Abstract: The iron-based piping element (1), in particular made from cast iron, for a buried pipeline, includes an outer coating (9) including: a first layer (11) having at least one porous layer of zinc/aluminum alloy containing 5 to 60 wt % of aluminum; a second layer (13) of adhesive situated on the first layer (11); and a third layer (15) situated on the second layer (13) and including a synthetic organic material. The method for manufacturing such a piping element is also described.

Abstract: An assembly of covers for a roadway device has a first cover having a first linking side and a first plate-that extends along a first plane of a plate and which includes an upper surface, and second cover having a second linking side that is adjacent to the first linking side and a second plate that extends along a second plane of a plate and which includes an upper surface, wherein the assembly of the covers includes the linking part that connect the first cover to the second cover along the first and second linking sides; wherein the linking part include the hinge that define an axis of a hinging between the first cover and the second cover along the first and second linking sides. The assembly of covers is applicable to access manholes for accessing telecommunications installations or facilities.

Abstract: This hinge assembly comprises a lid with a covering web and a hinge adapted for enabling an angular movement of the lid between an open position and a closed position, the hinge including a first cam and a first counter-cam, the first cam and the first counter-cam cooperating over a first angular range. The hinge comprises an additional cam and an additional counter-cam cooperating over an additional angular range. The first angular range and the additional angular range overlap over an angular overlap range that amounts to at least 60° and over the entire range of which both the first cam and counter-cam and the additional cam and counter-cam cooperate simultaneously. The device can be used for road manholes.

Abstract: A facility suitable for coating the inside of a pipe element with a mortar that comprises a transport device (32) for feeding dry matter of the mortar that includes a transport chamber (48) and a transport member (54) for transporting the dry matter arranged in the transport chamber, the transport chamber being provided with a dry matter inlet (50) and a dry matter outlet (52); a mixing and projection device (34) for mixing the dry matter with liquid matter to obtain the mortar having a mixing member (82) and a mixing chamber (74) wherein the mixing chamber has a dry matter inlet (76) fed by the dry matter outlet (52), a liquid matter inlet (78) and a mortar outlet (80).

Abstract: The street ironwork according to the invention includes a frame (4), a manhole cover (6), a hinge (10) for pivotably connecting the covering element relative to the frame between a closed position and an open position, the hinge including a frame knuckle (20) and a covering element knuckle (22). The street ironwork includes a locking element (40) attached to the covering element knuckle and suitable for preventing the covering element knuckle from being released from the frame knuckle in at least one of the open positions of the covering element relative to the frame or in the closed position.

Abstract: A road device such as a telecommunications access hatch having a frame that delimits an opening, a cover, a first hinge provided with a first cam and a first cam follower, which are designed to guide the cover between a released open position and a closed position, a first securing member and a first counterpart securing member that prevent the cover from lifting when in the closed position; and a first support bracket added on the frame that bears the first cam and the first securing member.

Abstract: The street ironwork according to the invention includes a frame (4), a manhole cover (6), a hinge (10) for pivotably connecting the covering element relative to the frame between a closed position and an open position, the hinge including a frame knuckle (20) and a covering element knuckle (22). The street ironwork includes a locking element (40) attached to the covering element knuckle and suitable for preventing the covering element knuckle from being released from the frame knuckle in at least one of the open positions of the covering element relative to the frame or in the closed position.

Abstract: The present invention relates to a sealing device, of the type including a base body suitable for sealing an opening, movable between an open position and a closed position, a thrust element having first and second ends, and a slack configuration and a tight configuration, and the first end of the thrust element being connected to the base body.

Abstract: The present fastener (36) for street ironwork includes a fastening or locking element (56). The fastener (36) includes a retaining foot (60) suitable for removably connecting the fastener (36) to a member of the street ironwork, via a receiving cavity (40) made in the member of the street ironwork by element of a shape-matching connection. The invention further relates to the use in attaching jacks to man hole covers.

Abstract: This assembly between a spigot and a socket comprises a sealing gasket provided with a locking insert which comprises a head and a foot. The head comprises a radial projection, designed to press against a bottom surface of an anchoring groove belonging to the socket and a first inclined projection, designed to press against an inclined surface of the anchoring groove. The head also comprises a frontal projection which is offset from the first inclined projection and designed to press against an annular frontal surface of the anchoring groove. Application to the connecting of cast iron pipes.

Abstract: The invention relates to a facility suitable for coating the inside of a pipe element with a mortar. It includes a feeding device (32) suitable for feeding the dry matter of the mortar, the feeding device including a feeding chamber (48) and a member (54) for transporting the dry matter, arranged in the feeding chamber, the feeding chamber being provided with a dry matter inlet (50) and a dry matter outlet (52). The facility also includes a mixing device (34) suitable for mixing the dry matter with liquid matter in order to obtain the mortar, said mixing device having a mixing member (82) and a chamber (74) for mixing the dry matter with the liquid matter. The mixing chamber has a dry matter inlet (76), a liquid matter inlet (78) and a mortar outlet (80). The dry matter outlet (52) of the transport device leads into the dry matter inlet (76) of the mixing chamber, and the feeding member (54) and the mixing member (82) are separate members. The invention can be used for the production of wastewater pipes.

Abstract: The invention relates to a sealing device which includes: a base body (30) suitable for sealing an opening (8), movable between an open position and a closed position; a thrust element (34) having first (36) and second (38) ends, and a tight configuration and a slack configuration, the first end (36) of the thrust element being connected to the base body (30). The sealing device also includes a linking element (42) connected to the base body (30) and connected to the second end (38) of the thrust element. The sealing device includes a bearing member (50). The linking element (42) allows the thrust element to change from the tight configuration the slack configuration and vice-versa.

Abstract: A manhole assembly including a frame and at least a pair of cover plates that are receivable in and disengageable from the frame to permit selective closing and opening of an aperture, the periphery of which is defined by the frame. The cover plates substantially occupy the aperture when received in the frame. A first cover plate of a pair thereof is smaller than a second cover plate of the pair. The first cover plate is hingeable relative to the second cover plate, while the latter is received in the frame, from a closed position received in the frame to an open position in which a first part of the aperture is open. The second cover plate is removable from the frame, when the first cover plate is disengaged from the frame, to open a second part of the aperture.

Abstract: A pipe includes a base body (8) of metal, defining an outer surface (10) of the base body and an inner surface (12) of the base body, and an inner coating (14) which is applied to the inner surface (12) of the base body. The inner coating (14) includes a thermoplastic material or a polyamide. The pipe may be used in the transport of drinking water.

Abstract: The present fastener (36) for street ironwork includes a fastening or locking element (56). The fastener (36) includes a retaining foot (60) suitable for removably connecting the fastener (36) to a member of the street ironwork, via a receiving cavity (40) made in the member of the street ironwork by element of a shape-matching connection. The invention further relates to the use in attaching jacks to man hole covers.

Abstract: A method of manufacturing a cast article including a frame that in use of the article defines an aperture; and a further component that is in use retained moveably captive relative to the frame. The method casts the further component and respective first and second frame members, the further component and the frame members being securable together to form the article, and subsequently assembles the frame members and the further component together to form the article. A gully grate results from practicing the method.

Abstract: A cover for a road system device provided with a frame comprises: a blocking member and a base body defining a covering surface for the road system device, extending in a cover plane, and having a housing for receiving the blocking member. The housing and the blocking member are adapted for blocking the cover relative to the frame or to a neighboring cover. The housing is adapted to maintain the blocking member relative to the base body autonomously and to oppose a movement of the blocking member in a direction extending perpendicular to the cover plane and tending to move the blocking member away from the covering surface. The invention is applicable to access manholes for underground installations.

Abstract: This hinge assembly comprises a lid with a covering web and a hinge adapted for enabling an angular movement of the lid between an open position and a closed position, the hinge including a first cam and a first counter-cam, the first cam and the first counter-cam cooperating over a first angular range. The hinge comprises an additional cam and an additional counter-cam cooperating over an additional angular range. The first angular range and the additional angular range overlap over an angular overlap range that amounts to at least 60° and over the entire range of which both the first cam and counter-cam and the additional cam and counter-cam cooperate simultaneously. The device can be used for road manholes.

Abstract: This tubular joint includes a bell end (4) which is equipped with an internal groove (18) and in which is inserted a spigot end (6), a seal (8) and a locking element (12). The groove forms a groove wall (20). The spigot end (6) and the bell end (4) define a radial clearance (J). The locking element (12) includes a fixing tooth (36) and a contact face (28) for application against the wall (20) when the clearance (J) is within a first range of clearances. When the clearance is within a second range of clearances, the locking element (12) forms a rocking point (34) for rocking round the groove wall (20) and the fixing tooth (36) bites into the external surface (22) by a flying buttress effect of the locking element (12).

Abstract: This device for closing an opening includes a frame (4) that delimits a pass-through access opening (10) suitable for receiving a cover (6) and which includes a frame hinge knuckle (18). The frame hinge knuckle (18) includes a hinge surface (38) and a pass-through hinge knuckle opening (40). The frame (4) has an exterior side and an interior side. The device also includes an inserted plug (52) positioned in a recess (50) of the frame hinge knuckle (18) located on the inner side of the hinge surface (38) and which makes the inner side of the frame hinge knuckle (18) appreciably sealed off from the outside.