BE500421A - ROTATING CRANE, IN PARTICULAR CRANE WITH VARIABLE REACH - Google Patents

ROTATING CRANE, IN PARTICULAR CRANE WITH VARIABLE REACH

Info

Publication number
BE500421A
BE500421A BE500421A BE500421A BE500421A BE 500421 A BE500421 A BE 500421A BE 500421 A BE500421 A BE 500421A BE 500421 A BE500421 A BE 500421A BE 500421 A BE500421 A BE 500421A
Authority
BE
Belgium
Prior art keywords
crane
gantry
rotating
variable reach
sheet metal
Prior art date
Application number
BE500421A
Other languages
French (fr)
Original Assignee
Demag 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
Priority claimed from DED6A external-priority patent/DE971385C/en
Priority claimed from DED386U external-priority patent/DE1689309U/en
Application filed by Demag Ag filed Critical Demag Ag
Publication of BE500421A publication Critical patent/BE500421A/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F71/00—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles
    • D06F71/18—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles specially adapted for pressing particular garments or parts thereof
    • D06F71/26—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles specially adapted for pressing particular garments or parts thereof for pressing shoulders or necks
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C11/00—Portable extinguishers with manually-operated pumps
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • 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
    • B66C23/06—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 with jibs mounted for jibbing or luffing movements
    • B66C23/08—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 with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths
    • B66C23/10—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 with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths the paths being substantially horizontal; Level-luffing jib-cranes
    • B66C23/12—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 with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths the paths being substantially horizontal; Level-luffing jib-cranes with means for automatically varying the effective length of the hoisting rope or cable
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F1/00—Fertilisers made from animal corpses, or parts thereof
    • C05F1/007—Fertilisers made from animal corpses, or parts thereof from derived products of animal origin or their wastes, e.g. leather, dairy products
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F67/00—Details of ironing machines provided for in groups D06F61/00, D06F63/00, or D06F65/00
    • D06F67/10—Driving arrangements
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F69/00—Ironing machines not otherwise provided for
    • D06F69/02—Ironing machines not otherwise provided for using endless or other ironing or pressing belts or aprons
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F69/00—Ironing machines not otherwise provided for
    • D06F69/04—Ironing machines not otherwise provided for with relatively-sliding flat surfaces
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F71/00—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles
    • D06F71/18—Apparatus for hot-pressing clothes, linen or other textile articles, i.e. wherein there is substantially no relative movement between pressing element and article while pressure is being applied to the article; Similar machines for cold-pressing clothes, linen or other textile articles specially adapted for pressing particular garments or parts thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock
    • Y02P20/145—Feedstock the feedstock being materials of biological origin

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Jib Cranes (AREA)

Description

       

  GRUE TOURNANTE, EN PARTICULIER GRUE A PORTEE VARIABLE 

  
La plate-forme roulante supérieure des grues tournantes ou à portée variable usuelles comprend, en général, une cabine pour le conducteur de grue, 1* espace réservé aux machines et le contrepoids, qui sont réunis sur un châssis. Les efforts du système de basculement ou d'inclinaison de la volée sont transmis au châssis par une charpente se trouvant dans l'espace réservé aux machines. 

  
Dans la nouvelle grue, il est prévu une enveloppe portante, de préférence cylindrique, en tôle, qui, à la face antérieure, contient la cabine du conducteur de grue et, à la face postérieure, une plate-forme à contrepoids ou analogue et qui transmet les efforts du système de basculement à la couronne de rotation. 

  
Le système de basculement et les autres parties de la construction peuvent être réunis en un appareil qui, du haut, est posé sur l'enveloppe de tôle.

  
L'enveloppe portante, en tôle, est avantageusement utilisée comme espace réservé aux machines; cependant, les treuils et autres mécanismes peuvent, par exemple, également être placés sur la plate-forme à contrepoids.  L'enveloppe en tôle peut également, au besoin, être de forme conique. 

