baber/WOPTO huggingface dataset:
Patent FR-2680947-B1 (FR)
IPC: A01D78/10
Filed: 1991-09-10
Granted: 1993-11-19
Abstract: The present invention relates to a haymaking machine comprising a frame carrying a plurality of rotors rotationally driven about support axles. Under each rotor there is arranged at least one wheel fixed to a post connected to a support which is mounted on the corresponding support axle, which wheel is adjustable about this axle. According to the invention, there is arranged under each rotor an actuation means (32) for adjusting the corresponding wheel (27), which actuation means is controlled from the driving tractor.
Patent FR-2733756-B1 (FR)
Inventor: CHARRIN JEAN JACQUES
IPC: C08F6/00
Filed: 1995-05-05
Granted: 1997-08-01
Abstract: PCT No. PCT/FR96/00686 Sec. 371 Date Nov. 4, 1997 Sec. 102(e) Date Nov. 4, 1997 PCT Filed May 6, 1996 PCT Pub. No. WO94/34897 PCT Pub. Date Nov. 7, 1996A poly(vinyl alcohol) purification process is described, which includes heat treating a poly(vinyl alcohol) under agitation in an atmosphere unsaturated by water and with a water vapor mass content of 20 to 100%. The process of the invention may also include an additional drying step. A poly(vinyl alcohol) with an alcohol content, more particularly a methanol content, of lower than 1% and an ester content, more particularly a methyl acetate content, of lower than 1% is also described, which is provided in the form of flakes a few millimeters in size or of a powder with an average particle size advantageously higher than 600  mu m.
Patent FR-2738433-B1 (FR)
Inventor: VERGNES ALAIN
IPC: H04L69/40
Filed: 1995-08-30
Granted: 1997-11-14
Abstract: A multichannel transmission system has at least one transmitter portion (1), one receiver portion (2) and one test circuit comprising a single test sequence generator (23), a switching circuit (25) for simultaneously connecting the output of said sequence generator to one or more of said channels on the basis of the tests to be conducted, a sequence generator control circuit for changing the sequence word, and an output circuit connected to said sequence generator to sample and hold, for all the channels, the code provided during the above progression. The device is useful for testing SDH systems.
Patent FR-2752870-B1 (FR)
Inventor: VERNEREY JEAN CLAUDE
IPC: E05F15/12
Filed: 1996-09-03
Granted: 1999-11-26
Abstract: The door or gate actuator consists of an assembly between the door or gate (1) and a fixed structure (3,6). A drive motor (4) is mounted on the door/gate or fixed structure. A slideway lever (8) is pivoted to a fixed point on the motor. It also comprises a motor lever (10) and a manoeuvring bar (7). The motor lever has one end fixed to the motor output shaft and the other pivoting and sliding in the slideway lever slot by means of a roller (11) on its end. The manoeuvring bar is pivoted by one end to the door/gate or the fixed structure, and at its other end to the slideway lever.
Patent FR-2761913-B1 (FR)
Inventor: COQUELIN JEAN PHILIPPE
IPC: B21D53/10
Filed: 1997-04-10
Granted: 1999-05-28
Abstract: The method for forming a race with two radial faces (13,15) which are axially offset from a circular blank with a cylindrical section (28), a radial base (29) and a part to for the second radial face involves supporting the radial base and supporting the open section using a radial expansion mandrill. The external surface of the section which will form the second radial face is formed and sized by a radial deformation towards the interior. The deformation can form a cross section which is part of he arc of a circle.
Patent FR-2777888-B1 (FR)
Inventor: BRION FRANCIS
IPC: C07K5/06
Filed: 1998-04-27
Granted: 2004-07-16
Abstract: (9S)-9-Amino-3,4,7,8,9,10-hexahydro-6,10-dioxo-6H-pyridazino(1,2-a)(1, 2)diazepine-1-carboxylic acid compounds (I) are new. (9S)-9-Amino-3,4,7,8,9,10-hexahydro-6,10-dioxo-6H-pyridazino(1,2-a)(1, 2)diazepine-1-carboxylic acid compounds of formula (I), in which the amino group is optionally protected, are new: R = H, 1-18C alkyl or 7-18C aralkyl. Independent claims are also included for: (1) (1RS,9S)-9-amino-1,2,3,4,7,8,9,10-octahydro-6,10-dioxo-6H-pyridazino(1 ,2-a)(1,2)diazepine-1-carboxylic acid compounds of formula (II), in which the amino group is optionally protected; (2) (1S,9S)-9-amino-1,2,3,4,7,8,9,10-octahydro-6,10-dioxo-6H-pyridazino(1, 2-a)(1,2)diazepine-1-carboxylic acid compounds of formula (III), in which the amino group is optionally protected: N.B. where R is t-butyl and the amino group is protected in the form of a phthalimido group is disclosed as being described in EP94095.
