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Патент USA US2124639

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July 26, 1938.
w; J. SPENSLEY
-
FOUNDRY JACKET
2,124,639
"
Filed Nov. 3, 1937
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Patented July 26, 1938
2,124,539
"UNI TED ‘STATES PATENT OFFIEC
2,124,639
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‘
FOUNDRY JACKET
William J. Spensley, Dubuque, Iowa, assignor to
The Adams Company, Dubuque, Iowa, a cor
poration of Iowa
Application November 3, 1937, Serial No. 172,536
5 Claims. (Cl. 22-112)
This invention relates to foundry jackets and jackets have been known in the past but their
.has special reference to a metal foundry jacket construction has been such that they are open
of improvedformand to a novel method for mak
to a number of serious disadvantages both from
ing the same.
the standpoint of the manufacturer and of the
While. foundry jackets are of relatively simple user. According to the present invention, I make “.5
construction, yet numerous difficulties arise in four cast plates designated generally by the nu
the manufacture .of jackets which will give satis
merals 1, 8, 9 and I I, the plates ‘I and 8 being
factory service over a long period of time, due identical and formingthe sides of the jacket, and
inv a large measure to the severe-conditions under the plates 9 ‘and II being identical and forming
which they are used and to the rough treat
the end walls of the jacket, These plates are 30
ment given them by the workmen. They are cast with a plurality of vparallelly disposed trans
subjected to rapidly changing temperature which »versely extending grooves I2 which are spaced
at times becomes very high, and to the prolonged longitudinally of the plates on the inner surface
action of very hot gases produced in the casting thereof. In the present instance these grooves
) of metal, which in?uences ‘tend to damage the are spaced about three to the inch and form
metal from which they are made and to warp therebetween aplurality of transversely extend
the sides of the jacket which renders them use
ingribs I3. The-grooves have sloping side walls
less because they will no longer properly ?t the .asshown ‘at I4 and the ribs have flat upper sur
molds. When they become warped in this fash
faces as shown at I5 formed by grinding or
ion it has been necessary, in the past, to discard otherwise trimming the upper edges of the ribs as
the jackets, and thus incur a considerable by grinding .in a ?at bed’ grinder so that all of N) 0
?nancial loss.
the upper surfaces .or crowns of the ribs are co
Important objects of the invention are the pro
planar. The grooves I2_ extend the entire dis
vision of a foundry jacket having improved struc
tance across the plates and terminate directly
ture resulting in greater strength and lighter on the edges thereof .as shown at I 6 (Figure 1).
weight, which causes the rapid dissipation of gas The outerlsurface of- the plates. .is provided with 5
away from the surface of the jacket to prevent grooves IT and. ribs I8 identical in every respect
pocketing of the gas against the surface and re
with the grooves I2 and ribs I3, with the excep
sultant uneven temperature, which structure per
mits of replacement of any part of the jacket
when damaged without special ?tting, and which
resists distortion of the jacket ‘in use.
Another object of the invention is the provision
of a method for making foundry jacketswhich
35 includes the step of casting suitable side plates
and wherein plates from the same molds may
be used in the making of diiferent types of
23 at the opposite end thereof, the brackets be
ingpreferably cast integral with the plate. The
plates 9 and II likewise have brackets 24, 25,
parent from the following description and the
26 and 21 spaced from the edges of the plates
in the same planes as the brackets of the plates
7 and 8. The end plates 9 and II are further
‘jackets.
Otherobjectsand advantages will become ap
vaccompanying drawing, in which—
_
Figure 1 ‘is ‘a perspective view of a jacket em
bodying my invention;
_
Fig. 2 is a fragmentary side view showing one
45 ‘corner of a jacket in which the opposed side walls
are parallel;
Fig. 3-is a fragmentary side view similar to
Fig. 2 showing a jacket in which the side walls
are tapered;
Figs. 4 and v5 are top views of Figs. 2 and 3,
and
Fig. 6 is a section ‘through an end wall.
The invention contemplates a foundry jacket
formed substantially entirely of cast metal of
55 which aluminum or cast iron is preferable. Such
tion. that the tops of the ribs are not ?nished in
themanner of the ribs I4, the casting merely
being cleaned off on the outer surface in the
usual manner. The ‘outer surface of the side
members ‘I and 8 is provided with spaced brack
ets I9 and 2| at one end thereof and 22 and
provided with outwardly extending handle mem
bers 28 castintegral with the plates.
vvAfter the casting of the plates and the grind
ingof the inner surface thereof, the edges of the
4.0
platesare ground or otherwise trimmed to a
proper bevel as shown at I 6 and to open the ends
of all of the grooves I2. Likewise the ends of
‘each of ‘the plates are then ground to a slope
as shown in Fig. 2 in such manner that'the
lower edges of the plates are longer than the 50
upper edges thereof, as will be apparent from
Figs. 2 to 5.
