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Патент USA US2122032

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June 2,3, 1938-
'
M. w. GOLDBERG El‘ AL I
2,122,032
COVERED LADLE
Filed June 15, 1936
IIIHH. /d 8 > cum/1mm
1/ 5
M
"
‘
ATTORNEY-é -
Patented June 28, 1938
I 2,122,032
UNITED
Es
PATENT . OFFICE‘.
'; 2,122,032
COVERED VLADLE
’ '
Max wlGoldberg'and Wallace
-
Drissen, ’ r
Port Washington, Wis.
‘ Application June 15, 1936,'Serial No. 85,287
,
(01. 22+-81) '
2 Claims.
Position.‘
~
'
'
"
f
cluding the steps of inserting ?re brick of less
size‘ than the cover adjacent theinner side there
, which hold only a limited quantity of molten
of, and‘?lling the spaces between said-brick and
metal. Necessarily, therefore, these ladles must
cover ?anges withrefractory ‘material of’ differ
_ be frequently re?lled and a large number kept in
constant use'in order 'tohandle moldv require
'
an improved method of lining ?anged covers in
Heretofore, in foundry practice, it has been
customary to utilize relatively small sized ladles
10 ments.
'
A further object of the invention is to provide
plication‘ Serial No. 73,829, ?led April 11,’ 1936'. f
7:5
; I
the ‘brick and cover to-‘further holdthe brick in
This invention relates‘ tov improvements in‘ cov
ered ladles, ‘and is a" continuation in part of ap
I
a
' , ent composition than said brick.
Thus, a relatively large number of at
tendants are needed to take care of the plurality
of small ladles, which results in high overhead.
A still further object of the invention. is to pro-'
10
Vide a method of lining ?anged covers as above
described, including the additional step of taper
It has been impractical heretofore to utilize ladles ~ ing the side‘ edges of the slab of ?re‘ brick so that
of larger size as the large quantity of molten when the refractory material is packed between ‘
15 metal would radiate an excessive amount of heat,
making it impossible for, attendants to remain
near, enough to take care of the pouring opera
tions. Furthermore, inlview of the large capac
ity, the ladles could, not,v be emptied rapidly
2O
enough to prevent solidi?cation therein.
'
In applications Serial Nos. 746,042, 43,146, and
‘73,829 there are disclosedmeans rendering the
employment of large ladles entirely practical
through the use of an insulated protecting cover
v25 ' and through theuse of means forrfacilitating the
opening and closingof said cover. ' The present
invention relates more particularly to the cover
itself and to the manner of insulating'the same.
The vinsulation of the ladle covers has occa
30 sioned considerable difficulty “ heretofore. Fire
position.
'
'
‘
_
With the above and other objects in'view, the
invention consists of the improved covered ladle
and_,_a1l its. parts- and combinations as set forth 20
in the'claims and all equivalents thereof.
In the accompanying drawing illustrating one
complete ‘embodiment of the preferred form of I
the invention;
Fig. ~1 is a plan View of the improved ladle
position of the operating handle showinghow
said handle is used to move the cover, and. the
dot-and-dash line position of ‘thecover' handle
showing how said handle is used to lock the cover 30
in closed position;
a ?re brick is made ofthe exact size of the cover,
it is found that the‘ difference in coe?icient of ex
pansion between the metal forming the cover
the dot-and-dash lines showing the cover in ‘open,
therefor sets up stresses which, result in breakage
of the lining. Furthermore, due to the fact that
these ladles and covers are furnished in a wide
assortment of sizes, it is impractical and costly
to have ?re brick of the exact size and shape for
‘ each of the various sizes of covers.
25
showing the cover in closed position, the full line
brick is a desirable insulating material, but when
35 proper and the ?re brick forming the lining
40
said tapered edges and the ‘cover ?anges, there
will be an interlock to hold the two materials in
'
1
"
_, ,1
Fig. 2 is a side elevational‘ view of thela'dle,
‘ Fig. 3 is a fragmentary sectional view taken 35
on line 3—3 of Fig. 1; and
.
