DE390772C - Wrought iron davit arm with separate z. B. made of cast steel tooth sector - Google Patents

Wrought iron davit arm with separate z. B. made of cast steel tooth sector

Info

Publication number
DE390772C
DE390772C DEK84527D DEK0084527D DE390772C DE 390772 C DE390772 C DE 390772C DE K84527 D DEK84527 D DE K84527D DE K0084527 D DEK0084527 D DE K0084527D DE 390772 C DE390772 C DE 390772C
Authority
DE
Germany
Prior art keywords
separate
cast steel
arm
wrought iron
davit arm
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
Application number
DEK84527D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fried Krupp Germaniawerft AG
Original Assignee
Fried Krupp Germaniawerft AG
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.)
Filing date
Publication date
Application filed by Fried Krupp Germaniawerft AG filed Critical Fried Krupp Germaniawerft AG
Priority to DEK84527D priority Critical patent/DE390772C/en
Application granted granted Critical
Publication of DE390772C publication Critical patent/DE390772C/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B23/00—Equipment for handling lifeboats or the like
    • B63B23/02—Davits, i.e. devices having arms for lowering boats by cables or the like
    • B63B23/04—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type
    • B63B23/06—Davits, i.e. devices having arms for lowering boats by cables or the like with arms pivoting on substantially horizontal axes, e.g. gravity type with actual pivots

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Description

Schmiedeeiserner Davitarm mit gesondert z. B. aus Stahlguß hergestelltem Zahnsektor. Die Erfindung betrifft einen schmiedeeisernen Davitarm für Bootsaussetzvorrich tungen.Wrought iron davit arm with separate z. B. made of cast steel Dental sector. The invention relates to a wrought iron davit arm for boat launching devices services.

Auf der Zeichnung ist der Gegenstand der Erfindung in einem Ausführungsbeispiel dargestellt, und zwar zeigen die drei Abbildungen den Davitarm in drei Herstellungsabschnitten in Seitenansicht.In the drawing, the subject of the invention is in one embodiment shown, namely the three figures show the davit arm in three stages of manufacture in side view.

Der fertige Davitarm (Abb. 3) besteht aus zwei Teilen. Den einen Teil bildet der sich nach oben verjüngende volle schmiedeiserne Auslegerarm A, der Kreisquerschnitt besitzt und, unmittelbar in die mit ihm aus einem Stück hergestellten. Speichenarme &, & vou rechteckigem -Querschnitt übergeht. Den anderen Teil bildet der Zahnsektor B, der zweckmäßig aus Stahlguß hergestellt ist; bei züsanünengesetzter Bootsaussetzvorrichtung steht er mit einer auf der Zeichnung nicht dargestellten, am: Davitgestell fest angeordneten Zahnstange in, Eingriff und rollt bei der Bedienung des Davits auf ihr ab.The finished davit arm (Fig. 3) consists of two parts. One part the upwardly tapering full wrought-iron cantilever arm A forms the circular cross-section owns and, directly in those made from one piece with him. Spoke arms &, & vou the rectangular cross-section. The other part is formed by the Tooth sector B, which is expediently made of cast steel; at züsanünengesetze Boat launching device he stands with a not shown in the drawing, on: Davit frame fixed rack in, engages and rolls when operated of the davit on her.

Die Erfindung besteht darin, daß der Arm A, &, a2 in der Weise hergestellt ist, daß ihm zunächst durch Schmieden die aus Abb. a ersichtliche,, von der Bohrung C für die Schwing achse des Davitarmes aus nach oben und, unten sich verjüngende Gestalt gegeben wird, wobei der oberhalb der Bohrung C liegende Teil kreisrunden, der unterhalb von ihr liegende Teil im wesentlichen quadratischen Querschnitt besitzt. Der stärkere untere Teil w'i'rd sodann nach der Linie x-y aufgesägt, und die so entstehenden Arme a1 und a2, die nach unten hin kleiner werdenden rechteckigen Querschnitt haben, werden, wie in. Abb.2 dargestellt ist, auseinandergebogen. Sie bilden die beiden Speichenarme für den Zahnkranz B, der in der aus Abb.3 ersichtlichen Weise durch Vernieten oder Verschrauben mit den Enden der Speichenarme a1, a2 fest verbunden ist. Die Winkelstellung der Arme a1, a2 untereinander und zum Davitarm A wird je nach den Ver-. hältnissen verschieden zu wählen sein. Bei dem in Abb.3 dargestellten Davitarm bildet der Speichenarm a1 die unmittelbare geradlinige Fortsetzung des Armes A.The invention consists in that the arm A, &, a2 is made in such a way that it is first by forging the apparent from Fig. A ,, from the hole C for the swing axis of the davit arm up and down tapering Shape is given, the part lying above the bore C being circular, the part lying below it having a substantially square cross-section. The thicker lower part is then sawn open along the line xy, and the arms a1 and a2 thus created, which have a rectangular cross-section that decreases towards the bottom, are bent apart, as shown in Fig.2. They form the two spoke arms for the ring gear B, which is firmly connected to the ends of the spoke arms a1, a2 in the manner shown in Fig. 3 by riveting or screwing. The angular position of the arms a1, a2 to each other and to the davit arm A is depending on the. different conditions to be chosen. In the davit arm shown in Fig. 3, the spoke arm a1 forms the direct straight line continuation of the arm A.

Claims (1)

PATENT-ANSPRUcn: Schmiedeeiserner Davitarm mit gesondert z. B. aus StahlguB hergestelltem Zahnsektor, dadurch gekennzeichnet, daB der Auslegerarm (A) samt den Speichenarmen (a1, a2) des Zahnsektors (B) aus einem Schmiedestück derart hergestellt ist, daB die Speichenarme (a1, a2) aus dem entsprechend stärker bemessenen unteren Teil des Schmiedestückes durch Aufspalten und Auseinanderbiegen des Materials gebildet werden, und daB die unteren Enden dieser Arme mit dem Zahnsektor fest verbunden sind. PATENT CLAIMS: Wrought iron davit arm with separate z. B. A toothed sector made of cast steel, characterized in that the cantilever arm (A) together with the spoke arms (a1, a2) of the toothed sector (B) is made from a forged piece in such a way that the spoke arms (a1, a2) are made from the correspondingly larger lower one Part of the forging can be formed by splitting and bending the material, and that the lower ends of these arms are firmly connected to the tooth sector.
DEK84527D 1923-01-11 1923-01-11 Wrought iron davit arm with separate z. B. made of cast steel tooth sector Expired DE390772C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK84527D DE390772C (en) 1923-01-11 1923-01-11 Wrought iron davit arm with separate z. B. made of cast steel tooth sector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK84527D DE390772C (en) 1923-01-11 1923-01-11 Wrought iron davit arm with separate z. B. made of cast steel tooth sector

Publications (1)

Publication Number Publication Date
DE390772C true DE390772C (en) 1924-02-27

Family

ID=7235103

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK84527D Expired DE390772C (en) 1923-01-11 1923-01-11 Wrought iron davit arm with separate z. B. made of cast steel tooth sector

Country Status (1)

Country Link
DE (1) DE390772C (en)

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