US 2909251 A
Description (OCR text may contain errors)
Oct. 20, 1959 N. NELssoN 2,909,251
` RUNNERS FOR NONLOAD-BEARING PARTITIONS I Filed Oct. 9, 195/6 3 Sheets-Sheet 1 www.
Oct. 20, 1959 N, NELSSON 2,909,251
` RUNNERS FOR NONLOAD-BEARING PARTITIONS s sheets-sheet 2 Filed Oct. 9, 1956 V EN TOR.
Oct. 20, 1959y N. Nl-:LssoN RUNNERS FOR NoNLoADfBR'ARING PARTITIONS I5 Sheets-Sheet 3 Filed Oct. 9, 1956 RW/Ww Iwo Wm m. INV@ lfm w. a/ Nl. WM um@ W J5 Hlmll United States Patent Otitice v 2,909,251 RUNNERS Fon NoNLoAD-BEARING PARTmoNs Nels Nelsson, Chicago, lll., assignorto United States Gypsum Company, Chicago, Ill., a corporation of Illinois tral` channel.
This invention pertains to runners for partitions and,
more particularly,l pertains to runners adapted for use in the formation of nonload-bearing partitions.
The use of channel-shaped runner members in the for- "i be employed in securing the metal or wood runners to Y the supporting ceiling and floor structures.
Despite the type of ceiling runner used, however, a moulding strip is employed in the usual partition construction to `cover the wallboard-ceiling interface from View and, thus, provide a more pleasing appearance. VIt is apparent, therefore, that in addition to the runner-Wallboard connection, a subsequent operation in which a moulding strip was applied to cover the unsightly wallboard-ceiling interface had heretofore been necessary.
It is ani object, therefore, of this invention to provide an improved ceiling runner which, because of its novel construction secures wallboard members thereto` by means of a simplewedging engagement and, thus, obviates the need for a fastening operation using such Well known means as screws, nails, etc.
It is a further object of this invention to provide an improved ceiling runner which has integral` portions thereof designed to function as moulding strips, in the normal assembledposition, between the wallboard-ceiling interfaces and, thus, eliminates the time and expense necessitated by the separate application of a moulding strip.
It is `a still further object of this invention to provide an improved ceiling runner which insures permanence of assembly and straight wall alignment, as will hereinafter be explained in greater detail. A
It is another Vobject of this invention to provide an improved iloor runner for use in conjunction with a ceiling runner which assures a secure engagement with the lower portion ofthe wallboard and whichaifords :straight alignment of the lower portion of the wallboards.
It is yet another object of this invention to Vprovide a partition construction employing novel ceilingand Vfloor runners which interlock with wall-reinforcing .stud members.
The above and other objects of this invention will become more apparent fromthe following description, accompanying drawings and `appended claims. i
In one embodiment of this invention, an elongate piec of sheet metal is rolled or bent so as toforma runner having a channel-like cross-sectional configuration. The
runner cross section comprises a maincentralchannel portion having a web joinedat either end limit with converging wall portions. The endlimits of the latter wall portions are formed integrally with anglelike portions which define channels disposed laterally of the Ymain cen7 The latter channels also possess converging walls. The wall portions of the main central channel are thus common to both the central and the laterally disposed channels. The lateral channels are of precisely the same configuration as the main central channel but have lwebs and outer wall portions of lesser dimensions.
In'the course of assembly, the web portions of the lateral channels are affixed to an overhead supporting surface. The lateral channels are thus inverted in the normal position of use. The wallboards forming the hollow partition are then inclined to facilitate insertion between the open ends of the inverted lateral channels and wedged between the free edge and limit of the outer wall portion of each inverted channel and the interfaces delined by the main channel web-wall portion junctures, upon thev wallboards assuming the vertical positions, as will hereinafter be explained inl greater detail.
The final assembly provides the visual effect of a partition having a moulding strip disposed along both wallvboard-ceiling interfaces with no fastening means,lsuch as nails and screws employed in securing the wallboards to the runner, as each wallboard is wedged in place in the runner.