‘ v
V
Fig. 4 is a bottom View of the cover alone. ‘
, Referring more particularly‘ to the drawing,
the muneral 5 designatesv afladle of desired form.
In View of the fact that the ladles comprehended 40
'by the present invention are of relatively; large
size, it is desirable that the same be‘ insulated, '
It is an object of the present invention to pro-- ' preferably in the manner disclosed in co-pending
vide an improved lining of insulating material application, Serial No;47,560. _. I
for ladle covers wherein the majority of the lin
The ladle is preferably formed with an up 45
ing is composed of ?reibrick and wherein other
material is employed around the ?rebrick in
such a way as to readily adapt a slab of ?re brick
of one size for use in lining covers of various
v50
55
sizes, the joint between the ?re brick and other
‘material permitting a normal amount of expan
standing circular rim 6, with agpouring'spout 'l
and with side trunnions 8/ A bail frame 9 in
cludes side bails having hook-shaped, lower ends
II] for engagement with the trunnions 8, and an
50
I2 which are preferably ,
upper transverse bar H. _
Guiding members
sion to take place without disrupting the cover.
A more‘speci?c object of the invention is to
tubular in form, are suitably secured to upper
side portions of the ladle .as at l3 and i4, and said
providein combination a ladle, a metallic cover
therefor having’ depending edge ?anges, insulat—
members are disposed in an inclinedposition vas
is clear from Fig, 2. One of the guiding members ’'
ing brick of less size‘ thanxthe cover positioned
adjacent the inner side thereof, refractory mate
for a purpose to- be’ hereinafter described,
rial of different composition than said brick ?lling
the spaces between said brick and cover ?anges,
and-metallic securing-means extending through
I2 may be provided with a tubular extension l5
,
The ladle cover designated generallyby the nu
meral l6, comprises ‘a top disc of metal ll and a
surrounding depending flangel?z" The front of 60
2.
2,122,032
the cover is preferably straight as at I9, and the
rim I8 is tapered in the front as at 20 so that
an operator standing at the rear of the ladle may
at all times see the spout while pouring is being
accomplished. If the rim portion 20 were ver
tical, it would, in'some positions, obstruct the at
tendant’s View.
,
Welded to opposite sides of the cover toward
are then threaded on to the bolts and tightened
to hold the ?re brick in position. Next ?re clay
or other refractory material is packed while in
plastic condition between the edges of the ?re
brick and the cover rimla's at 34“ and. permitted
to harden‘. Due to‘ the bevel 30 on the ?re brick,
"interlocking will take place between the edges
of‘the ?re brick and the hardened refractory
the rear thereof are lateral extensions .2 I-—,.and- to’ -material 34 to hold the two materials in position.
each ‘of these extensions one end of a rod 22 is After the bolts are in place it is desirable to 10
rigidly secured. The rods normally extend at an ?ll"the' recesses 3|.. with refractory material as
incline corresponding to the incline of the guide at 35. It- is also preferred to weld or otherwise
tubes I2, said rods being slida-ble in the tubes as is I secure a ledge 36 in position below the refrac
clearly indicated in Fig. 2.
15
At the rear of the cover is a short section of
horizontally disposed metal tubing 23,» and a
handle 24 having a projection 25 at its outer end
which may be engaged with the tube 23 in the
manner shown in Fig. 1, facilitates movement of
the cover from the full line position of Fig. 2
to the dot-and-dash line‘position therein and
vice versa. Inasmuch as it is desirable to normal
ly limit the opening movement of the cover, the
tory material 34;
-
The joint formed at 30 between the ?re brick 15
and the ?re clay will permit a normal amount
of expansion to take place in the lining without
disrupting the cover. In addition, it will be noted
that there is clearance between the sides of the
bolt holes. 3|’ and the. bolts to allow for a cer
tain amount of shifting of the ?re brick during
expansion thereof.
With‘ this method of lining, it is apparent that
20
front of the latter is provided with an upstand- ' one size of ?re brick 29 may be readily adapted
ing stop 26 which is engageable with the cross
bar I I of the bail frame, as shown in the dot-and
dash line position in Fig. 2.
