A supporting unit and system suitable for fabricated concrete frame structure construction. The supporting unit comprises a plurality of sets of under-beam supporting units (1) which are sequentially connected and define a cavity, and an under-laminated-slab supporting unit (2) which is located in the cavity and connected to the plurality of sets of under-beam supporting units (1) respectively; the under-laminated-slab supporting unit (2) comprises an under-slab supporting assembly (21), two sets of laminated slab back-rib systems (23) installed on the under-slab supporting assembly (21), and a slab strip back-rib system (22) connected to the two sets of laminated slab back-rib systems (23) respectively and located between the two sets of laminated slab back-rib systems (23).
E04G 17/00 - Pièces d'assemblage ou autres pièces auxiliaires pour coffre, faux œuvre ou coffrage
E04B 5/18 - Structures de planchers partiellement formées sur place comportant des nervures de renforcement ou autres conformations semblables à des poutres entièrement coulées entre des éléments de remplissage
E04G 11/50 - Solives, poutres ou pièces du même genre agissant comme support de coffrage
E04G 11/52 - Solives, poutres ou pièces du même genre agissant comme support de coffrage de plusieurs éléments mis en place l'un après l'autre
E04G 9/04 - Panneaux de coffrage ou éléments analogues la surface façonnante étant en bois
2.
Dynamic Control System and Control Method Suitable for Ventilation of Fully Buried Sewage Treatment Plant
A dynamic control system for ventilation of a fully buried sewage treatment plant has a real-time dynamic monitoring module. The real-time dynamic monitoring module is used for monitoring a pressure difference value between a driving ramp and an outdoor environment, a harmful gas concentration value in each area or room and a pressure difference value of each area or room in real time; the dynamic control platform is in signal connection with the real-time dynamic monitoring module; the dynamic control platform calculates and adjusts the pressure difference set value of each area or room according to the control requirement of the real-time flow direction of the harmful gas, determines the air supplement amount of the current environment according to the real-time exhaust air amount and the real-time pressure difference air amount, and regulates and controls the rotating speed of an air supplement machine of the air supplement system.
An ultra-large-span flexible photovoltaic support system and an installation method therefor, the ultra-large-span flexible photovoltaic support system comprising support columns (1) and connecting suspension cables (2) fitted across the support columns (1), wherein the support columns (1) are symmetrically arranged along the center of a crossing area, at least two support columns (1) being provided at a single side of the crossing area, the support columns (1) are provided with winches (4) for tensioning the connecting suspension cables (2), and photovoltaic modules (5) are provided between adjacent connecting suspension cables (2); support stay cables (6) are provided between the support columns (1) and the ground, and auxiliary stay cables (7) are provided between the support columns (1) and the connecting suspension cables (2); and the support columns (1) are each obliquely inserted into the ground at a predetermined angle and to a predetermined depth. By means of the present method, flexible support for modules in a photovoltaic power generation system with an ultra-large span greater than 100 meters can be realized, filling the gap in the application of photovoltaic power generation in landfill sites, valleys, etc., within the settlement period.
A fish scale-shaped overlapping roof installation structure, comprising: structural purlins (1) installed on structural trusses (10), purlin supports (3) installed on the structural purlins (1) and telescopically adjustable, multiple groups of primary purlin assemblies installed in parallel on the purlin supports (3), multiple groups of secondary purlins (6) arranged in parallel and used for connecting two adjacent groups of primary purlin assemblies, multiple groups of brackets (8) installed on the secondary purlins (6), a waterproof insulation layer (4) arranged between the structural purlins (1) and the primary purlin assemblies, adjustable supporting members (2) arranged on the structural purlins (1) and used for supporting the waterproof insulation layer (4), and multiple groups of roof decorative panels (20) installed on the brackets (8), wherein one end of each purlin support (3) passes through the waterproof insulation layer (4) and is connected to the corresponding primary purlin (5), and a gap is formed between adjacent roof decorative panels (20). Also provided is an installation method for the fish scale-shaped overlapping roof installation structure.
E04B 7/00 - ToitsStructure des toits en ce qui concerne l'isolation
E04D 11/02 - Toits composites, c.-à-d. consistant en plusieurs couches liaisonnées sur place, l’une des couches au moins étant par sa composition imperméable à l’eau
E04D 13/16 - Aménagements ou dispositifs pour l'isolation dans la mesure où la couverture du toit est en cause
5.
Fixture and Construction Method Suitable for Installation and Uninstallation of Large Steel Structures
A fixture and a construction method suitable for installation and uninstallation of large steel structures are provided. The fixture has a limit adapter component used to support and fix steel structures, a spherical sliding device connected with the limit adapter component, a locking device provided with an arc-shaped groove, an inclined strut whose two ends are hinged with the locking device and the spherical sliding device respectively, a jacking mechanism installed at the bottom of the locking device, and a gasket adjustment unit located outside the jacking mechanism and abutted with the bottom of the locking device.
A method for building a coke own includes steps of building an oven body building three-dimensional control network, and building a coke side or machine side refractory brick receiving platform; based on the three-dimensional control network and the refractory brick receiving platform, marking out a laying position of each layer of refractory bricks layer by layer, arranging the refractory bricks required by laying of each layer by layer, laying the refractory bricks layer by layer according to the marking and the arrangement, jointing the laid refractory bricks layer by layer, cleaning the jointed refractory bricks layer by layer, and checking and accepting the cleaned refractory bricks layer by layer. In this method, quality control is carried out on coke oven body masonry on the whole through six dimensions.
The present invention relates to the technical field of suspended ceilings. Specifically disclosed are an arc-shaped curved surface suspended ceiling structure based on BIM and a construction method. The arc-shaped curved surface suspended ceiling structure comprises conversion layer furring connected to the bottom of a roof, a plurality of groups of mounting units that are connected to the bottom of the conversion layer furring and have arc-shaped curved bottom surfaces, a plurality of groups of mounting plates mounted at the bottom of the mounting units, and a finishing layer. The sides of the mounting units close to the conversion layer furring are flat. Each group of mounting units comprises main furring, a plurality of groups of blade furring, and nailing furring that are mounted at the bottom of the blade furring and that are fitted with the bottom of the blade furring to form an arc-shaped mounting framework. The bottom of the arc-shaped mounting framework is an arc-shaped curved surface, and the main furring in each group of mounting units are located on the same horizontal plane. The whole suspended ceiling is divided into a plurality of mounting units with arc-shaped curved bottom surfaces. The bottom surfaces of the plurality of mounting units form an arc-shaped mounting surface for the mounting of the mounting plates, and there is no need to customize mounting plates with arc-shaped curved surfaces, thereby reducing the machining difficulty.
E04B 9/06 - PlafondsStructure des plafonds, p. ex. faux plafondsStructure des plafonds en ce qui concerne l'isolation caractérisés par les particularités de construction de la structure de support
E04B 9/04 - PlafondsStructure des plafonds, p. ex. faux plafondsStructure des plafonds en ce qui concerne l'isolation comprenant des dalles, des feuilles ou similaires
E04B 9/12 - Fixation les uns aux autres d'éléments non parallèles de la structure de support
E04G 21/14 - Transport ou assemblage des éléments de construction
G06F 30/13 - Conception architecturale, p. ex. conception architecturale assistée par ordinateur [CAAO] relative à la conception de bâtiments, de ponts, de paysages, d’usines ou de routes
G06T 17/10 - Description de volumes, p. ex. de cylindres, de cubes ou utilisant la GSC [géométrie solide constructive]
G06F 119/02 - Analyse de fiabilité ou optimisation de fiabilitéAnalyse de défaillance, p. ex. performance dans le pire scénario, analyse du mode de défaillance et de ses effets [FMEA]
8.
METHOD FOR QUICKLY MOUNTING CURVED KEEL IN CURVED METAL ROOF BASED ON BIM
The present invention relates to the technical field of roof engineering construction, and particularly disclosed is a method for quickly mounting a curved keel in a curved metal roof based on BIM. The method specifically comprises the following steps: step S1, using circular tubes as keels, and disposing three positioning lines on each section of keel along an axial direction thereof; step S2, conducting keel machining by using the three positioning lines; step S3, conducting spatial position positioning of a first section of keel on a construction site; step S4, mounting an adjustable keel support corresponding to the first section of keel, and fixing the first section of keel; step S5, connecting and mounting a second section of keel to the first section of keel; step S6, sequentially mounting the remaining keels until all the keels are mounted; and step S7, mounting a panel support on all the keels. According to the present invention, the installation efficiency and the installation precision are greatly improved, and then the construction cost is effectively reduced.
Provided are a layered grouting apparatus and a grouting method. The layered grouting apparatus comprises: a slurry conveying unit and a grouting pipe (10), a plurality of slurry outlet holes (102) being provided on a side wall of a pipe body of the grouting pipe (10) in an axial direction, and a plurality of snap-fit rings (101) being provided on an inner wall of the pipe body of the grouting pipe (10) in the axial direction. The slurry conveying unit is selectively fastened to various depths of the grouting pipe (10) on the basis of structures of the snap-fit rings (101) and inputs a concrete slurry into the grouting pipe (10). Layered grouting of a region to be constructed is implemented by means of the slurry outlet holes (102). According to the described apparatus, reserved snap-fit rings (101) are designed for the grouting pipe (10), and a first support rod (2), a second support rod (4), a first support plate (1), a second support plate (5), and a grouting ring (3) form an expandable support frame, to then be combined with a grouting rubber airbag (6) and a slurry conveying pipe, thus the apparatus can be reused, ensuring the filling degree of each layered grouting, while uneven pressure relief in a grouting process can be effectively limited, thereby ensuring the quality of layered grouting.
The present invention relates to the technical field of hoisting equipment. In particular, disclosed are capacity-expanded anti-tangle hauling equipment and a method for using same. The hauling equipment comprises: a gantry; a winch which is mounted on the gantry and around a drum of which two ropes are wound; a hoisting mechanism which is connected to both the ropes; a fixed pulley mounted in conjunction with one rope; and guide pulley blocks which are configured to guide the two ropes and are arranged corresponding to same on a one-to-one basis, wherein the hoisting mechanism is arranged between the fixed pulley and the guide pulley blocks; and one rope passes through a corresponding guide pulley block and is connected to the side of the hoisting mechanism away from the fixed pulley, and the other rope sequentially passes through a corresponding guide pulley block and the hoisting mechanism and passes around the fixed pulley to be connected to the side of the hoisting mechanism close to the fixed pulley.
A negative pressure gas seal induction-type pipe jacking operation environmental control system, comprising: a turbulent air supply apparatus (1), arranged at a certain distance from a tunneling head (3) and located in a tool pipe (4), the turbulent air supply apparatus forming a gas seal structure of an air curtain with a certain angle with the tunneling head, and an airflow rebounding and convoluting between the air curtain and the tunneling head to form an air turbulent vortex, so that toxic and harmful gases are fully stirred and mixed, and a stable rising airflow is formed; and an air exhaust apparatus (2), arranged in the tool pipe. A first air opening (201) of the air exhaust apparatus is located between the tunneling head and the turbulent air supply apparatus to collect and receive the toxic and harmful gases, and a second air opening (202) is located above the ground to discharge the toxic and harmful gases out of a construction area. The system seals the toxic and harmful gases between the air curtain and the tunneling head, thereby preventing large-range escape; by means of the formed stable rising airflow, the toxic and harmful gases with complex components and too large relative molecular mass differences are efficiently removed at a time, and thus the system has wide adaptability.
A 6S flat-layer building method for a large coke oven body. The 6S flat-layer building method comprises the following steps: constructing an oven body building three-dimensional control network, and setting up a coke-side or machine-side refractory brick receiving platform (32); and on the basis of the three-dimensional control network and the refractory brick receiving platform (32), marking out the laying position of each layer of refractory bricks layer by layer, performing layer-by-layer arrangement on the refractory bricks required by laying of each layer, laying the refractory bricks layer by layer according to mark lines and the arrangement, performing pointing on the built refractory bricks layer by layer, performing layer-by-layer cleaning on the refractory bricks that have been subjected to pointing, and checking and accepting the cleaned refractory bricks layer by layer. On the basis of a three-dimensional control network and a refractory brick receiving platform (32), the building quality of a coke oven body (31) is controlled from the whole at six dimensions, thereby improving the building quality and precision of a large coke oven to the maximum extent, effectively reducing the building technical difficulty and the dependence on high-level oven builders, achieving high-precision rapid building, making the coke oven body (31) regular, clean and smooth, and effectively prolonging the service life of the coke oven.
An BIM technology-based large coke oven overall flat layer building method, comprising the following steps: by using BIM software, constructing special-shaped refractory bricks, and performing primary modeling on a coke oven body; performing professional secondary rechecking on an oven body model; opening refractory brick building model data; performing layout of control network points before building; performing on-site coke oven body overall flat layer building on the basis of the model data; rechecking and accepting the building result of each layer of refractory bricks by using space scanning technology in combination with a BIM; and performing circulation until the building of the oven body is completed.
A dynamic control system and dynamic control method adapted to ventilation of a fully-buried sewage treatment plant. The dynamic control system comprises: a real-time dynamic monitoring module, which is used for monitoring, in real time, the value of a differential pressure between a vehicle ramp and an outdoor environment, the values of the concentrations of harmful gases in areas or rooms, and the values of differential pressures in the areas or rooms; and a dynamic control platform, which is in signal connection with the real-time dynamic monitoring module, wherein the dynamic control platform calculates and adjusts set values of the differential pressures in the areas or rooms according to a control requirement for a real-time flow direction of the harmful gases, determines an air supplement volume of the current environment according to a real-time air exhaust volume and a real-time differential pressure air volume, and regulates and controls, in real time, the rotation speed of an air supplement fan of an air supplement system according to the air supplement volume. By means of uniformly transmitting, to a dynamic control platform, the values of differential pressures in and the concentrations of harmful gases in areas or rooms, and uniformly managing and regulating and controlling an air exhaust system and an air supplement system, controllable ventilation treatment of a fully-buried sewage treatment plant is finally achieved.
The present invention relates to the technical field of steel structure mounting. Particularly disclosed are a tool suitable for positioning, mounting and unloading a large steel structure, and a construction method. The tool comprises: a limiting adapter assembly for supporting and fixing a steel structure; a spherical sliding device connecting to the limiting adapter assembly; a position-locking device provided with an arc-shaped recess; diagonal bracings, each of which has two ends respectively hinged to the position-locking device and the spherical sliding device; a jacking mechanism mounted at the bottom of the position-locking device; and a shim adjusting unit, which is located outside of the jacking mechanism and abuts against the bottom of the position-locking device. Further disclosed is a construction method of a tool suitable for positioning, mounting and unloading a large steel structure. By means of the present invention, a steel structure and components thereof can be effectively and precisely put in place and unloaded, and the present invention has a simple structure and a high practicality.
A BIM-based adjustable comprehensive support and hanger system comprises at least two vertical rods, a buried plate is arranged on an upper portion of each vertical rod, fixing cross arms are connected between the vertical rods, and opposite hanger plates are arranged on every two adjacent vertical rods. An upper portion of a lead screw passes through a hanger plate, and an upper nut which is snap-fit with the upper portion of the hanger plate is provided on the lead screw, a lower portion of the lead screw passes through a movable cross arm, and a lower nut which is snap-fit with the lower portion of the movable cross arm is arranged on the lead screw. The present invention has the beneficial effects that the comprehensive support and hanger system has simple manufacturing process and convenient material selection, and is green, environment-friendly and energy-saving. The comprehensive support and hanger system is of an adjustable structure, has high universality and wide application range, is flexible and convenient to install and disassemble, and is capable of reducing material loss and reducing material cost. By using the comprehensive support and hanger system for construction of the electromechanical comprehensive pipeline of a long and narrow corridor of a basement, the height of the pipeline is flexibly controlled by adjusting the heights of the cross arms and tightening the lower nuts of the lead screws, and the construction efficiency is improved.
F16L 3/20 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers avec disposition particulière permettant au tuyau de bouger permettant un mouvement latéral
F16L 3/22 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers spécialement adaptés pour supporter un certain nombre de tuyaux parallèles séparés par un espace
F16L 3/133 - Supports pour tuyaux, pour câbles ou pour conduits de protection, p. ex. potences, pattes de fixation, attaches, brides, colliers entourant pratiquement le tuyau, le câble ou le conduit de protection comportant un élément entourant pratiquement le tuyau, le câble ou le conduit de protection et accrochées à une potence
H02G 3/30 - Installations de câbles ou de lignes sur les murs, les sols ou les plafonds
17.
Method for reducing blasting vibration of tunneling
A method for reducing blasting vibration of tunneling includes the steps of: dividing the cutting holes into several groups according to different cutting methods; conducting layout and test blasting on one group of cutting holes; testing blasting parameters for the layout and test blasting; calculating an interval t; conducting layout and test blasting on at least two groups of cutting holes again; testing blasting parameters for the layout and test blasting of each group for the second time; taking the minimum interval t of each group as the interval for formal blasting of the remaining groups of cutting holes. The use of the characteristics of the wave in the invention can superpose the peaks and troughs of the vibration wave, and further cancel out mutually; reduce the peaks of the blasting vibration and fill the troughs of the blasting vibration.
A reinforcement cage rolling machine has a driving mechanism; an earth axis connected to a driving end of the driving mechanism; a stable feeding mechanism, connected to the earth axis; a main flange arranged on the earth axis; a secondary flange arranged on the earth axis; a spacing regulating mechanism arranged on the main flange and the secondary flange.
A reinforcement cage rolling machine has a driving mechanism; an earth axis connected to a driving end of the driving mechanism; a stable feeding mechanism, connected to the earth axis; a main flange arranged on the earth axis; a secondary flange arranged on the earth axis; a spacing regulating mechanism arranged on the main flange and the secondary flange.
The spacing regulating mechanism arranged on the main flange and the secondary flange can regulate the spacing between the reinforcements, so as to improve the overall stability of the reinforcement cage meets the quality standard and avoid potential safety hazards.
B21F 27/08 - Fabrication de grillages ou treillis métalliques avec des éléments ou matériaux de connexion additionnels aux croisements
B21F 27/20 - Fabrication de genres ou de portions particulières de treillis par des méthodes ou des moyens spécialement adaptés à cet usage de treillis pour plâtre
19.
Wetland system for treating domestic wastewater and rainwater and application thereof
A wetland system has a wetland structure and a wastewater treatment device. The wetland structure has several planting areas surrounded by hoardings, several planting frames arranged in the hoardings, growing substrates provided in the planting frames, and wetland plants growing on the growing substrates. The wastewater treatment device has a bar screen, a regulating tank, a hydrolysis acidification tank, a contact oxidation tank, an MBR membrane tank, and a clean water tank that are in communication with each other in sequence of waterflow and arranged underground. The bar screen is provided with several bars therein, a lift pump is connected between the regulating tank and the hydrolysis acidification tank, a drainage pump is provided between the MBR membrane tank and the clean water tan. The planting area is connected to the bar screen via pipelines, and the clean water tank is connected to the planting area via pipelines.
C02F 3/32 - Traitement biologique de l'eau, des eaux résiduaires ou des eaux d'égout caractérisé par les animaux ou végétaux utilisés, p. ex. les algues
C02F 11/12 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement
The present invention discloses a pile head girdling device comprising a track arranged on a pile head and coaxial with the pile head, an electric saw installation base arranged on the track in a sliding mode, an electric saw support rotationally arranged on the electric saw installation base and an electric saw arranged on the electric saw support. The beneficial effects of the present invention are as follows: according to the solution, the electric saw cutting position on the pile head is effectively controlled on the same plane, thereby improving the quality of cutting the pile head; and the electric saw cutting position is guided and limited by means of the track, thereby improving the cutting efficiency and precision.
E02D 9/00 - Enlèvement de rideaux de palplanches, de pieux, de tubages ou d'autres coffrages
B26D 1/14 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupantAppareils ou machines à cet effetÉléments coupants à cet effet comportant un élément qui ne suit pas le mouvement de la pièce ayant un élément coupant se déplaçant autour d'un axe avec un élément circulaire, p. ex. un disque
21.
Pile pouring structure based on informatization technology and pile structure
A pile pouring structure includes a steel reinforcement cage, a limiting ring arranged on the outer side of the steel reinforcement cage, a plurality of PVC pipes arranged in the steel reinforcement cage, a cut-off layer arranged on the limiting ring, a two-dimensional code display board arranged in one-to-one correspondence with the steel reinforcement cage, the cut-off layer is annular. The two-dimensional code display board is provided with a two-dimensional code which is scanned to enter an information input interface. Information management is achieved in the pile construction process by scanning the two-dimensional code for inputting pile body strength information, thereby improving the work efficiency. The cut-off layer is used as an interface between a pile body and a pile head so that a part needing to be broken is rapidly positioned. The pile head at a part above the cut-off layer is broken so that the cut-off layer is capable of protecting a lower structure.
The invention discloses a device and a method for accurately fixing an internal waterstop in a lakebed tunnel, comprising two supporting bars arranged in parallel, two transverse clamping bars arranged in parallel between the supporting bars, vertical clamping bars arranged on the transverse clamping bars, wherein the supporting bars, the transverse clamping bars and the vertical clamping bars are mutually perpendicular, at least two vertical clamping bars are arranged on each transverse clamping bar, and the vertical clamping bars are arranged at the inner side of the transverse clamping bars. The beneficial effects of the invention are as follows: With vertical clamping bars that clamp the waterstop, the invention can limit the movement and rotational degree of freedom of the waterstop within in the space, to avoid displacement of the waterstop, thus making the construction more productive.
An end plugging device for pre-stressed pipeline press-grouting. A sealing pipe (4) for covering an anchor (2) is mounted on an anchor backing plate (1), such that the sealing pipe (4) is in sealed connection with the anchor backing plate (1); concrete is poured into a corrugated pipe through a grouting hole on the anchor backing plate (1) so as to perform a press-grouting operation; and the sealing pipe (4) is removed in a concrete initial-setting stage, and the anchor is cleaned, so as to remove the concrete not fully solidified at the anchor. The device can form a sealed space by means of connection between the sealing pipe and the anchor backing plate, and can perform the press-grouting operation after the sealing pipe is mounted, saving additional waiting time thereby effectively shortening the working period, the grouted slurry enters the interior of the sealing pipe through a space between the anchor and the anchor backing plate, such that the pressure on the inner and outer sides of the anchor is kept balanced, and the pressure of the slurry can be continuously kept during the press-grouting to ensure dense press-grouting, thereby ensuring the construction quality and the service life of a bridge.
Disclosed are an informatization technology pile pouring structure and a pile structure, the pile pouring structure comprising a reinforcement cage, a position-limiting ring that is mounted at the exterior of the reinforcement cage, a plurality of PVC pipes that are provided inside of the reinforcement cage, a cut-off layer that is provided on the position-limiting ring, and a two-dimensional code display board that is provided in one-to-one correspondence with the reinforcement cage. The cut-off layer is annular. A two-dimensional code, which is scanned to then enter an information input interface, is provided on the two-dimensional code display board. The beneficial effects of the present invention are: the present solution, by means of scanning a two-dimensional code to input strength information of a pile body, achieves informatization management for a pile construction process, which helps to improve the operation efficiency; the cut-off layer is used as the boundary surface between the pile body and a pile head, thereby rapidly positioning a part requiring removal; and by removing the pile head at the upper part of the cut-off layer, the cut-off layer can protect the structure at the lower part, thus reducing the damage to the part below the cut-off layer during the removal process.
E02D 5/34 - Pieux en béton ou analogue coulés en place
E02D 9/00 - Enlèvement de rideaux de palplanches, de pieux, de tubages ou d'autres coffrages
G06K 17/00 - Méthodes ou dispositions pour faire travailler en coopération des équipements couverts par plusieurs des groupes principaux , p. ex. fichiers automatiques de cartes incluant les opérations de transport et de lecture
A pile head annular cutting device, comprising a track arranged on a pile head and coaxial with the pile head, an electric saw mounting base slidably arranged on the track, an electric saw support rotationally arranged on the electric saw mounting base, and an electric saw arranged on the electric saw support. The present invention has the beneficial effects of the present solution being capable of effectively controlling the pile head cutting position of an electric saw to be kept in the same plane, such that the pile head cutting quality is improved, and the cutting position of the electric saw can be guided and limited by means of the track, thereby facilitating improving cutting efficiency and precision.
E02D 9/00 - Enlèvement de rideaux de palplanches, de pieux, de tubages ou d'autres coffrages
B28D 1/22 - Travail de la pierre ou des matériaux analogues p. ex. briques, béton, non prévu ailleursMachines, dispositifs, outils à cet effet par découpage, p. ex. exécution d'entailles
B26D 1/14 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupantAppareils ou machines à cet effetÉléments coupants à cet effet comportant un élément qui ne suit pas le mouvement de la pièce ayant un élément coupant se déplaçant autour d'un axe avec un élément circulaire, p. ex. un disque
brevets
