Патент USA US2121784код для вставки
. l2,121,784] _ coWLlNG-‘FAstrENEn ,n , .,tljämât w y ISeaìttIe,` AWashl 1.» “ençievi‘n'prilcorrectriceo..cttw)HL ` ject óffríárèh ¿fiscales tionÄw-itlifan ¿opening of slightly larger >diameter thanthe screw, means for alignment‘of theïsprlng ' and "screw: .«when'i1the device ‘lis Lused'ï' for’ securing » v, parts, together which‘can not beishifted relativev to- each other to» eñ‘ec'tf’a registry'of theapertures'." ..5 - Thelongitudinal. yieldability ofA the conical por-'1l ‘tion of >`the . spring provides the rtension :by ¿which the-:,cowling isV firmly connected` to» its support.' yThe screw: has fa; "shank portion ' formed vwith a ~ ¿is ssanitari;viewing. sicçrnbleiéi , specialthread 32fthat` is preferably square shaped .sh thaparts secured `together in@v to cause the collapsing of the retaining spring by '10 f force components 'acting in thedirection of-the. axis of the screw„l thereby ‘eliminating‘any tendl` ‘ï ency to expand the-spring and reducing to a-'mini-` 1 mum; the. :force required'y to compress ythe J retain , ingvwcoil. xu @Fi 4In order toy »permanently retain #the f ` Y " uoiytheretaining , i ,y l 4¿ `is any elevationalyview _; screw in' place in the cowling,'lthe screw is «formed :C0 Secu?èdftcltäarenaria/and ' ' g, 5 is affront. elevationalnview of_ the‘screw “ingfsïufpportf _l0 ~ ¢ ‘ ~ f with a groove 34, to receive a »split retairiing‘rlng‘ 36; Thistscrewfisr-also formed with a .groove 3B' Y " -adjacent’toîitsfhead to‘receive a* packing in'.th`e= ’ cowlingftlffsecured together rformatta leather .washer 40,‘which serves to pro-' *2y-,my nevelanchorine arrangement consistina» vide; -When ithe ,screw is seated, an; eñective seal ' against leakage; 4wherrused yasal fastener “in a ' 'liquid-proof:compartmènt,. such as-in floats- ïor A «,«ñyingboatsr The? screw head is ¿ provided with 25 a conicaiabutting face >I8 and a flat top surface . Cowling support. Thefcowling is preferably coni 42 having thereon a transverse slot M to receive` `cally countersunkto receive the conicalfface »I8 a suitable’ tool. The depth of the slot issuch of the screwvh'ead,v andris provided >with'a re ' ì inforcing,,wear-resisting `groxninet 20 correspond " ingly countersunk toA Acomplement »the counter fsunlrvportion '22 of the cowling. The grommet « - l5y projects through and is folded overand crimped ` to the conical portion of’the cowling; shown atA 24. ` rThe `grommet is -further ksecured'to the‘cowling ` " by crimping" the same, by providing transverse fcrimps or'ridges 26 projecting'on the outwardly presenting face thereof. f The projections Acooper 'ate with :the-notches 21er 28 formed in theabut " ting’co'nicaltface of the; screw head lto prevent ' rotationl thereof due toy vibration when the cowl -ïi'ng and; support are ñrmly secured together.A The cowling support is likewise countersunk, 29,` to receive the countersunkportion of the cowling;` `”a`nd„has permanently secured thereto on'its in wardly presenting face in concentric relation with thek opening, the retaining spring i6 ¿bymeans of arivetßß.A The spring is preferably formed, for a portion of _its length, of conical shape at the l 'linnen end thereof, and is‘cylindrical for the re * mainder of its length, the vconical portion being suiliciently large‘to encompass the conical coun that it provides, -with the conical abutting face f of the'head, notches 21 for: engagement vwiththe projections or `ridges 26 to retain the screw against rotationv due to vibration when the mem-` bersare nrmiy connected together. The screw head is provided with further notches 28v which provide for greater reñnement of adjustment of 35 the screwE Provision is made to prevent wear and rattling between the members to= be` con nected which, as illustrated, is in the form of a fibrous materialfriction plate 46 cemented to the innergface ofthe cowiing and provided with suitable perforation registering with the counter sunk'portion of the cowling. , ‘ It is believed that the many advantages of a fastening device constructed >in accordance with the present invention will be readily understood. ' The language and expressions which have been ' employed throughout the specification are used as terms of description only and not ofvlimita-` tion, andgsaid termsare intended _to include all the equivalents and such modifications as are possible to‘be vemployed within the scope of the . appended claims.