SE180149C1 - - Google Patents
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- Publication number
- SE180149C1 SE180149C1 SE180149DA SE180149C1 SE 180149 C1 SE180149 C1 SE 180149C1 SE 180149D A SE180149D A SE 180149DA SE 180149 C1 SE180149 C1 SE 180149C1
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- groove
- tube
- upsetting
- profile
- rudder
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- Rigid Pipes And Flexible Pipes (AREA)
Description
Uppfinnare: W E Wright Prioritet begtird /ran den 26 juni 1958 (Storbritcuinien) Foreliggande uppfinning hanfor sig till r5r av det slag, som aro framstallda av ett eller flera skruvlindade band med varandra delvis thekande lindningsvarv, vilka vary firo Mbildade med i varandra ingripande, gangeller skruvformigt forlOpande falsar, varvid falsarna med avseende pa hoger- eller vanstergangning kunna vara av motsatt gangning jamfort med lindningsvarven och/eller av annan stigning Uppfinningen hanfor sig fiven till en anordning for framstallning av dylika ror. Inventor: WE Wright Priority Started June 26, 1958 (Great Britain). helically extending seams, wherein the seams with respect to right-hand or left-hand threads can be of opposite threads compared with the winding turns and / or of another pitch. The invention relates to a device for producing such pipes.
Ett syfte Dried foreliggande uppfinning ár att astadkomma ett rbr av namnt slag, som kan motsta en avsevard axiell dragningskraft utan att de varandra tackande lindningsvaryen atskilj as. Uppfinningen ager foretradesvis tillampning vid ror, som arc framstanda ay metallband. An object of the present invention is to provide a tube of the named type which can withstand a considerable axial traction without separating the reciprocating winding shafts. The invention is preferably applied to tubes which are made of metal strip.
Ett Tor av namnt slag enligt foreliggande uppfinning kannetecknas darav, aft det ar ntbildat med atminstone en. skruvformigt forlopande fals, vilken bildar en vinkel med bandets kanter och darfor upprepade ganger utefter rorets langd sitar dessa, varjamte falsen ãr sidostukad och anpressad mot rorets mantelyta, sa att de i varandra ingripande falsarna sammanlasas. A tower of the type according to the present invention can be characterized therefrom, since it is formed with at least one. helically extending seam, which forms an angle with the edges of the strip and therefore repeatedly sits along the length of the rudder, each of which the seam is side-spined and pressed against the mantle surface of the rudder, so that the interlocking seams are welded together.
Om roret är f8rsett med flera skrnvformigt forlopande falsar med olika ingfingar, kunna flagon av, nfigra av eller alla falsarna vara sammanlasta pa ovan angivet satt. Om t. ex. falsarna aro skruvlindade med tre ingangar, kunna blott de mittre falsarna vara Sammanlasta pa detta salt. If the tube is provided with several helically extending seams with different fingers, the flaps of, nfigra off or all the seams can be loaded together in the manner indicated above. If e.g. the seams are screw-wound with three inputs, only the middle seams can be loaded on this salt.
De namnda banden kunna vara sammansatta av flera skikt. The said bands may be composed of several layers.
