close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2127923

код для вставки
Aug. `23, 1938.
2,127,923
J. B. MacKENzlE
STOKER MECHANI SM
Original Filed Jan. 23, 1935
ÍNVENTOR.
Jòâe/Uh B. Nac Ke/zjba'e
BY
‘
@ZW/MKM
-
A
TOR/ways.
Patented Aug. 23, 1938
2,127,923
UNITED STATES PATENT OFFICE
2,127,923
STOKER. MECHANISM
Joseph B. MacKenzie, Erie, Pa., assignor, by
mesne assignments, to The Standard Stoker
Company, Inc., (1922) ,
poration of Delaware
New York, N. Y., a cor
Original application January 23, 1935, Serial No. ,
3,058, now Patent No. 2,072,821, dated March
2, 1937. Divided and this application January
28, 1937, Serial No. 122,724
6 Claims. (Cl. 198-15)
This invention relates generally to stokers for deck or floor I5. 'I‘he backhead is provided with
locomotive boilers and more particularly relates the vertically elongated firing opening I8 extend
to the fuel conveying system employed in a stoker ing above and below the cab deck I5 and spaced
mechanism.
above the mud ring I9.
It is the principal object of this invention to
Rearward of the locomotive II) the tender is
provide an improved conveyor for a stoker mech
indicated at 2U. It is of ordinary construction
anism comprising a universal joint between a having the frame 2I, the fuel bunker 22, and the
pair of conduit sections having a hinged por
deck or floor 23 which carries the’usual slide
tion affording access to the interior of the: con
plates 24. These slide plates control the flow
duit sections.
of the fuel from the fuel bunker into the stoker
More specifically, it is an object of this in
S which is of novel construction and now will
vention to provide a novel flexible joint structure be described.
for a locomotive stoker conveying mechanism,
The stoker S includes a conveyor 25 leading
`such fiexible joint structure being disposed be
forwardly from the tender 20, and a fuel delivery
neath the firing deck; of the locomotive and conveyor 26 which receives fuel from the con
tender and comprising a conduit portion hinged veyor 25 and delivers it to a point above the 15
to a main conduit portion above the universal grate I2 for distribution. Comprising the con
connection between a pair of conveyor screws
veyor 25 is the open mouth trough 2l mounted
operating within the stoker conduits, the ar
beneath the tender deck 23 to receive fuel from
rangement of parts being such that upon swing
the bunker 22 through a central aperture 29 in ,20
ing the hinged portion away from the main con
the deck 23, the size of this aperture being con
duit portion, the universal joint between the con
trolled by the shiftable plates 24. Extending
veyor screws is exposed and made accessible from forwardly from the trough 2'I and rigid therewith
above the firing deck.
is a tubular conduit 3| which terminatesv at its
A still further object of this invention resides forward end beneath the locomotive cab decke
`in the provision, in the structure referred to
I5 and has loosely telescoped over its forward
above, of a clamp which forms a part of the end a sleeve-like conduit 32. At its forward end
flexible joint between a pair of stoker conduits the latter conduit is provided with a spherical
and also functions to maintain the hinged por
member 33 which is received in the spherical seat
„30 tion of one conduit to the main portion thereof. 34 of the fuel delivery conduit 35. A clamp 36
These and other objects will become apparent retains the spherical member 33 in its seat 34
`as the description of this invention is rea-d in to form a universal joint connection 3l between
connection with >the accompanying drawing, in the fuel delivery conduit 35 and the» sleeve
which,
like conduit 32.
Fig. 1 is a central longitudinal vertical sec
At the rear of the trough 2'I and rigid there
tional view through the rearward portion of a with is a gear casing 38 which houses and main
locomotive and the forward portion of its tender tains in an operative relation suitable gearing
illustrating the invention applied thereto partly (not shown) for driving the stoker conveyors.
in similar section and partly in elevation;
Power is transmitted to such gearing from the
~ 21:0
Fig. 2 is a plan View of the forward end of the motor 39 by flexible shafting 39a. Depending »f
stoker of the invention with the iirebox back
from the under side of the gear casing 38 is a
head shown in section;
spherical member 40 which rests in a comple
Fig. 3 is a sectional view taken on the line mentary seat 4I of the supporting bracket 42.
