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Патент USA US2124109

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'July 19, 1938.
H. H. GRECE
2,124,109
LUBRICATED DUST GUARD
Filed Jan. 18, 1937
2 Sheets-Sheet 1
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INVENTOR.
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July 19, 1938. '
H. H. GRECE'
2,124,109
LUBRICATED DUST GUARD
Filed Jan. 18,. 1937
2 Sheets-Sheet 2
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Patented July 19, 1938
2,124,i09 ’
UNETED STATES
PATENT OFFECE '
2,124,109
LUBRICATED‘ DUST GUARD
Harry H. Grece, Detroit, Mich.
Application January 18, 1937, Serial No. 121,136
4 Claims.
(Cl. 286—6)
This invention relates to dust guards and in
particular to lubricated dust guards adapted to
be positioned in the dust guard pocket of a rail
road car journal box and seal the opening be
5 tween the hub seat of the car axle and the journal
box.
The main object of this invention is to provide
an improved lubricated dust guard for sealing
the opening between a railroad car journal box
10 and the ear axle journaled therein which will
have an extremely long life under the most severe
service conditions.
Another‘ object of this invention is to provide
an improved lubricated dust guard for sealing the
15 opening between a railroad car journal box and
the car axle adapted to seal the joint between the
dust guard pocket of. the journal box and the dust
guard and yet permit slidable movement of the
dust guard within the dust guard pocket.
Another object of this invention is to provide,
20
in combination with a journal box having a dust
guard pocket, liner means for said dust guard
pocket, and a lubricated wear resisting dust guard
slidably positioned in said dust guard pocket in
sealed contact with said liner means for seal
ing the opening between the journal box and the
car axle journaled therein.
' Still another object of this invention is to pro
vide, in combination with a journal box having
30 a dust guard pocket, a dust guard slidably posi~
tioned in said dust guard pocket adapted to seal
the opening between the journal box and the car
axle and means resiliently anchored to said dust
guard for sealing the opening through which the
dust guard is inserted into said dust guard
35
pocket.
Other objects of this invention will become ap
parent by reference to the following detailed de
scription taken in connection with the accom
40 panying drawings, in which:
Fig. l is a fragmentary sectional view of a rail
road car journal box showing a dust guard em
bodying ‘the invention positioned in the dust
guard pocket thereof. and around the hub seat
45 of the car axle.
Fig. 2 is a sectional view taken on the line 2-2
of Fig. 1.
Fig. 3 is a fragmentary sectional view similar
to Fig. 1 showing another embodiment of the in
vention also positioned around a car axle and in
the dust guard pocket of a journal box.
Fig. 4 is a sectional View taken on the line 4-4
55
of Fig. 3.
Fig. 5 is an enlarged detailed sectional view
taken on the line 5--5‘~of Fig. 2 showing the con
struetion of the embodiment of the dust guard in
Figs. 1 and 2.
'
Fig. 6 is an enlarged sectional View taken on the
line 6——6 of Fig. 2.
Fig. 7 is a detailed view showing compressible 6
sealing means between the upper and lower sec
tions of the dust guard.
'
Fig. 8 is an enlarged sectional View taken on
the line 8—8 of. Fig. 4: showing the construction
of the embodiment of the dust guard disclosed
in Figs. 3 and 4.
'
Fig. 9 is an enlarged sectional View similar to
Fig. 6 showing still another embodiment of the
invention.
Referring now to the drawings wherein like nu
merals refer to like and corresponding parts
throughout the several views, the embodiment
of the invention shown in Figs. 1, 2, 5, 6 ‘and '7
comprises, in general, a dust guard l0 slidably
positioned in the dust guard pocket II' of the 20
journal box I2 into which the car axle I3 having
a hub seat I4 is journaled by means of the bearing
l5 secured in the top of the journal box I2 by a
suitable wedge Hi.