Den anordning, som anyfindes till rorets framstallning, kan vara av det slag, i vilken bandet lindas kring en fast karna eller dorn fran en rulle, som bringas att forflytta sig i en cirkelbana kring dornen, varigenom ett icke-roterande ror bildas med varandra delvis tackande lindningsvarv, och i vilken roret, sedan det lamnat dornen, angrips invandigt och utvandigt av tva i varandra med spel ingripande gangade falsningselement, som bringas att rotera i forhallande till roret, sa att delta bade axial avdrages Iran dornen och forses med de i varandra ingripande falsarna. Anordningen kan alternativt vara av det slag, i vilken bandet drages ut frail en lagesfast rulle av en roterande dorn, pa vilken bandet lindas skruyformigt med varandra delvis tackande lindningsvarv, varvid roret roterar, och i vilken roret angrips invandigt och utvandigt av gangor pa tva i varandra med spel ingripande falsningselement, anordnade sa, att en inbOrdes rotationsrorelse mellan roret och dessa element joke blott bringar rOret att ldmna dornen axiellt med samma hastighet som den, varmed rOret bildas, Wan alien astadkomrner de namnda falsarna pa roret. Vid hada dess anordningar Sr det fOrdelaktigt att pressa falsarnas sidor mot varandra, och det ãr kant att I detta syfte lata det axiellt framkommande rOret passera frau de i varandra ingripande gfingade falsningselementen in. i ett gfingat tillsatselement, forsett med en invandig ganga. Detta tillsatselement kan vara utbildat i ett stycke med eller skill Iran det yttre av de tyâ gangade falsningselementen. Det liar en gfingstigning, som Sr mindre Sn gd.ngstigningen i de tva falsningslementen, och det liar en gangprofil, som Sr vald med hansyn till den efterstravade formen pa falsarna. The device provided for the manufacture of the tube may be of the type in which the strip is wound around a solid core or mandrel from a roller which is caused to move in a circular path around the mandrel, whereby a non-rotating tube is formed with each other in part. thanks to winding turns, and in which the rudder, after leaving the mandrel, is attacked internally and externally by two interlocking threaded folding elements, which are caused to rotate in relation to the rudder, so that to participate both axially, the Iran mandrel is pulled off and forced into each other intervening the seams. The device may alternatively be of the type in which the strip is pulled out of a layered roll by a rotating mandrel, on which the strip is wound helically with each other partially tacking winding turns, the tube rotating, and in which the tube is attacked internally and externally by passages on two folding elements engaging each other with winches, arranged so that a rotational movement of a pipe between the pipe and these elements only causes the pipe to move the mandrel axially at the same speed as the one with which the pipe is formed. In the case of its devices, it is advantageous to press the sides of the seams against each other, and it is advisable for this purpose to allow the axially projecting tube to pass from the interlocking hinged folding elements. in a gfingat additive element, provided with an internal thread. This filler element may be formed in one piece with or separate Iran from the exterior of the usual folding elements. It suffers from a pitch increase, which is less than the pitch increase in the two folding elements, and it suffers from a gait profile, which is chosen with regard to the desired shape of the folds.
En utforingsform av en sadan anordning beskrives under han-visning till fig. 2 i den brittiska patentskriften 605 340. An embodiment of such a device is described with reference to Fig. 2 of British Patent Specification 605 340.
EnIigt foreliggande uppfinning astadkommes en modifierad utforingsform av den anordning, som beskrives i den namnda brittiska patentskriften, medelst vilken de i varandra ingripande falsarna kunna sammanldsas pd. ovan angivet salt. According to the present invention, there is provided a modified embodiment of the device described in the said British patent, by means of which the interlocking seams can be assembled pd. salt indicated above.
En anordning av angivet slag for fram- 2-- — stallning av ror av skruvlindat bandmaterial med varandra delvis tackande lindningsvarv kannetecknas enligt foreliggande uppfinning darav, att den aven innefattar ett med ett skruvformigt forlopande invandigt spar for-sett, roret omslutande stukningselement, vilket är roterbart pa samma satt som och utbildat i ett stycke med eller skilt fran det yttre av de gangade falsningselementen och medelst vilket falsens sidor pressas mot varandra, varvid det skruvformigt forl8pande sparet i stukningselementet, da det narmar sig den andyta av delta element, fran vilken roret lamnar detta, andrar profil pa sa satt, att den sida av sparet, som är vand mot andytan, gradvis blir alltmer snedstalld forhallande till rorets axel, och pa sa Ott, att sparets motsatta sida blir belagen pa ett alit storre avstand fran den forstnamnda sidan, varjamte sparet blir alit mindre djupt, da det narmar sig andytan, sá att falsen, dâ roret passerar genom stukningselementet, sidostukas och anpressas mot r8rets mantelyta. Stukningselementet enligt foreliggande uppfinning svarar i vissa avseenden mot det tidigare namnda tillsatselementet. A device of the type indicated for the production of tubes of screw-wound strip material with mutually partially thanking winding turns can be characterized according to the present invention in that it also comprises a stirring-enclosing inner tube provided with a helically extending inner groove, which is rotatable in the same manner as and formed in one piece with or separate from the outside of the folded folding elements and by means of which the sides of the fold are pressed against each other, the helical extending groove in the upsetting element approaching the face of the delta element from which the pipe leaves this, others profile in such a way that the side of the spar, which is water towards the surface, gradually becomes more and more obliquely inclined to the shaft of the pipe, and so Ott, that the opposite side of the spar is coated at an alit greater distance from the first-mentioned side , and the groove becomes alit less deep, as it approaches the end surface, so that the rebate, when the pipe passes through the sprain element , side-stitched and pressed against the mantle surface of the pipe. The sprain element according to the present invention corresponds in certain respects to the previously mentioned additive element.
