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Патент USA US3051334

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Aug. 28, 1962
F. POHL
3,051 ,324
WHIPPING CRANE
Filed June 5, 1959
INVENTORQ
FRIEDRICH
POHL
United States Patent O?ice
3,051,324
Patented Aug. 28, 1962
2
1
shortest length to the greatest length, the same crane con
3,051,324
WHIPPING CRANE
Friedrich Poh], Hamburg, Germany, assignor, by mesne
assignments, to Atlas Werke A.G., Bremen, Germany
Filed June 5, 1959, Ser. No. 818,418
Claims priority, application Germany June 6, 1958
Claims. (Cl. 212-35)
The present invention relates to whipping cranes, and
is particularly concerned with an improved column struc
struction is retained as well as the same size of the crane
column.
The arrangement according to the present invention
brings about a considerable technical advance inasmuch
as for cranes of one and the same general construction
with differently long overhang beams a single and only a
single size of the crane column will be required.
A further advantage brought about by the present in
vention consists in that the crane column can be kept rela
ture for whipping cranes, which permits the employment
of overhang beams of dilferent lengths, while the load path
of loads carried by the crane remains generally horizontal
and within reasonable height limits.
tively low, which is of particular advantage in connection
provide for different degrees of overhang of the beam,
mum.
with shipping cranes, the main ?eld of employment of the
subject matter of the present invention, so that the inter
ference of this type of crane with adjacent parts of the
In the use of whipping cranes, it becomes necessary to 15 ship or the traffic on the ship will be reduced to a mini
and, heretofore, this has been accomplished by providing
In further development of the present invention, a plu
rality of connecting or bearing points at different levels
different crane structures. This makes it an expensive
are provided for the elevating cylinder piston systems con
matter to provide cranes for various installations and
limits each individual crane to a certain scope of work. 20 trolling the hydraulic elevation of the overhang beam.
With a short beam, for example, the load could be con
veyed only a certain distance, whereas, with long beams,
the crane would project to an excessive height when
operating over short distances.
Such an arrangement makes it possible in each instance
to maintain a certain distance of the cylinder connection
with the crane column from the connecting or hearing
point of the overhang beam on the crane column so that
The present invention deals with this problem by pro 25 always the same cylinder construction or cylinder size
can be employed.
viding a special column structure for whipping cranes
adapted for receiving a plurality of overhang beams of
different length. Thus, with a standard column, a plu
rality of different crane structures can be erected, or a
single crane structure can be provided with extra over
hang beams to vary the jog scope of the crane.
It is, therefore, an object of the present invention to
provide a whipping crane with overhang beam, which will
In further development of the present invention, the
crane column is provided with an upwardly extending
bearing plate or bar for the connecting points or bearings
and connecting means such as pivots at various levels for
the above mentioned cylinder piston system and the over
hang beam.
Referring now to the drawings in detail, the crane shown
therein represents a ship whipping crane with hydraulic
It is another object of this invention to provide a whip 35 drive and horizontal load path. The crane comprises a
crane column 1 carrying at the head thereof guide pulleys
ping crane with overhang beam, which will permit the
overcome the above mentioned drawbacks.
employment of various lengths of overhang beams with
out requiring any structural changes in the rest of the
more comprises an overhang beam 4 (FIG. 1) or 5 (FIG.
crane.
2). The overhang beam comprises two arms (one only
or sheaves 2. for the rope or cable 3. The crane further
It is also an object of this invention to provide a whip 40 being shown) which form an acute angle with each other.
