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Патент USA US2111162

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15, 1938*
- Filed Oct. 5, 1936
3 Sheéts-Sheet 1
g af
arch 15, 1938.
Filed Oct. 5, 1936
5 Sheets-Sheet 2
March 15, 1938.
Filgd oct, 5, 1956
3 Sheets-Sheet 5
2 EE- 5
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Patented Mar. 15, 1938
1 ,
Graham 0. Woodruff, Bronxville, N. Y., assignorl
to. TheL. C. L..C0rporation, a corporation of‘
Applicationloctoberr 5, 1936, Seriali No; 104,095
2_Glaims. (Cl; 212-11)
This invention: relates-to novel; and: improved
means for handling drop-bottomcontainers, such
as drop bottom-containers adapted'for‘ transportation on container» cars, and‘particularly to drop
5 bottom. containers ofxthatv type designed. to be
raised, lowered'andimoved'from pointItopoint-by
scribedrwhichamayrbe 0f:rectangular,.0b10ng rec'
trol‘the actionvof‘the: containen-dropdoorg
tangular; or; other suitable; form. This container
tamer and the other. to control.‘ the (1001's. It
is, however, desirable in- many. kinds. of. work,
15 where single line cranes are‘ employed, as, for.v
exampleinhandling open; hearth furnace com-
modities; to‘ provide a= means‘ whereby all- operations: of raising; lowering» and'moving the containers from: point; to point, and‘ including the20 work of controlling?he actions of thedoors, may’
is. fully‘ open; or. provided with. a ?llingv opening.
at itsktop for; introduction, 0f? the lading, which 10~
openingimay be‘ Closedi 01‘. not by?a Suitable (1001‘.
or doors. The; container is operr at its bottom
for;di'scharg.e-:0f; the-.ladingrandiis providedwvith
hinged dropidoorsr tfon‘holding the-.ladingcon
?ned‘ until? it‘ is desii?ed. to‘ dump‘ it‘ and then 15‘
dumping. thewaimee ChaiHSIOr cables}. are all
tached tOithese doors and-‘pass-upwardly through
guide housings.‘ 4' t0’ the- top' of the? Container,
whelie'their'llpller‘fl‘?e ends are provided With
attaching eyes; 5101: the; like;
At; the corners of; 20
be performed by the Sing1e line; ofrai Sing1e..]jne
thecontainen at its top;are- proyidedliftingxlinks
crane; sucttas. a. Gantry‘dmm cram, commonly
used' as. part of.‘ the. equipment in. many Open
6: In the-respects noted the-container; may ac
cord: in.-;construction. with that disclosed in‘. my.
hearth fumaceplantg
copending application for patent Serial No..
One object‘ of‘ my. invention is to provide a
23,742, ?lediJll-ne 2'17, 1935,1017 beeofzany equivalent‘. 25‘
handling‘ means. for use: in connection, with a.
single: line.- crane and a- drop . d001- type: of lift
or; suit-able construction; The; housings 4 may
be arranged; either on~therinside of the-container
container whereby all the operations speci?ed
may‘ beperfonned by manipulation of the single;
01‘! 011' the?utsid'e aSIJShOWH
‘I. designates an overhead. traveling crane; of .
30‘ line of ‘ such‘ a- crane.
Another object ofthetinventionisto provid‘eya.
handling means of the'characterj set‘ forth which’
is of simple construction and may be usediin connection- with a lift type container of‘ general
35- Service type without modi?cation of the com
tamer Structure per-se_
with these and othernobjects in View, the invention consists‘of the features of’ construction,
combination and arrangement of’ parts, herein40 after: fully described and claimed, referenoervbeing had to the- accompanying drawings, in
Fig; 1 is a view in end‘elevation of‘a- container
ings', l' designates‘ai» container- Of the type- der
the action. of: a: cranewhich also serves to‘conThe ~means ordinarily, employed‘ in- connection
1-0 with, craneimechanisms, far-handling such: 0011tainersrin a satisfactory. manner requires-the use
ofidouble lines,‘lbweythe con-
connection: with? which; my: improved; handling
means may: be employed.
Fig. 5, israa view. partly in section-and partlyin
side elevation of the; container shown; inzFig- 4‘;
Referringnow more: particularly‘ 130 the draw: 5
the: general type described, that. is, onehaving a. 30.
single, suspending and control line 8 controlled‘
in Operation‘- by‘the-cl‘ane line Winding- and 1111.