Den forstnam.nda sida av sparet i stukningselementet kan, da sparet narmar sig andytan, overga fran att vara vinkelrat mot rorets axel till att luta bort fran denna findyta, varefter sparsidan Ater blir vinkelrat mot rorets axel, dfir sparet är minst djupt. The first-mentioned side of the groove in the upsetting element can, as the groove approaches the end face, change from being perpendicular to the axis of the rudder to inclined away from this fin surface, after which the spar side Ater becomes perpendicular to the axis of the rudder, so that the groove is at least deep.
Den forstnamnda sidari av sparet i stukningselementet kan, da sparet narmar sig andytan, Over en jamforelsevis liten sparlangd i perifeririktningen overgâ fran att vara vinkelrat mot rorets axel till att luta bort fran donna andyta, varefter sparprofilen forblir konstant over en jamforelsevis lang del av sparet i perifeririktningen, tills spa-rots djup gradvis avtar och sparsidan staller sig vinkelratt mot rorets axel, da sparet narmar sig andytan. The first-mentioned side of the groove in the upsetting element can, when the groove approaches the end surface, over a comparatively small length of groove in the circumferential direction change from being perpendicular to the axis of the rudder to inclined away from the groove surface, after which the groove profile remains constant over a comparatively long part of the groove. the circumferential direction, until the depth of the spa root gradually decreases and the saving side stands perpendicular to the axis of the rudder, as the spar approaches the end surface.
Da tva pa varandra foljande andringama I sparprofilen kunna astadkommas medelst pa larnpligt satt formade dynor, vilka aro inforda i urtag i stukningselementet, som stracka sig axiellt in Iran andytan och skara sparet. Dynorna kunna darvid vara anordnade med ett inbordes vinkelavstand av 180°. Then two consecutive changes in the savings profile can be achieved by means of molded cushions, which are inserted into recesses in the sprain element, which extend axially into the surface of Iran and cut the savings. The cushions can then be arranged with an inboard angular distance of 180 °.
Sparet i det yttre falsningselementet har lampligen storre stigning an sparet i stukningselementet, sa att sparstigningen avtar 1 riktning mot andytan. Darvid har sparet med storre stigning trapetsprofil liksom den samverkande gangan pa det inre falsningselementet under det att sparet med mindre stigning i stukningselementet har rektangular profil med undantag for den del av sparet, som narmar sig a.ndytan, vilken del av sparet ãr utbildad p0. ovan beskrivet satt. The groove in the outer folding element has a suitably larger pitch than the groove in the upsetting element, so that the pitch pitch decreases in the direction of the end surface. In this case, the spar with a larger pitch has a trapezoidal profile as well as the cooperating passage on the inner folding element, while the spar with a smaller pitch in the sprain element has a rectangular profile with the exception of the part of the groove which approaches the surface, which part of the groove is formed. described above sat.
