US2553363A - Building construction - Google Patents

Description

y 1951 c. c. DROEGER BUILDING CONSTRUCTION Filed Nov. 9, 1945 1N VEN TOR. (19,91 6109056245;

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Patented May 1 5, 1951 UNITED STATES PATENT OFFICE BUILDING CONSTRUCTION Carl C. Droeger, Greenfield, Ind.

Application November 9, 1945, Serial No. 627,672 3 Claims. (crimp-s) Acceptable sound proofing of rooms is attained by imposed sound absorbent mats upon sound-reflecting surfaces and then covering those surfaces by perforated plates having more eye appeal than the sound absorbent mats.

The object of my invention is to provide fireproof elements facilitating the placement of the aforesaid sound absorbent and covering elements.

The accompanying drawings illustrate my. invention.

Fig. 1 is a perspective view of an embodiment of my invention;

Fig. 2 is a fragmentary vertical section through one form of the metal furring elements;

1 Fig. 3 is a horizontal section, on line 3-3, of Fig. 2;

Fig. 4 is a fragment perspective of the primary furring element shown in Figs. 2 and 3;

Fig. 5 is a fragmentary perspective of another form of the primary furring element; and

Fig. 6 is another view, similar to Figs. 4 and 5, of another form of primary furring.

In the drawings IE! indicates a partition or ceiling of fireproof material to which are attached at intervals the metal furring primary strips F by means of common anchor bolts II, P indicates strips of sound absorbent pads laid between the furring, and S indicates secondary furring strips attached to the primary furring and to which the cover sheets C are attached.

Each secondary furring strip S is formed of two parallel 2 strips l2 of light sheet metal having oppositely directed free arms I3 and I4, and an intermediate strip of metal l5 presenting a great number of screw receiving apertures and secured at its edges to the two facing arms l3, l3 of a pair of strips l2. Most conveniently, strip I 5 is ordinary woven wire screening of comparatively light weight about 2 to 3 inches wide, welded or soldered at its edges to the two facing arms of the 2 strips I2.

The primary furring is a metal channel of comparatively light weight sheet metal, the main body of which is provided at appropriate intervals with means by which the secondary furring may be easily attached thereto in such manner as to be firmly held in place. This fastening means may be any one of many forms cooperative with the free arms of the secondary furring so long as the parts I2 are firmly held laterally.

For instance, in Figs. 2 to 4, the main intermediate section of the primary furring is slitted to form an abutment lip 20 against which the intermediate section of a strip 92 may rest, and a retaining lip 2| which may be folded down over the arm l3 of an associated strip I2 of a secondary furring S when placed on a vertical or primary furring F.

In Fig. 5 the abutment comprises merely an outwardly displaced section as at to engage the mid-section of the secondary furring. In Fig. 6 the side edges of lip 20 are folded outwardly and toward each other so that a U-shaped upper end 20 of the lip engages the mid-section of the secondary furring and holds it against lateral displacement in one direction, while the bent-down lip 21 holds it in the other direction. In each instance, of course, the lip 2| cooperates with its associated strip [2 in the manner illustrated in Figs. 1 and 2.

The side arms of the primary furring channels are perforated at various points 25 to receive rods 26 which extend from one furring F to an adjacent one, so as to overlie and thus retain in position, the sound absorbent pads P such pads being of such thickness that placement of rods 26 locally compresses the pads. The rods 26 thus serve to hold vertically placed pads against vertical sagging under the force of gravity or vibration.

After the secondary furrings have been placed, the cover sheets C, which commonly are perforated at many points 30, may be readily secured in place by ordinary wood screws 3| passing through appropriate perforations 30 and taking into the reticulate element (or multiperforate) portions of the secondary furrings. When ordinary woven wire is used as an element of the secondary furring (as is preferable) the mesh of this wire should, of course, be smaller than the shanks of the screws 3| in order that the threads of the screws may establish a threaded engagement with the mesh.

Holding the Z strips of the secondary furring against lateral displacement toward each other is important because sagging of the woven wire [5 is thereby prevented and proper alignment of the finishing sheets C is assured.

I claim as my invention:

1. The combination in a non-combustible wall or ceiling of a plurality Of parallel, laterallyspaced, non-combustible primary furrings anchored thereon, sound absorbent pads arranged between adjacent pairs of said furrings, a plurality of spaced, non-combustible secondary furrings extending transversely across the primary furrings and secured thereto, each of said secondary furrings comprising a portion lying in a plane parallel with the wall or ceiling and bridging between primary furrings and provided with a multiplicity of perforations adapted to threadedly receive threaded shanks of screws, a multiperforate finish sheet overlying the aforesaid parts, and screws passing through said sheets and having thread engagement with the perforate portions of secondary furrings.

2. The combination in a non-combustible Wall or ceiling of a plurality of parallel, laterallyspaced, non-combustible primary furrings anchored thereon, sound absorbent pads arranged between adjacent pairs of said furrings, aligned apertures formed in adjacent walls of each pair of furrings upon axes parallel with the plane of such wall or ceiling and spaced therefrorna dis tance less than the normal thickness of such pads, a retaining member mounted in each associated pair of such apertures, a plurality of noncornbustible secondary furrings extending transversely across certain of said primary furrings and spaced therealong, bridging the same and secured thereto; each of said secondary furrings comprising a portion lying in a plane parallel with the wall or ceiling and capable of receiving and retaining driven fastening elements, a multiperforate finish sheet overlying the aforesaid parts, and fastening elements passing through said sheets and driven into said last-named portions of secondary furrings.

3. The combination in a non-combustible wall or ceiling or a plurality of parallel; laterallyspaced', non-combustible primar furrings anchored thereon, sound absorbent pads arranged between adjacent pairs of said furrings, aligned apertures formed in adjacent walls of each pair of furrings upon axes parallel with the plane of such wall or ceiling and spaced therefrom a distance less than the normal thickness of such pads, a retaining member mounted in each associated pair of such apertures, a, plurality of non-combustible secondary furrings extending transversely across certain of said primary furrings and spaced therealong, bridging the same and secured thereto, each of said secondary furrings comprising a portion lying in a plane parallel with the wall or ceiling and provided with a multiplicity of perforations adapted to receive driven fastening elements provided with transaxial projections, a multiperforate finish sheet overlying the aforesaid parts, and fastening elements having transaxial projections passing through said sheets and driven through the perforations of said secondary furrings.

CARL C. DROEGER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 7 1,027,641 Collins May 28, 1912 1,359,675 Davidson Nov. 23, 1920 1,845,693 Woiciechowski Feb. 16, 1932 1,968,045 Kotrbaty July 31, 1934 2,017,441 Kotrbaty Oct. 15, 1935 2,063,010 Balduf Dec. 8, 1936 2,077,713 Ross et a1 Apr. 20, 1937 2,160,794 Price May 30, 1939 2,242,834 Price May 20, 1941 2,278,822 Benz ..1 Apr. 7, 1942 2,389,622 Hensel Nov. 27, 1945

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