In a modified partition assembly, stud members may be utilized in conjunction with the above-described ceiling runners, and iioor runners. In the latter assembly, both ceiling and iioor runners similar `to those previously described are uniformly and periodically slotted in their webportions to receive the reinforcing stud members.
j The latter studs comprise opposed pairs of parallel elongate rod members'and are preferably composed of metal. The rods are maintained in spaced-apart relationship .by short rod lengths which are interposed between the elongate rod members of each pair and spot welded thereto. The studs enable a sectional .inner wall to be utilized by enabling the latter sections to be secured to the studs by clip members. The clips are engaged to the stud rods and secure the wall sections thereto, as will hereinafter be described in greater detail. The stud members in addition to enabling a sectional inner wall to be erected also assure a Vstable overall partition iassembly.
For a more complete understanding of this invention, reference should now be given to the drawings, wherein Figure l is a fragmentary perspective view of a partition utilizing therunner members which are the subject of this invention;
v Fig. 2 is an end view of a ceiling runner constructed in accordance with thel principles of this invention;
Fig. 3 is a fragmentary top plan view of the ceiling runner illustrated in Fig. 2;
Fig. 4 is an end view of a floor runner constructed in accordance with the principles of this invention;
Fig. 5 is a fragmentary top plan View of the floor runner illustrated in Fig. 4;
Fig. 6 is a fragmentary perspective view of a partition construction in which a stud member is utilized in conjunction with floor and ceiling runners;
Fig. 7 is a fragmentary end View of the partition construction of Fig. 6;
Fig. 8 is .a sectional view taken on line 8 8 of Fig. 7; and
Fig. 9 is a sectional View taken on line v9-9 of Fig. 7.
Referring now to the drawings, `and more particularly to Figs. 1 and 2, a ceiling runner 10 which has been formed from an elongate piece of sheet metal is illustrated. rlfhe runner 10 may be rolled or bent into the configuration shown in Fig. '1, but it should be understood 4that a runner member formed of plastic, and other materials, which is constructed in accordance with Patented Uct. 20, 1959 the principles hereinafter advanced will work to advanta e.
gThe runner has a cross section, as seen in Fig. 2, in which a web portion 12 is formed integrally at opposed longitudinal edges with wall portions 14 converging from portion i2. Wall portions 14 are, in turn, formed- 1ntegrally at their converging end limits with flange portlons 16 which are outwardly disposed away from the interposed web portion 12 but disposed in a plane parallel thereto. The outer edge end limits of the flange portions 16 of the ceiling runner member 10 are formed integrally with downwardly disposed converging strip portions 18.
The cross-sectional configuration of the ceiling runner member is, therefore, seen-to comprise a central or main channel portion formed integrally with two laterally disposed twin channel portions which have wall portions converging in a direction oppositely disposed to the direction of convergence of the main channel wall portions.
In the course of partition assembly, the ceiling runner 10 is affixed to a ceiling surface as follows: The runner ange portions 16, or web portions of the runner lateral channels, are disposed flush against that surface portion of the ceiling across which the partition is to be formed. As is more clearly seen in Figs. l and 2, fastening means such as nails 21 pass through longitudinally spaced apertures 20 disposed in flange portions 16 of the runner 10 and engage ceiling joists 23 after traversing ceiling 25.
Following the positioning of the runner 10, wallboards 24 which may be of a single or double thickness as shown, and fabricated of gypsum, plastic or other material suitable for this purpose, slidably engage wall portions 14 of the ceiling runner and are inserted between the downwardly converging wall portions 18 and 14 of v each lateral channel. This latter insertion is possible since the thickness of the wallboard or boards 24 which make up each partition wall is less than the interval between wall portion 14 and the depending edge 22 of each lateral channel portion illustrated in Fig. 2 as the distance x. However, the thickness of the wallboards 24 which make yup each partition wall is greater than the interval between the line of juncture 26 between web 12 and each of the side wall portions 14 and a vertical projection disposed flush with the distal edge limit 22 of the strip portions 18, which distance is illustrated in Fig. l as the interval y.
When the upper end portions of the wallboards 24 are inserted between the edge end limit 22 of the downwardly interval y be less than the thickness of the wallboards that are wedged between the opposed ceiling runner portions on either side, and that the interval l:c be greater than the wallboard thicknesses. If these conditions are met, the angle or angles defined by the juncture of the wall portions 14 and web portion 12 and the flange portions 16 and the side wall portions 14 and the strips 18 are immaterial. It is, of course, obvious that for appearances sake the strip portions 18 which function as mouldings should converge downwardly at a uniform angle on either side.
