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Sept. 24; 1946.
J. .1. CAIN, JR
2,408,916
OPEN HEARTH FURNACE REPAIR UNIT
Filed Jan. 30, 1945
INVENTOR
ATTOR
Y
2,408,016
Patented Sept. 24, 1946.
UNITED STATES PATENT ‘OFFICE
2,408,016
OPEN-HEARTH FURNACE REPAIR
UNIT
John J. Cain, JL, Youngstown, Ohio
Application January 30, 1945, Serial No. 575,289
4 Claims. (Cl. 266-43)
1
2
This invention relates to an open hearth fur
nace repair unit and more particularly to a re
pair unit and a method of utilizing the same.
charging doors thereof and showing the repair
unit and placing means in position therein.
The principal object of the invention is the
provision of a repair unit and method for placing
open hearth furnace and illustrates the repair
unit and the apparatus for placing the same
therein in operative position.
the same in effective position in an open hearth
furnace.
Figure 2 is .a side elevation of a portion of an
Figure 3 is a side elevation of a portion of an
open hearth furnace and illustrates the‘ repair
unit and apparatus for placing the same after
10 having been turned 90 degrees, the repair unit
nace loading means for handling a repair unit.
being pivoted into upright position as a result
‘A still further object of the invention is the
thereof.
provision of a method of repairing the front Wal.‘
A further ‘object of the invention is the pro
vision of apparatus attachable to ordinary fur
of an open hearth furnace.
Figure 4 is a side elevation of a portion of an
open hearth furnace and illustrates the repair
A still further object of the invention is the
unit in position in the area being repaired,
provision of a repair unit for an open hearth fur
By referring to the drawing and Figures 1 and
nace incorporating means facilitating its place—
‘2 in particular it will be observed that an open
ment in position therein.
hearth furnace has been partially illustrated and
A still further object of the invention is the
that a front wall thereof is generally indicated by.
provision of means for charging a repair unit
the numeral IS and that one of the charge open
into an open hearth furnace and providing for
ings or doors thereof is indicated by the nu
a double pivoting action in bringing the repair
meral H. A pair of buck stays i2 are illus
unit into alignment with the area to be repaired.
trated which comprise vertically positioned sup
The repair unit and method of installation
ports which cooperate with the furnace struo
shown and described herein has been designed to
facilitate the repair and maintenance of the front 25 ture in holding the roof thereof in position.
Figure 1 a dotted section it of the front wall
wall portions of open hearth furnaces. t is well
It indicates an area to be repaired and by reknown that open hearth furnace walls frequently
ferring to the opening or charging door H, as
burn out and must of necessity be repaired or re
shown therein, it will be observed that a charging
placed with the resultant delay in the processing
arm M is shown extended therethrough into the
of the metal in the openv hearth furnace. The
interior of the open hearth furnace. An attach»
present invention contemplates the provision of
ment bracket i5 is formed to provide means of
apparatus for attachment to the conventional
attachment between the charging arm. 14 and
furnace charging machines, which apparatus, by
that portion of a conventional open hearth fur
utilizing the mechanism of the furnace charging
nace charging machine which normally supports
means, quickly and conveniently charges a pre
the charging box. In utilizing the present in
formed repair unit into the open hearth furnace
vention the charging arm [4 is attached to the
and moves it into position in the area to be re
conventional charging machine in place of a con
paired. The repair is, therefore, made through
ventional charging box, thus enabling the charg
one of the conventional front doors of the fur
nace and depends on the utilization of the con 40 ing machine equipment to be utilized in effecting
a rapid and satisfactory repair operation.
ventional furnace charging equipment.
Still referring to Figures 1 and 2 of the draw
With the foregoing and other objects in view
ing it will be noted that the opposite end of the
which will appear as the description proceeds,
the invention resides in the combination and ar 45 charging arm [4 is provided with a pivoted
bracket I6 which is pivoted to the charging arm
rangement of parts and in the details of con
14 by means of a pivot IT. The pivoted bracket
struction hereinafter described and claimed, it
I8 is provided with a pair of vertically positioned ’
being understood that changes in the precise em
arms l8 and each of these vertically positioned
bodiment of the invention herein disclosed can
arms I8 is provided with a pair of slots l9. The
be made within the scope of what is claimed 50 pivoted bracket It serves as a mounting means
without departing from the spirit of the invention.
for a repair unit which is carried thereby and
The invention is illustrated in the accompany
hence by the charging arm l4 and the conven
ing drawing, wherein:
tional open hearth charging machine (not
Figure 1 is a front elevation of a portion of an
shown).
open hearth furnace illustrating one of the 55
Still referring to Figures 1 and 2 of the draw
2,4089 1d
3
ing it will be observed that the pivoted bracket
d
is held thereon by means of a plurality of headed
studs 2| which engage the slots l9 in the arms
ered slightly to disengage the slots IS in the arms
I 8 from the headed studs H of the repair unit
which action permits the charging mechanism
including the pivoted bracket 16 to be moved
away from the repair unit and Withdrawn through
I8 of the pivoted bracket Hi. In addition thereto
the furnace opening.
