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Патент USA US3082526

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March 26, 1963
3,082,518
E. H. BLATTNER
METHOD oF REMovING A RAILWAY coUPLER
Filed April 5. 1957
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United States ¿Patent 0 "aÍCC
1
3,082,518
Patented Mar. 26, 1963
2
compression stage of the method of the present inven
3,082,518
METHGD 0F REMÜVING A RAILWAY CÜUPLER
Emil H. Bîattner, Wiliiamsviile, N.Y.; Elizabeth Biattner,
executrix of said Emil H. Biattner, deceased, assxgnor
to Symington Wayne Corporation, a corporation of
Maryland
Filed Apr. 3, 1957, Ser. No. 650,460
5 Claims. (Cl. 29--427)
tion;
FIGURE 2 is a side elevational view, partly in section,
o-f the structure of FIGURE 1 showing the relation be
tween the several components after the force compress
ing the draft gear has -been released to free the coupling
pin for ready removal and reapplication; and
FIGURE 3 is an end elevational view of the preferred
form of jack shown in side elevation in FIGURE 1.
This invention relates to A.A.R. alternate standard 10
Referring now in detail to the drawings, in which like
type “F” and like couplers and particularly to a method
reference characters designate like parts, the common
and means for removing such a coupler from a railway
characteristic of couplers removable in accordance with
vehicle.
the method and means of the present invention is that
For many years, it was the practice in the railway art
the coupler is held in assembled relation by a coupling
to hold a coupler in assembled relation in the underframe
pin connecting it directly to an associated yoke and ap
of a railway vehicle by a draft key connecting the cou
plies bufting for-ces to an associated cushioning mecha
pler to the center sills. However, with the acceptance
nism through a follower engaging its boot. As exem
as standard of the type “H” coupler and, more recently,
plary of such couplers, the A.A.R. alternate standard
the type “F” coupler, the practice was introduced of
type “F” coupler has been employed for illustrating the
providing no direct connection between the coupler and
method and means of this invention and the term “type
the center sills and instead holding the coupler in assem
F coupler” as used hereinafter is intended to include both
bled relation by a -pin connection, directly or indirectly,
the “type F” and any other coupler possessing the above
characteristic.
The type “F” coupler is not only connected by a cou
In the typical installation shown in FIGURES 1 and
pling pin directly to its yoke but in the usual installation 25 2, a type “F” coupler designated as 1 is connected for
transmits bufiing `forces to the associated draft gear or
relative universal angling to a vertical yoke 2 by a cylin
cushioning mechanism independently of the yoke through
drical coupling pin 3 which extends through a vertical
a follower engaging the butt of the coupler. This ar
slot 4 in the butt portion 5 of the coupler and has its
rangement, while of advantage in many respects, has the
ends received in aligned vertical openings 6 in the ver
disadvantage of binding the coupler pin between the cou~ 30 tically spaced arms or straps 7 of the yoke. As will be
pier and the yoke, making removal of the pin extremely
noted, both the slot 4 and the openings 6 are slightly
difficult, especially when the forces exerted by the draft
elongated longitudinally relative to the diameter of the
gear on the butt of the coupler in the normal position
pin 3 to relieve the pin of shearing stresses under bufiing
of the latter are excessive due to high initial compression
forces. The coupler 1 has its shank t8 supported in the
to an associated yoke.
of the draft gear or variations within the permissive lim
its in the size of the draft gear pocket. A number of
remedies have been proposed for this problem, among
them the provision of a tapped hole in the bottom of the
coupling pin and a collar on the pin so that the pin can
be forcibly removed. However, none appears practical
and the proposed remedies possess in common the defect
of comparable impracticability in reapplying the pin.
The primary object of the present invention is to pro
vide a method and means for removing a type “F” and
like coupler from a railway vehicle, whereby the cou- -
pling pin is relieved of stress so as to be readily removed
usual manner on a resilient coupler carrier 9, the carrier
iron 10 of which slides in a pocket 11 in a combined
striking casting and coupler carrier 12, is urged upward
ly relative theretov to the limit permitted by the stops
(not shown) by coil springs 13 and is limited in its down
ward movement by a lip or flange 14 outstanding from
all sides of its upper wall 15 and engageable with the
upper edges of the upstanding front and rear walls 16
of the pocket 11.
