Carbide tip and pick

Details Carbide tip and pick Carbide tip and pick

E - Fixed Constructions

21

C

E21C 35/18 (2006.01) E21C 35/183 (2006.01)

Patent

CA 2078417

-8- ABSTRACT CARBIDE TIP AND PICK A carbide mineral cutting tip (5) comprises a solid carbide body having at least one front face (6); at least one top face (9); a bottom, seating face (12); a rear face (20); and lateral, side faces (13), the tip (5) comprising a main tip portion (14) and an extended tail portion (15) the rear face (20) being provided at the end of the extended tail portion (15), whereby the front-to-rear length A to C of the tip (5) approximates to twice the depth of the tip (5) represented by the top-to-bottom length D to E of the front face (6), with two faces (10) converging to an apex (11) defining the top face (9) of the main tip portion (14) and with the top face of the tail portion (15) defined by another two faces (18) converging to a top apex (19) which is contiguous with the top apex (11) of the main tip portion (14) at an increased back clearance angle compared with that of the main tip portion (14). The invention also includes a pick (1) provided with such a tip (5).

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