‘The plates are held together at their corners
to ‘form' a rectangular structure by means of
lower corner ‘members 29 and upper corner mem- 55
2
2,124,639
bers 3i seated on the brackets of the plates.
Thus, the corner member 3| is seated on brackets
22 and 24 of the plates 8 and II, spanning the
corner formed by these plates, and likewise, the
corner member 29 seats upon brackets 23 and
25 of the plates. similarly spanning the corner.
The corner member 3| is secured to the brackets
by means of bolts 32 and 33, and the corner
member 29 by means of bolts 34 and 35 which
10 pass through holes in the brackets 22 to 25.
These holes are drilled into the brackets while'
the plates are rigidly held in ?xtures so that the
holes always occupy the same relationship with
is further facilitated by the fact that the metal
is relatively thin in the areas where the inside
and outside grooves pass each other. This means
a material reduction in Weight and yet because of -
the vertically disposed ribs on one side of the
plate and the horizontally disposed ribs on the
opposite sides of the plate, a jacket of greater
strength is produced than has heretofore been
possible.
A feature of great importance is the fact that 10
any one of the side walls of the jacket may be
replaced by the user. In other words, in case
of damage to any one of the side wall plates, the
user may order from the manufacturer a re
respect to each other and with respect ‘to the
15
15 plates. It will be seen that the plates are like \ placement part which can then be installed in the
wise secured together at each corner by means old jacket without any ?tting whatever, and the
of corner members 36, 31, 38, 39., etc. secured
to the plates in like manner, thus ?xedly and
rigidly holding the plates in the form of a rec-'
'20
resultant jacket will have the proper taper and
?t. This is possible because of the fact that the
holes in the brackets are uniformly spaced and
tangular jacket structure.
are inserted therein with the plate in a ?xture 20
In the manufacture of jackets of this char
acter, it is necessary for the manufacturer to pro
vide jackets of the same size at the base but hav
so as to obtain uniformity in production. It is
further made possible because the jacket ‘is
ing different degrees of taper. For example, the
which is removable by removing suitable bolts.
While I have thus described and illustrated a 25
speci?c embodiment of the invention I am aware
25 form shown in Figure 1 is a jacket having a taper
of about 1A" per foot per side, whereas in Fig. 2
the jacket has vertical side walls having no taper.
In order to manufacture jackets from the same
molds having any desired degree of taper I have
30 provided the plates with sloping‘ ends as shown in
Fig. 2, and provide a series of corner members
having the distance and relationship between the
bolts 32 and the bolts 33 varied through the de
sired range by steps so that by selecting the proper
corner memberrand securing the same in place on
the brackets, the resultant jacket has the desired
taper in the side wall. This is illustrated from
a comparison of Figs. 4 and 5. Thus, in order to
impart the greater taper shown in Figs. 3 and 5,
corner members 4| are employed in which the
distance and relationship between the two bolts 32
formed of four separate cast plates, any one of
that numerous alterations and changes may be
made within the spirit of the invention and I do
not wish to be limited except as required by'the
prior art and the scope of the appended claims, 30
in which-—
. .'
I claim:
1. A foundry jacket comprising four independ-}
ent side members adapted to be connected, to
gether at their ends to form a rectangular struc
ture, each of said members having the inner sur
35
face provided with parallelly disposed grooves
closely spaced along the entirelength thereof,
said grooves terminating at the edges of said side
members for communication therewith behind 40
the inner plane of the member, and having close
is the same as that found in Figs. 2 and 4, and ‘ ly spaced grooves on the outer surface thereof
likewise the distance between the bolts 33 is the extending longitudinally of said plates, spaced
same as in Figs. 2 and 4. However, it will be brackets at each end of said members having
‘seen
that the distance between the bolts 32 and prearranged holes, corner members’ shaped to 45
45
33 is materially,‘ less than in Figs. v2 and 4, thus
drawing the ends of the plates substantially to
gether adjacent their upper edges as shown at
42, as distinguished from the relatively wide spac
50 ing therebetween as shown at 43 in Figs. 2 and 4.
