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Патент USA US2129365

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Sept. 6, 1938.
2,129,365
C. J. SURDY
LOCOMOTIVE STOKER
Original Filed July 20, 1955
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BY
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oRNEYs.
Patented Sept. 6, 1938
, „. 242.92355
'
.altares ; v
LoQoMoTIvE _sroKEn
. Y Charles .1 J-JSurdy,
¿Tuckahoa Nássignor, lby >`i l
mesne assignm nts,
to ~The.-Standard `Stoker
. Company„ Incorporated, a :corporation of. `Dela
"Original application? I. July zo, ’1935, serial No.
. „j 132,339. Dividedand this application January
, 2 Claims. ' (C1. ,._iasèlsl
`Inxlocomotivestokers of thetypeto which this
invention has reference, the mainconveyor mem ,veyor member I8 having a trough portion I 9
ber extends'from beneathgthetender fuel bin
' to a pointbeneathl thehlocomotive cab decl:` and
5
is so arranged that the forward end ofsuch main
i conveyor -is at a substantial elevation above the
portion of said conveyor rearward of its forward
end. ~- The forward-‘end yof. the --main . conveyor
ymember is `connected by a flexible joint to the
«i rearward end of a'fuel elevating conveyor which
y is rigidly secured toithe hollowbackwall of the
locomotive ñrebox. ‘ Thusjthe main’ conveyor
z member is, in effect, suspended from the- elevat
ing conveyor on thelocomotive.
ç
*This _constructionimposes a'considerable strain
upon the> ñexible connectionbetween the two
`conveyors„and these strains .areztransmitted to
i the hollow backwall of the. locomotive iirebox
25
movably mounted by means of the rollers 2€) be
-neath the fuel bin
IG to receive fuel therefrom.
Within the trough portion' I9 is aconveyor screw
42| driven from its rearward end >by gearing 22 Ul
and extending forward of the tender. Immedi
ately forward of the conveyor screw 2 I, the trans
fer conveyor member I8 is provided with a for
*wardly inclined tubular portion> 23 having its
lower wall 24 stepped'downwardly at its rear 10
ward end and thence extending upwardly and
forwardly to the locomotive.
`Within the forwardlyinclined tubular portion
23 `is a conveyor screw 25, the `rearmost fuel im
pelling night 26 of which is spaced forward from
the deliveryend of the conveyor screw ZI and
Y also offset axially therefrom in a downward direc
.upon which the elevating conveyor is supported,
tion. `Between the trough portion I9 and the
«resulting in a weakened boiler structure.
tubular portion 23,-` the transfer conveyor mem
` -
ber lis providediwith a bearing 27` within which is 20
` Therefore, it Lisïthe principal..object of this in
" »a shaft I28 provided at its forward and
vention to'relieve this'strain uponthe :flexible -Ifjournalled
:joint between the two conveyors and the boiler rearward» ends with universal ¿joints 2S and Btl,
Hbackwa‘llby providing .a'n additionalrsupport for respectively.,- The' joint 29 `connects the con
`the main conveyor member, such additional »sup
port being carried by theffram‘e of the'locomotive
veyor screw »25 inoperative relation and is so
disposed that it »is `not ~within- the passage for 25
in‘such a manner `sonas `noti to transmit any ' 'fuel 'between theY
strains to the boiler backwall; f
A still further objectiof my inventionis the
. provision of means intermediate the endslof said
transfer conveyormember for additionally sup
portingthe latter during its vertical,V transverse
and longitudinal vmovement with -reference'i-to
the locomotive and tender.r
C
l»
-'
Other objects and advantages of this-inven
tion consist'in the'` novel relation of parts which
will become apparent as the following descrip-tion
is read in connection with the accompanying
drawing, wherein,
40
Fig. 1 is a central vertical medial section of
adjacent ends of a locomotivey and tender with
the invention embodied therein and shown in
similar section; and
Fig. 2 is a fragmentary view illustrating one
45 modification of the invention shown` in Fig. 1.
Referring first to Fig. 1, the locomotive A in
cludes a boiler IIJ provided with a hollow back
Wall II at the rear of the ?ireboX I2. In the
backwall II is the ñring opening I3 which is
50 above the level of the cab deck I4 and the grates
I5. Coupled to the locomotive at C is a tender B
having a fuel bin I6 above the apertured floor I1.
'I'he improved stoker for transferring fuel
from the bin I6 to the ñrebox I2 is indicated
55 generally at S and it includes the transfer con
n
_conveyor screws
ZI and 25,
vthereby eliminating‘fany fuel degradation at this
point.
`
`
The universal jointn30 operatively con
»'nects a `shaft-3l,¿driven by the gearing 22,_ with
the journalled shaft 28 _fortransmitting power to 30
operate the conveyor screw`25.
` Ateits upperiforward endfthe` tubular portion
L23 isa-provided with ¿spherical shell‘32'which'is
received in acomplernentary seat` 33 of the riser
'member' 34.v Thenlatt‘er _is rigidly- supported from
`
'the boiler.` `backwall` I I >`by, abracketßä and is in
35
clined-‘forwardly ¿fromjthe' seat "33 _at agreater
angle of inclinationv than the tubular portion 23
and greater than 45 degrees. Within the riser
member 34 is a conveyor screw 36, at its rear 40
ward end universally jointed as at 31 to the con
veyor screw 25, and terminating at its upper end
adjacent the mouth 38 of the riser member.
