He taputapu te mata kōne i hangaia ki te tungsten, ki te maitai whakapakeke rānei, hei kuru i ngā toka i te wā e keri ana. Ko te tikanga he mea hanga mai i ngā wahi kōne e toru e hurihuri ana, he niho mārō hei wawahi i te toka kia iti ake. He taputapu e whakamahia whānuitia ana i roto i ngā mahi keri kore-awa.
Ko tētahi atu ingoa mō te mata kōne ko te mata kōne roera.
He whakamārama a Trenchlesspedia mō te Cone Bit
Ko Howard Hughes, Sr. te ingoa i hangaia ai te mata keri toka "Sharp–Hughes". I whiwhi ia i te mana pateni mō tēnei mea i te tau 1909. Ko tana tama, te tangata rongonui a Howard Hughes, Jr., i noho hei tētahi o ngā tāngata whai rawa o te ao mā te whakamahi i tēnei mea i te wā o te puāwaitanga hinu o Texas.
Nā te kaha ki te kuru i te toka i te wā e keri ana, i tino pai ai te mata kōne. Ko te putanga hou o te mata kōne, te mata keri hurihuri toru-kōne, e whakamahi ana i te huinga o te hurihuri me te hurihanga o ngā rauemi whakapakeke hei wawahi i te toka i te mea ka werohia hohonu ki roto i te whenua. Ka akiakihia te wai tere-teitei mā roto i te porowhita o te aho keri, e tango ana i ngā wahi toka pakaru ka whakahoki ki te mata.
Wā tuku: Hepetema-01-2022