  
Un anneau_de roulement pour un roulement à galets, entre la partie mobile de la grue et la charpente fixe (portique) est soudé directement,au bord inférieur de l'enveloppe de tôle. Si l'on prévoit le roulement

  
à billes de telle fagon qu'il puisse reprendre les efforts verticaux aussi

  
 <EMI ID=1.1> 

  
ou organe analogue; l'enveloppe de tôle transmet alors tous les efforts di- <EMI ID=2.1> 

  
convenablement du:bas et on dispose de l'ensemble de 1-'espace interne de l'enveloppe pour un agencement convenable des treuils et autres mécanismes.

  
Une autre caractéristique de l'invention réside dans le fait

  
de donner, à la partie du portique de grue à laquelle s'appuie le roulement à

  
galets, une forme cylindrique, par rapport à laquelle les pieds du portique,

  
en particulier trois seulement, sont disposés radialement. Les pieds rejoignent utilement directement la partie médiane en forme d'enceinte et sont avantageusement conformés en supports fléchis. Une telle conformation du portique

  
de grue présente l'avantage que les nombreuses entretoises obliques, et les

  
barres en diagonale jusqu'ici nécessaires, de même que les longerons, dispa-

  
 <EMI ID=3.1> 

  
par coulage de béton ou d'autres remplissages, un remplissage de ce genre dans

  
une partie des pieds du portique ou, éventuellement, dans le pied entier représentant, en fait, un accroissement important de la solidité.

  
La grue nouvelle se caractérise en particulier par la simplicité de son dispositif de suspension ou de la construction de la ]Plate-forme

  
supérieure et. du portique, par son poids minime et par des frais de fabrication réduits de fagon correspondante, et elle présente- ce qui ne vient pas en

  
dernier ordre- l'avantage d'un bel aspect.

  
Le champ de regard est aussi peu limité que possible; le conducteur de grue a, même si une série de grues se succèdent, une large vue sur

  
tout ce qui se passe autour de la grue. Les avantages cités en premier lieu

  
sont encore accrus si;-l'on combine la nouvelle construction de plate-forme roulante supérieure avec un système de. basculement simple. 

  
Le dessin représente un exemple d'exécution de l'objet de l'invention.

  
A la partie cylindrique 1 du portique sont fixés radialement

  
trois, appuis 2, conformés en supports fléchis, en caisson. La partie cylindrique qui présente, près de ses bords supérieur et inférieur, des anneaux de

  
renforcement 3 et, dans la direction de son axe, des, .tôles de renforcement 4,

  
porte, à son extrémité supérieure, l'anneau de roulement 5 d'un roulement à

  
billes 6, qui transmet tant les efforts horizontaux que les efforts verticaux. L'anneau de roulement supérieur 7 de ce roulement à billes est soudé

  
 <EMI ID=4.1> 

  
loppe en tôle est, monté un support 9, au milieu duquel est monté l'axe de rotation 10 de la flèche 11. Au-dessus de,'ce support est montée la charpente 12,

  
qui porte un levier à contrepoids 13, le mécanisme de variation de la volée

  
 <EMI ID=5.1> 

  
sé le treuil 16. Il repose sur un support 17, qui est traversé par l'enveloppe

  
8 et qui reçoit, à son extrémité antérieure, la plate-forme 18, réservée au

  
 <EMI ID=6.1> 

  
mécanisme de rotation 20 également se trouve sur ce. support L'accès à l'intérieur de l'enveloppe en tôle a;lieu du bas, par le portique 1 et le palier

  
6, par exemple par l'escalier 21.

REVENDICATIONS

  
1. Grue tournante, en particulier grue à portée variable, avec

  
cabine pour le conducteur de grue et contrepoids fixe sur le châssis de la

  
plate-forme supérieure, caractérisée par une enveloppe portante, en tôle, de

  
préférence cylindrique, qui contient la cabine du conducteur, le système de

  
basculement ou d'inclinaison de la volée et une plate-forme à contrepoids,

  
et qui transmet les efforts verticaux à une couronne de rotation.

