US2227713A - Screed holder - Google Patents

Description

J. 7, 1941. c; H 1 2,227,713

S CREED HOLDER Filed Nov. 4, 1938* Patentel Jan. 7, 1941 UNITED STATES PATENT- OFFICE SCREED HOLDER Clyde Powell Higgins, Houston, Tex. Application November 4, 1938, Serial No. 238,861

3 Claims.

My Invention relates to screed supporting means.

An important object of my invention is to provide a means for properly positioning the screeds upon which the flnished flooring is laid.

A further object of my invention is to provide a means for positioning the screeds that will be easily accessible from above.

A still further object of my invention is to provide a screed positioning device that is simple in construction, eilicient in operation, and extremely inexpensive to manufacture.

Other objects and advantages of my invention will be apparent during the course of the following description.

In the accompanying drawing, forming a part of this speciflcation, and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a side elevation, showing parts in section, of a device embodying my invention,

Figure 2 is a front elevation of the same,

Figure 3 ls a bottom plan view of my device, and

. Figure 4 is a side elevation of the same.

In the drawing, wherein for the purpose of illustration is shown a preferred embodiment of my invention, the numeral 5 designates a substantially circular plate having diametrically opposed flanges 6 extending therefrom, adapted to be bent upwardly and fastened to the wooden screed 1 by means of nails 8 or the like. Openings 5 are provided in the plate 5 to permit a suitable tool attached to a carpenters brace or the like to be inserted therein and the plate 5 rotated to a requisite level. Depending centrally from the plate is a screw-threaded shank 9 which is secured to the plate by means of a rivet lo or the like. The lower part of the shank 9 is screw threaded and is provided with a nut II screw threadedly engaged thereon.

The operation of my device is as follows:

In the construction of both concrete and wooden buildings, it is customary to provide a subiioor of concrete over which the flnishing floor is laid. The finishing floor is carried by and nailed to screeds supported above the concrete underfloor. The rough floor, however, is not leveled with any degree of accuracy when laid and it therefore becomes necessary to accurately level the screeds upon which the finishing floor is laid. This is most frequently done by wedgng blocks beneath the screed or by filling in beneath the same with plaster or concrete so that the upper faces thereof are at the requisite level. This is a difiicult and arduous task and is rareiy accompiished with any great degree of success.

In my invention, I coat the screw-threaded shank 9 with a heavy coating l2 of caulking eompound. grease, pitch or any substance which will permit the concrete to harden therearound and not adhere to the outer surface thereof. The nut ll is left clean of any coating in order to permit the concrete to harden therearound and securely hold the same against displaoement. o The screed holding devices are embedded in the concrete at intervals sufiicient to properly hold the screeds that are to be supported thereby. The screeds 1 are placed on the circular plate 5 and the letter rotated until the screeds are po- 15 sitioned at the requisite level. The rotating of the shank 9 is easily aflected due to the protective coating .I2 therearound. When the screeds have been properly leveled. the flanges 6, which are of a lesser thickness than the circular plate 20 5, may be bent upwardly along the sides of the screeds i and firmly secured thereto. When this has been accomplished, the flnished flooring I3 is then laid in an accurate and eflicient manner.

It is to be understood that the form of my in- .25 vention herewith shown and described is to be taken asa preferred example of the same and various changes in the size, shape and arrangement of parts may be resorted to without departing from the spirit of my Invention or the scope of 30 the appended claims.

Having thus described my invention. I claim:

1. In a building construction, a composite concrete floor, a nut immovably embedded a substantia1 distance beneath the surface of the con- 35 crete, a screed supporting member having flanges adapted to engage the sides of the said screed, and a screw-threaded shank depending from the screed supporting member and screw-threadedly engaging said nut, said shank being coated With 4o a substance to prevent the bonding of the concrete therewith and to permit the shank to be freely rotatable after the concrete has set.

2. A screed posltioner comprising a nut firmly embedded in the concrete base floor of a build- 45 ing, a screed supportingmember having means integral therewith to secure the said screed thereon, and a screw-threaded shank attached to said screed supporting member and screw-threadedly engaged to said nut, said shank being coated with 50 lubricant to prevent the bonding of the concrete therewith and to permit the shank to be freely rotatable after the concrete has set.

3. In a building construction including a composite concrete floor, a nut embedded a substah- 55 ahank dependinz from the base and e the nut. said slmnk being coated with a suitable lubricant to prevent the hondinz of the concrete therewith and to peflnlt the shank to be ireely rotatable within the said nui; after the concrete has 5 set.

CLYDE P. HIGGINS.

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