In Fig. 4 an end view is shown of floor runner 34 which is adapted to maintain the lower portions of the wallboards in fixed position and which is constructed similarly to the ceiling runner 10 with the exception that the converging strip portions 18 of runner 10 are omitted. The floor runner comprises a lweb portion 13 formed integrally at opposed longitudinal edges with the converging wall portions 15. These latter wall portions are, in turn, formed integrally with the outwardly disposed flange portions 17 which are disposed in a plane parallel to that of the web 13 and which rest on floor surface 39. Flange portions 17 are appropriately apertured as at 19, see Fig. 5, to facilitate securing of the fioor runner to floor joists 37 by appropriate securing means, such as nails 35.
It is the procedure in the erection of a partition assembly, such as is illustrated in Fig. l, to initially secure the fioor runner 34 to the fioor in the desired location. The ceiling runner is then affixed to the overlying support surface, after a plumb line has properly located the ceiling runner relative to the floor runner. After both runners are properly secured in place, each of the wallboard top portions is inserted in the opposed lateral channel portions of the ceiling runner defined by the depending strips 18, flange portions 16 and wall portions 14 and arcuately moved so as to assume vertical positions. Durl ing the course of this latter movement, the depending converging strip portions 18 of the ceiling runner lateral outwardly the downwardly converging strip portions 18.
A firm contact is thus assured between the upper portion of each of the wallboard members 24 and the ceiling runner 10 because of this double line contact effected along edges 22 and 26 of the ceiling runner.
strip 18 is forced outwardly from its initial position as a result of the lever action effected by the wallboard in which edge 26 is utilized as the fulcrum. Following this arcuate movement, the distal edge end limit 22 of each depending strip 18 firmly bears against the surface of the engaged wallboard effecting a line contact therewith.
Also, at the end limit of the above-described arcuate movement, the lower portions of each of the wallboards 24 abut against a corner edge or juncture 36 defined by the joining of the web portion 13 with each of the convergingrwall portions 15 of the floor runner 34. In this latter disposition, fastening means, such as self-tapping screws 38, threadedly engage each of the wallboards and Y secure the same to the opposed converging walls 15 of In the normal assembled position, the wallboards 24 are firmly wedged in the lateral channel portions of the ceiling runner and thereby provide a stable partition construction in which all parts are relatively immovable. It is apparent from Fig. l that, upon assuming the vertical position, the downwardly converging strip portions 18 of the ceiling rumrer 10 function as a moulding strip. Since the two flange portions 16 of the ceiling runner are positioned flush against the supporting ceiling surface, the depending strip portions 18 will also be disposed against the overlying ceiling surface at their upper end limits or edges 30 which define the junctures between the flange portions 16 and the strip portions 18, as will be more clearly seen in Fig. 2.
It is obvious that the configuration of the downwardly converging strips 18 which function as moulding strips may be formed in advance so as to be of any desired decorative configuration. It is critical, however, Ithat the f-I the floor runner.
As a result of the latter engagement between the wallboards 24 and the edges 36 of the floor runner, a tight engagement is assured in which the length of the wall is aligned along the edges 36 thereby assuring a pleasing partition appearance.
It is apparent that, with the ceiling runner construction provided, no separate operation for the application of a moulding strip is necessary. In addition, no operation whereby the opposed wallboards 24 are secured Ato the walls 14 'of the ceiling runner by securing means is necessary. By eliminating these latter two operations, a considerable savings in time and labor is apparent. Both thc ceiling runner and the floor runner may be assembled in an efiicient manner in a minimum amount of time. The provided runners are adapted to efficiently function in the erection of hollow wallboard partitions despite the nature of the wallboard.
As above mentioned, the specific configuration of the ceiling runner is of little importance. The critical features,however,'1ie in the relative disposition of the wall Y portions 14 and the downwardly converging strip portion .tion -16 and a converging wallf114 shouldlbe 4less than 90.l
Similarly, vthe angles between Athe walls 15 and the web .13 of the floor runner should be .less than 90. Both `the ceiling and door runners may be formed from ordinary sheet metal and are thus inexpensive to fabricate.
. For purposes of rigidity and strength, suitable stud members may be disposed at .predetermined intervals between opposed wallboards which may be composed ,of gypsum, wood, plastic or othersuitable material. Such Va stud member is illustrated in '.Fig. 6 wherein a partition construction similar to that illustrated in Fig. l is dcpicted. In the partition construction of Fig. 6, the innermost wall is composed of a plurality of gypsum sections l42 having opposed longitudinal edges of rounded configuration. Also, the ceiling runner a and oor runner 34a illustrated are slotted for reception of a stud member `44 andthe floor runner 34a is approximately onehalf the height of iloor runner 34 in Fig. 4.
