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Dec. 17, 1946.
Filed Jan. 15, 1941
2 Sheets-Sheet 1
' 97/11/1111!»
64%;’, RN,
Dec. 17, 1946.
Filed Jan. 15, 1941
2 Sheets-Sheet 2
Patented Dec. 17, 1946
Frederick Kautz, Norwood, Pa.
Application January 15, 1941, Serial No. 374,568
9 Claims. (ol. 189-84)
The invention relates to the production of a
material suitable for use in screens, framing and
frame structures, enclosures, partitions, bins,
panels and guards in various structures, and par
ticularly with relation to framing elements for
meshed materials of various kinds. Thus, my
invention is applicable to production of screens
rial, and it is an important
2 aim of my invention
to present a manner of construction which will
enable the production of screen or expanded
metal structural members having panel form or
other edging or stiffening of heavy structural
angle steel devices or their equivalents attaining
many novel advantages over prior structure or;
in a novel form, suitable for use as screens in
material, and having great strength and dur-.,
screening 'or separating and classifying material,
ability, as well as simplifying steps required in
or for screens adapted to function to enclose small 10
birds, animals or the like, or for fencing.
It has also been an aim to‘attain these'im
The invention particularly aims to present such
provements while at the same time reducing the
structure which may also be used to good ad
cost of such materials. A further aim is to‘
vantage in the framing of building structures so
improve the construction of the units to the end
that units of my invention may be set up without 15 that it may be very quickly‘ assembled with a
the use of studding necessarily, in some situa
minimum of experience required on the part of'
tions, and if not used as an open mesh. partition,
workmen, applying or erecting the material.
they serve for the application of plaster, stucco,
It is an important aim of the invention to‘
and the like, to complete a wall, either as a
present structural material of this kind which will
partition or as an external bearing wall. It is 20 afford a maximum strength and rigidity in‘walls,
a particular aim of the invention to present struc
fences, partitions, and otherwise, incident to its
tural material adapted to be used as an expanded
metal support for plaster and the like, or with
out the application of such plastic, to serve as
fencing or as a separating screen for various
Another important aim of the invention is to
present a structure element of this kind which
An object of the invention incident to pro
duction of this material fis'to enable the weld to
be made in such manner that the welded mate
rial will not be exposed saliently, and therefore,
in many situations, will involve a minimum re-. \
quirement of cleaning, and also will‘ be liable?
in a minimum degree to corrosion. A further
aim is to present a novel structural unit adapted
to be assembled in juxtaposition with‘other like‘
is especially adapted to use in the construction
of buildings, either commercial or domestic,
where shelving is to be put in place, so that the
expanded metal or corresponding unit may be
units, to enable the drawing of adjacent .units
built into a wall or partitioning screen, and at
in a novel way to form a complete structure of‘
the same time supply shelf support. Another
important aim of the invention is to present
a structure element adapted to use in producing
steel re-inforced concrete slabs or the like, with
novel advantages. A further additional purpose
of the invention is to present a unit of material
high strength and good appearance.
A further important aim of the invention is to‘
present a structural unit of this kind which will
be extremely light in weight, yet without sacri?c~
ing essential strength for the uses contemplated.
It is an important aim of the invention to present
of this kind adapted to use as a combined mold, 40 a novel means for attaching screen material to a.
concrete slab or wall reinforcement, and per
frame piece or edging, whereby the welding of‘v
manent edge facing for ?nished work whereby it
the screen material or expanded metal to such
is protected from chipping, and whereby also
framing piece may be effected without weakening
if desired, two or more units formed with my in~
the screen at the junction with the weld, with
out burning the screen material, and in such
vention may be connected together, if desired, by
fastenings engaged between the mold or edge
facing elements.
manner that a highly secure attachment of the
screen material is eifected.