It will be seen that through this arrangement any
desired taper may be obtained in the jacket.
Attention is directed to the manifold advan
tages of my improved jacket. It will be seen
55 that since the grooves I 2 expand completely to
"the top andlbottom of the side walls there is no
possibility of heated gases being trapped adja
cent the side walls of the jacket during the cast
ing operations. The size of the jacket is deter
60 mined by the plane of the upper edges of the ribs
5 3 and consequently when the jacket is applied to
a mold the upper edges of these ribs bear against
the sand of the mold leaving the grooves l2 ex
posed, which thus form conduits for conducting
65 the gases away from the mold and prevent their
‘accumulation adjacent the surface of-the jacket.
This means‘that in use the jacket rapidly as
sumes a uniform temperature which materially
prolongs the life of the jacket. Furthermore,
70 the ribs l8 on the outer surface function as radi
ating ?ns tending to' dissipate the?heatr in the
metal. As a result of this construction, foundry
jackets made in accordance with this invention
never acquire in use anywhere near the high tem
75 perature reached by the usual metal jacket. This
span the corners of said structure and seat on said
brackets, and bolts passing through the corner
members and said brackets to retain said side
members in prearranged relationship as deter—
mined by the size of said corner members.
50
2. A foundry jacket comprising four independ—
ent cast metal side members adapted to be con
nected together at their ends to form a rectangu
lar jacket structure, each of said members having
an inner surface provided with transverselyex
tending parallelly disposed grooves closely spaced 55,
along the entire length thereof, said grooves ex
tending completely across the side members and
terminating at the edges thereof for communica
tion therewith behind the inner plane of the;
member, said members also having closely spaced
grooves on the outer surface thereof extending
longitudinally of said plates providing small areas
of thin cross-section in the regions where the
inner and outer grooves cross for reduced weight? 65
and rapid dissipation of heat, spaced brackets at‘
each end of said members having holes in pre
arranged relationship, corner pieces shaped to
span the corners of said jacket structure and
seat on end brackets of adjacent sidemembers,‘
and bolts in spacedrelation on the corner mem
bers and’ passing through the holes of said
brackets to secure said side members in prear
ranged relationship as determined by the size of
' said corner members.
1
"
2,124,639
3. A foundry jacket of cast metal comprising
plates secured together at their ends to form a
rectangle, each of said plates having an inner
surface provided with transversely extending par
allelly disposed grooves closely spaced along the
entire length thereof, said grooves extending com
pletely across the side members and terminating
at the edges thereof for communication there
with behind the inner plane of the member, said
10 members also having closely spaced grooves on
the outer surface thereof extending longitudinal
ly of said plates providing small areas of thin
cross-section in the regions where the inner and
outer grooves cross, for reduced weight and rapid
dissipation of heat.
4. The method of making a foundry jacket
comprising casting ?at metal plates with trans
versely extending parallelly disposed grooves on
one side thereof providing intermediate upstand
ing ribs, said grooves being closely spaced along
the entire length thereof and extending com
pletely across said plates, with parallelly disposed
closely spaced grooves on the opposite sides of
the plates extending lengthwise thereof, and with
outstanding brackets on the last mentioned sides
adjacent the ends of said plates, grinding the
ends of said plates on a slope, ?nishing the sur
face of said plates to produce coplanar upper
3
edges on said ribs, securing said plates in a ?x
ture, drilling holes in' said brackets according
to a uniform pattern, and securing said plates
together in the form of a rectangle by connect
ing the brackets at abutting ends of said plates
by means of corner members of a shape dependent
upon the taper of said jacket, and bolts received
in said drilled holes.
_
5. The method of making a foundry jacket
comprising casting flat metal plates with trans 10
versely extending parallelly disposed grooves on
one side thereof providing intermediate upstand
ing ribs, said grooves being closely spaced along
the‘ entire length thereof and extending com
pletely across said plates, with parallelly disposed
closely spaced grooves on the opposite sides of
the plates extending lengthwise thereof, and with
outstanding brackets on the lastmentioned sides
adjacent the ends of said plates, grinding the ends
of said plates on a slope, ?nishing the surface of i
said plates to produce coplanar upper edges on
said ribs, securing said plates in a ?xture, drilling
holes in said brackets according to a uniform
pattern, and connecting said brackets by means
of any of a plurality of corner members depend 25
ent upon the relative slope to be imparted to said
side walls to produce a jacket of any desired taper.
WILLIAM J. SPENSLEY.
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