or lubricant. Thus, an elongate chamber,
substantially rectangular in cross-section is formed and
is of a size in excess of the diameter of the journal 12
3,035,843
4
0
35. A central opening 46 is provided in the ?ange 40
but only enough larger to accommodate the bearing 22,
wedge 23, and lubricator 24.
The bearing 22 is removably carried in the housing
preferably of the same size or diameter as the openings
36 and 36’ in the walls 35 and 35'. In accordance with
the invention I provide one or more continuous ribs
21 at the upper portion of the chamber therein and ad
jacent the top 25. The bearing 22 is primarily an elon
47 at the peripheral portion of the ?ange 49, the ribs 47
being in a group extending parallel with each other and
projecting forwardly from the face 45 to have sealing en
gagement with the wall 35, the ribs 47 being continuous
along the sides, the top and bottom of the ?ange 40 and
gate element arcuate in cross-section and having a down
wardly faced bearing 28 turned concentric with the axis
of the journal 15. The bearing face is preferably lined or
babbitted. The bearing 22 has a ?at upper face 29 and
a shoulder 30 at the inner end thereof. The face 29 and 10 surrounding the opening 46 to have reliable sealing en
gagement when the seal S is clamped in position by the
shoulder 30>cooperate with the wedge 23 that retains the
retainer R. The sealing hub 42 that carries the sealing
bearing 22 in working position. The inner end of the
rings B and B’ and the means C are fully described and
face 28 is rounded to ?t the ?llet 17 and the bearing is
claimed in my Patent No. 2,857,180.
somewhat shorter in length than the distance between the
The retainer R is an assembly of elements involving,
?llet and ?ange 16. Thus, there is limited axial freedom 15
of bearing 22 between ?llet 17 and collar 16 at the ends
generally, a clamp P, an operator 0, an actuating means
of the journal 15.
The journal bearing wedge 23 is provided to retain the
bearing 22 in working position and is an elongate part
that is inserted into the housing 21 between the top 25 20
M for actuating the clamp P into engagement with the
seal S, and lock means L for securing the operator 0 in
and the bearing 22. The wedge 23 is engaged over a
shoulder 36' at the outer end of the housing and en
gages the shoulder 30 of the bearing to hold the bear
ing in working position.
The lubricator 24 may vary widely and may be sim
ple waste material‘ carried in the reservoir 27 and acts
to absorb lubricant and apply it to the journal 15. The
particular lubricator 24 illustrated, has a holderv 31 for
alternate engaged and disengaged positions. The clamp
P is a rigid element that surrounds and‘ encompasses the
journal 12 when the clamp P is in working position in
the slot 37. As best illustrated in FIG. 5 of the drawings,
the clamp P involves a plate 59, a protecting fender or
ring 51 and a supporting ?ange 52. The plate 50 is
25 preferably of the same transverse con?guration as the
wall 35 so as to overlie the wall 35 to be substantially
coextensive therewith. A central opening 56 is provided
in the plate 58 preferably of the same size and con?gura
tion as the openings 36 and 36’. The outer wall 53 of
an absorbent pad 32 that is secured in operating posi
tion. The pad 32 contacts the surface of the journal 15 30 the plate 56 is ?at to engage with the inner face 44 of
the ?ange 40 of the seal S. The ?ange 40 is free to move
and applies the lubricant thereto.
laterally of the plate 59 so that radial shifting of the seal
The construction thus far described is a typical journal
S can occur independently of the positioning of the clamp
and journal box construction, the journal 12 being re
P. In practice, the clamp P engages the ?ange 46 so
ceived in the chamber formed by the housing 21 to ro
tatably engage and be supported by the bearing 22. The 35 that the ribs 47 are compressed when the wall 53 is
brought into clamping position relative to the wall 35. It
bearing 22 is held in position by the key-like wedge 23
housing is of adaquate size for removal and replacement
of the elements 22, 23 and 24.
The housing 21 is characterized‘ by an inner end wall
will be apparent that a tight seal is provided when the
parts are brought into proper working position.
