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Патент USA US3068823

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Dec. 18, 1962
J. P. WALT
3,068,813
FURNACE BLOCK WITH HANGER SOCKET
Filed Feb. 8, 1961
2 Sheets-Sheet 1
7
INVENTOR
s/U?/V la. 14410‘
BY
ITTOQ/VM.
Dec. 18, 1962
.1. P. WALT
3,068,813
FURNACE BLOCK WITH HANGER SOCKET
Filed Feb. 8, 1961
' 2 Sheets-Sheet 2
'
NV
P15 7
JOHN A. a???
.
BY
MWQM)’ ‘20%.,
ATTORNEYS
7
3,668,813
Patented Dec. 18, 1962
2
tapered socket for receiving a supporting rod. The rod
3,068,313
can be wedged into the socket to hang the block in a
John I’. Wait, Pittsburgh, Pa., assignor to Harbison
furnace roof or to hold it in a side wall of a furnace.
For a rod that is 1A" in diameter the outer end of the
FURNACE BLOCK WITH HANGER SDCKET
Walker Refractories Company, a corporation of Penn
socket should have a diameter of about 5%L6", while the
sylvania
inner end of the socket should be about 9X16" in diameter.
The socket generally will be about 11/2" long. If the
sleeve is not tapered, it should be provided inside with a
‘Filed Feb. 8, 1961, Ser. No. 87,815
4 Claims. (Cl. 110—99)
screw thread so that a threaded hanger rod can be screwed
This invention relates to bricks or blocks used for
building the walls and roofs of industrial furnaces, and 10 into it.
more particularly to the means for fastening such blocks
to hangers or other supports.
It is customary to suspend the bricks in flat furnace
roofs from hangers. In arched roofs where hangers are
When the blocks are to be laid in courses in the walls
of a furnace, sleeves 5 may be welded to the channel webs
the buckstays.
Supporting rods 7 prevent the walls from buckling inward.
1, as shown in FIG. 1. They should be located midway
between the two ?anges. The blocks are laid with their
not used for supporting the bricks initially, hangers often 15 sleeves at their outer ends, as shown in FIGS. 2 and 3.
Rods 7 then are driven into the sockets and the outel
are employed for supporting bricks that are inserted for
ends of the rods are hooked around either vertical or hori
patching purposes. For stabilizing the side walls of a
zontal supports between the buckstays 8. The rods are
furnace, horizontal metal plates often are inserted every
shown attached to vertical bars 9 secured to horizontal
few courses and extend outward to cross bars, to which
bars 19, the ends of which are fastened to the buckstays.
they are attached. The ends of the bars are secured to
It is among the objects of this invention to provide
If the blocks are to be used in the roof of a furnace
it is desirable to remove the sleeves a material distance
a furnace block that can be suspended from a plain or
from the joints between the blocks, so that the hanger
threaded rod in a simpli?ed manner, that can be held in
a side wall without the use of metal plates, that is easy 25 rods will ‘be better protected from oxidation. This is
done by welding each sleeve 12, shown in FIGS. 4 and 5,
to make, and that has no projections.
to one of the reinforcing channel flanges 13 embedded in
In accordance with this invention a metal sleeve, which
the refractory brick 14. The sleeve should be located
extends lengthwise of a refractory brick, is rigidly mount
about midway between the side of the brick adjacent the
ed in the brick. One end of the sleeve is exposed at one
end of the brick for receiving a supporting rod. The 30 web 15 of the channel and the opposite side of the brick.
As shown in FIG. 6, the blocks are suspended in a fur
sleeve may be tapered for a wedge ?t with a rod, or thread
nace roof by supporting rods 16 or 17 hooked over sta
ed for receiving a threaded rod. If the sleeve is molded
tionary supporting bars 18 above the roof. The lower
into an unburned brick, it is preferred that a metal mem
ends of the bars may be driven tightly into the sleeve
ber, which may be a reinforcing member, be molded in
the brick also. In such a case, the sleeve is secured to 35 sockets or hooked onto bent rods 19, the ends of each
of which have been driven into the sockets of two ad
the metal member. When the latter is a channel, the
joining blocks.
sleeve is disposed inside the channel and is secured to the
In the modi?cation shown in FIG. 7, the brick 21 is
central part of its web or to either of its ?anges.
a burned brick, so the sleeve 22 was applied after the
The invention is illustrated in the accompanying draw
ings, in which
FIG. 1 is a perspective view of the furnace block, with
parts broken away to show the sleeve;
40
rick was made. For that purpose the brick was provided
at a predetermined position in one end with a recess at
the time it was molded, or a hole was drilled into it after
the brick was formed. In either case, the sleeve is in—
FIG. 2 is a reduced fragmentary plan view of a course
serted in the opening after the brick was burned. The
of blocks in a furnace side wall;
FIG. 3 is a vertical section taken on the line III—III 45 sleeve can be held in position by barbs 23 stuck out of its
of FIG. 2;
FIG. 4 is an end view of a modi?ed block;
FIG. 5 is a fragmentary side view of the FIG. 4 block,
wall, or merely by a suitable adhesive. Although the
sleeve could be tapered like the one described before, the
sleeve illustrated is cylindrical and it is provided with
an internal thread so that a threaded hanger rod (not
FIG. 6 is a side view of a row of suspended blocks in 50 shown) can be screwed into it.