Patent FR-2801191-B1 (FR)
Inventor: DUCHE RENAUD
IPC: A61F2/08
Filed: 1999-11-19
Granted: 2002-02-15
Abstract: The technical field of the invention is the manufacture of surgical equipment implantable in the human body. The invention concerns a device for protecting nerves (2) and/or tendons (3) located in a canal zone (13) of the human body, normally closed by a ligament (1) and which is opened during a surgical procedure. The invention is characterized in that the device includes at least a plate (10) whereof the dimensions enable its insertion between the edges of the ligament, and in particular whereof the length is compatible with the distance separating the edges (11) of the ligament (1) after the cut performed during the surgical procedure, and whereof one face (102) includes a sliding surface and the other face (101) a adhering surface, the plate (10) is preferably convex with two curvilinear sides parallel in the direction transverse to the sides corresponding to the cut edges (11) of the ligament (1).
Patent HU-222517-B1 (HU)
Inventor: BOULANT ALAIN
IPC: C09K23/22
Filed: 1997-12-30
Abstract: Berendezés egy tartályban (1) levő folyadék keverésére,levegőztetésére és a hab kiküszöbölésére, amely tartályban (1) egyfüggőleges henger (11) van, amely a tartály (1) magasságának egyrészét foglalja el, és amely felső részén legalább egy elsőbeömlőnyílássort (17, 18) tartalmaz a folyadék (3) bevezetésére, és atartály (1) alja közelében legalább egy második nyílást, amelykifolyási teret (13) nyújt a folyadék (3) számára, a henger (11) felsőrésze körül egy tölcsér (14) van elhelyezve, amely csatlakozik ahengerhez (11), a tölcsér (14) felső éle a tartály (1) falával szabadteret (15) képez a folyadék (3) áthaladásához, egy főkeverőtárcsája(20) van, amely a hengerben (11) a tölcsér (14) alja alatt vanelhelyezve, egy meghajtott függőleges forgótengelye (19) van, amely ahenger (11) belsejében van elhelyezve és a keverőtárcsa (20) fölöttnyúlik ki és azt forgásban tartja, egy örvénylésgátló eszköze (24)van, amely a henger (11) belsejében, a keverőtárcsa (20) alatt vanelhelyezve, továbbá az örvénylésgátló eszköz (24) alatt a hengerbe(11) nyomás alatt levő gáz befúvására szolgáló eszközei (33) vannak,továbbá külön álló statikus keverőeszközei vannak a folyadéknak (3) ahengeren (11) belüli örvényléssel történő keveréséhez, amely eszközökaz örvénylésgátló eszközök (24) alatt vannak elhelyezve. ŕ
Patent HU-224164-B1 (HU)
Inventor: KISS TAMAS
IPC: A61G7/057
Filed: 2002-03-07
Abstract: Masszírozó gyógyágy felfekvés, illetve decubitus kialakulásánakmegelőzésére, amelynek két, egymásba fésűsen illeszkedő, az ágyhossztengelyével párhuzamosan elrendezett vízszintes mozgórácsa van. Amozgórácsok külső mozgórácsként (2), illetve belső mozgórácsként (3)kiképezve egymással szemben elmozduló elemekként vannak kialakítva. Emozgórácsokban hornyolt görgők (13) vannak csapágyazva az ágykeresztirányába rendezett vízszintes tengellyel. A mozgórácsokat (2,3) tartó futógörgők (4) az ágy két oldalán kiképzett futógörgőtartónvannak megvezetve. Az ágy fekvőfelülete egy állítható lábrácsból (12),egy állítható ferdeségű fejtámlából (8) és a fekvőfelület középsőrészét kitöltő mozgórácsokból (2, 3) van kialakítva. A mozgórácsokat(2, 3) mozgató berendezés transzformátorból, vezérlőegységből ésfokozatkapcsolóból (7), motorból (6), hajtóműből (5) ésmozgatómechanizmusból van kialakítva. Az ágy mindkét oldala azösszefogó kerethez elfordíthatóan csatlakozó oldalelemmel,rögzítőelemmel, valamint rögzítőanyával összefogott, fokozatmentesenállítható védőráccsal (9) van ellátva.
