DK162264B - PROCEDURE FOR MANUFACTURING SEEM AND SEEM MANUFACTURED BY THE PROCEDURE - Google Patents
PROCEDURE FOR MANUFACTURING SEEM AND SEEM MANUFACTURED BY THE PROCEDURE Download PDFInfo
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- DK162264B DK162264B DK330279A DK330279A DK162264B DK 162264 B DK162264 B DK 162264B DK 330279 A DK330279 A DK 330279A DK 330279 A DK330279 A DK 330279A DK 162264 B DK162264 B DK 162264B
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- seam
- projections
- rolling step
- blank
- shaped
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H8/00—Rolling metal of indefinite length in repetitive shapes specially designed for the manufacture of particular objects, e.g. checkered sheets
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21G—MAKING NEEDLES, PINS OR NAILS OF METAL
- B21G3/00—Making pins, nails, or the like
- B21G3/18—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16
- B21G3/30—Making pins, nails, or the like by operations not restricted to one of the groups B21G3/12 - B21G3/16 by rolling
Description
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Opfindelsen vedrører en fremgangsmåde til fremstilling af 5 søm, der langs sømskaftets fulde længde eller hovedparten af længden har i det væsentlige delkegleformede, skælagtige fremspring, hvis spidser er rettet mod sømspidsen, hvilke fremspring fortrinsvis er anbragt langs en skruelinie rundt omkring sømskaftet.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a method of producing 5 nails which, along the full length of the seam shaft or most of the length, have substantially partial cone-shaped, biased projections, the tips of which are directed towards the seam tip, which projections are preferably arranged along a helical line around the seam shaft.
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Opfindelsen angår også søm med i det væsentlige delkegleformede, skælagtige fremspring langs sømskaftets hele længde eller langs hovedparten af denne længde, hvilke fremsprings spidser er rettet mod sømspidsen, hvor fremspringe-15 ne fortrinsvis er anbragt langs en skruelinie (helix) omkring sømskaftet, hvilke søm er fremstillet ved fremgangsmåden.The invention also relates to nails having substantially partial cone-shaped, bony projections along the entire length of the seam shaft or along most of this length, which projections are directed towards the seam tip, the projections being preferably arranged along a helix (helix) around the seam shaft. is prepared by the process.
I forbindelse med fremstilling af søm er der allerede tid-20 ligere taget forskellige forholdsregler til at forøge holdekraften, idet der som eksempel på sådanne forholdsregler skal nævnes, at sømmene er blevet forsynet med en slidset overflade, med en profileret overflade eller med en knastoverflade, og hele sømskaftet blev vredet. Disse forholds-25 regler til forøgelse af holdekraften blev i vidt omfang foretaget uden hensyntagen henholdsvis ringe hensyntagen til, hvad der faktisk sker ved indslagning af søm i træ, det vil sige, sømmenes virkning på træfibrene og træfibrenes reaktion på sømoverfladen, især evnen til at komme i 30 indgreb med sømoverfladen, da sømforbindelsen, på grund af at belastnings- og klimabetingelserne ændrer sig, er tilbøjelig til at "leve".In the manufacture of nails, various precautions have been taken in the past to increase holding power, mentioning as an example of such precautions that the seams have been provided with a slotted surface, a profiled surface or a cam surface. and the whole nail shaft was twisted. These precautions to increase holding power were largely made without regard, respectively, to little regard for what actually happens when welding wood nails, that is, the effect of the seams on the wood fibers and the reaction of the wood fibers to the nail surface, in particular the ability to come into contact with the seam surface as the seam connection, due to changing load and climate conditions, tends to "live".
