Abstract: An installation for processing articles, the installation comprising an article-transfer device extending between two processing stations, the transfer device comprising a rail having at least one rectilinear segment and defining a closed travel path for carriages that are mounted on the rail to move freely therealong, each of which is provided with means for driving at least one article, the transfer device comprising a screw extending along the rectilinear segment of the rail and having a thread that co-operates with fingers secured to the carriages in order to drive the carriages along the rectilinear segment.

Abstract: A device for transferring articles between a first machine implementing intermittent movement of the articles at a first predetermined pitch, and a second machine implementing continuous movement of the articles at a second predetermined pitch. The device includes a flexible conveyor extending around at least two pulleys so as to have at least one rectilinear segment facing a conveyor of the first machine and a rounded segment facing a conveyor of the second machine. The flexible conveyor of the device carries laterally-projecting article-handling members arranged at regular intervals in such a manner that the handling members are at a pitch corresponding to the first pitch in the rectilinear segment. The rounded segment has a radius such that the handling members are at a pitch corresponding to the second pitch in the rounded segment.

Abstract: An installation for processing articles, the installation comprising an article-transfer device extending between two processing stations, the transfer device comprising a rail having at least one rectilinear segment and defining a closed travel path for carriages that are mounted on the rail to move freely therealong, each of which is provided with means for driving at least one article, the transfer device comprising a screw extending along the rectilinear segment of the rail and having a thread that co-operates with fingers secured to the carriages in order to drive the carriages along the rectilinear segment.

Abstract: A device for screwing caps onto receptacles, the device comprising a rotary spindle having a first end provided with a cap gripper head and a second end connected to a two-portion clutch member, one of which portions is constrained to rotate with the second end of the rotary spindle, and the other of which portions is constrained to rotate with a drive shaft on the same axis as the spindle and associated with a drive member, wherein the portions of the clutch member comprise a magnetic bell and a magnetic core having dimensions suitable for enabling it to be engaged in the bell, the device further comprising a displacement member for displacing the bell and the core relative to each other between a position in which the core is engaged in the bell and a position in which the core is disengaged from the bell.

Abstract: A device for screwing caps onto receptacles, the device comprising a rotary spindle having a first end provided with a cap gripper head and a second end connected to a two-portion clutch member, one of which portions is constrained to rotate with the second end of the rotary spindle, and the other of which portions is constrained to rotate with a drive shaft on the same axis as the spindle and associated with a drive member, wherein the portions of the clutch member comprise a magnetic bell and a magnetic core having dimensions suitable for enabling it to be engaged in the bell, the device further comprising a displacement member for displacing the bell and the core relative to each other between a position in which the core is engaged in the bell and a position in which the core is disengaged from the bell.

Abstract: A device for screwing caps onto receptacles, the device comprising a rotary spindle having a first end provided with a cap gripper head and a second end connected to a two-portion clutch member, one of which portions is constrained to rotate with the second end of the rotary spindle, and the other of which portions is constrained to rotate with a drive shaft on the same axis as the spindle and associated with a drive member, wherein the portions of the clutch member comprise a magnetic bell and a magnetic core having dimensions suitable for enabling it to be engaged in the bell, the device further comprising a displacement member for displacing the bell and the core relative to each other between a position in which the core is engaged in the bell and a position in which the core is disengaged from the bell.

Abstract: A device for screwing caps onto receptacles, the device comprising a rotary spindle having a first end provided with a cap gripper head and a second end connected to a two-portion clutch member, one of which portions is constrained to rotate with the second end of the rotary spindle, and the other of which portions is constrained to rotate with a drive shaft on the same axis as the spindle and associated with a drive member, wherein the portions of the clutch member comprise a magnetic bell and a magnetic core having dimensions suitable for enabling it to be engaged in the bell, the device further comprising a displacement member for displacing the bell and the core relative to each other between a position in which the core is engaged in the bell and a position in which the core is disengaged from the bell.

Abstract: The invention relates to a metering pump comprising a pump chamber (2) having a longitudinal axis (3) and presenting an admission orifice (4) and a delivery orifice (5), a piston (6; 30) pierced by a pump orifice (7), a drive rod (8) for driving the piston (6; 30), a non-return valve (17) mounted to move relative to the piston (6; 30), and a sleeve (9) of non-magnetic material mounted stationary inside the pump body (1) parallel to the longitudinal axis (3) of the pump chamber (2) and possessing a closed end (10) situated inside the pump body (1), and an open end (11) opening out to the outside of the pump body (1), the drive rod (8) being fitted with a magnetic element (12) co-operating, through the sleeve, with a magnetic cage (13) surrounding the sleeve (9) and coupled to the piston (6; 30).