Winding“- mechanism- This line depends‘. from.
and ismovable; with the crane; carriage mount
ed, on, the; traveling ‘crane; bridge, and means, in.
accordancewith my; invention, are provided: for‘
raising and lowering the container, moving the
Suspended. Container: from‘ Point: to point,’ and
controlling. the; action. of". the. drop: doors of the
container: from‘ this/"1mm '
This; means; comprises a sling‘ for controlling
the) drop door operating‘ chains or cables 3, and.
for raising; lowering». and. shifting the container,
held‘ Suspended by‘ my‘lmproved' han'dlmg' means
from a’ Smgle lme' crane m Posmon for transport"
thereby to or f,r°m'a cc’malP-er can-a’ contamer
and a‘ sling~~for,= supporting the: container when in
dumping position. The ?rstamentionedzsling; as: 45:
shown, is in theiormoffa spreader bar, 9 which is
fastenedto'theg crane line=8 and from: which de
carf’f ctmelttmnaltytm bemg-?hown'
pe-ndlin-es- lllprovidedlatz theirlower or_ free ends
Fig. of the-suspended con5 0 tainer and. coactingpartsof thehandlin-g. means
shown" in_ Fig- 1~
Eig- 3v 1s-an.end~.e1evat1on. of; the container as
lowered by the crane to dumping position.
Fig. 4 is a view partly ‘insection: and. partly. inv
55 _ endzeleyation; of; a; construction of; container in'
With>sa|>fety‘ latchihooksi | l. for. engagementwith.
the‘ eyes.v 5. ofrthe door operating cables 3“ The 50
container.- supporting. sling, as- shown, comprises
a spreader bar or plate:v I12‘. connected. with the.
crane carriage by. dead lines. l3; and- carrying'a:
safety, latchhook l4~fo1:,connection;.to- the/eye. I5:
of; a conventional; type: four-branch cable sling: 5'51
I6, the lower or free ends of which are provided
with safety hooks I‘! for engagement with the
the lading resting therein. The doors will thus
be allowed to open for the discharge of the lad
lifting links 6 at the corners of the container.
The lines l3 are of such length as to act as 2. lim
ing as shown in Fig. 3. On the discharge of the
lading, the line 8 and the cables 3 are again
drawn upward, closing the doors, and resulting in
itation means to limit the lowering of the con
tainer with respect to the level of the crane and an upward movement of the container after the
drop doors have closed. This upward movement
to the ground or floor line and to stop the down
of the line 8 is continued until the container is
ward movement of the container at and to pre
vent it from descending'below a predetermined raised to transport position, during which the
10 dumping level. The lines 3 and 8 are not so lim 7 cables l3 and I6 are restored to an inactive and 10
ited in their downward movement, however, and slack condition and the support of the container
through their action the opening and closing again fully transferred to line 8 and cables 3 so
movements of the doors may be effected when that the empty container may be transported
back to the container car from which it has been
the container is in dumping position.
removed or to another container car or other
The operation is as follows:
Assuming that a material for use in an open point Where it may be loaded, if desired, with a
commodity which is to be shipped from the plant.
hearth furnace plant has been shipped in con
From the foregoing description, taken in con
tainers of the character described placed in a '
container car, such a car, indicated at l8, being nection with the drawings, the construction and
mode of operation of my improved means for the
20 shown in Fig. 1, it will be understood that when
crane handling of drop bottom containers will
the loaded containers are placed on the car and
rested on the floor thereof the weight of each be readily understood, and it will be seen that
container serves to hold its drop doors, which the invention provides a simple, reliable and ef?
