US3158236A

US3158236A - Fire resistant studs

Info

Publication number: US3158236A
Application number: US264513A
Authority: US
Inventors: Henry P Caligiuri
Original assignee: Individual
Current assignee: Individual
Priority date: 1963-03-12
Filing date: 1963-03-12
Publication date: 1964-11-24
Anticipated expiration: 1981-11-24

Description

Nov. 24, 1964 H. P. cALlGlURl 3,158,236

FIRE RESISTANT sTUDs Filed March l2, 1963 United States Patent O Heut This invention relates to studs used in the preparation of room dividers and partitions. More specifically it relates to studs that eliminate transmission of llame and smoke from one roorn to another.

ln conventional partitions between rooms in factories, salesrooms and the like, slotted studs are used in vertically disposed position in lieu of the conventional lumbei' 2 by 4 of the building trade.

The studs for formation of conventional partition walls are made of sheet metal and are of rectangular two inches by four inches in cross-section. These studs are provided with at least one row of linearly disposed apertures or" suitable rectangular configuration on each of the four faces. The slots on the nar-row face of the studs are eX- posed to the atmosphere between the dry wall and me used `to engage the hooks of hangers used for display shelves and the like.

A serious disadvantage of these slotted steel studs are that they permit atmospheric communication between the rooms through the slots located on the opposed narrow faces of the stud. rl`hus where there is a tire in one room and hence on but one side of the partition, smoke and even llame can pass through these apertures of the stud into the adjoining roorn.

It is an object of this invention to provide an apertured lire resistant rnetal stud that prevents transfer of smoke and ilarne therethrough.

t is a further object to provide a hollow longitudinal stud of a rectangular cross-section having at least one removeably disposed linear iirewall therein.

It is another object to provide an apertured all metal hollow stud having non-apertured sheet metal panel means suitably disposed therein to prevent passage of smoke and darne through said stud.

lt is another object of this invention to provide a hollow linear stud of rectangular cross-section, each oi` whose four walls are provided with a plurality of apertures, having a separate slideably insertable non-apertured planar rewall disposed substantially hernietically therein thereby preventing atmospheric communication between opposing walls.

These and other obiects of this invention will become apparent upon reading the following descriptive disclosure of several embodiments thereof and as shown in the accompanying drawing in which FIG. l is a perspective view of a rectangular metal stud having a separate sheet metal firewall or tongue slideably disposed diagonally therein,

FlG. 2 is a cross-section view of a modified stud having a zig-zag firewall slideably disposed diagonally therein,

FIG. 3 is a cross-section of another modied stud having a step type iirewall therein,

FIG. 4 is a cross-section of yet another modification of this invention showing a pair of substantially U-shaped sheet steel elements disposed therein, said elements having planar Contact at the base of each of the U-shaped panel elements,

FIG. 5 is a cross-section View of another modification, being a modification of the iirewall of FlG. 4 altered to provide for insertion or hooks of lateral irl-between wall elements,

FlG. 6 is a cross-section of yet another modification showing a pair of V-shaped elements contacting each other at their apex thereof, and

3,l58,23b Patented Nov. v24, i964 Cey FIG. 7 is a view of the separator or rewall of FIG. 3 before insertion, showing the lateral outward spring like etect of each of the planar legs.

Turning now to the drawing, a steel stud 10 of rectangular cross-section is provided with a pair of opposed narrow faces ll and l2 disposed toward respective roorns and also with a pair of opposed

wide faces

13 and 14 disposed between the wall partitions l5 (FIG. 2).

The studs 10 are preferably made from sheet metal, preferably steel, but studs made of glass fiber or asbestos plastic compositions are operable.

The studs are provided with rectangular apertures i6 adapted to receive hooks disposed on shelves or other structural elements.

As shown in FIG. 1, a firewall l is provided and it is edge l is preferably slightly larger than the diagonal length of the cross-section of stud lil. Thus the panel 17 is bowed or curved slightly during insertion into the stud itl and it springs into tight contact with the stud corners upon being fully inserted therein. i

The stud llt? preferably is of butt weld construction having a butt weld line 19. However, seamless studs are also operable in this invention. f

rurning to FIG. 2, an integral single'sheet iirewall panel Z@ of unique design is provided. This panel Ztl is provided with a diagonally disposed center section 2li at each end of which there is provided a

lateral section

22 and 23 respectively. A leg 24 is provided integral with and at a right angle to section 22 and a second leg 25 is provided integral with and at a right angle to lateral section 23.