` ¿tersunk portion 29 ofthe Cowling; support» The I Whatis claimed is: f Spring, as thus provided, is laterally and longitu y 1. In combination, a pair of members to be ` `idinally yieldab1e„therebyv providing, in coopera connected, provided with openings to register 40 ' 2,121,784 2 with one another, one of said members having a helical spring iixedly secured in concentric rela tion with the opening on the inwardly presenting face thereof, and a screw member rotatably mounted in said opening, said screw and said helical spring being so constructed and arranged 10 20 together. ' ' 4. A screw element adapted for anchorage with` for said memberssaid screw and the member to be connectedthat'~ is disposed .adjacent thereto a coiled wire to connectapair of members, said having complemental engaging‘portions for fix screw element having a lthreaded shank’portion and an abutting head portion, said head portion edly securing said screw against rotation with» having, on the abutting face thereof one or more respect to its supporting member, when the mem'- ' notches adapted for complementa] engagement y \ , withone or more ridges on the member tobe' 2. In combination, a pair or rriembers,>` to `-be connected, provided with- openings to register connected adjacent said head for ñxedly secur with one another, one of said members having with when ' said _anchorage 4is accomplished. a helical spring ?lxediy secured in `concentric relation with the opening on the inwardly _pre-A 5. A screw element adapted for anchorage‘with a coiledwire to connect a pair of members, said ing said screw against relative rotation there 15 screw element having a square threaded shank having one or more ridges adjacent the opening i portion and a head portion, said head portion on the outwardly. presenting face thereof and a having one or more notches adapted forcem screwfmember 'rotatably mounted in said open ing, said screwand said hêlical'spl‘ing being S0 plemental engagement with one or more “ridges _ , constructed andsarranged as to pi‘Qvidea yieid- » 25 with said ridges for iixedly` securing said screw against rotation with respect to itssupporting member, when the members are ñrmly connected as to provide a yieldingly threaded connection bers are ñrmly connected together. 15 or more notchet` on the abutting face of said head portion adapted for complemental engagement ingly threaded connection for said members, said A«screw having a head portion ï‘providedïwith‘ one 0n the member adjacent said head for fixedly` securing -` said screw i against `relative rotation therewith. whensaid anchorage is accomplished. . a» 6;> A screweiexnent to connect apair or mem 'orf-more notcheson the abutting >.fete vof‘ saidl bers. ‘having a square threaded shank` portion headsportion adapted for complemented Yengagea > adapted for threaded engagement withV a fyieldf ment vwith said .ridgesfor iixediy securing said able anchoring element and a head portion pro- i 30 screw-against Arotation with respect t0 its sur# vided with a locking connection integrally formed 1 porting memberpwhen the" members are nrmly thereon and adapted for complementa! (engage connected; together, i » y3. InV combination, a pair of members to be connected», provided `with”"onetimes. to register 35 with'-, oneanother, one of lsaid members having a helical `slürii'ig ñxedly secured in concentric rela tion with Ythe opening. on the inwardly present ing! face thereof, theothel‘ “ci said members‘hav» ing a reinforcing grommet of wearèr‘esisting ma-` ' .ment with one o! the members to be’ connected to prevent relative rotation- therewith anchorage is accomplished. - when anni“v ‘ - 7. Y A fastening device for securing together two members comprising, in combination.' -a coiled î wire adapted to be supported by one of said mem- ` bersy and yieldable lateraily'- and longitudinally with respect thereto and a -screw element having 40 terial fixedly secured in the opening thereof 'and ’ a square threaded shank` portion >and a head having one or- more ridges on the outwardly pre portion, said head portion having one or more" senting face of said grommet and a> screw‘imem-- ~ notches adapted for complemental engagement ber rotatably mounted in- said "Qpenil'igr said -with a ridge or ridges on the other of said vmem screw -»member and said helical Ispring being eol _ bers to-be'connected, for fixedly securing said .as Cil constructed and arranged as to'. provide a yield ingly threaded connection Vfor said members, said screw having a1 head portion provided with one screw against Arelative rotation therewith when said anchorage is accomplished. ; ` Y DANIEL Bosnië.