Der kendes endvidere en sømkonstruktion (GB patentskrift 35 nr. 330.409), som har en meget høj holdekraft, også efterAlso known is a seam design (GB patent 35 no. 330,409) which has a very high holding power, even after
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2 meget lang anvendelse. Denne sømtype er kendetegnet ved, at sømskaftet langs hovedparten af sin længde henholdsvis langs sin fulde længde er forsynet med i det væsentlige delkegleformede, skælagtige fremspring, hvis spidser er 5 rettet mod sømspidsen, hvilke fremspring er anbragt således i sømskaftets omkreds - og længderetning, at sømskaftets tværsnit over hele sin længde er i det væsentlige konstant. Disse søm fremstilles ved udvalsning af de skælagtige fremspring på et råemne.2 very long use. This type of seam is characterized in that the seam shaft is provided along most of its length or along its full length, respectively, with substantially partial cone-shaped, bony projections, the tips of which are directed towards the seam tip, which projections are thus arranged in the circumference and length of the seam shaft. the cross-section of the seam shaft over its entire length is substantially constant. These nails are made by rolling out the bald projections on a blank.
10 Sådanne søm kan også frembringes ved en koldstukningsproces under anvendelse af koldsmedematricer, som med meget stor kraft presses mod råemnet fra siderne for i en slags præge-proces at danne de i det væsentlige delkegleformede frem-15 spring. En sådan koldstukningsproces medfører visse fordele med hensyn til slutproduktet, men i praksis er den så dyr, at den ikke er anvendelig på grund af slutproduktets pris.Such nails can also be produced by a cold-casting process using cold-die matrices which are very forcefully pressed against the blank from the sides to form in a kind of embossing process the substantially partial cone-shaped projections. Such a cold-frying process brings certain advantages to the final product, but in practice it is so expensive that it is not applicable because of the price of the final product.
Det er endvidere kendt (US patentskrift, nr. 2.821.727) at 20 afflade sømråemner ved valsning før den endelige profilering. Ifølge US patentskrift nr. 2.821.727 bliver de ved affladningen opståede længderibber ikke profileret, men kun affladningerne.It is further known (U.S. Patent No. 2,821,727) to 20 flatten seam blanks by rolling before final profiling. According to U.S. Patent No. 2,821,727, the longitudinal ribs resulting from the discharge are not profiled but only the discharges.
25 Fra DE offentliggørelsesskrift nr. 2.656.277 er det kendt til fremstilling af betonforstærkningsstave først ved kold-valsning at forsyne råemnerne med affladninger og derefter forsyne de mellem affladningerne forblivende vulster med ribber.25 From DE Publication No. 2,656,277, it is known for the manufacture of concrete reinforcing rods first to discharge the blanks and to provide the ribs remaining between the discharges with cold rolling.
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Opfindelsen stiller sig på baggrund af den anførte kendte teknik den opgave at frembringe en fremgangsmåde til fremstilling af søm af den ovenfor i almindelighed beskrevne art, med hvilken fremgangsmåde sømmene kan fremstilles til 35 forholdsvis lave priser, og ved hvilken der samtidig kanIn accordance with the prior art, the invention aims to provide a method for producing seams of the kind generally described above, with which method the seams can be made at relatively low prices and at the same time that
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3 opnås visse fordele med hensyn til slutproduktets kvalitet.3, certain advantages are obtained with regard to the quality of the final product.
