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Патент USA US2132823

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Oct. 11, 1938.
2,132,823
H. A. HOKE
LOCOMOTIVE FRONT END CONSTRUCTION
Filed June 4, 1936
5 Sheets-Sheet l
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YLOCOMOTIVE FRO-NT‘ END CONSTRUCTION
‘Filed June 21, 1936
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LOCOMOTIVE FRONT END CONSTRUCTION
Filed June 4, 1936
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Oct. 11, 1938.
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H. A. HOKE
2,132,823
LOCOMOTIVE FRONT END CONSTRUCTION
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Filed June 4, 1936
5 Sheets-Skieet 4
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Oct. 11,
H_ A, HOKE
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LOCOMOT'IVE FRONT END CONSTRUCTION
Filed June 4;, 1936
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Patented Oct. 11, 1938
UNETED ST'i'ES PATENT OFFICE
,
2,132,822
LOCOMOT‘IVE FRONT END‘ CONSTRUCTION
Harry A. Hoke, Altoona, Pa., assignor to The
Pennsylvania Railroad Company, Philadelphia,
Pa., a corporation of Pennsylvania
Application June 4, 1936, Serial No. 83,410
(01. 213-4)
having reference to the accompanying draw;
ings. Of the drawings:
Fig. I represents a plan view of a locomotive
front end construction embodying my invention,
and showing the pilot and coupler, in its housed 5
This invention rel ates to a front end construc
tion for a locomotive or the like, and
to the form of the pilot and the manner in which
the pilot coupler is mounted thereon.
It often occurs that when a locomotive strikes
an automobile, or similar object at a grade cross
position.
Fig. II represents a side elevation of the same.
Fig. III represents a front elevation of the
ing, the forwardly projecting front coupler of the
locomotive either penetratec the side of the ve
same.
vehicle is caught under the coupler
and retained in that positi on until the speed of
the locomotive is reduced. Thus the vehicle is
,
Figs. IV, V and VI, represent vertical cross 10
hicle, or the
carried for a distance» an d eventually dropped
the track, the locomo tive passing over the
‘ Wreckage, demolish ing
sections of the same, taken as indicated by the
lines IV—-IV, V—-V and V'I-VI, respectively, of
' Fig. III.
it, and usually fatally in
‘ juring the occup
One object of the present invention is to pro
vide a front e nd construction for a locomotive
or the like, oh aracterized by a housing for the
reception of the pilo t coupler when such coupler
is not in use, and further characterized by a
25
pilot with de?ecting surfaces so formed and so
related to the housed coupler as to minimize the
possibility of carrying or dragging an object
struck by the locomotive. As a result of such
novel construction, vehicles or other objects
struck by the locomotive are caused to be im
mediately thrown off the track, lessening the
damage to the vehicle and its occupants, and
decreasing the possibility of derailment of any
30 part of the passin
Another object of the invention is to provide,
in a locomotive front end construction of the
character described, a pilot and supporting
means for the pilot coupler, all formed integrally
d presenting substan
'32. V1. with the bumper beam, an
to objects along
tially solid deflecting surfaces
Another object of the invention is to provide
novel means for limiting thev swinging movement
40 of the pilot coupler when in use, and for main
taining the pilot coupler when not in use in a
housed position with the head of the coupler
positioned substantially flush with the general
g con?guration of the de?ecting surfaces of the
Another object of my invention is to provide a
locomotive front end construction of the char
acter described, in which the bumping load is '
better diffused throughout the front end, reduc
ing localized strains.
Other more speci?c objects and advantages
characterizing my invention will become more
fully apparent from the description hereinafter
set forth of one embo diment or example thereof,
Fig. VII represents a perspective view of the
front end construction, with the separate sec
tions spaced apart to show details of construc
tion.
Fig. VIII shows a perspective view of a loco
motive front end construction for another form
20
of my invention.
Fig. IX is a plan view showing the coupler
in assembled relation with the front of Fig.
VIII, only the pertinent portion of the‘ front
being shown, and that partially in section.
Fig. X is a sectional view, taken about the 25
lines X-—X of Fig. IX.
Fig. XI is an exploded view of the elements as
sociated with the coupler in its assembled rela
tion with the locomotive front, the coupler and
30
front being omitted; and,
Fig. XII is a perspective view of a locking ele
ment.