Om roret skall forses med tre skruvlindade falsar med olika ingangar är aven stuk ningselementet forsett med tre spar med olika ingangar; vid en utforingsform av en anordning enligt foreliggande uppfinning ãr darvid endast det mittre av de tre sparen i stukningselementet utbildat pa ovan angivet s att. If the rudder is to be fitted with three screw-wound seams with different inputs, the upsetting element is also provided with three grooves with different inputs; in an embodiment of a device according to the present invention, only the middle of the three grooves in the upsetting element is formed in the manner indicated above.
I det foljande beskrives en utforingsform av ett ror enligt f5religgande uppfinning samt en anordning for framstallning av ett sadant ror. Darvid hanvisas till bifogade van i fig. 1 schematiskt visar en sidovy av anordningen, fig. 2 visar ett langdsnitt genom„ dornen- saint de gangade eller sparforsedda falsningselement, varmedelst falsarna framstallas, fig, 3 visar en andvy av det med invandigt, skruvformigt forlopande spar fOrsedda stukningselementet, fig, 4 visar ett snitt langs linjen 4 4 i fig. 3, sett i pilarnas riktning, fig. 5 visar ett snitt langs linjen 5-5 i fig. 3, sett i pilarnas riktning, fig. 6 i forstorad skala visar ett axialsnitt genom de tvá med invandiga spar forsedda elementen, vilken figur illustrerar sparprofilen, fig. 71 forstorad skala visar det med en utvandig ganga forsedda inre falsningselementet, vilken figur illustrerar detta elements gangprofil, fig. 8 visar en andvy av den dyna, som anvandes i urtaget enligt fig. 4, fig. 9 visar dynan enligt fig. 8 anbragt i sift urtag, fig. 10 visar dynan enligt fig. 8, sedd i stukningselementets axialriktning, fig. 11 visar dynan enligt fig. 10, sedd underifran, fig. 12 visar en andvy av en andra dyna, anbragt i urtaget enligt fig. 5, fig. 13 visar den andra dynan, sedd i stukningselementets axialriktning, fig. 14 visar dynan enligt fig. 13, sedd underifran, fig. 15 visar en sidovy av en del av ett fardigt r8r och fig. 16 i forstorad skala visar ett axialsnitt genom roret enligt fig. 15. In the following, an embodiment of a tube according to the present invention and an apparatus for manufacturing such a tube are described. Referring to the accompanying vane in Fig. 1 schematically shows a side view of the device, Fig. 2 shows a longitudinal section through the mandrel-sealed folded or sparse folding elements, by means of which the seams are produced, Fig. Fig. 4 shows a section along the line 4 4 in Fig. 3, seen in the direction of the arrows, Fig. 5 shows a section along the line 5-5 in Fig. 3, seen in the direction of the arrows, Fig. 6 in enlarged scale shows an axial section through the two elements provided with internal grooves, which figure illustrates the spar profile, Fig. 71 enlarged scale shows the inner folding element provided with an external thread, which figure illustrates the gait profile of this element, Fig. 8 shows a view of the pad, used in the recess according to Fig. 4, Fig. 9 shows the cushion according to Fig. 8 arranged in sieve recess, Fig. 10 shows the cushion according to Fig. 8, seen in the axial direction of the upsetting element, Fig. 11 shows the cushion according to Fig. 10, seen below Fig. 12 shows a view of a second pad, arranged in the recess according to Fig. 5, Fig. 13 shows the second pad, seen in the axial direction of the upsetting element, Fig. 14 shows the pad according to Fig. 13, seen from below, Fig. 15 shows a side view of a part of a finished pipe and Fig. 16 on an enlarged scale shows an axial section through the pipe according to Fig. 15.
