AT25517B - Rotary crane with fixed central column. - Google Patents

Rotary crane with fixed central column.

Info

Publication number
AT25517B
AT25517B AT25517DA AT25517B AT 25517 B AT25517 B AT 25517B AT 25517D A AT25517D A AT 25517DA AT 25517 B AT25517 B AT 25517B
Authority
AT
Austria
Prior art keywords
fixed central
central column
foundation
rotary crane
base
Prior art date
Application number
Other languages
German (de)
Original Assignee
Benrather Maschinenfabrik Acti
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 Benrather Maschinenfabrik Acti filed Critical Benrather Maschinenfabrik Acti
Application granted granted Critical
Publication of AT25517B publication Critical patent/AT25517B/en

Links

Landscapes

  • Jib Cranes (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Drehkran   mit feststehender Mittelsäule.   
 EMI1.1 
 in dieser Weise zu lagern, da die auf das   Fundament wirkenden Kräfte zu gross werden.   



   Fig. 2 zeigt die Befestigung eines Königstockes in einem mit dem   Fundament   fest   verankerten gusseisernen   oder schmiedeeisernen Stern. It dieser Konstruktion wirken infolge des Kippmomentes Zug- und Druckkräfte auf das Fundament ein. Um diese auf das Fundament wirkenden Kräfte zn vermeiden, ging man bei kleinen Kranen schon dazu   über, den   Stern so gross auszubilden, dass keine Zugkriifte im Fundament auftraten.   In   diesen   Fällen   wurde aber stets ein schmiedeeiserner Königstock in einen Fnndamentstern eingesetzt. 



   Die vorliegende Erfindnng bezweckt nun, alle   Zugkräfte auf   das Fundament zu vermeiden, und zwar ohne Anwendung eines   Fundamentsternes.   Zu diesem Zwecke wurde der   Konigstock   bezw. die feststehende Mittelsäule aus einer Eisenkonstruktion hergestellt, deren untere Basis so gross gehalten ist, dass nur Druckkräfte und keine Zuglrräfte auf das 
 EMI1.2 
 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Rotary crane with fixed central column.
 EMI1.1
 to be stored in this way, as the forces acting on the foundation are too great.



   Fig. 2 shows the attachment of a king stick in a cast iron or wrought iron star firmly anchored to the foundation. With this construction, tensile and compressive forces act on the foundation as a result of the tilting moment. In order to avoid these forces acting on the foundation, in the case of small cranes one went over to making the star so large that no tensile forces occurred in the foundation. In these cases, however, a wrought-iron king stick was always inserted into a foundation star.



   The present invention now aims to avoid all tensile forces on the foundation, without using a foundation star. For this purpose the Konigstock was respectively. The fixed central column is made of an iron construction, the lower base of which is so large that only compressive forces and no tensile forces on the
 EMI1.2
 

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Drehkran mit feststohender Mittelsäule, dadurch gekennzeichnet, dass diese Mittolsäule aus einer Eisenkonstruktion bestehlt, deren Basis so gross gehalten ist, dass der relative Schwerpunkt des gesamten, sowohl belasteten wio unbelasteten Kransystemes innerhalb dieser Basis zu liegen kommt, zum Zwecke, auch ohne Verwendung eines besonderen Sternes das Auftreten von Zugkräften im Fundament zu verhindern. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Slewing crane with a fixed central pillar, characterized in that this central pillar consists of an iron construction, the base of which is so large that the relative center of gravity of the entire crane system, both loaded and unloaded, comes to lie within this base, for the purpose as well to prevent the occurrence of tensile forces in the foundation without using a special star. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT25517D 1905-06-19 1905-06-19 Rotary crane with fixed central column. AT25517B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT25517T 1905-06-19

Publications (1)

Publication Number Publication Date
AT25517B true AT25517B (en) 1906-08-25

Family

ID=3536295

Family Applications (1)

Application Number Title Priority Date Filing Date
AT25517D AT25517B (en) 1905-06-19 1905-06-19 Rotary crane with fixed central column.

Country Status (1)

Country Link
AT (1) AT25517B (en)

Similar Documents

Publication Publication Date Title
AT25517B (en) Rotary crane with fixed central column.
AT139335B (en) Iron girder.
AT82424B (en) Saddle ties.
AT102783B (en) Bed fitting or the like
DE728557C (en) bearings
AT158825B (en) Bearing bush for hinge pin.
AT37297B (en) Coffin lintel.
AT60934B (en) Foundation for masts for electrical lines or the like.
AT25661B (en) Method and device for clearing sandbanks, deepening and flooding river beds, etc.
AT74416B (en) Facility for the manufacture of reinforced concrete masts on the spot.
AT37667B (en) Entrenchment.
AT78037B (en) Bracing of the supporting decks of double or multi-deckers.
AT21327B (en) Composable box girder made of reinforced concrete.
AT65682B (en) Dismountable iron bridge.
AT24672B (en) Stake for tents etc. like
AT99062B (en) Foundation for waterless gas containers.
AT57163B (en) Reinforced concrete hollow body.
AT66322B (en) Cross arm for insulation masts.
AT65623B (en) Reinforced concrete ceiling.
AT113209B (en) Cantilever, level or arched space-enclosing component.
AT53775B (en) Lattice mast.
AT26521B (en) Swing.
AT323056B (en) LOADING LAMP
AT327464B (en) TRANSPORTABLE HOUSE
AT79686B (en) Hollow stone masonry with concrete or reinforced concrete filling.