Denne opgave løses ved en fremgangsmåde, som ifølge opfindelsen er særegen ved, at i et første valsningstrin valses 5 en råstav med fortrinsvis cirkulært tværsnit på kendt måde i længderetningen på flere på omkredsen fordelte steder under tværsnitsformindskelse, for ved kolddeformering at danne forstærkede længdezoner og derimellem konvekse henholdsvis vulstformede, radialt fremspringende længdezoner før en 10 i et andet valsningstrin foregående anbringelse af en profilering, og at overvejende på disse konvekse længdezoner i et andet valsetrin under anvendelse af valser, hvis kappeflader er forsynet med prægematriceudsparinger svarende til de i det væsentlige delkegleformede fremspring, der skal 15 dannes, frembringes disse fremspring i en sådan anbringelse og i en sådan gensidig afstand, at det færdige sømråemnes tværsnitsareal over dets længde i hvert punkt er i det væsentlige ens, og at sømråemnet derefter skæres i stykker, og af disse dannes de færdige søm ved udformning af et ho-20 ved.This problem is solved by a method which according to the invention is peculiar in that in a first rolling step 5 a raw rod of preferably circular cross section is rolled longitudinally in several circumferentially spaced locations, in order to form reinforced longitudinal zones and in between, in cold deformation. convex and bead-shaped, radially protruding longitudinal zones, respectively, prior to applying a profiling in a second rolling step, and predominantly on these convex longitudinal zones in a second rolling step, using rollers whose casing surfaces are provided with embossed die cutouts substantially equal to those substantially shaped to be formed, these projections are formed in such a position and at such a mutual distance that the cross-sectional area of the finished seam across its length at each point is substantially equal, and that the seam is then cut, and from these they are formed. fool ready seam when designing a high-20 wood.
En foretrukken fremgangsmåde til fremstilling af sømemner er kendetegnet ved, at råemnerne i et første valsningstrin tværsnitsformindskes med 10-20%, fortrinsvis ca. 15%.A preferred method of making seam blanks is characterized in that the blanks in a first rolling step are cut cross-sectionally by 10-20%, preferably approx. 15%.
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Denne tværsnitsformindskelse sker fordelagtigt på kendt måde i det første valsningstrin ved påvalsning af plane overfladezoner.This cross-sectional reduction advantageously occurs in a known manner in the first rolling step by rolling flat surface zones.
30 Fordelagtigvis sker der i det andet valsningstrin en arealformindskelse på 10-20%, fortrinsvis ca. 15%.Advantageously, in the second rolling step there is an area reduction of 10-20%, preferably approx. 15%.
Opfindelsen vedrører endvidere søm med i det væsentlige delkegleformede, skælagtige fremspring langs sømskaftets 35 hele længde eller hovedparten af denne længde, hvilke frem-The invention further relates to nails having substantially partial cone-shaped, bony projections along the entire length of the seam shaft 35, or most of this length, which are formed.
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4 springs spidser er rettet mod sømspidsen, og hvor fremspringene fortrinsvis er anbragt langs en skruelinie (helix) omkring sømskaftet, idet disse søm ifølge opfindelsen er kendetegnet ved, at der mellem på omkredsen ved si-5 den af hinanden anbragte fremspring er dannet i det mindste smalle længdezoner, som er koldforstærket ved valsning.4 seam tips are directed towards the seam tip and the projections are preferably arranged along a helix around the seam shaft, these seams of the invention being characterized in that protrusions arranged on the circumference at the side of each other are formed in the seam. smallest narrow length zones which are cold-reinforced by rolling.
Ifølge en foretrukken udførelsesform går de smalle, kold-. forstærkede zoner jævnt over i de overfladezoner, som bærer 10 de delkegleformede fremspring, hvorved fordelagtigvis også de smalle koldforstærkede længdezoner i det væsentlige er medindbefattet i de delkegleformede fremsprings profilform.According to a preferred embodiment, they go narrow, cold. reinforced zones evenly over into the surface zones which carry the partial cone-shaped projections, whereby preferably also the narrow cold-reinforced longitudinal zones are substantially included in the profile cone of the partial cone-shaped projections.
Fremgangsmåden ifølge opfindelsen beskrives i det følgende 15 nærmere ved hjælp af tegningen, hvor:The method according to the invention is described in the following with the aid of the drawing, in which:
Fig. 1 er et skematisk samlet billede af et valseværk til fremstilling af søm fremstillet ved fremgangsmåden ifølge opfindelsen, 20 fig. 2 er et skematisk delsnitbillede· af tre samvirkende valser i det i fig. 1 viste valseværk, fig. 3 er et skematisk perspektivbillede af et sømråemne 25 under bearbejdningen i det i fig. 1 viste valse værk, fig. 4a, 4b, 4c er skematiske tværsnit i råemnet i fig. 3 i planerne 4a-4a, 4b-4b henholdsvis 4c-4c i fig.FIG. Fig. 1 is a schematic overall view of a rolling mill for making nails made by the method of the invention; 2 is a schematic partial sectional view of three cooperating rollers in the embodiment of FIG. 1; FIG. 3 is a schematic perspective view of a seam blank 25 during machining in the FIG. 1; FIG. 4a, 4b, 4c are schematic cross-sectional views of the blank of FIG. 3 in planes 4a-4a, 4b-4b and 4c-4c respectively in FIG.