Patent HU-229181-B1 (HU)
Title: Packaging and storage for long-stemmed flowers
Inventor: HELSLOOT JOANNES CAROLUS ANTONIUS
IPC: A01G5/04
Filed: 2000-05-26
Abstract: A packaging for long-stemmed flowers having little or no leaf, in particular gerberas, anthuriums and arum lilies, comprises: at least one or more vases (2) made of flexible or rigid material, means for positioning said vase or vases (2), one or more display tubes (3) with rows of openings (17) which allow the stems of the packed flowers to pass through, but not the flowers themselves, means for positioning the display tubes (3) above the vases (2) in such a way that the flower stems inserted through the openings in the display tubes (3) extend into the vases, a tubular protective collar (4) and means for positioning the protective collar (4) around the display tubes. Preferably the packaging also has a lid (5) that fits on the protective collar and contains ventilation openings.
Patent HU-229190-B1 (HU)
Title: Carton for packaging flanged articles
Inventor: BAKX MARTINUS C M
IPC: B65D5/4805
Filed: 2002-01-26
Abstract: A carton for packaging one or more articles (A) having a laterally extending flange (F) comprises a top wall panel (12), a side wall panel (14) connected to the top wall panel (12) and an article retention structure comprising a tab (22a) formed at least in part from the side wall panel (14). The tab (22a) includes an upper edge (24) for engaging the underside of the flange (F) and an opposing lower edge defined at least in part by first and second fold lines (32a, 32b). The minimum distance (S) between the top wall panel and the upper edge of the tab (22a) is less than the thickness (T) of the flange (F) to cause the tab to be pivoted with respect to the adjacent side wall panel (14).
Patent HU-230630-B1 (HU)
Title: Natural feeding-stuffs mixture for domesticated water fowl
Inventor: DR SZILVASSY ZOLTAN
Filed: 2012-12-18
Abstract: The invention relates to a natural feed mixture for breeding domesticated water birds, comprising a high carbohydrate containing basic component poor in methyl-donors, a component rich in carbohydrates, having hepatic insulin-sensitizing properties, hypothalamic appetite-stimulating plant parts, natural substances blocking cholesterol synthesis in the liver, and an additive for protecting the formation of non-cholesterol- mevalonate products.
Patent HU-222131-B1 (HU)
Title: Device for grinding rails
Inventor: HERTELENDI JOSEF
IPC: E01B31/17
Filed: 1996-05-16
Abstract: The profiling machine (1) is rolled along the rail (47) supported on flanged wheels (22) at each end. Swivel mountings (8) support a grinding frame (3) to position a grinding head onto the rail profile. Guide rollers (4) on the grinding head limit the amount of rail material taken off by the grinding head. The rollers tilt with the frame alignment about an axis parallel to the rail. The two flanges on each support wheel provide a vertical reference for grinding the two flanges of the rail with the appropriate flange brought into contact with the side of the rail by lateral movement of the wheel. The swivel action is controlled by a geared drive (33,34) on the swivel mounting. The differences in height setting, w.r.t. the rail, of the rollers and the flanged wheels control the amount of material removed by the grinding head.