With reference to the drawings, Figs. I-VII,
there is shown a particular example of my in
vention in which a locomotive front end is built 35
up of three separate sections rigidly secured
together and each comprising an integral cast
ing.
The central section includes the central por
tion i of a bumper beam, and a pilot 2 formed
integrally with the bumper beam and project
ing outwardly and downwardly therefrom. The
front surfaces 3 of the pilot converge forwardly
towards the center line of the locomotive, and
form de?ecting surfaces which tend to throw off 45
to the side of the track any objects struck there
by; The pilot is cut away at one side as indi
cated at 4 to form a recess therein for housing
the pilot coupler 5.
Desirably an upstanding
block 8 is formed at the opposite side of the pilot
2, the block having a side wall ‘I which serves
to limit swinging of the pilot coupler 5 towards
that side of the pilot. From the central por
tion I of the bumper beam, there extends for
Wardly a projection 8, reinforced by webs 9, and 55
2
,
.
2,132,823
having a circular opening II] which serves to
accommodateone end of the coupler pin 5!. At
the coupler housing 4, there is formed a hori
zontal shelf 32. Above this shelf i2 there are
two circular ledges i3, I4, arranged in stepped
formation. The upper ledge M has an opening
l5 therein for supporting the lower end of the
coupler pin Ii, whereas the lower ledge I3 is
formed substantially complementary to the
shoulders H5 at the bottom of the coupler 5,, as
shown most clearly in Fig. III. At the top of,
the block 6 there is provided an additional shelf
I1. Desirably the pilot 2 is of substantially tri
angular cross section, as shown most clearly in
Fig. VII, and has openings it! in its lower por
tion to render the same as light as possible, con
sistent with the desired strength, and the central
portion i of the bumper beam is of cellular form,
_.aving a series of box-like divisions i9.
.
The wing sections of the locomotive front end
construction include wing portions la, lb of the
bumper beam, and wingportions 2a, 2b of the
pilot. As shown most clearly in Fig. VII, each
wing section is of substantially triangular cross
section and includes a shelf Ha, ill) at the level
of the shelf ll of the central section. The front
surfaces 3a, 3b of the wing sections are substan
tially solid, merging with and forming continu
ations of the deflecting surfaces 3 of the central
section. Preferably, the surfaces 3a, 3b are
rounded to provide smooth curves at each side of
the locomotive.
teps 26 are formed in the sur
faces 3a, 3b to enable a man to mount to the
top of the pilot.
For the purpose of lightening
35 the structure, holes ‘.24 are provided interiorly of
each wing section. ' The wing sections are rigidly
secured to the central section by bolts passing
through holes 22. The two wing sections are
substantial counterparts of each other, except
40 that a side wall 23 is formed opposite the block
6 for de?ning one end of the coupler housing ii.
As shown in Fig. I, the central section i of the
bumper beam is joined to the end sections la, ib,
with longitudinal frame members 2% of the loco
45. motive interposed therebetween. In this man
ner the sections of the bumper beam are rigidly
united to the vehicle frame as well as to each
other, and the bumping load is better diffused
and distributed. Surrounding the base of the
50 three sections of the locomotive front end, there
ing 4 is so designed that when the coupler 5
is swung inwardly, a wall 32 of the coupler is
maintained substantially flush with the general
con?guration of the de?ecting surfaces of the
pilot. In other words, the wall 32 of the coupler 5
supplements the function of the block 6 at the
other side of the pilot to reduce to a minimum
the size of the opening at the front of the hous
ing 4.
In Figs. VIE-XII there is shown another form
of my invention. The locomotive front shown
in perspective in Fig. VIII is similar to the front
second
described
form
above
of infront
relation
is formed
to Figs.with
I-VII.a more
regular and more inclined front surface, the
guardv 25 and the shelves i'ia, ii?) of the ?rst
form of front being eliminated. Also the shelf
E2 in the second form has been limited to the
housing recess @ and does not extend out in
front of the pin it as in the ?rst form. It is 20
also to be noted that wall I of the ?rst form has
been eliminated in the second form, leaving a
rounded edge ill to limit the movement of the
coupler 5.
The coupler 5 in the second form of my in 25
vention has welded to its rear end a bumping
block 45 and a ring 48 cut out to receive the
shank of the coupler 5 to which the ring 46 is
Welded at its ends
The ring 63 is also weld
ed at points £58 to the block 535 which is rounded 30
to conform to the inner surface of the ring lit‘.