  
2. Grue tournante, en particulier grue à portée variable, sui-

  
 <EMI ID=7.1> 



  ROTATING CRANE, IN PARTICULAR CRANE WITH VARIABLE REACH

  
The upper rolling platform of conventional rotating or variable-reach cranes generally comprises a cabin for the crane operator, the space reserved for the machines and the counterweight, which are united on a frame. The forces of the tilting or tilting system of the flight are transmitted to the frame by a frame located in the space reserved for the machines.

  
In the new crane, there is provided a supporting casing, preferably cylindrical, made of sheet metal, which, on the front side, contains the cabin of the crane operator and, on the rear side, a counterweight platform or the like and which transmits the forces of the tilting system to the rotation ring.

  
The tilting system and the other parts of the construction can be combined into a device which, from above, rests on the sheet metal casing.

  
The supporting envelope, made of sheet metal, is advantageously used as a space reserved for machines; however, winches and other mechanisms can, for example, also be placed on the counterbalance platform. The sheet metal casing can also, if necessary, be of conical shape.

  
A rolling ring for a roller bearing, between the moving part of the crane and the fixed frame (gantry) is welded directly, to the lower edge of the sheet metal casing. If the rotation is expected

  
ball in such a way that it can also take up the vertical forces

  
 <EMI ID = 1.1>

  
or the like; the sheet metal envelope then transmits all the forces di- <EMI ID = 2.1>

  
properly from the bottom and all of the internal space of the enclosure is available for proper arrangement of winches and other mechanisms.

  
Another characteristic of the invention lies in the fact

  
to give, to the part of the crane gantry on which the bearing rests to

  
rollers, a cylindrical shape, in relation to which the legs of the gantry,

  
in particular only three, are arranged radially. The feet usefully directly join the median part in the form of an enclosure and are advantageously shaped as bent supports. Such a conformation of the gantry

  
crane has the advantage that the many oblique struts, and the

  
diagonal bars hitherto required, as well as the side members,

  
 <EMI ID = 3.1>

  
by pouring concrete or other infills, such infill in

  
part of the gantry legs or, possibly, the entire leg representing, in fact, a significant increase in strength.

  
The new crane is characterized in particular by the simplicity of its suspension device or of the construction of the] Platform

  
superior and. of the gantry, by its minimal weight and by correspondingly reduced manufacturing costs, and it presents - what does not come into

  
last order- the advantage of a beautiful appearance.

  
The field of view is as little limited as possible; even if a series of cranes follow one another, the crane operator has a wide view of

  
everything that happens around the crane. The advantages mentioned first

  
are further increased if; - the new construction of the upper rolling platform is combined with a. simple tilting.

  
The drawing represents an example of execution of the object of the invention.

  
To the cylindrical part 1 of the gantry are fixed radially

  
three, supports 2, shaped as bent supports, box. The cylindrical part which has, near its upper and lower edges, rings of

  
reinforcement 3 and, in the direction of its axis, reinforcement sheets 4,

  
carries, at its upper end, the rolling ring 5 of a bearing with

  
balls 6, which transmits both horizontal and vertical forces. The top bearing ring 7 of this ball bearing is welded

  
 <EMI ID = 4.1>

  
A sheet metal lopper is mounted on a support 9, in the middle of which is mounted the axis of rotation 10 of the boom 11. Above, this support is mounted the frame 12,

  
which carries a counterweight lever 13, the flight variation mechanism

  
 <EMI ID = 5.1>

  
se the winch 16. It rests on a support 17, which is crossed by the casing

  
8 and which receives, at its front end, the platform 18, reserved for

  
 <EMI ID = 6.1>

  
Rotation mechanism 20 also is on this. support Access to the interior of the sheet metal enclosure is from the bottom, via gantry 1 and the landing

  
6, for example by staircase 21.

