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Патент USA US2404602

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July 23,1946.
, \
. H_ F_ STOFFLET
2,404,602,
Filed May 29, 1944
3 Sheets-Sheet l (
' July 23, 1946‘.
H_'.:, STOFFLET
I'NG'OT HOOK
Filed May 29, 1944
‘ 2,404,602
5 Sheets-Sheet 2
21mm ‘
‘M1461 @
July 23, 1946. _
2,404,602
H. F. STO‘FFLEQIT
v INGOT HOOK
Filed May 29, 1944-
3 Sheets-Sheet 3
‘7 J1 vZ5 1?
21
id
.
Eat? 9.
,
3mm;
‘
56k
Patented July 23, 1946
2,404,002 ;
UNITED‘ "STATES PATENT;'QFIFIC'E.
V
v
,
2,404,002
;
_
INGOT HOOK
.
,
_
Harry F. Stof?et, Allentown, Pa'., assignor to Beth- ,_
lehem Steel Company,acorporationof'Pennsyl-
-
vania '
Application ,May29, 1044, sénjarnassmsu
2 Claimsf (01. 294-67) _
1"
My invention relates. in general to apparatus ' Y ' Fig.1 is a side elevation ‘of my invention in
for manipulating large cylindrical-bodies, and
lifting positionv as'employed with a turning rig; > ,
more particularly/co a device for quickly lifting,
. ‘Fig. 3] is a side‘ elevation‘ showing the approach‘ ,
and conveying tremendously heavy metal ingots
which have been heated to veryyhigh tempera
tures.
"
'
'
position‘o'f myinvention;
lifting
'
The production of ‘modern ‘heavy ordnance,‘
such as big naval guns and the like, necessitates
the handling and forging of steel ingots heated
.
'
‘
_
, Fig. 4 is an ‘end elevationof my inventionin
position;
'
‘
‘
"
'
"
‘
Fig. _5,is a vertical section taken alongl‘thej line :
5‘——‘5i'0f Fig-16;
j
..
..
.
.
._
...
,
-
.
Fig.‘ 6 is' a top ‘plan view 'of the, invention, ,f :'
Fig. 7 is a vertical section taken along ‘the‘lin'e
1—1 of Fig. 5;
of these ingots may be as large as 87 inches in
Fig. 8 is a vertical section taken along the line
diameter, and may weigh as much as 300,000
8-8 of Fig. 5; and
pounds.
Fig. 9 is a section on the line 9-9 of Fig. 5.
Such ingots are customarily heated inlarge 15
Referring further to the drawings, and particu
carbottom furnaces to proper forging tempera
larly to Figs. 1 to 4, inclusive, the numeral l indi- '
ture, then while hot chains are attached and the ,
cates the hot ingot, which may be corrugated or
ingot removed by an overhead bridge crane or
?uted as in Fig. 1, or having a smooth cylindrical
the like to a hydraulic press for forging.
surface as in Figs. 2 to 4, resting on the brick
to 2000° F. or more of dimensions which might
be considered extraordinary in peacetime.
Some
During the heating operation, the ingot is sup
20 work 2 on the car platform 3.
'
ported at both ends by brick blocking on the car
Suspended from the crane turning rig or turn
platform. To attach the crane chains the ingot
over mechanism 4 of Fig. 2 by the chain or cable
must be swung around to enable the chains to
5, pivotally attached by the pins 6 to the spaced
pass the ?rst block on the car, inevitably dam;
slotted lug blocks 1 and 8, is my hook tong 9.
aging the brick work and eventually the car 25 As shownin more detail in Figs. 5 to 9, inclusive,
itself, and requiring the setting up of outside
the said hook tong 9 is fabricated of very heavy
supports for the swung-out end. This takes a
J-shaped welded steel plates, the pair of spaced
good deal of the time of the floor gang and delays
parallel side plates l0 and II comprising a sub
the movement of ingots from the furnace to the
stantially straight horizontal balance arm por
press, with much loss of heat resulting.
30 tion l2, with a counterweight box l3 at the free,
Tongs with conventional scissors action when
end thereof and a dependent curved hook por
tried in place of chains have been found to be
tion l4 terminating in an upturned relatively nar
of dangerously uncertain grip and to wear out
row tapered nose tip l5 which may be covered
their pins and catch devices too quickly under ' with Stellite or the like to increase its resistance
vthe strenuous conditions of ordinary operation.
