1 9 6 3 ▁establish ments ▁in ▁Ontario <0x0A> </s> ▁Port land ▁Road ▁is ▁a ▁town ▁in ▁the ▁Sh ire ▁of ▁Cook , ▁Queensland , ▁Australia . ▁The ▁town ▁is ▁within ▁the ▁local ity ▁of ▁Lock hart ▁River . ▁ ▁References ▁ ▁Category : Sh ire ▁of ▁Cook ▁Category : Local ities ▁in ▁Queensland <0x0A> </s> ▁The ▁gy ro ▁mon or ail , ▁gy ro scop ic ▁mon or ail , ▁gy ro - st abil ized ▁mon or ail , ▁or ▁gy ro car ▁are ▁terms ▁for ▁a ▁single ▁rail ▁land ▁vehicle ▁that ▁uses ▁the ▁gy ro scop ic ▁action ▁of ▁a ▁spin ning ▁wheel ▁to ▁overcome ▁the ▁inher ent ▁inst ability ▁of ▁bal ancing ▁on ▁top ▁of ▁a ▁single ▁rail . ▁ ▁The ▁mon or ail ▁is ▁associated ▁with ▁the ▁names ▁Louis ▁B ren nan , ▁August ▁Sch er l ▁and ▁Py otr ▁Sh il ov sky , ▁who ▁each ▁built ▁full - scale ▁working ▁pro tot ypes ▁during ▁the ▁early ▁part ▁of ▁the ▁tw enti eth ▁century . ▁A ▁version ▁was ▁developed ▁by ▁Ernest ▁F . ▁Sw in ney , ▁Harry ▁Fer re ira ▁and ▁Louis ▁E . ▁Sw in ney ▁in ▁the ▁US ▁in ▁ 1 9 6 2 . ▁▁ ▁The ▁gy ro ▁mon or ail ▁was ▁never ▁developed ▁beyond ▁the ▁prototype ▁stage . ▁ ▁The ▁principal ▁advantage ▁of ▁the ▁mon or ail ▁c ited ▁by ▁Sh il ov sky ▁is ▁the ▁supp ression ▁of ▁hunting ▁oscill ation , ▁a ▁speed ▁limitation ▁encountered ▁by ▁conventional ▁rail ways ▁at