30 3, fig. 5 viser skematisk og i større målestok en del af et aksialt længdesnit i et færdigvalset sømråemne, 35 fig- 6, 6a, 6b er skematiske tværsnit i et råemne i et30, FIG. 5 shows schematically and on a larger scale part of an axial longitudinal section of a finished rolled seam blank; FIGS. 6, 6a, 6b are schematic cross-sections of a blank of a blank.
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5 første og et andet valsningstrin af en anderledes fremgangsmåde, og fig. 7 og 7a er et deltværsnit i et valsningsprofil hen-5 holdsvis et snit i et mellemråemne, som blev dan net i det første trin som vist i fig. 6a.5 shows a first and a second rolling step of a different method, and FIG. 7 and 7a are a partial cross-section of a rolling profile, respectively, a section of an intermediate blank formed in the first step as shown in FIG. 6a.
Fig. 1 viser i skeftiatisk fremstilling en valseudrustning, som omfatter en oplagringstromle 10, en rettemaskine 11, et 10 profilvalseværk 12 med to valsestel A og B, en drivstation 13 og en spoletromle 14. Et sømråemne føres gennem udrustningen i retning af pilen 15 i fig. 1. Den samme gennemføringsretning er i fig. 3 vist med pilen 16.FIG. 1 shows, in skeptical form, a rolling equipment comprising a storage drum 10, a straightening machine 11, a 10 profile rolling mill 12 with two roller sets A and B, a drive station 13 and a coil drum 14. A seam blank is passed through the equipment in the direction of arrow 15 in FIG. 1. The same direction of passage is shown in FIG. 3 shown by arrow 16.
15 Under henvisning til fig. 1 og 3 foregår valseprocessen på følgende måde.15 Referring to FIG. 1 and 3, the rolling process is carried out as follows.
Råmaterialet, som fortrinsvis har cirkelformet tværsnit (fig. 4a), kommer fra rettemaskinen 11 ind i valseværkets 20 12 første valsestel A, hvorved det får et tværsnit, som om fatter et antal (i det foreliggende tilfælde 3) på omkredsen fordelte affladninger, mellem hvilke der består konvekse zoner 17 (fig. 4b), som i det væsentlige længdevulstag-tige zoner. Under dette valsningstrin sker der i råemnets 25 indre en plastisk materialeflydning både på tværs og på langs, hvilken materialeflydning således ytrer sig i en ændring af tværsnitsformen og også i en forlængelse af råemnet svarende til en tværsnitsformindskelse på 10-20%, fortrinsvis ca. 15%.The raw material, which preferably has a circular cross-section (Fig. 4a), enters from the straightener 11 into the first rolling frame A of the rolling mill 20 12, thereby obtaining a cross section, which comprises a number (in the present case 3) of circumferentially distributed discharges, between which comprise convex zones 17 (Fig. 4b), which are essentially longitudinally volatile zones. During this rolling step, a plastic material flow occurs both internally and longitudinally within the blank 25, which material thus manifests itself in a change in the cross-sectional shape and also in an extension of the blank according to a cross-sectional reduction of 10-20%, preferably approx. 15%.
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Herefter udføres et andet valsningstrin i valsestellet B, hvor der på zonerne 17 påpræges i det væsentlige delkegleformede fremspring 19 ved hjælp af valser 20, 21, 22 (fig.Next, another rolling step is carried out in the roller frame B, where zones of substantially cone-shaped projections 19 are projected by means of rollers 20, 21, 22 (FIG.