The stud 44 comprises opposed pairs of parallel elongate steel rod members 46. Short lengths of a rod 48 of zigzag conguration are disposed between each pair of `opposed rods 46 and interconnect the .opposedA rod pairs. For permanence of assembly, the rod lengths are spot welded to the rod members 46.
Themodied ceiling runner 10a of Fig. 6 has a web portion 12a which is slotted at 50, as is more clearly seen frornFigs. 6 and 8. The slots 50 and52 disposed at predetermined intervals in the ceiling runner 10a` and floor runner 34a have a width which isv greater, and preferably approximately one and one-half times the greatest width of the stud members. Because of the latter width relationship, the studs may be readily twisted out of contact with opposed slot-defining portions of the .ceiling and oor runners, and thus readily raised upwardly into the ceiling runner and over the lioor runner in the process of assembly or disassembly, a-s will hereinafter be explained in greater detail. Y
. It-will be noted from Figs. 6 and 7 lthatthepartition construction illustrated utilizes a 4modified floor runner 34a which is of a height approximatelyone-half that of the floor runner illustrated in Figs. 1, 2, 4 -and 5. The lioor runner 34a is also slotted at intervals identical With those of the overlying ceiling runner 10a. In the course of assembling the stud member 44 to the ceiling runner 10a and the floor runner 34a, it is first inserted in the overlying ceilingrunner 10a andmay be turned in the slot 50 to facilitate upward movement therein so as to be insertable between the converging walls-14a. Since the height of the ceiling runner is approximately twice that `of i'loor runner 34a, the stud may be iirst inserted in the ceiling runner, clear the underlying floor runner 34a, and then dropped into a slot 52 disposed in the` lloor runner 34a. .It is apparent, therefore, that the stud rods 46 may interlock with the ceiling and iloor runners after both of the latter runner members have been secured inV position. l p
After the stud 44 has engaged the slots in the tloor runner 34a, it will `be locked at vopposed vend limits, whereby the stud is relatively immovable with the iloor and ceiling runners. The'stud 44 is wedged betweenthe opposed converging walls 14a of theceiling runner 10a at its upper portion and between ,the end limits of the opposed converging walls 15a of the iloor runner atV its lower .portion as illustrated in Fig. 6. This latter wedging engagement is made possible sincethe slots r50 and 52 in the ceiling and -floor runners, respectively, are of a greater width than that of the stud member which they receive.
Referring to'Fig. 7, it will belnoted that the upper end limits of thestud 4'4'fr`ictionally engage the opposed side -walls 14a of the ceiling runner 10a at the pointsof contact 54. Similarly, the bottom end limits of the stud elongate rods frictionally engage the bottom floor runner at pointsvofv contact 5S. `It-is-preferred that the bottom end limits ofthe elongatestud rods 46 rest` on the 6 jooras illustrated .to avoid distortion of opposed side walls 15a.v 'Howeven the elongate rods are snugly .re- 4ceived .between the lower end limits of the walls 15a as illustrated. t
Utilizing such a stud-reinforced partition construction, `gypsum boards 42 in the form of elongate slabs may be secured to the stud members 44 by means of boardengagingmclip members 56. These latter clip members are moreclearly seen in Figs. 6 and 7 and function to secure the board members to the vertical elongate rods 46 of the stud members by a clampingengagement which is believed apparent. Each of the clip members 56 -has a rod-engaging portion 58 and a board-engaging portion 60 which is adapted to engage portions of two adjacent boards 4t2. It is apparent that, by using such clip members, sheets of gypsum board may be secured to the stud members in a facile manner which assures rigidity of partition assembly.
The outermost wallboard member 62 which may also be composed of gypsum, plastic or the like engages the ceiling-runner 10a and the floor runner 34a in a manner previously described with relation to the ceiling runner ,10 and the floor runner 34 which have been described in detail above.
It will be noted from Figs. l, 6 and 7 that the upper end limits of the wallboards 24, 42 and 62 do not extend to the ange portions of the ceiling runners. This latter interval between the runner flanges and the wallboards enables downward movement or deflection of the ceiling 25 to take place without compression and resulting damage to the engaged boards. Such deection occurs in ceilingsl having extended Vunsupported lengths, particularly roofs of one story-dwellings which are subjected ,to the weightjof rain and snow. Thus, as a result of the spacing between the fboards and runner, relative slidable movement between the latter two partition components is permissible when the overlying ceiling deflects in a downwardly direction.