3_3 of Fig. l;
By this arrangement, the conveyor 25, at the
Fig. 4 is an enlarged View in elevation of the rearward end thereof, is mounted to pivot about
forward end portion of the movable conduit a vertical axis and also about a transverse hori
section provided with the hinged cover at the zontal axis. It will also be observed that the
`universal joint; and
rearward end of the conveyor 25 is restrained
Fig. 5 is a transverse sectional view taken on against relative fore and aft movement with
M51) I,the line 5-5 of Fig. 1, showing the spherical reference to the tender 20 by reason of the en 50
seat-like support for the movable conduit sec
gagement of the spherical member 40 in the seat
tion.
4I. Movement of the conveyor 25 about a longi
Referring to the drawing, the locomotive I0 is tudinally extending axis is prevented by provid
provided with a boiler ñrebox II, having the ing the gear casing 38 with laterally projecting
r5.5 grate I2, a backhead I3, and a cab I4 having the flanges 43, one at each side of the spherical 55
2
2,127,923
member 40, each ñange 43 resting upon a rail
44 formed at each lateral extremity of the
bracket 42 and having a convexly curved upper
surface. By the` described construction, together
with the universal joint connection 31 and the
telescopic sleeve-like conduit 32, it will be ap
parent that the necessary flexibility has been
provided for the stoker conduits when the loco
motive and tender are rounding curves or pass
10 ing over switches, frogs and turntables.
The means for conveying fuel through the
Stoker includes a conveyor screw 45 having a
portion thereof within the trough 21 and extend
ing forwardly therefrom through the tubular
conduit 3| to a point adjacent the universal con
nection 31 between the fuel delivery conduit 35
and the sleeve-like conduit 32. At its forward
end, the conveyor screw 45 is provided with a
jaw 46 which is connected to the jaw 41 of the
fuel delivery screw 48 in the conduit 35 by means
of pins 49 and a block 59 to form a universal
joint 5I between the conveyor screws 45 and 48.
The conveyor screw 45 is driven from its rear
ward end by the gearing within the gear casing
38 and conveys forwardly -the fuel which falls into
the trough 21 from the bunker 22, the fuel being
urged against the teeth 52 of a crusher 53 and
reduced to a size suitable for efficient firing.
The crushed fuel is then conveyed forwardly by
30 the conveyor screw 45 to the delivery conduit 35
where the screw 48 urges the fuel through the
upwardly opening mouth 54 of the fuel delivery
integral part, a portion of the spherical member Cn
33.
The section 56 is hinged to the sleeve-like
conduit 35 by means of a lug 51 which engages
a bolt 58 passed through the spaced ears 59 of the
conduit 32. Lateral movement of the section 56
with reference to the conduit 32 is prevented by 10
providing a seat 69 in the edges of the conduit 32
which are contiguous to the edges of the section
56. The edges of the section 56 are received in
the seat 6U and its lower portion extends below
the horizontal medial plane of the conduit 32
whereby removal of the pins 49 is facilitated.
Upward displacement of the section 56, under
normal operating conditions, is prevented by the
reason of the clamp 36 which is secured to the
delivery conduit 35 over the section 56 and by 20
providing this section with a rearwardly ex
tending lug 6I on its upper side which fits be
neath the ledge 62 of the conduit 32.
Whenever it is found that the conveyor screws
45 and 48 must be disconnected for any reason, 25
the mechanic removes the bolts 63 which secure
the clamp 36 to the delivery conduit 35 and raises
the clamp through the opening 64 in the cab deck
I5. The upper forward section 56 may then be
swung rearwardly to a position as shown by the 30
dot and dash lines in Fig. 4 whereby the pins 49
and the block 56 may be removed and replaced if
conduit 35 into the zone of action of the dis
tributor member 55 which projects the fuel to
all parts of the iirebed.
