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Патент USA US2129568

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5653i Ö, 1938.
Filed March 17, 1938
2 Sheets-Sheet 1
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Sept. 6, 1938.
c. P. DE BlAsl
Filed MaI‘Ch 17, 1938
2 Sheets-Sheet -2
Patented Sept. 6, 1938
2,129,568 I., 4`
Charles P. De Biasi, New London, Conn.
Application March 17, 193s, serial No. 196,501
2 Claims. (ci. 'v2-_122)
The present invention relates to -new and useful
improvements in screed supports for use in con
crete work and has for its primary object to pro
vide, in a manner as hereinafter set forth, a de
5 vice of this character embodying a novel con
struction, combination and arrangement of parts
Another very important object of the invention
is to provide a screed support of the aforemen
tioned character which will permit the develop
It is thought that the manner of using the in
vention will be readily apparent from a considera 10
tion of the foregoing. The first step is to nail or
otherwise secure the brackets 5 in the desired
position on any convenient portion of the form
work, such as the joist 3 in the manner shown to
Other objects of the invention are to provide
an adjustable screed support of the character de
scribed which will be comparatively simple in
construction, strong, durable, highly eiïicient and
reliable in use, comp-act and which may be manu
factured at low cost.l
All of the foregoing and still further objects
20 and advantages of the invention will become ap
parent from a study of the following specification,
taken in connection with the accompanying draw
ings wherein like characters of reference desig
nate corresponding parts throughout the sev
25 eral views, and wherein:
Figure 1 is a cross sectional view through a por
tion of a form with the concrete thereon, showing
a screed support constructed in accordance with
the present invention installed.
ing I2 the purpose of which will be presently set
The slot II is for the reception of the
whereby said device may be expeditiously and ac
curately adjusted as desired.
ment of a plane or curved concrete surface.
l Ul
On the upper portion of the post 6 and con
fined between the head 'I and the collar 8 is an
arm 9 which terminates in an upturned free end
portion I0 having formed therein a vertical slot
I I. The arm 9 is further provided with an open
Figure 2 is
stantially on
Figure 3 is
stantially on
a vertical sectional view, taken sub
the line 2-2 of Fig. 1.
a vertical sectional view, taken subthe line 3_3 of Fig. 1 but showing
a screed in use.
Figure 4 is a View in side elevation of the in
vention, the T bar being shown in cross section.
Figure 5 is a top plan view of the invention.
Figure 6 is a detail view in top plan of the bar
receiving arm.
Referring now to the drawings in detail, it will
be seen that the reference numeral I designates
generally a portion of a form.` The form work
I comprises, as usual, the sheeting 2 mounted on
horizontal joists 3, etc. The reference numeral 4
45 designates concrete on the form I.
The embodiment of the present invention which
has been illustrated comprises an angular metal
lic bracket 5 which is firmly secured in position`
on one of the joists 3 of the form work I in any
50 suitable manner, as by nailing.
mounted for vertical adjustment in the bracket
5 is a removable supporting rod or post 6. On its
upper end, the post 6 is provided with a head l.
In spaced relation below the head -I, a collar 8
55 is provided on the post 6.
depending portion of a metallic T bar I3.
advantage in Fig. 1 of the drawings. The eleva
tion at which the bracket 5 should be secured
varies in accordance with the thickness of the
concrete. An opening is then drilled in the form
sheeting 2 through which the post 6 is inserted to»
be threadedly engaged in the opening which is
provided therefor in the bracket 5. After enough
of the posts 6 have been mounted in positionin
this manner the T bar I3 is mounted in the alined
slots II of the arms 9. As indicated in Figs. 2
and 3 of the drawings, two rows of the posts 6 25
are erected in the manner for supporting two
of the T bars I3 in spaced parallelism. In
practice, it has been found advisable to mount
the T bars I3 approximately one-quarter of an
inch higher than the theoretical grade of the con 30
crete as the formsI to which the supports are at
tached usually settle. After a suiiicient quantity
of concerte has been placed on the form I the
threaded posts 6 are adjusted vertically in the
brackets 5 in a manner to bring the T bars I3 to
the desired grade, either up or down. 'I'he posts 6
may be conveniently adjusted by simply applying
a wrench or other tool to the heads ‘I of said posts.
Aftera few feet of the T barsy I3 have been
brought to the desired grade, the concrete can be
screeded to an exact surface. In Fig. 3 of the
drawings, the reference numeral I4 designates a
conventional hand screed. After the screeding
operation has been completed the T bars I3 are
removed, also the posts 6. The openings left by
these removals are then gone over by the finishers
in the usual manner. By inserting wire through
the openings I2 in the arms 9 the T bars I3 may
be secured tightly in position. This is particular
ly desirable when. a curve or crown is to be put 50
in the T bars I3. The construction and ar
rangement is such that the T bars I3 may be
sprung to any desired curvature.
A crown or
vertical curve may also be put in the screed.
It is believed that the many advantages of an 55
adjustable screed support constructed in accord
ance with the present invention will be readily
understood and although a preferred embodiment
of the invention is as illustrated and described, it
is to be understood that changes in the details
removably mounted on the arm and engaged in
of construction and in the combination and ar
rangement of parts may be resorted to which will
said bracket, a head on the upper end of said
post, a collar on the post in spaced relation below
fall within the scope of the invention as claimed.
the head, an arm journalled on the post between
1. A screed support comprising a vertically ad
justable post, spaced enlargements on the upper
the head and the collar for swinging movement
in a horizontal plane, said arm having a vertical
slot in its free end portion, and a T bar remov~
ably mounted on the arm and including a depend
portion of said post, an arm mounted for swing
ing movement in a horizontal plane on the post
between the enlargements, said arm having a.
15 vertical slot in its free end portion, and a T bar
the slot.
2. A screed support of the class described com
prislng a bracket mounted on a support, a post
threadedly mounted for vertical adjustment in
ing portion engaged in the slot.
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