While I am aware that wire screens of corre
Additional objects, advantages and features of
sponding material have been heretofore framed
invention reside in the construction, arrange;
by panel-like structural steel members and the 50 ment and combination of parts involved inthe
like, there has heretofore been di?iculty in effect
embodiment of the invention,‘ asgwill be more»
ing a satisfactory union or securement of the
readily understood from the following descrip
screen material to the metal framing, especially
tion and accompanying drawings, wherein
by welding, on account of the diiference in heat
Figure 1 is a fragmentary view of a structural
diffusion of the screen material and frame mate 55 element adapted to many and various uses, as.
tionally understood from the description thereof
and its adaptability to various uses.
Figure 2 is a cross section thereof.
Figure 3 is a similar cross section, showing a
but particularly including the deposit of metal
within the angle immediately at the junction of
the two ?anges, in such manner that the molten
metal surrounds the end portions of the wire of
the screen, or the edge portion of the screen
modi?cation of the arrangement of the edge
member of the unit with respect to the screen
Figure 4 is a similar fragmentary section show
ing a further arrangement of the screen mate
the screen projects inwardly of the angle at the
junction of the two ?anges, after which a weld I3
is formed in accordance with any usual practices,
hereinbefore set forth, and as may be addi-'
which is inserted and projected inwardly through
10 the angle.
rial with respect to the edging member.
Figure 5 is a further modi?cation of the rela
tion of the screen to the edge member, the fore
going ?ve views illustrating the use of simple
angle structural iron or steel members.
Figures 6 and 7 are horizontal cross sections of
modi?cations illustrated in Figures 1 and 2,
Fig. 8 is a fragmentary perspective view show
ing one manner of producing the article illus
trated in Figure 5.
Figure 9 is a fragmentary perspective view
showing another manner of forming the stiffen
ing member to receive the screen material to
produce an article corresponding to that shown
In this way, the heat is absorbed
from the weld body by the flanges I2 and dis
sipated by these, so that a minimum amount of
heat is transmitted or accumulated in the ex
treme edge portion of the open-mesh material I l .
By the assembling method described, using two
separate strips to form the ?anges I2, the welding
of the open-mesh or sheet metal material effects
also the securement of the two ?anges together,
so that a complete angle is produced and the
advantages utilized in the stiffening of the unit
produced. In Figure 3, the angle l0’ may be
produced of two straps of metal struck together
at the proper angle as illustrated, while the body
or the screen extends inwardly from the angle,
but with an edge portion which projects out
in Figure 2.
wardly at the convex angle formed by the two
Figure 10 is a similar view showing another
?anges. Using strap material which has been
manner of forming the stiffening stock to receive
with a ?at edge substantially at right
the screen for producing the last named article.
angles to the major plane of the strap, a recess
Figures 11, 12 and 13 show further modi?ca
30 is formed between the two edges of the ?anges,
tions for producing such article.
into which the weld material l4 may be intro
Figure 14 is a further modi?cation of form of
duced, substantially as it was deposited in the
stiffening member for receiving the screen to
device of Figure 2, surrounding the projected edge
produce the article illustrated in Figure 5.
portion of the screen material, and the heat of
Figure 15 is a further modi?cation of the still
the weld being transmitted to the ?anges and
ening member for producing the article of Fig
dissipated thereby, with the same bene?t in
ure 2.
preserving delicate screen material from burning
Figures 16 and 1'7 illustrate the various uses
or excessive damage by heating of the weld.
of the structural elements_of Figures 2 and 3
Utilizing a unit such as shown in Figure 3, it will
readily be appreciated that a frame made up
as described with angles IO meeting at the cor
ners, as shown in Figure 1, may be set upon a
pianiform surface, and ?lled with a Portland
cement concrete aggregate of suitable kind, so
ber of angles ID, to which there is attached at
the junction of the ?anges of the angles a body 45 that the concrete will penetrate through the open
mesh material to the supporting surfaces, where
of open-mesh material II, which may be woven
it will spread and be con?ned by the angles I0,
wire, expanded metal, or sheet metal, as will be
in a screen or similar partition structures.
There is illustrated in Figure 1 a portion of
a unit structural member suitable for various
uses, and which may represent one corner of a
rectangular frame, consisting of a suitable num
understood hereinafter. In this particular in
stance, channel portions of the angles are dis
posed at the outer sides of the frame, and the
screen material is engaged With the angles or
solid members at the outer sides of the angles
formed by the junction of the two ?anges l2
and the concrete may be introduced until its top
surface lies flush with the upper edges of the
angles H5, as will be appreciated. The slabs cast
in this manner will thus be reinforced by the
open mesh material, while its edge portions are
protected against chipping by the edge portions of
of the angles, and the screen material being ex
tended in a plane which approximately bisects ;
the ?anges [2.
The units formed as in Figure 1, and other
the angles at the junction of the ?anges I2.
modi?cations to be indicated herein may also be
set up on edge and connected to other elements
The screen material may be extended from the
inner side of this angle, substantially in the rela
tion shown in Figure 3, if preferred, and may
extend in various other directions, as shown in
the succeeding views, Figures 4, 5, '7 and following.
The angle l5 may be formed in various ways,
being adapted to be assembled from two ?at
strips or ribbons of materials brought together
at the proper angle as shown in Figures 2 and 3,
and following, where it may be a stock L-angle
rolled in one piece and, pierced, out, or other—
wise formed at the angle therein to receive the
open=mesh or sheet material, as will be described
more in, detail hereinafter.
In producing the
article of Figures 1 and 2, the respective strips
intended to form the. ?anges l2, are brought into
position as shown in Figure 2, after insertion of
an edge portion of‘ the screen material ll there
between, so that a small portion of the edge of‘
to be supported as a fence or other enclosure.
In Figure 4, the manner of attaching the screen
with relation to the ?anges of an angle is illus
trated, the screen material I! being laid against
the inner side of one of the ?anges with its ?rst
portions projected outwardly past the abutting
edge of the opposite ?ange, while a weld I 5 is
,- built up at one side of the angle around the
projected edge portion of the screen material II.
In Figure 5 the screen material is shown in the
same plane with respect to the angle, as in Fig
ure 4, but instead of being laid against the inner
side of the bottom ?ange lZ-A, and extended
away from the angle beside that ?ange, the
screen material is located outwardly of the an
gle, with its edge portion inserted inwardly be
tween the flange [2’ and the ?ange I'2—-A, the
' weld It being then built up at the inner-side of
the angle. In these last described two forms, the
angle di?ers from the arrangement of Figures 2
and 3 in that in Figures 2 and 3 the ?anges of
strip 34' set at the proper angle to a straight
strip-34a, so that the salients of the corrugations
abut said opposed straight strip. The corruga
tions of the strip may occur throughout their
the angles extend a common distance from the
vertex of the angles, while in Figures 4 and 5, the
upper ?ange l2’ shown is butted against the in
ner side of the ?ange l2-A, or at least against
the screen material inserted between the two.
The bene?cial result in the transmission or con
duction of heat from the weld to the ?anges, and
its rapid dissipation, are gained in the last de
scribed forms of the article in the same manner
as in the ?rst two.
lengths or at intervals, as desired.
In Figure 13, there is shown the manner of
forming the stiliening member in one piece, this
consisting of strip material having opposite, edge
portions bent on a longitudinal medial line of
the piece so as to dispose the edge portions at
right angles to each other, the junction material
of the strip at its central part being struck out
at intervals to form opposed tongues 36 will
ciently separated to form openings through the
sti?ening member at the angle, and to receive
wire intersections between the tongues 36. Welds
are applied at the inner side of the piece around,
In Figures 6 and 7, structures are shown some
what similar to that shown in Figures 1 and 2,
and comprise identical metal strips 8 and 9, an
gularly disposed, bisected by the end portion of
the mesh material or the like and welded at the
the wire intersections, so that the latter are
root.- The strip 8 is placed in the same plane
joined to the angle piece 35 thus formed.‘
as the mesh material, in order to obtain ?ush 20
In Figure 14, a, lower ?ange strip 31 is shown,
faced panels.
