US3451179A - Screed support - Google Patents

Description

N. A. KENDZIA scnnnn SUPPORT Filed May 4, 1967 June 24, 19 69 l VEN'TOR Norbert A. Kendzlo United States Patent 3,451,179 StCRElElD SUPPORT Norbert A. Kendzia, 4021 NE. 31st Ave., Lighthouse Point, Fla. 33064 Filed May 4, 1967, Ser. No. 636,045 Int. Cl. E04c 5/16; E04]: 1/16, 5/32 U.S. Cl. 52370 3 Claims ABSTRACT OF THE DISCLOSURE A body of sheet metal is bent to form a horizontally extending portion for seating engagement with the top of a stake driven into the ground. At one edge of the horizontal portion is provided an upwardly extending portion formed to provide a seat for a screed pipe or rod. This seat extends down to the horizontal portion so that the screed pipe rests on the horizontal portion which in turn rests on top of the stake. At the other edge is a downwardly extending portion which is cut horizontally to provide a pair of wings that are bent around the stake to hold the support in position on the stake.

As is well known to those versed in the art, in the laying of concrete floors it is customary to drive stakes into the ground, the tops of which are level with each other or may be aligned to a certain specified grade, and then to lay strips of material, called screeds, on top of the stakes. The concrete is then poured around the stakes and the screeds to just cover the screeds making it possible to make the resultant floor level or to a certain grade throughout the area. The more common screeds and support may comprise iron pipes which are supported on top of wood stakes and held in place by nails driven into the stakes on each side of the pipe. Metallic screed supports have also been proposed as shown in Patents 1,664,370; 1,852,673; 1,894,392; 2,319,526; 2,551,826 and 2,867,041.

In all instances the devices of the cited patents were relatively expensive to make and required a degree of adjustment that entailed a considerable amount of skill. In addition they could lose their adjustment and result in the screeds being supported at different heights.

By the present invention a screed support has been provided which is exceeding cheap to make, is easy to install by persons of minimum experience and does not require adjustment.

Still other advantages of the invention and the invention itself will become more apparent from the following description of an embodiment thereof which is illustrated by the accompanying drawings and forms a part of this specification.

In the drawings:

FIG. 1 is an isometric view of a screed support of the invention;

FIG. 2 is a side elevational view thereof in place on the end of a stake with a fragment of screed pipe shown in position; and

FIG. 3 is an end view of the screed of FIG. 2 with a stake shown in fragment in the ground.

As best shown in FIG. 1, the screed support is made from a unitary sheet of metal bent into substantially Z shape and comprises a horizontally extending planar base from one edge of which a vertical screed guiding wall 12 rises, said wall being formed with a downwardly extending semi-circular recess from its upper edge to provide a screed seat 14. The opposite edge is formed with a flange 16 extending downwardly at right angles to the base. The upper portion of the flange 16 is co-extensive with the base. Spaced from the base, a pair of Wings 160 and 16d struck out, as indicated at 16a and 16b, which extend in opposite directions from a center portion 16:? which extends downward and is in the same plane as the flange 16. The wings may have a slight bend, from the 3,451,179 Patented June 24, 1969 part 16!: as indicated by the lines 16]. By providing a slight bend only, it is possible to stack a considerable number for shipping purposes.

In the use of the device, a plurality of stakes 20 are driven into the ground at spaced intervals. These stakes may be made of ordinary concrete reinforcement rod or other metallic rod or tubes. Metal is preferred in most localities because these are not subject to attack by termites or other vermin. The stakes are so driven that their tops are at the same height above the ground or to a predetermined grade line as determined by a suitable surveyors level.

Next each of the screed supports is placed with the planar base 10 on the top of a stake 20 and with the portion 16 extending alongside the stake. Then the wings 16c and 16d are bent and wrapped around the stake. The position the device takes is best shown in FIGS. 2 and 3. Then the seats 14 may be aligned in the desired direction by simply turning the supports on top of the stakes and the screed pipe then set in the seats 14.

It will be noted that since the base 10 sets on top of the stake a good support is provided for the screed pipe, which actually sets on the base 10 and is held against falling off by the parts 12a which cradle the pipe. Since these parts merge with the base at a right angle they provide ample lateral support for the screed pipe and also provide rigidity for the base 10 on opposite sides of the stake. The angular portion defined by the base 10 and flange 16 also provides a stiffening eifect for the other edge of the base preventing it from bending although the bending is minimal because the screed in effect is held in position on top of the stake. When the wings or tongues 16b-16c are bent around the stake the device is secured on the stake but not so tightly that the entire device cannot be rotated to provide the desired alignment for the seats 14.

It is apparent that the device can be made from sheet metal of relatively cheap stock by very simple dies. It will also be apparent that the devices may be stacked to gether and thus be shipped in large quantities in relatively small packages.

I claim:

1. A screed support comprising a unitary substantially Z-shaped sheet metal structure having a base portion adapted to rest on the end of a stake, a screed guiding wall member extending upward from one edge of said base, a stake engaging member extending downward from the opposite edge of said base, said upwardly extending member terminating at an upper edge having a screed engaging recess extending inwardly from the upper edge with a central portion that is level with the base, said downwardly extending member including a struck out wing for wrapping around the stake.

2. A device as described in claim 1 wherein said downwardly extending member has a pair of struck out wings extending in opposite directions arranged to be wrapped around the stake from opposite directions.

3. A device as described in claim 2 wherein a base reinforcing portion is provided on said downwardly extending member between said base and said wings.

References Cited UNITED STATES PATENTS 1,894,392 1/1933 Bergstrand 52678 2,317,125 4/1943 Barnett 28720.95 2,331,949 10/1943 Whiteman -52--678 2,700,457 1/1955 Munroe 2872O.95 3,230,626 1/1966 Berrien 52155 X ALFRED C. PERHAM, Primary Examiner.

U.S. Cl. X.R. 52155, 677

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