1 og 2), hvis mod hinanden vendende kappeflader er forsynet 35 med prægematricehulrum med en udformning, der svarer til de1 and 2) if facing surfaces are provided with embossing die cavities having a configuration similar to the
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6 i det væsentlige delkegleformede fremsprings 19 form. Også i dette tilfælde sker der en vis tværsnitsformindskelse, nemlig i størrelsesordenen 10-20%, fortrinsvis ca. 15%. Ved dette trin er det væsentligt, at valserne 20, 21, 22 rote-5 rer synkront, og at deres prægematricehulrum er således udformet og således anbragt, at råemnets tværsnitsflade (efter valsestellet B) er i det væsentlige konstant langs råemnets hele længde uanset stedet, hvor snittet foretages, . hvorved tværsnittets faktiske form varierer alt efter de i 10 det væsentlige delkegleformede fremspring.6 is essentially part cone-shaped projections 19. In this case, too, some cross-sectional reduction occurs, in the order of 10-20%, preferably approx. 15%. At this step, it is essential that the rollers 20, 21, 22 rotate synchronously and that their embossing die cavities are so designed and arranged that the cross-sectional surface of the blank (after roll frame B) is substantially constant along the entire length of the blank regardless of the location. , where the cut is made,. whereby the actual shape of the cross section varies according to the substantially partial cone-shaped projections.
Fig. 5 er en skematisk fremstilling af et dellængdesnit i sømråemnet og viser detaljer i formen på de i det væsentlige delkegleformede fremspring. Der skal agtes på, at vin-15 klen 23 mellem delkeglens basis og midterlinien CL andrager mellem 75 og 90° fortrinsvis ca. 85°, hvorimod vinklen 24 mellem delkeglens kappe og råemnets midterlinie CL andrager 5-15° fortrinsvis.ca. 10 °.FIG. 5 is a schematic representation of a part length cut in the seam blank showing details of the shape of the substantially partial cone-shaped projections. It should be noted that the angle 23 between the base of the part cone and the center line CL is between 75 and 90 °, preferably approx. 85 °, whereas the angle 24 between the part of the cone and the center line CL of the blank is 5-15 ° preferably.ca. 10 °.
20 Under henvisning især til fig. 2 skal det bemærkes, at den perifere randdel af profilvalserne 20, 21, 22 ikke udfylder helt, men har en halvvinkel med koniciteten. 59° for at frembyde bestemte indstillingsmuligheder.Referring especially to FIG. 2, it should be noted that the peripheral rim portion of the profile rollers 20, 21, 22 does not completely fill, but has a half angle with the conicity. 59 ° to provide certain setting options.
25 Modificeringer og ændringer med hensyn til detaljer kan udføres uden at afvige fra opfindelsen rammer.Modifications and modifications to details may be made without departing from the scope of the invention.
Således er det, som det vises i fig. 6 og 6b, også muligt at underkaste et råemne 30 med i det væsentlige cirkelfor-30 mede tværsnit et længderiflings- eller notningstrin, som vist i fig. 6a, hvilket sker ved hjælp af tre eller et eller andet egnet antal ruller 31, 32, 33, som er fordelt langs omkredsen ensartet i afstand. Disse ruller strækker råemnet og danner derved længdeoverfladezoner, som koldfor-35 stærkes ved den derpå udøvede valsevirkning. Så valses rå-Thus, as shown in FIG. 6 and 6b, it is also possible to subject a blank 30 with substantially circular cross-section a longitudinal or groove step, as shown in FIG. 6a, which is effected by means of three or some suitable number of rollers 31, 32, 33, which are distributed along the circumference uniformly spaced. These rollers extend the blank, thereby forming longitudinal surface zones which are cold-reinforced by the rolling effect then applied. Then the raw is rolled
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7 emnet yderligere i et andet valsningstrin ved hjælp af præ-gematricerullerne 37, 38, 39 (fig. 6b), som ligner de ovenfor beskrevne prægevalser. Valsningsprocessen i det andet trin (fig. 6b) udføres på en sådan måde, at de riflede 5 overflader 34, 35, 36 næsten igen antager flad henholdsvis udad hvælvet form.7, the blank further in another rolling step by means of the pre-die rollers 37, 38, 39 (Fig. 6b), which are similar to the embossing rolls described above. The rolling process of the second step (Fig. 6b) is carried out in such a way that the knurled surfaces surfaces 34, 35, 36 almost again assume flat or outwardly vaulted shape.