cient means whereby a container may be raised,
lie in contact with the car ?oor, in closed condi
lowered and transported and its doors controlled
25 tion against escape of its lading, without the use
of fastening means for holding the doors in such in operation by the single draft line of a single
line crane, such as one of the character referred
condition. Releasable fastening means for hold
ing the doors closed may, however, be employed. to, allowing ready handling of such containers
Assuming also that the individual containers are in establishments equipped with such cranes
30 to be removed from the car and transported to without changing the construction of the con 30
tainer, which may also be handled in the ordi
some certain point or to different points in the
plant and dumped, the crane l is employed for nary way by two line cranes. While the con
this purpose. To this end the crane 1 with the struction of the means shown herein by way of
slings applied thereto is brought into position exemp-li?cation for carrying the invention into
practical effect is preferred, it is of course to be
35 so that the hooks of the slings may be engaged
with the eyes of the door operating cables and understood that changes in the form, construc
lifting links of one of the containers, the crane tion and arrangement of the parts may be made
line 8 being suitably lowered to allow this to be within the scope of the appended claims, without
done, the dead lines being of sunicient length to departing from the spirit or sacri?cing any of
40 permit the engagement of the safety hooks with the advantages of the invention.
What I claim is:—
the container lifting links 6. ‘The crane line 8 is
1. Hoisting means for use with a traveling
then raised to lift the engaged container from
the car I8. In this operation of lifting the con
tainer to the necessary height to clear the car
crane carriage having a single draft line, and a
container having a body provided with lifting
raise the container to transport level,
the sling lines In connected with the spreader
links at the corners thereof, a drop bottom and
bar 9 on the initial part of the upward move
ment of line 8 will draw upon the cables In to
said hoisting means comprising a sling consist
ing of a spreader, ?exible dead lines connecting
said spreader on opposite sides of its center with
the frame of the crane carriage, and sustaining 50
45 and
draw the cables 3 taut, thus holding the doors 2
50 closed against the weight and escape of the lad
operating lines connected with said drop bottom,
ing and forming therethrough a lifting connec
tion between the line 8 and the container I,
whereby as the upward movement of the line 8
continues the container will be lifted from the
55 car to the elevated transport position shown by
the suspended container in Fig. 1. This upward
movement of the line 8 results in the slacking of
lines connecting said spreader with the lifting
links of the container, said dead and sustaining
lines being of ?xed length rendered taut when the
container is lowered to dumping position to sup
port the container and to be slackened when the
container is raised above such position to a
the cables l3 and i6 which are inactive for con
tainer suspending purposes so long as the con
60 tainer is suspended from the crane by the line
ineffective to support the container, and a sec
8 at this transport level. The suspended con
tainer may then be transported by the crane l
to the point at which the lading is to be dumped,
for example at a point for use in proximity to
65 an open hearth furnace front, as shown in Fig. 3.
To effect the dumping of the lading the line 8
is then lowered to a level at which the limita
tion cables or dead lines l3 and the sling cables
I'S are straightened out or rendered taut, where
70 by the support of the container is transferred
to these cables, thus holding the container from
further downward movement so that under a
continued downward movement of the line 8 the
cables 3 will be free for downward movement in
75 their housings under the weight of the doors and
higher transport position and thereby rendered
ond sling comprising a spreader arranged at right
angles to the ?rst-named spreader and con 60
nected with the draft line, and ?exible lines con
necting said spreader with the drop door operat
ing lines of the container for raising and lower
ing the container between such dumping posi
tion and higher transport position and operating 65
the drop doors when the container is supported
in dumping position by the ?rst-named sling.
2. Hoisting means for use with a traveling
crane bridge, a traveling crane carriage thereon
having a single draft line, and a container hav
ing a body, lifting links at the corners of said
body, a drop bottom, and'operating lines con
nected at their lower ends with said drop bot
tom and provided at their upper ends with cou
pling eyes, said hoisting means comprising a
sling consisting of a spreader of inverted trian
gular form, ?exible dead lines connecting said
spreader on opposite sides of its center with the
frame of the crane carriage, sustaining lines con
nected with the lifting links of the container, and
a two-part detachable link connection between
by rendered ine?ective to support the container,
said sustaining line and the vertex portion of
said spreader, said dead and sustaining lines be
lowering the container between said dumping po
sition and higher transport position and operat
ing of ?xed length so as to be rendered taut
10 when the container is lowered to dumping po
ing the drop‘ doors when the container is sup
sition to support the container and to be slack
ened when the container is raised above such po
sition to a higher transport position and. there
and a second sling comprising a spreader ar
ranged at right angles to the ?rst~named spread
er and connected with the draft line, and ?ex
ible lines connecting said spreader with the eyes
of the drop- door operating lines for raising and
ported in dumping position by the ?rst-named 10
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