US2902742A - Side form for concrete pavement - Google Patents

Description

Sept. 8, 1959 M. A. MATICH SIDE FORM FOR CONCRETE PAVEMENT Filed July 26, 1954 United States Patent SIDE FORM FOR CONCRETE PAVEMENT Martin A. Matich, Colton, Calif., assignor to Matich Brothers, Colton, Calif., a partnership Application July 26, 1954, Serial No. 445,755

6 Claims. (Cl. 25-118) This invention relates to an improved means for constructing concrete roads and pavements.

In the construction of concrete roads or pavements it is the general practice to form a plurality of separate lanes and to bind same together by means of metallic dowels.

It is an object of this invention to provide a means for retaining such a dowel inserted into one of the concrete slabs or lanes.

It is a further object of this invention to provide a means for inserting a dowel retaining means in a concrete slab or lane without defacing or otherwise injuring the road forms.

It is a further object of this invention to provide a means for inserting an inexpensive dowel retaining member into a concrete slab or lane so that there will be no interference with the subgrade preparation of the adjacent slabs.

Other objects and advantages will be readily apparent from the following description:

Figure 1 is a perspective view of a form embodying this invention.

Figure 2 is a section taken along line 2-2 of Figure 1.

Figure 3 is a section taken along line 3--3 of Figure 2.

Figure 4 is a perspective of the dowel retaining means button.

Figure 5 is a partial section of the dowel inserted into the dowel retaining means.

After a section upon which the concrete is to be poured has been subgraded as at and the form 12 is positioned the dowel retaining means is positioned. The form 12 is of any conventional type well known to those skilled in the art and modified only by providing a plurality of buttons 14 being welded or otherwise suitably fixed thereon and spaced from one another along the surface facing the subgrading.

The dowel retaining means comprises a hollow tube 16 which receives the button 14 in one extremity and has the other extremity closed as by tapered end 18. The end 18 of tube 16 is supported by chair 20.

The chair 20 has a loop 22 at its upper end which receives tube 16 and a pair of legs 24 and 26 which diverge from one another into horizontal sections 28 and 30 which may be flush on subgrading 10 and have downwardly projecting spikes 32 and 34 which are driven into the subgrading to support the chair 20.

After the device has thus been assembled the concrete lane or slab is poured. After a proper curing period the form 12 is removed carrying buttons 14 therewith and leaving the dowel retaining tubes embedded in the concrete.

The adjacent slab may then be subgraded without rbstruction. After subgrading the metallic dowel 36 (see Figure 5) is inserted into tube 16 and then the concrete is poured for said adjacent slab, the dowels and tubes binding the slabs or lanes together.

While what hereinbefore has been described is the preferred embodiment of this invention, it is readily apparent that alterations and modifications can be resorted to without departing from the scope of this invention and such alterations and modifications are intended to be included within the scope of the appended claims.

I claim:

1. A device for constructing concrete roads comprising: a form, a button on said form, a dowel receiving tube having one extremity receiving said button, and means independent of said form for supporting the other extremity of said tube.

2. A device for constructing concrete roads comprising: a form, a dowel receiving tube, means on said form supporting one end of said tube and means independent of said form for supporting the other end of said tube.

3. A device for constructing concrete roads comprising: a form, a hollow dowel receiving member closed at one end, means on said form receiving the open end of said dowel receiving member and means independent of said form for supporting the closed end of said member.

4. A device for constructing concrete roads comprising: a form, a hollow tube closed at one extremity, a projection on said form receiving the open extremity of said tube and means independent of said form for supporting the closed extremity of said tube.

5. A device for constructing concrete roads comprising: a form, a hollow tube closed at one extremity, a projection on said form receiving the open extremity of said tube and chair means engaging the closed extremity of said tube and supporting same at the desired level.

6. A device for constructing concrete roads comprising: a form, a hollow tube closed at one extremity, a projection on said form receiving the open extremity of said tube, and a loop substantially surrounding the closed extremity of said tube and having spikes depending therefrom to enter the ground and support said tube.

References Cited in the file of this patent UNITED STATES PATENTS 1,510,517 White Oct. 7, 1924 1,674,476 Mathews June 19, 1928 1,757,196 Jacques May 6, 1930 1,880,811 Clyne Oct. 4, 1932 1,956,046 Robertson Apr. 24, 1934 2,012,590 Sarosdy Aug. 27, 1935 2,127,973 Isett Aug. 23, 1938 2,135,079 Jennings Nov. 1, 1938 2,187,912 Pierce Jan. 23, 1940 2,588,609 Blackhall Mar. 11, 1952 2,618,038 Stewart Nov. 18, 1952 2,636,426 Heltzel Apr. 28, 1953 2,745,165 Lewis May 15, 1956

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