US 1859779 A
Description (OCR text may contain errors)
May 24, L. H LEE WALL BOARD FASTENER Filed July 8, 1930 INVENTOR Patented May 24, 1932 UNITED STATES PATENT. OFFICE,
LEIEFMAN H. LEE, OF BELLEVU'E, PENNSYLVANIA, ASSIGNOR or oNE-sIx'rH To WIL- LIAM B. WHARTON AND oNE-sIx'rH TO JAMES M. GUTHRIE, BOTH OF PITTSBURGH,
PENNSYLVANIA WALL BOARD FASTENER Application filed July 8, 1930. Serial 170,466,378.
This invention relates to a fastening device; a device for installation in plates, or structural members of metaL- The device embodies certain new and useful characteristics, and, in the following specification I shall show one of the many applications in which the device may be employed. Notice is hereby given of my co-pending applications Serial No. 446,419, filed April 22nd,
1930, Serial No. 450,144, filed May 6th, 1930, and Serial No. 477,810, filed August 26th, 1930.
In the accompanying drawings Fig- I is a view in cross section, showing fragmentarily a portion of a structural steel section, in which element the thimble or cup portion of my fastening device-has been installed, and showing in side elevation a nailable plug, ready for permanent insertion in said thimble; Fig. Ia shows in plan the open end of the thimble; Fig. II is a view in'cross section, similar to that of Fig. I, showin the plug permanently nested within the t imble, and the thimble permanently looked within the steel section; Fig. III is a. fragmentary view, in side elevation, of the abutting edges of two wall-forming boards; three complete wall fasteners are shown in position of service; and Fig. IV is a View in cross section, taken on the plane IV-IV of Fig.
III, illustrating the manner in which a complete fastener secures the wall boards to a structural steel frame member.
The steel plates or steel frame members 1,
to which wall boards, ground strips, or other fixtures are to be secured, are provided with orifices 2 for the reception of cups or thimbles 3 at convenient points throughout the length of the steel frame members. Within each cup 3 a plug 4 is secured, the plug being a nailable pluga plug which has the capacity of receiving and retaining a driven nail, or a screw. The thimblesthemselves 7 are of distinctive construction; they are conveniently stamped of sheet metal, such as brass, copper, steel, copper-coated steel etc. After the thimbles are formed they are annealed, to afford a certain degree of ductility or expansibility. a
The orifices 2, as they are formed in the frame members 1, vary slightly in size. To the end that the insertion of the thimbles may be readily accomplished, the lower portion 3a (Fig. I) of each thimble is of diminished cross-sectional extent. One end of the I thimble comprises a flange 36, overlying the peripheral edge 2a of the orifice 2 wherein itis fitted; the other terminal of the thimble includes a portion for limiting the extent of insertion of its associated plug 4. Such plug-limiting portion advantageously is a flange or web 30. Eachthimble also includes in structure a plurality of inwardly-extending projections 3d; these projections 3d are stamped from the wall material of the thim} ble at 36, and deflected downward to approximately the position in which they are illustrated in Fig. I.
It will be noted that projections 361, when the thimble is inserted in an orifice 2, are located adjacent the lower periphery 2b of the orifice. As a whole, the structure of the thimble is such that the powerful insertion of the plug 4 serves to adjust the thimble to a locked position within the orifice 2. That is to say, without the aid of separately formed locking means, the thimble is so constituted that the insertion of a plug 4 (as shown in Fig. II) is adapted to expandthe thimble into locking position in the orifice 2. The plug 4, as is evident, co-operates with the thimble to efiect a locking of the thimble in the orifice. When the plug has been powerfully moved into the thimble (Fig. II), the projections 367 will have been pressed to overlapping position on the inner wall of the thimble, and, as a result, the wall of the thime ble (at the regions 3;) will have been distorted or bulged to wedge securely the assembled plug and thimble within the orifice. As mentioned above, the plug 4 is a nailable plug, and advantageously it is formed of a slightly compressible material, such as wood or hemp. As a matter of fact, creosote-treated maple plugs have been formed to function well. It is also of importance to form the plugs slightly larger in cross-section than the bore of the thimble. This is for the reason that upon driving the plug into the thimble (it being i '3 of the orifice becomessecuredinthe orifice.
