The various embodiments disclosed and pictured illustrate a hammer for comminuting various materials. The embodiments pictured and described herein are primarily for use with a rotatable hammermill assembly. The hammer includes a connector end having a rod hole therein, a contact end for delivery of energy to the material to be comminuted, and a neck affixing the connector end to the contact end. The neck is formed with at least one neck recess therein. In other embodiments, one or more shoulders are positioned around the periphery of the rod hole for added strength. In still other embodiments, the contact end is configured with more than one contact surface.
1. A hammer for use in a rotatable hammermill assembly, said hammer comprising:
a. a connector end;
b. a rod hole positioned in said connector end;
c. a neck having a first and second end, said neck first end connected to said connector end;
d. a contact end connected to said neck second end;
e. a neck recess formed in said neck between said neck first and second ends;
f. a first shoulder adjacent top and surrounding a first portion of said rod hole; and,
g. a second shoulder adjacent to and surrounding a second portion of said rod hole, wherein said first shoulder and said second shoulder are non-symmetrical about the longitudinal axis of said rod hole.
2. The hammer according to claim 1 wherein said hammer further comprises a plurality of welds affixed to said contact end.
3. The hammer according to claim 1 wherein said contact end is further defined as comprising:
a. a first contact surface;
b. an interstitial area adjacent said first contact surface; and
c. a second contact surface adjacent said interstitial area.
4. The hammer according to claim 1 wherein said neck is further defined as having neck edges that are not linear.
5. The hammer according to claim 1 wherein said hammer is further defined as being forged.
6. The hammer according to claim 1 wherein each side of said hammer comprises a neck recess.
7. A hammer for use in a rotatable hammermill assembly, said hammer comprising:
a. a connector end;
b. a rod hole positioned in said connector end;
c. a first shoulder surrounding a first portion of said rod hole;
d. a second shoulder surrounding a second portion of said rod hole wherein said first shoulder and said second shoulder are non-symmetrical about the longitudinal axis of said rod hole;
e. a neck having a first and second end, said neck first end connected to said connector end;
f. a contact end connected to said neck second end; and
g. a neck recess formed in said neck between said neck first and second ends.
8. The hammer according to claim 7 wherein said first shoulder is further defined as being generally triangular in shape, wherein the vertex is pointed toward said contact end.
9. The hammer according to claim 8 wherein said hammer further comprises a notch, and wherein said notch is positioned in said first shoulder.
10. The hammer according to claim 9 wherein said contact end is further defined as comprising:
a. a first contact surface;
b. an interstitial area adjacent said first contact surface; and
c. a second contact surface adjacent said interstitial area.
11. The hammer according to claim 10 wherein each side of said hammer comprises a neck recess.