The coupler 5 is held in place by pin it as in the
?rst form, the space behind the pin ii being in
creased, and a concave bumping wall
pro~
vided having the same curvature as the
outer surface of ring 66 with which there is
sliding contact. Two washers 54 are shown on
top of the coupler 5 between it and the under
side of projection 8. These washers 551 are used
for making adjustments for wear of wheels, de~ 40
flection of springs, etc., and sometimes one or
both of them are placed under the coupler in
stead of both on top, as shown.
The coupler 5 is maintained either in its op—
erating or in its housed position by means of 45
locking element 5i] which fits into holes 5i, 52 in
ledge is. In Fig. IX the coupler 5 is shown in
extending horizontally around the bottom edge
its operating position with the locking element
in hole St. The broken lines show the coupler
5 in its housed position with locking element 50 50
in hole 52. In the housed position the coupler
of the pilot and secured thereto.
For limiting the swinging movement of the
coupler 5, a movable stop member as is em~
ployed. The stop member 26 is desirably at
coupler housing 4. The locking element 5!) is
attached to the coupler 5 by chain 2?. The
coupler 5 is further supported on the ledge i3 55
is a guard 25 in the form of a continuous skirt
tached to the locomotive as a permanent fixture
by means of ?exible chain 2?, as shown in Fig.
III, and it has thereon a pair of depending'pins
28 which ?t alternatively, either within a pair
of holes 353, or within a pair of holes 3| in the
lower ledge it. When the coupler is in use, the
stop member 2i} is positioned with its pins 28
registering with the holes 35. Under this con
65 dition, angular movement of the coupler 5 is
limited at the one side by the wall I of the
block 6, and at the other side by the end of the
stop member 26. When the coupler 5 is not
5 is held snugly against the rear wall of the
by means'of a bearing plate 55 which is cut out
at 55:‘ to allow locking element 56 to seat in holes
5i and 52. The bearing plate 55 is held
place
by pins in the holes 58 which are in registry
with holes 57 in shelf i3.
60
It will be seen that in this form of my inven
tion the bumping load on the pin it is to a con
siderable extent reduced and taken by the bump
ing block Q5 and wall 49 to be diifused through
the entire front end of the locomotive. The 65
ring 46 closes to a large extent the opening in
the locomotive front when the coupler 5 is in its
housed position. This alone is a material reduc
70 ber 25, and swinging the coupler 5 inwardly into , tion in the necessary irregularities in the front
face on which objects might catch in cases of 70
the housing 4 to the position shown in Figs. I collision.
used, it is housed by withdrawing the stop mem
and III, and then replacing the stop member 23
with its pins 28 engaging the holes 30. Under
this condition the coupler 5 is held in ?xed po
75 sition within the housing 4. The coupler hous
From the above description it will be apparent
that the locomotive front end of this invention is
characterized by a pilot having substantially solid
de?ecting surfaces surrounding a coupler hous 75
3
2,182,823
ing, there being no projections or sharp edges ex
tending forwardly from such solid surfaces.
Moreover, the pilot being formed integrally with
thebumper beam is materially strengthened and
block for distributing the bumping load through
said front end for a locomotive or the like.
4. In a front end for a locomotive or the like,
a bumper, a pilot on said bumper, a coupler hav
rendered capable of withstanding a severe shook
without distorting or damaging the front end of
the locomotive. The bumping load is well dif
fused through the entire front and localized
strains are reduced. The coupler may readily be
swung from a forwardly extending position to a
10 housed position, and when housed becomes itself
a part of the pilot assisting in de?ecting away
from the track any object struck thereby.
While I have described my invention with refer
ence to two speci?c examples thereof, and have
15 disclosed herein a front end construction made
up Of several sections secured together, it will
be apparent that various changes may be made
in the form of the construction herein selected
for illustration, and that the invention is not
20 limited to a sectional type of front end, but com
prehends many variations. Also, it will be ap
parent that certain features of the invention may
at times be used to advantage without a cor
responding use of other features, all without‘ de
25 parting from the spirit of the invention as de
?ned in the annexed claims.
Having thus described my invention, I claim:
ing a bumping block at its rear end, said coupler
being in a recess in said pilot, a ring out out to
receive the coupler shank and attached thereto, I
said ‘ring extending around said bumping block
which is curved ‘to ?t said ring, and a concave
bumping wall formed in said pilot, said wall being 10
in sliding contact with said ring.
5. In a front end for a locomotive or the like,
a bumper, a pilot on said bumper having sub
stantially solid converging de?ecting surfaces,
wings extending forwardly from said bumper at 15
the sides of the pilot, said wings having substan
tially solid front surfaces merging with and
forming continuations of the de?ecting surfaces
of the pilot, a coupler housing disposed between
said wings, a ledge near the base of said housing, 20
a coupler having a bumping block pivotally
mounted for swinging movement around said
ledge, a locking element adapted to occupy dif
ferent positions on said ledge to limit the swing
ing of the coupler, a ring out out to receive the 25
coupler shank and attached thereto, said ring ex
tending around the bumping block, and a bump
ing wall in sliding contact with said ring, said
coupler being adapted to be received within the
1. In a front endfor a locomotive or the like housing and to be maintained therein by said 30
having frame members, a bumper having a cen
locking element with the coupler head and said
30 tral portion and separate wing portions, said
ring substantially ?ush with the general con
frame members extending between said wing por
?guration of said de?ecting surfaces.
tions and said central portion and being attached
thereto, a pilot formed integrally with the cen
tral portion of said bumper and ‘having substan
35 tially solid converging de?ecting surfaces, sepa
40
tially solid converging de?ecting surfaces, a
coupler housing disposed within said de?ecting
rate wings attached to said pilot and formed in
tegrally with the separate wing portions of said
bumper and extending forwardly at the sides of
surfaces, a coupler pivotally mounted in said
housing and adapted when not in use to be re
ceived within the housing with the coupler head
the pilot and presenting substantially smooth and
solid front surfaces merging with and forming
maintained substantially ?ush with the general
functional continuations of the de?ecting sur
faces of the pilot, a coupler housing formed in
the upper part of said pilot between said wings,
forwardly extending projections formed integ
45 rally with the central portion of said bumper
and adapted to support the ends of a coupler
pin, and a coupler pivotally mounted between
con?guration of said de?ecting surfaces, and a
ring extending around the back end of the
coupler, said ring being of a size that its outer
surface lies close to one edge of said coupler hous 45
ing so that the surface of said ring is a general
continuation of said de?ecting surfaces.
v
not in use to be received within said housing.
2. In a front end for a locomotive or the like,
7. The invention of claim 6 characterized fur
ther by the fact that the back end of said coupler
is formed to ?t the inner surface of said ring and
said ring is in sliding contact with a concave
bumping wall formed in said coupler housing.
a bumper having separate ends, a pilot formed
integrally with said bumper and having substan
8. In a front end for a locomotive or the like,
a bumper, a pilot on said bumper having substan
tially solid converging de?ecting surfaces, sepa--v
tially solid converging de?ecting surfaces, wings 55
extending forwardly from said bumper at the
sides of the pilot, said wings having substan
tially solid front surfaces merging with and form
ing continuations of the de?ecting surfaces of the
pilot, a coupler housing disposed between'said
wings, and a coupler pivotally mounted at said
said projections, said coupler being adapted when
50
6. In a front end for a locomotive or the like,
a bumper, a pilot on said bumper having substan 35
rate wings attached to said pilot and formed in
55 tegrally with the ends of said bumper and ex
tending forwardly to ‘present substantially solid
front surfaces merging with and forming lateral
continuations of the deflecting surfaces of the
pilot, a coupler housing formed in the upper
60 portion of said pilot between said wings, and a
coupler pivotally mounted on said bumper and
adapted when not in use to be received within
said housing.
' 3. In a front end for a locomotive or the like,
65 a bumper, a pilot formed integrally on said
bumper, a coupler having a bumping block at its
back end, said bumping block having a ring at
tached thereto for increasing the bumping area,
and a bumping wall formed in said integral
70 bumper and pilot, said bumping wall being in.
sliding contact with the ring of said bumping
housing and adapted when not in use to be re-v
ceived within the housing with the coupler head
maintained substantially ?ush with the general
con?guration of said de?ecting surfaces, said
coupler having a ring extending around the back
part of the coupler, said ring being cut out to re
ceive the coupler shank, whereby the coupler in
its housed position offers a more uniform de?ect
ing surface.
HARRY A. HOKE.
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