1. Isigubhu sangaphakathi yisigubhu esinesakhiwo esiyi-octagonal, okwenza umphumela wokuthambisa wesikhumba usebenze kahle. I-interlayer ethuthukisiwe yokushisa kagesi kanye nesistimu yokujikeleza iyasetshenziswa. Ngenxa yokuthi Iwuhlelo oluhlakaniphile lokulawula izinga lokushisa lokushisisa, izinga lokushisa lingalawulwa ngokunembile.
2. Isivinini sesigubhu silawulwa ngokusebenzisa isiguquli sefrikhwensi ngeketango. Lesi sigubhu sinemisebenzi yesikhathi yokusebenza okuphelele, ukuzungezisa ukuya phambili nokuhlehlela emuva kanye nokuzungezisa indawo eyodwa. Isikhathi sokusebenza okuphelele, ukuzungezisa phambili nangemuva kanye nesikhathi phakathi kokuya phambili nokubuyela emuva kungalawulwa ngokulandelana ukuze isigubhu silawulwe ngokulandelana ukuze isigubhu sisebenze ngokuqhubekayo noma kancane kancane.
3. Iwindi lokubuka lesigubhu lenziwe ngengilazi eqinile ebonisa ngale namandla aphezulu efaka ukumelana nezinga lokushisa eliphezulu. Kunezimbobo zokuphumela engilazini zokungena komoya ngaphakathi kwesigubhu.