35 to extremes of weight and temperature. The side
One object of my invention, therefore, is a
plates I0 and H are held in properly spaced
device for handling quickly and safely any very
welded relation by the lug blocks 1 and 8, by the
large object of generally cylindrical shape.
Another object is a device which will lessen the
wear and tear on furnace cars in manipulating
heavy ingots.
diaphragm plates l6, 11, I8, I9, 20, 2|, 22 and 23,
the plates I6, 20, 2| and 23 being perforated for
cooling, and by the plates 24, 25 and 26 forming
the counterweight box l3.
Still another object is a simple sturdy tong with
In operation, the counterweight box 13 of the
a minimum of parts exposed to breakage or shear
unloaded hook tong 9 is ?rst ?lled with steel
under severe operating conditions.
scrap or the like to about the level of the waved
Other objects and purposes of my invention will 45 line of Fig. 5, or until the‘balance arm portion 1 2
appear hereinafter in the speci?cation and in the
stays horizontal without load. On account of
appended claims.
.
Having thus described the'purposes and ad
vantages of my invention, I shall now in order
to make the same more clear refer to the annexed
three sheets of drawings forming a part of this
speci?cation and in which like characters of ref
erence indicate like parts:
Figure 1. is a perspective view of my invention
the restricted height of the brick blocking 2, the
hook tong, 0 has to approach the ingot I in this
horizontal position, which it takes automatically
through its dead weight. The tapered nose [5 can
then easily be moved in from the side, asvshown in
Fig. 3. As soon as lifting with the crane starts and
the live load of the ingot l is taken on, the hook
tong 9 will turn automatically into the position
in operative position lifting a fluted round ingot; 55 shown in Fig. 2, due to the combination of the
£404,602
3
'4
1
1. A_ lifting device for handling heavy cylin
centers of gravity of the ingot l and the hook
tong 9, the turning rig 4 thus acting as a simple
pulley, though capable of elevating either end if
desired. _ Throughout this movement the ingot l
is supported safely against rolling o? by the up
turned nose 'I 5.
drical bodies such as large ingots or the like,
comprising a hook fabricated of a pair of
J-shaped plates held in spaced relation by dia
phragm plates welded therebetween, one end of
the shank of the hook carrying a counterbalance
'
The hook tong 9hthus handles'ingots quickly1
and'the other end curved downward and inward
for the load-supporting‘portion, lugv blocks slotted
and e?icientlyi Itis wide enough'to permit the
on their upper faces and welded between ‘the side
-_ plates in the shank of the hook, an overhead
conveying and turning rig having a sheave, a
?exible link chain over the sheave, and pivot-pins
attaching the link chain to the lug blocks.
7 27. A hook for carrying heavy ingots or the like,
comprising a pair of J-shaped side plate members
balance point to be easily and quickly established, ‘
and'use on the job has shown that there is no;v
di?iculty in catching the ingot under its point of
gravity-and balancing it lengthwise.
By this means the time required for handling a
the ingot has been reduced toaboutone sixth the .,
time formerly taken, the brick blocking on the car
'
"
has been preserved for reuse, andthe expense of _ , ,,
of substantial width and thickness, a plurality of
frequently replacing worn and broken‘ chains of
-
diaphragm plates welded between said side mem
great size has been eliminated.
' '
»'
s
V. =
' Although I have hereinabove described‘ my
in!
bers and maintaining said side members in par
_ allel spaced relation, the curved end of the book
vention in considerable; detail, I do not wish ‘to 20 being. turneddownwardly and inwardlyto form
the , load-engaging, portion, "counterweight means
on the shank end of the ‘hook, a pair of lug blocks
I havenshown.and'described, but Imayuse also
welded between the ,side members. in longitudi
such substitutions, modi?cations-or equivalents
‘ . be‘ limited to the'exactv and speci?c details which,
as». are embraced ‘within the scope and spirit of _ nallyjspaced relation intermediate the ends of the
the invention or pointed out in. the irappen‘ded 1 25 hook, and overhead conveying and turning means
'claims.~-..‘
~l
o
,_
,
pivotally attached to said lug blocks. i
Having" thus described my inventionywhat
., -. >
I:
claim as new and useful andjdesireto secure by‘
' .
‘HARRY F. s'roFmQET.
,7
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