No ke aha he 21-niho pāpale ma kēlā me kēia pāpale ʻōmole pia?

I ka hopena o ka makahiki 1800, ua hana a hoʻopaʻa ʻo William Pate i ka pāpale ʻōmole niho 24. Ua hoʻomau ka pāpale niho 24 i ke kūlana ʻoihana a hiki i ka makahiki 1930.
Ma hope o ka puka ʻana mai o nā mīkini maʻalahi, ua hoʻokomo ʻia ka pāpale ʻōmole i loko o kahi hose i hoʻokomo ʻia, akā i ke kaʻina hana o ka hoʻohana ʻana i ka pāpale 24-niho ua ʻike ʻia he maʻalahi loa ka pale ʻana i ka hose o ka mīkini hoʻopiha piha, a ma hope e hoʻohālikelike ʻia i ka pāpale ʻōmole niho 21 i kēia lā.
Loaʻa i ka pia ka nui o ka carbon dioxide, a ʻelua mau koi kumu no ka pāpale, hoʻokahi kahi sila maikaʻi, a ʻo ka mea ʻē aʻe e loaʻa i kahi occlusion, i kapa pinepine ʻia he pāpale ikaika. ʻO ia ke ʻano o ka helu ʻana o nā pleats i kēlā me kēia pāpale e kūlike me ka wahi pili o ka waha o ka ʻōmole e hōʻoia i ka nui o ka ʻili o kēlā me kēia ʻāpana, a e piʻi aʻe ke sila wavy ma waho o ka pāpale. friction a hoʻomaʻamaʻa i ka wehe ʻana, me ka pāpale hue niho 21 ka koho maikaʻi loa e hoʻokō i kēia mau koi ʻelua.
A ʻo kekahi kumu ʻē aʻe e pili ana ka helu o nā serrations ma ka pāpale i ka 21 me ka wehe ʻana i ka hue. Nui nā kinoea i loko o ka pia, no laila inā wehe pono ʻole ʻia, maʻalahi loa ka hōʻeha ʻana i nā kānaka. Ma hope o ka hana ʻana o ka ʻōmole wehe e pili ana i ka wehe ʻana i ka pāpale ʻōmole, a ma o nā niho ʻike i hoʻololi mau ʻia, a ua hoʻoholo hope ʻo ka pāpale ʻōmole no ka pāpale hue niho 21, wehe ka maʻalahi a palekana, no laila ʻike ʻoe i nā mea āpau. He 21 mau serration nā pāpale omole pia.