Leading forwardly and upwardly from the
found to be worn.
spherical seat 34, the fuel delivery conduit 35
articulation of the universal joint 5I becomes
limited, thereby causing irregular operation of
passes through the lower portion of the elongated
firing opening I8 and thence curves upwardly so
40 that its discharge mouth 54 opens upwardly into
the firing opening I8.
Rearward of discharge mouth 54 is mounted the
distributor member 55 arranged to issue blasts of
pressure fluid toward the ñrebox through the ori
45 fices 69. A casing 1I, formed with the conduit
35 extends above the mouth 54 and is provided
with inspection openings 12 above the distribu
tor member 55.
Above the casing 'II there is shown a portion
of a conventional firedoor 15 which closes the
upper portion of the elongated firing opening I3
against outside exposure. The openings at each
side of the delivery conduit 35 in the lower por
tion of this ñring opening are closed against
rearward
exposure by a pair of iianges 16, one
in Ul
extending laterally from each side of the con
duit, forming also a means for securing the con
duit 35 to the backhead I3 by bolts 11. A further
support for the conduit 35 is afforded by pro
60 viding it with foot pads 18 which are secured by
bolts to a bracket 19 carried by the ñrebox back
head I3 and mud ring I9.
Fuel emerging from the upwardly opening
mouth 54 is swept forwardly across a table 86
by the jets of pressure fluid issuing from the
distributor member 55.
The table 8U is sup
ported by the conduit 35 and extends forwardly
therefrom. The table 89 and the forward por
tion of the conduit 35 are protected from the
intense heat within the firebox by the vertical
grate 83.
75
sential. This can be readily accomplished by an
arrangement of parts which includes a removably
hinged upper forward section 56 of the sleeve
like conduit 32, which section includes, as an
At times it is necessary to disconnect the con
veyor screw 45 and the fuel delivery screw 48, as
for instance when the pins 49 or block 5D are
Worn to an extent that their replacement is es
At times, foreign material such as track spikes
or waste in the coal will work between the uni 35
versal joint jaws 46, 41 and the block 50 so that
the conveyor screws. By removing the clamp 36
from its position over the hinged section 56, the 40
fireman may swing the latter to a position above
the cab deck I5. Upon so doing, the universal
joint 5I is exposed and the foreign material re
moved therefrom in order to relieve the articulat
ing surfaces of this joint. It will be apparent that 45
this may be done from a position within the cab
I4, thus enabling the engine crew to make neces
sary repairs or adjustments without loss of run
ning time.
It will be apparent to those familiar with loco
motive stokers that the universal joint structure
according to this invention is highly useful in the
railroad industry because it renders possible the
convenient inspection and repair of the universal
joint 5I from a position in the locomotive cab I4
and in a manner which does not require extensive
dismantling of major parts of the stoker mecha
nism.
This application is a division of my co-pend
ing application for patent, Serial No. 3,058, filed 60
January 23, 1935, for improvements in Stoker,
now Patent No. 2,072,821, dated March 2, 1937.
I claim:
l. The combination including a pair of con
duits, a spherical seat formed in an end 0f one of 65
said conduits, a spherical member formed at the
adjacent end of the other of said conduits, said
spherical member being received in the spherical
seat of the first named conduit, a clamp detach
ably secured to said first named conduit over said 70
spherical member to form a universal connection
between said conduits, a conveyor screw in the
first named conduit, a conveyor screw in the sec
ond named conduit, and a universal joint con
necting said conveyor screws in approximate co 75
2,127,923
3
incidence with the universal connection between
being arranged with the greater part thereof be
said conduits, a section of said spherical member
being hinged to the second named conduit and
arranged to be swung away from its operative
position upon removal of said clamp.