CLAIMS

  
1. Rotating crane, in particular variable reach crane, with

  
cab for the crane operator and fixed counterweight on the chassis of the

  
upper platform, characterized by a supporting casing, made of sheet metal, of

  
preferably cylindrical, which contains the driver's cabin, the

  
tilting or tilting of the flight and a counterweight platform,

  
and which transmits the vertical forces to a ring of rotation.

  
2. Rotating crane, in particular variable reach crane, followed

  
 <EMI ID = 7.1>

Claims (1)

<EMI ID=8.1> pe en tôle, qui portent, à l'une des extrémités en encorbellement, la cabine du conducteur et, à l'autre extrémité en encorbellement,le contrepoids et, éventuellement, le mécanisme de transmission. <EMI ID = 8.1> eg sheet metal, which carry, at one end cantilevered, the driver's cabin and, at the other end cantilever, the counterweight and, possibly, the transmission mechanism. 3. Grue tournante, en particulier grue à portée variable, suivant la revendication 1, caractérisée en ce que sur l'enveloppe en tôle est construite une charpente pour le mécanisme de variation de la flèche, les poulies à câble, les leviers à contrepoids ou autres parties du système de 3. Rotating crane, in particular a variable reach crane, according to claim 1, characterized in that on the sheet metal casing is constructed a frame for the jib variation mechanism, cable pulleys, counterweight levers or other parts of the la flèche. the arrow. 4. Grue tournante, en particulier grue à portée variable, suivant la revendication 3, caractérisée en ce que l'axe de rotation de la flèche est disposé dans un support posé au-dessus de la face supérieure de l'enveloppe en tôle, en particulier en son milieu approximativement. 4. Rotating crane, in particular a variable reach crane, according to claim 3, characterized in that the axis of rotation of the jib is arranged in a support placed above the upper face of the sheet metal casing, in particular in its middle approximately. 5. Grue tournante, en particulier grue à portée variable, suivant la revendication 1, caractérisée en ce que l'enveloppe en tôle est pourvue, à son extrémité inférieure, d'un anneau de roulement, avantageusement soudé, pour un roulement à galets, qui reprend les efforts-tant horizontaux que verticaux- de la; plate-forme supérieure sans pivot central, transmis par l'enveloppe en tôle.' 5. Rotating crane, in particular a variable reach crane, according to claim 1, characterized in that the sheet metal casing is provided, at its lower end, with a rolling ring, preferably welded, for a roller bearing, which takes up the efforts - both horizontal and vertical - of the; upper platform without central pivot, transmitted by the sheet metal casing. ' 6. Grue tournante, en particulier grue à portée variable, suivant la revendication 5, caractérisée en ce que le roulement à galets repose sur une partie cylindrique du portique de grue. 6. Rotating crane, in particular a variable reach crane, according to claim 5, characterized in that the roller bearing rests on a cylindrical part of the crane gantry. <EMI ID=9.1> <EMI ID = 9.1> vant la revendication 6, caractérisée en ce que les pieds du portique, en particulier trois pieds, sont montés à la partie cylindrique du portique de grue. According to claim 6, characterized in that the gantry legs, in particular three legs, are mounted on the cylindrical part of the crane gantry. 8. Grue tournante, en particulier grue à portée variable, suivant la revendication 7, caractérisée en ce que les pieds du portique, soudés radialement, sont conformés en supports fléchis, en caissons. 8. Rotating crane, in particular a variable reach crane, according to claim 7, characterized in that the legs of the gantry, welded radially, are shaped as bent supports, in boxes. <EMI ID=10.1> <EMI ID = 10.1> vant la:revendication 8, caractérisée en ce que les pieds du portique peuvent être complètement ou partiellement renforcés ou garantis contre les fléchissements, par des remplissages en béton ou autres. Before: claim 8, characterized in that the legs of the gantry can be completely or partially reinforced or secured against sagging, by concrete or other fillings. 10. Grue tournante, en particulier grue à portée variable, suivant la revendication 5, caractérisée en ce que la partie cylindrique du portique de grue .est pourvue, près de son bord supérieur et près de son bord inférieur, d'un anneau de.renforcement. 10. Rotating crane, in particular a variable reach crane, according to claim 5, characterized in that the cylindrical part of the crane gantry is provided, near its upper edge and near its lower edge, with a ring. enhancement. <EMI ID=11.1> <EMI ID = 11.1> ment'de la partie cylindrique du portique sont prévus des renforcements Verticaux. The cylindrical part of the gantry is provided with vertical reinforcements. 12. Grue tournante, en particulier grue à portée variable, suivant &#65533;a revendication 5, caractérisée en ce que l'accès à la grue a lieu par l'intérieur de la partie cylindrique du portique. 12. Rotating crane, in particular a variable reach crane, according to claim 5, characterized in that access to the crane takes place from the inside of the cylindrical part of the gantry.
BE500421A 1949-10-02 1951-01-03 ROTATING CRANE, IN PARTICULAR CRANE WITH VARIABLE REACH BE500421A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DED6A DE971385C (en) 1949-10-02 1949-10-02 Jib crane, especially luffing crane
DED386U DE1689309U (en) 1950-01-09 1950-01-09 PORT PORTAL CRANE