The protecting ring 51 joins with the plate 50 at the
opening 56 and projects inwardly from the plate to over
lie and protect the extension 41 of the seal S. Further,
the plate 50 is preferably a relatively. thin and light weight
part, the ring 51 acting to reinforce the plate so that it
35‘ and slot 37 in a plane normal to the axis of the struc
remains ?at and does not de?ect or bend. The supporting
and the bearing is oiled by the lubricator 24. The outer
end of the housing 21 is closed by a closure that shuts
an opening provided for access to the parts carried with
inrthe housing. The said opening at the outer end of the
?ange 52 joins with the plate 55) at the upper end there
ture, there being an opening 36 in the wall 35 and adapted
to pass the ?ange 16 of the journal with substantial 45 of and projects outwardly from the plate to overlie the
upper end of the wall 35. The ?ange 52 has supporting
clearance. Further, there is a wall 35’ spaced inwardly
engagement with the said upper end of the wall 35 so that
from the wall 35 and parallel therewith and having an
the clamp P hangs in proper working position upon being
opening 36' aligned‘ with the opening 36 and to pass the
journal. The wall 35' isjoined to the wall 35 at the sides
dropped into the slot 137. As shown, the ?ange 52 is
and bottom of the housing 21 by continuations 26' and 50 a straight ?ange that extends transversely of the hous
ing 21.
27' of the sides 26 and bottom 27, respectively, and
forms the slot 37 that opens upwardly to receive the
The operator 0 is a frame-like element that is co—
operatively related to the clamp P and is adapted to be
usual dust-guard elements.
The journal seal S herein disclosed is adapted to be
manipulated so that the clamp P is shifted between alter
installed in the slot 37 of the truck assembly‘ of the rail 55 nate engaged and disengaged positions. That is, the
road car. The seal S involves a body A, sealing rings
clamp P is either engaged with the ?ange 40‘ of the seal
B and/or B’, and a means C yieldingly urging the rings
S or is retracted therefrom. The operator 0, as best
B into pressure engagement with the part to be sealed
illustrated in FIG. 6 of the drawings, involves a frame
against. The seal S engages over the journal 12 at the
69 preferably of the same transverse con?guration as the
inner end of the journal housing and is secured against
clamp P and wall 35 and so as to overlie the inner side
the wall 35 by a retainer R. The retainer R that I pro
of the plate 50. In other words, the'frame 60 is shaped
vide clamps and holds the seal S in the selected working
to conform with the transverse shape of the slot 37 and
position so that the sealing rings B surround and have
lies adjacent to the peripheral portion of the plate 50, said
sliding engagement with the seat 14 on the journal 12.
peripheral
portion of the plate overlying the ribbed por
The body A, in accordance with the invention, is made 65 tion of the ?ange 40, that is the ribs 47.
of pliant ?exible material, such for example, as rubber
The frame 60 is a rigid element that surrounds and
or the like, and involves a mounting ?ange 4%}, an exten
encompasses the journal 12 when the operator 0 is in
sion 41, and a sealing hub 42. The ?ange 40 is held in
working position in the slot 37. As best illustrated in
clamped engagement with the wall 35 by the retainer R,
FIG.
6 of the drawings, the frame 60 involves an elon—
70
hereinafter described, while the hub 42 is axially spaced
gate part a curved bottom section 61 and straight parallel
from the ?ange 40 to surround the seat 14 and is car
side sections 62 continuing upwardly from the bottom
ried by the extension 41 that projects from the ?ange
section and a straight top section 63 that joins the upper
40. The ?ange 40 is. a ?at element having inner and
ends of the side sections. The elongate part that forms
outer faces 44 and 45, respectively, the face 45 being
adapted to engage flat against the inner face of the wall 75 the frame 60 can be rectangular or square in cross-section,
3,035,843
5
and in practice can be varied in formation as desired. It
the retainer R passing the journal 12. With the seal
is preferred that the frame 60 of the operator 0 have
S and retainer R in this position, the retainer R is op
a ?at outer face 65 to oppose the inner side or face of the
erated by moving the operator 0 downwardly in order
to spread the clamp P into engagement with the ?ange
clamp P.
