US1925163A - Fastener for flooring - Google Patents

Description

Sept. 5, 1933. 5. J. WOLFSON FASTENER FOR FLOORING Filed Oct. 20, 1950 3mm cit/T Wo/fSo/i 0 parquet he Patented Sept. 5, 1933 FASTENER FOR FLOORING Samuel J. Wclfson, Everett, Mass, assignor, by

direct mesne assignments, to Concrete-' Wood Floor Clip Company, Inc, Charlestown, Mass, a corporation of Massachusetts Application October 24), 1930. Serial No. 490,071

4 Claims.

This application is a continuation in part of my prior application for patent, Serial Number 454,- 047, filed May 26, 1930.

The present invention relates, in its broader aspects, to means for fastening together a plurality of strips or the like of wood. More particularly, the invention has especial relation to fasteners for wood flooring, and specifically to that type of wood flooring commonly designated ing.

The pr iary object of the present invention is to provide simple, novel and eiiicient means for holding the several component strips or parts of a composite wooden structure, such as a unit of par uetry, securely together.

objects are to provide fasteners of the character mentioned which shall be cheaply an quickly manufactured, and which shall be of application to the objects with which they are intended to coact with a minimum of labor and effort, but which shall nevertheless satisfactorily their intended functions.

To the accomplishment of these objects, and such others may hereinafter appear, the various features of the present invention relate to certain devices, combinations, and arrangements of parts fully set forth hereinafter, the advantages of which will be readily apparent to those skilled in the to which this invention pertains.

The various features of th invention will be best understood from an inspection of the accompanying sheet of drawing illustrating several preferred forms of th invention.

In the said drawing,

Fig. l is a top plan view of a unit of parquetry flooring embodying the present invention;

Fig. 2 is a partial end view of one of the parquetry units, looking in the direction of the arrow A in Fig. 1;

I Fig. 3 is a top plan view of one modification of fastener or strip-securing device;

Fig. i is a pe spective view of part of a modified form of fastener, shown as applied to a pair of strips of flooring;

Fig. 5 is a perspective View of the fastener shown in Fig. 4, and particularly illustrates the construction of the ends of the latter;

Fig. 6 is a perspective view of part of a third form of fastener, shown as applied to a pair of strips of fioorings; and

Fig. 7 is a perspective view of the fastener shown in Fig. 6.

Similar reference numerals designate similar parts throughout the several figures of drawing.

According to the present invention, each unit tastes and diiierent purposes.

of parquet flooring may preferably comprise a plurality of strips 11, 12, 13 and 14 of suitable and desirably relatively thin high-grade wood, such as maple, spruce or the like. These strips are illustrated, in Fig. l of the drawing, as being of such length and width as to form a square unit of parquetry when assembled. However, it is obvious that the number and dimensions of the several strips may be varied to suit different in order to enable the several component strips 11, l2, l3 and 14 to be securely fastened together to form a unit of parquetry, they are provided with a suitable number of transversely-extending spaced grooves of a suitable width and depth, as hereinafter explained in greater detail. The number of such grooves employed will obviously depend upon the shape and size of the unit of flooring.

Relatively thin metallic strips 16, the several edges of which are provided with saw-tooth-like projections or teeth 17, and having tonguelike ends 1'7, are adapted to be'disposed in the bottoms of the grooves 15 with the teeth of the edges biting intothe adjacent strips 11, 12, 13 and 14. In this way the several strips are effectively bound tov gether as a unit to successfully resist forces acting thereon in any direction and tending todisplace them relative to each other. 7

Each fastener strip 16 is originally transversely bent, as is shown in dotted lines in Fig. 2, so that its effective original width is equal to that of its cooperating groove 15. By hammering or otherwise exerting a pressure on the face of the strip 16 in the direction of the arrow B '(Fig. 2), the strip is flattened out and the projections or teeth on its edges are driven into biting relation with the adjacent wood strips as shown.

The edges of each unit 10 of parquetry are severally milled to provide them with grooves 18 and 19, and tongues 20, whereby the unit is en- I abled to coact with a suitably-constructed clip, as disclosed in my afore-mentioned pending application.

The grooves 15 extend upwardly to the bottom- 100511 tongues 20 is maintained, and acontinuous support is afforded to the coasting clip, afore-mentioned.

It will, of course, be understood that the intermediate portion of the strip 16 represented by produced product.

broken lines in Fig. 3, is formed with saw-toothlike projections constituting a continuation of the projections shown.

Referring now to Fig. 4 of the drawing, a second modification of fastener strip, here designated as 21, is shown in operative relationship with a pair of flooring strips 11' and 12'. According to this modification of the invention, the f astener 21 may be constructed of a substantially U-shaped strip of rigid metal.

The sides of the U-shaped strip 21 are preferably provided with a plurality of substantially contiguous teeth, projections, or corrugations 22, as clearly shown in Fig. 4. The strips 21 may preferably terminate in flat tonguelike ends 23 projecting from the base of the U portion thereof, as shown in Fig. 5. It will be understood that the intermediate portion of strip 21, represented by broken lines in Fig. 5, is preferably corrugated to correspond to the showing thereof in Fig. 4.

When this form of fastener is employed, the several units of parquetry are formed with grooves 15 of a depth equal to the depth of the grooves 15 and of a width very slightly less than the width of the fastener 21. The fasteners are forced or wedged into place in the grooves 15, and the corrugations or projections 22 bite into the Walls of the said grooves to efiectively and securely hold the several component strips 11, 12, etc., against relative displacement.

The fasteners 21 may preferably be manufactured from ordinary umbrella ribbing, which forms an efficiently rigid and relatively-cheaply t is to be understood that the projections 22, instead of being disposed at the sides of the strip 21, may be conveniently struck out from the bottom of the U to provide an equally effective fastener.

Y As in the case of the first modification, the tongues 23 of this form are adapted to take the place of those portions of tongues 20 which are cut out in the formation of grooves 15', thus preserving the continuity of the last-named tongues. According to the third form of the invention, which is illustrated in Figs. 6 and 7, the fastener 24 is constructed from a substantially rigid length of wire of suitable metal. The body of the said fastener 24 is formed along the sides thereof with teeth, projections, or corrugations 25. The ends of the fastener body may terminate in flat tongues 26, which correspond in structure and intended function to tongues 17 and 23, afore-described.

In using this simple improved form of fastener, the unit of parquetry is provided with a groove 27 substantially conforming to the shape of the fastener 24. The latter is forced into place in the said groove 2'7, and the teeth or corrugations 25 bite into the walls of the said grooves to effectively and securely hold the several component strips 11, 12', etc., against relative displacement.

While'I have shown and described several pre ferred embodiments of my device, it will be understood that various structural modifications may be made without departing from the spirit and scope of the invention as set forth in the appended claims.

I claim:

1. A fastener of the character and for the purpose described comprising a U-shaped body member, the sides of said U being corrugated, and flat tonguelike ends extending from the bottom of said U.

2. A fastener of the character and for the purpose described comprising a wire body member of substantially circular cross section, the sides of said body member being corrugated and flat tonguelike ends extending therefrom.

3. A unit of parquetry comprising a plurality of strips of flooring, a clip-supporting tongue extending from the several edges of said unit, said tongue being discontinuous, a groove in one surface of said unit, and a fastener of curved cross section wedged into said groove, the sides of said fastener being corrugated and in biting relation to said strips to positively prevent relative movement therebetween, and flat tonguelike ends on said fastener extending into said tongue and rendering the latter continuous, substantially as and for the purpose described.

4. A fastener of the character described, par-

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