The bulging of the thimble Wall, particularly the bulging of the wall at a localized-region (87) intermediate the length of the body of the thimble, affords additionalimeaus-foli p11? venting the removal of the thimble. A nail onscrew which isdriven intothe plug-of such an, assembleddevice has been found to be e y. cur y-h d;
' Thesecuringof; wall: boards to steel-frame membershas alwaysjbeen aproblem. The
i a v n cllps, expansion devices, and clamps which liave been,employedwhitherto have been costly to install. LpIiOVldQ a device which permits a nailjtobelquickly driven into the metal frame of a building'f a device which requires butylittle more time to .install than is required for the off. a nail into wooden fie me members. I Injsecuring wall boards, sucltas the boards 30, tothe steel frame members ('1);of"a,buil-ding,.the edges of the wall boards arebrought'to abutting positionvover the aligned series. oforifiizes-Q in the steel members (Fig. ITI Any desired number of fastening devices (3, at) :having. first been ins tilldgas desired in the steel member. (1), the, wallgboards are permanently a ttachcd by means of disks or plates 40. and driven nails (seeFigU- IV'); The disks 40 may eachibe in. form ;a flat pieceof 'meta-l, as shown; and, they-may conveniently be perforated for the betterretention ,of such outer. coat of plaster s n.al ..v. hepp ied to. h n tle l boards! Through each disltAQga nail 41 is di ivem; between the. edges. 31 of the wall were. .3 and nto a asteni ev 3, ea beards, id t r i i a e r a1 ma quickly andistrongly secured Q.tHe, t-.eel; tame f r a- The \vebB for, positively limiting the ,extent of; insertion of the plug V 4' prevents the plug, from beingforced through the thimble I nailing, and the metal of which the thirnble is formedjis desirably of such nature that the nail may driven throughit, in 7 dicatedinFig. IV} v In this specification Ifgshow thimbles or cups avhich, upon the driving of -a nai.lable pliig into. each 'thimble, expand :into locked position Within an orifice, That is, the insertionofj a,pl:ug. .into a thimble is adaptedto effect the lateral exp ansion of the .thimble, whereby-the wallfof 'tlie thimble is either laterally, bulged or displaced, into a locking: ;posi tionover tlieperipheral edge, ofthe orifice wherein it' is fitted." ierlthouglrthe co-operation between the thimble and the plug in this respect is to my mind preferable, I contemplate the use of a special machine or tool to effect the expansion of a thimble into locked position within a steel frame member, the plug being later inserted.
' I claim as my invention:
1 In-combination With a steel frame member. having, an. orifice,. a, fastening. device to permit; the nailing. of material, immediately to such steel frame member, wliichLfasteningadevicencomprises a thin-Walledbody of metal which is secured in said orifice, said thin walled bodyincluding a portion overlying the one peripheral edge of said orifice, the Wall: Qf saidAbQdy. beingalaterally. expansible to overheat; appoint intermediate. :its length the. other: peripheral edgerofssaidzorie iice, andranailable. plug laterallyccompressed andsecuredinsaid'body. I
2; In combination with;asteeLframamemher having an orifice, a;fastening (lQVlCGzlZO permit the nailing. of; material. immediately to such. steel frame .member, which; fastening comprises a .thin-walledibody. of. metal which is. located in saidv orifice, said. thinrwalled body including a portion overlying the one peripheraliedge ofzsaid .orifioe,iand= anailable plugswhich iis laterally. compressed into see cure position within said'body, said-shod, also including a wall 1: portion. which: is. ac j 'usted, upon the bringing-of; the. plug to. such compressed position, toioverliethe other 111 ripheral edge ofsaid orifice.v
3.. In combination :witha .steel :frame ,meznber. havingan orifice, a fasteningideviceio permit the.nailingaofmaterial immediately to; such steel: frame, member, which; fasten; ingzdevice comprises athin-walled body. of metal which issecured in-said'zorifice,.said thin-walled'bodyincluding aportionoverlyr ing the one peripheraledge=ofsaidgorifice, the wall of said body being laterally-expansible to overlie the other peripheral edge of said orifice, andanailable plug laterally compressed and securedin said body, said body also including in its structure means for the limitation; of the insertion of said plug'in the body.
4; In combination with'a steel frame memberhaving-anorifice, a fastening device to permit the nailing of; materialimmediately to such steel frame member, whiclr fastening comprises a thin-Walledjbody of -metal which islocatedin said orifice, said thin- Walled body including apportionoverlying the one peripheral; edgeof "said orifice, and a nailable "plug Which-islaterally compressed into secureposition Within said body, said body also includinga Wall" portion! which is adjusted, upon the bringing; of ftheplug: to such compressed position, to overlie the other peripheraledge of said orifice, said-body-also including in its structure lneans-forlthellimitation of the insertion of said plug in the body.
5. In combination with a steel frame member having an orifice, a fastening device to permit the nailing of material immediately to such steel frame member, which fastening device comprises a thin-walled body of metal which is located in said orifice, said thin- I walled bod including a portion overlying the one peripheral edge of said orifice, a wall portion which extends into the bore of said body, and a nailable plug which is inserted and secured in the body, the insertion of said plug being adapted to move said wall portion and to effect the lateral expansion of the wall of said body over the other periphery of said orifice.
6. In combination with a steel frame member having an orifice, a fastening device to permit the nailing of material immediately to such steel frame member, which fastening device comprises a thin-walled body of metal which is located in said orifice, said thinwalled body including a portion overlying the one peripheral edge of said orifice, a wall portion of said body ofiset inwardly thereof, and a nailable plug which is inserted and secured in saidbody, the insertion of said plug being adapted to move said wall portion and to effect the lateral expansion of the Wall of said body over the other periphery of said orifice, said body also including in its structure means for the limitation of the insertion of said plug in said body.
7 A plug-receiving member for the securing of a nailable plug within an orifice, which member includes a thin-walled body of metal, means at the one terminus of such body for limiting the insertion of the member in said orifice, and means adjacent the other terminus of said body for limiting the insertion of said plug in said member, the wall of said member being adapted, upon the insertion of said plug, to yield laterally into tight engagement with said orifice, and to bulge, at a point intermediate its length, into locking position in said orifice.
8. A plug-receiving memberfor the securing of a nailable plug within an orifice, which member includes a thin-walled body of metal adapted to be inserted in said orifice, said member being adapted to receive a nailable plug, and the wall of said body being adapted, upon the reception of said plug, to yield laterally into tight engagement with said orifice, and to bulge at a point intermediate its length into locking position in said orifice. V V
In testimony whereof I have hereunto set my hand.
LEFFMAN H. LEE.