Patent JP-2873576-B1 (JP)
Title: 外気と室内間に設置する空気清浄装置
IPC: F24F7/00
Filed: 1998-01-05
Granted: 1999-03-24
Abstract: 【要約】
【課題】  室内空気の浄化循環以外に外気の浄化導入及 び室内空気の直接排気等の換気機能を具備し、それらを 切換または併用することにより、室内空気の鮮度維持を 可能にする空気清浄装置を提供する。
【解決手段】  外気２と室内３とを隔絶する壁４を貫通 して設置されたケーシング５の内部に陽圧部７と陰圧部 ８とを形成すると共に送風ファン９を設け、陽圧部７に は室内に開口した清浄空気吹出口１０，メインフィルタ ー１１，外気に開口した排気口１２を設け、陰圧部８に は室内空気吸入口１６，外気吸入口１７及びプレフィル ター１８，１９を設けた。そして、送風ファン９の吐出 側空気流路をダンパー１５で室内側と外気側とに切換 え、吸込側空気流路をスライドダンパー２３で室内側と 外気側とに切換えるようにした。
Patent JP-2895826-B1 (JP)
Title: ベーン型圧縮機の組付け方法及び芯出し用ダミーロータ
IPC: F04C29/00
Filed: 1998-01-28
Granted: 1999-05-24
Abstract: 【要約】
【課題】  シリンダブロックの貫通孔の中心とロータの 軸芯との芯出しを容易に精度良く行う。
【解決手段】  芯出し用ダミーロータ３０のロータ部２ ２に互いに平行な一対の平面部２２ｂが形成されている ので、芯出し用ダミーロータ３０をシリンダブロック１ の貫通孔１ａの内周面に接触させずに挿入したり、取り 出したりすることができる。また、ロータ部２２の円弧 部２２ａによって描かれる仮想円の直径はシリンダブロ ック１の貫通孔の短径よりもわずかに大きいので、シリ ンダブロック１の貫通孔内の芯出し用ダミーロータ３０ を回転させて、シリンダブロック１の短径部分に張りを 与えることができ、フロントサイドブロック３をシリン ダブロック１の一端面に通しボルトで締め付けたとき、 シリンダブロック１が変形しないし、芯出し用ダミーロ ータ３０を抜いた後も芯がずれない。
Patent JP-S504888-B1 (JP)
IPC: F16L37/10
Filed: 1965-06-22
Abstract: 1,041,499. Pipe couplings. PACIFIC COAST ENGINEERING CO. June 8, 1965 [June 22, 1964], No. 24241/65. Heading F2G. In a ball-joint pipe coupling a ring 9 includes a number of wedges 45 and toothed racks 53, the latter being engaged by a pinion 59 which is rotated by a handle 61 to bring the wedges into engagement with wedge hooks 43 forming part of the bell pipe section 1. The ring has an auxiliary retainer ring 31 bearing on the ball section 5, and the coupling is locked by pins 71 which are locked in position by set-screws 79.
Patent JP-3007087-B1 (JP)
Title: 冷蔵庫の圧縮機制御装置及び方法
IPC: F25B49/02
Filed: 1999-02-19
Granted: 2000-02-07
Abstract: 【要約】
【課題】  圧縮機の設定回転数と運転回転数とを比較し て瞬間停電を感知し、瞬間停電発生時は停電持続時間及 び電源復帰後圧縮機の駆動状態により圧縮機のオンオフ を制御することによって圧縮機を保護する冷蔵庫の圧縮 機制御装置及び方法に関する。
【解決手段】  ＡＣ電源をＤＣ電源に変換するコンバー タ、前記コンバータから出力されるＤＣ電源を３相−Ａ Ｃ電源に変換させるインバータ、及び前記インバータか ら出力された３相−ＡＣ電源により駆動される圧縮機を 具備する冷蔵庫において、前記圧縮機の運転回転数を感 知する回転数感知手段及び前記回転数感知手段により感 知された運転回転数と予め決められた設定回転数とを比 較して瞬間停電を判断し、瞬間停電発生時は停電持続時 間及び電源復帰後前記圧縮機の駆動状態により前記圧縮 機をオンオフ制御する制御手段とを具備する。
Patent NL-1043018-B1 (NL)
Title: Aanpassing aan een plat product
Inventor: HUBERTUS GERARDUS JACOBUS VERHEIJEN
IPC: B65D85/62
Filed: 2018-10-02
Granted: 2020-07-14
Abstract: De uitvinding betreft een plat product, zoals een beschuitje, koekje, rijstwafel, chocolaatje of dergelijks met aan de gehele randomtrekzone een bolvormig profiel dat vanaf het grootste omtrekpunt, zo dicht mogelijk bij het bovenvlak benedenwaarts een curve heeft met een radius van minimaal de halve dikte waarna de kromming bij toenemende booglengte afneemt en overgaat in het grondvlak bij het kantelpunt. Hierdoor kan men het bovenste product uit een bijvoorbeeld strakke folieverpakking nemen door, zonder te kijken, met één of meer vingers op een willekeurig deel van de randomtrekzone te duwen waardoor het product, en enkelen daaronder, kantelt en aan de overzijde ruimte ontstaat tussen product en folie zodat het product eenvoudig kan worden aangegrepen en zonder kruimelen of beschadiging worden uitgenomen. Ook via de buitenkant kan men een vinger onder het eerste product plaatsen en buitenlangs omhoog duwen zodat het kantelt en eenvoudig worden uitgenomen.