A furnace block made in accordance with this inven
a furnace roof; and
tion is relatively easy to manufacture. It has no project
FIG. 7 is an enlarged fragmentary side view of another
partly broken away;
ing parts that would interfere with storage and shipping,
modi?cation, partly broken away in section.
or that have to be bent into operative position when the
Referring to FIG. 1 of the drawings, a metal member,
preferably in the form of a reinforcing channel having a 55 ‘blocks are ready to be installed. As a result, these blocks
web 1 and side ?anges 2, is molded into a refractory brick
3. The channel is shorter than the brick, so the ?anges
are completely embedded in it, but the outer surface of the
web is exposed. A brick reinforced in this manner is well
known. It may be enclosed in a metal case (not shown)
if desired.
In accordance with this invention a metal sleeve 5 is
can be used like standard bricks when necessary.
The
voids formed by the sleeves do not replace enough refrac
tory material to weaken the bricks. Two blocks can be
installed at a time by using bent connecting rods 19,
‘which will hold the two blocks together and not allow
them to swing relative to each other while they are being
lowered into position in a roof.
According to the provisions of the patent statutes, I
have explained the principle of my invention and have
also molded into the brick. Before molding, however,
‘the sleeve is welded to the inside of the channel in a
position in which it will extend lengthwise of the channel. 65 illustrated and described what I now consider to repre
sent its best embodiment. However, I desire to have it
The sleeve is located at one end of the channel and pro
understood that, within the scope of the appended claims,
jects a short distance beyond it so that the outer end of
the invention may be practiced otherwise than as speci?
the sleeve will be substantially ?ush with the end of the
cally illustrated and described.
brick and therefore exposed in the ?nished block. How
I claim:
ever, it is best that the sleeve not project from the brick, 70
1. A furnace block comprising a refractory brick, a
so that the block will have all ?at sides with no projection.
metal member embedded in the brick and extending
The sleeve preferably is tapered inwardly to form a
3,068,813
a
4
3
v
4. In a furnace, a row of refractory brick, a metal
member embedded in each brick and extending lengthwise
wise of the brick and embedded in one end thereof be
thereof, a metal sleeve extending lengthwise of each brick
side said member, the sleeve being secured to said mem
and embedded in its outer end beside said metal member
ber, and the outer end of the sleeve being exposed for
receiving a supporting rod.
,
a
'
5 therein, each sleeve being secured to the adjoining metal
member, the outer ends of the sleeves being exposed, sup
2. A furnace block comprising a refractory brick, a
porting rods having inner ends disposed in said sleeves
metal channel embedded in the brick and extending
in tight frictional engagement therewith, and stationary
lengthwise thereof, the channel having a web and side
means holding the outer ends of the rods'
?anges, and a metal sleeve extending lengthwise of the
brick and embedded in one end thereof inside the chan
References Cited in the ?le of this patent
nel, the sleeve being secured to the inner surface of said
lengthwise thereof, and a metal sleeve extending length
web substantially midway between said ?anges, and the
outer end of the sleeve being exposed for receiving a
supporting rod.
,
3. A furnace block comprising a refractory brick, a
metal channel embedded in the brick and extending
lengthwise thereof, the channel having a web and side
?anges, and a metal sleeve extending lengthwise of the
brick and embedded in one end thereof inside the chan
nel, the sleeve being secured to the inner surface of one
of said side ?anges about half-Way between the side of
the brick adjacent said web and the opposite side of the
brick, and the outer end of the sleeve being exposed for
receiving a supporting rod.
UNITED STATES PATENTS
616;311
'
Gracey __; __________ _'_ Dec. 20, 1898
1,578,901
McCaulley' ____ __'__;___ Mar. 30, 1926
1,599,745
2,592,634
Cinnamond '_;___a ____ __ Sept. 14, 1926
Wilson _____'__-'_~_ ____ __ Apr. 15, 1952
2,725,833
'Reintjes ______ _; _____ __ Dec. 6, 1955
2,846,963
2,932,265
Mason et a1 _______ _.,____ Aug. 12, 1958
Heuer “-11 _____ .1.... Apr; 12, 1960
693,761
France _____ n ______ _'__ Apr. 11, 1930
FOREIGN PATENTS
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