DE68320C - Process for forming the rim on cartridge cases - Google Patents

Process for forming the rim on cartridge cases

Info

Publication number
DE68320C
DE68320C DENDAT68320D DE68320DA DE68320C DE 68320 C DE68320 C DE 68320C DE NDAT68320 D DENDAT68320 D DE NDAT68320D DE 68320D A DE68320D A DE 68320DA DE 68320 C DE68320 C DE 68320C
Authority
DE
Germany
Prior art keywords
edge
transition point
sleeve
pressing
annular groove
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.)
Expired - Lifetime
Application number
DENDAT68320D
Other languages
German (de)
Original Assignee
GRUSONWERK in Magdeburg-Buckau
Priority date (The priority date 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 date listed.)
Publication of DE68320C publication Critical patent/DE68320C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/08Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and acting as a fan

Description

1893.1893.

Wetii, 5Kagbe6urg=5öit<iau SStlbung be§ Sianbeg an ""'V% 92 ΆΙ./&*-**-fP: Wetii, 5Kagbe6urg = 5öit <iau SStlbung be§ Sianbeg an ""'V% 92 ΆΙ ./&*-**- fP:

SSerfaiiren sr ^ülf. SSornjSSerfaiiren sr ^ ülf. SSornj

.C.C

W MW M

Claims (1)

KAISERLICHESIMPERIAL PATENTAMT.PATENT OFFICE. Die vorliegende Erfindung bezweckt, die Herstellung von Patronenhülsen durch Pressen aus einem Stück eines bildsamen Metalles zu vereinfachen.The present invention aims at the manufacture of cartridge cases by pressing from a piece of malleable metal to simplify. Bei der Fabrikation der Hülsen machte bisher das Herauspressen des Randes oder der Krempe besondere Schwierigkeiten, welche das vorliegende Verfahren in Wegfall bringt.In the manufacture of the sleeves, the pressing out of the edge or the Brim special difficulties, which the present method eliminates. Dieses Verfahren beruht darauf, dafs man an der mit gewölbtem Boden und einer Wandverdickung an der Uebergangsstelle versehenen halbfertigen, auf beliebige Art hergestellten Hülse eine Bearbeitung vornimmt und sie dann erst in ihre fertige Gestalt prefst.This method is based on the fact that one provided with a curved bottom and a wall thickening at the transition point semi-finished, manufactured in any way sleeve makes a processing and then it only prefst in their finished form. Fig. ι stellt eine Form dar, in welche die Hülse zunächst in bekannter Art und Weise durch Pressen, Ziehen oder Giefsen gebracht ist. Wie aus der Figur ersichtlich, ist der Boden α stark gewölbt und die Uebergangsstelle b desselben in den cylindrischen Theil etwas verdickt.Fig. Ι shows a form in which the sleeve is first brought in a known manner by pressing, drawing or casting. As can be seen from the figure, the base α is strongly arched and the transition point b thereof into the cylindrical part is somewhat thickened. Man arbeitet nun bei c eine ringförmige Nuth von dem gezeichneten Querschnitt aus, und zwar entweder durch Ausdrehen oder durch Einwalzen mittelst einer passend profilirten, schräg gestellten Scheibe, so dafs die Hülse die in Fig. 2 dargestellte Form erhält. Hierauf wird mittelst geeigneter Stempel und Futter der Boden α eben geprefst; dadurch tritt der Rand d etwas nach aufsen in die in Fig. 3 gezeichnete Form. In manchen Fällen ist es erforderlich, dafs die Hülse noch eine Einschnürung e, wie in Fig. 3, erhält, welche durch Walzen oder Einmangeln erzeugt werden kann.At c an annular groove is made from the cross-section shown, either by turning it out or by rolling it in by means of a suitably profiled, inclined disk, so that the sleeve has the shape shown in FIG. Then the ground α is pressed flat by means of a suitable punch and lining; as a result, the edge d occurs somewhat outwards into the shape shown in FIG. 3. In some cases it is necessary for the sleeve to have a constriction e, as in FIG. 3, which can be produced by rolling or ironing. Soll die Hülse nach ihrer Fertigstellung eine volle Ringwulst im Innern haben, wie durch" Fig. 6 dargestellt, so mufs sich bei der ursprünglichen Form (Fig. 4) die Verstärkung f an der Uebergangsstelle von der Bodenwölbung in den Cylinder auch über den unteren Theil des letzteren erstrecken, damit auch auf der Innenseite eine Ringnuth g ausgearbeitet werden kann und beim Umpressen in die Form Fig. 6 die Ringwulst h stehen bleibt.If the sleeve is to have a full annular bead inside after its completion, as shown by "Fig. 6, then in the original form (Fig. 4) the reinforcement f must also extend over the lower part at the transition point from the bottom arch into the cylinder of the latter so that an annular groove g can also be worked out on the inside and the annular bead h remains when it is pressed into the shape of FIG. 6. Das beschriebene Verfahren hat dem bisher gebräuchlichen gegenüber, bei welchem das Material des Bodens durch ungeheueren Druck zum Fliefsen gebracht werden mufste, damit es seitlich herausquoll und den Rand bildete, den Vortheil, dafs der Rand auf einfache Weise bei niedrigem Druck erzeugt werden kann.The method described has compared to the previously used one, in which the Material of the soil had to be made to flow by tremendous pressure so that it oozed out to the side and formed the edge, the advantage that the edge was easy to access can be generated at low pressure. Pa tent-Anspruch:Patent claim: Verfahren zum Bilden des Randes von Patronenhülsen, dadurch gekennzeichnet, dafs man die cylindrische, mit gewölbtem Boden und einer Wandverdickung an der Uebergangsstelle versehene Hülse auf der Aufsenseite an der Uebergangsstelle mit einer Ringnuth (c) versieht und den Boden (a) flach drückt, wodurch der stehengebliebene .Rand (d) nach aufsen gedrängt wird.Process for forming the edge of cartridge cases, characterized in that the cylindrical case, which is provided with a curved base and a wall thickening at the transition point, is provided with an annular groove (c) on the outside at the transition point and the base (a) is pressed flat, whereby the remaining edge (d) is pushed outwards. Hierzu ι Blatt Zeichnungen.For this purpose ι sheet of drawings.
DENDAT68320D 1894-07-30 Process for forming the rim on cartridge cases Expired - Lifetime DE68320C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB189414611T 1894-07-30

Publications (1)

Publication Number Publication Date
DE68320C true DE68320C (en)

Family

ID=32124875

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT68320D Expired - Lifetime DE68320C (en) 1894-07-30 Process for forming the rim on cartridge cases

Country Status (2)

Country Link
DE (1) DE68320C (en)
GB (1) GB189414611A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE975877C (en) * 1953-05-24 1962-11-15 Kurt Dipl-Ing Juette Injection mill with downstream diverter sifter

Also Published As

Publication number Publication date
GB189414611A (en) 1895-07-27

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