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Патент USA US3096839

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July 9, 1963
F. PLASSER ET AL
3,096,829
MACHINE FOR TREATING BALLAST IN A RAILROAD BED
Filed April 25, 1960
I
INVENTORS
Unite Sta
A
ICQ
3,995,829
Patented July 9, 1963
2
1
ballast treating implement extending substantially hori
3,096,829
MACHINE FUR TREATING BALLAST IN A
RAILROAD BED
Franz Plasser and Josef Theurer, both of Johannesgasse 3,
Vienna, Austria
Filed Apr. 25, 1960, Ser- No. 24,556
Claims priority, application Austria Apr. 29, 1959
7 Claims. (Cl. 171-16)
zontally therefrom for ‘positioning in the ballast under,
and approximately to the center of, the track. A frame
is p-ivotally mounted on each tractor and carries wheels
for engagement with the adjacent rail. Each frame ex
tends approximately to the center of the track, and means
is provided for temporarily coupling the frames at the
center of the track. When a train approaches, the cou
pling means may be readily released‘ and the frames are
The present invention relates to machines for treating 10 pivoted out of the space de?ned by the track so that the
train may pass.
or cleaning ballast supporting a railroad track including
This embodiment has the particular advantage that
two elongated rails and tie means transversely connecting
the tractors as well as the ballast treating implements
said rails, and more particularly to that type of ballast
may ‘be of very light construction so that they may be
cleaning apparatus comprising a vehicle, for instance a
track-type tractor, traveling laterally adjacent the track 15 transported with ease and the implements may be intro
duced in the ballast Without di?iculty. If such an ap
and supporting a ballast treating implement, for instance
paratus is used for cleaning a railroad bed supporting
a ballast conveyor, which extends substantially horizon
a single track, each implement extends only to the center
tally from the vehicle for positioning in the ballast under
of the track. This apparatus may, however, be advan
the track.
tageously used for cleaning a railroad bed supporting
Machines of this general type are known and have the
two tracks, in which case one tractor travels along the
advantage that they do not interfere with the passage of
outside rail of each track. Such an operation was not
trains. The ballast treating implement remains in the
ballast bed when a train passes and the tractor is ar
possible with conventional machines of this type.
Preferably, the guide means is pivotally mounted on
ranged at a sufficient distance adjacent the track to permit
25 the vehicle, for instance for movement about a pivot
passage of the train.
whose axis is parallel to the track so that it may ‘be
However, such machines also have some disadvantages
readily folded back upon the approach of a train.
which result particularly from the lack of guidance of
If two tractors are used, the guide means may also
the tractor while it travels along the track. This has
necessitated the use of an auxiliary vehicle at the other
side of the track to guide the free end of the ballast treat
ing implement and even this has not always been success
extend all the Way across the track from one tractor to
30 .the other and may be removably connected thereto. Since
such guide means, for instance a frame carrying guide
wheels, may .be very light, it can be manually removed
from the track Without any di?iculty.
Furthermore, if the guide means is a frame running
cult to synchronize the forward movement of the two
vehicles so that neither lagged behind or sped ahead and 35 on the track on guide wheels, this frame itself may be
used to transport the tractor with its ballast treating im
it was equally difficult to regulate the immersion depth
plements along the track from one operating location to
of the implement in the ballast during the forward move
‘another, the tractor vbeing merely pivoted onto the frame
ment. Jamming occurred easily and often, which caused
at the end of one operation and the frame being ,used
great time losses during operation. Tilting was due pri
for transporting the tractor to the next operation. No
marily to the fact that the tractor needed considerable
ful in assuring the proper transverse position of the im
plement in the ballast. It was time-consuming and di?i
space for movement next to the track and that the areas
next to a railroad track usually are not at all even and
tend to be inclined. Finally, the installation of the ap
paratus proved to be quite di?icult because its parts were
heavy and bulky. Considerable preparations, including
extensive digging, were required as Well as powerful
cranes and transport means for putting the apparatus
special transport means for the machine is required.