Fuel distributing means 39 disposed at the lir
ing opening I3 serves to distribute over the grates 45
I5 the fuel discharged through the mouth 38 of
the riser member 34. The tubular portion 23
is provided with a foot pad 40 having a spherical
bottom which rests upon a spherical surface 4I
of the bracket 42 supported on the locomotive
frame 9, thereby forming an additional support
for the transfer conveyor member intermediate
the ends thereof.
The support bracket may be better described
as being saucer or dish shaped in which is seated 55
2,129,365
2
the bottom of the foot pad 40 much after the
fashion of a cup resting in its saucer, whereby
La
contact is maintained between the adjacent sur
faces of the pad and bracket. This forms an ad
ditional support for the transfer conveyor mem
ber during its free swinging movement on the lo
comotive and tender, and also relieves the strain
from the universal connection between the ad
jacent ends of the tubular portion 23 andthe
riser member 34.
It will be apparent from the drawing that,
since the spherical shell 33 is at a considerable
elevation above the main portion of the transfer
conveyor I8, said conveyor is,'in effect, suspended
from the riser member 34. This imposes a strain
upon the universal connection 32, 33 which is
in turn transmitted to the backwall II by rea
son of the fact that said backwall rigidly sup
ports the conduit member 34. Therefore, it is
clear that the provision of an additional support
The following is claimed as new and useful:
1. In combination with an intercoupled loco
motive and tender, the former having a boiler
backwall and a frame, and the latter being pro
vided with a fuel bin, a fuel transfer conveyor 2.1
leading forwardly from said tender to said loco
motive comprising a trough portion underlying
on the locomotive frame 9 effectively relieves this
strain.
'
‘
Fig. 2 illustrates a modification wherein the tu
bular portion 50 of the transfer conveyor mem
ber I8 is inclined at the angle of inclination of
r3 a:
the riser member 5|, which is at an angle greater
than 45 degrees, and in alignment therewith.
Within the tubular portion 50 is an elevating
screw 52,` the lower end of which is operatively
connected to gearing 53 driven by a shaft 54
which leads forwardly from the gear drive'at the
rear of the screw 2l. The gearing 53 is> housed
in a casing 55 carried by the transfer conveyor
member I3. At its upper end, the screw 52 ter
minates within the riser member 5I at a point
33 belowkthe level of the distributing means 39. The
advantage of this construction over that of Fig.
1 is that the screw 52 is inclined at a relatively
steep angle, and of itself urges fuel through the
riser member by the direct action of its flights.
Since the tubular portion 50 Vis in alignment
with the `riser member 5|, the spherical seat 5|a
of the latter affords considerably less support
for the ball member 60 of the 'tubular portion
50 than does the universal joint construction il
lustrated in Fig. l. Furthermore, the conveyor
said bin and a conduit portion rigid with said
trough portion, the forward end of said conduit
portion being disposed above the level of said O
trough portion, means carried by said trough
portion movably supporting said transfer con
veyor on the tender, means carried by the boiler
backwall arranged to flexibly support the for
ward end of said conduit portion, said fuel trans*
fer conveyor being provided with a depending
foot member, and a support member carried sole
ly by the frame of the locomotive, one of said
members at its free end having a concave sur
face and the other of said members at its free 9.0
end having a convex surface, one of said curved
surfaces fitting into the other of said curved sur
faces, the engagement of said curved surfaces
arresting substantial fore and aft movement of
said transfer conveyor with respect to said loco
motive as relative fore and aft movement be~
tween the locomotive and tender occurs.
2. In combination with an intercoupled loco
motive and tender, the former having a boiler
backwall and a frame, and the latter being pro 30
vided with a fuel bin, a fuel transfer conveyor
leading forwardly from said tender to said lo
comotive comprising> a trough portion underlying
said bin and a conduit portion rigid with said
trough portion, the forward end of said conduit i
portion being disposed above the level of said
trough portion, means carried by said trough
portion movably supporting said transfer con
veyor on the tender, means carried by the boiler
backwall arranged to flexibly support the for- „2.A O
ward end of said -conduit portion, said 'fuel
transfer conveyor being provided with a depend
ing foot member, and a support member carried
solely by the frame of the locomotive, said mem
bers being disposed intermediate said first and
second named means, one of said members at its
free end having a concave surface and the other
i8 also carries the additional gearing 53 for the " 0f said members at its free end having a convex
screw 52, so it will be obvious that the use of the
surface, one of said curved surfaces ñtting into
additional supporting means, comprising the
bracket 42 carried ,by the vlocomotive frame 9
and the pad 40 which is formed with tubular
portion 50, is of special advantage in this modi
ñcation in relieving the strains imposed by the
conveyor I8, upon the> backwall Il.
~ This application is a division of my co-pending
application Serial No. 32,339, filed July 20, 1935,
for improvements in Locomotive stokers, pat
ented Mar. 16, 1937, No. 2,027,304.
the other of said curved surfaces, the engagement
of said curved surfaces arresting substantial fore
and aft movement of said transfer conveyor with
respect to said locomotive as relative fore and
aft movement between the locomotive and tender
occurs.
-
CHARLES J. SURDY.
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