2. The combination including a pair of con
neath said floor, a conveyor screw in the iirst
named conduit, a conveyor screw in` the second
duits, a spherical seat formed in an end of one
of said conduits, a spherical member formed at
the adjacent end of the other of said conduits,
10 said spherical member being received in the
spherical seat of the iirst named conduit, a clamp
detachably secured to said first named conduit
over said spherical member to form a universal
connection between said conduits, a conveyor
15 screw in the ñrst named conduit, a conveyor screw
in the second named conduit, and a universal
joint connecting said conveyor screws in approxi
mate Coincidence with the universal connection
between said conduits, a section of said spherical
20 member being hinged to the second named con
duit and arranged to be swung away from its
operative position upon removal of said clamp, a
portion of said section extending below the level
of the center of said universal joint.
3. In combination, a iioor, a conveying system
25
having a portion thereof beneath said floor, said
conveying system including a pair of conduits, a
spherical seat formed in an end oi one of said
conduits, a spherical member formed at the adja
30 cent end of the other of said conduits, said
spherical member being received in the spherical
seat of the i'lrst named conduit, a clamp detach
ably secured to said first named conduit over said
spherical member to form a universal connection
35 between said conduits, such universal connection
being arranged with the greater part thereof be
neath said licor, a conveyor screw in the ñrst
named conduit, a conveyor screw in the second
named conduit, and a universal joint connecting
40 said conveyor screws in approximate coincidence
with the universal connection between said con
duits, said floor being provided with an aperture
over the universal connection between said con
duits and through which aperture said clamp may
45 be removed, a section of said spherical member
being hinged to a second named conduit and ar
ranged to be swung away from its operative posi
tion through the aperture of said floor upon re
moval of said clamp.
4. In combination, a floor, a conveying system
50
having a portion thereof beneath said floor, said
conveying system including a pair of conduits, a
spherical seat formed in an end of one of said
conduits, a spherical member formed at the adja
55 cent end of the other of said conduits, said
spherical member being received in the spherical
seat of the iirst named conduit, a clamp detach
ably secured to said first named conduit over said
spherical member to form a universal connection
60 between said conduits, such universal connection
named conduit, and a universal joint connecting
said conveyor screws in approximate coincidence
with the universal connection between said con
duits, said floor being provided with an aperture
over the universal connection between said con
duits and through which aperture said clamp may
be removed, a section of said spherical member 10
being hinged to the second named conduit and
arranged to be swung away from its operative
position through the aperture of said floor upon
removal of said clamp, a portion of said section
extending below the level of the center of said 15
universal joint.
5. The combination including a pair of con
duits, a spherical seat formed in an end of one of
said conduits, a spherical member formed at the
adjacent end of the other of said conduits, said 20
spherical member being received in the spherical
seat of the ñrst named conduit, a clamp detach
ably secured to said iirst named conduit over said
spherical member to form a universal connection
between said conduits, a conveyor screw in the
25
iirst named conduit, a conveyor screw in the sec
ond named conduit, a universal joint connecting
said conveyor screws in approximate coincidence
with the universal connection between said con
duit, said spherical member including a removable 30
section, and means for hinging such removable
section to the second named conduit, said clamp
cooperating with said means for maintaining said
removable section in operative position.
6. In combination, a floor, a conveying system
having a portion thereof beneath said ñoor, said 35
conveying system including a pair of conduits, a
spherical seat formed in an end of one of said
conduits, a spherical member formed at the adja
cent end of the other of said conduits, said
spherical member being received in the spherical 40
seat of the ñrst named conduit, a clamp detach
ably secured to said i'lrst named conduit over said
spherical member to form a universal connection
between said conduits, such universal connection
being arranged with the greater part thereof be 45
neath said floor, a conveyor screw in the ñrst
named conduit, a conveyor screw in the second
named conduit, a universal joint connecting said
conveyor screws in approximate coincidence with
the universal connection between said conduits, 50
said iioor being provided with an aperture over
the universal connection between said conduits
and through which aperture said clamp may be
removed, said spherical member including a re
movable section, and means for hinging such re 55
movable section to the second named conduit, said
clamp cooperating with said means for maintain
ing said removable section in operative position.
JOSEPH B. MACKENZIE.
Документ
Категория
Без категории
Просмотров
0
Размер файла
571 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа