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Патент USA US2117560

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' May 17, 1938.
w. A. JENNINGS
'
2,1 17,560
MOLD FORM APPARATUS
Filed May 27, 1933
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May 17, 1938.
2,117,560
W. A. JENNINGS
MOLD FORM APPARATUS
Filed May 27, 1933
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Patented May 17, 1938
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UNITED STATES PATENT OFFEQE
2,117,560
MOLD FORM APPARATUS
William Allen Jennings, Des Moines, Iowa, as
slgnor to Economy Forms Company,
Moines, Iowa, a corporation of Iowa
Des
Application May 2'7, 1933, Serial No. 673,214
4 Claims.
(G1. 25-131)
My invention relates to that class of forms for
concrete structures in which there is employed a
number of panels detachably connected with
each other and detachably connected to struc‘tural wooden beams for supporting the forms in
pointed out in my claims, and illustrated in the
accompanying drawings, in which:
Figure 1 shows an outer face view of a number
of panels embodying my invention supported in
position by structural beams and illustrating 5,;
their proper positions.
the means for alining and holding into alinement
,
rl‘he objects of my invention are to provide
metal panels of this class of simple, durable and
inexpensive construction and of light weight, and
10 so constructed and arranged that they are readily and easily assembled and perfectly alined so
that the resultant concrete wall formed by them
will be smooth and free from offsets and irregularities such as has been the result of the use of
15, other mold panels now in common use.
A further object is to provide improved, simpli-
adjacent side by side panels and for locking the
?anges of the adjacent side. panels together.
Figure 2 shows an enlarged detail sectional
view on the line A—A of Figure 1.
10-1;
Figure 3 shows an outer face View of one of my
improved panels.
Figure ll shows an enlarged detail view of the
outer face of one corner of a panel and illustrat
ing my improved alining device with a locking 15,;
pin in position for holding the alining pin.
?eld and economical means for detachably con-
. Figure‘ 5 shows a sectional view on the line
necting together the panels of two opposed form
5—-5 of Figure 4.
walls by means of spacing bars extending through
the panels and the concrete wall.
20
More speci?cally in this connection it is my
object to provide spacing bars having straight
smooth parallel surfaces and so arranged that
during the removal of the panels from the con25 Crete Wall 1311656 Spacing bars may be readily
and easily withdrawn through the concrete wall
without chipping or marring the adjacent surfaces, so that the small openings left in the wall
by the spacing bars may be readily and easily
30 covered over smoothly with concrete; and further
in this connection it is my object to provide improved and simpli?ed means for accurately and
quickly securing the panels to the ends of the
spacing bars in properly spaced positions and for
35 quickly and easily removing the panels from the
spacing bars.
Figure 6 shows a sectional view of a portion
of my improved panel illustrating the closure. 20.,
device for the slots for receiving the spacing
bars.
Figure 7 shows a sectional view on the line
Iii-i4 of Figure 6; and
Figure 8 shows a detail perspective view of the 25;‘
closure device.
Referring to the accompanying drawings it will
be seen that my improved panel is formed of a
?at sheet metal body portion 23 with all four
marginal edges 2i thereof bent outwardly at 30,‘
right angles and welded together at their cor
hers.
This operation of bending'these marginal edges
H is in practice accomplished with suitable form
ing dies so that each panel, and particularly the 35 ,
marginal edges thereof, are exact duplicates of
A further Object is '00 Provide an improved
DaIlBl in Which the entire panel is made of relatively thin sheet metal and its marginal edges
40 are formed of the same metal bent at right
each other, and by this means I obtain a rela
tively strong‘ and rigid structure, and at the same
time provide marginal edges exactly alike in
each of the series of panels with the result that 40‘
angles and reinforced in such manner as to insure perfect alinement 0f the inner faces of the
panels When assembled in a m01d form; and in
this connection it is my object to provide a mold
45 panel of this class in which the panel and its
when assembled to form a mold wall there will
be no rough or uneven surfaces at the outer sur
reinforcing bars and marginal edges may all be
readily and quickly manufactured with the use
of dies and formers, and whereby the panels and
panel alining and locking devices may be used
50 interchangeably and produce smooth concrete
walls in all instances.
My invention consists in the construction, arrangement and combination of the various parts
of the device, whereby the objects contemplated
55 are attained, as hereinafter more fully set forth,
faces of the ?anges, and the outer faces of all
panels will be ?ush, whereas with those now in
common use where structural bars are secured 45
to the outer edges of the panel body to form mar
ginal edges, the edges and faces of the panels
are frequently out of line, resulting in rough and
uneven concrete Walls.
Another advantage obtained by the. use of the 50 ,
out-turned sheet metal flanges is that before
turning them the necessary alining and locking
openings or perforations may be formed therein
by gang punches, and each ?ange is provided
with the same openings from the samedies so 551‘
2
2,117,560
that when assembled in side by side positions
these openings will accurately aline.
and a series of openings 23 for the devices for
The spacing bar indicated by the numeral 35
is made of a piece of straight ?at metal and has
the openings 32 at its ends. This bar is inserted
clamping the forms to the structural beams,or for
through the openings 3| in two opposed panels,
alining pins and also the locks for holding to
gether the marginal ?anges of two adjacent
placed in position, the two panels are accurately
panels.
spaced apart.
These openings as illustrated in Figure 2 com
prise a series of openings 22 for the alining pins
'10
.
In addition to the marginal edges 2| I provide
in the upright central portion of each panel two
spaced apart ?anges 215, each being made of sheet
metal in the same manner as the rib 25 shown in
Figure 5, and in addition thereto I provide a se
15 ries of reinforcing ribs 26 extending from the
?anges Zl to the ribs 25. All of these ?anges and
ribs just described are formed as clearly shown in
Figure 5 by bending the outer edges thereof in
wardly at 21 and extending the openings 23
20 through both layers of sheet metal ribs. This
forms a rigid construction, is easily made, and
makes the metal surrounding the openings 23
thick enough to withstand long continued use
25
spacing bar in accurately spaced position to the
panel.
without change or deterioration.
I have found that panels as constructed can
be readily made by machinery so that they are
perfect duplicates of each other and at the same
time the weight and expense is greatly reduced,
making them easier to handle and install.
and when the alining and locking pins 33 are
One of the substantial advantages of my inven 10
tion is in connection with these spacing bars, and
when the concrete wall has partly set and hard
ened, and it is desired to remove the panels, the
locking pins are removed and then the operator
may, by inserting a proper tool in the opening 32 15
in one end of the spacing bar, withdraw the
spacing bar through the concrete Wall, and since
this spacing bar is straight and smooth it may be
withdrawn without marring the wall, and the
small openings left in the wall may be readily 20
and easily ?lled with concrete or other material,
leaving smooth walls without metal in it which
will rust and corrode and otherwise mar the Wall
surface.
It will be noted upon reference to Figure 3 that 25
I have provided a number of these slots 3!, and
in many instances a less number of spacing bars
35 are employed. It is, therefore, desirable that
means be provided for closing these openings 3i,
panels and permanently holding them in alined
which are not in use, and for this purpose I have 30
provided a block 31 secured to the outer face of
positions, I have provided on each side of each
panel a brace 28 secured to the panel and to the
block has recesses 38 formed at each end between
80'
For the purpose of alining two side by side
adjacent ?ange and rib, and having therein two
85 openings, one to receive the pin as shown at the
top in Figure 5, and the other indicated by the
numeral 29 to receive a locking pin.
Adjacent to and spaced apart from the rib 28
is a lug 36 having an opening therein to receive
40 a locking pin as shown in Figure 4. In the space
between each of the ribs 23 and the adjacent
flange 2! I provide a slot St to receive a spacing
bar hereinafter described, which spacing bar, as
shown in Figure 5, has an opening 32 at each end.
45; In assembling two adjacent side by side panels,
I place them in adjacent positions with their
?anges 2| together, and then accurately aline
them by inserting an alining pin 33 having a
tapered point 315 and a right angle handle 35.
50 This pin is passed through the opening in the
rib 23 through the opening in the spacing bar
and then through the opening 22 in the ?ange
2i, and then through the corresponding opening
in the adjacent ?ange 29.
In this manner the
65 two flanges of the adjoining panels are accurately
brought into and held in alinernent.
~
The handles 35 project outwardly from the
panels, so they may be easily manipulated with
the operator’s hand, and by turning them it is
to enter
60 .very easy to cause the tapered end
and bring to alinement the two panels, and then
when the pin is further pushed through the panels
and around the body portion, the pins accurately
?t the openings in the panels and hold them in
alinement. Then the handle 35 may be pushed
down against the outer face of the panel where
it will be held against longitudinal movement by
the lug 30.
'
In some instances it is desirable to lock this
70 *handle in said position, and for this purpose I
have provided an opening in the lug 3D and the
opening 29 in the rib 2G to receive a similar pin
to the one 33, and this pin when placed in said
openings, as shown in Figure 4, locks the handle
35 in position, and at the same time locks the
the panel adjacent to each of said slots.
This
the panel and the adjacent portion of the block,
and the block is formed with a slot 38 extending 35
completely through it in line with the slot 3%.
The closure plate as illustrated in Figure 8 is
made of spring metal and comprises a ?at body
portion :30 of the size and shape of the slot 31,
and outwardly turned end portions provided with
lugs 4 l .
These closure plates are inserted through
the openings 39 in the blocks 31 and the lugs iii
are bent inwardly during this operation, and
then spring outwardly into the recess 38 where
they are yieldingly held in position for forming
a smooth ?at closure for the slots 3i. They may
be removed from the blocks and slots by simply
pressing inwardly upon the outer faces of the
closure plates.
In practical use with my improved mold form, 50
I ?nd that by making the panels with their mar
ginal edges bent at right angles to form reinforc
ing flanges, and by bending the edges of the
?anges inwardly against the bodies of the ?anges,
and then by forming the openings in these ?anges
with gang punches, I provide a panel structure of
inexpensive construction and of light weight, and
which when assembled with other panels in a
mold form will produce ?nished concrete walls
so smooth and uniform that they need not be re 60
modeled or repaired after the concrete forms have
been removed, and are ready to receive paint or
other ?nishing material.
I have also found that with my improved panel
65
alining device an operator may very readily and
quickly insert the alining pins, bring the panels
to alined position, and ?rmly hold them in such
position.
After the operator has determined what num 70
ber of spacing bars are to be employed on each
panel, and has placed them in position, he can
readily and quickly close the spacing bar openings
by inserting from the outer faces of the panels
the closure plates for these openings, and these 75
3
2,117,560
closure plates will be held in position ?rmly
enough for practical purposes.
I claim as my invention:
1. In a form device of the class described, the
combination of a form panel formed with a
spacing bar slot, and means for sealing said
slot, comprising a block secured to the outer
face of the panel and formed with notches on
opposite sides of its interior adjacent said slot,
and a flexible sealing plate shaped to ?ll said
slot and having shoulders at opposite sides shaped
to enter said notches.
2. In a form device of the class described, the
combination of a form panel formed with a spac
15 ing bar slot, and means for sealing said slot, com
prising a block secured to the outer face of the
panel and formed with notches on opposite sides of
its interior adjacent said slot, and a ?exible
sealing plate shaped to ?ll said slot and having
20 shoulders at opposite sides shaped to enter said
notches, said block being formed with a slot in
alinement with the slot in the panel shaped to
‘admit said ?exible sealing plate from the outer
face of the panel.
3. In a mold form apparatus, the combination
25
of a mold form panel having a slot formed there
in, two spaced apart ?anges ?xed to and ex
tended outwardly from the panel on opposite sides
of said slot and being formed with aligned open
80 ings, a spacing bar extended through said slot
and having an opening therein, a pin extended
through the openings in the ?anges and in the
spacing bar, and having a handle extended at
right angles relative to the pin, and a third ?ange
on the panel so positioned as to receive said handle
between it and the adjacent ?ange, when the
handle is turned to position adjacent the outer
face of the panel to thereby prevent withdrawal
of the pin.
‘
4. In a mold form apparatus, the combination 10
of a mold form panel having a slot formed there
in, two spaced apart ?anges ?xed to and ex
tended outwardly from the panel on opposite sides
of said slot and being formed with aligned open
ings, a spacing bar extended through said slot 15
and having an opening therein, a pin extended
through the openings in the ?anges and in the
spacing bar, and having a handle extended at
right angles relative to the pin, and a third ?ange
on the panel so positioned as to receive said 20
handle between it and the adjacent ?ange, when
the handle is turned to position adjacent the outer
face of the panel to thereby prevent withdrawal
of the pin, said third ?ange and the adjacent
?ange having aligned openings therein and a 25
second pin passed through said last mentioned
opening and over said handle to lock the handle
in its position adjacent the panel.
WILLIAM ALLEN JENNINGS.
30
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