The above and other objects, advantages and features
of the present invention will be more fully explained in
the following detailed description of one embodiment
thereof, taken in conjunction with the accompanying
drawing which illustrates certain structural details with
out limiting the invention thereto.
into operation. All this timeaconsuming and heavy labor
In the drawing,
had to be repeated each time the apparatus reached a
FIG. 1 is a side view of the tractor 'with the ballast con
Since the apparatus does not operate while a train
passes over the operating area, the vehicle requires no
ing, conveying and replacing the ballast in the bed. The
guidance during this period when it remains standing
still adjacent the track.
adjacent the track '16 and is suf?ciently removed from the
point without a regular ballast bed, such as crossings, 50 veyor and cleaning means, taken along line 1-—1 of
FIG. 2;
bridges, stations and the like, where the implement had
FIG. 2 is a top view of the tractor with its guide means,
to be removed from the ballast, the tractor moved to
taken along line 2--2‘ of FIG. 1; and
the location where the ballast bed started again and the
FIG. 3 is a vertical section taken along line 3—3 of
apparatus had to be put into operation anew.
_
It is the primary object of the present invention to pro 55 FIG. 1.
The description and the drawing are con?ned to the im
vide a simpler and lighter machine of this type, which
provement provided by the invention and to such parts
has all of its advantages, but whose secure guidance
as necessarily cooperate therewith and as may be required
along the track is assured.
to a complete understanding thereof. Conventional and
This and other objects are accomplished in accordance
with this invention by mounting on the vehicle a guide 60 non-essential features, such as details of the ballast con
veyor and cleaning implements, which are well known
means for engagement with at least one rail of the track
.in the art ‘and whose speci?c structures are of no im
whereby the vehicle is guided along the track as it travels
pontance in respect to the invention, have been omitted
adjacent thereto and by providing means for temporarily
or schematically indicated.
moving the guide means out of the space de?ned by the
Referring now to the drawing, the vehicle 1 comprises
track whereby the track is free .for the passage of trains. 65
a flat support for the various means for receiving, clean
support forms part of a track-laying tractor which travels
In accordance with one preferred embodiment of the 70 railroad track to permit a train to pass by the tractor.
A front bucket conveyor 3 serves to pick up and con
invention, a pair of tractors travels laterally adjacent a
vey ballast from the lateral edges of the ballast bed and
respective rail of the track, each tractor supporting a
3,096,829
3
4
a rear bucket conveyor 4 receives the ballast transported
least one rail of the track whereby the vehicle is guided
along the track as it travels adjacent thereto on said wheel
means thereof, and means for temporarily moving the
guide means out of the space de?ned ‘by the track.
2. The machine of claiml, wherein said guide means
thereto by the horizontal ballast treating implement 5
which is illustrated as a scraper conveyor extending into
the ballast under the track and approximately to the
center thereof. The ballast from the bed edges, which
is picked up by conveyor 3, is discharged onto a vibra
tory sieve 7 by endless conveyor band 6 while the con
veyor 4 directly discharges the ballast onto the sieve.
The entire ballast is cleaned while moving over the down
is a frame carrying wheels adapted to engage said rail.
3. A machine for treating ballast supporting a railroad
track including two elongated rails and tie means trans
versely connecting said rails, comprising a vehicle
wardly inclined sieve, which may be vibrated in a manner 10 equipped with wheel means for travel laterally adjacent
Well known per se, and the cleaned ballast is deposited
the track, a ballast treating implement supported on the
by gravity from sieve 7 onto endless conveyor band 8.
vehicle and extending substantially horizontally therefrom
Conveyor band 8 may be pivoted about pivot '17 so that
for positioning in the ballast under the track, a guide
the cleaned ballast can be discharged at any desired place
means pivotally mounted on the vehicle for movement of
at the edges of the bed or within the space de?ned by the 15 the guide means into engagement with at least one rail
track. The soil, dirt and other undesired waste drops
of the track whereby the vehicle is guided along the track
through sieve 7 onto transversely extending endless con
as it travels adjacent thereto on said wheel means thereof
veyor band 9 which transports the waste away from the
and out of the space de?ned by the track whereby the
railroad bed. The front end of the tractor is supported on
track is free for the passage of trains.
a continuous driven track belt 2 and the rear end is sup 20
4. A machine for treating ballast supporting a railroad
ported on a support roll it) which is rotatably journaled
track including two elongated rails and tie means trans
in the tractor frame. The belt 2 ‘and roller 10 constitute
versely connecting said rails, comprising a pair of vehicles,
the wheel means of the tractor.
each having wheel means for travel laterally adjacent a
In accordance with the present invention, this ballast
respective rail of the track, a ballast treating implement
cleaning vehicle has a guide means mounted thereon 25 supported on each vehicle and extending substantially
whereby the vehicle is guided along the track as it travels
horizontally therefrom for positioning in the ballast under
adjacent thereto.