Sammenlignet med den første udførelsesform resulterer denne anden udførelsesform i en langt større materialeflydning, 10 en bedre forstærkning af materialet ved valsning og et væsentligt højere materialeudbytte, det vil sige en forhøjet mængde søm med forbedret ydelse pr. kg råmateriale.Compared to the first embodiment, this second embodiment results in a much greater material flow, a better reinforcement of the material by rolling and a significantly higher material yield, that is, an increased amount of nails with improved performance per unit. kg of raw material.
Det blev ovenfor omtalt, at råemnerne tværsnitsformindskes 15 og strækkes. Disse parametre kan beregnes som følger: R = tværsnitsarealformindskelse i % LR = forlængelse på grund af tværsnitsarealformindskelsen F1 = tværsnitsareal på det indgående råemne 20 F2 - tværsnitsareal af det udgående råemne VI = indgangsvolumen V2 = udgangsvolumen Dl = indgangsdiameter Dl = udgangsdiameter 25It was mentioned above that the blanks are cut cross-sectionally and stretched. These parameters can be calculated as follows: R = cross-sectional area reduction in% LR = elongation due to cross-sectional reduction F1 = cross-sectional area of the incoming blank 20 F2 - cross-sectional area of the outgoing blank VI = input volume V2 = output volume D1 = input diameter D1 = input diameter D1
TværsnitsarealformindskelseTværsnitsarealformindskelse
Fl - F2 R = Fl x 100 = ...% reduktion 30Fl - F2 R = Fl x 100 = ...% reduction 30
ForlængelseExtension
VI = V2 x LRVI = V2 x LR
VI Dl2 x Tt/4 x L Dl2 35 LR = V2 = D22 x it/4 x L * D22 = ....%VI Dl2 x Tt / 4 x L Dl2 35 LR = V2 = D22 x it / 4 x L * D22 = ....%
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88
Eksempel: indgående råemne 5,0 mm diameter indgående råemne 4,5 mm diameter 5 19,6 - 16 R =, 19,6 x 100 = 18,3% reduktion 10 5^ _25Example: incoming blank 5.0 mm diameter incoming blank 4.5 mm diameter 5 19.6 - 16 R =, 19.6 x 100 = 18.3% reduction 10 5 ^ _25
Forlængelse LR = 4,52 = 20,25 = 1,234 = 23,4%Extension LR = 4.52 = 20.25 = 1.234 = 23.4%
Det blev ovenfor antaget, at der anvendes et råemne med i 15 det væsentlige cirkulært tværsnit.It was assumed above that a blank having a substantially circular cross section is used.
Hvis det er muligt at gå ud fra et råemne med i længderetningen affladede eller riflede overflader, og kun udføre det andet valsningstrin som beskrevet ovenfor, vil dette 20 naturligvis falde inden for rammerne for opfindelsen.If it is possible to proceed from a blank with longitudinally flattened or grooved surfaces and to perform only the second rolling step as described above, this will naturally fall within the scope of the invention.
I den efterfølgende tabel vises sammenhængen mellem det i fig. 7 og 7a viste valsningsprofil henholdsvis mellemråem-ner med forskellige diametre.In the following table, the relationship between the one shown in FIG. 7 and 7a show different profiles with different diameters.