In accordance with the invention, I provide the actuat
ing means M for actuating the clamp P into position to
engage and clamp the ?ange 40 in sealing engagement
40 of the seal S. The elements of the retainer R are so
proportioned as to suitably compress the ?ange 40 and
ribs 47 when the operator 0 is in a fully down position
with the fastener 75 engaged in the lowermost opening
with the inner face of the wall 35. The means M relies
76, thereby compressing the ?ange 40 of the seal S tightly
upon relative movement between the clamp P and op
erator O and in its preferred form is a cam means in 10 against the wall 35.
volving one or more inclined cams 70 on one element and
adapted to operate against portions of the other element
in order to shift the two elements P and 0 relative to
Having described only a typical preferred form and ap
plication of my invention, I do not wish to be limited or
restricted to the speci?c details herein set forth, but wish
each other to spread them apart. I preferably employ
to reserve to myself any variations or modi?cations that
a plurality of inclined cams 70 that project from the inner 15 may appear to those skilled in the art and fall within the
face of the plate 50 each of which is adapted to have
scope of the following claim.
sliding engagement with a cooperating face 71, or the
Having described my invention, I claim:
like, formed in the opposing outer face 65 of the operator
1. In combination in a journal box of the character
0. In the particular form of the invention illustrated,
described and having a slot at one end thereof and a jour
there is a pair of laterally spaced cams 70 at the lower 20 nal intersecting the slot to enter the journal box, a seal
portion of the clamp plate 50 and engageable with cor
having a body of pliant material surrounding the journal
responding faces 71 in the frame 60, there is a pair of
and with a freely de?ectable laterally disposed ?ange to
project into the slot surrounding the journal, said seal
being replaceable without removal of the journal box from
cams 70 one at each side of the clamp plate 50 and en
gageable with corresponding faces 71 in the side section 62
of the ?ange 60, and there is a pair of laterally spaced 25 said journal, and a retainer including a clamp plate sur
cams 70 at the top of the clamp plate 50 and engageable
rounding the journal and coextensive with the ?ange and
with the edge (in this instance) of the top section 63 of
means to shift and position the clamp plate to engage
the frame 60. The cams are downwardly and inwardly
with said ?ange.
inclined and have ?at engagement with the faces 71. In
2. In combination in a journal box of the character de
the case of the top cams 70 there is a line of engagement. 30 scribed and having a slot at one end thereof and a journal
The lock means L is provided to secure the operator
intersecting the slot to enter the journal box, a seal having
0 in the two alternate positions, one position such as
a body of pliant material surrounding the journal and
to allow for entry of the seal S into working position (see
with a freely de?ectable laterally disposed ?ange to pro
FIG. 4) and the other position such as to clamp the seal
ject into the slot surrounding the journal, said seal being
S in said working position (see FIG. 1). In the ?rst men 35 replaceable without removal of the journal box from said
tioned position shown in FIG. 4 the operator 0 is sup
journal, and a retainer including, a clamp plate surround
ported in an elevated position with the faces 71 and top
ing the journal and coextensive with the ?ange, a later
section 63 retracted from the cams 70. In the second
ally shiftable manual operator, and means acting between
mentioned position shown in FIG. 1 the operator 0 is
the operator and the clamp plate to shift said plate and
manipulated, by suitable force, say for example with
position it in engagement with said ?ange upon shifting
downward manual pressure, with the faces 71 and top
of the operator.
section 63 advanced onto the cams 70. It will be apparent
that downward movement of the operator 0 relative to
the clamp P that is supported by the ?ange 53 causes
3. In combination in a journal box of the character
described and having a slot at one end thereof and a
journal intersecting the slot to enter the journal box, a
outward movement of the clamp P to press against the 45 seal having a body of pliant material surrounding the
seal S. As shown, the lock means L involves a fastener
journal and with a freely de?ectable laterally disposed
75 that is engaged through suitable openings in the two
?ange to project into the slot surrounding the journal,
elements P and O to position them relative to each other.