It may at certain times be desirable to entirely
remove the cover.
In the present arrangement
30 the parts are so arranged that when. the ladle is
tilted rearwardly the stop 26 will fail to engage
the cross bar II, thereby permitting complete
removal of the cover and complete withdrawal‘ of
the rods 22 from the guiding tubes I2.
35
The cover may also be formed with a project
ing lug 21 having its outer end apertured as at
28. The lug is so positioned on the cover that
when the cover is in the closed position shown
in Figs. 1‘ and'2, the aperture 28 will register with
40 the tubular extension I5 of the guiding member
I2. When the cover is thus closed, the extension
,25 ofv the handle 24 may be inserted into the
aperture 28 and extension I5 to positively lock
the, cover in closed position; thus the handle 24
Li serves the dual purpose of facilitating movement
‘ of the cover and locking thereof.
The insulation of the ladle covers has occa
sioned considerable di?iculty heretofore. Fire
brick is a desirable insulating material, but‘ when
a ?re brick is made of the exact size of the cover;
, it is found that the difference'in coe?icient of
expansion between the metal forming the cover
proper and the ?re brick forming the lining
therefor sets up stresses which result in breakage
of the lining. Furthermore, due to the fact that
these ladles and covers are furnished in a wide
assortment of sizes, it is impractical and costly
to have ?re brick of the exact size and shape for
each of the various sizes of covers.
By referring to Fig. 3, it may be seen that
there is ?re brick 29. inserted in the cover and
that said brick is substantially less. in diameter
than the cover. The ?re brick is also preferably
formed with bevelled side edges 30 and with a
65 plurality of recesses 3I in its lower face, com
60
municating with bores 3|’ extending through the
?re brick.
In order to line a cover in the man
ner disclosed in the present invention, a thin
layer of ?re clay is spread on the upper surface
of the ?re brick 29 and the brick is- pressed
against the inner surface of the cover top H.
Bolts 32 are then-passed through the holes 3I’
in the ?re brick and through registering aper
tures in the cover portion II, the heads of’the
bolts being receivedin the recesses 3|. Nuts 33
for use in various sizes of covers, it being merely 25
necessary to utilize more or less of the refrac
tory material‘34 as an edge ?lling.
It is apparent that the cover and associated
mechanism permits the cover to be readily opened
and closed by manipulation of the handle 24, and 30
that the cover can be further locked in position
through use of the same handle. Due to the
fact that the lower portion 31 of the cover rim
overlaps the rim 6 of the ladle, it is apparent
that a straight rearward sliding movement of the
cover to open the same would‘not function. Due
however‘, to the use of the inclined guiding tubes
I2 and cooperating inclined ‘rods 22, it is appar
ent that the cover is simultaneously raised, so
that the ?ange portions 31 clear the rim 6, while 40
the cover is being moved rearwardly.
Although only‘one form of ,the invention has
been‘ shown and described, it‘. is apparent that
various changes and modi?cations may be made
without departing from‘the spirit of the inven 45
tion, and all of such changes are contemplated
as may come'within the scope of the claims.
What we claim is:
'
1. A metallic ladle cover having depending edge
?anges, insulating brick comprising a single slab 50
of less size than the cover positioned adjacent
the-inner side thereof, refractory material of dif—
ferent composition than said brick ?lling the
spaces between said brick and the cover ?anges,
and a surrounding ledge extending inwardly from 55
the lower portion of the cover ?anges below the
refractory material to maintain the latter in po
sition, the brick being of such size‘ that it can
be inserted from the bottom of‘ the cover not
withstanding said ledge, and means for securing
the brick to the cover.
2. A metallic ladle cover having depending edge
flanges, insulating brick comprising a single slab
of less‘ size than the cover and having tapered
side edges with its smallest surface positioned 65
against the inner side of the cover, hardened
refractory material of different composition than
said brick ?lling-the spaces between the edges of
said brick and the cover ?anges, and means for
securing the brick to the cover whereby the ta 70
pered edges of the brick lock the refractory ma
terial in place.
MAX W. GOLDBERG.
WALLACE W. DRISSEN.
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