Publications (1)

Publication Number Publication Date
BE500421A true BE500421A (en) 1951-01-31

Family

ID=63556068

Family Applications (1)

Application Number Title Priority Date Filing Date
BE500421A BE500421A (en) 1949-10-02 1951-01-03 ROTATING CRANE, IN PARTICULAR CRANE WITH VARIABLE REACH

Country Status (1)

Country Link
BE (1) BE500421A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964723C (en) * 1952-12-23 1957-05-29 Demag Ag Heavy duty crane, especially floating crane
DE1015201B (en) * 1953-06-02 1957-09-05 Kampnagel Ag Vormals Nagel & K Crane portal with single feet

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE964723C (en) * 1952-12-23 1957-05-29 Demag Ag Heavy duty crane, especially floating crane
DE1015201B (en) * 1953-06-02 1957-09-05 Kampnagel Ag Vormals Nagel & K Crane portal with single feet

Similar Documents

Publication Publication Date Title
FR2912450A1 (en) WIND TURBINE WITH FOLDING MAT AND METHOD OF USING SUCH A WINDMILL.
US2130487A (en) Crane construction
US2213870A (en) Tower
US2790622A (en) Portable logging tower
US2440199A (en) Gantry structure
US2557484A (en) Truck crane
US3976210A (en) Anti-tipping log skidder
KR102759766B1 (en) Detachable crane for vehicles
US1344659A (en) Counterbalanced crane
US2594720A (en) Pier hole excavator
US3330420A (en) Boom support on soil excavating apparatus
US2549996A (en) Wagon box elevating and tilting device
CN220316249U (en) Pineapple harvesting and conveying device
FR2574834A1 (en) FLOATING DRAGON
US3028697A (en) Loading boom
FR2536735A1 (en) WORKING TROLLEY, PARTICULARLY FOR FITTING GLASS ROOFS OF AGRICULTURAL GREENHOUSES
US860102A (en) Excavating apparatus.
US1280951A (en) Stump puller and stacker.
US2189426A (en) Tractor mounted crane
US2787385A (en) Mast erection
US1418387A (en) Truck hoist
CN204659765U (en) Granule crops carrying equipment
US1606628A (en) Loader
CN106351273A (en) Earth boring machine and earth boring method
FR2525999A1 (en) Hoist frame for material handling - has dismountable trolley with jib, pulley and winch operated lifting gear