said seal being replaceable without removal of the jour
In practice, there is a pair of vertically spaced openings
nal box from said journal, and a retainer including, a
76 in the operator 0 and a single opening 77 in the clamp 50 clamp plate surrounding the journal and coextensive with
P, the fastener 75 being in the form of a cotter adapted
the ?ange, a laterally shiftable manual operator, and cam
to be selectively engaged through said openings.
means acting between the operator and the clamp plate to
From the foregoing it will be apparent that I have pro
shift said plate and position it in engagement with said
vided an extremely simple construction for retaining a
?ange upon manipulation of the operator.
seal in working position and particularly adapted to be 55 4. In combination in a journal box of the character
used with the ordinary railroad car journal box having a
described and having a slot at one'end thereof and a jour
“dust-guard slot” 37. In order to install or replace the
nal intersecting the slot to enter the journal box, a seal
seal the journal box is partially dismantled to, removing
having a body of pliant material surrounding the journal
the lubricator and journal hearing or brass from the jour
and with a freely de?ectable laterally disposed ?ange to
nal box, and the operator 0 is secured in the said elevated 60 project into the slot surrounding the journal, said seal
position. The fastener 75 is simply inserted into the
being replaceable without removal of the journal box
lowermost opening 76. With the parts removed from the
from said journal, and a retainer including, a clamp ele
chamber within the journal box housing, and with the
ment surrounding the journal and coextensive with the
retainer R retracted from the ?ange 40 of the seal S, i
?ange, a laterally shiftable operator element, and means
the worn seal S can be removed and a new seal S in 65 comprising a cam on one element and engaging the other
stalled. In order to install a new seal S with the side
element to shift the said clamp elment and position it in
frame removed, the ?exible and pliant body A carrying
engagement with said ?ange.
the sealing rings B and B’ and other parts thereof can
5. A seal for use in a journal box of the character de
also be dropped into the slot 37 and the journal 12 moved
scribed and having a slot at one end' thereof and a journal
axially through the openings 36 and 36' at the inner end 70 intersecting the slot to enter the journal box and including,
of the journal box. Thus, it will be readily observed that
a body of pliant material to surround the journal and with
it is a simple matter to pass the seal S over the journal
a freely de?ectable laterally disposed ?ange to project
12 from the exterior of the housing 21 to the interior
into the slot surrounding the journal, said pliant body
thereof and into working position, with or without the
being slidably engageable over the journal without re
side frame removed, the openings in the seal S and also 75 moval of the journal box therefrom.
3,035,843
8
8. A seal for use in a journal box of the character de
scribed and having a slot at one end thereof and with an
6. A seal for use in a journal box' of the character de
scribed and having a slot at one end thereof and with
an- axially faced wall and a journal intersecting the slot to
enter the journal box and including, a body of pliant ma
terial to surround the journal and with a freely de?ectable
axially faced Wall and a journal with a peripheral face
and intersecting the slot to enter the journal box and in
cluding, a body of pliant material to surround the journal
and with a freely de?ectable laterally disposed ?ange to
laterally disposed ?ange to project into the slot surround
ing the journal, and ribs projecting from the ?ange to
engage the Wall of the slot; said pliant body being slidably
engageable over the journal Without removal of the jour
nal vboX therefrom.
7. A seal for use in a journal box of the character de
projectinto the slot surrounding the journal, ribs project
10
ing from the ?ange to engage the Wall of the slot, and a
hub with sealing means to engage the said periphery of
the journal, said pliant body being slidably engageable
over the journal Without removal of the journal box
therefrom.
scribed and having a slot at one end thereof and a journal
with a peripheral face and intersecting the slot to enter
the journal box and including, a body of pliant material
to surround the journal and with a freely de?ectable lat 15
References Cited in the ?le of this patent
erally disposed ?ange to project into the slot surround
UNITED STATES PATENTS
ing the journal, and a hub With sealing means to engage
the said periphery of the journal, said pliant body being
slidablby engageable over the journal Without removal
of the journal box therefrom.
20
2,054,017
2,108,874
Theiss _______________ __ Feb. 22, 1938
2,487,669
Pattullo ______________ __ NOV. 8; 1949
Armstrong et al _________ __ Sept. 8, 1936
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