One end of each arm is pivotally connected to crane col
ping crane of the type set forth in the preceding para
graphs, in which the employment of overhang beams of
umn 1, whereas the other ends of said arms at the apex
dilferent lengths can be taken care of by merely exchang
of the angle formed thereby carry the top pulleys or
ing the overhang beams, whereas the remaining structural
sheaves 6 for the rope or cable.
elements of the crane remain unchanged, and in particular 45
the same crane column of the same height can be em
As will be seen from FIG. 1, the overhang beam 4 has
a length 11, whereas the overhang beam 5 in FIG. 2 has a
ployed.
length l2. These lengths correspond to the different lengths
of the overhang of the cranes of FIGS. 1 and 2 respec
These and other objects and advantages of the inven
tively. It is only in this respect that the structural parts
tion will appear more clearly from the following speci?ca
tion in connection with the accompanying drawings, in 50 of the two ?gures differ from each other. In all other
structural respects the cranes are alike which means they
which:
FIG. 1 is a diagrammatic side view of a whipping crane
also have a crane column 1 of the same size and construc
tion. The level at which the bearings 7 and 8 for the over
according to the present invention.
hang beams are arranged on the crane column 1 corre
FIG. 2 diagrammatically illustrates the whipping crane
of FIG. 1 but with an overhang beam of diiferent length.
55 sponds to the different lengths l1 and 12. The bearing 8 is
located at a lower level than the bearing 7 to such an ex
FIG. 3 illustrates a portion of the crane of FIG. 1 but
tent that the heights hl and hz up to the respective head
on a scale larger than that of FIG. 1.
pulleys 2 in both instances are proportional to the lengths
The arrangement according to the present invention is
l1 and I2 of the respective overhang beam pertaining
characterized primarily in that the crane column is pro
vided with a plurality of connecting points for journalling 60 thereto to the extent that the obtainment of a horizontal
load path will be assured during the whipping opera
the overhang beam at diiferent heights. Of these con
tion. In other words, the respective conditions may be
necting points or bearings, each time that connecting
expressed by the proportional equation h1:l1=h2:l2.
point or bearing is selected which is spaced from the guide
As has been clearly shown in FIGS. 1 and 2, also the
pulleys or sheaves at the crane column head by a distance
which corresponds to the respective length of the over 65 bearing or supporting means 11 for the hydraulic cylinder
hang beam so that the said length will be proportional to
said distance to such an extent that the horizontal load
9 in FIG. 2 are located at a lower level than the bearing
or supporting means 10 in FIG. 1, namely to such an ex
tent that the distance of said hearing or supporting means
from the hearing or supporting means 7 and 8 respectively
beam at the crane column will be selected the lower the 70 will be the same in both instances.
path will be assured during the whipping movements of
the crane. Thus, the connecting point of the overhang
greater the length of the overhang beam. However, within
the range of the customary overhang beams from the
FIG. 3 illustrates by way of example the arrangement
of the bearings ‘T and 8 and 10 and 11 at different heights
3,051,324
3
4
on the crane column. As will be seen from FIG. 3, the
column is provided with two upwardly extending plates
or bars 12 respectively arranged on opposite sides of the
means and said other pulley means and including a
portion dependent at the outer end of the beam to sup
port a load.
column for the bearing of those two ends of the arms of
the overhang beam which are pivotally connected to the
column. The pivots 13 for the overhang ‘beam 4 or 5 may
3. An arrangement according to claim 2, in which the
spacing between the additional bearing means substan
tially equals the spacing between the corresponding ones
be respectively journalled in the bearings 7 or 8. The
of ?rst mentioned means.
connection itself may be effected in any standard man
4. In a crane column structure for a whipping crane:
ner. The bearings may be inserted into the column and
a vertical crane column, guide pulley means carried by
welded thereto or may be connected in any other suitable 10 the upper end of said crane column, ?rst vertical bearing
way to the column.
plate means ?rmly connected to said column toward the
The column is furthermore provided with metal strips
lower end thereof and provided with a plurality of bear
or bars 14 arranged on opposite sides of the column for re
ing means respectively arranged at predetermined dif
ceiving the bearings for the cylinders 9 which in their
ferent levels of said crane column with respect to said
turn carry pivots 15 to be connected to said bearings. 15 guide pulley means for journalling one end of an over
hang beam with which said crane is to be equipped, and
Also in this instance, a plurality of bearings at di?erent
heights are provided so that the pivot connection of the
second vertical beaning plate means ?rmly connected to
cylinders 9 may be effected accordingly.
said column toward the upper end thereof and provided
with additional bearing means respectively arranged at
It is, of course, to be understood that the present inven
tion is, by no means, limited to the particular construction 20 predetermined different levels of said column with respect
to corresponding bearing means of said ?rst bearing plate
shown in the drawings but also comprises any modi?ca
for journalling one end of an actuating cylinder piston
tions within the scope of the appended claims.