The

legs

24 and 25 of firewall 2t? are normally urged spring like outwardly, so that when the iirewall Bil is inserted into the stud l@ a tight planar sealing eilect is made between leg 24 and stud face i3 and leg 25 and stud face i4. Such a'large Contact area provides an effective seal against passage of smoke or llame. The firewall 2t? permits use of both rows of apertures on each of the stud faces i3 and 14. 1

In FlG. 3, a tirewall Btl also of single sheet construction is provided with a center lateral section 3f. of about the narrow dimension of the `stud En. The firewall 3@ is provided with an upright leg 3i integrn with vthe vcenter section 31 at one end and with a depending leg 32, integral with the center section at its other end. As shown in' FIG. 7,

legs

32 and 33 are bent to the dash lines shown when .they are inserted into the rectangular member l3- 'iid so that when the firewall 3i) is inserted in place an extra large area of hermetical Contact is made. However the use of a firewall 3i? is possible only where a pair of the non-opposed stud apertures are not to be used,

since

legs

32 and 33 are disposed over these apertures of The

bases

42 and 45 are disposed in planar area contact and preferably are suitably spot welded at suitable intervals. The legs V43 and 44 of element iii and the

legs

45 and 47 of element 4lare provided with suitable Y 3 y divergent springiness so that when the iirewall is inserted into the stud,

legs

43 and 46 engage stud wall i3 and

legs

44 and 47 engage stud wail 1d in a substantially air-tight manner.

FIG. shows use of modified U-shaped elements Sti and 5l wherein element 5@ is provided with a horizontal base 52 and `substantially vertical legs 53 and 5d secured respectively thereto. Leg 53 is provided with an integral oblique portion 53X and leg 5d is provided with a similar oblique portion 54X but disposed in an opposed urging relationship to that or' portion 53X.

Likewise element Si is provided with depending vertical legs 56 and 5'7. Leg 56 is provided with an oblique portion 56X and leg S7 is provided with a corresponding oblique portion 57X but operating in springy eifect in opposition to leg portion 56X. Preferably base 52 is spot Welded to base 55 and the welded unit is inserted into stud l@ with portion 54X and 53X moved toward one another also portion 56X moved .toward portion 57X. Thus upon insertion into stud l@ elements 53X and 56X engage wall i3 with an urging force and elements 54X and 57X engage wall 14 also with an urging force to better effect a hermetic or air tight seal therebetween.

FIG. 6 shows a cross-section of yet` another two piece firewall or separator wherein each sheet metal element is provided with a V-shape, The rewall of FIG. 6 cornprises a first V-shaped element 6i) having legs di and 62 and a second V-shaped element 63 having

legs

64 and 65. The elements 66 and 6i engage one another in linear contact at their respective apiees.

Legs

61 and 62 are normally slightly more divergent beyond that necessary to merely touch

walls

13 and 14. Similarly legs 6d and 65 are provided for a spring-like seizure of walls 13 and 1d by making

legs

64 and 65 slightly more divergent 4 than necessary to eifect mere touching contact with said walls.

Thus all separators or firewalls of this invention are preferably provided with means for eifecting a spring-like seizure to the stud 19 so that a substantially hermetic seal is made between the separator and the stud.

This invention has been described with the use of several illustrative examples or embodiments but it is not to be limited to these illustrations.

I claim:

l. As an article of manufacture a tubular integral sheet metal partition stud for separating rooms, having aper-V tures in the opposing sides thereof and a planar, nonapertured, ilexible removeably disposed firewall disposed substantially diagonally-between and engaging in her1neti cally sealed relationship said opposing sides, said planar iirewall being of a slightly larger dimension than the diagonal dimension of the stud so that the rewall is bent when inserted into said stud and upon release of the bent shape a spring tension engagement of said iirewall and said stud is obtained.

2. The article of manufacture of claim l wherein the planar firewall is provided with angularly disposed planar portions adapted to seat in area planar relationship with the respective sides of said stud.

References Cited by the Examiner FOREIGN PATENTS 2/47 Italy. 1/47 France.

Claims

1. AS AN ARTICLE OF MANUFACTURE A TUBULAR INTEGRAL SHEET METAL PARTITION STUD FOR SEPARATING ROOMS, HAVING APERTURES IN THE OPPOSING SIDES THEREOF AND A PLANAR, NONAPERTURED, FLEXIBLE REMOVEABLY DISPOSED FIREWALL DISPOSED SUBSTANTIALLY DIAGONALLY BETWEEN AND ENGAGING IN HERMETICALLY SEALED RELATIONSHIP SAID OPPOSING SIDES, SAID PLANAR FIREWALL BEING OF A SLIGHTLY LARGER DIMENSION THAN THE DIAGONAL DIMENSION OF THE STUD SO THAT THE FIREWALL IS BENT WHEN INSERTED INTO SAID STUD AND UPON RELEASE OF THE BENT SHAPE A SPRING TENSION ENGAGEMENT OF SAID FIREWALL AND SAID STUD IS OBTAINED.