DE105168C - - Google Patents
Info
- Publication number
- DE105168C DE105168C DENDAT105168D DE105168DA DE105168C DE 105168 C DE105168 C DE 105168C DE NDAT105168 D DENDAT105168 D DE NDAT105168D DE 105168D A DE105168D A DE 105168DA DE 105168 C DE105168 C DE 105168C
- Authority
- DE
- Germany
- Prior art keywords
- crane
- counterweight
- load
- resistances
- fixed point
- 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
- 239000002965 rope Substances 0.000 claims description 3
- 230000001050 lubricating Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/72—Counterweights or supports for balancing lifting couples
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
- B66C2700/0392—Movement of the crane arm; Coupling of the crane arm with the counterweights; Safety devices for the movement of the arm
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Um das Kippen von Drehkrä'hnen zu verhüten, benutzt man in der Regel "einen Rollwagen , welcher durch vermehrten Zug am Lastseil auf einer annähernden Parabelbahn nach aufsen gezogen wird. In unbelastetem Zustande rollt der Wagen bis dicht an. den Drehpunkt des Krahnes heran, und hat dann der Krahn eine unnöthig grofse Stabilität.In order to prevent rotating cranes from tipping over, "a trolley" is used as a rule , which is pulled outwards on an approximate parabolic path by increasing the tension on the load rope. In unencumbered The car rolls up close. approach the pivot point of the crane, and then has the crane an unnecessarily great stability.
Der Rollwagen läuft auf Rädern mit Achsen, so dafs der Widerstand gegen das Verschieben des Wagens von dem Zustande der Bahn, der Achsen, der Lager und des Schmiermaterials abhängig ist. Diese Widerstände sind je nach Ausführung und Instandhaltung verschieden grofs, also vorher ziemlich unsicher zu bestimmen. Sind die Widerstände gröfser, als der Constructeur annahm, so zieht der Lastseilzug den Wagen nicht weit genug hinaus, so dafs ein Kippen des Krahnes nach vorn eintreten kann. Sind die Widerstände kleiner, als der Constructeur annahm, so fährt der Wagen zu weit hinaus, und es kann ein Kippen nach hinten eintreten.The trolley runs on wheels with axles, so that the resistance to shifting of the wagon depends on the condition of the track, the axles, the bearings and the lubricating material is. These resistances vary in size depending on the design and maintenance, so to determine beforehand rather uncertain. Are the resistances greater than the constructor suppose the hoist does not pull the wagon far enough for the crane to tip forward. If the resistances are smaller than the designer assumed, the car drives too far out, and backward tilting may occur.
Durch die neue Einrichtung wird der Rollwagen mit seinen Nachtheilen durch ein Gegengewicht α ersetzt, welches einerseits an einem festen Punkt und andererseits am Lastseil schwingend aufgehängt ist. Der Aufhängepunkt ist so weit nach hinten gelegt, dafs der Krahn im unbelasteten Zustande dieselbe Stabilität wie im belasteten Zustande hat.With the new device, the trolley with its disadvantages is replaced by a counterweight α , which is suspended swinging on the one hand at a fixed point and on the other hand on the load rope. The suspension point is so far back that the crane has the same stability in the unloaded condition as in the loaded condition.
Reibungswiderstände, welche auf das Functioniren des Gegengewichtes einwirken könnten, treten am Drehzapfen b nur in solchem Mafse auf, dafs sie rechnungsmäfsig vernachlässigt werden können.Frictional resistances, which could act on the functioning of the counterweight, appear on the pivot b only to such an extent that they can be neglected in the calculation.
Claims (1)
Publications (1)
Publication Number | Publication Date |
---|---|
DE105168C true DE105168C (en) |
Family
ID=375479
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT105168D Active DE105168C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE105168C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1271341B (en) * | 1963-07-22 | 1968-06-27 | Talfourd Serge Decuir | Mobile crane |
EP0164191A1 (en) * | 1984-04-12 | 1985-12-11 | Drg (Uk) Limited | Stacker-reclaimer |
US5348172A (en) * | 1993-03-02 | 1994-09-20 | Wilson Frederick F K | Industrial carrying machine |
-
0
- DE DENDAT105168D patent/DE105168C/de active Active
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1271341B (en) * | 1963-07-22 | 1968-06-27 | Talfourd Serge Decuir | Mobile crane |
EP0164191A1 (en) * | 1984-04-12 | 1985-12-11 | Drg (Uk) Limited | Stacker-reclaimer |
US5348172A (en) * | 1993-03-02 | 1994-09-20 | Wilson Frederick F K | Industrial carrying machine |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE105168C (en) | ||
US2398859A (en) | Material handling and loading apparatus | |
DE3030330C2 (en) | Lifting device in which the load path has a vertical and a horizontal component | |
US2933197A (en) | Cargo cranes | |
US1438292A (en) | Portable farm crane | |
DE362477C (en) | Device for lowering and lateral displacement of the conveyor vessel in conveyor systems | |
DE315214C (en) | ||
DE440845C (en) | Loading device for blast furnaces u. like | |
US2888150A (en) | Level luffing attachment for cranes | |
DE107978C (en) | ||
DE404558C (en) | Automatic crane scale | |
DE510402C (en) | Mechanically driven device for emptying trolleys | |
DE322399C (en) | Inclined elevator for filling blast furnaces | |
DE148385C (en) | ||
DE490037C (en) | Luffing crane | |
DE631906C (en) | Device for emptying railway wagons into ships | |
AT18510B (en) | Loading device for storage sheds and combined lanes. | |
DE841647C (en) | Device used for weighing and bagging bulk goods | |
DE1280154B (en) | Belt carriage with a pick-up boom and a discharge boom | |
DE234180C (en) | ||
DE476722C (en) | Luffing crane | |
DE909987C (en) | Loading device, in particular with a gripper | |
DE956477C (en) | Tilting device for container | |
DE215826C (en) | ||
DE585043C (en) | Haul truck high tipper, especially for mining operations |