Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
220 words
In an impact crusher, a combination comprising a housing having an inlet for material to be comminuted and an outlet for comminuted material; a rotor provided with beaters and mounted in said housing; an impact or grinding means mounted in said housing for movement toward and away from said rotor and defining therewith a gap through which the material to be comminuted passes on its way from said inlet toward said outlet and is comminuted by said rotor beaters and said impact or grinding means; and adjusting means for varying the width of said gap, having a lost motion to allow the impact or grinding means to yield in direction away from said rotor and including carrier means connected with said impact or grinding means and extending from said housing, holder means connected with said carrier means outside of said housing, motor means operable to move said holder means at least in a direction to increase the width of said gap, and at least one insert mounted at the other side of said housing and having portions of different thicknesses, said insert being movable between said holder means and said housing to thereby determine the minimum width of said gap depending on the thickness of that portion of said insert which is located between said housing and said holder means.
Claim 2
Dependent Claim
220 words
In an impact crusher, a combination comprising a housing having an inlet for material to be comminuted and an outlet for comminuted material; a rotor provided with beaters and mounted in said housing; an impact or grinding means mounted in said housing for movement toward and away from said rotor and defining therewith a gap through which the material to be comminuted passes on its way from said inlet toward said outlet and is comminuted by said rotor beaters and said impact or grinding means; and adjusting means for varying the width of said gap, having a lost motion to allow the impact or grinding means to yield in direction away from said rotor and including carrier means connected with said impact or grinding means and extending from said housing, holder means connected with said carrier means outside of said housing, motor means operable to move said holder means at least in a direction to increase the width of said gap, and at least one insert mounted at the other side of said housing and having portions of different thicknesses, said insert being movable between said holder means and said housing to thereby determine the minimum width of said gap depending on the thickness of that portion of said insert which is located between said housing and said holder means.
Claim 3
Dependent Claim
25 words
A combination as defined in claim 1, further comprising second motor means for moving said insert with respect to said housing and said holder means.
Claim 4
Dependent Claim
28 words
A combination as defined in claim 1, wherein said carrier means comprises a plurality of discrete carriers and said holder means comprises a crosshead rigid with said carriers.
Claim 5
Dependent Claim
39 words
A combination as defined in claim 1, wherein said adjusting means further comprises a platform interposed between said holder means and said insert, said adjusting means further comprising yieldable cushioning means interposed between said holder means and said platform.
Claim 6
Dependent Claim
19 words
A combination as defined in claim 4, wherein said cushioning means comprises at least one set of dished springs.
Claim 7
Dependent Claim
25 words
A combination as defined in claim 4, wherein said motor means comprises a fluid-operated cylinder and piston unit connected between said platform and said housing.
Claim 8
Dependent Claim
19 words
A combination as defined in claim 1, wherein said motor means comprises a double-acting fluid-operated cylinder and piston unit.
Claim 9
Dependent Claim
32 words
A combination as defined in claim 1, wherein said impact or grinding means is pivotable in said housing and normally tends to move nearer to said rotor under the action of gravity.
Claim 10
Dependent Claim
18 words
A combination as defined in claim 1, further comprising means for biasing said holder means against said insert.
Claim 11
Dependent Claim
13 words
A combination as defined in claim 1, wherein said insert is a wedge.
Claim 12
Dependent Claim
12 words
A combination as defined in claim 1, wherein said insert is stepped.