Patent NL-1043449-B1 (NL)
Title: Een methode om middels het aanbrengen van enkele verhogers aan o.a. strand ligbedden en andere zit-en ligmeubelen, het opstaan en gaan zitten, c.q. gaan liggen, voor ouderen en mogelijk ook gehandicapte personen te vergemakkelijken.
Inventor: EDUARD DE HAAS
IPC: A61G5/14
Filed: 2019-11-06
Granted: 2021-07-20
Abstract: In de bestaande situatie is het voor veel mensen en zeker voor ouderen en/of gehandicapte personen, vaak heel moeilijk om op te staan of te gaan zitten/liggen op een ligbed op stranden en zonneweiden en aan zwembaden Door het toepassen van deze verhoger(s) kan dit direct sterk verbeterd worden en in veel gevallen een oplossing bieden voor dit probleem
Patent NL-2014724-B1 (NL)
Title: Liquid gas container frame assembly and method for manoeuvring said assembly.
Inventor: JOHAN NICOLAAS GUSTAAF STEPHAN
IPC: F17C1/04
Filed: 2015-04-28
Granted: 2017-01-26
Abstract: The invention relates to a liquid gas container frame assembly, which comprises a container with an internal volume of said container of at least 150 liter. A frame is provided for securably transporting said container, which frame comprises a plurality of longitudinal beam elements which during use extend substantially parallel to a central axis of said container and are positioned spaced apart from one another circumferentially around said container. Reinforcing beam elements are connected to said longitudinal beam elements, such that during use said longitudinal beam elements and said reinforcing beam elements form a frame enclosing said container. Securing elements are provided for securing said container to said frame. Finally said assembly comprises manoeuvring means for manoeuvring said assembly with said container filled with liquid gas from an offloading location to an installation location during use.
Patent NL-2014884-B1 (NL)
Title: An apparatus and a method for dispensing bead insulation into cavity walls for providing insulation between two skins of the walls.
Inventor: STEFAN JOZEF MARIA NOOIJENS
IPC: E04F21/08
Filed: 2015-05-29
Granted: 2017-01-31
Abstract: An apparatus for dispensing bead insulation into cavity walls, the apparatus comprising: a dispensing head, a bead container connected to said dispensing head, bead transportation means arranged for transporting said dry bead insulation from said bead container to said dispensing head, an adhesive container connected to said dispensing head, adhesive fluid transportation means arranged for transporting said adhesive fluid to said dispensing head, wherein said apparatus further comprises a dry bead flow meter arranged for determining a measure for a flow rate of said transported dry bead insulation, an adhesive fluid flow meter arranged for determining a measure for a flow rate of said transported adhesive fluid, and a control unit in electronic communication with said dry bead flow meter and said adhesive fluid flow meter, and arranged for determining and providing a ratio of transported dry bead insulation to transported adhesive fluid based on said determined measures.
Patent NL-2016216-B1 (NL)
Title: Analog to digital data converter.
Inventor: CEES JEROEN BES
IPC: H03M1/48
Filed: 2016-02-03
Granted: 2017-08-11
Abstract: Analog to digital data converter (ADC) (1) comprising an analog signal input (2) and a digital signal output (3), wherein an analog amplifier a signal modifier (4) is provided in a signal path (6) from the analog signal input (2) to the digital signal output (3), and wherein the converter (1) comprises a processor (5) for providing an analog offset signal that modifies an analog signal in the signal path (6) from the analog signal input to the amplifier (4)digital signal output (3), wherein the signal modifier is an analog amplifier (4) that receives an input signal composed of a signal from the analog signal input (2) and the analog offset signal from the processor (5), wherein both the input signal and the analog offset signal are provided to the analog amplifier (4) through separate capacitors circuit elements (C1; C3).