The coupler 1 has the usual convexly spherical and
cylindrical ‘butt 17 which, in normal position and under
‘buíling'forces, is adapted to seat in and Ibe engaged by
and rea-pplied.
a forwardly facing concave pocket or recess 18 in a front
Another object of the invention is to provide a meth
od of removing a type “F” and like coupler wherein
follower 19, the latter at its sides engaging and being
limited in lforward movement by front stop or draft lugs
2d integral with the combined striking casting and cou
force is initially applied to compress the associated draft '
gear and, after the draft gear has been restrained against
expansion, the compressive force is released, thereby
freeing the coupling pin of stress.
An additional object of the invention is to provide an
improved method of removing a type “F” and like cou
pier wherein the associated draft gear is initially com
pressed by application of force between the striker and
the coupler horn and this force, although applied cif
pier carrier 12. The typical yoke 2 which contains or
straddles the front follower 19, has its longitudinally ex
tending arms 7 joined at their rear ends by a rear wall
2i which, in the normal or at-rest position of the cou
pier it, has its front face 22 substantially co-planar with
rear stop lugs 23 fixed to the center sills 24- and defining
therewithin, with the front stop lugs 2t), a draft gear
pocket 25. The yoke 2 may contain a rear follower
center of the coupler, is made to act substantially entire
(not shown) normally resting against the rear stop lugs
ly to compress the draft gear by restraining downward
23 and have its front and rear lfollowers yieldably urged
angling of the coupler during its application.
A further object of the invention is to provide an im
proved jack for applying the force by which the draft
apart longitudinally by an interposed cushioning mech
anism or, as in the disclosed embodiment, a rear follower
may be dispensed with by utilizing a cushioning mecha
gear is compressed in order to free the coupling pin.
nism in the form of a housed draft gear 26, the rear end
Other objects and advantages of the invention will ap 65 27 of the housing 28 of which normally rests against the
pear hereinafter in the detailed description, be particu
rear stop lugs 23. The draft gear 26 has the usual
larly pointed out in the appended claims and be illus
plunger 29 projecting from the front end of its hous
trated in the accompanying drawings, in which:
ing 2S and bearing against the rear face 30 of the front
FIGURE 1 is a side elevational View, partly in section,
follower 19.
of a typical installation of a type “F” coupler showing 70
Once installed, the several components are held in
the relation of the several components at the end of the
assembled relation in the center sills 24 by a cross tie 3‘1
3,082,518
3
4
secured to the sills below the yoke 2 and a retaining plate
the jack 37 is comprised of a pair of jaws 40 hinged to
32 carried by the combined striking casting and coupler
gether at one end and each having on its outer face 41,
carrier `12, and underlying the coupling pin 3, as well as
between its free end 42 and the hinge 43, a serrated or
by the coupler carrier 9 which supports the shank 8 of
roughened shoulder 44. Intermediate its shoulder 44
the coupler î.
5 and its free or outer end 42, one of the jaws 49 has in its
Acting forwardly against the front follower 19 and
outer portion an internally threaded transverse bore 45
rearwardly either directly or through an interposed rear
for receiving a screw 46, the inner end 47 of which is
follower against the rear stop lugs 23 and rear wall 21
adapted to engage and bear against the inner face 43 of
of the yoke 2, the draft gear 26 in the absence of external
the other of the jaws 40. The head 49 of the screw 45
forces will hold the coupler 1, yoke 2 and associated 10 is provided with a pair of transverse openings 50 spaced
parts or elements in their normal position in the center
axially and disposed substantially normal to each other for
sills 24. To eliminate slack in the installation, the sev
selectively receiving a rod or lever 51 by which the
eral parts, including the coupler and yoke, are so ar
ranged and constructed that the front follower 19 nor
mally will be urged by the draft gear 26 into bearing en
gagement with both the front stop lugs 29 and the butt
17 of the coupler i. At the same time holding the Vrear
screw is turned to spread or vary the angular spacing or
relative angnlarity of the jaws 40.
With its jaws di! initially contracted or collapsed suffi
ciently to enable it to be inserted hinge or hinged end 43
down into the space between the coupler horn 35 and
striker 36 and its serrated shoulders 44 confronting re
wall 2l of the yoke 2 in position between the rear'stop
lugs 23, the draft gear thus normally will bind the cou
spectively the striker and the horn, the jack 37 is then
pling pin 3 between the front ends of the openings 6 in 20 expanded by turning its screw 46 in through the actuat
the yoke arms ’i and the front face 33 of a pillow block
ing lever 511, the consequent spreading of its shoulders
34 deñning the rear end of the part of the vertical slot
4 in the butt portion 5 alloted to the pin. It is this bind
ing that gives rise to the difficulty in removing the cou
pling pin 3 upon which removability of the coupler 1
for repair or other purpose is dependent and to the relief
of this binding that the method and means of this inven
applying a force against the striker and on the horn to
move the coupler forwardly. The amount of force
needed to obtain the spacing required to free the coupling
pin will of course vary with the capacity and precom
pression of the cushioning mechanism and with variations
in the draft gear pocket 2S. As a consequence, while a
much lesser force will normally suffice, the jack 37 is
In accordance with the method of this invention, force
designed to apply a force on the order of 30,000 pounds
is applied between the horn 3‘5 of the coupler and the 30 to take care of any eventuality.