The insides of the rear wall I ‘I and the parti 25
tion wall I8 of the journal box I2 forming the
guard pocket I I are preferably lined with suitable
liner plates l9 and 20 respectively, each having a
central aperture therethrough, and each prefer
ably having a suitably formed annular lip 2I
disposed around the said central aperture there
through slightly smaller in diameter than the
apertures in the walls H and I 8 respectively of the
journal box I2 through which the axle I3 is nor
mally positioned. The liner plates I9 and 20
are preferably secured'to the inside of the walls
i1 and E8 of the journal box I2 by such means
as soldering or cementing, the joint between the
annular lips 2| thereof and the said walls IT and
E8 of the journal box I2 being preferably sealed
by such means as the solder 22 or the like.
The
liner plates I9 and 20 compensate for irregulari
ties in the cast surface of the walls I1 and I8
of the dust guard pocket II and provide a suit
able surface against which the dust guard Ill may 45
slide in sealed relationship thereagainst.
The dust guard II] comprises, in general, upper
and lower portions 23 and 24 respectively slidably
joined together by the shafts 25 and sprung to
the hub seat Id of the car axle l3 by the springs 50
26, each of the upper and lower portions 23 and
24 having an arcuate wear resisting contact shoe
21 and 28 respectively preferably of babbit or
other wear resisting material harmless to the hub
seat I4 of the car axle l3 and an oil reservoir 55'
2
2,124,109
29 and 38 respectively secured in sealed relation
ship to said contact shoes 21 and 28, the said
contact shoes 21 and 28 each having a felt strip 3|
therein adapted to supply oil from the said reser
voirs to the surface of the hub seat H of the car
axle |3 under the said contact shoes by such
means as the wicking 32 positioned in said con
tact shoes and extending into said reservoirs.
Felt facings 33 and 34 on the front and rear sides
10 respectively of the said dust guard ID are of such
thickness that, together with the thickness of the
reservoirs 29 and 30, will permit the said dust
guard to slidably yet snugly ?t between the liner
plates I9 and 20 of the dust guard pocket ||
15 thereby sealing the joints between the said dust
guard l0 and the liner plates l9 and 20.
Referring particularly to Figs. 5 and 6, it will
be noted that the upper and lower contact shoes
21 and 28 are shouldered to permit the reservoirs
20 29 and 38 respectively to be brazed thereto with
' the exposed surfaces thereof flush in respect to
each other.
The upper contact shoe 2‘! is vertically bored at
the sides thereof as best indicated in Figs. 2 and 5
25 to frictionally receive the upper end of the shafts
> 25 upon which the lower contact shoe 28 is slid
ably mounted through suitable bores provided
therein.
The said shafts 25 are preferably se—'
cured in the upper contact shoe 27 by means of
30 suitable pins 31.
Compression springs 26 posi
tioned around the shafts 25, each having a head
ed end 35 for retaining a said spring 26 therein,
react against the bottom of the lower contact
shoe 28 for constantly urging the said contact
35 shoes 21 and 28 in sealed relationship around the
hub seat M of the car axle | 3. A felt washer 36
and a metal washer 360 may be provided around
each shaft 25 between the spring 26 and the lower
Contact shoe 28, the said felt washers 36 being
preferably positioned in suitable counterbores in
. the said contact shoe 28 to provide an oil seal
between each shaft 25 and the lower contact shoe
28 'to prevent oil from leaking from the lower
reservoir 38 around the said shafts 25.
45
Compressible pads 38 of felt or other suitable
material are positioned around the shafts 25 as
best shown‘in Figs. 1, 5 and 7 between the upper
and lower portions 23 and 24 respectively of the
dust guard ID to seal the opening therebetween
50 when the's'a'id dust guard H) is positioned around
. the hub ‘seat
M of a car axle |3.
The said pads
38 are preferably slit at 380 between the edge
thereof and the aperture provided therethrough
to accommodate the shaft 25, see Fig. '7, to admit
of ease in assembling them on the said shaft 25
or removing the same therefrom.
Resilient facings 33 and 34 of felt or other suit
able material are secured on the front and rear
sidesrespectively of the said dust guard ||| as
60 best shown in Figs. 2 and 5 by shellacking or
otherwise ‘cementing the same thereto. The to
tal'thickness of the dust guard I0 being such as
to‘ permit the same to be positioned in the dust
- guard pocket II in slidable sealed relationship
65 against the liner plates l9 and 20 therein.
The upper and lower contact shoes 2‘! and 28
are each slotted along the surface thereof in
contact with the hub seat |4-of the car axle 13 as
best shown in Figs. 1, 2 and 6 for receiving the
felt strips 3| and the wicking 32 by means of
' which the surface of the contact shoes in contact
with the hub seat M of the car axle |3 are thor
oughly lubricated.
It will be noted that the
wicking 32 extends through suitably disposed
75 bores provided in the contact shoes 27 and 28
at the base of the slots therein into the oil reser
voirs 29 and 30 respectively whereby to supply
lubricant to the felt strips 3| therefrom. A ba?le
39 is preferably provided in the reservoir 29
adjacent to the shafts 25 and the springs 26
therein to prevent the wicking 32 from fouling
the same.
In the embodiment of the invention shown in
Figs. 1, 2, 5, 6 and 7, the opening at the top of
the dust guard pocket H is preferably sealed with 10
a formed metal cap 40 resiliently secured to the
top of the dust guard ID by the springs 4| which
engage suitably disposed spring anchorages 42
and 43 on the inside of the said metal cap 40
and on the top of the reservoir 29 of the upper 15
portion 23 of the dust guard ID respectively.
A
washer 44 of felt or other suitable material is
disposed in the formed metal cap 40 in such a
position as to effectively seal the joint between
the said metal cap 40 and the journal box |2 20
around the top opening of the said dust guard
pocket I | . The metal cap 48 is preferably formed
with a depending lip 40!] therearound to assure
proper positioning at all times in respect to- the
top walls of the journal box |2 circumscribing the 25
dust guard pocket || thereof. The springs 4|
between the dust guard Hi and the formed metal
cap 48 are of considerably less strength and
greater resiliency than the springs 28 which cause
the upper and lower portions 23 and 24 of the 30
dust guard l0 to grip the hub seat M of the car
axle |'3, which ‘relative strength and resiliency
permits the dust guard II] to move with the car
axle | 3 in respect to the journal box | 2 and at
the same time grip the car axle regardless of
position of the dust guard H] in respect to its 35
means 40 for sealing the top opening of the dust
guard pocket I |.
The operation of the invention is obvious from
the description, the resiliency of the compressible
felt facings 33 and 34 of the dust guard l0 An
being relied upon to slidably seal the joint be
tween the said dust guard ‘l0 and the liner
plates I9 and 20 of the dust guard pocket H,
the total uncompressed thickness of the dust
guard l8 being slightly greater than the space
between the liner plates l9 and 28 of the said
dust guard pocket ||. The cap 40 as herein
before described provides a readily applied and
removable'seal for the top of the dust guard
pocket ||.
50
The dust guard l0 including its cap 40 is pref
erably soaked in lubricant prior to being in
serted into a dust guard pocket H for sealing
all the openings thereof after the reservoirs 29
and 3|] have been ?lled with lubricant through 55
suitably located removably plugged ?lling aper
tures, not shown. The dust guard I0 and its
cap 40 maybe readily and easily removed from
the dust ‘guard pocket II and the reservoirs
60
29 and 30 thereof re?lled.
The embodiment of the novel dust guard ||0
disclosed in Figs. 3, 4 and 8 is identical in every
respect to the dust guard shown in Figs. 1, 2, 5, 6
and '7 except that the liner plate 20 is omitted
from the inside of the partition wall |8 of the 65
journal box l2, the resilient facing 33 is omitted
from the front side of the dust guard | In, and
spring means 45 are provided on the rear of
the upper and'lower portions 230 and 240 of
the saidv dust guard M0 to constantly urge the 70
said dust guard | l0 in slidable sealed relation
ship to the liner plate I!) on the inside face of
the rear wall I‘! of the said dust guard vpocket
H with the felt facing 34 thereagainst.
Be
75
3
2,124,109
cause of being metal and formed with arcuate
ends 46, the said spring means 45 permits the
dust guard III) to slide freely in respect to the
normally rough inside surface of the said parti
tion wall [8 of the journal box 12.
