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Патент USA US3024335

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March 6, 1962
3,024,325
G. WANINGER
CABLE FEEDING ARRANGEMENT
Original Filed Dec. 30, 1955
INVENTOR. ’
BY
c/{éerf' ?/am'njer
United States Patent 0
3,024,325
Patented Mar. 6, 1962
1
3,024,325
_
CABLE FEEDING ARRANGEMENT
Gilbert Waninger, Ettlingen, Germany, assignor to Kabel
. _schlepp G.m.b.H., Siegen, Westphalia, Germany
Original application Dec. 30, 1955, Ser. No. 556,604.
gig/I553 and this application Nov. 29, 1957, Ser. No.
Claims priority, application Germany Jan. 5, 1955
2 Claims. (Cl. 191-12)
The present invention relates to an electric cable feed
ing arrangement for feeding current to movable consum
ers, for instance to cranes and the like. For this pur
2
reel trailer. When the movable consumer is displaced,
through one of these pulling means the entire cable reel
trailer is trailed at half the speed, i.e. over half the dis
tance of the movement of said movable consumer.
Dur
ing this movement, the other pulling means is deposited
by its deviating roller upon the respective depositing
surface. Thus, the cable reel moves over half the dis
tance over which the movable consumer is being moved.
The total distance over which the cable reel trailer moves
10 is therefore in the most unfavorable instance by the
diameter of the supporting roller greater than the maxi
mum distance over which the movable consumer moves.
In order to relieve the cable of pulling forces support
ing and holding means are provided in which each cable
however, cannot be used in many instances so that the 15 is inserted and which serve as guiding rail.
current has to be fed through a cable one end of which
In order to guide properly the cable reel trailer over
is anchored or held stationary while the other end of
a longer distance, according to a further development of
the cable is connected to the crane. To this end, cable
the invention, an additional guiding channel can be pro
pose, sliding contact lines have been employed which,
reels are employed which, however, require special servic~
ing.
If the movement of the crane is limited to a cer
tain path or distance, also trailing cables are employed
one end of which is connected to the end of the respec
tive track while the other end is connected to the crane.
vided which serves at the same time as securing channel
for the operator.
Structural Arrangement
Referring now to the drawings in detail, the arrange
The intermediate portions of such trailing cables are
ment shown therein comprises a cable 2 which from a
suspended on cable reel trailers. Such arrangements have 25 stationary connecting point 1 passes over the end or
the drawback that there is considerable friction between
deviating roller 3a to the displaceable consumer 4 for
the cable and the supporting rollers or the like so that
instance a crane. From the same stationary connecting
an undue Wear of the cable is unadvoidable. Further
point 1, a further cable 6 is passed in opposite direction
more, the known arrangements require rails or special
around the other end or deviating roller 3b and over
tracks on which the track rollers or wheels are running. 30 an intermediate supporting roller 3 to the displaceable
This application is a division of my copending ap~
consumer 4. The rollers 3a and 3b as well as the rollers
plication Serial No. 556,604, ?led December 30, 1955,
3
of which any desired number may be employed are
now abandoned.
It is an object of the present invention to provide a
coupled to each other through a connecting rod system
5 in spaced arrangement in such a way that the passage
cable feeding arrangement for the above mentioned pur 35 of the cables 2 and 6 resting on the supporting rollers
poses which will overcome the drawbacks set forth above.
will be properly con?ned. By means of the spanner or
It is another object of this invention to provide a cable
turnbuckle 7 arranged in said connecting rod system 5,
feeding arrangement in which the cable need not rotate
the rollers are spaced so that the two cables 2 and 6
the supporting rollers or the like so that the wear of the
will with a certain play or without play rest around the
cable is considerably reduced.
40 cable reel trailer 8 which comprises the intermediate
It is another object of this invention to provide a
rollers 3, the end rollers 3a and 3b, the connecting rod
cable feeding arrangement in which the cable will be
system 5, and the spanner or turnbuckle 7.
completely relieved of pulling forces.