striker I36 of the combined striking casting and coupler
From the above detailed description, it will be ap
carrier 12 by a jack 37 to move or shift the coupler for
parent that there has been provided an improved method
wardly, the carrier iron preferably first being ñxed in
for removing a type “F” coupler from a railway vehicle
position to eliminate any tendency of the off-center force
and a means especially suited for practicing the method,
to swing the coupler downwardly by the insertion of 35 both the method and means being simple and effective and
wedges 38 at either side of the carrier iron between its
enabling the coupler to be removed by freeing the cou
outstanding lip 14 and the upper edges of the front and
pling pin of the stresses to which it is normally subjected.
rear walls 16. Transmitted through the coupling pin 3
lt will be understood that the described and disclosed
to the yoke 2 and through the rear wall 21 of the latter
embodiments are merely exemplary of the invention and
tion are directed.
to the rear end of the draft gear or other cushioning 40 that all modifications are intended to be included which
do not depart from either the spirit of the invention or
mechanism 26, this forward longitudinal force, by pulling
the yoke forwardly, compresses the draft gear between
the front follower, stopped in forward movement by
the front stop lugs 20, and the rear wall of the yoke.
The application of this force is continued until the cou
pler i has been shifted forward sufliciently to provide
the scope of the appended claims.
Having described my invention, I claim:
l. A method of removing a coupler from a railway
45 vehicle, wherein a coupling pin connects the coupler to
a yoke and the pin normally is bound by opposed forces
substantial clearance between its butt 17 and the front
follower i9', as well as between the rear end 27 of the
exerted on the yoke and the coupler by a cushioning
mechanism contained in the yoke between front and rear
housing ZS or of a rear follower if one is employed. A
stop lugs ñxed to the vehicle and acting on the coupler
secc-nd set of wedges 39, oneV at either side, is then inter 50 through a front follower normally bearing -against the
posed between the rear stop lugs 23 and the rear end 27
front stop lugs, comprising applying force -between a
of the cushioning mechanism to hold the compression
horn of the coupler and a striker ñxed to the vehicle to
of the cushioning mechanism derived from the applica
shift the coupler forwardly and compress the cushioning
tion of the longitudinal force. Thereafter, the longitudi
mechanism between a rear wall of the yoke and the front
nal force is released, producing slack between the cou 55 follower bearing against the front stop lugs, inserting
pler 1, coupling pin 3 and yoke 2, substantially to the
wedges to take up the resultant clearance provided by
extent of compression of the cushioning mechanism.
such shifting between a rear end of said mechanism and
No longer bound between the coupler and yoke, the
the rear stop lugs and hold said mechanism compressed,
coupling pin 3 is free to drop out of place and release
and subsequently releasing said applied force thereby
the coupler on removal of the retaining plate 32. By
freeing said coupling pin from >binding forces normally
leaving the second set of wedges 39 in place in the interim,
applied thereto by said coupler and yoke.
the coupling pin also is free to be reapplied to connect
2. A method of removing a coupler from a railway
the yoke 2. to the repaired or a replacement coupler 1.
vehicle, wherein a coupling pin connects the coupler to a
While it may be desirable to remove tbe wedges 3S hold
yoke and the pin normally is bound by opposed forces
ing the carrier iron in place after the reinstallation of 05 exerted on the yoke and the coupler by a cushioning
the coupler has been completed, it will not be necessary
mechanism contained in the yoke between front and rear
to remove the second set of wedges 39 if they are in
stop lugs fixed to the vehicle and acting on the coupler
' stalled from the bottom, as in the disclosed embodiment,
through a front follower normally bearing against the
since in service they will be freed and drop to the ground
front stop lugs, comprising holding an associated carrier
on forward motion of the rear end 27 of the cushion
iron at coupling height while applying force between a
horn of the coupler and a striker ñXed to the vehicle to
ing mechanism 26 under draft forces.