It is readily observed that the cap 4E! may be
used as a part of the dust guard I!!! for sealing
the top opening of the dust guard pocket H,
however, the conventional wooden wedge ii‘! for
10 sealing the said opening may be used with the
dust guard H9 as shown in Figs. 3, 4 and 7.
The wooden wedge 41, though not preferable,
may be used with the novel dust guard M3 by
omitting the cap 4|] and springs 4| therefrom.
The embodiment of the novel dust guard
Hi0 disclosed in Fig. 9 is identical in every re
spect to the embodiment of the invention shown
in Figs. 1, 2, 5, 6 and '7 except that liner pads
I90 and 200 of felt or other suitable resilient
material have been substituted for the metal liner
plates l9 and 2!] respectively, the felt facings 33
and 34 have been omitted, and the contact shoes
21 and 28 and the reservoirs 29 and 36 have been
made slightly wider so that the said dust guard
25 I I II] will slidably seal itself against the felt liner
pads I90 and 200. Before the dust guard Hi9
is placed in the dust guard pocket II it is pref
erable that the liner pads H10 and 20!] be well
sprayed or otherwise saturated with a suitable
lubricant.
Although but several embodiments of the in
vention have been disclosed and described here
in, it will be understood that various changes
including the size, shape, arrangement and de
35 tails of the various parts thereof may be made
without departing from the spirit of the inven
tion, and it is not intended to limit the scope
of the invention other than by the terms of the
appended claims.
I claim:
1. A lubricated dust guard for sealing the
opening between a car axle and its journal box
comprising upper and lower portions each com
posed of an arcuate wear resisting shoe in con
tact with said axle and a lubricant reservoir
secured in sealed relationship thereto, the said
wear resisting shoes having a continuous slot
therein along the arcuate surface thereof in con
tact with said car axle, a lubricating strip in
50 said continuous slot, means communicating with
said reservoir for supplying lubricant therefrom
to said lubricating strip, and spring means for
gripping the said dust guard around said axle.
2. A lubricated dust guard for sealing the
opening between a car axle and its-journal box
comprising upper and lower portions each com
posed of an arcuate wear resisting shoe in con
tact with said axle and a lubricant reservoir
secured in sealed relationship thereto, the said
wear resisting shoes having a continuous slot
therein along the arcuate surface thereof in con
tact with said car axle, a lubricating strip in
said continuous slot, wicking positioned between 10
said lubricating strip and the base of said slot
communicating with said reservoir for supply
ing lubricant therefrom to said lubricating strip,
and spring means for gripping the said dust
guard around said, axle.
3. A lubricated dust guard for sealing the
opening between a car axle and its journal box
comprising upper and lower portions slidably
secured together in a plane normal to the axis
of the car axle each composed of an arcuate
wear resisting shoe in contact with said axle
and a lubricant reservoir secured in sealed rela
tionship thereto, the said wear resisting shoes .
having a continuous slot therein along the arcu
ate surface thereof in contact with said car
axle, a lubricating strip in said continuous slot,
means communicating with said reservoir for
supplying lubricant therefrom to said lubricating
strip, and spring means for gripping the said dust
guard around said axle.
4. A lubricated dust guard for sealing the
opening between a car axle and its journal box
comprising upper and lower portions each com
posed of an arcuate wear resisting shoe and a
lubricant reservoir secured in sealed relation
ship thereto, headed shafts having one of said
wear resisting shoes slidable thereon and ?xed
in the other, a compression spring on each shaft
adapted to react between the head thereof and
the slidable wear resisting shoe for constantly 40
urging said wear resisting shoes in contact with
said car axle, compressible means positioned on
said shafts between the upper and lower por
tions of said dust guard for adjustably ?lling
the space therebetween, the said wear resisting 45
shoes having a continuous slot therein along the
arcuate surface thereof in contact with said car
axle, a lubricating strip in said continuous slot,
and means communicating with said reservoir
for supplying lubricant therefrom to said lubri
cating strips.
HARRY H. GRECE.
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