25 '25 '
TABELTABLE
Råemne Radius Dybde (diameter i mm) R i mm D^ i mm 30 2,1 eller 2,5 0,4 0,15 2,8 eller 3,1 0,6 0,30 3,4 eller 3,7 0,8 0,50 4,0 eller 4,3 1,0 0,65Raw material Radius Depth (diameter in mm) R in mm D ^ in mm 2.1 or 2.5 0.4 0.15 2.8 or 3.1 0.6 0.30 3.4 or 3.7 0 , 8 0.50 4.0 or 4.3 1.0 0.65
Claims (11)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7808672A SE7808672L (en) | 1978-08-16 | 1978-08-16 | METHOD OF PROCEDURE FOR MANUFACTURING Nails |
| SE7808672 | 1978-08-16 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| DK330279A DK330279A (en) | 1980-02-17 |
| DK162264B true DK162264B (en) | 1991-10-07 |
| DK162264C DK162264C (en) | 1992-03-16 |
Family
ID=20335595
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK330279A DK162264C (en) | 1978-08-16 | 1979-08-07 | PROCEDURE FOR MANUFACTURING SEEM AND SEEM MANUFACTURED BY THE PROCEDURE |
Country Status (21)
| Country | Link |
|---|---|
| JP (1) | JPS5548439A (en) |
| AR (1) | AR217951A1 (en) |
| AT (1) | AT378928B (en) |
| AU (1) | AU4988879A (en) |
| BE (1) | BE878236A (en) |
| BR (1) | BR7905219A (en) |
| DD (1) | DD145506A5 (en) |
| DE (1) | DE2932964A1 (en) |
| DK (1) | DK162264C (en) |
| ES (2) | ES483406A0 (en) |
| FI (1) | FI792530A (en) |
| FR (1) | FR2435303A1 (en) |
| GB (1) | GB2034223B (en) |
| GR (1) | GR69723B (en) |
| IT (1) | IT1122763B (en) |
| NL (1) | NL7906083A (en) |
| NO (1) | NO168631C (en) |
| PL (1) | PL217788A1 (en) |
| PT (1) | PT70057A (en) |
| SE (1) | SE7808672L (en) |
| ZA (1) | ZA794128B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0042657A1 (en) * | 1980-06-19 | 1981-12-30 | Rylands-Whitecross Limited | Improvements in or relating to nails |
| SE428049B (en) * | 1981-09-28 | 1983-05-30 | Nordisk Kartro Ab | SPECT TYPE BODY AND PROCEDURE FOR ITS MANUFACTURING |
| DE3422841A1 (en) * | 1983-06-29 | 1985-01-03 | Friedrich Trurnit GmbH & Co KG Drahtstifte- und Metallwaren-Fabrik Kunststoffverarbeitung, 5990 Altena | Hook nail |
| US4739551A (en) * | 1986-07-14 | 1988-04-26 | Emerson Electric Co. | Hermetic terminal assembly pin and method and apparatus for making the same |
| US4800746A (en) * | 1987-10-19 | 1989-01-31 | Frank Potucek | Machine and method for making star shaped fasteners |
| US4833906A (en) * | 1987-10-19 | 1989-05-30 | Star Fasteners International, Inc. | Machine for making star-shaped fasteners |
| US5542886A (en) * | 1994-07-25 | 1996-08-06 | Jewett Automation, Inc. | Process and apparatus for the production of star profile nails |
| US6780116B2 (en) | 2001-08-13 | 2004-08-24 | Kennametal Inc. | Wear resistant nail manufacturing tool inserts |
| US7857824B2 (en) | 2002-09-20 | 2010-12-28 | Southmedic Inc. | Surgical scalpel with retractable guard |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE94889C (en) * | ||||
| GB330409A (en) * | 1929-02-27 | 1930-06-19 | Herbert Baines | Improvements in and relating to the manufacture of wires and the like |