Anordningen enligt fareliggande uppfinning beskrives i stora drag under hanvisning till fig. 1 och 2. Ett metallband 10 forvaras pa en rulle 9, vilken är roterbart anbragt pa en arm 11. Armen 11 ar fastad vid en navdel 12, vilken kan rotera kring en ilialig dam 13, som är fastad yid ett stativ 14. Navdelen 12 bringas aft rotera kring dornen medelst en lamplig transmission, vilken schematiskt antydes vid 15. Vid operationens igangsattning infores metallbandets 10 ande mellan inre och yttre roterbara falsningselement 16 och 17, vilka aro utbildade med lost I varandra ingripande utvandiga och invandiga gangor 18 resp. 19. Dot yttre falsningselementet 17 an roterbart anbragt i en hallane 20 och drives medelst en lamplig transmission, av vilken en del visas vid 21. Det inre falsningselementet 16 an medelst en. kil 22 fastkilat pa en hylsa 23, vilken är genomford genom den ihaliga dornen 13 och skjuter ut bakom stativet 14. Hylsan 23 bringas att rotera med samma hastighet som det yttre falsningselementet medelst en transmis- — —3- sion, av vilken en del 24 är anbragt pa hylsans utskjutande ande. Med det yttre falsningselementet 17 at ett darmed koaxiellt stukningselement 17' fast forenat. Stukningselementet 17' är fOrsett med skruvformigt forlopande, invandiga spar 27 och omsluter roret, som i sin tur dar stukningselementet ãr belaget omger ett fast rafflat organ 25, som at utbildat med sparrtandsformade Vander 26. Sam senare shall beskrivas met ingaende ha de i varandra ingripande gangorna och sparen 18 respektive 19 trapetsprofil, under det att sparen 27 i stukningselementet 17' ha rektangular profil och .mindre stigning. Det rafflade organet. 25‘ ar joke roterbart; det är forsett med ett gangat centrumhal 28, van i den gangade yttre anden av en stang 29 ar inskruvad. Denna stang är genomford genom hylsan 23 och skjuter ut bakom denna hylsa. Stangen 29 ãr fastad vid en der 30 av stativet. The device according to the present invention is described in general with reference to Figs. 1 and 2. A metal strip 10 is stored on a roller 9, which is rotatably mounted on an arm 11. The arm 11 is fixed to a hub part 12, which can rotate about an axial lady 13, which is attached to a frame 14. The hub part 12 is caused to rotate around the mandrel by means of a lamp transmission, which is schematically indicated at 15. At the start of the operation, the spirit of the metal strip 10 is inserted between inner and outer rotatable folding elements 16 and 17, which are formed by lost Interlocking external and internal passages 18 resp. 19. The outer folding element 17 is rotatably mounted in a hall 20 and is driven by means of a lamp transmission, a part of which is shown at 21. The inner folding element 16 is arranged by means of a. wedge 22 wedged on a sleeve 23, which is passed through the hollow mandrel 13 and projects behind the frame 14. The sleeve 23 is caused to rotate at the same speed as the outer folding element by means of a transmission, of which a part 24 is mounted on the projecting spirit of the sleeve. With the outer folding element 17 that a coaxial upsetting element 17 'is thus firmly joined. The sprain element 17 'is provided with helically extending, internal grooves 27 and encloses the tube, which in turn where the sprain element is coated surrounds a fixed knurled member 25, which is formed with spar tooth-shaped Vander 26. the passages and the grooves 18 and 19, respectively, trapezoidal profile, while the grooves 27 in the upsetting element 17 'have a rectangular profile and a smaller pitch. The ribbed body. 25 ’ar joke rotatable; it is provided with a recessed center hall 28, used in the recessed outer spirit of a rod 29 screwed in. This rod is threaded through the sleeve 23 and projects behind this sleeve. The rod 29 is attached to one side 30 of the stand.
De inre och yttre gangade falsningselementen, som rotera med samma hastighet, ha till uppgift bade att dra av roret axiellt fran dornen, allteftersom det bildas, och att astadkomma skruvlindade falsar pa roret. Sidorna pa de falsar, som framstallas av de i varandra ingripande gangorna 18 och 19, aro atskilda, men da falsarna passera genom sparen 27, pressas falsarnas sidor narmare varandra. Det rafflade organet har till uppgift hada att halla falsarna kvar i sparen och att fOrhindra, att roret roterar. De inre och yttre g5.ngade falsningselementen aro anordnade att astadkomma tre skruvformigt forlopande falsar 31, 32, 33 (se fig. 15 och 16). Avstandet mellan var grupp om tre falsar är starre an falsarnas inbordes avstand i var grupp. The inner and outer threaded folding elements, which rotate at the same speed, have the task both of pulling the tube axially from the mandrel as it is formed, and of producing helically wound seams on the tube. The sides of the seams formed by the interlocking passages 18 and 19 are separated, but as the seams pass through the grooves 27, the sides of the seams are pressed closer together. The task of the knurled member is to keep the seams in the grooves and to prevent the rudder from rotating. The inner and outer threaded folding elements are arranged to provide three helically extending seams 31, 32, 33 (see Figs. 15 and 16). The distance between each group of three seams is greater than the distance between the seams' inboard in each group.
Anordningen enligt foreliggande uppfinning innefattar organ, anordnade att stuka den mittre av de tre falsarna at sidan och att sedan anpressa denna mot en cylindrisk del 34 av roret. Denna sidostukning och anpressning astadkommes medelst tva pa sarskill satt formade dynor 35, 36 (fig. 8-14), insatta i det mittre av de tre sparen 27 n'agot innan detta spar utmynnar i stukningselementets 17' andyta 37. The device according to the present invention comprises means, arranged to sprain the middle of the three seams to the side and then to press it against a cylindrical part 34 of the tube. This lateral upsetting and pressing is effected by means of two differently shaped pads 35, 36 (Figs. 8-14), inserted in the middle of the three grooves 27 slightly before this groove opens into the end face 37 of the upsetting element 17 '.
Som bast framgar av fig. 6 har de tre skruvformigt forbapande sparen 38 mellan gangorna 19 pa det yttre falsningselementet 17 trapetsprofil, dar roret inkommer mellan falsningselementen 16 och 17. De tre skruvformigt forlOpande gangorna 18 (fig. 7) pa det inre falsningselementet 16, vilka gangor med mellanrum eller spel ingripa i sparen 38, ha likaledes trapetsprofil. Sparen 27 i stukningselementet 17' ha rektangular form, vilket bast synes i fig. 6, varjamte de ha mindre stigning an sparen 38. As can be seen from Fig. 6, the three helically leading grooves 38 between the passages 19 on the outer folding element 17 have a trapezoidal profile, where the tube enters between the folding elements 16 and 17. The three helically extending passages 18 (Fig. 7) on the inner folding element 16, which passages or gaps intervene in the grooves 38, likewise have a trapezoidal profile. The grooves 27 in the upsetting element 17 'have a rectangular shape, as can be seen in Fig. 6, and they have a smaller pitch than the grooves 38.
Sam bast framgar av fig. 3, 4 och 5, aro tva urtag 39, 40 utbildade i stukningselementets 17' andyta 37, vilka urtag aro be lagna 180° isar. Urtagen forlopa sa, att de bilda en liten vinkel med stukningselementets 17' axel 41, vilket bast framgar av fig. 4 och 5, och urtagen aro oppna mot centrumhalet i elementet 17'. Vart urtag stracker sig nagot langre in an till det mittre av de tre sparen 27. Vart urtags inre avslutande vagg är forsedd med ett gangat hal 42 ocli i de tva dynorna 35, 36 aro hal 43 upptagna. Medelst fastskruvar, som aro genomforda genom halen 43 och inskruvade i halen 42; kunna dynorna fastas i stukningselementet 17'. Urtaget 39 och dynan 35 Oro s& formade och dimensionerade, att dynans konkava yta 44 utgor en fortsattning pa sparets batten, sa. att sparets djup forblir konstant. En del: av dynan, vilken del skjuter upp fran den konkava ytan 44, har en sidoyta, som bildar sparets ena sida. Denna sidoyta fOrloper vid dynans ena kant 46 radiellt eller vinkelratt mot den