having positioned thereon, in spaced relation,‘
In Figure 8 there is shown a manner of form
metal slugs 39, and an upper strip 38 is then set‘
ing one of the strips to be assembled from an
upon the slug 39, at right angles to the strip 3‘!
angle stiffening member, in which the edge por
and the slugs. The screen material II is laid
tion of one strip which is to be butted against the
with its edge portion intersections upon the
side of the other strip is notched at intervals cor
?ange strip 31 and set between the spaced slugs.
responding to the spacing of the intersection of
The weld material is then applied at the inner‘
wires or other elements in the open mesh mate
side of the angle to join the two strips and the
rial, the material It being trimmed on the line
screen material, forming an angle corresponding
slightly outward of the junction of the wires. 30 to that shown in Figure .
After the trimming of the mesh material, its
In Figure 15, specially formed strip material
edge portion consisting of the intersections of the
is utilized to produce the angle sti?ness, in this
wires, is laid upon the inner side of the flange
‘case each strip being formed with any suitable
strip 25, while the notched ?ange member 24 is
set down against the other ?ange and so that
the respective wire intersections of the material
H are located within the notches. The weld ma
terial is then applied within the angle, substan
tially as at 16, in Figure 5, securing the two pieces
24 and 25 together, and securing the material H :
to the assembled angle.
In Figure 9, both strips 25 are notched in the
manner shown in Figure 8, and instead of one
of the strips being butted against the side of the
other, they are both disposed at an angle to the
plane of the material II and the weld is then
formed substantially as shown in Figure 2.
In Figure 10, each ?ange 29 of the sti?’ening
member orangle is shown as having extreme
edge portions pressed alternately in opposite di
number of alternated o?set ?at portions 40, and
inwardly curved sections 4|, so that when two'
strips are brought together with the inwardly
curved portions opposed to each other, the latter
may contact, and form elongated slots 42 between
the oppositely disposed ?at portions 40. In these
slots the wire intersections of the screen ma.
terial H may be respectively inserted and se
cured as before indicated.
From the foregoing, it will be seen that the
degree of angular relation of the two bisected
strips may be subject to considerable variations
for desired purposes, and that it is a general
advantage of welded construction that great
freedom of design is at disposal, and in the
present case, the angular degree may be dis
50 posed in such way as to obtain greater rigidity
rections, so that when brought together in proper
of panels in a plane common with the mesh or
angular relations with the formed edges adjacent
may be altered to reach better rigidity in a direc
each other and with opposed salients of the
tion substantially at right angles to the mesh
formed edges in abutment, as at 30, slots 3| are
formed between the oppositely pressed portions
While I have shown my invention with great
which are not in contact, and this permits the in
particularity, in its various forms, it is to be
sertion of the intersections of the screen material
understood that these are purely exemplary, and
ll into respective slots, so that welding material
that various other modi?cations may be made,
may be formed at the inner side of the angle, sub
as well as changes in the sizes, proportions and
stantially as shown in Figure 2, or otherwise ac 60 construction of parts, as well as combination of
cording to the relation of the screen material It
equivalent elements, without departing from the
to the formed angle.
spirit of the invention, as more particularly set
In Figure 11, it is shown how the strip members
forth in the claims following hereinafter.
