DE106632C - - Google Patents
Info
- Publication number
- DE106632C DE106632C DENDAT106632D DE106632DA DE106632C DE 106632 C DE106632 C DE 106632C DE NDAT106632 D DENDAT106632 D DE NDAT106632D DE 106632D A DE106632D A DE 106632DA DE 106632 C DE106632 C DE 106632C
- Authority
- DE
- Germany
- Prior art keywords
- edge
- snails
- screws
- rollers
- fact
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 241000237858 Gastropoda Species 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 210000001503 Joints Anatomy 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 230000002093 peripheral Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
- B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Working Implements (AREA)
Description
izmcdKiicn M'.e-nkmuu.izmcdKiicn M'.e-nkmuu.
KAI^KAI ^
PATENTAMT.PATENT OFFICE.
PATENTSCHRIFTPATENT LETTERING
KLASSE 49: Metallbearbeitung, mechanische.CLASS 49: Metalworking, mechanical.
Förderschnecke.Auger.
Patentirt im Deutschen Reiche vom 5. Mai 1898 ab.Patented in the German Empire on May 5, 1898.
Vorliegende Neuerung an Förderschnecken bezieht sich auf eine Verbesserung derselben insofern, als es nach dem bisherigen Herstellungsverfahren, welches darin bestand, dafs die Schnecken aus einzelnen ausgestanzten Ringen, welche an der Seite aufgeschlitzt und aus einander gebogen werden, in der Querrichtung zusammengenietet werden, nicht möglich war, die Schnecken dem Rande zu, welcher infolge der durch die Umfangsgeschwindigkeit vermehrten Reibung bedeutend mehr angegriffen wird als das Innere derselben, so herzustellen, dafs eine gleichmäfsige Abnutzung der ganzen Fläche stattfinden könnte.The present innovation on screw conveyors relates to an improvement of the same insofar as, according to the previous manufacturing process, which consisted in the fact that the snails from individual punched rings, which are slit on the side and be bent from each other, riveted together in the transverse direction, not possible was, the screws to the edge, which as a result of the peripheral speed increased friction is attacked significantly more than its interior, so to establish that an even wear of the whole surface could take place.
Letzteres soll bei der vorliegenden Erfindung dadurch erreicht werden, dafs die Schnecken durch Auswalzen aus geraden Streifen hergestellt werden, und zwar eignen sich zu diesem Zweck z. B. die in den Patentschriften Nr. 21547, 55692, 64571, 87681, sowie die durch die nordamerikanische Patentschrift Nr. 499713 vom 20. Juni 1893 bekannt gewordenen Walzverfahren, mit dem Unterschiede, dafs zur Erreichung des verstärkten Randes die Anwendung keilförmigen Rohmaterials erforderlich wird und dafs die Einstellung der Walzen eine derartige sein mufs, dafs das Material zwar die erforderliche Krümmung annimmt, trotzdem aber eine gewisse Konizität nach dem Rande zu behält. Die Walzen selbst können dabei cylindrisch oder konisch sein und zu zwei oder mehreren Exemplaren neben oder über einander angeordnet werden. Abgesehen davon, dafs bei derartig hergestellten Schnecken die Lebensdauer derselben ganz wesentlich erhöht wird, indem bei Betrieben, in welchen solche Materialien gefördert werden, welche vermöge ihrer Beschaffenheit die Schnecken stark angreifen, wie z. B. in Gyps-, Schlacken- oder Salzmühlen, tritt für andere Betriebe noch der grofse Vortheil hinzu, dafs sowohl die Niete als auch die Querstöfse an den Verbindungsstellen, welche nach den bisherigen Herstellungsverfahren nicht zu umgehen waren, in Wegfall kommen, wodurch die Schnecken geeignet werden, auch Materialien zu fördern, welche, wie z. B. Krystallzucker und andere Salze u. s.~ w., sehr empfindlich in Bezug auf Zerreiben und sonstige Beschädigung sind.The latter is to be achieved in the present invention in that the screws are made by rolling out of straight strips, namely are suitable for for this purpose z. B. those in Patent Nos. 21547, 55692, 64571, 87681, and the by North American Patent No. 499713 dated June 20, 1893 Rolling process, with the difference that to achieve the reinforced Edge the use of wedge-shaped raw material is required and that the setting of the rollers must be such that the material admittedly has the required curvature assumes, but still retains a certain taper towards the edge. The rollers themselves can be cylindrical or be conical and arranged in two or more copies next to or on top of each other will. Apart from the fact that the life span of screws manufactured in this way the same is very substantially increased by in factories in which such materials be promoted, which by their nature strongly attack the snails, such as z. B. in gypsum, slag or salt mills, there is still a great advantage for other operations in addition, both the rivets and the transverse joints at the connection points, which were made according to the previous manufacturing processes could not be circumvented, come in elimination, making the snails suitable will also promote materials which, such as. B. Crystal sugar and other salts and so on, are very sensitive to abrasion and other damage.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE106632C true DE106632C (en) |
Family
ID=376779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT106632D Active DE106632C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE106632C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE947696C (en) * | 1952-09-21 | 1956-08-23 | Wurag Eisen Und Stahlwerke Ag | Method and device for producing coils with a thicker cross-section on the inside diameter |
| DE1013610B (en) * | 1955-10-28 | 1957-08-14 | Goetzewerke | Method of manufacturing piston rings |
-
0
- DE DENDAT106632D patent/DE106632C/de active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE947696C (en) * | 1952-09-21 | 1956-08-23 | Wurag Eisen Und Stahlwerke Ag | Method and device for producing coils with a thicker cross-section on the inside diameter |
| DE1013610B (en) * | 1955-10-28 | 1957-08-14 | Goetzewerke | Method of manufacturing piston rings |
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