In the illustrated embodiment, the
the track, each implement extending approximately to
guide means is constituted by a frame 11 pivotally mount
the center of the track, a guide means mounted on each
ed on the vehicle by means of pivot means 12 extending
vehicle for engagement with the adjacent rail whereby
in a direction parallel to the track. The guide frame
each vehicle is guided along the track as it travels adja
carries‘ ?anged wheels 13 which run on the rails of the
cent thereto on the respective wheel means, means for
track 16.
temporarily coupling the guide means at the center of
In the illustrated embodiment, the frame 11 extends
the track, ‘and means for temporarily moving each guide
only to the center of the track where it is coupled to a
‘means out of the space de?ned by the track.
like frame 11’ extending from a like vehicle, not other 35
5. The machine of ‘claim 4, wherein each guide means
wise shown, at the other side of the track. The frame
is a frame extending approximately to the center of the
coupling means 14 may be readily uncoupled when it is
track and carrying wheels adapted to engage the respec
desired to pivot the guide frames upwardly and out of
tive one of said rails.
the space defined by the track 16. The illustrated pivot
6. A machine for treating ballast supporting at least
ing means is a hydraulic cylinder mechanism 115 which 40 one railroad track including two elongated rails and tie
is linked by pins 15’ and ‘15” to the vehicle 1 and the
means‘transversely connecting said rails, comprising a
frame 11, respectively, and enables the frame to assume
pair of vehicles, each having wheel means for travel later
a vertical position at the side of the tractor and out of
ally adjacent a respective rail "of the track, a ballast treat
the way of passing trains.
ing implement supported on each vehicle and extending
The ballast treating machine operates as follows when 45 substantially horizontally therefrom for positioning in the
a train approaches the working site:
ballast under the track, a vehicle guide means for engage
Operation of the ballast treating means is stopped.
ment with at least one rail of the track whereby the vehi—
The guide frame is upwardly pivoted to remove it from
lcles ‘are guided along the track as they travel adjacent
the space de?ned by the track. If considered desirable,
thereto on the respective wheel means, and means for
the free side of the tractor may be temporarily supported 50 temporarily moving the guide means out of the space de
by any suitable means. After the train has passed, hy
?ned by the track.
'
draulic mechanism 15 is actuated again to lower the
7. A machine ‘for cleaning ballast supporting a rail
guide frame so that the wheels engage the rail to provide
road track including two elongated rails and tie means
guidance for the onward moving tractor. Ballast treat
transversely connecting said rails, comprising a vehicle
ment is resumed until the next train approaches. ' The 55
having wheel means for travel laterally adjacent the track,
coupling means 14 are so constructed that they may be
means mounted on said vehicle for removing, cleaning
readily connected and disconnected.
and replacing the ballast, said means including a ballast
While one embodiment of the ballast cleaning machine
treating implement supported on the vehicle and extending
has been described and illustrated, it will be clearly un- - ‘
substantially horizontally therefrom for positioning in the
derstood that many modi?cations and variations may 60
ballast under the track, a guide means mounted on the
occur to the skilled in the art, particularly after bene?ting
vehicle for engagement ‘with at least one rail of the track
from the present teaching, without departing from the
whereby the vehicle is guided ‘along the track as it travels
spirit and scope of the invention as de?ned in the ap
adjacent thereto on said wheel means, and means for
pended claims.
temporarily
moving the guide means out of the space de
What we claim is:
._
65 ?ned ‘by the track.
1. A machine for treating ballast supporting ‘a railroad
track including two elongated rails and tie means trans
versely connecting said rails, comprising a vehicle
equipped with wheel means for travel laterally adjacent
the track, a ‘ballast treating implement ‘supported on the 70
vehicle and extending substantially horizontally therefrom
References Cited in the ?le of this patent
UNITED STATES PATENTS
2,449,714
Praytor et al __________ __ Sept. 21, 1948
1,073,510
France _______________ __ Mar. 24, 1954
FOREIGN PATENTS
for positioning in the ballast under the track, ‘a guide
means mounted on the vehicle for engagement with at
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