Patent NL-2021727-B1 (NL)
Title: Automatic feeding system, barn for housing animals using such a system, autonomously moveable feeding device for use in such a system, and impact element for use in such a system
Inventor: LEON 'T MANNETJE
IPC: B60T7/22
Filed: 2018-09-28
Granted: 2020-05-07
Abstract: An automatic feeding system comprises an autonomously moveable feeding device for feeding animals. The feeding device comprises a feed container for accommodating feed, a feed dispensing device for dispensing feed from the feed container, and a safety device suitable for halting the autonomously moveable feeding device in case of collision with an obstacle. The safety device comprises a bumper for establishing a first contact with such an obstacle. The bumper defines an outer safety contour of the autonomously moveable feeding device. The safety device further comprises a partitioning means opening device configured to open partitioning means provided in a door opening for enabling the autonomously moveable feeding device to pass through the door opening. The door opening provided with partitioning means may be provided in a barn for housing animals. The opening device is provided separately and independently from and is not directly connected to the safety device. In this way, the partitioning means opening device acts independently from and does not affect the safety device.
Patent NL-2025863-B1 (NL)
Title: Fecal matter for treatment of cachexia
Inventor: MAX NIEUWDORP
IPC: A61P43/00
Filed: 2020-06-19
Granted: 2022-02-17
Abstract: The present invention relates to the use of allogenic fecal matter for the treatment of cachexia and/or cancer, wherein the allogenic fecal matter is obtained from at least one donor subject, wherein the at least one donor subject has a Body Mass Index (BMI) of at least 30 kg/mz, a 5 HOMA-IR value below 2.5 mg/dL and/or an age below 60 years. Fecal matter from said at least one donor subject may be used to treat cancer and/or related conditions.
Patent NL-2025889-B1 (NL)
Title: Systems, methods, computer program product and interfaces for controlling authorizations to access and/or use a physical space by a person, and spaces controlled thereby
Inventor: BOB VAN DER MOEZEL
IPC: G07G1/14
Filed: 2020-06-23
Granted: 2022-02-21
Abstract: A system for controlling authorizations to access and/or use a physical space has an object reader for detecting a presence of a, tangible, identification object assigned to an individual. The identification object has data unique for the identification object which is coupled to authentication data of the individual. A human-machine selection interface allows inputting by the person selection(s) of acts subject to authorization from the system, of access or use of the physical space. The human-machine selection interface is arranged to generate in response to the input selection data representing the selected act and send the selection data. A data processing system is connected to the object reader and the selection interface. The data processing system is arranged to verify a validity of the identification object and assign an identifier to the identification object if the identification object is determined to be valid. The data processing system can further couple the selection data to the identifier and maintains a selection record coupled to the identifier containing information about the selected acts derived from the selection data. The data processing system is arranged to assemble, after a final selection by the person, request data from the selection record, and to submit the request data to an authorization process in which the data processing system determines based on a set of predetermined criteria whether an authorization to perform the selected acts is granted or refused based on at least the unique data and the request data.
Patent NL-2029296-B1 (NL)
Title: Graphics security with synergistic encryption, content-based and resource management technology
Inventor: ALEX NAYSHTUT
IPC: H04L9/32
Filed: 2021-09-30
Granted: 2022-09-16
Abstract: Methods, apparatuses and system provide for technology that interleaves a plurality of verification commands with a plurality of copy commands in a command buffer, wherein each copy command includes a message authentication code (MAC) derived from a master 5 session key, wherein one or more of the plurality of verification commands corresponds to a copy command in the plurality of copy commands, and wherein a verification command at an end of the command buffer corresponds to contents of the command buffer. The technology may also add a MAC generation command to the command buffer, wherein the MAC generation command references an address of a compute result. 10
Patent RO-114994-B1 (RO)
Title: Device for timing and monitoring hydraulic cylinder movement
Inventor: PANAITESCU VICTOR CLAUDIU
IPC: F15B15/00
Filed: 1993-02-05
Abstract: The invention refers to a device designed to ensure the synchronous displacement of the step rods of some hydraulic cylinders (A1...Aj...An), which execute the relative displacement of two assemblies (1 and 2) when there are some positioning errors, different geometrical volumes and differences in the hydraulic efficiency, as well as to enable the individual displacement of any of the hydraulic cylinders (A1...Aj...An) in order to position or modify their loading.  The invention is applicable for opening the derricks of drilling rigs and other metallic constructions, for lifting big assemblies, such as blocks of drilling rigs, ship hulls, etc.