it of the charging arm M has a repair unit 20
positioned thereon and that the repair unit 20
the repair unit 28, which consists of a steel box
It will thus be seen that a practical and rela
2i ?lled with suitable refractory materials, is
tively simple method of repairing front walls of
provided with a drilled opening in which a rod
open hearth furnaces has‘been disclosed in addi
22 is positioned in a, manner so that it passes 10 tion to apparatus for effecting such repair.
through both the repair unit 20 and an opening
Having thus described my invention, what I
in one of the arms “3. This rod 22 insures against '
claim is:
‘
the'displacement of the headed studs 2| from
-1. Mechanism for repairing an open hearth
their positions in the slots [9 in the arms [8.
furnace wall and including a charging arm hav
As is well known in the art, conventional open 15 ing a bracket pivoted to one end thereof, the said
hearth charging machines are designed to charge
charging arm adapted for mounting on a con
a charging box into an open hearth furnace and
ventional charging machine, means formed on
turn the same more than 90 degrees from the
said bracket for carrying a repair piece, said
position charged in order to drop the contents
bracket so formed as to pivot the repair piece
into the furnace. In utilizing the present inven
into upright position upon the charging arms
tion the charging arm I4 is carried by the con
being turned 90 degrees as by the charging
Ventional charging machine (not shown) and is,
machine.
therefore, capable of being turned thereby.
By referring to Figure 3 of the drawing it will
be observed that the charging arm M has been
turned 90 degrees from the position illustrated
in Figure 2 and that as a result of such turning
the pivoted bracket l8 and the repair unit 26
thereon has swung, as indicated by the arrow,
2. In a mechanism for repairing an open hearth
wall and including a charging arm adapted to be
attached to a charging mechanism and extended
into an open hearth furnace, a bracket pivotally
affixed to said charging arm for holding a repair
piece in a, horizontal and in a vertical position,
the said pivoted bracket adapted to turn the said
into vertical position immediately beside the 30 repair piece from horizontal’ to vertical position
charging arm I d and spaced therefrom a distance
equal to the thickness of the pivoted bracket l6.
In such position the repair unit 20 may then be
moved into the indicated location which, in Fig
ures 1, 2 and 3, is indicated by the numeral l3. '
Still referring to Figure 3 it will be observed that
upon the said charging arms being rotated 90
degrees so as to bring the repair piece into ap
propriate position for movement into an area to
be repaired.
3. A device for attachment to an open hearth
furnace charging mechanism, said device pro
the upper portion of the’ front wall ID of the fur
vided for the placement of a repair piece in the
nace has been burned away on an irregular angle
front wall of the said furnace and consisting of
and means has, therefore, been provided in con
a charging arm having a bracket pivoted to an
nection with the repair unit 20 to ?ll in this space. 40 outermost end thereof, the said bracket having
Such means comprises an extension 23 formed
means formed thereon for holding a repair piece,
on one end of the repair unit, the side sections
the said pivot being located off-center with re
24 of which are formed of very light material
spect to the said bracket and repair piece, and
so that they will crumble as the repair unit is
the bracket and repair piece thereby adapted to
drawn into place as illustrated in Figure 4. The 45 turn from horizontal charging position into ver
space de?ned by the metal forms 23 and 24 is
tical patching position upon the partial rotation
?lled with appropriate material such as dolomite. .
of the charging arm by the said furnace charging '
Byreferring now to'Figure 4 of the drawing it
mechanism.
a
will be observed that the charging arm M has
4. A device for attachment to an open hearth
been moved outwardly with respect to the open
furnace charging mechanism, said device pro
hearth furnace thereby bringing the repair unit
vided for the placement of a repair piece in the
20 into position against the buck stays l2. In
front wall of the said furnace and consisting of
such position threaded bolts 25, which were previ
a [charging arm having a bracket pivoted to an
ously positioned 'in the repair unit 20, engage
outermost end thereof, the said bracket having
cross pieces 26 placed across the buck stays l2 -' means formed thereon for holding a repair piece,
and are secured thereto. Still referring to Fig
the said pivot being located off-center with re
ure 4 it will be observed that when the repair
spect to the said bracket and repair piece and
unit 29 has been moved into appropriate position
the bracket and repair piece thereby adapted to
against the buck stays ' 12 of the open hearth
turn from horizontal charging position into ver
furnace It) the rod 22 is driven from its location (H) tical patching position upon the partial rotation
in the repair unit and arm l8. This permits the
of the charging arm by the said furnace charging
charging machine utilized in handling the charg
111% arm I4 and hence the repair unit to be low
JOHN J. CAIN, JR.
mechanism.
a
7
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