konkava ytan 44 men over& mot dynans motsatta kant 47 i en lutande yta 48, som ãr vand mot stukningselementets 17' and -yta 37 och skjuter fram over en del av sparets bredd. Den lutande ytan 48 bojer den mittre av falsarna pa roret at sidan och fran delta stalle maste sparets andra sida fOrlaggas pa ett stone avstand fran den forsta sidan, sa att ett bredare spar erhalles, vilket visas vid 49 i fig. 4 och 6. Dynan 36 är utbildad med en konkav yta 50, som bildar det breddade mittre sparets botten och som är sa formad, att sparets djup gradvis avtar. Dynan 36 har en del 51, som skjuter upp fran den konkava ytan 50 och bildar sparets 49 ena sida; den andra sidan är oppen. Den sidoyta av sparet, som bildas av den uppskjutande delen 51, 5.r till att borja med lutande mot sparets batten men slutar under rat vinkel mot denna batten, dar det mittre sparet 18per ut i andytan 37. Minskningen av sparets djup och andringen i sidoytans 52 lutning medfor, att den lutande mittre falsen anpressas mot rorets cylindriska del, sascan visas vid 32 i fig. 16. I andamal att understodja roret under denna anpressning av den mittre falsen mot rorets mantelyta dr ett element 53 (se fig. 2) fastat vid det rafflade organet 25, vilket element 53 har en cylindrisk mantelyta. As shown in Figs. 3, 4 and 5, there are two recesses 39, 40 formed in the face 37 of the upsetting element 17 ', which recesses are located 180 °. The recesses extend so that they form a small angle with the axis 41 'of the upsetting element 17', which is shown in Figs. 4 and 5, and the recesses are open towards the center tail of the element 17 '. Each recess extends somewhat further into the middle of the three grooves 27. The inner terminating cradle of each recess is provided with a passageway hall 42 and in the two cushions 35, 36 aro hall 43 occupied. By means of fixed screws which are passed through the tail 43 and screwed into the tail 42; the pads can be fixed in the upsetting element 17 '. The recess 39 and the cushion 35 are so shaped and dimensioned that the concave surface 44 of the cushion constitutes a continuation of the saving edge, so. that the depth of the savings remains constant. A part: of the pad, which part protrudes from the concave surface 44, has a side surface, which forms one side of the groove. This side surface extends at one edge 46 of the pad radially or perpendicularly towards the concave surface 44 but over & towards the opposite edge 47 of the pad in an inclined surface 48, which is water against the abutment element 17 'and surface 37 and projects over a part of the width of the groove. The inclined surface 48 bends the middle of the seams on the tube so that the side and from the delta stall the other side of the groove must be placed at a stone distance from the first side, so that a wider groove is obtained, as shown at 49 in Figs. 4 and 6. 36 is formed with a concave surface 50, which forms the bottom of the widened middle spar and which is shaped so that the depth of the spar gradually decreases. The pad 36 has a portion 51 which projects from the concave surface 50 and forms one side of the spar 49; the other side is open. The side surface of the ridge, which is formed by the projecting part 51, 5.r to begin with inclined towards the batten of the ridge but ends at a right angle to this batten, where the middle ridge 18per out in the opposite surface 37. The reduction of the depth of the ridge and the change in the inclination of the side surface 52 causes the inclined middle seam to be pressed against the cylindrical part of the rudder, as shown at 32 in Fig. 16. attached to the knurled member 25, the member 53 having a cylindrical shell surface.
Det ar uppenbart, att modifikationer kunna goras, utan att uppfinningstanken Iran-gas; sa kunna t. ex. alla falsarna 31, 32, 33 anpressas mot roret, vilket sker genom att anordningen forses med erforderligt antal dynpar. It is obvious that modifications can be made without the inventive idea of Iran gas; so can e.g. all the rebates 31, 32, 33 are pressed against the rudder, which is done by providing the device with the required number of pads.
Claims (9)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE180149T |
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| SE180149C1 true SE180149C1 (en) | 1962-01-01 |
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