What I claim is:
means with which said crane is to be equipped, said
actuating cylinder piston means at the other end pivotally
1. In a crane column structure for a whipping crane:
a crane column, guide pulley means carried by the upper 25 engaging the respective beam carried by the column,
pulley means carried by the outer end of the beam, and
end of said crane column, an overhang beam pivoted at
a load cable passing over said guide pulley means and
one end to the column, and a plurality of bearing means
respectively arranged at predetermined different levels
of and supported by said column toward the bottom there
said other pulley means and including a portion depend
corresponding to the length of the respective overhang
over the pulley means mounted on the outer end of an
ent at the outer end of the beam to support a load.
5. In a crane column structure for whipping cranes: a
of for journalling the said one end of the respective over 30
crane column, said crane column on its upper end having
hang beam with which said crane is to be equipped, the
guide pulley means for receiving a load cable passing
distances of said bearing means from said pulley means
overhang beam, ?rst bearing means on the column toward
beam to be journaled in the said respective bearing means,
other pulley means carried by the outer end of the beam, 35 the lower end thereof for pivotally receiving the inner
end of said beam, the respective distance of said ?rst hear
a load cable passing over said guide pulley means and
ing means from said guide pulley means being variable
said other pulley means and including a portion dependent
and bearing a predetermined relation to the length of v
at the outer end of the beam to support a load, and other
the respective overhang beam to be journalled in said
bearing means arranged at predetermined different levels
of and supported by said column toward the top thereof 40 ?rst bearing means, second bearing means on the column
toward the upper end thereof for pivotally receiving one
for pivotally receiving one end of an actuating piston
end of a piston-cylinder means which has its other end
cylinder means having its other end pivoted to the respec
pivotally connected to the respective beam mounted on
tive beam carried by said column.
the columns, the distance of said second bearing means
2. In a crane column structure for a whipping crane: a
crane column, guide pulley means carried by the upper 45 from said ?rst bearing means being variable in accord
ance with the respective beam mounted on the column.
end of said crane column, an overhang beam pivoted at
6. A crane column structure for whipping cranes ac
one end to the column, a plurality of bearing means re
spectively arranged at predetermined different levels of
and supported by said column for journalling said one end
of the respective overhang beam with which said crane is
to be equipped, the distances of said bearing means from
said pulley means corresponding to the length of the re
spective overhang beam to be journalled in said bearing
cording to claim 5, in which said ?rst bearing means com
prises a plurality of individual bearings arranged at re
50 spectively different levels on said crane column.
References Cited in the ?le of this patent
UNITED STATES PATENTS
means, and a plurality of additional bearing means re
spectively arranged at predetermined different levels from 55
and above said ?rst mentioned bearing means for jour
nalling one end of an actuating cylinder piston means
which said crane is to be equipped, said actuating cylin
der piston means at the other end pivotally engaging
said beam, other pulley means carried by the outer end of 60
the beam, and a load cable passing over said guide pulley
1,368,157
Jardine _______________ __ Feb. 8, 1921
1,961,541
Adams ______________ _.. June 5, 1934
2,397,271
2,675,209
2,774,483
2,804,979
2,807,374
Ladwig _____________ __ Mar. 26,
Freed _______________ __ Apr. 13,
Raymond ____________ .... Dec. 18,
Lassiter _____________ .._ Sept. 3,
McLean ____________ __ Sept. 24,
2,890,043
Bruns ____ .._. _________ .._ June 9, 1959
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