When the displaceable consumer 4 moves along a
These and other objects and advantages of the inven
straight line, for instance toward the right, the entire
tion will appear more clearly from the following speci
cable reel trailer will by means of the left cable 2 move
?cation in connection with the accompanying drawings, 45 at half the speed of movement of said consumer 4 so
in which:
FIGURE 1 is a section of a cable feeding arrangement
that it will move over half the way over which the con
sumer 4 moves. During this movement, the cable 6
will pass around and under end roller 3b onto the sur
50 face 9. The cable will move correspondingly in the re
line II—-II of FIG. 1.
verse direction when the displaceable consumer 4 moves
FIGURE 3 is a diagrammatic section according to that
toward the left.
oflFlG. 2 with an additional guiding and securing chan
For the purpose to relieve the cables from pulling
ne.
according to the invention.
FIGURE 2 is a diagrammatic section taken along the
stress, the cables are inserted in and carried by ?exible
General Arrangement
55 cable guide means 14a and 14b which absorb the entire
The deviating and supporting rollers for the cable with
pulling force. These guide means are looped around the
the additional pulling means have the same diameter as
the runners or track wheels of the cable reel trailer.
end rollers 30, 3b and supported by the supporting rollers
3. The lower strand of the guide means 14a, 14b, being
Such an arrangement brings about that the cable does
deposited on the surface 9, serves as guiding rail as shown
not have to rotate the supporting rollers or the like so 60 best in FIGS. 2 and 3.
that practically no wear of the cable will occur inasmuch
In order to guide the cable reel trailer properly over
as the cable will have the same speed as the deviating
a longer distance an additional channel consisting of two
and supporting rollers associated therewith. The prac
lateral parts 15a, 15b can be provided. This channel
tical design of such cable feed may vary according to
protects at the same time the operator during the dis
the desired requirements. Thus, for instance, the de 65 placement of the trailer.
viating and supporting rollers may at the same time form
It is, of course, understood that the present invention
the runners for the cable reel trailers so that a very
is, by no means, limited to the particular construction
simple construction will be obtained. Advantageously,
shown in the drawings but also comprises any modi?ca
two cables with their additional pulling means are em
tions within the scope of the appended claims.
ployed which from a common stationary connecting point 70 What I claim is:
_
are in opposite direction with regard to each other passed
over the two deviating rollers at the ends of tthe cable
1. In an electric cable feeding arrangement for feed
ing current to a movable consumer: electric cable means,
3,024,325
3
one end of saidcable means being connected to a ?xed
point and the other end of‘said cable means being con
nected to said movable consumer, a movable trailer pro
vided with a series of spaced apart roller means com
prising track roller means, ?exible guide means sup
ported by said roller means and being looped around the
end rollers of said series of roller means, said cable
means being enclosed within said ?exible guide means
and extending coaxially therewith for at least that part
4
track roller means, ?exible guide means supported by
said roller means and being looped around the end
rollers of said series of roller means, said cable means
being enclosed within said ?exible guide means and ex
tending coaxially therewith for at least that part of said
?exible guide means which passes around one end of
said roller means to relieve said cable of the force for
moving said trailer, said ?exible guide means passing
under said roller means to provide a supporting rail there
of said ?exible- guide means which passes around one 10 for, said movable trailer running in a channel consisting
of two lateral parts.
end of said roller means to relieve said cable of the
force for moving said trailer, said ?exible guide means
passing under said roller means to provide a supporting
rail therefor.
2. In an electric cable feeding arrangement for feeding 15
current to a movable consumer: electric cable means, one
end of said cable means being connected to a ?xed point
and‘the other end of said cable means being connected
to said movable consumer, a movable trailer provided
with a series of spaced apart roller means comprising 20
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,866,681
2,864,907
Taylor ______________ __ July 12, 1932
Waninger ___________ __ Dec. 16, 1958
643,563
Germany ____________ __ Apr. 12, 1957
FOREIGN PATENTS
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