shift the coupler forwardly and compress the cushioning
The jack 37 shown in FIGURES l and 2 is especially
mechanism between a rear wall of the yoke and front
designed for insertion between the coupler horn 35 and
follower bearing against the front stop lugs, inserting
striker 36 to apply the forward longitudinal force by
which the coupling pin 3 is freed. In its preferred form, 75 wedges to take up the resultant clearance provided by
3,082,518
5
6
such shifting between a rear end of said mechanism and
the rear stop lugs and hold said mechanism compressed,
mechanism compressed, and subsequently contracting and
removing said jack, thereby freeing said pin and enabling
and subsequently releasing said applied force, thereby
freeing said coupling pin from binding forces normally
applied thereto by said coupler and yoke.
said coupler to be removed.
5. A method of removing a coupler from a railway
vehicle, wherein a coupling pin connects the coupler to a
3. A method of removing a coupler from a railway
yoke and the pin normally is bound by opposed forces
vehicle, wherein a coupling pin connects the coupler to
a yoke and the pin normally is bound by opposed forces
exerted on the yoke and the coupler by a cushioning
mechanism contained in the yoke between front and rear
stop lugs fixed to the vehicle and acting on the coupler
exerted on the yoke and the coupler by a cushioning mech
anism contained in the yoke between front and rear stop
lugs fixed to the vehicle and acting on the coupler through
a front follower normally bearing against the front stop
lugs, comprising inserting a jack having a pair of jaws
through a front follower normally bearing against the
front stop lugs, comprising applying force between a
ystriker fixed to the vehicle with a shoulder on an outer
horn of the coupler `and a striker iixed to the vehicle to»
shift the coupler forwardly and compress the cushioning
mechanism between a rear wall of the yoke and the front
follower bearing against 'the front stop lugs, inserting
hinged at one end between a horn of the coupler and a
face of an intermediate portion -of each jaw in engage
ment with one of said horn and striker, :applying force
through a screw threaded through an outer portion of
one of Ithe jaws and acting against a confronting face of
the 4other jaw to shift the coupler forwardly and compress
the cushioning mechanism between a rear wall of the
wedges from below to take up the resultant clearance
provided by such shifting between a rear end of said
mechanism and the rear stop lugs and hold said mech 20 yoke and the front follower bearing against front stop
-anism compressed, and subsequently releasing said applied
lugs, inserting wedges to take up the resultant clearance
force, thereby freeing said coupling pin from binding
provided by such shifting between the rear end of said
forces normally applied thereto by said coupler and yoke.
mechanism and rear stop lugs and hold said mechanism
4. A method of removing a coupler from a railway
compressed, and subsequently releasing said applied force
vehicle, wherein a coupling pin connects the coupler to
by retracting said screw, thereby freeing said coupling
a yoke and lthe pin normally is bound by opposed forces
exerted on the yoke and the coupler by a cushioning
mechanism contained in the yoke between front and rear
stop lugs ñXed to the vehicle and acting on the coupler
through a front follower normally bearing against the
front stop lugs, comprising inserting wedges between a
lip outstanding from a top wall of an associated carrier
iron and front and rear walls of a pocket in a combined
striking casting and coupler carrier pocketing said iron to
hold said iron at coupling height, inserting a jack be 35
tween a horn of said coupler and a striker integral with
said combined coupler carrier and striking casting, eX
panding said jack to shift said coupler forwardly and
compress the cushioning mechanism between la rear wall
of the yoke and the front follower bearing against the 40
front stop lugs, inserting wedges to take up the resultant
clearance provided by such shifting between a rear end
of said mechanism and the rear stop lugs and hold said
pin from binding forces normally applied thereto by said
coupler and yoke.
References Cited in the ñle of this patent
UNITED STATES PATENTS
Re. 6,364
83,138
Armstrong _____________ __ Apr. 6, 1875
De Bergue ____________ -_ Oct. 20, 1868
354,461
466,016
472,200
1,051,633
1,250,910
1,700,101
2,113,598
2,196,715
Bussing ______________ _... Dec. 14,
Gustin et a1 ___________ __ Dec. 29,
Seiler ________________ __ Apr. 5,
Price ________________ __ Jan. 28,
Lowry ______________ __ Dec. 18,
Smith _______________ __,_ Jan. 22,
Mueller ______________ __ Apr. 12,
Wiedman _____________ __ Apr. 9,
1886
1891
1892.
1913
1917
1929
1938
1940
FOREIGN PATENTS
525,994
Canada _______________ __ Iune 5, 1956
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