Roller mill of the edge runner type

Claim 2

A roller mill of the edge runner type comprising, in combination, a rotary grinding table, roll means comprising a plurality of pivotally mounted rolls for rolling engagement on material on the grinding table, a plurality of box-shaped supports which are inherently transportable and to each of which a respective roll is individually journaled, box-shaped intercalated connecting pieces between adjacent box-shaped supports securing the supports in integrated relation and forming a unit resistant to torsion caused by rotation of the grinding table and rolls in engagement with material being ground.

Claim 3

The roller mill of the edge type in accordance with claim 1, a housing operatively associated with said torsion-resistant unit, and drive means, said grinding table and the rolls being substantially enclosed in said housing.

Claim 4

The roller mill of the edge runner type in accordance with claim 1, in which said box shaped supports include a swinging lever including an upper part in the form of a fork, a central lever part mounted within the fork, said central lever part being detachably connected with ends of the fork of the swinging lever, an axis pin shrunk to the central lever part so that the central part of the lever can be swing or pivoted together with the pin.

Claim 5

In a roller mill of the edge runner type comprising, in combination: horizontally-disposed rotary grinding table means for receiving material to be ground; support means comprising a plurality of supports spaced around the periphery of said grinding table means, each support means including means for adjustably supporting-and-journaling individual grinding rollers; edge-type grinding rollers journaled on the means for adjustably supporting-and-journaling and being rollingly and operatively related to said grinding table means for grinding material disposed thereon, said support means being subject to torsional forces resulting from reaction during grinding between said table and rollers; and connecting means interposed between and connected to adjacent support means and forming a torsion-resistant, ring-like unit for absorbing and resisting torsional forces generated, the improvement in which said means for adjustably support-and-journaling the individual grinding rollers includes a lever member intermediately pivoted on each of the respective support means on a horizontal axis of rotation, power means operatively connected to the lever member for adjustably imposing force on a lower portion of said lever member; a lever part including means independently pivotably and adjustably connected to said lever member; and journal means mounted on said lever part and connected to said rollers whereby each roller member can be selectably positioned from an operative to an inoperative position.

Claim 6

In a roller mill of the edge runner type comprising, in combination: horizontally-disposed rotary grinding table means for receiving material to be ground; support means comprising a plurality of supports spaced around the periphery of said grinding table means, each support means including means for adjustably supporting-and-journaling individual grinding rollers; edge-type grinding rollers journaled on the means for adjustably supporting-and-journaling and being rollingly and operatively related to said grinding table means for grinding material disposed thereon, said support means being subject to torsional forces resulting from reaction during grinding between said table and rollers; and connecting means interposed between and connected to adjacent support means and forming a torsion-resistant, ring-like unit for absorbing and resisting torsional forces generated, the improvement in which said means for adjustably support-and-journaling the individual grinding rollers includes a lever member intermediately pivoted on each of the respective support means on a horizontal axis of rotation, power means operatively connected to the lever member for adjustably imposing force on a lower portion of said lever member; a lever part including means independently pivotably and adjustably connected to said lever member; and journal means mounted on said lever part and connected to said rollers whereby each roller member can be selectably positioned from an operative to an inoperative position.

Claim 7

The structure as claimed in claim 4 in which said lever member comprises a fork-like member and said lever part is pivoted on trunion-like elements disposed parallel to the horizontal axis of rotation of said lever member.

Claim 8

The structure as claimed in claim 4 in which said power means comprises a fluid motor including a piston-and-cylinder combination.

Claim 9

The structure as claimed in claim 6 in which said piston-and-cylinder combination includes a shockabsorbing fluid chamber means in communication therewith.

Claim 10

The structure as claimed in claim 4 in which said connecting means between adjacent supports comprises a hollow common passage structure including means for conveying material away from said grinding table in one direction and an air passage portion conveying air to the grinding table simultaneously in an opposite direction.