Pulverizer

Claim 2

A pulveriser for glass containers, comprising a barrel, a lid closing an upper end of said barrel, a flap mounted in said barrel and movable between a closed position and an open position, said flap dividing the interior of said barrel when in a closed position into a first compartment above said flap defining a filling chamber and a second compartment below said flap defining a pulveriser chamber, a pulverising rotor having blades mounted in said second compartment, and a mechanism comprising an arm moveable between a first position in which it locks said lid and another position in which said arm disengages said lid and comprising a cam integral with said arm, said cam having two rolling tracks, a lever pivotally mounted on said barrel adjacent said flap having one end connected to said flap and an opposite end, and a roller attached to said opposite end of said lever engageable successively on said two rolling tracks of said cam.

Claim 3

A pulveriser, in particular for glass containers, comprising a barrel, a lid closing an upper end of the barrel, a removable container at the base of the barrel, a flap mounted in the barrel and movable between a closed position and an open position, in said closed position said flap dividing the interior of said barrel into a first compartment acting as a filling chamber between said flap and said lid and a second compartment between said flap and said container, a pulverising rotor equipped with blades mounted in said second compartment which thus acts as a pulverising chamber, and a mechanism comprising an arm fitted in such a way that in a first position it locks the lid and in another position the arm disengages the lid, this mechanism also comprising means such that in said first position these means allow said flap to be opened and in said other position they keep said flap closed, a cam integral with said arm, said cam being arranged in such a way as to present two rolling tracks, a lever integral with said flap and pivoting in the region of its center about a pivot fixed to said barrel, and a roller attached to one end of said lever, said roller being mounted in such a way as to roll successively on said two rolling tracks of the cam.

Claim 4

A pulveriser, in particular for glass containers, comprising a barrel, a lid closing an upper end of the barrel, a removable container at the base of the barrel, a flap mounted in the barrel and movable between a closed position and an open position, in said closed position said flap dividing the interior of said barrel into a first compartment acting as a filling chamber between said flap and said lid and a second compartment between said flap and said container, a pulverising rotor equipped with blades mounted in said second compartment which thus acts as a pulverising chamber, and a mechanism comprising an arm fitted in such a way that in a first position it locks the lid and in another position the arm disengages the lid, this mechanism also comprising means such that in said first position these means allow said flap to be opened and in said other position they keep said flap closed, a cam integral with said arm, said cam being arranged in such a way as to present two rolling tracks, a lever integral with said flap and pivoting in the region of its center about a pivot fixed to said barrel, and a roller attached to one end of said lever, said roller being mounted in such a way as to roll successively on said two rolling tracks of the cam.

Claim 5

A pulveriser according to claim 2, wherein the cam comprises a body featuring a curved rolling track providing one of said two rolling tracks and a catch articulated at one end on a pivot integral with the said body of the cam, and having its other end, which rests on a part of the curved rolling track, disposed to form a second rectilinear rolling track providing the other of said two rolling tracks.

Claim 6

A pulveriser according to claim 2, wherein the rotor is mounted on a horizontal shaft in the pulverising chamber and the flap is arranged so that, in the closed position, the flap directs the articles to be treated towards one side of the pulverising chamber, the direction of rotation of the rotor being such that it displaces upwards the articles released by the flap and sliding essentially along said one side of the wall of the barrel.

Claim 7

A pulveriser according to claim 2, wherein said barrel of the pulveriser has a shape such as to allow complete retraction of the flap in the fully opened position.

Claim 8

A pulveriser according to claim 2, wherein said rotor is mounted in the pulverising chamber in such a way as to leave a gap of less than 0.7 mm between the ends of the rotor blades and the wall of the pulverising chamber, on the operative cutting side of the blades.

Claim 9

A pulveriser according to claim 6, wherein the rotor is driven at a speed of the order of 3,000 rpm.