It is thus seen that the constructions of Figs. 6 through 9 enable a-sectional inner wall to be utilized in Vconjunc-A tion with an integral outer wall 62 and simultaneously provide rigidity of assembly and increased iire protection because of the double wall construction. The illustrated stud and its method of connection with the opposed ceiling and floor runners may, of course, be utilized with the double integral wall construction utilized in Fig. 1.
In view of the many modifications which are possible V and which will still remain within the ambit of the inventive concepts herein disclosed, it is intended that this invention be limited only by the scope of the appended claims.
1. An elongate runner construction for assuring alignment of Wallbards or'the like comprising a web portion,
two symmetrical wall portions inclined to said web portion, said wall portions converging in a direc-tion away from said web portion, each of said wall portions having a rst longitudinal edge formed integrally with one of the opposed longitudinal edges of-said web portion, and a symmetrical ange portion formed integrally with a second longitudinall edge of each of said wall portions, said flange portions also being disposed parallel to said web portion, such wallboards or ,the like etecting a line .contactwith the junctures between said web and inclined walll portions, said runner Harige portions extending outwardly from beneath said overlying runner web-Wall junctures so as to enable a fastening means to be readily secured thereto.
2. An elongate'runner construction comprising a web portion, two wall portions converging in a direction away from said web portion, each of said Wall portions having one longitudinal edge thereof formed integrally with one of the opposed longitudinal edges of said web portion, two ilange portions, each of said flange portions vhaving one longitudinal edge thereotiformed integrally with a second longitudinal edge of one of said wall portions and disposed parallelto said web portion, and two converging strip portions, each of said converging strip portions having one longitudinal edgethereof formed integrally with a second longitudinal edge of one of said fiange portions, said latter strip portions converging in the direction of said web portion, the terminal distal edge of each of said strips being disposed in a plane disposed normal to said runner iiange portion which plane is also outwardly spaced from the adjacent juncture between the web and a wall portion of said runner.
3. The runner construction as recited in claim 2, in which the angles defined between said converging strip portions and their respective ange portions are equal.
4. The construction as recited in claim 2 in which the angle defined by each of said converging wall portions and said web portion, and the angle defined between each of said converging strip portions and its respective fiange portion is less than 90 degrees.
5. In a partition construction, the combination comprising at least two wallboards, a runner construction engaging terminal end portionsrof said wallboards, said runner construction comprising two opposed wall portions, a web portion maintaining said wall portions in spaced-apart relationship, said wall portions converging in a direction away from said web portion, such terminal end portions of said wallboards engaged by said runner construction effecting a line contact with the juncture defined between said converging wall portions and said interconnecting web portion in the normal assembled position, and fiange means disposed parallel to said web portion formed integrally with the terminal end portions of said converging wall portions.
6. In a partition construction, the combination comprising at least two wallboards, a runner construction engaging end portions of said wallboards, said runner construction having a substantially channel-like configuration and comprising a web formed integrally at opposed longitudinal edges with two uniform wall portions converging in a direction away from said web portion, flange portions formed integrally with the remaining longitudinal edges of said wall portions and disposed parallel to said web portion, converging strip portions disposed opposite said wall portions formed integrally with the remaining longitudinal edges of said fiange portions, said strip portions converging toward said web, the thickness of each of said wallboards to be engaged being greater than the shortest distance between adjacent parallel planes normally disposed to said flange portions, one of said planes effecting a line contact with the distal end limit of each of said strips and the other of said planes efiecting'a line contact with each of said converging walls junctures with said web portion; the thickness of each of said wallboards to be engaged being less than the shortest distance described by a line disposed parallel to said fiange portions and drawn from the distal end limit of one of said strip portions to the adjacent converging wall portion.