| US2291751A (en) * | 1940-05-02 | 1942-08-04 | Parker Kalon Corp | Manufacture of fastener devices |
| BE637634A (en) * | 1962-09-21 | |||
| DE2656277A1 (en) * | 1976-12-11 | 1978-06-15 | Fels Werke Peine Salzgitter | Cold rolled concrete reinforcing wire - has triangular cross section with corners compressed by second set of rollers |
-
1978
- 1978-08-16 SE SE7808672A patent/SE7808672L/en unknown
-
1979
- 1979-08-07 DK DK330279A patent/DK162264C/en not_active IP Right Cessation
- 1979-08-08 ZA ZA00794128A patent/ZA794128B/en unknown
- 1979-08-09 NL NL7906083A patent/NL7906083A/en not_active Application Discontinuation
- 1979-08-10 JP JP10273079A patent/JPS5548439A/en active Pending
- 1979-08-13 PT PT70057A patent/PT70057A/en unknown
- 1979-08-13 NO NO792634A patent/NO168631C/en unknown
- 1979-08-14 AU AU49888/79A patent/AU4988879A/en not_active Abandoned
- 1979-08-14 IT IT25114/79A patent/IT1122763B/en active
- 1979-08-14 FR FR7920664A patent/FR2435303A1/en active Pending
- 1979-08-14 DE DE19792932964 patent/DE2932964A1/en active Granted
- 1979-08-14 BE BE0/196727A patent/BE878236A/en unknown
- 1979-08-14 ES ES483406A patent/ES483406A0/en active Granted
- 1979-08-14 AT AT0551879A patent/AT378928B/en not_active IP Right Cessation
- 1979-08-15 FI FI792530A patent/FI792530A/en not_active Application Discontinuation
- 1979-08-15 BR BR7905219A patent/BR7905219A/en unknown
- 1979-08-15 GB GB7928441A patent/GB2034223B/en not_active Expired
- 1979-08-15 DD DD79214989A patent/DD145506A5/en unknown
- 1979-08-16 PL PL21778879A patent/PL217788A1/xx unknown
- 1979-08-16 AR AR277762A patent/AR217951A1/en active
-
1980
- 1980-06-16 ES ES1980251424U patent/ES251424Y/en not_active Expired
- 1980-08-13 GR GR59827A patent/GR69723B/el unknown
Also Published As
| Publication number | Publication date |
|---|---|
| NL7906083A (en) | 1980-02-19 |
| SE7808672L (en) | 1980-02-17 |
| ES8100922A1 (en) | 1980-12-01 |
| JPS5548439A (en) | 1980-04-07 |
| FR2435303A1 (en) | 1980-04-04 |
| IT1122763B (en) | 1986-04-23 |
| DD145506A5 (en) | 1980-12-17 |
| DE2932964C2 (en) | 1990-01-11 |
| BE878236A (en) | 1979-12-03 |
| ES251424U (en) | 1981-02-16 |
| FI792530A (en) | 1980-02-17 |
| DK330279A (en) | 1980-02-17 |
| DK162264C (en) | 1992-03-16 |
| ATA551879A (en) | 1985-03-15 |
| GB2034223A (en) | 1980-06-04 |
| PT70057A (en) | 1979-09-01 |
| ES251424Y (en) | 1981-09-16 |
| NO168631C (en) | 1992-03-18 |
| AT378928B (en) | 1985-10-25 |
| AU4988879A (en) | 1980-02-21 |
| DE2932964A1 (en) | 1980-02-28 |
| IT7925114A0 (en) | 1979-08-14 |
| BR7905219A (en) | 1980-04-29 |
| NO792634L (en) | 1980-02-19 |
| NO168631B (en) | 1991-12-09 |
| GR69723B (en) | 1982-07-09 |
| ZA794128B (en) | 1980-08-27 |
| AR217951A1 (en) | 1980-04-30 |
| GB2034223B (en) | 1982-11-10 |
| ES483406A0 (en) | 1980-12-01 |
| PL217788A1 (en) | 1980-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |