Abstract: The installation comprises a preparation station for preparing strips by cutting a straight wire band, a jointing station arranged to butt-joint the strips obtained from the preparation station so as to form a reinforcing ply, and a station for turning over strips, which is interposed between the preparation station and the jointing station. The installation also comprises a first receiving surface, arranged to receive a strip, a second receiving surface associated with a reversing device which is arranged to transfer a strip from said first receiving surface to said second receiving surface, by thus turning over the strip. A gripping member is arranged to take a strip from the first or second receiving surface in order to allow the jointing station to selectively construct a reinforcing ply with a left-hand ply handle or with a right-hand ply angle.

Abstract: A drum for producing a tire casing blank comprises a support and sectors forming a circumferential face of the drum. Each sector has a circumferential outer face having a contour of general trapezoidal form and is mounted so as to be movable relative to the support in a non-radial predetermined direction relative to an axis of rotation of the drum and intercepting this axis.

Abstract: The installation comprises a preparation station for preparing strips by cutting a straight wire band, a jointing station arranged to butt-joint the strips obtained from the preparation station so as to form a reinforcing ply, and a station for turning over strips, which is interposed between the preparation station and the jointing station. The installation also comprises a first receiving surface, arranged to receive a strip, a second receiving surface associated with a reversing device which is arranged to transfer a strip from said first receiving surface to said second receiving surface, by thus turning over the strip. A gripping member is arranged to take a strip from the first or second receiving surface in order to allow the jointing station to selectively construct a reinforcing ply with a left-hand ply handle or with a right-hand ply angle.

Abstract: A drum for building a green tire casing having: sectors that form a circumferential face of the drum, and at least one cam for controlling a radial movement of the sectors with respect to a rotation axis of the drum. The cam has two main faces and is designed such that a monotonous movement of the cam first of all causes the radial movement of some of the sectors by virtue of ramps situated on its first face without modifying a radial position of the other sectors, and then causes the radial movement of the other sectors by virtue of ramps situated on its second face, the movement of all of the sectors then being simultaneous.

Abstract: A drum is provided for building a green tire casing. The drum includes sectors, an expander, and an adjuster. The sectors form a circumferential face of the drum. The expander moves the sectors in a radial direction such that, at any given time, all the sectors extend at a same distance from an axis of the drum. The adjuster moves the sectors in the radial direction separately from movement of the sectors caused by the expander. Movement of the sectors by the adjuster is such that, at any given time, all the sectors extend at an equal distance from the axis of the drum. The expander is usable to move the sectors regardless of a position of the sectors caused by an operation of the adjuster.

Abstract: The drum (2) for building a green tire casing comprises: sectors (8) that form a circumferential face of the drum, expansion means (40, 36, 28, 30, 32) that are able to move the sectors in a radial direction such that, at any time, all of the sectors extend at one and the same distance from the axis, and adjustment means (12, 22) that are separate from the expansion means and are able to move the sectors in a radial direction such that, at any time, all of the sectors extend at one and the same distance from the axis. The expansion means are usable regardless of a position of the sectors under the effect of the adjustment means.

Abstract: A drum for producing a tire casing blank comprises a support and sectors forming a circumferential face of the drum. Each sector has a circumferential outer face having a contour of general trapezoidal form and is mounted so as to be movable relative to the support in a non-radial predetermined direction relative to an axis of rotation of the drum and intercepting this axis.

Abstract: A device for adjusting the delivery rate of a linear element. The device forms a delivery path for the linear element between an inlet to the device at a delivery rate that is substantially constant and an outlet from the device at a delivery rate that is variable and substantially periodic and varies the length of the path of the linear element in application of a predetermined periodic relationship. The device includes a plurality of pulleys movable in rectilinear translation periodically in sinusoidal manner.

Abstract: A preparation contains an aqueous liquid part, a solid part comprising at least one silicate selected from tricalcium silicate Ca2SiO5 and dicalcium silicate Ca2SiO4; and calcium chloride CaCl2 and a water reducing agent which are both contained in at least one of the aforementioned parts. According to the invention, the solid part and the liquid part are intended to be mixed in order to obtain the material. The preparation can be used to restore a mineralized substance, particularly in the dental field.

Abstract: A device for adjusting the delivery rate of a linear element. The device forms a delivery path for the linear element between an inlet to the device at a delivery rate that is substantially constant and an outlet from the device at a delivery rate that is variable and substantially periodic and varies the length of the path of the linear element in application of a predetermined periodic relationship. The device includes a plurality of pulleys movable in rectilinear translation periodically in sinusoidal manner.

Abstract: A sheathed thread comprises a bare thread coated in a rubber sheath. The sheath comprises a plurality of segments spaced apart from one another along the bare thread in such a manner that bare portions of thread alternate with sheathed portions of thread. The device for fabricating the sheathed thread comprises a sheathing chamber through which the thread passes. An isolator member is movable between a position in which it isolates the portion of the thread passing through the sheathing chamber from the rubber, and a position in which it puts the portion of the thread passing through the sheathing thread into contact with the rubber.