7. In a nonload-bearing partition construction, the combination comprising at least two wallboards, a runner construction engaging end portions of said wallboards, said runner having a substantially channel-like configuration and comprising a web formed integrally at opposed longitudinal edges with two uniform wall portions converging in a direction away from said web, fiange portions, formed integrally with `the remaining longitudinal edges of said wall portions and disposed parallel to said web, strip portions converging toward said web disposed opposite said wall portions formed integrally with the remaining longitudinal edges of said flange portions, the thickness of each of said wallboards to be engaged being less than the shortest distance described by a line disposed parallel to said fiange portions and drawn from the distal end limit of one of said strip portions to the adjacent converging wallportion, the thickness of each of said wallboards also being slightly greater than the interval between parallel planes disposed normal to said ange portions, one of said parallel planes having the distal edge end limit of one of said strips flush therewith and the other planehaving the juncture between said web and saidv converging wall portions fiush therewith. v
8. In a partition construction, the combination com prising at least two wallboards, a runner construction engaging terminal end portions of said wallboards conrprising two opposed clamping means of inverted channellike configuration, interconnecting elongate means engaging and maintaining said opposed clamping means in parallel spaced relationship, each of said clamping means comprising opposed walls maintained in spaced relationship by an interconnecting strip portion, said opposed walls converging in a direction away from saidstrip portion, the thickness of such wallboard terminal end portions to be engaged being less than the width of each of said clamping means strip portion.
9. A partition construction comprising at least two wallboards, a runner construction engaging terminal end portions of said wallboards comprising two opposed clamping means of inverted channel-like configuration, interconnecting elongate means engaging said opposed clamping means and maintaining them in parallel spaced relationship, each of said clamping means comprising opposed walls joined by an interconnecting strip portion, said walls converging in a direction away from said strip portions, each of said clamping means having a distal longitudinal edge, the thickness of such wallboard terminal end portions engaged being greater than the distance between adjacent parallel planes one of which is disposed normal to said clamping means strip portions and effects a line contact with the distal longitudinal edge of one of said clamping means and the other of which effects a line contact with the adjacent juncture between each of said clamping means and said elongate means.
10. A partition construction comprising at least two wallboards, a runner construction engaging terminal end portions of said wallboards comprising two opposed clamping means of inverted channel-like configuration, interconnecting elongate means engaging and maintaining said opposed clampingmeans in parallel spaced relationship, each of said clamping means comprising opposed walls joined by an interconnecting strip portion, said walls converging in a direction away from said strip portions, each of said clamping means having a distal longitudinal edge, the thickness of said wallboard terminal end p0rtions to be engaged 4being less than the shortest distance described by a line disposed parallel to said flange portions and drawn from the distal end limit of one of said strip portions to the adjacent wall portion.
l1. A partition construction comprising at least two wallboards, a ceiling runner comprising two opposed clamping means engaging upper terminal end portions of said wallboards, and interconnecting strip means maintaining said opposed clamping means in parallel spaced relationship, said wallboard terminal end portions being wedged between the distal end portion of each of said clamping means and the juncture defined by each of said clamping means and said interconnecting strip means in the normal assembled position, and a floor runner comprising two wall portions, maintained in spaced-apart relationship by an interconnecting web portion formed integrally with one edge of each of said wall portions, said wall portions converging in a direction away from said web portion, an outwardly projecting fiange portion formed integrally with a second edge of each of said wall portions and disposed parallel to said web portion, said ceiling runner and said fioor runner being in superposed relationship in the normal partition of assembly, the juncture between said web portion of said floor runner and each of said converging wall portions thereof forining a line contact with a bottom portion of one of said wallboards in the normal assembled position.
12. A partition construction comprising ceiling runner means, a supporting ceiling surface for said ceiling runner, oor runner means oppositely disposed to said ceiling runner, said iioor runner being disposed on a supporting oor surface, said ceiling runner comprising opposed clamping means and an interconnecting strip removed from said ceiling surface joining said clamping means, each of said clamping means having opposed downwardly converging wall portions, said Hoor runner comprising opposed walls converging downwardly in the normal position of assembly joined by an interconnecting web portion spaced from said flioor surface, said ceiling runner strip portion and said floor runner web portion being uniformly apertured at predetermined intervals, and stud means disposed between said ceiling and oor runners and having end portions projecting into the apertures disposed in said strip and web runner portions, said References Cited in the tile of this patent UNITED STATES PATENTS 1,472,194 Schaefer et al Oct. 30, 1923 1,778,337 Pratt Oct. 14, 1930 1,981,240 McNeil Nov. 20, 1934 1,982,104 Holdsworth Nov. 27, 1934 2,097,484 Winslow Nov. 2, 1937 2,269,384 Spinosa Jan. 6, 1942 2,682,087 Siering June 29, 1954