32 may be formed for accommodation of a heavy
I claim:
wire mesh. In this construction the strips 32 are
1. A structural member comprising a mesh web,
angularly arranged and spaced apart and small
the elements of which bounding openings in the
metal slugs 34 are placed between the strips and
mesh structure adjacent the edges constitute pro
welded. Only occasional slugs will be required,
jecting elements spaced longitudinally of the
and these spaced apart as at 33, to permit en
mesh member, and a frame device therefor com
trance of the wire mesh, substantially in the rela
prising elongated members having ?anges ar
tion shown in Figure 2, although the screen may
ranged in angular spaced relation forming a root
be disposed in different planes with respect to
opening, slugs welded at spaced intervals within
the angle member, as will be understood.
the root opening, respective projecting portions
In Figure 12, the sti?ening member may be
of the mesh being engaged in the root openings
formed of a serpentine or transversely corrugated 75 between the slugs and weld materials for secur
7. A structural element of the character de
comprising a mesh web supported within
purposes described.
a frame having a frame member of angular form
2. A structural member comprising a mesh
in transverse section and embodying two lateral
sheet or web, the elements of which bounding
?anges disposed at an acute angle to each other,
openings in the mesh structure adjacent the
and said frame member being apertured at its
edges constitute projecting elements spaced
angle vertex and having projecting end portions
longitudinally of the edges of the mesh member,
of said mesh web extended therethrough and
and a frame device therefor, consisting of a sheet
oppositely exposed, and welding material en,
metal strip bent to dispose its opposite longi
tudinal edge portions in angular relation to each 10 gaged to unite said frame member with said
ing‘ the mesh to said members, as and for the
other, a plurality of opposed tongues being struck
from the central portion of the strip toward
the convex side thereof, respective projecting
portions of said mesh member being engaged be
tween respective pairs of tongues and united with
the material thereof, for the purposes described.
web at points of contact, and said frame member
having one ?ange positioned in a plane parallel
to said mesh web, and the longitudinal ex
tremities of said frame member dying substan
tially inja common line extended at right angles
from the plane of said mesh web.
_ y
8. A structural element of the character de
scribed comprising a mesh web supported within
a frame having a frame member of angular form
ing respective ?ange portions disposed at an 20 in transverse section and embodying two lateral
?anges disposed at an angle to each other, and
angle to each other, said web member being
said frame member being apertured at its angle
engaged between the ?ange portions at the
vertex and having projecting end portions of
vertex of the frame element, and said frame ele
said mesh web extended therethrough and op
ment being formed with a multiplicity of longi
3. A structural element comprising a web mem~
ber of ?exible material and a frame element
therefor comprising an elongated member hav
tudinally spaced openings at said vertex, said -' positely exposed, and welding material engaged
to unite said frame member with said web at
web member being a mesh structure with pro
jecting portions extended through said openings
points of contact, and said mesh web being ex
projecting portions of the mesh.
sheet or web, the elements of which bounding
openings in the mesh structure adjacent the
tended from the convex side of the frame mem
and the ends of the mesh elements exposed at
ber and located in a plane equally bisecting the
a side of the frame element, and weld material
engaged and united with the frame element at 30 angle of said ?anges.
9. A structural member comprising a mesh
the vertex of the angle and surrounding said
4. The structure of claim 3 in which the ends
of said mesh element are exposed at the concave
side of the frame member.
5. A structural member comprising a mesh web
to be supported within a frame, having a frame
element consisting of flat bar members with
edges constitute projecting elements spaced
longitudinally of the edges of the mesh mem
ber, and a frame element therefor, consisting of
two elongated lateral members having ?ange
portions arranged in angular relation to each
other, and said frame element including at least
longitudinal edge portions disposed in angular
relation to each other and receiving edge portions 40 one elongated member having a deformed ?ange
portion de?ned by projecting sections and sec
of said Web therebetween, said frame element
tions receding therefrom said projecting sections
including at least one bar member disposed at
contacting the opposite elongated member at
an angle to said mesh Web, welding material at
the angle vertex formed by said ?anges so that
contacting portions of said bar members and
mesh web, and said welding material being lo 45 openings are formed between said members, re
spective projecting portions of said mesh being
cated at a side of said frame element opposite
engaged in said openings, and welding material
the body of said mesh web.
to unite the mesh and said members,
6. The structure of claim 5 in which said bar
as and for the purposes described.
members are positioned at an angle and in a
plane parallel to said mesh web respectively.
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